Diesel Generators

Question 1

DG Emergency Start Signals

Answer 1

Safety Injection (Starts Unit Specific / Other DGs start from CES)
6.9kv Board Undervoltage
Loss of 125v DC

Question 2

DG Engine Protection (Normal Start)

Answer 2

Low Lube Oil Pressure: 20 pasig
High Jacket Water Temperature: 205 F
Over speed: 1035 rpm

Question 3

DG Generator Protection (Normal Start)

Answer 3

Differential (87)
Phase Balance (46)
Reverse Power (32)
Loss of Field Relay (40)

Question 4

DG Common Emergency Start Protection

Answer 4

Engine Overspeed: 1035 rpm
Differential

Question 5

DG ERCW Supplies

Answer 5

1A and 2A DGs Normal: 1A Header
1A and 2A DGs Alternate: 2B Header
1B and 2B DGs Normal: 1B Header
1B and 2B DGs Alternate: 2A Header