Text

206051, Sheet Na, Rev 036, Electrical One Line Diagram 250 125V DC Sys and 120V AC Vital Instru
	ML16130A266
Person / Time
Site:	Crane
Issue date:	04/11/2016
From:	; Exelon Generation Co
To:	; Office of Nuclear Reactor Regulation
Shared Package
ML16127A520	List: ML16127A469; ML16127A471; ML16127A474; ML16127A476; ML16127A477; ML16127A479; ML16127A480; ML16127A481; ML16127A483; ML16127A484; ML16127A485; ML16127A486; ML16127A491; ML16127A492; ML16127A493; ML16127A494; ML16127A495; ML16127A496; ML16127A498; ML16127A499; ML16127A500; ML16127A501; ML16127A502; ML16127A503; ML16127A504; ML16127A506; ML16127A507; ML16127A508; ML16127A510; ML16127A511; ML16127A512; ML16127A513; ML16127A514; ML16127A516; ML16127A517; ML16127A518; ML16127A519; ML16127A521; ML16130A150; ML16130A151; ML16130A152; ML16130A153; ML16130A154; ML16130A155; ML16130A156; ML16130A157; ML16130A158; ML16130A159; ML16130A161; ML16130A162; ... further results
References
	TMI-16-035
	Download: ML16130A266 (1)
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1. ALL KEYS ARE HELD IN LOCKS DURING OPERATION. AS SHOWN.

2. TO PLACE EE-INV-1E INVERTER IN USE IN PLACE OF EE-INV-1A OR EE-INY-1C INVERTERS (USE EE-INV-1E AS S?ARE), THE FOLLOYuiNG SEQUENCE MUST BE FOLLOWED:

A. USING KEY 1, INVERTER EE-INV-IE STATIC SWITCH IS TRANSFERRED MANUALLY TO REGULATED 120 VAC SOURCE. THIS TRANSFER RELEASES NORMALLY HELD KEY 1.

B. KEY 1 IS TAKEN TO INVERTER EE-INV-IE STATIC SWITCH NC SUPPLY BREAKER AND PLACED IN DOUBLE LOCK. TURNING KEY 1 HOLDS KEY 1.

C. NC SUPPLY BREAKER !.lUST BE TRIPPED. TRIPPING NC SUPPLY BREAKER TOGETHER WITH TURNING KEY 1 RELEASES KEY INTERLOCK OF KEY 2.

D. KEY 2 IS TURNED LOCI<;ING NC SUPPLY BREAKER <FEN. KEY 2 IS THEN RELEASED

E. KEY 2 IS THEN TAKEN TO ANY ONE tF THE OTHER TWO INVERTERS (EE-INV-1A OR EE-INV-1C) AND PLACED IN THE CORRESPONDING DOUBLE LOCK. TURNING KEY 2 HOLDS KEY 2.

F. THE NC SUPPLY BREAKER MUST THEN BE TRIPPED. TRIPPING NC BREAKER TOGETHER WITH TURNING KEY 2 RELEASES THE KEY INTERLOCK Of THE OTHER KEY (KEY 5 OR 6). THAT KEY IS TURNED LOCKING ITS NC BREAKER <FEN AND RELEASING THE KEY.

G. KEY 5 OR 6 IS TAKEN TO ITS CORRESPONDING NO BREAKER AND IS USED TO UNLOCK THE BREAKER I'IHICl-1 IS THEN CLOSED, THUS TRANSFERRING THE LOAD OF INVERTER EE-1Nv-1A OR EE-INV-1C ONTO INVERTER EE-INV-1E. KEY 5 OR 6 IS HELD.

3. SWITCHING OFF OF INVERTER EE-INV-1A AUTOMAliCALLY PLACES THE ICS ON TO THE REGULA.TEO AC SOURCE THROUGH INVERTER EE-INV-1A STATIC SWITCH. RETURN OF IN'o'ERTER POWER (EITHER EE-INV-IA OR EE-INV-1E)

WILL AUTOMATICALLY PLACE THE ICS BACK ON THE INVERTER.

