ML18079A323

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Forwards Excerpts from Wyle Labs Seismic Qualification Test Repts
ML18079A323
Person / Time
Site: Salem PSEG icon.png
Issue date: 05/23/1979
From: Mittl R
Public Service Enterprise Group
To: Parr O
Office of Nuclear Reactor Regulation
References
NUDOCS 7905250415
Download: ML18079A323 (30)
v • d • e


Text

PS~G I

Public Service Electric and Gas Company 80 ~ark Place Newark, N.J. 07101 Phone 201 /430-7000 May 23, l979 Director of Nuclear Reactor Regulation

u. SQ Nuclear Regulatory Commission W~shington, D. t.

20555 Attention:

Gentlemen:

Mr. Olan D. Parr, Chief Light Water Reactors Branch 3 D1vision of Project Management RESPONSE TO REQUESTS FOR ADDITIONAL INFORMATION NO. 2 UNIT SALEM NUCLEAR GENERATING STATION DOCKET NO. 50-311 Public Service Electric and Gas Company hereby submits eight (8) copies of excerpts from Wyle Laboratories Seismic Qualification Test Report Nos. 43815-1 and 44079-1, which are applicable to Salem's 600 Volt switchgear.

The information being transmitted is a result of the Seismic Qualification Review Team~s request for additional information during an audit meeting held at the Salem site on February 26 thru 28, 1979 and a subsequent meeting on May 9, 1979 at Bethesda, Maryland.

These reports are being submitted as supplement information to the original ITE Seismic Test Report NO. R.:...8792..

Should you have any questions, please do not hesitate to contact us.

~

79052504\\.J Enclosure The Energy People

!f:!iliT R *. L. Mittl General Manager -

Licensing and Environment Engineering and Construction 95-2001 (400M) 9-77

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SALEM NUCLEAR GENERATING STATION UNIT NO. 2 NRC SEISMIC QUALIFICATION REVIEW RESPONSES TO ADDITIONAL INFORMATION REQUEST The NRC Seismic Qualification Review Team met with Public Service personnel at the Salem site on February 26th thru February 28th, 1979 to conduct the review of the seismic qualification for equipment used at Salem.

As a result of that meeting, and a subsequent meeting on May 9, 1979 at Bethesda, Maryland, attached are excerpts from Wyle Laboratories' Report Nos. 43815-1 and 44079-1 which are applicable to Salem's 600 Volt switchgear.

These reports are submitted as supplemental information to the original ITE Test Report No. R-8792.

Based on a review of these supplemental test reports at the May 9, 1979 meeting, the following areas of concern were identified.

Responses to these concerns are as follows:

600 VOLTS SWITCHGEAR

a.

AREAS OF CONCERN:

It was noted that in both tests the summary table of the Electrical monitoring results indicated relay chatter.

Provide justification why such chatter is acceptable for the Salem Design.

RESPONSE

The design of the 600 Volt vital switchgear used at Salem does not use switchgear mounted relays.

'fll.ere-fore, the relay chatter indicated in Wyle Test Reports Nos. 43815-1 and 44079-1 is not applicable to the Salem design.

b.

AREA OF CONCERN:

In reviewing the subject Wyle test reports *it did not appear that the test specimens were tested with circuit breakers in the open position.

Provide justification and/or explanation why this is acceptable.

Cont'd * *

  • I..

1...

NRC SEISMIC QUALIFICATION REVIEW RESPONSES TO ADDITIONAL INFORMATION REQUEST (CONT'D.)

RESPONSE

In both tests, the test specimen was tested in two electrical conditions as follows:

TEST NO. 43815-1 (a)

Static Operation (Breakers Closed)

{b)

Dynamic Operation (Breakers Trip-Closed-Faulted)

TEST NO. 44079-1 (a)

Static Operation (Breakers Closed)

{b)

Dynamic Operation (Breakers Closed - Trip)

From Table II "Electrical Monitoring Description", of both test reports, it can be seen that during the dynamic operating condition the breakers were subjected to testing in the electrically open condition.

It is felt that testing under such dynamic conditions is a more severe condition than testing under a static open condition.

Also, in Test Report No. 44079-1 the breaker, while initially closed, was tripped and remained in the open tripped condition without functional compromise.

Based on the dynamic operating test, we believe sufficient assurance is present to show that a design basis seismic event will not effect the 600 Volt switchgear circuit breakers in the open position.

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Attachaen ta

e SEISMIC SIMULATION Test Report REPORT NO. __

4_3_9_1_5-_1 ____ _

43815 WYLE JOB NO. --------~

CUSTOMER J-78586-C

~O.NO. ______ ~----~--~~

PAGE 1 OF __

l 9_o ___ PAGE REPORT DATE December 2B, 1977 See References SPECIFICATION (S) in Section 7.0 lo CUSTOMER Gould, Inc., Switchgear Division

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ADDRESS ___

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2.0 TEST SPECIMEN A Four-Frame Lineup of K-Line Low Voltaqe Switchqear 3.0. MANUFACTURER Gould, Inc.

