IEEE 693-2005 Seismic Qualification Testing of Hubbell ... · IEEE 693-2005 Seismic Qualification Testing of Hubbell Power Systems SVNH Surge Arresters Hubbell Report Number EU1602

IEEE 693-2005 Seismic Qualification Testing of

Hubbell Power Systems SVNH Surge Arresters

Hubbell Report Number EU1602Qualification Level: High Performance Level 1.0g ZPA (2.0 x High RRS)Qualified Unit: Hubbell SVNH 318 kV MCOV Composite Surge Arrester

Report Prepared For: Hubbell Power Systems

Testing Conducted at:UNR Large Scale Structures Laboratory (LSSL)

1664 N. Virginia Street, Reno, NV 89557

Shake Table Test Date(s): June 22, 2016Report Date: October 3, 2016

Tested Equipment Manufactured and Provided by: Hubbell Power Systems

Report Prepared By: Report Reviewed By:

________________________ _____________ __________________________ _______________

Michael Truong, Date Josh Sailer, DateField Project Engineer, VMC Group Project Manager, DCL

This test report shall not be reproduced except in full, without the written approval of the laboratory. The results hereinrelate only to the items tested for DCL Project No. 56180-1601A.

11/7/16

mtruong

Text Box

10/3/16

Hubbell 10/3/2016Arresters Report # 56180-1601AShake Test Lab Report Rev 00

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DisclaimerAny opinions, findings, conclusions or recommendations implied or expressed in this publication arethose of the author and do not necessarily reflect the views of the sponsor or of the test laboratory. Thetest results are only applicable to the products received. DCL has correlated the test materials with theproduct specifications.


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Table of ContentsDisclaimer .................................................................................................................................. 2

Table of Contents....................................................................................................................... 3

Key Information.......................................................................................................................... 5

1 Executive Summary ............................................................................................................ 6

2 Key Information and Results ............................................................................................... 7

2.1 Description of Equipment to be Tested and Critical Load Limits................................... 7

2.2 Equipment Configuration.............................................................................................. 7

2.3 Level to Which Equipment has been Qualified ............................................................. 7

2.4 Modifications Required ................................................................................................ 7

2.5 Anomalies or Damage Observed ................................................................................. 7

2.6 List of Supplemental Work and Options (A.5.3)............................................................ 7

2.7 List of Witnesses.......................................................................................................... 7

2.8 Test Facility.................................................................................................................. 8

2.9 Description of Shake-Table Testing Equipment ........................................................... 8

2.10 Summary of Results of Supplemental Work and Options............................................. 8

2.11 Replica of Identification Plate....................................................................................... 8

2.12 Plots of the Comparison of the TRS with the RRS ....................................................... 9

2.13 Summary of Maximum Controlling Stress, Loads, and Displacements........................10

3 Main Test Results and Test Configuration..........................................................................11

3.1 Instrumentation ...........................................................................................................11

3.2 Test Method................................................................................................................13

3.3 Functional Tests Needed ............................................................................................13

3.4 Test Sequence............................................................................................................13

4 Detailed Test Results and Supporting Data (Shake Table Test).........................................14

4.1 Frequencies and Damping ..........................................................................................14

4.2 Input Time Histories (Table Accelerations)..................................................................15

4.3 Tabulated Max Accelerations, Stresses, and Displacements at Measuring Points of All

Controlling Tests ...................................................................................................................16

4.4 Summary of Anchorage Loads....................................................................................17

5 Functional Requirements ...................................................................................................17

6 Video .................................................................................................................................17


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7 References ........................................................................................................................18

Appendix A Drawings Describing Equipment Tested...........................................................19

Appendix B Detailed Description of Shake Table ................................................................21

Appendix C Data and Calculations Supporting Summary of Results and Determination of

Controlling Variables.................................................................................................................23

Appendix D Pictures Showing Test Setup and Instrumentation ...........................................25

Appendix E Calculations Supporting Determination of Frequencies and Damping ..............32

Appendix F Calculations for Max Accelerations, Stresses, and Displacements ...................39

Appendix G Calculations Supporting Determination of Anchorage Loads ............................51

Appendix H Functionality Testing Summaries......................................................................55

Appendix I Certificate of Accreditation .................................................................................61

END OF REPORT ....................................................................................................................64


