on the given range of performed tests - Băng keo | Keo xịticdcorp.com.vn/images/download/20kV QTII 3-C Test Report QTII(X)6S... · Scope of Test: According to CENELEC HD 628 S1

This documentation shall not be reproduced in extracts without written approval by IPH GmbH. The test results relate only to the object tested.

Independent test laboratory, accredited by Deutsche Akkreditierungsstelle Technik (DATech) e.V. in the fields of h.v. apparatus and switchgear, power cables and power cable accessories, l.v. apparatus and switchgear, installation equipment and switching and control equipment..

DAT - P - 019/92

IPH·LANDSBERGER ALLEE 378·D-12681 BERLIN·TEL. 030/54 96 02 00 FAX 030/54 96 02 22

Independent, accredited testing station · Member laboratory of STL and LOVAG

T E S T C O N F I R M A T I O N o n t h e g i v e n r a n g e o f p e r f o r m e d t e s t s

3M Laboratories Europe Zweigniederlassung der 3M Deutschland GmbH Carl-Schurz-Str. 1 D-41453 Neuss

CLIENT

3M Laboratories Europe MANUFACTURER Three-core silicone outdoor termination for three-core power cables with extruded synthetic insulation

TEST OBJECT

QTII(X)6S-32 TYPE

3 test samples MANUFACTURING NO.

Rated voltage U0/U Maximum value of highest system voltage Um

Rated cross-section range

12/20 24

95...300

kV kV mm2

RATED CHARACTERISTICS GIVEN BY THE CLIENT

Based on CENELEC Harmonization Document HD 629.1 S1 November 1996 CENELEC Harmonization Document HD 628 S1 November 1996 DIN VDE 0278-629-1 (VDE 0278 Teil 629-1): 1997-11 DIN VDE 0278-628 (VDE 0278 Teil 628): 1997-11 and as agreed with the client

NORMATIVE DOCUMENT

Test series A1, A2 and A3 RANGE OF TESTS PERFORMED

18 February 2002 to 2 May 2002 DATE OF TEST

The type tests of test series A1, A2 and A3 have been PASSED. The test results are documented in EPM Test Report No. 410101.

TEST RESULT

The tests were witnessed by IPH. We herewith certify the correctness of the tests and the respective test reports.

DR. R. PLATH J. WITTWER Head of high-voltage test laboratory Witness

Berlin, 1 November 2002

SWM- Versorgungs GmbH• • Postfach • 80287 München

Munich, june 23th, 2002

Test ReportNr. 410101

Subject of Test: 3 core silicone outdoor termination QTII 12/20(24) kVType QTII(X)6S-32termination body size K

Manufacturer: 3M Laboratories (Europe)Carl- Schurz- Str. 1D- 41453 Neuss

Applicant: 3M Company

Scope of Test: According to CENELEC HD 628 S1 and CENELEC HD 629.1 S1

Test requirements for accessories for extruded polymeric cables with

rated voltage from 3.6/ 6 (7.2) kV up to 20.8/ 36 (42) kV

and requirements of the manufacturer.

Test Result: Test requirements were fulfilled.

This report gives information only about the specimens submitted for testing; it is not a certificate of quality of theseries production. This test report may be brought to the notice of third parties only in its entire wording. Any publication or duplication requires the previous written consent of the Elektrisches Prüfamt München. It is valid only in its entirety and comprises 19 pages and 3 appendices.

Versorgungs GmbHMess- und Abrechnungsservice

Besuchsanschrift:Franzstr. 980802 MünchenSachbearbeiter:Herr NevihostenyTelefon:2361- 8022Telefax:2361- 8033

Elektrisches Prüfamt München Report No. 410101 Page 2

Test PeriodStart: 18.02.2002 Completion: 02.05.2002

Data of Test Specimen

Number:

Cable:

Cable data:

Cable length:

2 test loops respectively one 3 core silicone outdoor termination QTII 12/20(24) kV Type QTII(X)6S-32.