4.0

SUMMARY

A Four-Frame Lineup of K-Line Low Voltage Switchgear containing K-1600-S, X-600-S and K-600-0D breakers, hereinafter called the specimen, was subjected to a Seismic Simulation Test Proqram as required by the Gould, Inc., Purchase Order Number J-7~:J86-C, and Wyle Laboratories' Seismic Test ::'lan 541/6729/ES, dated October 8, 1977, Revision A.

It was demonstrated that the specimen possessed sufficient inteqrity to withstand, without compromise of structure, the prescribed simulated seismic environment.

Contact chatter was experienced, as described in Paraqraph 6.6.l and Table I, durinq the prescribed simulated seimsic environment.

STATE OF ALABAMA l

COUNTY OF MADISON f u.

Ala. Professional Eng.

License No. 7112 William W. Holbrook

  • being duly sworn, d*POMs and says: The information conuined ir> mis raport is thir result of C°"'plete and carefully conducted tnu and is to th* bast of h~ lr.nowledg9 1rue end correct in all r 9,8 APPROVED BY WYLEO.A.

WYLE l.ABORl(IOIGES SCIENTIFIC SERVICES ANO SYSTEMS GROUP

WY1.E LABORAIORIES PAGE No. ___

5 ______ _

43815-1 SCIENTI~IC SERVICES ANO SYSTI:MS GROUP REPORT NO.. ~--~~---~~-

6.0 TEST PROCEDURES AND RESULTS 6.l Specimen Mounting and Orientation Procedures A Four-Frame Lineup of ~-Line Low Voltage Switchgear containing K-1600-s, K-600-S and K-600-00 breakers was placed on the Wyle Multia.xis Seismic Simula.tor '!'able such that the base of the specimen was flush with the top of the test table.

The specimen was welded to the test table in aach test orianta.tion using fillet welds approximately two inches in length at each mounting bolt location as shown in Photoqraph 4.

Also, the door screws in the specimen were torqued to approximately six (6) foct-pouncls.

The specimen mounting simulated the in-service mou.'"ltinq confiquraticn as closely as practical.

The specimen was initially installed in the front-to-back and vertical (FB/V) test orientation as shown in Photoqraph s.

For the second axis of tests, t.'le specimen was rotated 90 degrees in the horizontal. plane to the side-to-side and vertical (SS/V) test orientation.

Op~n completion of qualification testing in the SS/V axis, a Gould-C.esigned, Wyle-fabricated, diagonal brace support was attached to the top left side of Frame 1 as shown in Photograph 6.

'l'he brace support was welded to the specimen and to the test table.

6.2 Resonant Searcn Procedures 6.2.l A low-level (approximately 0.2 q) biaxial sine sweep was performed in the front-to-back/vertical and the side~to-side/vertical orientations.

A SS/V orientation resonant search was also performed with the cUaqonal brace installed. '!'he frequency range of the sine sweeps was from l Hz to SO Hz at a sweep rate of one octave per mim:te.

Resonant Search Results Table I contains a description of the test runs.

'l'ransmissibility plots of the specimen response accelerometers from the qualification resonant search test in each orientation (Tests 1 and 2) are contained in Appendix I.

Ap?endix I also contains Customer-selected transmissibility plots frorr.

the resonant search (Test 18) with the diagonal brace i.~stallee.

111 f;"

Ml.E LABOR1'1UIGES PA90. ____

0 _____

SCIENTIFIC SERVICES AN 0 SYSTEMS GROUP REPORT N0., __ 4

__ 3_e_1_s_-_1 __ _

6a0 TEST PROCE:ot7RES AND ~StJLTS (Continued) 6.3 Multifreguency Test Procedures 6.3.l The specimen was subjected to 30-second duration simultaneous horizontal and vertical inputs of phase-incoherent random waveform motion consisting of frequency bandwidths sP&ced one-third octave aoart over the frequency ranqe of l.O Hz to SO Bz a.s necessary to envelope the Required Response Spectra (RRS).

~e amplitude of each one-third octave frequency was independently adjusted in each axis until the 'l'ast Response Spectra (':RS) enveloped the RRS within 1:he limitations of the test machine.

'l'he resul tinq table motion was analyzed by a spectrmr analyzer at S\\ damping, ar.d plotted 'at one-third octave frequency intervals over the frequency ranqe of interest.

Five (5) Operating Basis Earthquake (OBE) tests were applied to the specimen prior to application of a Safe Shutdown Earthquake (SSE) test in each test orientation. Opon completion of the qualification testing, additional mul.tifrequency tests at the discretion of the Gould 'l'echnical Representative were performed in the SS/V orientation with the d.iaqonal.

brace installed~ 'l'he Zero Period Acceleration (ZPA) as well as other areas of the RRS were exceeded in order to meet the peak response of the

~--ves. 'rhe OBE RRS are shown in Figures l and 2.

'l'he SSE RRS are shown in Figures 3 and 4.

Multifreguenc:y Test Results

!t was demonstrated that the specimen possessed sufficient integrity to withstanC., without compromise of structure, the prescribed simulated seismic environment.

T~le I contains a description of the test runs.

