635 Loss of Compressor (65-EOP-5002)

Question 1

CCR - 1.1.1 - REDUCE feed rate to minimum once the compressor shuts down

Answer 1

CCR - 1.1.2 - ENSURE the 635F0001, Reactor Heater SIS has activated isolating the fuel gas to the burners.
- CLOSE burner isolation valves at the heater

Question 2

CCR/OPER - 1.1.3 - ENSURE permissives and alarms on Hydrogen (H2) Make-Up & Recycle Compressors (635C0001 A/B), are clear:

Answer 2

OPER - 1.1.4 - IF the cause of the shutdown can be resolved within 10 minutes of the compressor shutdown
PERFORM the following:

A - CORRECT the issues that caused the compressor shutdown.

B - DECREASE set point on 635 Unit Pressure Controller (65PC0401), by ~40 psig

C - ATTEMPT to START the affected H2 Make-up & Recycle Compressor or START the Spare H2 Make-up & Recycle Compressor in accordance with 65-SOP-2015, Compressor Operation/Maintenance procedure

D - PLACE heater burners back in service

Question 3

CCR/OPER - 1.1.5 - NOTIFY Oil Movements to place 635 into an Off Test Tank

Answer 3

OPER - 1.1.6 - IF the cause of the compressor shutdown cannot be resolved within 10 minutes of the compressor shutdown or the compressor will not start, REMOVE the Feed Pump from service.

Question 4

OPER - 1.1.7 - IF both H2 Make-Up & Recycle Compressors will NOT start, SHUTDOWN 635 Unit in accordance with 65-EOP-5001, Emergency Shutdown Procedure

Answer 4

CCR - 1.1.8 - IF H2 Make-Up & Recycle Compressor is in 633 Unit Service, REDUCE rates in 633 Unit as needed until H2 Make-Up & Recycle Compressor is Restarted

Question 5

1.2 Complete Supplemental Actions