ML20069M252
| ML20069M252 | |
| Person / Time | |
|---|---|
| Site: | Midland |
| Issue date: | 11/10/1982 |
| From: | Jackie Cook CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, 19088, 82-10, NUDOCS 8211230502 | |
| Download: ML20069M252 (10) | |
Text
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O Consumers Power James W Cook Vice President = Projects, Engineering and Constmetion General Offices: 1945 West Parnell Road, Jockeon, MI 49201 * (617) 788 0453 November 10, 1982 82-10 #1 Mr J G Keppler, Regional Administrator US Nuclear Regulatory Commission Region III 799 Roosevelt Road Glen Ellyn IL 60137 MIDLAND NUCLEAR C0 GENERATION PLANT -
DOCKET NOS 50-329 AND 50-330 UNDERRATED MOTOR CONTROL CENTER CONTROL CURCUIT TRANSFORMERS FILE:
0.4.9.66 SERIAL: 19088 This letter is an f.:erim 50.55(e) report on underrated control circuit transformers suppiled by Gould-Brown Boveri for the 460 volt motor control centers. This was reported to F Lomax of the NRC Bethesda office on October
- 11. 1982. The attachments to this letter provide a description of the deficiency and the corrective action being taken with regard to this matter.
Another report, either interim or final, will be sent on or before January 28, 1983.
h*N WRB/lr Attachments:
(1) Ibnagement Corrective Action Report MCAR-1, Report No 61, dated 10/13/82 (2) MCAR-61 Interin Report 1, dated 10/29/82 CC: Document Control Desk, NRC Washington, DC RJCook, NRC Resident Inspector Midland Nuclear Plant 8211230502 921110 PDR ADOCK 05000329 S
OC1182-0008A-MP01
2 Serial 19088 82-10 #1 CC: CBechhoefer, ASLB Panel RSDecker, ASLB Panel FPCowan, ASLB Panel JHarbour, ASLB Pnnel AS&L Appeal Panel MMCherry, Esq MSinclair BStaniris CRStephens, USNRC WDPaton, Esq USNRC FJKelley, Esq. Attorney Cencral SilFreenan, Esq, Asst Attorney General WilMarshall CJlferritt, Esq, TNK&J Great Lakes QA Managers OC1182-0008A-MP01
cy4 n, 70nAA QUAUTY ASSURANCE PROGRAM 82-10 #1 MANAGEMENT CORRECTIVE ACTION REPORT 89l73 mCARi REPORT NO.:
61 JOB NO.:
7220 ONO.:
DATE:
in/13fg7 i DESCRIPTION * (Including References):
Specification 7220-E-7 Appendix A Section 2.3 requires all control power trans-formers (CPT) to be one size larger than standard with a minimum size of 100 VA.
ITE-Could drawing 7220-E-7-11 also indicates that these transformers are 100 VA.
Contrary to the above, during field modifications of the 460 V class IE MCC's supplied by ITE-Gould it was discovered that 70 size 1 starters had 50 VA transformers. This deficiency was identified on NCR 4509.
RECOMMENDED ACTION' (Optional):
1.
Replace the 50 VA CPIb with 100 VA as required by specification E-7 (Construction) 2.
Inspect all MCC's supplied by ITE-Could to determine that supplied CPT's for all starters are in accordance with specification E-7 (Construction) 3.
Procurement to work with Supplier Quality and ITE-Gould~(vendor) to determine the root e.ause of this problem and provide corrective action to preclude recurrence. This action should be documented and provided to project (con't)
REFERRED TO:
D Engineering O Constructon O QA Management O
E) Procurement ISSUED BY:
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I 11 REPORTABLE DEFICIENCY:
l NOTIFIED CLIENT:
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1 Ill CAUSE:
CORRECTIVE ACTION TAKEN:
AUTHORIZED BY:
o AAPO DeSTneutions PnoJ DeSTneUTiose OTHER DISTneUTion uoR or consrRuction cwirr cousin oc twoR wor or on TPo FORMAL REPORT TO CUENT uoR or cuanttRavo cur =T oPo on uoR (if Sectionil Appi.es)
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MGR or PROCUREMENT ProCE LAPD oA MGR wor or Pao; cPenations Paosect cousin uoR srPo. on wor uoR or ouaufv assurance Pao;ect anoinctR CORRECTIVE ACTION IMPLEMENTED CoNSTnUCTioN MOR PRCuf CT WGR ENGesEf RING MGR PROJ PNMENT MGR SUPPLER ouAUTv MGR SITE toGR of SUPf 8MSon VERIFIED BY
'Desenbe in space provided and attaen reference document.
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Section Number Page of l
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89173 NCAR 61 10/13/82 Page 2 of 2 Recommended Action (con't.)
engineering for inclusion in the MCAR report.
