What are the heat loads associated with the EDG intercooler coolant system?
generator end bearings and engine air coolers
What are the heat loads associated with the diesel jacket water cooling system?
cylinder liner jackets, turbochargers, lube oil cooler, governor lube oil cooler
What is the purpose of maintaining a vacuum in the crankcase?
remove combustible vapors from the crankcase
What is one way that the “A” EDG control circuitry is affected, if the “A” EDG fire transfer switches are placed in “LOCAL”?
the “A” EDG is protected from faults in the emergency generator load sequencer
What is the basis for the size of the EDG air start receivers?
five diesel generator starts
A PEO pushes the emergency stop PB at the local panel and the EDG does not trip. What position is the selector switch?
remote only
Which of the following describes the function of the EDG diesel fuel oil Kirk key interlock?
allows powering 3EGF*P1C from the “B” train power supply
“A” EDG is running due to a SI signal. What will shutdown the EDG?
EDG lube oil pressure drops to 40 psig
What EDG sub system ensures that the diesel will start in the required time?
the keep-warm system
What EDG engine trip requires local actions at the diesel in order to be reset?
overspeed
Which of the following will trip the EDG after they have been started by a SI signal?
diesel speed of 580 RPM
The “A” EDG has started due to a SI actuation. What would energize the shutdown relay (SDR)?
diesel overspeed, low lube oil pressure, emergency stop
What three auto diesel trips are always in effect on an emergency start signal?
low lube oil pressure, overspeed, generator primary lockout relay
What situation will energize the EDG shutdown relay under normal and emergency running conditions?
lube oil pressure low
During the EDG alignment for automatic loading sequencing, a procedural step requires verification that the diesel overtip device is reset. How is this verified?
check reset knob fully extended and microswitch contacts not touching
EDG is in remote. What action will stop the engine?
Depress 2 of 2 emergency stop PB on MB8 only
The mechanical section of the EDG governor is designed to perform what?
assume control of the EDG speed if the electrical control system fails
What describes the minimum conditions that will energize the start failure relay on the EDG?
the engine fails to reach 115 RPM in 7 seconds