4. TO RETURN TO NOR~AL OPERATION, STEPS tiA" THROUGH "G" OF ITEM 2 ARE DONE IN REVERSE ORDER.

INVERlERKEYINTERLOCKSYSTEM USING EE-INV-IF" AS A SPARE

1. ALL KEYS ARE HaD IN LOO<S DURING OPERATION. AS SHOWN.

2. TO PLACE EE-1Nv-1F INVERTER IN USE IN PLACE OF EE-INv-18 OR EE-INV-10 1.N\\o£R1ERS (USE EE-1Nv-1F AS SPARE), THE FOLLOWING SEQUENCE MUST BE FOLLOWED:

A. USING KEY 7, INVERTER EE-INV-1F STATIC SWTCH IS TRANSFERRED MANUALLY TO REGULATED 120 IIAC SOURCE. THIS TRANSFER RELEASES NORMALLY HELO KEY 7.

B. KEY 7 IS TAKEN TO INVERTER EE-INV-1F STATIC SWITCH SUPPLY BREAKER AND PLACED IN DOUBLE LOCK. TURNING KEY 7 HOLOS KEY 7.

C. SUPPL'f"BREAKER MUST BE TRIPPED. TRIPPING SUPPLY BREAKER TOGETHER 'MTH TURNING KEY 7 RELEASES KEY INTERLOCK OF KEY 8.

0. KEY 8 IS TURNED LOCKING SUPPLY BREAKER OPEN. KEY 8 IS THEN RELEASED.

E. KEY a IS THEN TAKEN TO ANY ONE OF THE OTHER TWO INVERTERS (EE-INV-1B OR EE-INV-1tl) AND PI...ACED IN 11-iE CORRESPONDING DOUBLE LOa<. TURNING KEY 8 HOLDS KEY a.

F. THE NC SUPPLY BREAKER J.'IJST THEN BE TRIPPED. TRIPPING NC BREAKER TOGETHER 'MTH TURNING KEY 8 RELEASES THE KEY INTERLOCK 01' THE OTHER KEY (KEY J OR 4). THAT KEY IS TURNED LOCKING ITS NC BREAKER. OPEN AND RELEASING THE KEY.

0. KEY J OR 4 IS TAKEN TO ITS CORRESPONDING NO BREAKER AND IS USED TO UNLOCK THE BREAKER WHICH IS THEN CLOSED, 111US TR#ISFERRJNG THE LOAD Of INVERlER EE-INV-1B OR EE-INV-10 ONTO INVERTER EE-INV-1F. KEY 3 OR 4 IS HB.Il.

3. TO RETURN TO NORMAL OPERATION, STEPS "A" THROUGH "G" tF ITEM 2 ARE DONE IN REVERSE ORDER.

DATE CONSTRUCTION LIMITED CONSTRUCTION: AS NOTED PRELIMINARY NOT FOR CONSTRUCTION BIDDING PURPOSES ONLY RELEASED FOR NETROPCLITAN EDISON COMPANY THREE MlLE ISLAND NUCLEAR. STATION ELECTRICAL CAD FILE: 20605LR36 THIS IS A C:OMPUlER GENERATED ORAW.NG.

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F'ROM IA*SCO*DIESEL

1. ALL KEYS ARE HELD IN LOCKS DURING OPERATION. AS SHOWN.

2. TO PLACE EE-INV-1E INVERTER IN USE IN PLACE OF EE-INV-1A OR EE-INY-1C INVERTERS (USE EE-INV-1E AS S?ARE), THE FOLLOYuiNG SEQUENCE MUST BE FOLLOWED:

A. USING KEY 1, INVERTER EE-INV-IE STATIC SWITCH IS TRANSFERRED MANUALLY TO REGULATED 120 VAC SOURCE. THIS TRANSFER RELEASES NORMALLY HELD KEY 1.

B. KEY 1 IS TAKEN TO INVERTER EE-INV-IE STATIC SWITCH NC SUPPLY BREAKER AND PLACED IN DOUBLE LOCK. TURNING KEY 1 HOLDS KEY 1.

C. NC SUPPLY BREAKER !.lUST BE TRIPPED. TRIPPING NC SUPPLY BREAKER TOGETHER WITH TURNING KEY 1 RELEASES KEY INTERLOCK OF KEY 2.

D. KEY 2 IS TURNED LOCI<;ING NC SUPPLY BREAKER <FEN. KEY 2 IS THEN RELEASED

E. KEY 2 IS THEN TAKEN TO ANY ONE tF THE OTHER TWO INVERTERS (EE-INV-1A OR EE-INV-1C) AND PLACED IN THE CORRESPONDING DOUBLE LOCK. TURNING KEY 2 HOLDS KEY 2.