TESTING FOR THE VERIFICATION OF COMPLIANCE OF PV … · 2020. 7. 6. · Report N. 2218 / 0234 - 3 Page 5 of 128 VDE-AR-N 4105:2011-08 2 GENERAL INFORMATION 2.1 Testing Period and

TESTING FOR THE VERIFICATION OF COMPLIANCE OF PV INVERTER WITH :

VDE-AR-N 4105:2011-08: POWER GENERATION SYSTEMS CONNECTED TO THE LOW-VOLTAGE

DISTRIBUTION NETWORK

Protocol PE.T-LE-62

Test Report Number ....................................... : 2218 / 0234 - 3

Trademark ....................................................... :

Tested Model ................................................... : SOFAR 60000TL

Variant Models ................................................ : SOFAR 50000TL, SOFAR 70000TL-HV

APPLICANT

Name ............................................................ : SGS tecnos S.A. (Certification Body)

Address ........................................................ : C/ Trespaderne, 29 - Edificio Barajas 1

28042 MADRID (Spain)

Hired by ........................................................ : Shenzhen SOFARSOLAR Co., Ltd.

Address ........................................................ : 5/F,Building 4, Antongda Industrial Park, No. 1 Liuxian Avenue, Xin’an Street, Bao’an District, Shenzhen City, Guangdong Province, P.R. China

TESTING LABORATORY

Name ............................................................ : SGS Tecnos, S.A. (Electrical Testing Laboratory)

Address ........................................................ : C/ Trespaderne, 29 - Edificio Barajas 1

28042 MADRID (Spain)

Conducted (tested) by .................................. : Roger Hu

(Project Engineer)

Reviewed & Approved by ............................. : Jacobo Tevar (Technical Reviewer)

Fernando Montes

(Laboratory Technical Manager)

Date of issue ................................................. : 10/08/2017

Number of pages ......................................... : 128

Report N. 2218 / 0234 - 3 Page 2 of 128

VDE-AR-N 4105:2011-08

Important Note:

This document is issued by the Company subject to its General Conditions of Service printed overleaf, available on request or accessible at www.sgs.com/terms_and_conditions.htm and, for electronic format documents, subject to Terms and Conditions for Electronic Documents at www.sgs.com/terms_e-document.htm. Attention is drawn to the limitation of liability, indemnification and jurisdiction issues defined therein. Any holder of this document is advised that information contained hereon reflects the Company’s findings at the time of its intervention only and within the limits of Client’s instructions, if any. The Company’s sole responsibility is to its Client and this document does not exonerate parties to a transaction from exercising all their rights and obligations under the transaction documents.

This document cannot be reproduced except in full, without prior written approval of the Company. Any unauthorized alteration, forgery or falsification of the content or appearance of this document is unlawful and offenders may be prosecuted to the fullest extent of the law. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested.

Test Report Historical Revision:

Test Report Version Date Resume

2218 / 0234 - 3

10/ 08 / 2017

First issuance

http://www.sgs.com/terms_and_conditions.htm

Report N. 2218 / 0234 - 3 Page 3 of 128

VDE-AR-N 4105:2011-08

INDEX

1 SCOPE .................................................................................................................. 4

2 GENERAL INFORMATION ......................................................................................... 5 2.1 Testing Period and Climatic conditions .................................................. 5

2.2 Equipment under Testing ....................................................................... 5 2.3 SGS Test Equipment List ...................................................................... 8 2.4 Measurement Uncertainty ...................................................................... 9 2.5 Test set up of the different standard .................................................... 10

2.6 Definitions ............................................................................................ 11

3 RESUME OF TEST RESULTS .................................................................................. 12

4 TEST RESULTS ..................................................................................................... 13 4.1 Rapid voltage changes ........................................................................ 13

4.2 Flickers ................................................................................................ 16 4.3 Harmonics ........................................................................................... 30 4.4 Voltage unbalance ............................................................................... 42 4.5 Commutation notches .......................................................................... 42

4.6 Precautionary measures against voltages drop and interruptions ....... 45 4.7 Three-phase network ........................................................................... 45

4.8 Maximum permissible short-circuit current .......................................... 46 4.9 Active Power Output ............................................................................ 46

4.9.1 Measurement of the active and reactive power range ......................... 46 4.9.2 Lowering the active power by a defined set value ............................... 49

4.9.3 Active power feed-in at overfrequency ................................................. 51 4.9.4 Active power feed-in at underfrequency .............................................. 54

4.10 Reactive Power .................................................................................... 55

4.10.1 Tests of the cos setting accuracy ...................................................... 56

4.10.2 Test for a displacement factor/active power characteristic curve cos (P) ............................................................................................................. 59

4.11 Interface switch .................................................................................... 66 4.11.1 Functional safety .................................................................................. 66

4.11.2 Voltage protection functions ................................................................ 67

4.11.3 Frequency protection functions ............................................................ 76

4.12 Connection conditions and synchronisation ......................................... 83 4.12.1 General ................................................................................................ 83 4.12.2 Reconnection after short interruption ................................................... 88

4.13 Anti islanding ....................................................................................... 91 4.13.1 Test A .................................................................................................. 92

4.13.2 Test B .................................................................................................. 99 4.13.3 Test C ................................................................................................ 106

5 PICTURES .......................................................................................................... 113

6 ELECTRICAL SCHEMES ....................................................................................... 128

Report N. 2218 / 0234 - 3 Page 4 of 128

VDE-AR-N 4105:2011-08

1 SCOPE

SGS Tecnos, S.A. (Electrical Testing Laboratory) has been contract by SGS Tecnos, S.A. (Certification body), in order to perform the testing according the VDE-AR-N 4105:2011-08: Power generation systems connected to the low-voltage distribution network and the VDE V 0124-100:2012-07: Grid integration of generator plants Low-voltage – Test requirements for generator units to be connected to and operated in parallel with low-voltage distribution networks.

Report N. 2218 / 0234 - 3 Page 5 of 128

VDE-AR-N 4105:2011-08

2 GENERAL INFORMATION

2.1 Testing Period and Climatic conditions The necessary testing has been performed along 79 working days between the 3rd of May and the 19th of July of 2018 and the 10th of August of 2018. All the tests and checks have been performed in accordance with the reference Standard (the tests are done at 25 ± 5ºC, 96 kPa ± 10 kPa and 45% RH ± 10% RH).

SITE TEST

Name ............................................................ : Shenzhen SOFARSOLAR Co., Ltd.

Address ........................................................ : 5/F,Building 4, Antongda Industrial Park, No. 1 Liuxian

Avenue, Xin’an Street, Bao’an District, Shenzhen City,

Guangdong Province, P.R. China

2.2 Equipment under Testing

Apparatus type ............................................ : Solar Grid-tied Inverter

Installation ................................................... : Fixed (permanent connection)

Manufacturer ............................................... : Shenzhen SOFARSOLAR Co., Ltd.

Trade mark .................................................. :

Type............................................................. : SOFAR

Model / Type reference ............................... : SOFAR 60000TL

Serial Number ............................................. : ZJ1ES160HCJ252

Software Version ......................................... : V2.00

Rated Characteristics .................................. : DC input: 250-950V, Max. 40/40/40A

AC output: 3~/N/PE 230/400Vac, 50Hz, 90A, 60000VA

Date of manufacturing: July 2017

Input............................................................. : DC

Output ........................................................... 3~/N/PE

Class of protection against electric shock ... : Class I

Degree of protection against moisture ........ : IP 65

Type of connection to the main supply........ : Three phase – Fixed installation

Cooling group .............................................. : Fans

Modular ....................................................... : No

Internal Transformer .................................... : No

Report N. 2218 / 0234 - 3 Page 6 of 128

VDE-AR-N 4105:2011-08

Copy of marking plate:

Note:

1. The above markings are the minimum requirements required by the safety standard. For the final production samples, the additional markings which do not give rise to misunderstanding may be added.

2. Label is attached on the side surface of enclosure and visible after installation

Report N. 2218 / 0234 - 3 Page 7 of 128

VDE-AR-N 4105:2011-08

Equipment under testing:

- SOFAR 60000TL

The variants models are:

- SOFAR 50000TL - SOFAR 70000TL-HV

The variants models have been included in this test report without tests because the following features don´t change regarding to the tested model:

- Same connection system and hardware topology - Same control algorithm. - Output power within 2,5 and 2/3 of the EUT or Modular inverters. - Same Firmware Version

The results obtained apply only to the particular sample tested that is the subject of the present test report. The most unfavorable result values of the verifications and tests performed are contained herein. Throughout this report a point (comma) is used as the decimal separator.

Report N. 2218 / 0234 - 3 Page 8 of 128

VDE-AR-N 4105:2011-08

2.3 SGS Test Equipment List

No. Equipment Name MARK/Model No. Equipment No. Equipment

calibration due date

So

fars

oalr

1 Digital

oscilloscope Agilent / DSO5014A MY50070266 2019-02-27

2 Current clamp FLUKE / i1000s 32233919 2019-02-27



5 Differential probe Sanhua / SI-9110 152655 2019-02-27



8 Power analyzer ZLG / PA3000 703010002 2019-02-27

9 Power analyzer YOKOGAWA /

WT3000 91N61088 2019-02-27

10 Temperature & Humidity meter

VICTOR / TH101B SH-W001 2019-02-27

11 Digital

oscilloscope HIOKI / MR8847A 180418828 2019-07-02

12 Power analyzer HIOKI / PW6001 150901722 2019-05-22

SG

S

13 True RMS Multimeter

Fluke / 289C GZE012-53 (22930028)

2019-03-05

Note: All the instruments have been used in valid period of calibration.

Report N. 2218 / 0234 - 3 Page 9 of 128

VDE-AR-N 4105:2011-08

2.4 Measurement Uncertainty

Associated uncertainties through measurements showed in this this report are the maximum allowable uncertainties.

Magnitude Uncertainty

Voltage measurement ±1.5 %

Current measurement ±2.0 %

Frequency measurement ±0.2 %

Time measurement ±0.2 %

Power measurement ±2.5 %

Phase Angle ±1º

Temperature ±3º C

Note1: Measurements uncertainties showed in this table are maximum allowable uncertainties. The measurement uncertainties associated with other parameters measured during the tests are in the laboratory at disposal of the petitioner. Note2: Where the standard requires lower uncertainties that those in this table. Most restrictive uncertainty has been considered.

Report N. 2218 / 0234 - 3 Page 10 of 128

VDE-AR-N 4105:2011-08

2.5 Test set up of the different standard Below is the simplified construction of the test set up.

Different equipment has been used to take measures as it shows in chapter 2.3. Current and voltage clamps have been connected to the inverter input / output for all the tests. All the tests described in the following pages have used this specified test setup. The test bench used includes:

EQUIPMENT MARK / MODEL

RATED CHARACTERISTICS OWNER / ID.CODE

AC source Kwell / AFG-S-

33800 Voltage: 0-600 V

750kVA Sofarsolar / EP-026

PV source Kwell / TVS-

630kW Voltage: 0 - 1000 V

630kW Sofarsolar / EP-027

Report N. 2218 / 0234 - 3 Page 11 of 128

VDE-AR-N 4105:2011-08

2.6 Definitions

In Nominal Current P Power

p.u Per unit I Current

Pn Nominal Power M Change for real power

Sn Apparent Power N Change for reactive power

PGU Power Generation Unit F Frequency

Pst Short-term flicker strength Qf Quality factor

Plt Long-term flicker strength NS Network and System

C ΨK Flicker coefficient for continuous operation Un Nominal Voltage

Sr Apparent Power Rated PWHD Partial weight harmonic distortion

Sk Short-circuit Apparent Power THD Total harmonic distortion

Kimax Maximum switching current factor Ztest Test circuit impedance at which

the emission test

Zref The reference impedance EUT Equipment under test

Report N. 2218 / 0234 - 3 Page 12 of 128

VDE-AR-N 4105:2011-08

3 RESUME OF TEST RESULTS

INTERPRETATION KEYS

Test object does meet the requirement ...................................................................... : P Pass

Test object does not meet the requirement ................................................................ : F Fails

Test case does not apply to the test object ................................................................ : N/A Not applicable

To make a reference to a table or an annex. .............................................................. : See additional sheet

To indicate that the test has not been realized ........................................................... : N/R Not realized

STANDARD CLAUSE

STANDARD REQUIREMENTS

RESULT VDE-AR-N 4105:2011-08

TEST REMARKS

5.4 System reactions

5.4.2 Rapid Voltage Changes P

5.4.3 Flickers P

5.4.4 Current Harmonics P

Interharmonics at continuous operation P

Higher frequency components P

5.4.5 Voltage unbalance N/A

5.4.6 Commutation notches P

5.4.9 Precautionary measures against voltage drops and interruptions

P

5.6 Three-phase network P

5.6.3 Three-phase inverter systems P

5.7 Behaviour of the power generation system at the network

P

5.7.2 Maximum permissible short-circuit current P

5.7.3.3 Active power feed-in at over frequency P

5.7.3.4 Active power feed-in at underfrequency P

5.7.5 Verification of reactive power values P

Verification of reactive power transition function P

6.5 Protective devices for the interface switch. P

6.5.2 Protective functions P

Voltage monitoring -20% P

Voltage monitoring +10% P

Voltage monitoring +15% P

Frequency monitoring: 51,5Hz P

Frequency monitoring: 47,5Hz P

6.5.3 Anti-Islanding Protection P

8.3 Reconnection P

Note: The declaration of conformity has been evaluated taking into account the IEC Guide 115.