TRS plots cf th~ control accelerometers from the SSE tests in each orientation (Tests 10, 17, 19 and 20) at dampinqs of O.S, 1, 2, :; and 5 percent are contained in Appendix II.

6.4 Specimen Response Procedures A total of twenty-two (22) piezo-electric accelerometers were located on the specimen as shown in Photographs 7 throuqh 20.

'l'ha placement of the accelerometers Wa.s at the discretion of the Goulc! Technical Represen-tative.

FM tape and oscilloqraph recorders provided a record of each accelerometer response.

'l'he horizontal accelerometers were oriented in th& front-to-back clire=tion durinq the front-to-back/vertical testinc; and re-oriented to the side-to-side direction durinq the* side-tc-side/

vertical tetinq.

However, Accelerometer 10 was oriented vertically while Accelerometers 7, ll and 13 were oriented in the side-to-side direction durinq the side-to-side/verti9al testinq.

I WvtE LAB.....,O._...RAIURIES PAGEN~*----'------

SCIENTIFIC SERVICES ANO SYSTEMS GROUP REPORT N0 *. ___

4_3;.;;;e_1_s_-_1 __

6.0 6.4.. l TEST PROCEDURES AND RESULTS (Continued)

Specimen Response Results

-.rransmissibility plots of the specimen response accelerometers from the qualification resonant search test in each orientation (Tests l and 2) are contained in Append.ix I.

Appendix I also contains CUstomer-selected transmissibility plots from the resonant search ('l'est 18) with the diaqonal brace installed.

'!'RS plots of the specimen response accelerometers from the qua.lif ication SSE tests ('l'ests 10 and 17) in each orientation are contained in Appendix II.

Appe."'ldix II also contains Customer-selected 'l'RS plots from t."'ie SSE tests (Tests 19 and 20) with the diaqonal brace installed.

6.5 Electrical Powering Procedures 6.6 125 voe at 30 amperes or less was provided for operation of the specimen during the test proqra.m.

Additionally~ two (2) AC current sources of 60 Bz at 0.5 ampere and S amperes were provided by Wyle.

A 14-VAC tra."lS:former was provided by Gould.

Electrical Monitoring Procedures Fifty-five (55) chan."'lels of electrical monitorinq were recorded on oscilloqraph recorders durinq t,.;e test program as described in Table II.

These channels were used to ascertain electrical continuity, current/

voltaqe levels, spurious operation, contact chatter, tiJninq of relay operation, etc. before, durinq and after the seismic excitation. Addi-tionally, sixteen (16) of the electrical channels were monitored on a chatter detector calibrated tc detect contact chatter qreater than two

(~) milliseconds.

The specimen was tested in two electrical conditions, as follows:

a)

Static Operation (breakers closed) b)

Dynamic Ope.ration (breakers tripped-closed-faulted).

~-.

8 PAGE NO.*----------------~

REPORTN0. ___

4_J_a1_s_-_1 __ ~---

WYLE*LABOR1'ilidES SCIENTIFIC SERVICES ANO SYSTEMS GROUP 6.0 6.6.l TEST PROCEDUXE:S AND RESULTS (Continued)

Electrical Monitorinq Results It was demonstrated that the specimen possessed sufficient electric:a.l integrity to withstand the prescribed simulated seismic environment except as noted in Paragraphs 6.6.l.l and 6.6.1.2.

Table I contains a description of the test runs* and the electrical monitoring results.

Table II contains a description of the electric&l monitorinq channels.

The osci!loqraph records of the electrical monitoring c:bmlnels were furnished to Gould for their ev&luation.

6.6.l.l gualification Electrical Monitorin~ Results 6.6.!.:2 Contact chatter was noted on Monitor Channels 7 and 35 in the F-'B/V axis and on Monitor Channels 27 and 35 in the S-S/V axis during the qualification testinq a.s descriped in Tab' e ~. - **Mditiona.lly, Monit.or Channel 34 picked up durinq the qualification SSE test in the S-S/V a.xis as described in 'l'&ble I.

Additional Testin9 with Oiaqonal Brace Suppcrt Electrical MonitorL~g Results Contact chatter was ilOted on Monitor Channels 7, 14, 26, 27, 29, and 35 du.ring the increased level*testinq as described in 'l'a.ble I. Also, Monitor Channel 34 picked up du:inq the increased level testing as described in Table I.

It was noted that Monitor Chan.'lel 36 did not operate ~urinq the acidi-tional testing. Post-test inspection revealed that the monitor circuit for Channel 36 was open.

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JtaDdom 6

Ramcm R.andCllll 8

ll&rldom 9

R&:XICllll 10 Jl&Ddl::lm 11 1:::-*

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15 I R&ndom 16 Rand cm 17 R&ndcm 18 Sine s-ep 19 R&ndcm 20 R&ndCllll e

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'!ZST RON DESCRIP'l'IORS AND ZLEC'l'RIOI. tarn'CllRG JIEStJL'rS JllPUT

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ZLZCTJUOL AXIS LEVEL BZPA VZPA CORl:lrrION DZSCRIPTIOR P-B/V -

0.2 0.2 A

r-B/V

<DBE 0.69 0.36

'P-B/V

<OBE 0.86 0~69 A

'P-B/V QBE

  • o.85 0.9 F-B/V OE o.as o*.89 I

P-8/V CllE 0.86 0.9 A

P-9/V cm:

0.88 0.86 I.

r-1/V OE 0.9 0.86 I

Cbattar - Monitor Channel 35.

