HVH/HVG

Question 1

What Rx Pwr are the Aux HXs used for HVH?

Answer 1

0-5% pwr

Question 2

What Rx Pwr are the Intermediate HXs supplied from Aux Steam?

Answer 2

5-70% pwr

Question 3

What Rx Pwr are the Intermediate HXs supplied from Extraction Steam?

Answer 3

70-100% pwr

Question 4

What trips the HVH pumps P1 A/B?

Answer 4

Low discharge pressure (<=220psig, 10sec TD)

Question 5

What are the auto starts for the HVH pumps P1 A/B?

Answer 5

NONE!

Question 6

What must be done to the HVH make up water pumps if MWS is lost?

Answer 6

PTL

Question 7

What is the power supply for HVH P1 A/B?

Answer 7

US10

Question 8

Why must HVH be kept pressurized?

Answer 8

Keeps ASS out of HVH and prevents boiling.

Question 9

What happens in winter to HVH on a loss of RB glycol?

Answer 9

1. HVH Demand goes up
2. RB Temp goes down
3. Delta P goes down
4. HVH Temp goes up

Question 10

What does glycol prevent?

Answer 10

prevents coils from freezing

Question 11

Where is HVH extraction steam supplied from?

Answer 11

8th Stage

Question 12

How many HVH HXs are needed to be in service?

Answer 12

2

Question 13

What must HVH HXs have before admitting Steam?

Answer 13

Must have flow before admitting steam. Steam supplied will shut w/out flow.

Question 14

When will the HVH P2s not start?

Answer 14

<6”

Question 15

What happens to steam supplied on a HVH pump trip?

Answer 15

They shut.