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Key Information

Unit Description Surge Arrester

Unit Designation UUT 2A

Test Sponsor and DataAcquisition Contact Information

Kelly Laplace, Quality ManagerJosh Sailer, Project Manager

Dynamic Certification Laboratories1315 Greg Parkway, Suite 109, Sparks, NV 89431

Tel: [email protected], [email protected]

Test Laboratory and ContactInformation

Sherif A ElfassUNR Large Scale Structures Laboratory (LSSL)

1664 N. Virginia Street, Reno, NV [email protected]

Unit Manufacturer and ContactInformation

Ryan Freeman, Application EngineerHubbell Power Systems

1850 Richland Avenue, Aiken, SC 29801Tel: 803-502-8171

[email protected]

Test Date(s) June 22, 2016

Certification Level High Performance Level 1.0g ZPA (2 x High RRS)


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1 Executive SummaryHubbell Power Systems (HPS) qualifies the seismic capability of its surge arresters to IEEE

693-2005. This report qualifies that standard HPS SVNH arresters, up to the size of the unit

in this report, meet the High Performance Level as demonstrated by a shake table test on a

test stand. An amplification factor of 2.0 was used for Performance Level testing according

to the provisions within IEEE 693-2005. With inclusion of the 2.0 amplification factor, the

sample was tested to a 1.0g ZPA level.

Seismic tests in accordance with IEEE 693-2005 were performed on an SVNH arrester with

a mass of 910 pounds (the measured mass includes 25 pounds added to simulate the line

end terminal connection per the standard), a height of 161.5 inches and a center of gravity

(COG) of 80.8 inches above the base. The arrester was mounted on a 96 inch test stand,

which was mounted to the shake-table interface plate.

To be qualified to the High Seismic Performance Level, IEEE 693-2005 requires that the

tested surge arrester survives the shake test with no structural damage and that it remains

functional. Functionality is demonstrated by successfully passing routine production tests

after the shake table test. These tests consist of measurement of Reference Voltage, Watts-

loss, Discharge Voltage, Partial Discharge and Seal Leak Rate.

The tested surge arrester met all requirements identified above for the High Seismic

Performance Level (1.0g ZPA). Thus, all SVNH surge arresters which do not exceed the

height, mass and COG of the test sample are also qualified to the High Seismic

Performance Level of IEEE 693-2005.


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2 Key Information and Results

2.1 Description of Equipment to be Tested and Critical Load LimitsTo accommodate the existing attachment points, a base plate was used to attach the UUT

onto the shake table using (16) 1” -8 threaded studs. The UUT pedestal was bolted directly

to the base plate using (3) 1” Grade 5 bolts and (1) 1” Grade 5 strain bolt. The surge

arrester was bolted directly to the top of the pedestal using (3) ¾” Grade 5 strain bolts. A

summary of the UUT is provided below. Data and calculations supporting the summary of

results and determination of controlling variables are provided in Appendix C.

Table 1: Summary of Unit Under Test

UUT Manufacturer Model DescriptionDimensions(LxWxH)-in

TestWeight1

(lbs)

UUT2A

Hubbell SVNH396GA318AASurge

Arrester(Composite)

60.5x60.5x161.5 910

Note:

1. Test weight includes 25 lb terminal weight.

2.2 Equipment ConfigurationThe unit was tested in its operating configuration on a pedestal stand.

2.3 Level to Which Equipment has been QualifiedThe unit has been qualified to the High Performance Level of IEEE 693, 1.0g ZPA of the

Required Response Spectrum (RRS) multiplied by a factor of 2, using 2% damping.

2.4 Modifications RequiredNo modifications were made.

2.5 Anomalies or Damage ObservedNo damage or anomalies were observed.

2.6 List of Supplemental Work and Options (A.5.3)No supplemental work or options were performed.

2.7 List of Witnesses

Table 2: List of Witnesses

Name Affiliation PositionJosh Sailer DCL Project Manager

Erik Self DCL Lab TechnicianRyan Freeman Hubbell Manufacturer Representative


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2.8 Test FacilityThe unit was tested at the University of Nevada, Reno, Large Scale Structures Laboratory.

Testing was performed by trained DCL staff and the instrumentation and data acquisition

system were regulated under DCL’s quality control program. DCL is accredited as complying

with ISO/IEC Standard 17025 by the International Accreditation Service.

2.9 Description of Shake-Table Testing EquipmentThe University of Nevada, Reno, Large Scale Structures Laboratory is equipped with a 6

degree-of freedom shake table. The shake table is approximately 9.3x9.3 feet with an

allowable specimen payload of 20 tons.