'P-B/V

<SSE 1.1 1.3 Cbatur - lbz1itcr CbanMlS 1 and 35.

P-B/V SSE 1.2 1.1 Cbattar - Jlon.itor Ownnela 1 aDd lS1 OwnmJ 34 picked up 4urinq :11:1m.

s-stv -

0.2 0.2 A

S-S/V cm:

0.72 o. 76 A

llo data keel. lie. 7.. faulty ~e.

s-stv CBE 0.72 0.76 I.

S-S/V QBE c.68 0.75 I.

s-stv 03E 0.7 o.78 Cbatur - lton.itcr Cbanntl 35.

s-s/V cm:

o.s 0.92 A

s-stv SSE 1.0 1.5 I

Owtter - Monitor Cbannal* 27 am 351 c::ba=el 34 picked up c!urlnq run.

s-stv -

C.2 0.2 A

Pre-tHt: Inst&lled c!iaqonal support brec:e to leh sic!e of Frame l (see Photo. 6). lmoVed. *eal-in hmction on

- cn.c. 14) c4 (K.C. 26) located Frame l front - CcllllPan:.ent A.

Po*t-test: Jitlmiovec! *aal-in function on (M.c. 29) locauc! Pr.-

~ fron~ - ~t A.

  • s-stv SSE l.l 1.6 Pault *iqne..l. only.

c:batter - Monitor Cbannels 14, 26, 27, 29 &nd 35: Channel 34 picked 'UPJ Clw:Del J6 4ic! not operate.

S-S/V SSE l.9 1.7 I

Owtter - Monitor c:ba::lnel* 7, 14, 26, 27, 29 and 351 Olal:lnel 34 picked up: Channel l6 clic! !let operate. Po*t-test inspect.ior. revealed 111C1n.itcr circuit for Channel 36 wu open.

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  • Pro:it-to-Baclt and Vertical s-stv
  • Side-to-Side and Vertical OBE Operatinq Basis Z&rtbqu&ke SSE Safe Shutc!own Earthquake BZPA Horizontal Zero PuJ.oc! Acceleration

'VZPA Vertical zero Period Accaluat.i=

I. * *Static Operation <M'uJcen cloMC!l B

Dynamic Clperat.i.on (breaker* trippec!-cloHd-faultec!l

TABLE II ELECTRICAL MONITORINq.DESCRIPTION Electrical Monitoring Circuits M/C C/D Device Catalog B/M Elect. Cond. Pulse Code No.

No.

Description Type Mf gr Number Pc.

Location*

A B

Output 1

'Timing Pulse 0

0-1-0-1-0-1-0 N/O 2

Pwr. Bkr.

(~B Pole)

K-Line IS Kl600S 111 1-B(Nl) 0 1-0-1-0 N/0 3

Pwr. Bkr. (52S/a)

K-Line IS Kl600S 111 1-B(Nl) 0 1-0-1-0 N/O 4

Pwr. Bkr. (52S/b)

K-Line IS Kl600S 111 1-B(Nl) 1 0-1-0-1 N/C 5

Pwr. akr, (r)

K-Line IS Kl600S

.111 1-B(Nl) 0 0-1 N/O H 6

7 Undervoltage Relay 146 1-IC(A) 1 1-0 N/O 7

Undervoltage Relay 146 1-IC(A) 0 0-1 N/C 8

Pwr. Bkr. (52S/a)

K-Line IS K600S 115 2-B(Nl) 0 1-0-1-0 N/O 9

Pwr. Bkr. (52S/b)

K-Line IS K600S 115 2-B(N3) 1 0-1-0-1 N/C

'.0 Pwr. Bkr *. ('QB Pole)

K-Lin~ IS K600S 115 2-B(Nl) 0 1-0-1-0 N/O.

.1 Auxiliary Relay 147 2-IC(A) 0 0-1 N/O.

2 9

Auxiliary Relay 147 2-IC-(A) 1 1-0 N/C 3

Timing Pulse 0

0~1-0-1-0-1-0 N/O

~

3 Undervoltage Relay 154 1-FP(A) 0 0-1 SI

)

Time Delay Relay 143 1-IC(A) 0 0-1 N/O 6

Ti.me Delay Relay 143 1-IC(A) 1 1-0 N/C

Pwr. Bkr. (52S/a)

K..;.Line IS K600 OD 3-B(N6) 0 1-0-1-0 N/O

-- ---L

.. ~Pwr. Bkr. (52S/b)

K-Line IS K600 OD 3-B(N6) 1 0-1-0-1 N/C Pwr. Bkr.

