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| issue date = 07/19/1977
| issue date = 07/19/1977
| title = Forwards LER 77-046/03L-0
| title = Forwards LER 77-046/03L-0
| author name = LIBRIZZI F P
| author name = Librizzi F
| author affiliation = PUBLIC SERVICE ELECTRIC & GAS CO. OF NEW JERSEY
| author affiliation = PUBLIC SERVICE ELECTRIC & GAS CO. OF NEW JERSEY
| addressee name = GRIER B H
| addressee name = Grier B
| addressee affiliation = NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
| addressee affiliation = NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
| docket = 05000272
| docket = 05000272
Line 17: Line 17:


=Text=
=Text=
{{#Wiki_filter:"*. nsWGJG m---Public Service Electric and Gas Company 80 Park Place Newark, N.J. 07101 Phone 2011622-7000 M.r. James P. O'Reilly Director of USNRC Off ice of Inspections and Enforcements Region 1 631 Park Avenue King of Prussia, Pennsylvania 19406  
{{#Wiki_filter:"*.
nsWGJG m-- -   ~-.
Public Service Electric and Gas Company 80 Park Place Newark, N.J. 07101 Phone 2011622-7000 July 19, 1977 M.r. James P. O'Reilly Director of USNRC Off ice of Inspections and Enforcements Region 1 631 Park Avenue King of Prussia, Pennsylvania 19406


==Dear Mr. 0 1 Reilly:==
==Dear Mr. 0 1 Reilly:==
LICENSE NO. DPR-70 DOCKET NO. 50-272 REPORTABLE OCCURRENCE 77-46/03L July 19, 1977 Pursuant to the reouj.reinents of Salem Generatinq Station Unit No. 1 Technical.
 
Spicifi6ations, Section 6.9.1, we are submitting Licensee Event Report for Reportable Occurrence 77-46/03L.
LICENSE NO. DPR-70 DOCKET NO. 50-272 REPORTABLE OCCURRENCE 77-46/03L Pursuant to the reouj.reinents of Salem Generatinq Station Unit No. 1 Technical. Spicifi6ations, Section 6.9.1, we are submitting Licensee Event Report for Reportable Occurrence 77-46/03L.                                   This report is required within thirty (30) days of the occurrence.
This report is required within thirty (30) days of the occurrence.
Sincerely yours, Original Signed I'. P. Libriz?.i F. P. Librizzi General Manager -
CC: Director, Office of Inspection and Enforcement (30 copies) Director, Office of Information and Program Control (3 copies) Sincerely yours, Original Signed I'. P. Libriz?.i F. P. Librizzi General Manager -Electric Production 8001 08() 532 96*2001 :!DOM 10-*,
Electric Production CC:   Director, Office             of Inspection and Enforcement           (30 copies)
\ Report Number: Report Date: Occurrence Date: 77-46/03L 7/12/77 6/28/77 Facility:
Director, Office             of ~anagement Information and           Program Control (3 copies) 8001 08()           532 96*2001 :!DOM 10-*,
Salem Generating Station Public Service Electric & Gas Company Hancocks Bridge, New Jersey 08038 IDENTIFICATION OF OCCURRENCE:
 