2.10 Summary of Results of Supplemental Work and OptionsNo supplemental work or options were performed.

2.11 Replica of Identification PlatePhotographs of the unit identification plates are provided as follows:

Figure 1: UUT 2A Identification Plate

Figure 2: Name Plate for Top Section


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Figure 3: Name Plate for Bottom Section

2.12 Plots of the Comparison of the TRS with the RRSPlots showing the achieved Test Response Spectrum (TRS) in comparison to the RequiredResponse Spectrum (RRS) are provided below.

Figure 4: Test Response Spectrum in X-direction

Figure 5: Test Response Spectrum in Y-direction

0

1

2

3

4

5

0.1 1 10 100

Spe

ctra

lAcc

ele

rati

on

,g

Frequency, Hz

High Required Response Spectrum, 2% Damped

TRS X

RRS H

0

1

2

3

4

5

0.1 1 10 100

Spe

ctra

lAcc

ele

rati

on

,g

Frequency, Hz


TRS Y

RRS H


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Figure 6: Test Response Spectrum in Z-direction

2.13 Summary of Maximum Controlling Stress, Loads, and

DisplacementsCritical locations on the surge arrester and the supporting structure were monitored for

maximum displacement, loads, and stresses. Monitoring requirements were in accordance

with A.2.8 and the following:

a) Maximum displacement: Top of equipment

b) Maximum stresses: Bottom metal end fitting

Table 3: Summary of Maximum Stresses, Loads, etc.

Components DescriptionTestType

MeasuredValue (f)

AllowableValue (F)

F/f

Compositesurge arrester

Max displacement:Top of Equipment

IEEETest

6.78 24 in 3.5

Bottom metalend fitting

Max stress: Bottommetal end fitting

IEEETest

15.9 40 ksi 2.5

Mid-span ofbarrel

Max stress: Mid-spanof barrel

IEEETest

12.2 30 ksi 2.5

Calculations for measured stresses and displacements can be found in Appendix C.

0

1

2

3

4

0.1 1 10 100

Spe

ctra

lAcc

ele

rati

on

,g

Frequency, Hz


TRS Z

RRS V


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3 Main Test Results and Test Configuration

3.1 Instrumentation

Table 4: Instrumentation Table

ID Type DirectionSerial

NumberLocation Function

ACC1

Accelerometer

XYZ 326-85 Shake TableTable Acceleration and

Response Spectra

ACC2 XYZ 326-86Top of

UUT StandTransmissibility andResonance Search

ACC3 XYZ 326-87CG ofUUT

ACC4 XYZ 326-88Top ofUUT

SP-01

String Pot

X SP-01X-axis

base UUT

Relative DisplacementSP-02 X SP-02

X-axistop UUT

SP-03 Y SP-05Y-axis

base UUT

SP-04 Y SP-06Y-axis

top UUT

SG-01

Strain Gage

X SG-01X-axis

bottom stand

Material Strains

SG-02 Y SG-02Y-axis

bottom stand

SG-03 X SG-03X-axis bottom metal

end fitting

SG-04 X SG-04X-axis mid-span of

barrel

SG-05 Y SG-05Y-axis bottom metal

end fitting

SG-06 Y SG-06Y-axis mid-span of

barrel

SB-01

Strain Bolt

- Bolt-04Location 1 stand

base

Anchor Bolt ForcesSB-02 - Bolt-01

Location 1 bottommetal end fitting

SB-03 - Bolt-02Location 2 bottommetal end fitting

SB-04 - Bolt-03Location 3 bottommetal end fitting


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Figure 7: Instrumentation Layout


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3.2 Test MethodThe UUT was subjected to triaxial base excitations that comply with the High Required

Response Spectrum Performance Level test, as defined in IEEE 693. The duration of the

record was set to 30 seconds. The achieved response spectrum was plotted from the

recorded motions (A1.2.2.1).

3.3 Functional Tests NeededThe unit was subjected to pre-test and post-test checks at the manufacturing facility.

3.4 Test SequenceThe following table shows the test sequence and associated IEEE 693 reference for each

test.