4.
Issue interim report by October 26, 1982.
(Project Engineering) 4
_~ -_.
Serial 19088 Bechtel Associates Professienal Corporation 82-10 s1 092l4I 092289 Management Corrective Action Report (MCAR)
SUBJECT:
MCAR 61 (Issued 10/13/82)
Deficiencies Associated with Gould Supplied 480/120V Control Power Transformers INTERIM REPORT NO. 1 DATE:
October 29, 1982 PROJECT:
Consumers Power Company Midland Plant Units 1 and 2, Bechtel Job 7220 INTRODUCTION:
This report provide interim status and the course of Corrective Action Required Pursuant to MCAR 61.
DESCRIPTION OF DEFICIENCY:
Approximately 70 Size 1 starters have been identified as having 50 VA control power transformers (CPT's). Specification 7220-E-7(Q),
Appendix A, Section 2.3 requires all CPT's to be one size larger than standard with a minimum size of 100 VA.
Could Drawings (Bechtel Vendor Print 7220-E7-11, 12, 13, 19, 20, 25, 26, 27, 28, 29, and 30) also indicate that these CPT's are 100 VA.
SUMMARY
OF INVESTIGATION AND HISTORICAL BACKGROUND:
This deficiency was discovered during field modifications of the Class IE motor control centers (McC's) and was documented in Bechtel NCR 4509.
ANALYSIS OF SAFETY IMPLICATIONS:
An investigation was conducted to determine the effect of using 50 VA CPT's in Size 1 starters assuming minimum utilization voltage on l
the MCC bus. The results indicate that a voltage potentially below the limits for proper operation of the MCC starter coils could I
result.
If this minimum design voltage (414 volts) condition were to occur, Class 1E equipment necessary to safely operate the plant may fail to operate.
PROBABLE CAUSE:
The cause for this deficiency is to be investigated (see Corrective Action Item 3)
CORRECTIVE ACTION:
The recommended corrective actions to resolve this NCAR are as follows:
i
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Bechtel Associates Professional Corporation OS2l4i MCAR 61 092289
'***'i" *ePort 1 Page 2 1.
All 50 VA CPT's are to be replaced with 100 VA CPT's.
The vendor has been contacted to arrange for replacement of the 50 VA "PT's.
2.
All size 1 starters supplied by Gould under Purchase Order 7220-E-7 and 7220-E-34 are to be inspected to determine if the CPT's supplied are in compliance with Specification 7220-E-7, 7220-E-34 and all applicable vendor drawings (see Attachment 1 for locations of these starters). All Class 1E starters Size 2 and larger supplied by Gould under Purchase Order 7220-E-7 will be inspected co assure that the proper size transformers were supplied (see Attachment 2 for the location of these starters).
3.
The vendor has been contacted and requested to determine the root cause of this problem and provide corrective action to prevent recurrence.
REPORTAB 'TY:
Based on the safety implications this deficiency is considered reportable in accordance with Title 10 of the code of Federal Regulation Part 50.55(e).
Submitted by:
e J.G. Kovach '
't Electrical Group Supervisor Approved by:
b u.
M 9.M. Dughes h
Project Engineer Concurrence b :
tbwd/
[/ h 4 m
it.L. Castlebe ry I Electri 1C ef Concurrence by:
w E.H. Smith "
e Engineering Manager l
Concurrence by:
l
[ M.A. Dietrich Project Quality l
G6 Assurance Engineer JGK/SB/se(E) 10/21/1 Attachments:
1.
Location of All Class IE Size 1 Starters Supplied by Gould 2.