Report N. 2218 / 0234 - 3 Page 13 of 128

VDE-AR-N 4105:2011-08

4 TEST RESULTS

4.1 RAPID VOLTAGE CHANGES

The rapid voltage changes test has been measured according to the paragraph 5.4.2 of VDE-AR-N 4105:2011-08 and the paragraph 5.1.2 of VDE V 0124-100:2012-07, at the required conditions. The maximum voltage change does not exceed a value of 3% Umax and it is calculated as follows:

Semax is the maximum apparent power of inverter.

Skv is the network short circuit power.

Ia is staring current

IrE is rated current

The following are the result for calculated ki

Making operation without default (of primary energy carrier) ki 0.074

Worst case at switch over of generator sections ki 0.040

Making operation at reference conditions (of primary energy carrier) ki 0.079

Breaking operation at nominal power ki 0.038

Worst-case value of all switching operations kimax 0.079

According to the performed tests, the Skv minimum for with the inverter can be installed is 270 kVA. After calculate: Δumax= 1.75% The information provided above should be taken into account for the particular conditions of the installation of the inverter.

Report N. 2218 / 0234 - 3 Page 14 of 128

VDE-AR-N 4105:2011-08

Making operation without default (of primary energy carrier)

ki = Ia / Ire = 0.074

Vmax (dc) to Vmin (dc) at 100% Pn

ki = Ia / Ire = 1.057

Report N. 2218 / 0234 - 3 Page 15 of 128

VDE-AR-N 4105:2011-08

Making operation at reference conditions (of primary energy carrier)

ki = Ia / Ire = 0.079

Breaking operation at nominal power

ki = Ia / Ire = 0.038

Report N. 2218 / 0234 - 3 Page 16 of 128

VDE-AR-N 4105:2011-08

4.2 FLICKERS The Flickers test has been performed according to the paragraph 5.4.3 ofVDE-AR-N 4105:2011-08 and the paragraph 5.1.3 of VDE V 0124-100:2012-07. Ithas been taken the EN 61000-3-11 as reference standard due to the output current of the inverter is comprised among a range of 16-75 A. In addition of the requirements of this reference standard, VDE-AR-N 4105: 2011 requires a Plt value less or equal to 0,5. In table below are offered the values measured:

Pn(%) Limit 5 % 15 %

Phase -- A B C A B C

PST ≤ 1 0.34 0.37 0.30 0.34 0.37 0.30

PLT ≤ 0,5 0.32 0.33 0.28 0.32 0.35 0.26

dc [%] ≤ 3,30 0.27 0.40 0.35 0.27 0.40 0.35

Dmax [%] 4 1.29 1.29 1.09 1.24 1.29 1.09

Pn(%) Limit 25 % 33 %


PST ≤ 1 0.34 0.37 0.30 0.33 0.28 0.34

PLT ≤ 0,5 0.33 0.34 0.27 0.28 0.24 0.29

dc [%] ≤ 3,30 0.27 0.40 0.35 0.55 0.46 0.25

Dmax [%] 4 1.24 1.29 1.09 1.28 1.11 1.35

Pn(%) Limit 45 % 55 %


PST ≤ 1 0.29 0.25 0.30 0.35 0.35 0.31

PLT ≤ 0,5 0.28 0.24 0.29 0.28 0.31 0.27

dc [%] ≤ 3,30 0.55 0.28 0.25 0.20 0.35 0.40

Dmax [%] 4 1.28 1.11 1.29 1.42 1.49 1.51

Pn(%) Limit 66 % 75 %


PST ≤ 1 0.35 0.31 0.37 0.29 0.31 0.37

PLT ≤ 0,5 0.29 0.26 0.31 0.29 0.26 0.31

dc [%] ≤ 3,30 0.22 0.30 0.25 0.27 0.23 0.36

Dmax [%] 4 1.36 1.23 1.67 1.36 1.23 1.36

Pn(%) Limit 85 % 100 % First time


PST ≤ 1 0.35 0.35 0.31 0.32 0.34 0.30

PLT ≤ 0,5 0.28 0.31 0.28 0.31 0.34 0.30

dc [%] ≤ 3,30 0.25 0.35 0.51 0.24 0.33 0.30

Dmax [%] 4 1.42 1.49 1.51 1.29 1.36 1.50

Pn(%) Limit 100 % Second time 100% Third time


PST ≤ 1 0.35 0.33 0.27 0.32 0.36 0.30

PLT ≤ 0,5 0.29 0.29 0.26 0.31 0.33 0.27

dc [%] ≤ 3,30 0.26 0.35 0.51 0.20 0.27 0.30

Dmax [%] 4 1.42 1.49 1.51 1.49 1.50 1.50

As it can be seen in the next screenshots, this test has 12 steps. The values took of Pst, Plt, dc

and dmax are the most unfavorable of the 12 steps.

Report N. 2218 / 0234 - 3 Page 17 of 128

VDE-AR-N 4105:2011-08

According to the standard, the flicker coefficient cΨk must be determined for the impedance angle 32°.

The flicker coefficient is determined on the basis of the previously measuredPstvalues in accordance

with the following formula:

cΨk Pst (Sk/Pn).

Whereby the following applies:

Pst Short-term flicker value measured on the network substitute element;

Sk Short circuit power of the network substitute element (during determination of the corresponding Pst

values). Check the datasheet of the AC source (Kwell / AFG-S-33800): Sk,fic =312.5kVA Imax=1250A, and Pn=60 kW following parameters from Sk / Pn = 5.21 These tests are only based on a 32° network impedance angle. Ztest impendance test (Test method refer to IEC 61000-3-11): RA = 0.24 W; XA = j 0.15 W at 50 Hz; RN = 0.16 W; XN = j 0.10 W at 50 Hz. The impedance test Ztest is the same that the reference impedance Zref. It has also been calculated the flicker coefficient in function of different network impedance phase angles. These calculations are offered in the table below.

Network impedance phase angle, Ψk 32°

Average active power Flicker coefficient, C (Ψk, P)

Phase A B C

P = 5%Pn 1.77 1.93 1.56

P = 15% Pn 1.77 1.93 1.56

P = 25% Pn 1.77 1.93 1.56

P = 33% Pn 1.72 1.30 1.77

P = 45% Pn 1.51 1.30 1.56

P = 55% Pn 1.82 1.82 1.62

P = 66% Pn 1.82 1.62 1.93

P = 75% Pn 1.51 1.62 1.93

P = 85% Pn 1.82 1.82 1.62

P = 100% Pn (First time) 1.67 1.77 1.56

P = 100% Pn (Second time) 1.82 1.72 1.41

P = 100% Pn (Third time) 1.67 1.88 1.46

Report N. 2218 / 0234 - 3 Page 18 of 128

VDE-AR-N 4105:2011-08

Power=5% Pn

Phase A

Phase B

Phase C

Report N. 2218 / 0234 - 3 Page 19 of 128

VDE-AR-N 4105:2011-08

Power=15% Pn

Phase A

Phase B

Phase C

Report N. 2218 / 0234 - 3 Page 20 of 128

VDE-AR-N 4105:2011-08

Power=25% Pn

Phase A

Phase B

Phase C

Report N. 2218 / 0234 - 3 Page 21 of 128

VDE-AR-N 4105:2011-08

Power=33% Pn

Phase A

Phase B

Phase C

Report N. 2218 / 0234 - 3 Page 22 of 128

VDE-AR-N 4105:2011-08

Power=45% Pn

Phase A

Phase B

Phase C

Report N. 2218 / 0234 - 3 Page 23 of 128

VDE-AR-N 4105:2011-08

Power=55% Pn

Phase A

Phase B

Phase C

Report N. 2218 / 0234 - 3 Page 24 of 128

VDE-AR-N 4105:2011-08

Power=66% Pn

Phase A

Phase B

Phase C

Report N. 2218 / 0234 - 3 Page 25 of 128

VDE-AR-N 4105:2011-08

Power=75% Pn

Phase A

Phase B

Phase C

Report N. 2218 / 0234 - 3 Page 26 of 128

VDE-AR-N 4105:2011-08

Power=85% Pn

Phase A

Phase B

Phase C

Report N. 2218 / 0234 - 3 Page 27 of 128

VDE-AR-N 4105:2011-08

P = 100% Pn (First time)

Phase A

Phase B

Phase C

Report N. 2218 / 0234 - 3 Page 28 of 128

VDE-AR-N 4105:2011-08

P = 100% Pn (Second time)

Phase A

Phase B

Phase C

Report N. 2218 / 0234 - 3 Page 29 of 128

VDE-AR-N 4105:2011-08

P = 100% Pn (Third time)

Phase A

Phase B

Phase C

Report N. 2218 / 0234 - 3 Page 30 of 128

VDE-AR-N 4105:2011-08

4.3 HARMONICS

The current harmonics have been measured according to the paragraph 5.4.4 of the VDE-AR-N 4105:2011-08 and the paragraph 5.1.4.1 of VDE V 0124-100:2012-07, at the required power values. It has been taken the EN 61000-3-12 as reference standard due to the output current of the inverter is comprised among a range of 16-75 A. The values measured for current harmonics is respectively offered in the following points.

Phase A

P (%Pn)

0 10 20 30 40 50 60 70 80 90 100 LIMIT (%) Nr./

Order Ih(%) Ih(%) Ih(%) Ih(%) Ih(%) Ih(%) Ih(%) Ih(%) Ih(%) Ih(%) Ih(%)

2 0.000 0.030 0.060 0.012 0.043 0.055 0.115 0.047 0.077 0.129 0.157 8.000

3 0.002 0.102 0.039 0.076 0.125 0.080 0.082 0.076 0.052 0.191 0.142 5.333

4 0.000 0.026 0.076 0.040 0.010 0.037 0.045 0.016 0.014 0.033 0.037 4.000

5 0.010 0.085 0.227 0.151 0.179 0.211 0.238 0.237 0.250 0.086 0.165 10.700

6 0.000 0.012 0.031 0.020 0.020 0.005 0.069 0.033 0.032 0.063 0.017 2.667

7 0.015 0.025 0.148 0.090 0.142 0.163 0.165 0.154 0.218 0.229 0.252 7.200

8 0.000 0.008 0.029 0.048 0.037 0.031 0.057 0.046 0.043 0.014 0.077 2.000

9 0.002 0.056 0.033 0.101 0.102 0.105 0.163 0.121 0.121 0.080 0.089 1.778

10 0.000 0.012 0.008 0.044 0.030 0.014 0.021 0.018 0.030 0.010 0.086 1.600

11 0.004 0.227 0.274 0.278 0.199 0.160 0.213 0.171 0.028 0.014 0.054 3.100

12 0.000 0.004 0.012 0.011 0.035 0.020 0.017 0.014 0.021 0.033 0.010 1.333

13 0.007 0.107 0.229 0.115 0.057 0.155 0.183 0.193 0.019 0.074 0.122 2.000

14 0.000 0.010 0.046 0.060 0.073 0.052 0.057 0.056 0.042 0.060 0.068 1.000

15 0.002 0.058 0.046 0.038 0.054 0.070 0.075 0.077 0.103 0.145 0.153 1.000

16 0.000 0.008 0.028 0.060 0.093 0.076 0.072 0.063 0.027 0.027 0.066 1.000

17 0.011 0.125 0.149 0.166 0.266 0.321 0.301 0.322 0.313 0.322 0.332 2.000

18 0.000 0.009 0.021 0.026 0.019 0.015 0.012 0.007 0.011 0.018 0.029 1.000

19 0.012 0.179 0.313 0.228 0.244 0.296 0.278 0.309 0.266 0.252 0.232 1.500

20 0.000 0.004 0.037 0.052 0.026 0.018 0.014 0.010 0.016 0.012 0.019 1.000

21 0.004 0.060 0.073 0.024 0.033 0.037 0.045 0.048 0.048 0.032 0.063 1.000

22 0.001 0.007 0.008 0.037 0.036 0.031 0.033 0.024 0.017 0.015 0.022 1.000

23 0.007 0.055 0.057 0.073 0.053 0.112 0.089 0.104 0.178 0.201 0.205 1.500

24 0.000 0.001 0.023 0.026 0.013 0.021 0.020 0.012 0.005 0.018 0.017 1.000

25 0.007 0.035 0.056 0.093 0.134 0.159 0.141 0.169 0.154 0.153 0.181 1.500

26 0.000 0.002 0.027 0.024 0.010 0.013 0.012 0.018 0.005 0.018 0.024 1.000

27 0.004 0.012 0.013 0.030 0.021 0.034 0.036 0.031 0.054 0.047 0.037 1.000

28 0.001 0.004 0.006 0.004 0.001 0.006 0.006 0.011 0.011 0.016 0.025 1.000

29 0.003 0.088 0.061 0.073 0.022 0.042 0.032 0.057 0.088 0.116 0.110 1.000

30 0.000 0.003 0.018 0.019 0.017 0.007 0.005 0.004 0.007 0.008 0.020 1.000

31 0.003 0.039 0.013 0.018 0.035 0.062 0.050 0.067 0.068 0.086 0.100 1.000

32 0.000 0.002 0.011 0.018 0.020 0.009 0.006 0.006 0.006 0.013 0.018 1.000

33 0.001 0.013 0.011 0.008 0.018 0.004 0.011 0.007 0.023 0.020 0.014 1.000

34 0.000 0.002 0.011 0.015 0.008 0.001 0.002 0.004 0.001 0.005 0.007 1.000

35 0.001 0.044 0.019 0.030 0.053 0.062 0.059 0.063 0.040 0.060 0.055 1.000

36 0.000 0.002 0.006 0.011 0.004 0.005 0.007 0.004 0.006 0.005 0.003 1.000

37 0.003 0.059 0.026 0.014 0.022 0.034 0.031 0.044 0.037 0.054 0.070 1.000

38 0.001 0.002 0.004 0.005 0.000 0.003 0.002 0.008 0.006 0.004 0.006 1.000

39 0.004 0.003 0.012 0.013 0.006 0.003 0.006 0.005 0.007 0.007 0.006 1.000

40 0.000 0.003 0.001 0.003 0.007 0.005 0.008 0.010 0.004 0.002 0.006 1.000

THD (%)