Table 5: Test Sequence Summary

RunID

Test Profile Axis IEEE 693 Reference

R2-01 Load Test (1151 lbs) X A1.2.5.1

R2-02 Snapback Test (864 lbs) X A1.2.1, A1.1.3

R2-03 Load Test (1151 lbs) Y A1.2.5.1

R2-04 Snapback Test (864 lbs) Y A1.2.1, A1.1.3

R2-05 Sine Sweep 0.10g, 1 oct./min, 1-33Hz X A.1.2.1

R2-06 Sine Sweep 0.10g, 1 oct./min, 1-33Hz Y A.1.2.2

R2-07 Sine Sweep 0.10g, 1 oct./min, 1-33Hz Z A.1.2.3

R2-08 IEEE 693: High Qualification Test XYZ A1.2.2.1

R2-09 Structural Inspection - -

R2-10 Sine Sweep 0.10g, 1 oct./min, 1-33Hz X A.1.2.1

R2-11 Sine Sweep 0.10g, 1 oct./min, 1-33Hz Y A.1.2.2

R2-12 Sine Sweep 0.10g, 1 oct./min, 1-33Hz Z A.1.2.3

R2-13 Load Test (1151 lbs) X A1.2.5.1

R2-14 Snapback Test (864 lbs) X A1.2.1, A1.1.3

R2-15 Load Test (1151 lbs) Y A1.2.5.1

R2-16 Snapback Test (864 lbs) Y A1.2.1, A1.1.3


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4 Detailed Test Results and Supporting Data (Shake Table Test)

4.1 Frequencies and DampingThe frequency responses of the UUT are listed graphically as transfer functions in

Appendix E. The results for the lowest resonant frequencies are shown below. The Post-

IEEE 693 Test lowest resonant frequencies did not change more than 20%.

Table 6: Calculated Natural Frequencies

ID LocationLowest Resonant Frequency (Hz)

Test SequenceX Y Z

ACC3 UUT CG 3 3 >33Pre-IEEE 693 Test

ACC4 UUT Top 3 3 >33ACC3 UUT CG 2.75 2.75 >33

Post-IEEE 693 TestACC4 UUT Top 2.75 2.75 >33

Damping was calculated by using the relative displacement data from Snapback testing.

Damping calculations can be found in Appendix E.

Table 7: Calculated Damping

Direction Damping Test Sequence

X-Axis 1.98% Pre HighQualification TestY-Axis 2.16%

X-Axis 2.01% Post HighQualification TestY-Axis 3.60%


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4.2 Input Time Histories (Table Accelerations)The IEEE 693 input time histories (table accelerations) are shown below.

Figure 8: Acceleration Time History, X-direction

Figure 9: Acceleration Time History, Y-direction

Figure 10: Acceleration Time History, Z-direction

-1.5

-1

-0.5

0

0.5

1

1.5

0.0 5.0 10.0 15.0 20.0 25.0 30.0

Acc

ele

rati

on

,g

Time, s

Table Acceleration

ACC1X

-2

-1

0

1

2

0.0 5.0 10.0 15.0 20.0 25.0 30.0

Acc

ele

rati

on

,g

Time, s

Table Acceleration

ACC1Y

-1

-0.5

0

0.5

1

0.0 5.0 10.0 15.0 20.0 25.0 30.0

Acc

ele

rati

on

,g

Time, s

Table Acceleration

ACC1Z


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4.3 Tabulated Max Accelerations, Stresses, and Displacements at

Measuring Points of All Controlling TestsThe table below shows the measured max accelerations, stresses, and displacements

during the resonance search test, high qualification test, and load test. Time histories for

each instrument during the resonance search and IEEE 693 test can be found in Appendix