(~B Pole)

K-Linf'~ IS K600 OD 3-B(N6) 0 1-0-1-0 NIO

i. e TABLE II (Cohtinued)

Electrical MonitorJns Circuits 1/c C/D Device Catalog B/M Elect. Cond. Pulse Code*

. o.

No.

Description Type Mf gr Number Pc.

Location A

B Output zo Auxiliary Relay 149 4-IC 0

0-1 N/O

>1 Latch Relay 150 4-IC 0

1-0-1 N/O 2

Lockout Relay 138 1-RP(A) 1 0-1-0 N/O 3

Lockout Relay 138 1-RP(A) 0 1-0-1 N/C 4

Overcurrent Relay 137 1:-RP(A) 0 0-1 SCR 5

Timing Pulse 0

0-1-0-1-0-1-0 N/O 6

1 Overcurrent Relay 135 1-PP(A)*

0 0-1 SI 1

2 Overcurrent Relay 136 l"'.'FP(D) 0 0-1 SI

~

Time belay Relay 141 1-IC(A)*

0 0-1.

N/C

~

8 Overcurrent Relay 136 2-FP(A) 0 0-1 SI a

Time Delay Relay 143 3-IC(A) 0 0-1 N/O 10 Auxiliary Relay 149 4-IC 1

1-0 H/C 11 Latch Relay 150 4-IC 1

0-1-0 N/C 12 Overcurrent Relay 1-RP(C) 0 0-1 SI 13 Overcurrent Relay 1-RP(C) 0 0

N/O H 14 Undervoltage Relay 1-RP(C).

0 0-1 N/O H 15** ~Jndervoltage Relay 1-RP(C) 0 0-1 N/O i--

Timing Pulse 0

0-1-0-1-0-1-0 N/O Pwr. Bkr. (52S/a)

K-Line IS K600S 11, l-C(N2}

0 1-0-1-0 N/O

I I

TABLE It (Continued)

Electrical Monitoring Circuits H/C C/D Device Catalog B/H Elect. Cond. Pulse Code No.

No.

Description Type Hf gr Number Pc.

Location A

B Output 39 Pwr. Bkr. (52S/b).

K-line IS K600S 115 l-C(N2) 1 0-1-0-1 N/C 40 5

Time Delay Relay 141. 1-IC(A) 1 1-0.

N/O 41 f>wt'. Bkr. (52S/a)

K-Line IS K600S 113 2-C(N4) 0 1-0-1-0 N/O 42 Pwl:'. Bkr. (52S/b)

K-Line IS K600S 113 2-C(N4)

  • 1 0-1-0-1 N/C 43 Pwr. Bkr. (t)

K-Line IS.

K600S 1)-3 2-C(N4) 0 0-1-0 N/O H 44 Pvr. Bkr.

(52S/a)

K-Line IS K600S 112 2-D(NS) 0 1-0-1-0 N/O 45 Pwr. Bkr. (52S/b)

K-Line lS K600S 112 2-D(NS) 1 0-1-0-1 N/C 46 Pwr. Bkr. (S2S/a)

K-Line IS

.K600S 114 3-C(N7) 0 1-0-1-0 N/O 47 Pwr. Bkr. (52S/b)

K-Line IS K600S 114 3-C(N7) 1 0-1-0-1 N/O 48 Time Delay Relay 143 3-IC(A) 1 1-0 N/C 49 Timing Pulse 0

0-1-0-1-0-1-0 N/O 50 4

Cell Switch 170 1-B(Hl) 1 1

N/O 51 Pwr. Bkr. (529/a)

K-Line 1s*

K600S 116 3-D(N8) 0 1-0-1-0 N/O 52 Pwr. Bkr. (52S/b)

K-Line IS K600S 116 l-D(N8) 1 0-1-0-1

!f/c 53 Lockout Relay 1-RP(B) 1 1

N/C 54 Mlcroewitch 1-IC(A) 0 o*

N/O ss* 16 Hicroewitch 1-IC(A) 1 1

N/C 2-FP(A)

I Control Switch I

'If frequency (Ha)

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SEISMIC SIMULATION Test Report REPORT NO. ___

44_o_7_9_-l ____ ~

WYLE JOB NO. __

44_o_7_9 ____

CUSTOMER J-84923-C

~o.No. __________ ~~~--~

PAGE 1 OF ---=11-..S ___ PAGE REPOR D'ATE July 13 I. 1978 SPECIFICATION (S) __ s_e_e_Re_f_er_* en_c_es __

in Section 7.0 Gould, Inc., Switchgear Division 1.0 CUSTOMER ____

ADDRE$$ ________

s_o_1_o_f_f_i_c_e __

c_en_t_er

___ D_r_i_v_e_,_P_o_rt w_a_sh_i_n_qto

___ n_,_P_e_nn

__ sy

__ l_v_ani a_1_9_o_J_4 ______ __

2.0 TEST SPECIMEN ____ A_'l'Wo-P_r_am_e_Lin e_up_o_f_Low

__ v_o_l_ta_ge_Sw_i_t_ch_g_e_ar __________ _

3.0 MANUFACTURER ___

Go_u_l_d_, _I_n_c_*-----------------------

4.0

SUMMARY

  • A Two-Frame Lineup of Low Voltage Switchgear containing a K-1600 breaker and five (5) K-600 breakers, hereinafter called the specimen, was subjected to a

~*

Seismic Simulation Test Proqram as required by the Gould, _Inc., Purchase Order Numbe~ J-84923-C, and Wyle Laboratories' Seismic Test Plan 541/0400/DK, dated May 15, 1978, Revision A.