Loss of No. 2 Station Power Transformer (Interconnect between offsite transmission network and onsite Class lE) CONDITIONS PRIOR TO OCCURRENCE:
Report Number:       77-46/03L Report Date:        7/12/77
Operational Mode 2, Reactor Power: 10-8 amps DESCRIPTION OF OCCURRENCE:
\
At 1140 hours, during testing of the 1-5, 500kV GCB, the 1-5 breaker* was closed in the test position.
Occurrence Date:    6/28/77 Facility:           Salem Generating Station Public Service Electric & Gas Company Hancocks Bridge, New Jersey 08038 IDENTIFICATION OF OCCURRENCE:
The 1-8, 500kV GCB opcnej as well as the 3-4 and 4-5, 13kV breakers.
Loss of No. 2 Station Power Transformer (Interconnect between offsite transmission network and onsite Class lE)
This action isolated the 500kV Bus Section No. 1 and the 13kV Bus Section No. 4. The F ane G gr0up busses were de-energized and 13 and 14 Reactor Coolant Pumps fed from the G group busses were lost. Technical Specification 3.R.J.l.a was mented and surveillance 4.8.1.1.1.a and 4.8.1.1.2.a.2 was  
CONDITIONS PRIOR TO OCCURRENCE:
* ' At 1320, the 500kV, 1-8 GCB and the 3-4 and 4-5, 13kV brer:J-:ers wsre closed to establish a normal electrical lineup. At 1324, Action ment 3.8.1.l was terminated.
Operational Mode 2, Reactor Power:   10- 8 amps DESCRIPTION OF OCCURRENCE:
At 1140 hours, during testing of the 1-5, 500kV GCB, the 1- 5 breaker*
was closed in the test position. The 1-8, 500kV GCB opcnej as well as the 3-4 and 4-5, 13kV breakers. This action isolated the 500kV Bus Section No. 1 and the 13kV Bus Section No. 4. The F ane G gr0up busses were de-energized and 13 and 14 Reactor Coolant Pumps fed from the Yan~
G group busses were lost. Technical Specification 3.R.J.l.a was implP-mented and surveillance 4.8.1.1.1.a and 4.8.1.1.2.a.2 was co~oleted. *
                                                                  ~
At 1320, the 500kV, 1-8 GCB and the 3-4 and 4-5, 13kV brer:J-:ers wsre n~-
closed to establish a normal electrical lineup. At 1324, Action State-ment 3.8.1.l was terminated.
DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:
DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:
The cause of this event was personnel error. During the testing of the Bus Section 1-5, 500kV breaker, the breaker and ground tion circuit was not tagged out of service. When the 1-5 breaker was closed in the test position, the protective relay ciicuit saw this as a "stuck breaker" and. is.elated the apparent fault. ANALYSIS OF OCCURRENCE:
The cause of this event was personnel error. During the testing of the Bus Section 1-5, 500kV breaker, the breaker f~ilure and ground protec-tion circuit was not tagged out of service. When the 1-5 breaker was closed in the test position, the protective relay ciicuit saw this as a "stuck breaker" and. is.elated the apparent fault.
Technical Action Statement 3.8.1.1.a allows 72 hours to restore an inoperable offsite circuit to operable status. The No. 2 Station Power transformer was restored to operable status in 1 hour and 44 minutes, therefore, the Technical Specifications were not violated.
ANALYSIS OF OCCURRENCE:
This event did not cause any personal injury or equipment damage.
Technical S~ecification Action Statement 3.8.1.1.a allows 72 hours to restore an inoperable offsite circuit to operable status. The No. 2 Station Power transformer was restored to operable status in 1 hour and 44 minutes, therefore, the Technical Specifications were not violated.
. , Report No. 77-46/03L e 7/12/77 ,. CORRECTIVE ACTION: The breaker failure and ground protection circuit was tagged out of service for the remainder of the breaker testing. The SOOkV, Bus Section 1-8 breaker and the 13kV, Bus Section 3-4 and 4-5 breakers were reclosed to restore the electrical distribution system to normal. Although the SOOkV breakers are non-safety related, a detailed cedure covering testing of switchyard components is being prepared and should be available by September 1, 1977. FAILURE DATA: Not Applicable.
This event did not cause any personal injury or equipment damage.
Prepared by T. Spencer SORC Meeting No.
 
75-77}}
. , Report No. 77-46/03L e   7/12/77 CORRECTIVE ACTION:
The breaker failure and ground protection circuit was tagged out of service for the remainder of the breaker testing. The SOOkV, Bus Section 1-8 breaker and the 13kV, Bus Section 3-4 and 4-5 breakers were reclosed to restore the electrical distribution system to normal.
Although the SOOkV breakers are non-safety related, a detailed pro-cedure covering testing of switchyard components is being prepared and should be available by September 1, 1977.
FAILURE DATA:
Not Applicable.
Prepared by       T. Spencer
                ~~~__:._~~.:..,.__~~~~
SORC Meeting No.       75-77
                      ~~~~~~~~-}}

Latest revision as of 10:01, 3 February 2020

Forwards LER 77-046/03L-0
ML18081A863
Person / Time
Site: Salem PSEG icon.png
Issue date: 07/19/1977
From: Librizzi F
Public Service Enterprise Group
To: Grier B
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML18081A856 List:
References
NUDOCS 8001080532
Download: ML18081A863 (3)
v • d • e


Text

"*.

nsWGJG m-- - ~-.