F. The load test displacements after the earthquake test did not deviate more than 15%.

Table 8: Summary of Max Accelerations, Stresses, and Displacements

ID Direction Location Resonant Time History

X 0.13 1.17

Y 0.13 1.18

Z 0.17 0.83

X 1.36 1.89

Y 1.13 2.04

Z 0.16 0.9

X 2.26 3.28

Y 2.51 3.49

Z 0.23 1.57

X 3.86 6.28

Y 4.4 6.69

Z 0.26 1.31

SG-01 X X-axis bottom stand 249.59 388.7

SG-02 X Y-axis bottom stand 70.22 464.97

SG-03 X X-axis bottom metal end fitting 651.57 644.75

SG-04 X X-axis mid-span of barrel 426.14 447.95

SG-05 X Y-axis bottom metal end fitting 325.17 647.62

SG-06 X Y-axis mid-span of barrel 802.72 1160.47

SG-01 Y X-axis bottom stand 256.41 388.7

SG-02 Y Y-axis bottom stand 270.66 464.97

SG-03 Y X-axis bottom metal end fitting 647.48 644.75

SG-04 Y X-axis mid-span of barrel 362.73 447.95

SG-05 Y Y-axis bottom metal end fitting 328.58 647.62

SG-06 Y Y-axis mid-span of barrel 976.48 1160.47

SB-01 - Location 1 stand base 20857.34 27066.71

SB-02 - Location 1 bottom metal end fitting 23460.08 43422.14



At SP-02 X Top UUT 4.04 6.78

At SP-04 Y Top UUT 4.31 6.73

Value

At SP-02 X Top UUT 3.89

At SP-04 Y Top UUT 3.89

Value

At SP-02 X Top UUT 3.77

At SP-04 Y Top UUT 4.40

Load Test Displacements (inches) - Post-earthquake test

Shake Table

Top of UUT Stand

CG of UUT

Top UUT/Conductor Attachment

Accelerometers (g)

ACC1

Strain Gages (micro-strain), and Bolt Loads (lb)

Displacements (inches)

Load Test Displacements (inches) - Pre-earthquake test

ACC2

ACC3

ACC4


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4.4 Summary of Anchorage LoadsThe measured anchorage load for the UUT, as determined from the three strain bolts, is

summarized below. Strain bolt time histories can be found in Appendix G.

Table 9: Summary of Measured Anchorage Loads

ID Location Test SequenceStrain Bolt Measurements (lb) Max

Strain (lb)Start Min Max End

SB-01Location 1stand base

IEEE 693 Test 16052 13707 27067 14354

27067X Sine Sweep 16257 15989 16967 16278Y Sine Sweep 16273 15952 22298 16052Z Sine Sweep 16052 16010 16120 16052

SB-02

Location 1bottom

metal endfitting

IEEE 693 Test 12862 3733 43422 4066


SB-03

Location 2bottom

metal endfitting

IEEE 693 Test 13424 255 38433 593


SB-04

Location 3bottom

metal endfitting

IEEE 693 Test 13592 1451 47593 1756


5 Functional RequirementsFunctionality was determined by passing production checks at the manufacturer’s facility

before and after the seismic testing. The functionality tests performed followed IEC 60099-4

and ANSI/IEEE C62.11 standards. Pre-shake and post-shake functionality tests and

inspection activity summaries are shown in Appendix H.

Functional Test Summary:1. Reference Voltage (kVpeak) at 17 mA2. Watts Loss (W) at 1.2 x MCOV3. Discharge Voltage4. Partial Discharge (pC) at 1.05 x MCOV5. Seal Leak Rate (Pa*m3*s-1)

6 VideoVideo was taken of the IEEE 693 High Performance Test earthquake motion. The table

below identifies the video details.

Table 10: Video Log

UUT Test Description Date Time

UUT 2A High Performance Test 6/22/16 4:54 PM


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7 ReferencesIEEE-693-2005, Recommended Practice for Seismic Design of Substations, Institute of

Electrical and Electronics Engineers, New York, NY.


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Appendix A Drawings Describing Equipment Tested

Figure A.1: Outline Drawing of Surge Arrester


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Figure A.2: Outline Drawing of Arrester Stand


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Appendix B Detailed Description of Shake TableThe unit was tested at the University of Nevada, Reno, Large Scale Structures Laboratory. The

University of Nevada, Reno, Large Scale Structures Laboratory is equipped with a 6 degree-of-

freedom shake table. The shake table is approximately 9.3x9.3 feet with an allowable specimen

payload of 20 tons. The X, Y, Z displacement strokes are 12, 12, and 4 inches, respectively.

The system uses a total of eight MTS actuators.

Figure B.1: Shake Table Test Setup


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Figure B.2: Overhead View of Shake Table


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Appendix C Data and Calculations Supporting Summary of

Results and Determination of Controlling Variables

Max Displacement: 6.78 in

Figure C.1: UUT 2A X-Axis Displacement Time History (IEEE Motion)

Max Displacement: 6.73 in

Figure C.2: UUT 2A Y-Axis Displacement Time History (IEEE Motion)


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Figure C.3: UUT 2A Maximum Stress Calculation (IEEE Motion)

Caluculation for Maximum Stress, IEEE 693

E 24500 ksi For bottom of metal end fitting (60-40-18 iron)

E 10500 ksi For mid-span of the barrel (aluminum flange)