'l'he seismic test proqram consisted of resonant search testing and biaxial random

~

qualification. and higher level multifrequency testing in each of two test orienta-tions.* The specimen was instrumented with accelerometers, powered, and monitored for functional operation during the seismic test proqram.

1.::

It was demonstrated that the specimen possessed sufficient integrity to with.stand, without compromise of structure, the prescribed simulated seismic environment, except the post-test inspection revealed that the qround stab of the K-600 circuit breaker located in Breaker Compartment N2 had been bent (aee Paragraph 6.3.1 and Photographs 7 and 8).* Contact chatter was experienced, as described in Paragraph 6.6.1.and 'l'able I, during the prescribed simulated seismic environment.

Ala. Professional Eng.

STATE OF ALABAMA l COUNTY OF MA.DISON

u.

License No. 7112 William w. Holbrook

, being duty -orn, dep0ses end.. ys: The informMiOfl. contained In this repart i1 th* re.ult of APPROVED BY complete end c.refully conducted tests end is to th* best of his knowledge true

  • ~ r in ell r~tl.

.'-tfr SU Notery Public in end f~ th* County of Mediton, Stat* of Alllb*m*.

il

1*

.I

]

]

]

I -

    • --* ----=---*--***~-~-,

wYl.E LABORATORIES PAGE No. _____

5 ____ _

SCIENTIFIC SERVICES ANO SYSTEMS GROUP REPORT N0. __

4_4_0_7_9_-l ___ _

6.0

'l'EST PROCEDURES ANO RESULTS 6.l Specimen Mountinq and Orientation Procedures The specimen was placed on the Wyle Multiaxis Seismic Simulator Table such that the base of the specimen was flush with the top of the test table. The. specimen was welded to the test table in each test orienta-tion usinq fillet welds approximately two inches in lenqth adjacent to the mountinq bolt loca-;ion as shown in Photog"raph 1. Also, the four (4) corner support angJ.es were welded to the test table as shown in Photoqraph 2.

The specimen mounting simulated the in-service mounting configuration as closely as practical.

The specimen was initially installed in the SS/V test orientation as shown in Phot09raph 3.

For the second test orientation, the. specimen was rotated 90 deqrees in the horizontal plane to the FB/V test orien-tation as shown in Photoqraph 4.

The front interior view of the specimen is shown in Photograph 5 and the rear interior view is shown in Photoqraph 6.

6.2 Resonant Search Procedures 6.2.l 6.3 A low-level (approximately 0.2 q) biaxial sine sweep was perfc::med in the SS/V and the FB/V orientations. The frequency range of t.."le sine sweeps was from l Hz to 50 Hz at a sweep rate of one oc:tave per minute.

Resonant Search Results Table I contains a desc:iption of the test runs.

Tra.r.smiss~ility plots of the specimen response accelerometers from the resonant search test in each orientation a.re contained in Appeneix I.

Multifreauency Test Procedures The specimen was subjected to 30-second duration simultaneous horizontal and ver-...ical inputs of phase-incoherent" random waveform motion consisting of frequency bandwidths spaced one-third octave apart over the frequency range of l.O Hz to SO Rz as necessary to envelop the P.RS._

~he amplitude of each one-third octave frequency was independently adjusted ill each

  • axis until the~ enveloped the RP.s within the limitations of the test
  • machine.

The resul tinq table motion was analyzed by a spectxi:m analyzer at 2\\ dampinq for the OBE tests, and 3\\ dampinq for the SSE tests, and plotted at one-third oc:tave !requenc-1 intervals over the frequency ranqe of interest.

1

]

]

1

]

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WYLE *~IORIES PAGE N0. ____

._6 ____ _

REPORT N0. __

4_4_0_79_-_1 ___ _

SCIENTIFIC SERVICES ANO SYSTEMS GROUP 6.0 TEST PROCEDURES AND RESULTS (Continued) 6.3 Multifreguency Test Procedures (Continued) 6.3.l 6.4 6.4.l Five (S) OBE tests were applied to the specimen prior to application of two (2) SSE tests in each test orientation.

In addition, qreater than SSE tests were performed in each test orientation at the discretion of the Gould Technical Representative as described in Table I. The Zero Period Acceleration (ZPA) as well a.s other areas of the RRS were exceeded in order to meet the peak responses of the curves.

The OBE RRS are shown in Fiqures l and 2.

The SSE RRS ~e showr. in Fiqures 3 and 4.

Multifrequency Test Results It was demonstrated that the specimen possessed sufficient inteqrity to withstand, without compromise of.. structure., the prescribed simulat:a~.. -* _.

seismic environment except as follows.

