Turbine building ventilation

Question 1

Explain what the M010 handswitch controls?

Answer 1

M010

Starts C004 fan
Open 133’ F008 damper
Trip exhaust fans C006A/B

Question 2

Explain what M009 handswitch controls?

Answer 2

M009

Start C004/C005 fans
Open 133’ and 93’ dampers F006/F007
Trip exhaust fans C006A/B

Question 3

Explain what M011 handswitch controls?

Answer 3

Starts C005 fan
Opens 113’ F009 damper
Trip exhaust fans C006A/B

Question 4

Explain how the turbine building pressure control system operates

Answer 4

> -.125’ wc F003 (exhaust) opens more. F004 (recirc) closes more.
Less negative….. DP down

< -.125” wc F003 closes more. F004 opens more
More negative….. DP up

Question 5

What pressure is turbine building maintained at?

Answer 5

Negative (-.125” wc)

Question 6

What cools 166’ Battery Room fan coil unit

Answer 6

TBCW

Question 7

What cools all other fan coil units (other than 166’ battery room)

Answer 7

PCW

Question 8

When does the turbine building exhaust alarm and trips occur in relation to the charcoal filter?

Answer 8

255 deg F charcoal temp high alarm and heater de-energizes

310 deg F charcoal temp HI-HI alarm and exhaust fan trips

Question 9

When will exhaust fan trip on High inlet temp?

Answer 9

filter train inlet temp 130 deg F exhaust fan trips

Question 10

What cools the turbine building steam tunnel

Answer 10

PCW