0.029 0.401 0.601 0.511 0.552 0.634 0.666 0.666 0.631 0.649 0.698 13.000

PWHD (%)

0.098 1.259 1.683 1.528 1.844 2.237 2.074 2.301 2.274 2.420 2.519 22.000

Report N. 2218 / 0234 - 3 Page 31 of 128

VDE-AR-N 4105:2011-08

Phase B

P (%Pn)

0 10 20 30 40 50 60 70 80 90 100 LIMIT (%) Nr./


2 0.000 0.033 0.022 0.028 0.020 0.019 0.061 0.047 0.028 0.145 0.089 8.000

3 0.001 0.056 0.025 0.045 0.120 0.076 0.015 0.080 0.068 0.227 0.126 5.333

4 0.000 0.023 0.026 0.014 0.025 0.046 0.031 0.032 0.010 0.053 0.027 4.000

5 0.014 0.166 0.289 0.215 0.225 0.234 0.253 0.258 0.217 0.181 0.180 10.700

6 0.000 0.016 0.009 0.007 0.005 0.011 0.028 0.004 0.026 0.047 0.033 2.667

7 0.013 0.095 0.153 0.030 0.145 0.193 0.161 0.178 0.234 0.330 0.383 7.200

8 0.000 0.008 0.007 0.052 0.014 0.027 0.041 0.035 0.009 0.033 0.049 2.000

9 0.003 0.030 0.045 0.066 0.065 0.069 0.090 0.067 0.069 0.062 0.063 1.778

10 0.001 0.004 0.015 0.042 0.042 0.026 0.015 0.009 0.004 0.030 0.049 1.600

11 0.008 0.202 0.249 0.316 0.219 0.195 0.269 0.215 0.103 0.111 0.113 3.100

12 0.000 0.005 0.020 0.012 0.013 0.004 0.016 0.007 0.028 0.028 0.042 1.333

13 0.001 0.143 0.201 0.042 0.042 0.049 0.088 0.084 0.083 0.179 0.098 2.000

14 0.001 0.009 0.026 0.044 0.051 0.043 0.048 0.035 0.020 0.040 0.059 1.000

15 0.003 0.044 0.043 0.048 0.036 0.017 0.022 0.024 0.074 0.102 0.078 1.000

16 0.000 0.009 0.035 0.063 0.079 0.063 0.058 0.052 0.024 0.022 0.047 1.000

17 0.008 0.104 0.139 0.078 0.183 0.238 0.213 0.254 0.235 0.344 0.389 2.000

18 0.000 0.004 0.011 0.032 0.018 0.004 0.004 0.001 0.008 0.012 0.021 1.000

19 0.016 0.190 0.269 0.179 0.271 0.335 0.328 0.350 0.289 0.225 0.250 1.500

20 0.001 0.005 0.016 0.010 0.010 0.020 0.014 0.008 0.014 0.023 0.024 1.000

21 0.004 0.004 0.024 0.016 0.048 0.036 0.037 0.039 0.012 0.022 0.042 1.000

22 0.000 0.005 0.019 0.047 0.030 0.022 0.019 0.019 0.020 0.013 0.014 1.000

23 0.007 0.088 0.084 0.040 0.082 0.116 0.113 0.122 0.158 0.198 0.220 1.500

24 0.001 0.006 0.013 0.012 0.011 0.016 0.016 0.015 0.008 0.013 0.010 1.000

25 0.007 0.044 0.006 0.102 0.094 0.138 0.139 0.166 0.194 0.182 0.169 1.500

26 0.001 0.008 0.008 0.020 0.009 0.006 0.009 0.013 0.016 0.021 0.036 1.000

27 0.004 0.022 0.005 0.024 0.009 0.011 0.007 0.005 0.016 0.043 0.036 1.000

28 0.001 0.001 0.025 0.023 0.016 0.009 0.008 0.008 0.012 0.010 0.011 1.000

29 0.003 0.099 0.060 0.080 0.022 0.037 0.018 0.049 0.075 0.125 0.121 1.000

30 0.000 0.002 0.008 0.004 0.003 0.003 0.003 0.001 0.001 0.009 0.014 1.000

31 0.002 0.029 0.009 0.023 0.036 0.042 0.037 0.068 0.086 0.074 0.096 1.000

32 0.000 0.003 0.008 0.007 0.005 0.001 0.001 0.004 0.007 0.006 0.010 1.000

33 0.001 0.017 0.011 0.005 0.007 0.015 0.013 0.016 0.018 0.022 0.015 1.000

34 0.000 0.001 0.004 0.015 0.015 0.010 0.010 0.006 0.005 0.001 0.006 1.000

35 0.002 0.052 0.027 0.038 0.049 0.061 0.063 0.069 0.056 0.055 0.058 1.000

36 0.000 0.002 0.001 0.005 0.002 0.004 0.005 0.004 0.004 0.003 0.001 1.000

37 0.003 0.056 0.037 0.022 0.030 0.031 0.027 0.039 0.037 0.033 0.043 1.000

38 0.000 0.002 0.002 0.005 0.002 0.001 0.003 0.003 0.005 0.001 0.010 1.000

39 0.001 0.009 0.014 0.006 0.009 0.010 0.008 0.013 0.011 0.006 0.008 1.000

40 0.000 0.002 0.003 0.004 0.002 0.003 0.007 0.009 0.003 0.004 0.005 1.000

THD (%)

0.424 0.570 0.483 0.534 0.605 0.622 0.646 0.599 0.744 0.759 0.424 13.000

PWHD (%)

1.296 1.475 1.240 1.665 2.076 1.993 2.244 2.179 2.403 2.611 1.296 22.000

Report N. 2218 / 0234 - 3 Page 32 of 128

VDE-AR-N 4105:2011-08

Phase C

P (%Pn)

0 10 20 30 40 50 60 70 80 90 100 LIMIT (%) Nr./


2 0.000 0.008 0.077 0.024 0.054 0.056 0.059 0.016 0.083 0.071 0.170 8.000

3 0.002 0.048 0.020 0.030 0.061 0.015 0.085 0.066 0.069 0.135 0.162 5.333

4 0.000 0.003 0.058 0.029 0.028 0.030 0.073 0.041 0.011 0.042 0.022 4.000

5 0.014 0.166 0.243 0.143 0.162 0.179 0.130 0.160 0.109 0.224 0.315 10.700

6 0.000 0.004 0.023 0.017 0.019 0.007 0.045 0.032 0.028 0.023 0.025 2.667

7 0.013 0.120 0.043 0.088 0.211 0.247 0.272 0.248 0.303 0.280 0.333 7.200

8 0.000 0.009 0.027 0.053 0.044 0.006 0.026 0.016 0.038 0.023 0.041 2.000

9 0.001 0.054 0.053 0.044 0.056 0.058 0.082 0.061 0.082 0.022 0.051 1.778

10 0.000 0.011 0.009 0.053 0.022 0.016 0.034 0.025 0.037 0.019 0.036 1.600

11 0.005 0.247 0.212 0.308 0.296 0.231 0.329 0.259 0.100 0.116 0.115 3.100

12 0.000 0.008 0.010 0.015 0.035 0.021 0.028 0.017 0.048 0.030 0.031 1.333

13 0.007 0.211 0.200 0.083 0.099 0.152 0.122 0.146 0.101 0.105 0.031 2.000

14 0.000 0.007 0.028 0.071 0.092 0.070 0.069 0.054 0.061 0.021 0.047 1.000

15 0.002 0.040 0.022 0.047 0.085 0.081 0.093 0.068 0.060 0.059 0.076 1.000

16 0.001 0.003 0.035 0.029 0.064 0.054 0.056 0.049 0.026 0.035 0.050 1.000

17 0.015 0.102 0.158 0.126 0.267 0.340 0.346 0.359 0.338 0.243 0.328 2.000

18 0.000 0.005 0.025 0.045 0.017 0.018 0.013 0.008 0.004 0.010 0.026 1.000

19 0.011 0.223 0.267 0.166 0.213 0.269 0.255 0.274 0.204 0.274 0.288 1.500

20 0.000 0.003 0.034 0.044 0.020 0.020 0.013 0.017 0.017 0.018 0.007 1.000

21 0.002 0.057 0.087 0.039 0.031 0.044 0.041 0.050 0.042 0.010 0.028 1.000

22 0.000 0.004 0.026 0.050 0.036 0.028 0.029 0.026 0.022 0.013 0.007 1.000

23 0.010 0.074 0.041 0.059 0.040 0.082 0.086 0.105 0.180 0.177 0.191 1.500

24 0.001 0.007 0.023 0.018 0.006 0.005 0.005 0.010 0.004 0.005 0.014 1.000

25 0.008 0.020 0.050 0.084 0.096 0.109 0.101 0.140 0.133 0.218 0.213 1.500

26 0.000 0.007 0.021 0.022 0.007 0.018 0.020 0.023 0.017 0.005 0.014 1.000

27 0.001 0.029 0.011 0.017 0.024 0.034 0.038 0.029 0.040 0.009 0.003 1.000

28 0.000 0.002 0.025 0.019 0.016 0.004 0.005 0.012 0.009 0.013 0.029 1.000

29 0.005 0.108 0.063 0.059 0.019 0.026 0.026 0.056 0.102 0.099 0.103 1.000

30 0.001 0.005 0.012 0.015 0.020 0.008 0.007 0.002 0.003 0.001 0.010 1.000

31 0.002 0.035 0.006 0.008 0.039 0.047 0.036 0.050 0.052 0.103 0.126 1.000

32 0.000 0.001 0.003 0.018 0.022 0.007 0.005 0.003 0.003 0.008 0.012 1.000

33 0.000 0.005 0.012 0.013 0.012 0.012 0.004 0.011 0.011 0.002 0.012 1.000

34 0.000 0.003 0.015 0.003 0.010 0.010 0.011 0.006 0.004 0.005 0.002 1.000

35 0.002 0.049 0.025 0.036 0.055 0.063 0.062 0.071 0.044 0.069 0.063 1.000

36 0.000 0.004 0.005 0.011 0.005 0.007 0.006 0.005 0.002 0.004 0.002 1.000

37 0.001 0.055 0.023 0.015 0.026 0.030 0.021 0.029 0.020 0.057 0.071 1.000

38 0.000 0.000 0.004 0.005 0.002 0.004 0.004 0.008 0.005 0.004 0.011 1.000

39 0.003 0.011 0.006 0.008 0.003 0.007 0.005 0.010 0.004 0.001 0.004 1.000

40 0.000 0.002 0.004 0.004 0.006 0.003 0.002 0.002 0.000 0.005 0.010 1.000

THD (%)

0.032 0.493 0.529 0.467 0.584 0.642 0.687 0.670 0.618 0.655 0.780 13.000

PWHD (%)

0.108 1.399 1.533 1.247 1.717 2.096 2.067 2.240 2.149 2.312 2.598 22.000

Report N. 2218 / 0234 - 3 Page 33 of 128

VDE-AR-N 4105:2011-08

Current Harmonics

THD and PWHD

Report N. 2218 / 0234 - 3 Page 34 of 128

VDE-AR-N 4105:2011-08

The results of inter-harmonics measurements are represented in the tables and graphics below.

Phase A

P (%Pn)

0 10 20 30 40 50 60 70 80 90 100

f [Hz] Ih(%) Ih(%) Ih(%) Ih(%) Ih(%) Ih(%) Ih(%) Ih(%) Ih(%) Ih(%) Ih(%)