Location of All Class 1E Size 2 and Larger Starters Supplied by Gould
~
Bechtel Associates Professional Corporation 092289 092l4; 4t. 3,s,e 1 Page 1 of 2 LOCATION OF ALL CLASS 1E SIZE 1 STARTERS SUPPLIED BY GOULD (CPTs Size 100VA)
MOTOR CONTROL CENTERS:
,M_CC CUBICLE LOCATION 1523 2C, 2D, 2E, 3B, 3D, 4A, 4B, 4D, 4E, 6B, 6C, 6D, 75, 7C, 7D, 8A, 88, 8D, 8E, 9A, 95, 9D, 9E, 10A, 105, 10C, 10E 1524 2C, 2D, 2E, 35, 3D, 4A, 4B, 6B, 6C, 6D, 75, 7C, 7D, 8A, 85, 8C, 8D, 8E, 9A, 95, 9C, 9D, 10A, 105, 10C, 10D, 10E, 11C, 11D 1B53 15, 2A, 3B, 3C 1B54 IB,1D, IE, 35 1855 1D, IE, 2C, 3A, 3B, 3C, 3D, 4A, 4B, 4C, 4D, 5A, 5B, 5C, 5D, 6A, 65, 6C, 6D, 75, 7C, 7D, 8A, 85, 8C, 10A, 105, 100, 10D, 1856 1D, IE, 2A, 2B, 2C, 2D, 3A, 3B, 3C, 3D, 4A, 4B, 4C, 4D, 5B, 5C, 5D, 6A, 6C, 6D, 7A, 75, 7C, 7D, 8A, 85, 8D, 8E, 9A, 95, 11B, 11C 1543 1D, 3C, 3D 1544 1C, ID, IE, 2A, 25, 3A, 3B, 3C IB63 2C IB64 2C 1889 1E, 2C, 2D, 2E 1590 1E, 2C, 2D, 2E 2B23 2C, 2D, 2E, 3B, 3D, 4B, 4D, 4E, 4A, 63, 6C, 6D, 75, 7C, 7D, 8A, 6B, 8C, 8D, 8E, 9A, 95, 9D, 9E, 10A, 105, 10C 2B24 2C, 2D, 2E, 3B, 3D, 4A, 45, 4E, 65, 6C, 6D, 7B, 7C, 7D, 8A, 8B, 8C, 8D, 8E, 9A, 95, 9C, 9D, 10A, 108, 10C, 10D, 10E, 11B, 11C, 11D 1B53 1B, 1D, IE, 2C 2B54 IB, 1C, 2A, 2C, 2D, 3B, 3C 2B55 1D, 1Z, 2B, 2C, 2D, 3A, 3B, 3C, 3D, 4A, 4B, 4C, 4D, 5A, 5B, 5C, 5D, 6A, 6C, 6D, 75, 7C, 8A, 8B, 8D, 9D, 105, 10E
Becht::1 Associates Professional Corporation
'3 9 2 I 4 I 092289 raBe 2 or 2 MCC CUBICLE LOCATION 2B56 1D, IE, 2A, 2B, 2C, 2D, 3A, 3B, 3C, 3D, 4A, 4B, 4C, 4D, 55, SC, SD, 6A, 6C, 6D, 7A, 75, 7C, 7D, 8A, 8D, 8E, 9A, 9C, IOC, 10D, 10E, 11D 2B43 1C, ID, IE 2A, 2B, 3B, 3C 2B44 1C, ID, IE, 2A, 25, 3A, 3B, 3C 0545 1D, 25, 2C, 3A, 3B, 3E, 4A, 4B, 4C, 4D, 5B, 5C, 5D, 6A, 6B, 6C, 7C, 0546 1D, 2B, 2C, 3A, 3B, 3E, 4A, 43, 4C, 4D, 55, 5C, 5D, 6A, 6B, i
2B63 2C 2B64 2C 0865 1D 0566 1D OB68 IB, ID, IE, 25, 2C 0569 13, 1D, IE, 25, 2C 2589 IE, 2C, 2D, 2E l
2B90 1E, 2C, 2D, 2E Note:
This listing is based on Drawings 7220-E-17(Q), Rev 18 and 7220-E-18(Q) Rev 17 LOCAL CONTROL STATIONS INH 03856 2NM03956 INM03893Al INM03893A2 INM03893B1 INM0389352 INM03868A INM03868B 2NM03968A l
2NM03968B l
2NH03993Al l
2NM03993A2 l
2NM03993B1 2NM03993B2 JGK/SB/se(E) l 10/21/1
Bechtel Associates Professional Corporation 092l4I 092289 NU*N"E'2 LOCATION OF ALL CLASS 1E STARTERS SIZE 2 AND LARGER SUPPLIED BY GOULD MOTOR CONTROL CENTERS:
MCC CUBICLE LOCATION Size 2 Starter (100VA).
~
1B23 2B, 3C, 6A, 7A l
1824 2B, 3C, 6A, 7A 1855 2A, 9E, 10E IB56 5A, 10D, 11D 1863 1C, 2B 1864 1C, 2B Size 3 Starters (150VA) 1B53 28, 3A 1854 2D, 3D 2B53 2A, 3A 2B54 2E, 3D 0545 7D Size 4 Starters (250VA) 1B23 1C, 5B 1B24 1C, 5B, 1553 2D, 3D 1854 2A, 3C 1B56 9D 1543 2D 1544 2D 2B23 1C, 5B 2B24 1C, 5B 2B53 2D
Bechtcl Associates Professional Corporation 092l41 092289 Attaen.ent 2 Page 2 of 2 Size 4 Starter 2B54 3A 2856 9D 2B43 2D 0545 6D 2B44 2D 0846 6D Note:
- 1) This listing is based on Drawings 7220-E17(Q),
Rev 18 and 7220-E18(Q), Rev 17.
- 2) There are no Class 1E local control stations with Size 2 or larger starters.
JGK/SB/se(E) 10/21/1
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