N2XSEFGY 3x 150 RM 12/ 20 kV

Outer ∅ cable sheath= 79.0 mm Outer ∅ semi-cond.layer= 28.0mmOuter ∅ primary insulation= 26.8 mm Outer ∅ conductor= 14.6 mmOuter ∅ copper screen= 28.2 mm

approx. 2.5 m

Installation

Test loops were installed by technicians of the manufacturerat the Elektrisches Prüfamt München according to installation instructions

of attached Appendix 3.


Test Program

Sequence of tests according to HD 629.1 S1:1996, Table 4and 3M Requirements

No. TestsTest acc. to

Section Page

1D.C. withstand voltage test, dry15 min. at 6 UO 72 kV 5 4

2A.C. withstand voltage test, dry5 min. at 4.5 UO 55 kV 4 5

3A.C. withstand voltage test, dry4 h. at 4.5 UO 48 kV 4 5

4A.C. withstand voltage test, under rain1 min. at 4.0 UO 48 kV 4 6

5Partial discharge 24 kV < 20 pCat ambient temperature 15 kV < 3 pC 7 7+ 8

6Impulse withstand voltage test at elevated temperature10 pulses of each polarity 125 kV and 150 kV 6+ 8 9+ 10

7Thermal cycling test in air3 cycles at 2.5 UO 30 kV 523 A 8+ 9 11

8Partial discharge at ambient temperature 24 kV < 20 pC 7 11

9Partial dischargeat elevated temperature 24 kV < 20 pC 7+ 8 12

10Thermal cycling test in air113 cycles at 2.5 UO 30 kV 523 A 9 12

11Test of water tightness, combined with 10 heat cycles 523 A 9 12

12Partial discharge 24 kV < 20 pCat ambient temperature 15 kV < 3 pC 7 13

13Partial discharge 24 kV < 20 pCat elevated temperature 15 kV < 3 pC 7+ 8 13

14Thermal short circuit ( screen )2 short circuits at 1 s 4.5 kA 10 14

15Thermal short circuit ( conductor )2 short circuits at 1 s 27.2 kA 11 14

16Impulse withstand voltage test at ambient temperature10 pulses of each polarity 125 kV and 150 kV 6 15

17A.C. withstand voltage test at ambient temperature15 min. at 2.5 UO 30 kV 4 16

18D.C. withstand voltage test, dry30 min. at 8 UO 96 kV 5 17

19∗ Salt fog test 1000 h(1600 ± 200 ) mS/m at 1.25 UO 15 kV 13 18

20 Examination - 19

∗ Test was conducted on a special test loop.


The following tests were conducted in compliance with the test sequence on page 3.

D.C. Withstand Voltage Test, Dry, according to Section 5( Test No. 1 )

The test loops between conductor and screen were exposed to a negative D.C. voltage of

72 kV for 15 min.

The A.C. voltage share in the D.C. voltage was about 3%.

relative humidity of air atmospheric pressure temperature

42 % 956 mbar 21 °C

Result: No breakdown occurred on the two test loops.

ST = Regulating transformerHT = High-voltage transformerPr = Test specimenM = D.C. voltage measuring instrumentG = RectifierC = Capacitor

Connection Diagram for D.C. Withstand Voltage Test

ST380/0...380 V

HT380/100000 V

30 kVA30 kVA

Pr M

G

C


A.C. Withstand Voltage Test, Dry, according to Section 4( Tests No. 2 and No. 3)

An effectively sinusoidal A.C. voltage of 55 kV rms, 50 Hz, was applied successively between

one conductor, the other grounded conductors and the screen for 5 minutes each time.

The voltage was continuously increased to the specified value and was then held constant

during the required duration of the test.

Subsequently the test was repeated as described in test no. 2, with an effectively sinusoidal A.C.

voltage of 48 kV rms, 50 Hz, for 4 hours each time.


42 % 956 mbar 21 °C


ST = Regulating transformerHT = High-voltage transformerPr = Test specimenSW = Measuring transformerM = Voltage measuring instrument

Connection Diagram for A.C. Withstand Voltage Test

ST380/0...380 V

HT380/100000 V

30 kVA30 kVA

Pr

100 V (Kl 0,1)30000

60000

SW

M


Power Frequency Voltage Test under Artificial Rainaccording to Section 3.1 ( Test No. 4 )

The test specimen was arranged as specified and exposed to artificial rain in compliance with

HD 588.1, Section 9.1.

