Circ Water

Question 1

What are the CW Pump Trips?

Answer 1

• Manual
• Overload
• instanteous Overcurrent
• Undervoltage on the associated RCP Bus

Question 2

What are the indications of icing?

Answer 2

• Circulating Water temperature ≤ 35°F.
• 1 Foot of drawdown in the Forebay not caused by starting a CW Pump
• Traveling screens high and/or extreme high differential pressure alarms are annunciating with little or no trash collection in the screen wash trash

Question 3

What systems support the CW System?

Answer 3

• Chlorine Injection
• Miscellaneous Sealing and Cooling Water
• Screen Wash System
• Vacuum Priming
• 250v DC

Question 4

What are the CW System loads?

Answer 4

• Main Condensers
• FP Condensers
• TACW Hx
• TRS Overflow
• Radiological Liquid Waste
• Lawn Sprinkler (Discharge Hdr)
• Chlorine Injection (Discharge Hdr)
• NESW (normal: intake hdr, backup: discharge hdr)
• MSCW

Many 
Fishies
Took 
Their 
Ridiculous 
Lives 
Causing 
Needless 
Migranes

Question 5

When do the CW outlet valves auto open?

Answer 5

• They auto open with associated CW pump auto start to prevent pump runnout

Question 6

Will CW outlet valves auto open on a manual CW pump start?

Answer 6

• No, you must manually open the CW outlet valves on a Manual CW Pump start. This prevents pump runout

Question 7

When do the CW outlet valves auto close?

Answer 7

• Auto close on associated CW pump breaker opening. - Prevents short cycling the system

Question 8

When will a CW pump auto start?

Answer 8

• With the CR Switch in Auto, the CW Pump will auto start on a failure of a running CW Pump. (Running CW control switch in Run with the breaker open.)

Question 9

What are the CW pump power supplies?

Answer 9

• 1D(2D) / CW Pump #11(21)
• 1A(2A) / CW Pump #12(22)
• 1B(2B) / CW Pump #13(23)
• 2C / CW Pump #24