75 0.001 0.035 0.241 0.081 0.290 0.354 0.282 0.061 0.043 0.336 0.354

125 0.001 0.049 0.241 0.077 0.299 0.430 0.294 0.064 0.036 0.348 0.370

175 0.003 0.022 0.206 0.052 0.255 0.343 0.278 0.041 0.034 0.249 0.264

225 0.001 0.031 0.184 0.044 0.209 0.314 0.225 0.029 0.040 0.224 0.245

275 0.001 0.029 0.180 0.034 0.187 0.257 0.202 0.026 0.044 0.185 0.203

325 0.001 0.033 0.132 0.039 0.130 0.196 0.144 0.034 0.030 0.146 0.168

375 0.001 0.028 0.107 0.031 0.115 0.155 0.126 0.043 0.020 0.137 0.132

425 0.001 0.034 0.092 0.027 0.081 0.118 0.099 0.038 0.037 0.096 0.103

475 0.000 0.020 0.071 0.026 0.064 0.081 0.074 0.030 0.029 0.073 0.083

525 0.001 0.038 0.055 0.028 0.053 0.078 0.070 0.027 0.030 0.055 0.072

575 0.001 0.030 0.050 0.027 0.045 0.064 0.044 0.025 0.039 0.050 0.065

625 0.001 0.027 0.022 0.023 0.036 0.064 0.045 0.028 0.030 0.057 0.051

675 0.001 0.037 0.033 0.026 0.032 0.047 0.038 0.032 0.041 0.045 0.045

725 0.001 0.023 0.017 0.024 0.025 0.040 0.026 0.019 0.026 0.033 0.025

775 0.001 0.034 0.023 0.025 0.028 0.037 0.023 0.018 0.030 0.029 0.025

825 0.001 0.029 0.019 0.019 0.015 0.032 0.019 0.020 0.017 0.025 0.031

875 0.003 0.093 0.037 0.033 0.010 0.027 0.024 0.022 0.035 0.020 0.023

925 0.001 0.025 0.024 0.023 0.018 0.024 0.018 0.022 0.015 0.034 0.024

975 0.002 0.067 0.025 0.026 0.014 0.021 0.016 0.028 0.028 0.022 0.026

1025 0.001 0.029 0.021 0.018 0.017 0.025 0.020 0.022 0.018 0.026 0.028

1075 0.001 0.042 0.024 0.041 0.017 0.025 0.027 0.050 0.034 0.028 0.026

1125 0.001 0.028 0.013 0.023 0.009 0.017 0.013 0.019 0.016 0.017 0.016

1175 0.002 0.040 0.019 0.067 0.015 0.018 0.021 0.053 0.045 0.021 0.019

1225 0.001 0.031 0.008 0.026 0.010 0.014 0.011 0.023 0.016 0.025 0.019

1275 0.001 0.020 0.016 0.033 0.013 0.011 0.012 0.031 0.028 0.017 0.017

1325 0.001 0.022 0.012 0.017 0.009 0.018 0.012 0.023 0.021 0.015 0.013

1375 0.001 0.026 0.013 0.041 0.007 0.009 0.011 0.030 0.029 0.016 0.018

1425 0.001 0.026 0.016 0.026 0.007 0.014 0.009 0.018 0.015 0.006 0.011

1475 0.003 0.017 0.009 0.036 0.010 0.010 0.011 0.041 0.040 0.011 0.012

1525 0.001 0.022 0.009 0.022 0.008 0.012 0.009 0.022 0.023 0.013 0.010

1575 0.002 0.020 0.010 0.017 0.007 0.009 0.008 0.023 0.031 0.009 0.011

1625 0.002 0.028 0.010 0.025 0.006 0.015 0.010 0.020 0.016 0.012 0.014

1675 0.001 0.017 0.010 0.021 0.007 0.008 0.007 0.017 0.022 0.010 0.013

1725 0.001 0.026 0.009 0.046 0.006 0.010 0.010 0.024 0.021 0.011 0.010

1775 0.001 0.015 0.008 0.025 0.006 0.008 0.006 0.028 0.031 0.008 0.011

1825 0.001 0.026 0.005 0.030 0.007 0.011 0.006 0.017 0.024 0.009 0.009

1875 0.001 0.020 0.007 0.010 0.006 0.007 0.007 0.018 0.029 0.007 0.009

1925 0.002 0.025 0.010 0.035 0.005 0.013 0.009 0.021 0.020 0.011 0.010

1975 0.001 0.020 0.008 0.016 0.006 0.010 0.006 0.027 0.030 0.009 0.010

Report N. 2218 / 0234 - 3 Page 35 of 128

VDE-AR-N 4105:2011-08

Phase B

P (%Pn)

0 10 20 30 40 50 60 70 80 90 100


75 0.001 0.039 0.127 0.065 0.143 0.179 0.172 0.046 0.026 0.549 0.489

125 0.001 0.050 0.091 0.047 0.137 0.162 0.156 0.087 0.035 0.248 0.317

175 0.003 0.044 0.084 0.035 0.097 0.112 0.102 0.021 0.018 0.213 0.223

225 0.001 0.034 0.090 0.032 0.071 0.107 0.093 0.024 0.021 0.189 0.183

275 0.001 0.032 0.078 0.025 0.055 0.096 0.070 0.035 0.022 0.153 0.145

325 0.001 0.036 0.025 0.037 0.045 0.080 0.055 0.022 0.026 0.116 0.144

375 0.001 0.029 0.022 0.022 0.051 0.074 0.054 0.029 0.035 0.074 0.097

425 0.001 0.037 0.029 0.017 0.048 0.075 0.059 0.023 0.024 0.058 0.069

475 0.001 0.017 0.019 0.019 0.044 0.041 0.045 0.019 0.023 0.043 0.050

525 0.001 0.029 0.027 0.029 0.041 0.046 0.041 0.022 0.025 0.058 0.050

575 0.001 0.050 0.023 0.028 0.027 0.041 0.022 0.024 0.028 0.049 0.049

625 0.001 0.015 0.020 0.028 0.019 0.029 0.017 0.019 0.026 0.047 0.048

675 0.001 0.045 0.033 0.029 0.016 0.026 0.021 0.026 0.025 0.034 0.039

725 0.001 0.034 0.011 0.028 0.025 0.025 0.026 0.022 0.023 0.032 0.028

775 0.001 0.042 0.020 0.030 0.023 0.022 0.025 0.026 0.024 0.025 0.019

825 0.001 0.030 0.018 0.022 0.014 0.018 0.017 0.025 0.019 0.032 0.016

875 0.002 0.084 0.033 0.031 0.011 0.020 0.018 0.025 0.026 0.022 0.018

925 0.001 0.029 0.013 0.023 0.012 0.009 0.009 0.020 0.016 0.028 0.025

975 0.002 0.067 0.024 0.026 0.010 0.014 0.009 0.035 0.020 0.011 0.020

1025 0.001 0.022 0.011 0.031 0.006 0.012 0.022 0.015 0.023 0.019 0.014

1075 0.001 0.033 0.018 0.033 0.011 0.017 0.015 0.022 0.028 0.017 0.018

1125 0.001 0.028 0.014 0.022 0.007 0.015 0.009 0.017 0.017 0.019 0.013

1175 0.001 0.048 0.014 0.052 0.013 0.014 0.016 0.039 0.036 0.014 0.018

1225 0.001 0.031 0.010 0.028 0.008 0.007 0.010 0.026 0.021 0.020 0.016

1275 0.002 0.027 0.015 0.029 0.010 0.012 0.010 0.030 0.027 0.012 0.014

1325 0.001 0.027 0.008 0.018 0.007 0.010 0.011 0.025 0.018 0.017 0.010

1375 0.001 0.029 0.008 0.033 0.007 0.007 0.009 0.032 0.028 0.013 0.017

1425 0.001 0.029 0.010 0.024 0.006 0.011 0.008 0.020 0.025 0.014 0.016

1475 0.014 0.024 0.009 0.019 0.011 0.009 0.010 0.036 0.030 0.009 0.010

1525 0.002 0.026 0.006 0.022 0.009 0.008 0.009 0.031 0.027 0.011 0.012

1575 0.010 0.026 0.008 0.029 0.009 0.009 0.008 0.029 0.034 0.008 0.008

1625 0.003 0.027 0.006 0.027 0.005 0.009 0.007 0.015 0.020 0.013 0.012

1675 0.006 0.019 0.007 0.023 0.005 0.004 0.005 0.019 0.022 0.010 0.010

1725 0.001 0.024 0.009 0.025 0.006 0.014 0.008 0.021 0.016 0.015 0.016

1775 0.001 0.014 0.004 0.031 0.007 0.006 0.006 0.027 0.030 0.006 0.010

1825 0.002 0.025 0.006 0.028 0.007 0.007 0.007 0.018 0.026 0.008 0.011

1875 0.001 0.017 0.006 0.015 0.006 0.007 0.008 0.021 0.034 0.006 0.009

1925 0.003 0.030 0.006 0.037 0.006 0.007 0.007 0.019 0.022 0.013 0.010

1975 0.001 0.031 0.005 0.019 0.004 0.006 0.005 0.025 0.033 0.009 0.010

Report N. 2218 / 0234 - 3 Page 36 of 128

VDE-AR-N 4105:2011-08

Phase C

P (%Pn)

0 10 20 30 40 50 60 70 80 90 100


75 0.001 0.023 0.335 0.053 0.369 0.504 0.405 0.096 0.033 0.280 0.263

125 0.001 0.038 0.197 0.079 0.214 0.309 0.222 0.094 0.057 0.198 0.253

175 0.003 0.048 0.152 0.044 0.206 0.272 0.231 0.041 0.029 0.143 0.107

225 0.001 0.068 0.098 0.041 0.156 0.232 0.164 0.056 0.026 0.074 0.096

275 0.001 0.052 0.113 0.025 0.147 0.190 0.152 0.041 0.035 0.064 0.076

325 0.001 0.053 0.121 0.034 0.116 0.144 0.113 0.034 0.047 0.045 0.078

375 0.001 0.034 0.103 0.033 0.089 0.108 0.088 0.022 0.031 0.084 0.056

425 0.001 0.038 0.078 0.031 0.047 0.055 0.058 0.027 0.025 0.062 0.058

475 0.001 0.033 0.063 0.013 0.032 0.049 0.039 0.030 0.015 0.043 0.050

525 0.001 0.033 0.038 0.028 0.022 0.041 0.036 0.020 0.014 0.042 0.045

575 0.001 0.029 0.043 0.013 0.032 0.033 0.039 0.021 0.018 0.035 0.039

625 0.001 0.026 0.020 0.033 0.041 0.047 0.040 0.026 0.018 0.039 0.028

675 0.001 0.024 0.025 0.018 0.028 0.038 0.032 0.028 0.017 0.037 0.032

725 0.001 0.029 0.016 0.015 0.017 0.024 0.019 0.026 0.022 0.028 0.030

775 0.001 0.043 0.010 0.032 0.020 0.026 0.015 0.025 0.022 0.028 0.016

825 0.001 0.032 0.015 0.026 0.011 0.023 0.016 0.021 0.016 0.022 0.024

875 0.002 0.109 0.044 0.023 0.011 0.019 0.019 0.025 0.021 0.018 0.018

925 0.001 0.027 0.020 0.020 0.020 0.023 0.019 0.023 0.020 0.020 0.018

975 0.002 0.063 0.019 0.021 0.013 0.019 0.018 0.021 0.022 0.020 0.017

1025 0.001 0.020 0.021 0.027 0.015 0.022 0.019 0.015 0.017 0.019 0.027

1075 0.002 0.066 0.017 0.025 0.016 0.017 0.021 0.028 0.025 0.017 0.020

1125 0.001 0.022 0.013 0.021 0.009 0.012 0.012 0.015 0.015 0.017 0.018

1175 0.002 0.065 0.024 0.029 0.012 0.016 0.023 0.035 0.029 0.016 0.011

1225 0.001 0.036 0.008 0.024 0.008 0.013 0.008 0.022 0.019 0.017 0.012

1275 0.003 0.048 0.012 0.034 0.013 0.015 0.012 0.020 0.025 0.011 0.019

1325 0.002 0.026 0.012 0.013 0.008 0.013 0.013 0.023 0.019 0.013 0.008

1375 0.002 0.033 0.009 0.032 0.009 0.008 0.006 0.029 0.027 0.012 0.009

1425 0.001 0.029 0.012 0.025 0.007 0.010 0.007 0.021 0.017 0.013 0.016

1475 0.015 0.039 0.013 0.024 0.006 0.007 0.009 0.023 0.031 0.011 0.008

1525 0.003 0.027 0.007 0.019 0.005 0.011 0.010 0.024 0.022 0.012 0.012

1575 0.010 0.029 0.009 0.023 0.007 0.009 0.006 0.022 0.030 0.007 0.007

1625 0.003 0.023 0.009 0.029 0.004 0.011 0.011 0.015 0.018 0.012 0.011

1675 0.007 0.020 0.008 0.021 0.006 0.008 0.006 0.022 0.023 0.009 0.011

1725 0.002 0.030 0.007 0.042 0.006 0.009 0.006 0.028 0.017 0.016 0.009

1775 0.001 0.019 0.007 0.025 0.006 0.007 0.008 0.024 0.030 0.009 0.009

1825 0.002 0.022 0.006 0.036 0.004 0.010 0.007 0.017 0.026 0.011 0.006

1875 0.001 0.016 0.005 0.010 0.005 0.005 0.005 0.026 0.030 0.006 0.011

1925 0.004 0.022 0.008 0.033 0.004 0.008 0.008 0.020 0.020 0.011 0.012

1975 0.001 0.020 0.006 0.016 0.004 0.008 0.006 0.028 0.031 0.008 0.003

Report N. 2218 / 0234 - 3 Page 37 of 128

VDE-AR-N 4105:2011-08

Inter-Harmonics Current

Report N. 2218 / 0234 - 3 Page 38 of 128

VDE-AR-N 4105:2011-08

The results of higher frequency components measurements are represented in the tables and graphics below.

