40AO-9ZZ04 RCP Emergencies Flashcards
For 40AO-9ZZ04 RCP Emergencies, what is the concern with high Stator Temperature?
High winding temp = insulation breakdown = internal faults = overcurrent trip
What is RCP BRNG trip Criteria?
- ≥290°F Stator Temp
- ≥245°F Pump Upper Thrust Brng
- ≥245°F Pump Journal Brngs
- ≥200°F Motor Lower Thrust Brng
- ≥200°F Anti-rotation Brng
- ≥185°F Motor Journal Brngs
What action can be taken to help a rising temperature in a RCP UPPER THRUST BRNG
- Start Lift Oil pump
- New oil may help rising temp.
When/ at what levels calls for running the lift oil pump to restore RCP reservoir levels?
- 0% - Lift Oil
- <28% - Journal
- <64% - Upper Thrust
What concern is there when acknowledging a Loose Parts Alarm at the local panel?
Acknowledging a loose parts alarm locally will CLEAR the control room alarm even with a valid alarm on the local panel
What RCP vibration level would require a Rx Trip?
- > 10 Mils
- Both channels and Not previously evaluated
What indicates a cracked RCP shaft on the RCP displacement?
- Meter pegged High or Low
What is the expected response if RCP Seal Injection is stopped?
- HPSC Inlet rise to 200-220°F (doubles)
- All other temps should remain the same
What is the Time Critical Action (TCA) limit to protect the RCP when NC is lost?
- 30 minutes
- Shutdown RCP
How long can a RCP remain in HTSBY with a loss of Seal Injection and NC before damage occurs
- 20 Minutes
What RCP conditions would require a Rx trip?
- Brng temp limits exceeded
- Seal temp limits exceeded
- > 10 mils displacement
- Seal Inj. < BO and NC flow low for > 3 minutes
- BO ≥ 9.5 gpm
- BO <0.5 gpm
- Multiple seal failure
What RCP Seal temp limits would require a Rx Trip?
- ≥250°F Seal 1 Inlet, Seal 2 in/out
- ≥250°F HPSC in
- ≥200°F HPSC out