Conditions: Average quantity of rain: 3 mm/ min.

Temperature of the collected water approx. 20°C

Specific resistance of the water at 20 °C: 100 Ω×m

The specimen was exposed to a preliminary rain at a load-free condition for approx. 3 minutes.

Subsequently, under rain an effectively sinusoidal A.C. voltage of 48 kVrms, 50 Hz, was applied

successively between one conductor, the other grounded conductors and the screen, each time

for 1 minute.

The voltage was continuously increased to the specified value within 10 seconds and was then

held constant during the required duration of the test.


42 % 956 mbar 21 °C




ST380/0...380 V

HT380/100000 V

30 kVA30 kVA

Pr

100 V (Kl 0,1)30000

60000

SW

M


Partial Discharge Test at Ambient Temperature according to Section 7( Test No. 5 )

a) Measuring instrument

The partial discharge detector ICM compact- Version 1.42 01/24/97 of

Power Diagnostix Systems GmbH was used to measure the partial discharge

on the test loops, depending on the applied voltage.

Indicating sensitivity: 0.2 pC

Basis interference level: < 0.5 pC

b) Test circuit

Coupling quadripole was connected in series to test loops.

Tr = High-voltage sourceU = High-voltage measuring instrumentZ = ImpedanceZA = Coupling quadripoleCP = Test loopCK= Coupling capacitorD = DetectorQ = Calibrator

Connection Diagram for Partial Discharge Test

Tr

CK

ZA

D

Q

U

Z


c) Test performance

The test loops were stored in a dry and clean condition for 3 hours before the test, at an

ambient temperature of about 20°C.

Afterwards the connection elements were made discharge free by use of shielding electrodes,

and a test A.C. voltage of 24 kV was applied and the maximum value of the partial discharge

intensity was measured within 1 minute.

Subsequently, the voltage was decreased to a test A.C. voltage of 15 kV and the

partial discharge intensity was repeated.


42 % 946 mbar 20 °C

Result of the partial discharge test:

partial discharge ( pC ) conductor atTest loop 24 kV 15kV

no. 1 L 1 < 10 < 3

no. 1 L 2 < 10 < 3

no. 1 L 3 < 10 < 3

no. 2 L 1 < 10 < 3

no. 2 L 2 < 10 < 3

no. 2 L 3 < 10 < 3

Admissible partial discharge level: ≤ 10 pC


Impulse Withstand Voltage Test according to Section 6( Test No. 6)

The test specimens were arranged in compliance with the instruction, were heated with 523 A

for about 3 hours, and the temperature was held constant during the test performance.

The test was performed with an impulse voltage of which the rise time was approx. 1.2 µs and

the half-value decay was approx. 50 µs.

The test loops were exposed to 10 impulses each with an impulse voltage of 125 kV and

10 impulses each with an impulse voltage of 150 kV of positive and negative polarity

between one conductor, the other grounded conductors and the screen.

Prior to the tests with positive and negative polarity, the test loops were exposed once to 50 %,

65 % and 80 % of the nominal impulse voltage.

CS = Impulse capacitorF = Spark gap dischargerRe = Discharge resistorL = Impulse circuit inductive resistorRd = Damping resistorCb = Additional load capacitorPr = Test specimenT = Impulse voltage dividerM = Impulse voltage measuring instrument

Simplified Connection Diagram

U =

M

Cb

Cb

PrReCs

F RdL



44 % 944 mbar 21 °C


The following impulse oscillograms of conductor 1 of test loop 1 do not show any

deviation from the calibration oscillogram and the impulse oscillograms of conductor 2 and

conductor 3.

The oscillogram of the second test loop was identical to those of test loop 1.

10th impulse of 125 kV of 10th impulse of 125 kV ofnegative polarity positive polarity



Thermal Cycling Test in Air according to Section 9( Test No. 7 )

The test loops were connected, in compliance with HD 628 S1:1996 Section 8, for one-phase

heating to the source of current and were exposed to 3 heat cycles in air, with a continuous test

voltage of 30 kV being applied.