Phase A

P (%Pn) 0 10 20 30 40 50 60 70 80 90 100

f (kHz) Ih(%) Ih(%) Ih(%) Ih(%) Ih(%) Ih(%) Ih(%) Ih(%) Ih(%) Ih(%) Ih(%)

2.1 0.004 0.027 0.005 0.039 0.005 0.008 0.008 0.022 0.013 0.008 0.009

2.3 0.320 0.014 0.007 0.012 0.004 0.007 0.005 0.023 0.036 0.007 0.007

2.5 0.001 0.045 0.007 0.022 0.004 0.007 0.010 0.011 0.016 0.011 0.008

2.7 0.002 0.020 0.005 0.017 0.004 0.007 0.005 0.024 0.030 0.005 0.009

2.9 0.000 0.020 0.008 0.022 0.006 0.009 0.008 0.019 0.017 0.007 0.010

3.1 0.006 0.012 0.006 0.017 0.006 0.008 0.006 0.017 0.014 0.007 0.006

3.3 0.000 0.070 0.013 0.102 0.005 0.007 0.007 0.022 0.016 0.009 0.012

3.5 0.009 0.023 0.009 0.017 0.003 0.007 0.006 0.022 0.033 0.006 0.009

3.7 0.000 0.050 0.004 0.041 0.010 0.009 0.013 0.017 0.019 0.015 0.014

3.9 0.002 0.017 0.005 0.019 0.004 0.007 0.003 0.015 0.041 0.005 0.008

4.1 0.000 0.050 0.009 0.032 0.003 0.010 0.006 0.019 0.018 0.006 0.010

4.3 0.009 0.018 0.006 0.017 0.004 0.008 0.005 0.017 0.028 0.007 0.007

4.5 0.000 0.058 0.008 0.048 0.005 0.011 0.009 0.013 0.020 0.009 0.007

4.7 0.020 0.024 0.004 0.023 0.003 0.007 0.006 0.021 0.021 0.007 0.009

4.9 0.001 0.137 0.018 0.146 0.011 0.007 0.009 0.034 0.022 0.006 0.018

5.1 0.001 0.018 0.005 0.031 0.003 0.008 0.004 0.038 0.093 0.005 0.013

5.3 0.001 0.127 0.013 0.166 0.021 0.009 0.026 0.062 0.019 0.006 0.009

5.5 0.022 0.017 0.007 0.043 0.004 0.022 0.007 0.042 0.188 0.007 0.019

5.7 0.000 0.280 0.009 0.360 0.006 0.008 0.009 0.096 0.024 0.007 0.009

5.9 0.009 0.141 0.011 0.058 0.007 0.012 0.010 0.041 0.380 0.008 0.017

6.1 0.000 1.386 0.094 0.483 0.054 0.010 0.062 0.147 0.029 0.010 0.013

6.3 0.003 0.187 0.011 0.039 0.003 0.120 0.007 0.178 0.699 0.007 0.155

6.5 0.001 1.035 0.071 0.385 0.081 0.012 0.099 0.144 0.054 0.011 0.011

6.7 0.002 0.072 0.016 0.080 0.008 0.097 0.017 0.048 0.352 0.009 0.097

6.9 0.001 0.305 0.009 0.425 0.004 0.009 0.009 0.096 0.029 0.009 0.016

7.1 0.010 0.032 0.013 0.038 0.004 0.006 0.010 0.084 0.444 0.008 0.012

7.3 0.000 0.104 0.025 0.104 0.017 0.004 0.022 0.033 0.022 0.007 0.008

7.5 0.001 0.027 0.006 0.029 0.003 0.028 0.004 0.040 0.091 0.006 0.035

7.7 0.001 0.146 0.008 0.132 0.004 0.003 0.007 0.038 0.014 0.008 0.012

7.9 0.006 0.016 0.010 0.014 0.003 0.004 0.004 0.024 0.084 0.011 0.006

8.1 0.000 0.094 0.006 0.116 0.005 0.004 0.005 0.032 0.010 0.015 0.012

8.3 0.008 0.015 0.008 0.020 0.002 0.004 0.004 0.021 0.074 0.007 0.014

8.5 0.001 0.058 0.007 0.042 0.004 0.002 0.005 0.019 0.021 0.008 0.008

8.7 0.004 0.010 0.003 0.013 0.003 0.004 0.003 0.018 0.041 0.008 0.010

8.9 0.000 0.064 0.003 0.063 0.004 0.004 0.005 0.025 0.009 0.013 0.010

Report N. 2218 / 0234 - 3 Page 39 of 128

VDE-AR-N 4105:2011-08

Phase B

P (%Pn) 0 10 20 30 40 50 60 70 80 90 100


2.1 0.000 0.033 0.005 0.027 0.006 0.010 0.006 0.024 0.012 0.008 0.007

2.3 0.317 0.021 0.005 0.019 0.005 0.004 0.004 0.017 0.040 0.006 0.006

2.5 0.001 0.046 0.007 0.031 0.006 0.007 0.010 0.012 0.017 0.008 0.008

2.7 0.001 0.016 0.006 0.021 0.005 0.007 0.005 0.023 0.025 0.006 0.006

2.9 0.000 0.033 0.006 0.038 0.007 0.006 0.006 0.016 0.019 0.009 0.007

3.1 0.010 0.015 0.005 0.016 0.004 0.005 0.005 0.014 0.013 0.008 0.007

3.3 0.000 0.074 0.006 0.111 0.004 0.007 0.010 0.021 0.018 0.008 0.012

3.5 0.006 0.022 0.006 0.013 0.003 0.004 0.003 0.023 0.041 0.006 0.009

3.7 0.000 0.061 0.005 0.025 0.005 0.009 0.010 0.020 0.017 0.014 0.013

3.9 0.003 0.021 0.003 0.018 0.005 0.009 0.005 0.015 0.055 0.005 0.006

4.1 0.000 0.052 0.010 0.022 0.004 0.004 0.006 0.018 0.016 0.007 0.006

4.3 0.007 0.009 0.004 0.022 0.002 0.006 0.004 0.014 0.032 0.006 0.010

4.5 0.000 0.061 0.011 0.064 0.006 0.004 0.006 0.012 0.020 0.008 0.010

4.7 0.014 0.018 0.004 0.021 0.002 0.005 0.005 0.018 0.023 0.005 0.007

4.9 0.001 0.129 0.015 0.128 0.009 0.008 0.009 0.033 0.019 0.006 0.015

5.1 0.002 0.048 0.004 0.029 0.004 0.013 0.006 0.031 0.106 0.004 0.008

5.3 0.001 0.163 0.015 0.166 0.010 0.006 0.014 0.031 0.022 0.008 0.009

5.5 0.020 0.033 0.003 0.020 0.004 0.030 0.004 0.056 0.163 0.007 0.034

5.7 0.000 0.313 0.016 0.379 0.007 0.009 0.008 0.090 0.019 0.009 0.011

5.9 0.013 0.152 0.012 0.067 0.005 0.010 0.006 0.041 0.331 0.006 0.011

6.1 0.000 1.225 0.058 0.262 0.035 0.016 0.049 0.118 0.040 0.011 0.012

6.3 0.004 0.076 0.006 0.028 0.004 0.120 0.015 0.087 0.628 0.007 0.075

6.5 0.000 0.514 0.052 0.345 0.045 0.010 0.050 0.109 0.023 0.012 0.017

6.7 0.007 0.071 0.015 0.052 0.005 0.120 0.009 0.106 0.220 0.011 0.151

6.9 0.001 0.289 0.008 0.420 0.006 0.009 0.006 0.099 0.040 0.012 0.020

7.1 0.006 0.035 0.012 0.040 0.002 0.010 0.010 0.078 0.395 0.009 0.020

7.3 0.001 0.078 0.011 0.068 0.005 0.007 0.012 0.055 0.023 0.010 0.010

7.5 0.004 0.015 0.002 0.031 0.002 0.030 0.004 0.026 0.116 0.010 0.019

7.7 0.001 0.104 0.009 0.194 0.003 0.002 0.005 0.042 0.014 0.013 0.008

7.9 0.008 0.018 0.009 0.021 0.002 0.008 0.004 0.036 0.107 0.012 0.007

8.1 0.000 0.101 0.007 0.095 0.006 0.003 0.006 0.029 0.011 0.012 0.011

8.3 0.005 0.028 0.008 0.023 0.003 0.006 0.003 0.017 0.064 0.007 0.009

8.5 0.001 0.047 0.006 0.030 0.003 0.003 0.005 0.016 0.023 0.010 0.013

8.7 0.003 0.020 0.003 0.014 0.002 0.006 0.004 0.015 0.046 0.007 0.012

8.9 0.000 0.028 0.005 0.074 0.003 0.002 0.004 0.027 0.011 0.011 0.011

Report N. 2218 / 0234 - 3 Page 40 of 128

VDE-AR-N 4105:2011-08

Phase C

P (%Pn) 0 10 20 30 40 50 60 70 80 90 100


2.1 0.006 0.024 0.005 0.040 0.006 0.008 0.006 0.023 0.009 0.006 0.006

2.3 0.319 0.020 0.008 0.015 0.005 0.005 0.006 0.027 0.037 0.006 0.005

2.5 0.001 0.037 0.003 0.024 0.004 0.004 0.006 0.013 0.015 0.009 0.008

2.7 0.002 0.014 0.004 0.019 0.004 0.005 0.003 0.026 0.035 0.004 0.007

2.9 0.000 0.033 0.008 0.025 0.005 0.008 0.008 0.021 0.019 0.009 0.009

3.1 0.009 0.013 0.005 0.017 0.003 0.006 0.005 0.017 0.014 0.006 0.006

3.3 0.000 0.067 0.010 0.100 0.004 0.011 0.010 0.026 0.017 0.006 0.006

3.5 0.007 0.020 0.009 0.018 0.004 0.006 0.005 0.021 0.033 0.006 0.005

3.7 0.000 0.022 0.004 0.040 0.006 0.009 0.009 0.019 0.018 0.013 0.012

3.9 0.002 0.020 0.006 0.021 0.005 0.005 0.004 0.027 0.051 0.003 0.009

4.1 0.000 0.026 0.010 0.022 0.005 0.008 0.007 0.020 0.014 0.008 0.008

4.3 0.008 0.020 0.006 0.015 0.003 0.008 0.005 0.025 0.020 0.006 0.005

4.5 0.001 0.063 0.005 0.050 0.007 0.010 0.011 0.020 0.017 0.006 0.010

4.7 0.024 0.015 0.004 0.024 0.004 0.007 0.005 0.034 0.025 0.007 0.004

4.9 0.000 0.119 0.010 0.172 0.008 0.009 0.009 0.046 0.020 0.007 0.011

5.1 0.002 0.021 0.004 0.032 0.004 0.008 0.004 0.052 0.100 0.004 0.010

5.3 0.001 0.125 0.019 0.090 0.014 0.006 0.020 0.063 0.020 0.007 0.006

5.5 0.026 0.038 0.008 0.033 0.005 0.031 0.005 0.041 0.126 0.005 0.032

5.7 0.000 0.292 0.013 0.344 0.007 0.011 0.011 0.114 0.028 0.007 0.006

5.9 0.005 0.040 0.011 0.070 0.006 0.010 0.006 0.052 0.369 0.006 0.018

6.1 0.000 0.249 0.058 0.655 0.083 0.014 0.098 0.259 0.052 0.012 0.014

6.3 0.007 0.033 0.008 0.075 0.004 0.086 0.012 0.207 0.931 0.008 0.158

6.5 0.001 0.442 0.090 0.520 0.040 0.009 0.059 0.120 0.060 0.010 0.013

6.7 0.006 0.052 0.022 0.079 0.007 0.126 0.012 0.110 0.480 0.008 0.127

6.9 0.001 0.280 0.014 0.443 0.006 0.011 0.009 0.097 0.047 0.008 0.012

7.1 0.012 0.027 0.017 0.041 0.004 0.009 0.009 0.091 0.438 0.008 0.018

7.3 0.000 0.109 0.022 0.075 0.020 0.005 0.025 0.035 0.018 0.009 0.008

7.5 0.004 0.029 0.006 0.026 0.002 0.022 0.006 0.051 0.036 0.005 0.039

7.7 0.001 0.140 0.012 0.133 0.005 0.002 0.007 0.053 0.016 0.011 0.013

7.9 0.007 0.012 0.014 0.018 0.002 0.007 0.003 0.032 0.087 0.008 0.007

8.1 0.001 0.075 0.007 0.106 0.003 0.006 0.006 0.036 0.013 0.019 0.009

8.3 0.007 0.012 0.008 0.020 0.002 0.003 0.003 0.025 0.071 0.009 0.012

8.5 0.000 0.024 0.008 0.051 0.003 0.002 0.004 0.016 0.023 0.010 0.011

8.7 0.002 0.006 0.002 0.014 0.003 0.004 0.003 0.021 0.041 0.011 0.013

8.9 0.001 0.043 0.004 0.064 0.002 0.003 0.003 0.030 0.012 0.014 0.013

Report N. 2218 / 0234 - 3 Page 41 of 128

VDE-AR-N 4105:2011-08

Current high frequency harmonics

Report N. 2218 / 0234 - 3 Page 42 of 128

VDE-AR-N 4105:2011-08

4.4 VOLTAGE UNBALANCE This point has to be performed according to the paragraph 5.4.5 of the VDE-AR-N 4105:2011-08. In this case is not applicable due to it is not several single-phase power generation systems are connected to the same network connection point, then uniform distribution of the power supplied to the three line conductors. 4.5 COMMUTATION NOTCHES

The commutation notches test has been measured according to the paragraph 5.4.6 of theVDE-AR-N

4105:2011-08. The VDE-AR-N 4105:2011-08 standard requires a maximum relative depth of

commutation notches, dkom, of 5 %.

By the next picture it is obtained that the inverter start connects to PCC.

Commutation notches test

Report N. 2218 / 0234 - 3 Page 43 of 128

VDE-AR-N 4105:2011-08

Commutation notches test_Zoom in Phase A

Commutation notches test_Zoom in Phase B

Report N. 2218 / 0234 - 3 Page 44 of 128

VDE-AR-N 4105:2011-08

Commutation notches test_Zoom in Phase C

For this frequency of commutation, it is measured that the product has a relative depth of commutation

of 3.78%.

Report N. 2218 / 0234 - 3 Page 45 of 128

VDE-AR-N 4105:2011-08

4.6 PRECAUTIONARY MEASURES AGAINST VOLTAGES DROP AND INTERRUPTIONS

The inverter presents a variety of protection systems against faults or interruptions of supply according to the VDE-AR-N 4105:2011-08 requires.

4.7 THREE-PHASE NETWORK

This test has been performed according to the paragraph 5.6.3 of the standard. In the graph below are offered the results of the test carried out for verifying the standard requirements.