Max Strain

SG-01,X 644.7524 μ strain Bottom of metal end fitting

SG-02,X 447.9546 μ strain Mid-span of the barrel

SG-03,Y 647.623 μ strain Bottom of metal end fitting

SG-04,Y 1160.47 μ strain Mid-span of the barrel

Max Stress from IEEE Motion (ơ = Eε)

ơ at SG-01,X 15.8 ksi Bottom of metal end fitting

ơ at SG-02,X 4.7 ksi Mid-span of the barrel

ơ at SG-03,Y 15.9 ksi Bottom of metal end fitting

ơ at SG-04,Y 12.2 ksi Mid-span of the barrel

Maximum Stress for bottom of metal end fitting = 15.9 ksi

Maximum Stress for mid-span of the barrel = 12.2 ksi


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Appendix D Pictures Showing Test Setup and Instrumentation

Figure D.1: UUT 2A Surge Arrester

Figure D.2: UUT 2A Identification Plate


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Figure D.3: UUT 2A Top Arrester Identification Plate

Figure D.4: UUT 2A Bottom Arrester Identification Plate

Figure D.5: Base plate bolted connection to shake table


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Figure D.6: UUT 2A stand attachment to base plate

Figure D.7: ACC1 triaxial accelerometer on Shake Table

Figure D.8: ACC2 triaxial accelerometer on top of UUT stand


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Figure D.9: ACC3 triaxial accelerometer at UUT center of gravity

Figure D.10: ACC4 triaxial accelerometer on top of UUT

Figure D.11: SP-01 string pot


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Figure D.15: SG-01 and SG-02 strain gages at bottom of stand

Figure D.16: Strain gages at mid-span of the barrel and bottom of metal end fitting

Figure D.17: SB-01 strain bolt at location 1 of stand base


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Figure D18: SB-02 strain bolt at location 1 bottom metal end fitting

Figure D.19: SB-03 strain bolt at location 2 bottom metal end fitting

Figure D.20: SB-04 strain bolt at location 3 bottom metal end fitting


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Appendix E Calculations Supporting Determination of

Frequencies and Damping

Figure E.1: Resonance Frequency Top of UUT

0

10

20

30

40

1 6 11 16 21 26 31

Mag

nit

ud

e,g

Frequency, Hz

UUT 2A Top X

ACC4X

0

10

20

30

40

1 6 11 16 21 26 31

Mag

nit

ud

e,g

Frequency, Hz

UUT 2A Top Y

ACC4Y

0

2

4

6

8

10

1 6 11 16 21 26 31

Mag

nit

ud

e,g

Frequency, Hz

UUT 2A Top Z

ACC4Z


33/64

Figure E.2: Resonance Frequency CG of UUT

0

5

10

15

20

25

1 6 11 16 21 26 31

Mag

nit

ud

e,g

Frequency, Hz

UUT 2A CG X

ACC3X

0

5

10

15

20

25

1 6 11 16 21 26 31

Mag

nit

ud

e,g

Frequency, Hz

UUT 2A CG Y

ACC3Y

0

2

4

6

8

10

1 6 11 16 21 26 31

Mag

nit

ud

e,g

Frequency, Hz

UUT 2A CG Z

ACC3Z


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Figure E.3: Resonance Frequency Top of Stand

0

2

4

6

8

10

1 6 11 16 21 26 31

Mag

nit

ud

e,g

Frequency, Hz

UUT 2A Top Stand X

ACC2X

0

2

4

6

8

10

1 6 11 16 21 26 31

Mag

nit

ud

e,g

Frequency, Hz

UUT 2A Top Stand Y

ACC2Y

0

2

4

6

8

10

1 6 11 16 21 26 31

Mag

nit

ud

e,g

Frequency, Hz

UUT 2A Top Stand Z

ACC2Z


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Figure E.4: X-Axis Damping Calculation (Pre-IEEE Test)

Calculate damping from measured free vibration data

3 Hz Step 1: measure the frequency of vibration from the plot using a FRF or FFT (or cycle counting)

18.8496 rad/sec Step 2: convert the frequency in Hz to rad/sec

Time Peak Step 3: pick peaks from the response, either displacement or acceleration

(sec) (in or g)

0.195 2.31

0.508 2.13

0.85 1.92 Step 4: plot the peak data on the same chart as the measured data

1.19 1.62 Step 5: apply an Excel trendline using an exponential fit, and set equation to show on chart