The post-test inspection revealed that the qround st.Ab of the K-600 cirCUit breake£, -1.ocated in Breaker Compartment N2 (bottom of !'rame l), was bent as shown in Photoqraph 7.

Further inspection revea.led*that the mountinq belts for t.~e qround st~ located on the vertical panel of Compartment N2, shown in Photoqraph 8, were loose.

The probable cause of tha bent qround stab on the circuit breaker was a misaliqr.ment with the qround stab on the vertical panel when the breaker was installed for testinq in the FB/V orientation.

Also noted were a few door hinqe pins backed out and the most extreme concil tion (Compa.-tment N2, top hinqe) is shown in Photoqraph 9.

Table I contains a. description of the test runs.

TRS plots of the control accelerometers from the Customer-selected SSE test in ea.ch orientation, at dampinqs of 1/2, l, 2, 3 and.5 percent, are

-contained in Appendix II.

Specimen Response Procedures A total of eleven (11) uniaxial piezo-electric accelerometers were located on the specimen as shown in Photoqraphs 10 throuqh 14. The placement of the accelerometers was *at the discretion of the Gould Technical Representative.

FM tape and oscilloqraph recorders provided a record of each accelerometer response.

The horizontal accelerometers were oriented in the side-to-side direction durinq the SS/V testinq, and re-oriented to the f:ont-to-back direction durinq the FB/V testinc;.

Specimen Response Results Transmissil:>ility plots of the specimen response accelerometers from the resonant search test in each orientation are con:air.ed in Appendix I.

TRS plots of the specimen response -accelerometers from t.~e ___ cus~r-selected SSE test in ea~h orientation are contained in App~ndix iI.

)

I

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'l

_J

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]

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WYlE LASORAltlRIES PAGE N0. ____

7 _____

' SCIENTIFIC SERVICES ANO SYSTEMS GROUP REPORT N0. __

4_4_0_7_9_-1 ___ _

6.0 TEST PROCEDURES AND RESULTS {Continued) 6.5 Electrical Powering Procedures 6.6

. 6.6.l Electrical _power of 125 VDC at 30 amperes or less, and 115 VAC, 60 Bz.,

single-phase, was provided for operation of the specimen durinq the test proqram.

Electrical Monitoring Procedures

'l'wenty-four (24) channels of electrical monitori;tq were recorded on oscilloc;raph recorders during the test program as described in Table II. 'l'hese channels were used to ascertain electrical continuity, spurious ope.ration, contact chatter, timing of relay operation, etc.

before, during and after the seismic excitation. Additionally, ten (10) of the electrical channels were recorded on FM tape, as indicated in Table II, for determination of contact chatter ~eater than two (2) milliseconds.

The specimen was tested in ~ (2) electrical conditions, as followsi

1)

Static Operation (breakers closed)

2)

Dynamic Operation (breakers closed-tripped).

Electrical Monitoring Results It was demonstrated that the speci:nen possessed sufficient electrical integrity to withstand the presc~ibed si:nulated seismic envir1:>nment except as described below:

Contact chatter was noted on Monitor Channels 14, 15, 16, 18, 19, and 23 during testing in the SS/V axis and on Monitor Channels 11, 12, 14, 15, 16, 18, 19, and 23 durins testinq in the FB/V ax!s as indic~ted in the electrical monitcring results des~ribed in Table III.

Table II contains a description of the electrical monitoring channels.

The oscillograph records ot the electrical monitoring channels were furnished to Gould tor their evaluation.

t t

. \\

Pa9e !le. 9 Rapon No. '4079-1 TABLE :::

TEST RUN DESCRIPTIONS IHPO'T ACCELE:RATIOlJ RON (13 l ELECT NO.

TYPE TEST AXZS LEVEL A!l.k.'A vZPA COND.

UMAiU".S l

Sine Sweep SS/V 0.2 0.2 A

2 Random SS/V

<OBE c.e ' 0.83 A I 3

Random SS/V 08£ O.Sl 0.96 A

4 Randoo SS/V OEE 0.7 0.9 A

s Random SS/V OBE 0.69 0.69

!I 6

Random SS/V OH 0.1 0.9 A

7 Random SS/V

.OBE 0.1 0.89 A

8 Random SS/V

<SSE 1.6 2.c A

9 Random SS/V SSE l.85 2.35 A

!.O

~dom SS/V SSE 1.8 2.35 B

l:.

Random SS/V

>SSE 2.1s 2.5 A

12 Random SS/V

>SSE 2.15 2.4 13 Random SS/V

>SS.E 2.0 2.4 A

!4 Random SS/V

>SSE 2.l

~.s A

  • lS Random SS/V

>SSE 2.l 2.5 B

16 Sine Sweep FB/V -

0.2 0.2 A

17 Random F'B/V o:az I 0.62 l.2 A

l8 Random FB/V OBE 0.62 l.lS A

l3 Random FB/V OBE 0.62 l.O B

20 Random FB/V OBE O.-S2 c.9s

.l

  • 21 Random n;v O.BE i O.GS 0.94 A

22 Ra.'\\dom FB/V SS?

l.9 2.s A

23 Random n;v SSE l.7 2.4 B

24 Random P'B/V

>SSE 2.2 2.4 A

  • c: "*

Random n;v

>S$E 2.3 2.4 A

26 Random FB/V

->sSE 2.2 2.4 A

27 a&ndom TS/V

>sSE 2.2 2.4 A

28 Random FB/V

>SSE 2.2 2.4

a 29 aandom F'B/V

>SSE 2.0 2.S A

30 Random FB/V

>SSE 2.0 2.a A

31 Random FB/V

>SSE i.o 2.9 B

  • Post-test IMpect ion:

Bent ground *tab or.

