345 KV

Question 1

List normal/tripping pressures for low SF6 pressures in bus zones

Answer 1

MEPPI: 57/43#

low pressure causes bus segment isolation

Question 2

List normal/tripping pressure for low pressure SF6 breakers

Answer 2

ITE: 45/30-34#
MEPPI: 86-71#
Trips and Locks out breaker

Question 3

List normal/tripping pressures for high pressure SF6

Answer 3

ITE: 265/230#

Trips and locks out breaker

Question 4

State opening/closing mechanism for SWYD breakers

Answer 4

ITE: Spring Open/ Air close
MEPPI: Spring operated

Question 5

State air system pressure Normal/Lockout

Answer 5

250/225#

Locks out closing

Question 6

State interlock for SWYD breakers 11 and 12

Answer 6

Dispatch can neither open the last breaker nor close the first breaker

Question 7

State locations that SWYD MODs can be operated from

Answer 7

Relay room
Locally
MCB
ECSS (not T-5006 or G-106)

Question 8

State locations that 345kV breakers can be operated from

Answer 8

Relay room
Locally
MCB
ECSS

Question 9

Discuss MCB light indication for SWYD breakers

Answer 9

Red/Green => position (closed/open)
MCB: Red when all three poles closed
MANCHESTER: one pole closed will receive red light (covers safety protection of any phase energized)
Blue => Remote control available
Both MCB or ESCC
Relay room switch is in the remote position

Question 10

Discuss relay room light indication for 345 SWYD breakers

Answer 10

Two Red lights – One for each set of trip coils (Sys #1 & Sys #2)
Means that all 3 poles of the PCB are shut and the 3 trip coils have continuity
One Green light
Means that the all 3 poles of the PCB are open.

Question 11

State T.S. 3.8.1.1 action statement

Answer 11

Perform Surveillance Requirement 4.8.1.1.1.a for the OPERABLE offsite
circuit within 1 hour and at least once per 8 hours thereafter

Question 12

State T.S. 3.8.1.2 requirements

Answer 12

With less than the above minimum required A.C. electrical power sources OPERABLE,
immediately suspend all operations involving CORE ALTERATIONS, positive reactivity
changes, movement of irradiated fuel, or crane operation with loads over the fuel
storage pool, and within 8 hours, depressurize and vent the Reactor Coolant System
through a greater than or equal to 1.58-square-inch vent