Unit 1 Main Generator Seal Oil system Flashcards

1
Q

What is the normal operating pressure of the Unit 1 Main Generator Seal Oil system?

A

130#

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2
Q

What is the purpose of the Unit 1 Main Generator Seal oil System Recirculation pump?

A

Pumps oil from the Seal oil tank back to the top through spray nozzles to help remove Hydrogen from the oil.

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3
Q

What is the auto start of Unit 1 DC emergency seal oil pump?

A

125#

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4
Q

What is the purpose of the seal oil vacuum pump?

A

To remove gases from the top of the seal oil tank.

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5
Q

As Unit 1 seal oil header pressure lowers what is the order of supply?

A

Normal AC main seal oil pump.
DC Emergency seal oil pump @125#.
If turbine is in-service then the main turbine shaft driven oil pump would supply oil at 120#.
If the turbine is not in-service the seal oil would be supplied by the lift oil pumps via the bearing supply header.

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6
Q

If you start the Main AC seal oil pump what will also happen?

A

The recirculation pump will start as they are controlled the same switch.

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7
Q

How many seal oil cuno filters are in-service on unit 1?

A

Always 2 there is no isolation valves.

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8
Q

What is the max DP on the Unit 1 seal oil filters?

A

9#

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