K-iOO ~r*aker located in compartment !>2 (Photo. 7)1 loose gro~

  • tab on vertical panel of compartment N2 (Photc 8)1 and a few door hinge pins bad oacked out (Photo. 9). S~ Para.

6.3.l.

Legend:

SS/V -

Side-to*Sid~/Vertical

'FS/V - Front-tc*iack/Vertical CSE

- Operatins Basis Ea:t.hc;ua.ke SSE

- Sa!e Shutdown Earthquake EZrA - Horizontal Zero Perice Acceleration VZPA - Verti:al Zero Period Accele=a~i~~- ___ _

A

~.-s~.;-

1., _ _J

.I* *. * * '

~* **~\\

I L.... ~

~ '

LJ l " ****l Table II ELECTRICAL MONITORING DESCRIPTION Electrical Monitoring Circuits Elect. Cond. Pulse Code M/C C/U Device Catalog D/M No.

No.

Description 1'ype Mfgr Number Pc.

Location A

B Outpu1 1

Timing Pulse 0

0-1-0-1 2

Pwr. Bkr. Main Pole K-1600 IL Cl236-0002-460-01 1

lF(B)N-1 1

1-0 N/O 3

Pwr. Bkr. 72S/b K-1600 IL C1216-0002-460-01 1

lF(B)N-1 0

0-1 N/C 4

1 Pwr. Bkr. 728/a K-1600 IL Cl236-0002-460-01

  • 1 lF(B)N-1 1

1-0 N/O 5

Pwr. Bkr. Main Pole IC-600 IL Cl226-0002-415-01 6

2F(A)N-J

1.

1-0 N/O 6. Pwr. Bkr. 728/b K-600 IT.

Cl226-0002-415-01 6

2F(A)N-l 0

0-1.

N/C 7

2 Pwr. Bkr. 728/a K-600 IL Cl226-0002-415-01 6

2F(A)N-3 1

1-0

  • ' 'N/O 8

Pwr. Bkr. Main Pole K-600 IL Cl226-0002-312-0l 5

2F(B)N-4 1

1-0 N/O 9

Pwr. Bkr. 72S/b K-600 IL Cl226-0002-312-0l 5

2F(B)N-4 o*

0-1 N/C 10 3

Pvr. Bkr. 72S/a K-600 IL C1226-0002-312-0l 5

2F(B)N-4 1

1-0 N/O 11 Time Delay Relay lF(A) 0 0-1

... **N/C 12 4

Time Delay Relay "lF(A) 1 1-0

,N/O.

1.3 TimlnR Pulse 0

0-1-0-1 14 5

Umtervo.ltage Relay 25 lF(A).

1 1-0 N/O 15 Undervoltage Relaz 25 lF(A) 0 0-1

.... '.!-. N/C 16 6

Time Delay Relay 2R 0

0-1 r N/C 2R 1

1-0 N/O "17 Time Delay Re~dy

~8 7

Ti!!'e Delay Relay 21 lR 1

1-0

. N/C 19 Time Delay Relay 27 lit 0

0-1 N/O

.. --~-..a~-' ""..... ""~~tr 1*111oe in liou of chatter detector.

1... -...... :*.1*:... 1l;"'*

Table II (Continued}

Electrical Monitoring Circuits H/C

  • C/D Device Catalog 8/M Elect. Cond. Pulee Code No.

No.

Description 1'ype Mf gr Number Pc.

tocation A

I 8

Output 20 e Pwr. Bkr. 72H/a K-1600. IL Cl236-0002-460-01 1

lF(B)N-1 1

1 N/O 21 9 Pwr. Bkr. 72H/a K-600 IL C1226-0002-415-0l 6

2F(A)N-3 1

1 N/O 22 10 Pwr. Bkr. 720/a K-600 IL C1226-0002-312-01 5

2F(B)N-4 1

1 N/O 23 IR 0

0 - l N/O 24

'l'A Ill t a..:....... I.

0 0 -

l N/O

~---

  • Recorded on 1na9netio tape in lieu of chatter detector

Run No.

1 2

3 4

5 6

7 8

9 10 11 12 1l 14 15 16 17 18 19 20 21 22 23 24 25 2!;

27 29 29 JO 31 Table III ELECTRICAL MONITORING DESCRIPTION Elect.

Condition 1

2 3

5 6

7 8

A A

A A

B A

A A

A B

A A

A A

D A

A A

II A

A A

II A

A A

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