Each heat cycle consisted of a five-hours heating period and a three-hours cooling period.

The current measured at a control cable was 523 A with a conductor temperature of 95°C.

At the end of the heating period of the first heat cycle, the current was adjusted to the specified

value and remained unchanged during the subsequent test run.

Ambient temperature during the heat cycling test was about 20°C.



After the 3rd heat cycling test the partial discharge test at ambient temperature was repeated

as described in test no. 5.


43 % 945 mbar 20 °C


no. 1 L 1 < 10 < 3

no. 1 L 2 < 10 < 3

no. 1 L 3 < 10 < 3

no. 2 L 1 < 10 < 3

no. 2 L 2 < 10 < 3

no. 2 L 3 < 10 < 3



Partial Discharge Test at Elevated Temperature according to Section 7( Test No. 9)

The test specimens were arranged in compliance with the instruction as described in test no. 5,

were heated with 523 A for about 3 hours, and the temperature was held constant during test

performance.


43 % 945 mbar 20 °C

Result of partial discharge test:


no. 1 L 1 < 10 < 3

no. 1 L 2 < 10 < 3

no. 1 L 3 < 10 < 3

no. 2 L 1 < 10 < 3

no. 2 L 2 < 10 < 3

no. 2 L 3 < 10 < 3

Admissible partial discharge level ≤ 10 pC

Thermal Cycling Test in Air according to Section 9( Test No. 10 )

The same as test no. 7, however, with 113 heat cycles.


Test of Water Tightness according to Section 3.11.2 with Heat Cyclesaccording to Section 3.4

( Test No. 11 )

The test loops were arranged with the terminations in a water tank in such a way that the whole

termination, including the top of the connection element, was fully immersed in water. In this

position they were subjected to 10 heat cycles at a current of 523 A with a conductor temperature

of 95°C. Each heat cycle consisted of a five-hours heating period and a three-hours cooling

period. The conductivity of the water was 700 mS/ m.



The partial discharge test at ambient temperature was repeated as described in test no. 5.


46 % 952 mbar 20 °C



no. 1 L 1 < 10 < 3

no. 1 L 2 < 10 < 3

no. 1 L 3 < 10 < 3

no. 2 L 1 < 10 < 3

no. 2 L 2 < 10 < 3

no. 2 L 3 < 10 < 3


Partial Discharge Test at Elevated Temperature according to Section 7( Test No. 13 )

The test specimens were arranged in compliance with the instructions as described in test no. 5,

were heated with 523 A for about 3 hours, and the temperature was held constant during test

performance.



no. 1 L 1 < 10 < 3

no. 1 L 2 < 10 < 3

no. 1 L 3 < 10 < 3

no. 2 L 1 < 10 < 3

no. 2 L 2 < 10 < 3

no. 2 L 3 < 10 < 3



Thermal Short Circuit Test of Screen according to Section 11( Test No. 14 )

The short circuit current of the screen was 4.5 kA/ 1 s according to the manufacturer's

information.

Test set-up: Both ends of the screen were connected to the source of current.

The conductors were set up in compliance with the instruction, heated with 523 A for about 3

hours, and the temperature was held constant during test performance.

Test current 4.5 kATest time 1.0 s

This short circuit loading was repeated once, following the cooling down of the cable screen to atemperature of 5 K to 10 K above the initial short circuit temperature Θi.( Room temperature 21 °C ).

Result: No damage was detected in a visualinspection of both test loops.

Thermal Short Circuit Test of Conductor according to Section 11( Test No. 15 )

The maximum admissible short circuit temperature of the cable conductor ΘSC was 250°C,therefore a short- circuit- current of 27.2 kA is necessary.Test set-up: One end of the cable was connected to the source of current and the other end was short circuited.Owing to the test device, the test had to be carried out with a lower current, while the test time was prolonged accordingly.

Test current 16.9 kATest time 2.6 s

The short circuit loading was repeated once, following the cooling down of the conductors to a temperature of 5 K to 10 K above the initial circuit temperature Θ.( Room temperature 21 °C ).