2.54 0.98

-0.374 exponent Step 6: read Excel's exponent from the exponential fit equation

1.9841 damping factor in percent Step 7: negate exponent and divide by nat freq from Step 2 (then multiply by 100 for percent)


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Figure E.5: Y-Axis Damping Calculation (Pre-IEEE Test)





(sec) (in or g)

0.324 2.6

0.66 2.23

1 1.9 Step 4: plot the peak data on the same chart as the measured data


1.68 1.5




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Figure E.6: X-Axis Damping Calculation (Post-IEEE Test)





(sec) (in or g)

0.184 2.67

0.523 2.29



1.6 1.55




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Figure E.7: Y-Axis Damping Calculation (Post -IEEE Test)





(sec) (in or g)

0.18 2.28

0.54 1.79



1.6 0.87




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Appendix F Calculations for Max Accelerations, Stresses, and

Displacements

Figure F.1: Acceleration Time History (Pre-Test X Sine Sweep)


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Figure F.2: Acceleration Time History (Pre-Test Y Sine Sweep)


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Figure F.3: Acceleration Time History (Pre-Test Z Sine Sweep)


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Figure F.4: Acceleration Time History (IEEE 693 Motion X)


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Figure F.5: Acceleration Time History (IEEE 693 Motion Y)


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Figure F.6: Acceleration Time History (IEEE 693 Motion Z)


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Figure F.7: Strain Time History (Pre-Test X Sine Sweep)


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Figure F.8: Strain Time History (Pre-Test Y Sine Sweep)


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Figure F.9: Strain Time History (IEEE 693 Motion X)


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Figure F.10: Strain Time History (IEEE 693 Motion Y)


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Figure F.11: UUT 2A Displacement Time History (Pre-Test Sine Sweep)


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Figure F.12: UUT 2A Displacement Time History (IEEE 693 Motion)


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Appendix G Calculations Supporting Determination of Anchorage

Loads

Figure G.1: Load Time History (Pre-Test X Sine Sweep)


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Figure G.2: Load Time History (Pre-Test Y Sine Sweep)


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Figure G.3: Load Time History (Pre-Test Z Sine Sweep)


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Figure G.4: Load Time History (IEEE 693 Motion)


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Appendix H Functionality Testing Summaries

1850 Richland Ave. East; Aiken, South Carolina 29801

Metal Oxide Surge Arrester

Pre-Seismic Test Report

Catalog Number: SVNH396GA318

Arrester MCOV: 318 kV

Duty Cycle Rating: 396 kV

Product Description: SVNH Surge Arrester, 318 kV MCOV, 396 kV RATED

Tests performed following IEC 60099-4 and ANSI/IEEE C62.11 standards:

1. Residual/Discharge Voltage – Determined by the sum of the resistor elements. Each MOV block

was individually tested and rated.

2. Internal Partial Discharge (PD) Test – Test performed with the arrester energized at 1.05 x

MCOV, the unit passes this test if it exhibits a PD level of 10pC or less.

3. Reference Voltage – Voltage at which arrester conducts 17 mA of peak resistive current.

Acceptable ranges are given below.

4. Power Frequency (PF) Test – PF Voltage applied at 1.2 x MCOV. Power loss (Watts Loss) limit

given below.

5. Leakage Check – Seal integrity verified by Helium Mass-Spectrometer.

Test Description

REFERENCE

VOLTAGE

(kV)

Discharge

Voltage (kV)

PD @ 1.05 x

MCOV (pC)

SEAL LEAK

RATE

Watts Loss @

PF VOLTAGE

(Watts)

ANSI C62.11 Clause No. - 13.2 13.3 13.4 13.5

Unit: PSESVNHUAG5168

MCOV: 168 kV

Min: Max:

216.1 226.9 Max:

482.7 Max:

10 pC Max:

1x10-6Pa*m3*s-1 Max:

336.8

Serial #: UUT2b

225.6 478.5 6.8 OK 91.6


MCOV: 150 kV

Min: Max:

192.9 202.5 Max:

431.0 Max:

10 pC Max:


300.7

Serial #: UUT2a

200.0 427.6 6.6 OK 82.4

Certified By: ____________

Alan E. Barrs

QA Engineer

1850 Richland Ave. East; Aiken, South Carolina 29801

Metal Oxide Surge Arrester

Post-Seismic Test Report

Catalog Number: SVNH396GA318

Arrester MCOV: 318 kV

Duty Cycle Rating: 396 kV

Product Description: SVNH Surge Arrester, 318 kV MCOV, 396 kV RATED

Tests performed following IEC 60099-4 and ANSI/IEEE C62.11 standards:

1. Residual/Discharge Voltage – Determined by the sum of the resistor elements. Each MOV block

was individually tested and rated.