Test results

Voltage

Phase Nº Angle of Deviation (º) Magnitude Deviation (%)

1-2 -0.3 -0.25

1-3 -0.4 -0.33

2-3 0.1 0.08

Report N. 2218 / 0234 - 3 Page 46 of 128

VDE-AR-N 4105:2011-08

4.8 MAXIMUM PERMISSIBLE SHORT-CIRCUIT CURRENT The test has been measured according to the paragraph 5.7.2 of VDE-AR-N 4105:2011-08. The inverter disconnects at 176.8A. As it can be seen in the next screenshot:

Short-circuit Test(L-L)

4.9 ACTIVE POWER OUTPUT

The test has been measured according to the paragraph 5.7.3 of VDE-AR-N 4105:2011-08 and the paragraph 5.3 of VDE V 0124-100:2012-07 4.9.1 Measurement of the active and reactive power range

These tests serve to provide evidence of the adjustable reactive power range in compliance with the paragraph 5.7.3 of VDE-AR-N 4105:2011-08 and the paragraph 5.3.2 of VDE V 0124-100:2012-07. As well as determination of the values for SEmax and PEmax

All tests must be carried out at the respective stated voltages. If test bench measurements are not possible, a technically underpinned declaration of the manufacturer must be submitted.

The PGU is run at all of the following possible operating points, whereby each of the operating points must be maintained for at least 60 seconds after the transient period. During the following partial measurements a) to c), the primary energy source should not have a power limiting effect. Measurements a) to c) must be made at Un and 1.09 Un.

a) At cos 1 the maximum possible active power is set at this operating point.

Report N. 2218 / 0234 - 3 Page 47 of 128

VDE-AR-N 4105:2011-08

b) At the maximum under-excited operation, the maximum active power possible at this operating point is set.

c) At the maximum over-excited operation, the maximum active power possible at this operating point is set.

SEmax600 and PEmax600 are determined by the maximum measured value:

SEmax600 max (SEmax600 a), SEmax600 b), SEmax600 c))

PEmax600 max (PEmax600 a), PEmax600 b), PEmax600 c))

Optional measurements: The following operating points must be maintained for at least 60 seconds after the transient period:

d) At the maximum under-excited operation the active power is set to 20 % PEmax600 to 30 % PEmax600.

e) At the maximum over-excited operation the active power is set to 20 % PEmax600 to 30 % PEmax600.

NOTE The points d) and e) serve to show the PGU properties. Both measurements are optional, as they are not required by VDE-AR-N 4105.

The results are offered in the table below.

Setting U=1.0 Un

Step Voltage

(per unit) P

(per unit) Q

(per unit) S

(per unit) Measured

cos φ Desired cos φ

Δ cos φ (<0,01)

a) 1.000 1.002 0.040 1.003 0.999 1.000 -0.001

b) 1.000 0.998 0.493 1.113 0.896 0.900 -0.004

c) 1.000 0.997 -0.473 1.104 0.903 0.900 0.003

d) 1.000 0.248 0.122 0.276 0.897 0.900 -0.003

e) 1.000 0.247 -0.117 0.273 0.904 0.900 0.004

Measured each step(a,b,c) 600 s: SEmax600 a) = 1.003Sn = 60180VA PEmax600 a) = 1.002Pn = 60120W SEmax600 b) = 1.113Sn = 66780VA PEmax600 b) = 0.998Pn = 59880W SEmax600 c) = 1.104Sn = 66240VA PEmax600 c) = 0.997Pn = 59820W

Setting U=1.09 Un

Step Voltage

(per unit) P (per unit)

Q (per unit)

S (per unit)

Measured cos φ

Desired cos φ

Δ cos φ (<0,01)

a) 1.091 1.004 -0.106 1.005 0.999 1.000 -0.001

b) 1.091 1.001 0.497 1.117 0.895 0.900 -0.005

c) 1.091 1.000 -0.474 1.107 0.904 0.900 0.004

Measured each step(a,b,c) 600 s: SEmax600 a) = 1.005Sn = 60300VA PEmax600 a) = 1.001Pn = 60060W SEmax600 b) = 1.118Sn = 67080VA PEmax600 b) = 1.001Pn = 60060W SEmax600 c) = 1.107Sn = 66420VA PEmax600 c) = 1.000Pn = 60000W

According to the test:

SEmax600 max (SEmax600 a), SEmax600 b), SEmax600 c)) = 1.118Sn = 67080VA

PEmax600 max (PEmax600 a), PEmax600 b), PEmax600 c)) = 1.002Pn = 60120W

Report N. 2218 / 0234 - 3 Page 48 of 128

VDE-AR-N 4105:2011-08

In the picture below are offered graphically the results of the test.

Characteristic curve cos ɸ = F(P) (Setting U=1.0 Un)

Characteristic curve cos ɸ = F(P) (Setting U=1.09 Un)

Report N. 2218 / 0234 - 3 Page 49 of 128

VDE-AR-N 4105:2011-08

4.9.2 Lowering the active power by a defined set value The test has been measured according to the paragraph 5.7.3 of VDE-AR-N 4105:2011-08 and the paragraph 5.3.3 of VDE V 0124-100:2012-07

For this test the set value signal is lowered from 100 % PEmax to 10 % PEmaxas follows:

Setpoint in power bin

Psetpoint [p.u.] Pmeasured [p.u.] Δ P (<±0.05Pn)

100% 1.000 1.001 0.001

90% 0.900 0.901 0.001

80% 0.800 0.801 0.001

70% 0.700 0.701 0.001

60% 0.600 0.600 0.000

50% 0.500 0.500 0.000

40% 0.400 0.399 -0.001

30% 0.300 0.298 -0.002

20% 0.200 0.197 -0.003

10% 0.100 0.095 -0.005

100% 1.000 1.001 0.001

Lowered from 100 % PEmax to 10 % PEmax

Report N. 2218 / 0234 - 3 Page 50 of 128

VDE-AR-N 4105:2011-08

The setting time is measured by changing the set value from 100 % to 30 % of the nominal active power PEmax at the time t0. The setting time of the PGU must be determined during this test.

Setting time = t1-t0= 0.5s

Lowered from 100 % PEmax to 30 % PEmax

Report N. 2218 / 0234 - 3 Page 51 of 128

VDE-AR-N 4105:2011-08

4.9.3 Active power feed-in at overfrequency

The test has been measured according to the paragraph 5.7.3.3 of VDE-AR-N 4105:2011-08 and the paragraph 5.3.4 of VDE V 0124-100:2012-07. This test has been divided in three different parts:

1. At frequencies between 50,2 Hz and 51,5 Hz, the inverter shall reduce (for frequency increase) or increase (for frequency decrease, the active power PM generated instantaneously (at the time of exceeding the mains frequency 50,2 Hz) with a gradient of 40% of PM per Herzt.

2. If the mains frequency drops again to a value below 50.2 Hz and if the possible generation power is greater at that instant than the active power PM, then the increase of the active power supplied to the network operator’s network shall not exceed a gradient of 10% of the maximum active power PN per minute.

3. At mains frequencies >51.5 Hz, the power generation system shall disconnect from the network immediately.

The results of the tests performed are offered in the table below:

Part 1 PM = 100% Pn

Step ff-iFrequency

setting

Variation expected

Active power change desired

(p.u.)

Active power change

measured (p.u.)

Variation measured

a) 50.00 Hz 0.01 Hz No power variation 1.000 to 1.000 1.003 to 1.003 No power variation

b) 50.25 Hz 0.05 Hz -2% PM 1.000 to 0.980 1.003 to 0.986 -1.7% PM

c) 50.70 Hz 0.10 Hz -20% PM 0.980 to 0.800 0.986 to 0.807 -19.6% PM

d) 51.15 Hz 0.05 Hz -38% PM 0.800 to 0.620 0.807 to 0.627 -37.6% PM

e) 50.70 Hz 0.10 Hz -20% PM 0.620 to 0.800 0.627 to 0.807 -19.6% PM

f) 50.25 Hz 0.05 Hz -2% PM 0.800 to 0.980 0.807 to 0.987 -1.7% PM

g) 50.00 Hz 0.01 Hz No power variation 0.980 to 1.000 0.987 to 1.003 No power variation

h) 51.65 Hz 0.05 Hz Disconnection confirm (Yes or No) Yes

i) 50.10 Hz 0.01 Hz Reconnected confirm (Yes or No) No

j) 50.00 Hz 0.01 Hz Power gradient

limited <10%Pn/min

Power gradient measured

7.98%Pn/min

Report N. 2218 / 0234 - 3 Page 52 of 128

VDE-AR-N 4105:2011-08

Part 2 PM = 50% Pn

Step ff-iFrequency

setting

Variation expected


(p.u.)

Active power change

measured (p.u.)

Variation measured

a) 50.00 Hz 0.01 Hz No power variation 0.500 to 0.500 0.502 to 0.502 No power variation

b) 50.25 Hz 0.05 Hz -2% PM 0.500 to 0.490 0.502 to 0.494 -1.6% PM

c) 50.70 Hz 0.10 Hz -20% PM 0.460 to 0.400 0.494 to 0.404 -19.6% PM

d) 51.15 Hz 0.05 Hz -38% PM 0.400 to 0.310 0.404 to 0.313 -37.8% PM

e) 50.70 Hz 0.10 Hz -20% PM 0.310 to 0.400 0.313 to 0.404 -19.6 % PM

f) 50.25 Hz 0.05 Hz -2% PM 0.400 to 0.490 0.404 to 0.493 -1.8% PM

g) 50.00 Hz 0.01 Hz No power variation 0.490 to 0.500 0.493 to 0.502 No power variation

h) 51.65 Hz 0.05 Hz Disconnection confirm (Yes or No) Yes

i) 50.10 Hz 0.01 Hz Reconnected confirm (Yes or No) No

j) 50.00 Hz 0.01 Hz Power gradient

limited <10%Pn/min

Power gradient measured

8.84%Pn/min

In the graph below are represented the results of the test performed for verifying this point of the standard.

Active power feed-in at overfrequency(PM = 100% Pn)

Report N. 2218 / 0234 - 3 Page 53 of 128

VDE-AR-N 4105:2011-08

Active power feed-in at overfrequency(PM = 50% Pn)

Report N. 2218 / 0234 - 3 Page 54 of 128

VDE-AR-N 4105:2011-08

4.9.4 Active power feed-in at underfrequency The test has been measured according to the paragraph 5.7.3.4 of VDE-AR-N 4105:2011-08 and the paragraph 5.3.5 of VDE V 0124-100:2012-07. For frequencies between 47.5 Hz and 50.0 Hz, automatic disconnection from the network as a result of a frequency deviation is not permitted.

The results of the tests performed are offered in the table below:

PM =100% Pn

Step ff-iFrequency

setting

Variation expected


(p.u.)

Active power change

measured (p.u.)

Variation measured

a) 50.00 Hz No power variation 1.000 to 1.000 1.003 to 1.003 No power variation

b) 47.55 Hz No power variation 1.000 to 1.000 1.003 to 1.003 No power variation

The test performed for verifying that the inverter does not disconnect while working among this range can be seen in the following graph.

Active power feed-in at underfrequency

Report N. 2218 / 0234 - 3 Page 55 of 128

VDE-AR-N 4105:2011-08

4.10 REACTIVE POWER

These tests have been measured according to the paragraph 5.7.5 of VDE-AR-N 4105:2011-08 and the paragraph 5.3.6 of VDE V 0124-100:2012-07. Depending of the maximum apparent power of the inverter, SE Max, there are the following requirements:

For generation systems with 3.68 kVA < SE Max < 13.8 kVA: Characteristic curve provided with cos ϕ = 0.95under-excited to 0.95over-excited according to the figure.

For generation systems with SE Max > 13.8 kVA: Characteristic curve provided with cos ϕ = 0.90under-excited to 0.90over-excited according to the figure.

In this case it has been tested according to the requirements of the first. But the characteristic curve provided with cos ϕ = 0.90under-excited to 0.90 over-excited according to the figure. The tests performed are offered in the following points.

Report N. 2218 / 0234 - 3 Page 56 of 128

VDE-AR-N 4105:2011-08

4.10.1 Tests of the cos setting accuracy

In addition to the requirements of the point 5.7.5 of VDE-AR-N 4105: 2011-08 and the paragraph 5.3.6.1 of VDE V 0124-100:2012-07, this test has to take into account the specification of the point 9.2.2. This paragraph declares that the maximum deviation allowed for cos ɸ is 0.01.

The PGU is run at all of the following possible operating points, whereby a data set with 30 second mean values must be recorded for each operating point after the transient period of the active power. During the following partial measurements a) to c), the primary energy source should not have a power limiting effect. Measurements a) to c) should be carried out at 0.91 Un, Un und 1.09 Un, measurements

should, however, at least be carried out at Un and 1.09 Un.

For each of the measurements at different voltages another value between 40 % PEmax

and 60 % PEmax

must be run up to.

1. The following applies for PGUs of 3.68 kVA that cannot be used in PGS of 3.68:

a) Without specification of the cos , measurement is made at an active power value of between 40 % P

Emax and 60 % P

Emax and at S

Emax.

2. The following applies for PGUs 3.68 kVA and 13.8 kVA, that cannot be used in PGS 13.8 kVA

as well as for PGUs 3.68 kVA, that can also be used in PGS 13.8 kVA:

b) At cos 0,95 over-excited, measurement is made at an active power value between 40 % PEmax

and 60 % PEmax

and at SEmax.

c) At cos 0.95 under-excited, measurement is made at an active power value between 40 % PEmax

and 60 % PEmax

and at SEmax

.

3. The following applies for PGUs 13.8 kVA as well as for PGUs 13.8 kVA, that can also be used in PGS > 13.8 kVA:

d) At cos 0.9 over-excited measurement is made at an active power value between 40 % PEmax

and 60 % PEmax

and at SEmax.

e) At cos 0.9 under-excited, measurement is made at an active power value between 40 % PEmax

and 60 % PEmax

and at SEmax

.