Result: No damage was detected in avisual inspection of both test loops.


Impulse Withstand Voltage Test at Ambient Temperature according to Section 6

( Test No. 16)

The impulse withstand test at ambient temperature was repeated as described in test no. 6,

without heating.


58 % 960 mbar 21 °C


The following impulse oscillograms of conductor 1 of test loop 1 do not show any

deviation from the calibration oscillogram and the impulse oscillograms of conductor 2 and

conductor 3.

The oscillogram of the second test loop was identical to those of test loop 1.




A.C. Withstand Voltage Test at Ambient Temperature according to Section 4

( Test No. 17 )

An effectively sinusoidal A.C. voltage of 30 kV rms, 50 Hz, was applied to both specimens

between one conductor, the other grounded conductors and the screen for 15 minutes each time.

The voltage was continuously increased to the specified value and was then held constant

during the required duration of the test.


54 % 947 mbar 21 °C




ST380/0...380 V

HT380/100000 V

30 kVA30 kVA

Pr

100 V (Kl 0,1)30000

60000

SW

M


D.C. Withstand Voltage Test, Dry, according to Section 5( Test No. 18 )

The test loops between conductor and screen were exposed to a negative D.C. voltage of

96 kV for 30 min.

The A.C. voltage share in the D.C. voltage was about 3%.


58 % 946 mbar 21 °C


ST = Regulating transformerHT = High-voltage transformerPr = Test specimenM = D.C. voltage measuring instrumentG = RectifierC = Capacitor

Connection Diagram for D.C. Withstand Voltage Test

ST380/0...380 V

HT380/100000 V

30 kVA30 kVA

Pr M

G

C


Test under Salt Fog according to Section 13( Test No. 19)

Test was conducted on a special test loop.

The test loop was stored in a humidity chamber in compliance with the specifications ofCENELEC HD 628.1 S 1/ 1996 and CENELEC HD 629.1 S 1/ 1996.

Average room temperature : approx. 20 °C

Quantity of sprayed water : 0.4 ± 0.1 lm h3

Conductivity of 1600 ± 200 mS / m at 23 °Csprayed water:

Test voltage during 15 kV rms. 50 Hz (between humid storage : conductor and screen)

Overcurrent release : 1 ± 0.1 A

Test time : 1000 h

Requirements : No breakdown or flash-over.Not more than three releases.No fundamental damages.

Description: All test specimens show salt incrustations on the cable lugsand feathery discharge traces on the surface of the termination, however,they are not burnt in.

Result : The requirements are fulfilled.

Page 1 of Appendix 2 contains pictures of the test loop after test performance of 1000 hours.


Examination( Test No. 19 )

The 3 core silicone outdoor terminations QTII 12/20(24) kV, Type QTII (X)6S-32 passed the testaccording to CENELEC HD 628.1 S 1: 1996 and CENELEC HD 629.1 S 1: 1996,

however, a dynamic short circuit test was not performed.

( Nevihosteny )Chief Test Engineer

Elektrisches Prüfamt München Report No. 410101Appendix 1Page 1 of 1

Measuring Instruments Used

No. Type of Measuring Instrument Manufacturer

102077 Precision voltmeter Goerz

108013 Standard voltmeter POSE 45 Ritz

109106 Discharge magnitude meter type 666 ERA

109107 Discharge detector model 3 type 652 ERA

109108 Discharge detector input unit no. 3 ERA

102078 Impulse voltmeter StM 76 MWB

112093 HEME 1000 snap-on ammeter HEME

102082 Analogue voltmeter 0.5 AEG

108021 Measuring transformer GSZ 30 Ritz

109066 High-voltage resistor Haefely

109067 High-voltage resistor Haefely

109068 D.C. voltage measuring instrument Haefely

111085 Multimeter model 87 Fluke

Date: 03. 05.2002

Test performed by: Nevihosteny, Frackowiak











Documents

on the given range of performed tests - Băng keo | Keo xịticdcorp.com.vn/images/download/20kV QTII 3-C Test Report QTII(X)6S... · Scope of Test: According to CENELEC HD 628 S1