AP-28 (RCP failures)

Question 1

What are the sections of AP-28 (RCP malfunctions)

Answer 1

• A - RCP hi or lo lube oil level
• B - RCP seal #1 failure
• C - RCP seal #2 or #3 failure
• D - loss of seal injection
• E - loss of CCW to RCP / or RCP hi temp
• F - loss of seal inj AND loss of therm barr cooling

Question 2

What actions does FOP criteria for AP-28 (RCP malf) have you take?

What are the criteria that make you take actions?

Answer 2

1 seal outlet > 235 F

Trip reactor, implement E-0, stop affected RCP, go to step….

Seal return flow > 6 gpm and pump brng temps rising

Seal return flow > 6 gpm and seal return temps rising

Seal return flow > 8 gpm

Seal return flow < 0.8 gpm and pump brng temps rising

Seal return flow < 0.8 gpm and seal return temps rising

Any motor brng temp > 200 F

Any motor Stator temp > 300 F

CCW temp > 120 F

loss CCW to RCP motor coolers > 5 min

radial brng outlet > 225 F

loss of seal inj and thermal barier cooling

any valid seal flow or bearing temp alarm concurrent with vibration alarm

Question 3

In AP-28 (RCP malfunction) what are the generic actions taken if procedure directs you to trip Rx and trip RCPs for seal #1 failure?

Answer 3

Trip Rx

Trip affected RCPs

Close seal #1 outlet (w/in 3-5 min)

close associated spray valve (if applicable)

Question 4

AP-28

In section A (RCP Hi or Lo lube oil level) What condition meets Rx trip criteria?

Answer 4

• Bearing temp > 200 F
• valid RCP vibration alarm

Question 5

AP-28

What does the Total #1 Seal Leakoff consist of?

If input for #2 seal leakoff flow Hi is not in …..what can we assume?

Answer 5

• sum of #1 and #2 seal leakoff indications
• # 2 seal leakoff is < 0.75 gpm