In this case it has been tested according to the requirements of the secondary. But the characteristic curve provided with cos ϕ = 0,90under-excited to 0,90over-excited according to the figure. Measurements d) to e) carried out at 0.91 Un, Un und 1.09 Un

The results are offered in the table below.

Setting U=Un

Step Voltage

(per unit) P

(per unit) Q

(per unit)

SEmax

(per unit)

Measured cos φ

Desired cos φ

Δ cos φ (<0,01)

a) -- -- -- -- -- -- --

b) -- -- -- -- -- -- --

c) -- -- -- -- -- -- --

d) 1.000 0.502 -0.236 0.554 0.905 0.900 0.005

e) 1.000 0.502 0.245 0.558 0.899 0.900 -0.002

Report N. 2218 / 0234 - 3 Page 57 of 128

VDE-AR-N 4105:2011-08

Setting U=0.91Un

Step Voltage

(per unit) P

(per unit) Q

(per unit)

SEmax

(per unit)

Measured cos φ

Desired cos φ

Δ cos φ (<0,01)

a) -- -- -- -- -- -- --

b) -- -- -- -- -- -- --

c) -- -- -- -- -- -- --

d) 0.910 0.500 -0.238 0.554 0.903 0.900 0.003

e) 0.911 0.500 0.238 0.554 0.903 0.900 0.003

Setting U=1.09Un

Step Voltage

(per unit) P

(per unit) Q

(per unit)

SEmax

(per unit)

Measured cos φ

Desired cos φ

Δ cos φ (<0,01)

a) -- -- -- -- -- -- --

b) -- -- -- -- -- -- --

c) -- -- -- -- -- -- --

d) 1.089 0.501 -0.236 0.554 0.905 0.900 0.005

e) 1.090 0.502 0.242 0.558 0.901 0.900 0.001


Characteristic curve cos setting at U=Un

Report N. 2218 / 0234 - 3 Page 58 of 128

VDE-AR-N 4105:2011-08

Characteristic curve cos setting at U=0.91Un

Characteristic curve cos setting at U=1.09Un

Report N. 2218 / 0234 - 3 Page 59 of 128

VDE-AR-N 4105:2011-08

4.10.2 Test for a displacement factor/active power characteristic curve cos (P)

In addition to the requirements of the point 5.7.5 of VDE-AR-N 4105:2011-08 and the paragraph 5.3.6.4 of VDE V 0124-100:2012-07, this test has to take into account the specification of the point 9.2.3. The results of the test performed are offered in the table below.

The change in the reactive power must be checked in accordance with the active power feed-in. To this purpose the active power range must be run through three times from 20 % PEmax to the maximum active power feed-in and vice versa.

a) The active power range is run through once in steps of 10 % PEmax to verify the degree of the displacement factor.

b) The active power range is run through twice to verify the degree of the displacement factor and to verify the transient period in the steps 20 % PEmax, 50 % PEmax, 90 % PEmax.

The results are offered in the table below (Note: 10%Pn have not measured in following test):

Setting cos 0.9 over-excited (in steps of 10 % PEmax)

Active Power Setting

(% PEmax)

Active Power

Measured (p.u.)

Reactive Power

Measured (p.u.)

cos Measured

Desired cos φ

Δ cos φ (<0,01)

Transient period (<10s)

20 0.199 -0.095 0.903 0.900 0.003

30 0.300 -0.140 0.907 0.900 0.007 0.2s

40 0.401 -0.190 0.903 0.900 0.003 0.2s

50 0.502 -0.232 0.908 0.900 0.008 0.2s

60 0.602 -0.278 0.908 0.900 0.008 0.2s

70 0.702 -0.331 0.904 0.900 0.004 0.2s

80 0.802 -0.377 0.905 0.900 0.005 0.2s

90 0.901 -0.419 0.907 0.900 0.007 0.2s

100 1.001 -0.466 0.906 0.900 0.006 0.2s

Setting cos 0.9 under-excited(in steps of 10 % PEmax)


(% PEmax)

Active Power

Measured (p.u.)

Reactive Power

Measured (p.u.)

cos Measured

Desired cos φ

Δ cos φ (<0,01)


20 0.199 0.097 0.899 0.900 -0.001

30 0.300 0.151 0.894 0.900 -0.006 0.2s

40 0.402 0.197 0.897 0.900 -0.003 0.2s

50 0.502 0.240 0.902 0.900 0.002 0.2s

60 0.602 0.291 0.900 0.900 0.000 0.2s

70 0.702 0.325 0.908 0.900 0.008 0.2s

80 0.803 0.374 0.907 0.900 0.007 0.2s

90 0.901 0.421 0.906 0.900 0.006 0.2s

100 1.001 0.466 0.907 0.900 0.007 0.2s

Report N. 2218 / 0234 - 3 Page 60 of 128

VDE-AR-N 4105:2011-08

Setting cos 1(in steps of 10 % PEmax)


(% PEmax)

Active Power

Measured (p.u.)

Reactive Power

Measured (p.u.)

cos Measured

Desired cos φ

Δ cos φ (<0,01)


20 0.199 0.021 0.995 1.000 -0.005

30 0.301 0.024 0.997 1.000 -0.003 0.2s

40 0.402 0.022 0.999 1.000 -0.001 0.1s

50 0.503 0.025 0.999 1.000 -0.001 0.2s

60 0.603 0.024 0.999 1.000 -0.001 0.2s

70 0.704 0.027 0.999 1.000 -0.001 0.2s

80 0.804 0.027 0.999 1.000 -0.001 0.2s

90 0.904 0.022 1.000 1.000 0.000 0.2s

100 1.003 0.029 1.000 1.000 0.000 0.2s

Setting cos 0.9 over-excited (in the steps 20 % PEmax, 50 % PEmax, 90 % PEmax.)


(% PEmax)

Active Power

Measured (p.u.)

Reactive Power

Measured (p.u.)

cos Measured

Desired cos φ

Δ cos φ (<0,01)


20 0.199 -0.095 0.903 0.900 0.003

50 0.502 -0.236 0.905 0.900 0.005 0.2s

90 0.902 -0.429 0.903 0.900 0.003 0.2s

20 0.199 -0.094 0.904 0.900 0.004 0.2s

50 0.502 -0.236 0.905 0.900 0.005 0.2s

90 0.900 -0.428 0.903 0.900 0.003 0.2s

Setting cos 0.9 under-excited (in the steps 20 % PEmax, 50 % PEmax, 90 % PEmax.)


(% PEmax)

Active Power

Measured (p.u.)

Reactive Power

Measured (p.u.)

cos Measured

Desired cos φ

Δ cos φ (<0,01)


20 0.199 0.097 0.899 0.900 -0.001

50 0.502 0.244 0.899 0.900 -0.001 0.2

90 0.902 0.418 0.907 0.900 0.007 0.2

20 0.199 0.097 0.899 0.900 -0.001 4.1

50 0.502 0.240 0.902 0.900 0.002 2.7

90 0.901 0.421 0.906 0.900 0.006 0.3

Setting cos 1 (in the steps 20 % PEmax, 50 % PEmax, 90 % PEmax.)


(% PEmax)

Active Power

Measured (p.u.)

Reactive Power

Measured (p.u.)

cos Measured

Desired cos φ

Δ cos φ (<0,01)


20 0.199 0.021 0.995 1.000 -0.005

50 0.503 0.022 0.999 1.000 -0.001 0.3s

90 0.904 0.020 1.000 1.000 0.000 0.3s

20 0.199 0.023 0.993 1.000 -0.007 0.3s

50 0.502 0.026 0.999 1.000 -0.001 0.3s

90 0.904 0.026 1.000 1.000 0.000 0.3s

Report N. 2218 / 0234 - 3 Page 61 of 128

VDE-AR-N 4105:2011-08

It has also to be verified the capability of the inverter for providing a fixed value of the power factor (depending on SE Max) in function of the active power according to the next picture:

The results are offered in the table below (Note: 10%Pn have not measured in following test):

Setting cos (P) with the standard characteristic curve (20%Pn to 100%Pn)


(% PEmax)

Active Power

Measured (p.u.)

Reactive Power

Measured (p.u.)

cos Measured

Desired cos φ

Δ cos φ (<0,01)


20 0.199 0.020 0.995 1.000 -0.005

30 0.301 0.023 0.997 1.000 -0.003 0.2s

40 0.402 0.024 0.998 1.000 -0.002 0.2s

50 0.503 0.031 0.998 1.000 -0.002 0.2s

60 0.603 0.131 0.977 0.980 0.003 0.2s

70 0.703 0.219 0.955 0.960 -0.005 0.2s

80 0.803 0.312 0.932 0.940 -0.008 0.2s

90 0.902 0.406 0.912 0.920 0.008 0.2s

100 1.001 0.499 0.895 0.900 -0.005 0.2s

Report N. 2218 / 0234 - 3 Page 62 of 128

VDE-AR-N 4105:2011-08


Characteristic curve cos (P) (Setting cos 0.9 over-excited)(in steps of 10 % PEmax)

Characteristic curve cos (P) (Setting cos 0.9 under-excited)(in steps of 10 % PEmax)

Report N. 2218 / 0234 - 3 Page 63 of 128

VDE-AR-N 4105:2011-08

Characteristic curve cos (P) (Setting cos 1)(in steps of 10 % PEmax)

Characteristic curve cos (P) (Setting cos 0.9 over-excited) (in the steps 20 % PEmax, 50 % PEmax, 90 % PEmax.)

Report N. 2218 / 0234 - 3 Page 64 of 128

VDE-AR-N 4105:2011-08

Characteristic curve cos (P) (Setting cos 0.9 under-excited) (in the steps 20 % PEmax, 50 % PEmax, 90 % PEmax.)

Characteristic curve cos (P) (Setting cos 1) (in the steps 20 % PEmax, 50 % PEmax, 90 % PEmax.)

Report N. 2218 / 0234 - 3 Page 65 of 128

VDE-AR-N 4105:2011-08

Setting cos (P) with standard characteristic curve(20%Pn to 100%Pn)

Report N. 2218 / 0234 - 3 Page 66 of 128

VDE-AR-N 4105:2011-08

4.11 INTERFACE SWITCH

It is use an integrated interface switch for the connection of the equipment to the network operator’s low-voltage network. The integrated interface switch consists of two relay connected in series. The interface switch is controlled by the NS protection and activates automatically if at least one protective function responds. 4.11.1 Functional safety

Testing of the single-fault tolerance and fault detection with subsequent disconnection is carried out by fault simulation, if necessary with additional fault tests.

It must be checked that a single fault does not lead to loss of the safety function.

The results are offered in the table below:

Component

No.

Fault Supply voltage

(V)

Test

time

Observation

K1 S/C Input: 640 Vdc;

Output: 230 Vac 5s

EUT cannot connect to the grid. Error

message: “Relay fault”. No output. No

damage. No hazard.


Output: 230 Vac 5s



damage. No hazard.


Output: 230 Vac 5s



damage. No hazard.

Note: S/C means Short Circuit.

Report N. 2218 / 0234 - 3 Page 67 of 128

VDE-AR-N 4105:2011-08

4.11.2 Voltage protection functions These tests have been performed according to the points 6.5.1 and 6.5.2 of VDE-AR-N 4105:2011-08 and the paragraph 5.4.5.3 of VDE V 0124-100:2012-07

a) For measurement of the phase to phase voltages the phase angle must be turned so that one phase to phase voltage reaches the limit value, whereby the phase to neutral voltages for testing the overvoltage are set to 110 % Un and for undervoltage to 90 % Un.

b) For the measurement of the phase to neutral voltage, one phase to neutral voltage should be changed, whereby both other phase to neutral voltages are maintained at the nominal voltage. This test must be carried out separately for each phase.

To measure the response time, a voltage changes of:

– Nominal voltage to 118 % Un for overvoltage and – Nominal voltage to 77 % Un for undervoltage

is carried out.

All tests for verification of the disconnection values and times must be carried out three times.

The results are offered in the table below:

Disconnection time measured

Protective function

Voltage changes

Disconnection time limits

Test 1 (ms) Test 2 (ms) Test 3 (ms)

Rise-in-voltage protection (U>>)

100% Un to 118% Un

< 200 ms 146 146 157

Voltage drop protection (U<)

100% Un to 77% Un

< 200 ms 154 157 156

Report N. 2218 / 0234 - 3 Page 68 of 128

VDE-AR-N 4105:2011-08

In the picture below are offered waveforms and graphically the results of the test.

Nominal voltage to 118 % Un for overvoltage - Test 1

CH1: Voltage_Phase A, CH2: Voltage_Phase B, CH3: Voltage_Phase C, CH4: Output current

Report N. 2218 / 0234 - 3 Page 69 of 128

VDE-AR-N 4105:2011-08



Report N. 2218 / 0234 - 3 Page 70 of 128

VDE-AR-N 4105:2011-08



Report N. 2218 / 0234 - 3 Page 71 of 128

VDE-AR-N 4105:2011-08

Nominal voltage to 77 % Un for undervoltage - Test 1


Report N. 2218 / 0234 - 3 Page 72 of 128

VDE-AR-N 4105:2011-08



Report N. 2218 / 0234 - 3 Page 73 of 128

VDE-AR-N 4105:2011-08



Report N. 2218 / 0234 - 3 Page 74 of 128

VDE-AR-N 4105:2011-08

The rise-in voltage protection U test is carried out as follows: a) The voltage is set to 100 % Un and maintained for 600 s. The voltage is then set to 112 % Un.

Disconnection must be effected within 600 seconds.

NOTE This test serves to verify the measuring accuracy and the maximum set time.

b) The voltage is set for 600 s to Un, then for 600 s to 108 % Un. Disconnection should not occur.