Public Service Electric and Gas Company 80 Park Place Newark, N.J. 07101 Phone 2011622-7000 July 19, 1977 M.r. James P. O'Reilly Director of USNRC Off ice of Inspections and Enforcements Region 1 631 Park Avenue King of Prussia, Pennsylvania 19406

Dear Mr. 0 1 Reilly:

LICENSE NO. DPR-70 DOCKET NO. 50-272 REPORTABLE OCCURRENCE 77-46/03L Pursuant to the reouj.reinents of Salem Generatinq Station Unit No. 1 Technical. Spicifi6ations, Section 6.9.1, we are submitting Licensee Event Report for Reportable Occurrence 77-46/03L. This report is required within thirty (30) days of the occurrence.

Sincerely yours, Original Signed I'. P. Libriz?.i F. P. Librizzi General Manager -

Electric Production CC: Director, Office of Inspection and Enforcement (30 copies)

Director, Office of ~anagement Information and Program Control (3 copies) 8001 08() 532 96*2001 :!DOM 10-*,

Report Number: 77-46/03L Report Date: 7/12/77

\

Occurrence Date: 6/28/77 Facility: Salem Generating Station Public Service Electric & Gas Company Hancocks Bridge, New Jersey 08038 IDENTIFICATION OF OCCURRENCE:

Loss of No. 2 Station Power Transformer (Interconnect between offsite transmission network and onsite Class lE)

CONDITIONS PRIOR TO OCCURRENCE:

Operational Mode 2, Reactor Power: 10- 8 amps DESCRIPTION OF OCCURRENCE:

At 1140 hours0.0132 days <br />0.317 hours <br />0.00188 weeks <br />4.3377e-4 months <br />, during testing of the 1-5, 500kV GCB, the 1- 5 breaker*

was closed in the test position. The 1-8, 500kV GCB opcnej as well as the 3-4 and 4-5, 13kV breakers. This action isolated the 500kV Bus Section No. 1 and the 13kV Bus Section No. 4. The F ane G gr0up busses were de-energized and 13 and 14 Reactor Coolant Pumps fed from the Yan~

G group busses were lost. Technical Specification 3.R.J.l.a was implP-mented and surveillance 4.8.1.1.1.a and 4.8.1.1.2.a.2 was co~oleted. *

~

At 1320, the 500kV, 1-8 GCB and the 3-4 and 4-5, 13kV brer:J-:ers wsre n~-

closed to establish a normal electrical lineup. At 1324, Action State-ment 3.8.1.l was terminated.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

The cause of this event was personnel error. During the testing of the Bus Section 1-5, 500kV breaker, the breaker f~ilure and ground protec-tion circuit was not tagged out of service. When the 1-5 breaker was closed in the test position, the protective relay ciicuit saw this as a "stuck breaker" and. is.elated the apparent fault.

ANALYSIS OF OCCURRENCE:

Technical S~ecification Action Statement 3.8.1.1.a allows 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> to restore an inoperable offsite circuit to operable status. The No. 2 Station Power transformer was restored to operable status in 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and 44 minutes, therefore, the Technical Specifications were not violated.

This event did not cause any personal injury or equipment damage.

. , Report No. 77-46/03L e 7/12/77 CORRECTIVE ACTION:

The breaker failure and ground protection circuit was tagged out of service for the remainder of the breaker testing. The SOOkV, Bus Section 1-8 breaker and the 13kV, Bus Section 3-4 and 4-5 breakers were reclosed to restore the electrical distribution system to normal.

Although the SOOkV breakers are non-safety related, a detailed pro-cedure covering testing of switchyard components is being prepared and should be available by September 1, 1977.

FAILURE DATA:

Not Applicable.

Prepared by T. Spencer

~~~__:._~~.:..,.__~~~~

SORC Meeting No. 75-77

~~~~~~~~-

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