2. Internal Partial Discharge (PD) Test – Test performed with the arrester energized at 1.05 x

MCOV, the unit passes this test if it exhibits a PD level of 10pC or less.

3. Reference Voltage – Voltage at which arrester conducts 17 mA of peak resistive current.

Acceptable ranges are given below.

4. Power Frequency (PF) Test – PF Voltage applied at 1.2 x MCOV. Power loss (Watts Loss) limit

given below.

5. Leakage Check – Seal integrity verified by Helium Mass-Spectrometer.

Test Description

REFERENCE

VOLTAGE

(kV)

Discharge

Voltage (kV)

PD @ 1.05 x

MCOV (pC)

SEAL LEAK

RATE

Watts Loss @

PF VOLTAGE

(Watts)

ANSI C62.11 Clause No. - 13.2 13.3 13.4 13.5


MCOV: 168 kV

Min: Max:

216.1 226.9 Max:

482.7 Max:

10 pC Max:


336.8

Serial #: UUT2b

224.8 478.5 7.6 OK 94.3


MCOV: 150 kV

Min: Max:

192.9 202.5 Max:

431.0 Max:

10 pC Max:


300.7

Serial #: UUT2a

201.1 427.6 7.4 OK 82.4

Certified By: ____________

Alan E. Barrs

QA Engineer

Testing performed by- DAH 8/13/14

M14-07-66 Composite Polymer Shed Seal Test- IEEE 693-2005 Section A.4.4 on part-

PSESVNXUAG5126

The cantilever/ dye portion of this test was performed at an external lab then shipped to

Wadsworth for sample dissection.

Sample as received:

The sample was first cut approx. 2” above the lower end fitting across the fiberglass core and

then locations were marked for vertical cuts and location on the tested fitting/ core.

Photos of the post cut part:

Photos of end fitting sections showing no presence of dye:

Photos of fiberglass core showing no presence of dye:

No dye was found within 2mm of the fiberglass core after testing and dissection.

DAH 8/13/14

Bottom


61/64

Appendix I Certificate of Accreditation

This is to attest that

DYNAMIC CERTIFICATION LABORATORIES 1315 GREG STREET, SUITE 109

SPARKS, NEVADA, 89431

Testing Laboratory TL-461

has met the requirements of the IAS Accreditation Criteria for Testing Laboratories (AC89), has demonstrated compliance

with ISO/IEC Standard 17025:2005, General requirements for the competence of testing and calibration laboratories, and has been accredited, commencing August 25, 2016, for the test methods listed in the approved scope of accreditation.

(See laboratory’s scope of accreditation for fields of testing and accredited test methods.)

This accreditation certificate supersedes any IAS accreditation bearing an earlier effective date. The certificate becomes invalid upon suspension, cancellation or revocation of accreditation. See http://iasonline.org/More/search.html for current accreditation information, or contact IAS at 562-364-8201.

C.P. Ramani, P.E., C.B.O President

Page 2 of 2

TL-461, Dynamic Certification Laboratories

IAS Accreditation Number TL-461

Accredited Entity Dynamic Certification Laboratories

Address 1315 Greg Street, Suite 109

Sparks, Nevada, 89431

Contact Name Kelly Laplace, Quality Manager

Telephone 775-358-5085

Effective Date of Scope August 25, 2016

Accreditation Standard ISO/IEC 17025:2005

FIELDS

OF

TESTING

ACCREDITED TEST METHODS

Dynamic Testing AC156: Acceptance Criteria for Seismic Certification by Shake-Table

Testing of Non-structural Components

Test methods referenced in Section 6.0 (Seismic Certification Test

Procedure) of ICC-ES Acceptance Criteria AC156 - Acceptance Criteria for

Seismic Certification by Shake-Table Testing of Non-structural Components

GR-63 CORE: Nebs Requirements: Physical Protection

Section 5.4.1 - Earthquake Test Methods (excluding Section 5.4.1.4 Static

Test Procedure)

Section 5.4.2 - Office Vibration Test Procedure


64/64

END OF REPORT

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