NOTE This test serves to verify the measuring accuracy.

c) The voltage is set to 106 % Un and maintained for 600 s. The voltage is then set to 114 % Un.

Disconnection must be effected within 300 seconds. In the picture below are offered graphically the results of the test.

Measured a)

Report N. 2218 / 0234 - 3 Page 75 of 128

VDE-AR-N 4105:2011-08

Measured b)

Measured c)

Report N. 2218 / 0234 - 3 Page 76 of 128

VDE-AR-N 4105:2011-08

4.11.3 Frequency protection functions These tests have been performed according to the points 6.5.1 and 6.5.2 of VDE-AR-N 4105:2011-08 and the paragraph 5.4.5.4 of VDE V 0124-100:2012-07

Disconnection time measured

Protective function

Frequency changes

Disconnection time limits

Test 1 (ms) Test 2 (ms) Test 3 (ms)

Frequency increase

protection (f>)

50.00 Hz to 51.48 Hz to 51.55 Hz

< 200 ms 161 163 162

Frequency decrease

protection (f<)

50.00Hz to 47.53Hz to 47.45 Hz

< 200 ms 160 151 155

Report N. 2218 / 0234 - 3 Page 77 of 128

VDE-AR-N 4105:2011-08


Overfrequency 51.5 Hz- Test 1

CH1: Output Voltage, CH2: Tirp signal, CH4: Output current

Report N. 2218 / 0234 - 3 Page 78 of 128

VDE-AR-N 4105:2011-08


Report N. 2218 / 0234 - 3 Page 79 of 128

VDE-AR-N 4105:2011-08


Report N. 2218 / 0234 - 3 Page 80 of 128

VDE-AR-N 4105:2011-08

Underfrequency 47.5 Hz- Test 1

Report N. 2218 / 0234 - 3 Page 81 of 128

VDE-AR-N 4105:2011-08

Underfrequency 47.5 Hz - Test 2

Report N. 2218 / 0234 - 3 Page 82 of 128

VDE-AR-N 4105:2011-08

Underfrequency 47.5 Hz - Test 3

Report N. 2218 / 0234 - 3 Page 83 of 128

VDE-AR-N 4105:2011-08

4.12 CONNECTION CONDITIONS AND SYNCHRONISATION 4.12.1 General The power generation system shall be connected to the network only if both voltage and frequency are within the tolerance range according to the 8.3.1 of VDE-AR-N 4105:2011-08 and the paragraph 5.5.1 of VDE V 0124-100:2012-07

In the pictures below are offered the tests performed. The inverter has to be reconnected after a delay time of 60 seconds once voltage and frequency are within the range specified. It is also shown that the active power doesn’t exceed the gradient of 10 % of the active power per minute (green line).

The results are offered in the table below

Test item Measured

Value Reconnection (Yes or No?)

Reconnection Time (s) (>60s)

Uist < 84% Un 83.9% Un No --

Uist ≥ 84% Un 85.1% Un Yes 67.7

Uist > 111% Un 111.7% Un No --

Uist ≤ 111% Un 107.4% Un Yes 67.5

fist = 47.45Hz 47.45 Hz No --

fist ≥ 47.55Hz 47.55 Hz Yes 67.4

fist = 50.1Hz 50.10 No --

fist ≤ 50.0Hz 50.00 Yes 67.7

Report N. 2218 / 0234 - 3 Page 84 of 128

VDE-AR-N 4105:2011-08


Uist < 84% Un

Uist ≥ 84% Un

Reconnection delay time limit: 60 s Resconnection time measured: 67.7 s

Report N. 2218 / 0234 - 3 Page 85 of 128

VDE-AR-N 4105:2011-08

Uist > 111% Un

Uist ≤ 111% Un

Reconnection delay time limit: 60 s Resconnection time measured: 67.5 s

Report N. 2218 / 0234 - 3 Page 86 of 128

VDE-AR-N 4105:2011-08

fist = 47.45Hz

fist ≥ 47.55Hz

Reconnection delay time limit: 60 s Reconnection time measured: 67.4 s

Report N. 2218 / 0234 - 3 Page 87 of 128

VDE-AR-N 4105:2011-08

fist = 50.10Hz

fist ≤ 50.0Hz

Reconnection delay time limit: 60 s Reconnection time measured: 67.7 s

Report N. 2218 / 0234 - 3 Page 88 of 128

VDE-AR-N 4105:2011-08

4.12.2 Reconnection after short interruption These tests have been measured according to the paragraph 8.3.1 of VDE-AR-N 4105:2011-08 and the paragraph 5.5.2 of VDE V 0124-100:2012-07.

To verify the short interruption, the network voltage is reduced from the nominal voltage with a jump to 77 % Un. After 2 s the system is switched to the nominal voltage. The reconnection time must be longer

than 5 s.

To verify the short interruption, the network voltage is reduced from the nominal voltage with a jump to 77 % Un. After 4 s the system is switched to the nominal voltage. The reconnection time must be longer

than 60 s.

The short interruption may also be implemented by a jump of less than or equal to 77 % Un.

The results are offered in the table below

Test item Reconnection Time

Limited (s) Reconnection Time

measured(s)

Un jump to 77%Un, after 2s switched to Un

>5 17.9


>60 66.4

Report N. 2218 / 0234 - 3 Page 89 of 128

VDE-AR-N 4105:2011-08



Report N. 2218 / 0234 - 3 Page 90 of 128

VDE-AR-N 4105:2011-08

Un jump to 77%Un,after 4s switched to Un

Report N. 2218 / 0234 - 3 Page 91 of 128

VDE-AR-N 4105:2011-08

4.13 ANTI ISLANDING

This test has been performed according to the point 6.5.3 of VDE-AR-N 4105:2011-08 and the

paragraph 5.4.6 of VDE V 0124-100:2012-07.

All the tests and checks have been performed in accordance with the reference Standard as specified

previously. The used quality factor of resonant load was Qf=2.

There are required three different tests:

Test A is at full power

Test B is at 50%Pn

Test C is at 20%Pn

Report N. 2218 / 0234 - 3 Page 92 of 128

VDE-AR-N 4105:2011-08

4.13.1 Test A

Balanced Load

M (%) N (%) Disconnection (ms)

(limit at t=5s)

0 -5 888

0 -4 927

0 -3 983

0 -2 970

0 -1 930

0 0 1055

0 1 1049

0 2 1018

0 3 1040

0 4 1001

0 5 975

Report N. 2218 / 0234 - 3 Page 93 of 128

VDE-AR-N 4105:2011-08

Test A(50Hz) M(%)=0 & N(%)=0

Test A(50Hz) M(%)=0 & N(%)=+1

Report N. 2218 / 0234 - 3 Page 94 of 128

VDE-AR-N 4105:2011-08

Test A(50Hz) M(%)=0 & N(%)=+2

Test A(50Hz) M(%)=0 & N(%)=+3

Report N. 2218 / 0234 - 3 Page 95 of 128

VDE-AR-N 4105:2011-08

Test A(50Hz) M(%)=0 & N(%)=+4

Test A(50Hz) M(%)=0 & N(%)=+5

Report N. 2218 / 0234 - 3 Page 96 of 128

VDE-AR-N 4105:2011-08

Test A(50Hz) M(%)=0 & N(%)=-1

Test A(50Hz) M(%)=0 & N(%)=-2

Report N. 2218 / 0234 - 3 Page 97 of 128

VDE-AR-N 4105:2011-08

Test A(50Hz) M(%)=0 & N(%)=-3

Test A(50Hz) M(%)=0 & N(%)=-4

Report N. 2218 / 0234 - 3 Page 98 of 128

VDE-AR-N 4105:2011-08

Test A(50Hz) M(%)=0 & N(%)=-5

Report N. 2218 / 0234 - 3 Page 99 of 128

VDE-AR-N 4105:2011-08

4.13.2 Test B

Balanced Load


(limit at t=5s)

0 -5 868

0 -4 904

0 -3 980

0 -2 915

0 -1 928

0 0 1121

0 1 1018

0 2 1021

0 3 1039

0 4 988

0 5 958

Report N. 2218 / 0234 - 3 Page 100 of 128

VDE-AR-N 4105:2011-08

Test B(50Hz) M(%)=0 & N(%)=0

Test B(50Hz) M(%)=0 & N(%)=+1

Report N. 2218 / 0234 - 3 Page 101 of 128

VDE-AR-N 4105:2011-08

Test B(50Hz) M(%)=0 & N(%)=+2

Test B(50Hz) M(%)=0 & N(%)=+3

Report N. 2218 / 0234 - 3 Page 102 of 128

VDE-AR-N 4105:2011-08

Test B(50Hz) M(%)=0 & N(%)=+4

Test B(50Hz) M(%)=0 & N(%)=+5

Report N. 2218 / 0234 - 3 Page 103 of 128

VDE-AR-N 4105:2011-08

Test B(50Hz) M(%)=0 & N(%)=-1

Test B(50Hz) M(%)=0 & N(%)=-2

Report N. 2218 / 0234 - 3 Page 104 of 128

VDE-AR-N 4105:2011-08

Test B(50Hz) M(%)=0 & N(%)=-3

Test B(50Hz) M(%)=0 & N(%)=-4

Report N. 2218 / 0234 - 3 Page 105 of 128

VDE-AR-N 4105:2011-08

Test B(50Hz) M(%)=0 & N(%)=-5

Report N. 2218 / 0234 - 3 Page 106 of 128

VDE-AR-N 4105:2011-08

4.13.3 Test C

Balanced Load


(limit at t=5s)

0 -5 552

0 -4 567

0 -3 870

0 -2 940

0 -1 980

0 0 1140

0 1 1072

0 2 728

0 3 940

0 4 996

0 5 587

Report N. 2218 / 0234 - 3 Page 107 of 128

VDE-AR-N 4105:2011-08

Test C(50Hz) M(%)=0 & N(%)=0

Test C(50Hz) M(%)=0 & N(%)=+1

Report N. 2218 / 0234 - 3 Page 108 of 128

VDE-AR-N 4105:2011-08

Test C(50Hz) M(%)=0 & N(%)=+2

Test C(50Hz) M(%)=0 & N(%)=+3

Report N. 2218 / 0234 - 3 Page 109 of 128

VDE-AR-N 4105:2011-08

Test C(50Hz) M(%)=0 & N(%)=+4

Test C(50Hz) M(%)=0 & N(%)=+5

Report N. 2218 / 0234 - 3 Page 110 of 128

VDE-AR-N 4105:2011-08

Test C(50Hz) M(%)=0 & N(%)=-1

Test C(50Hz) M(%)=0 & N(%)=-2

Report N. 2218 / 0234 - 3 Page 111 of 128

VDE-AR-N 4105:2011-08

Test C(50Hz) M(%)=0 & N(%)=-3

Test C(50Hz) M(%)=0 & N(%)=-4

Report N. 2218 / 0234 - 3 Page 112 of 128

VDE-AR-N 4105:2011-08

Test C(50Hz) M(%)=0 & N(%)=-5

Report N. 2218 / 0234 - 3 Page 113 of 128

VDE-AR-N 4105:2011-08

5 PICTURES

General view

Back view

Report N. 2218 / 0234 - 3 Page 114 of 128

VDE-AR-N 4105:2011-08

Front view of Main board

Back view of Main board

Report N. 2218 / 0234 - 3 Page 115 of 128

VDE-AR-N 4105:2011-08

Front View of LCD board

Back View of LCD board

Report N. 2218 / 0234 - 3 Page 116 of 128

VDE-AR-N 4105:2011-08

Front View of Control board

Back View of Control board

Report N. 2218 / 0234 - 3 Page 117 of 128

VDE-AR-N 4105:2011-08

Front View of AC output board

Back View of AC output board

Report N. 2218 / 0234 - 3 Page 118 of 128

VDE-AR-N 4105:2011-08

Front View of DC input board

Back View of DC input board

Report N. 2218 / 0234 - 3 Page 119 of 128

VDE-AR-N 4105:2011-08

Front View of Communication board

Back View of Communication board

Report N. 2218 / 0234 - 3 Page 120 of 128

VDE-AR-N 4105:2011-08

Front View of DC combine board

Back View of DC combine board

Report N. 2218 / 0234 - 3 Page 121 of 128

VDE-AR-N 4105:2011-08

Front View of SOFAR 60000TL, SOFAR 70000TL-HV Cap. board

Back View of SOFAR 60000TL, SOFAR 70000TL-HV Cap. board

Report N. 2218 / 0234 - 3 Page 122 of 128

VDE-AR-N 4105:2011-08

Front View of SOFAR 50000TL Cap. board

Back View of SOFAR 50000TL Cap. board

Report N. 2218 / 0234 - 3 Page 123 of 128

VDE-AR-N 4105:2011-08

Front View of RS232 board

Back View of RS232 board

Report N. 2218 / 0234 - 3 Page 124 of 128

VDE-AR-N 4105:2011-08

Intelnal View

Connection interface

Report N. 2218 / 0234 - 3 Page 125 of 128

VDE-AR-N 4105:2011-08

AC output connection

External Eathing connection terminal

Report N. 2218 / 0234 - 3 Page 126 of 128

VDE-AR-N 4105:2011-08

Side view

Serial Number: ZJ1ES160HCJ252

Report N. 2218 / 0234 - 3 Page 127 of 128

VDE-AR-N 4105:2011-08

Software Version: V2.00

Report N. 2218 / 0234 - 3 Page 128 of 128

VDE-AR-N 4105:2011-08

6 ELECTRICAL SCHEMES

Equipment under testing

---------------------------------------------END OF REPORT------------------------------------------