ML17338A700

Instructions for Insp & Tests of Lockout Relays

ML17338A700
Person / Time
Site:	Turkey Point
Issue date:	08/15/1979
From:	Renee Taylor FLORIDA POWER & LIGHT CO.
To:
Shared Package
ML17338A699	List: ML17338A698 ML17338A700
References
Q1-5-SP-2.5, NUDOCS 7905140225
Download: ML17338A700 (7)

Text

Ql-5-SP-2.5 RED. 1 DATE E/]E/75 PAGE I of 5 FLORlDA POWER 6 LlGllT COMPANY Change No. I SYSTEN PROTECTI ON GROUP Pages Effected 2 NUCLEAR POWER PLANTS 8 Test Form INSTRUCTIONS FOR INSPECTION 6 TESTS OF LOCKOUT RELAYS

1.0 APPROVAL

Approved by Nanager Syste Protection Date 19 7+

19 ~

Reviewed by Turkey Point Pla Approved by t Nuclear Safety Committee Plant Supt.

June 5, 197%

Revlewe by St. Lucie P nt Nuclear Safety Committee 7

19 Approved by Plant Hgr. JBIJ4'. l6 19 ~.

2.0 PURPOSE

These. instructions will provide guidance in the performance of inspection and test activities on Lockout Relays.

3.0 SCOPE

3.1 Discussion The relays discussed ip this procedure are auxiliary relays used in overall relay protective schertes. The instructions will include pro-cedures for inspection and testing the relays concerned.

3.2 ~Authnrit

1. 10 CFR 50, Appendix B a

2.. Florida Power 6 Light Company Quality Assurance Pro'gram For Nuclear Power Plants.

3.3 Definition Hone 3'.4 Precautions E Prere uisites Before performing any operational tests of the relay and associated circuitry, clearance on the breakers or other devices tripped by the relays must be obtained. Obtaining of clearances and other activities such as the lif'ting of wires which are governed by established plant procedures shall be performed in accordance with those procedures.

V905X40 A@5

QI"5-SP-2.5 I

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~ REV. 0 DATE 8/15/75 PAGE 2 of ~

FLORIDA POWER 6 LIGHT COiIPAHY SYSTEN PROTECTION GROUP NUCLEAR POWER PLANTS INSTRUCTIONS FOR INSPECTION 6 TESTS OF LOCKOUT RELAYS

3.0 SCOPE

3.5 References

1. Turkey Point Units j~3 6 0 Technical Specifications.

2. St. Lucie Plant Unit bI Technical Specifications.

3. General Electric. Instruction Booklet For IIEA61. GEH-2058B.

General Electric Instruction Booklet For ilEA63 HEG-1277.

3.6 Records 8 Notification Form /j SP-LO' 3.7 Equi ment Re uired

. I -Anal yser

~ ~

1-Load Box

4.0 RESPONSIBILITIES

S stem Protection Su ervisor The System Protection Supervisor shall be responsible for seeing that tests and inspections are performed as specified by this procedure. Ile shall determi ne that work completed is acceptable and signify the same by signing and dating the test'eports.

5. 0 I HSTRUCTI OHS:

5.1 Before operating the Lockout Relay, disable tripping to all devices which are not desirable to trip.

5.2 Ilal f Volta e Tri Test 5.2.1 Set up test equipment as in Figure 1.

5-2-2 I",easure the resistance of the trip coil and record it on the test record.

5-2-3 Set Load Box resistance to a valueequal to the resistance of the Lockout Relay.

~ W ~ QI SP-2.5 I

REVE 1 DATE 8/15/75 PAGE 3 of ~

FLORIDA POl/ER f L I GHT COMPANY SYSTEM PROTECTI ON GROUP NUCLEAR POWER PLAN S INSTRUCTIONS FOR INSPECTION 6 TESTS OF LOCKOUT RELAYS

5.0 INSTRUCTIONS

(CONTED.)

5.2 Hal f Volta e Tri Test 5.2 l Close the "S" switch and observe that the Lockout Relay trips. The voltage applied to the Lockout Relay will be half normal battery voltage. Open the "S" switch as quickly as possible so as not to apply a constant voltage to the coil. The relay 'must trip at one half normal DC voltage the first time applied.

5.3 Visual Ins ection 5.3.1 When the Lockout Relay is in the reset position, the nor-mally open contacts will be inspected to be positively open and the normally closed contacts to be positively closed'. Al'I contacts are to b'e checked to have adequate wipe and to make good electrical contact. These contacts will be rei nspected with the Lockout Relay in the tripped position.

5.3-2 The arc suppression circuit shall be visually inspected to be in tact and in working condition.

5.lr Tr i in Test And C Ins ection C Hold oint 5,lr. 1 Caution: Before performing this test, check that proper precautions were taken to insure that no undesirable tripping occurs. The Lockout Relay contacts shall be reconnected as much as practical to insure that undesirable tripping do s not occur. An operational test shall then be per Formed by closing some contact of a protective device which normally operates the relay. The Lockout Relay shall be observed to have good positive action.

5.lf. 2 After the operational test is correctly completed and before releasing the Lockout Relay for service, visually inspect the relay for the following:

l. Foreign matter

2. Foreign jumpers or blocking

3. Connections are tight lr. Test switches closed for normal operation

5. Trip fuses returned to normal i'nservice condition

6. Monitoring light or circuit in service if so equiped.

QI-5-SP-2.5 REll. 1 DATE 8/iE/TE PAGE 4 of ~

FLORIDA POWER 6 LIGHT COI'IPANY SYSTEM PROTECTION GROUP NUCLEAR POI/ER PLANTS INSTRUCTIONS FOR.INSPECTIOI'I 6 TESTS OF LOCKOUT RELAYS

5.0 INSTRUCTIONS

(CONT'D.)

i 5.4 ~Tri in Test And C I ns ection QC Roid oint 5.4e3 Check Test Report to be complete and results to be ulithin acceptab'Ie limits.

5.4s4 After completing these i nspections and finding them to be correct, sign and date the test form'.

5.5 Records Records shall be handled as specified in paragraph 5.7 of QI-17-SP-1 of the System Protection Group Quality Assurance Program..

LOAD BOX

~iSii SMlTCH NORHAL LOCKOUT DC RELAY SUPPLY COlL Fl GURE 1

qdliOUT RELAY, PLANT "TEST REPORT GEN CUBICLE TEST BY DATE'ATE TEST APPROVED TEST DISAPPROVED REFER TO QI-5-SP"2.5 DATE'ROTECTED ZONE

-OR FUNCTION MODEL A NUMBER M D E A COlL P T NUMBER L A A RATED T VOLTS AS FOUND HALF

. VOLTAGE TRIP AS LEFT HALF

'VOLTAGE TRIP

.DC RESISTANCE VISUAL INSPECTION: Contacts: 'Arc Suppression Circuit IDEN. NUMBER EQUIPMENT USED REIRRYiS INSPECTED BY DATE FORM SP;LO

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