Equipment Trips

Question 1

What are the Diesel Fire Pump Trips?

Answer 1

1. Engine Cranks for 6 15-sec cycles then stop

2. Engine Overspeed 2112 RPM

Question 2

What are ALL the EDG Trips?

Answer 2

BIG C FLANGE

B earing Temp Hi
I ncomp Start
G enerator Phase Overcurrent
C 02 Actuation
F uel Oil Pressure Low
L ube Oil Pressure Low
A ir Chest Pressure Hi
N eutral Overcurrent
G enerator Phase Diff
E lectronic Overspeed

Question 3

What are the EDG Trips if the EDG is actually needed?

Answer 3

GEM

G enerator Phase Diff
E lectronic Overspeed
M anual PB

Question 4

What are the EDG Trips with 250 VDC Unavailable?

Answer 4

Worthington

Mech Overspeed

Question 5

What will Trip a Circ Water Pump?

Answer 5

Undervoltage on Associated 4 KV Bus

Question 6

What will trip the SFP Pump?

Answer 6

Load Cons

Load Shed

Overload / Overcurrent

Question 7

What are the CAC Trips?

Answer 7

Does NOT Loadshed

Low Oil Pressure
Low NESW Pressure
Overload

Question 8

What are the PAC Trips?

Answer 8

Loadshed

Load Cons

Overload

Question 9

What trips the AS/AX and AFS/AFX Fans?

Answer 9

Load Conservation

Question 10

What are the Heater Drain Pump Trips?

Answer 10

1. Lo-Lo Level in Suction Heater
2. Turbine Trip
3. Overload / Overcurrent
4. Both Suction Valves FULL CLOSED (M HDP only)

Question 11

If the Unit Emergency Trip PB is pressed, what is the only DIRECT result?

Answer 11

HEAs open

Question 12

What are the U1 Turbine Trips?

Answer 12

ASS MOISTURE COOLL

A MSAC
S I
S team Gen Level Hi-Hi 67%
M anual
O verall HEA
I OPS 110%
S tator Cooling Water (10 sec Delay)
   Lo Press 13 #
   Lo Flow 195 gpm
   Hi Temp 95*C (+ 5 sec delay)
T hurst Bearing Wear Abnormal
U nit HEA
R eactor Trip
E mergence Trip

C ondenser Vac
O verspeed 107%
Oil Pressure < 8 psig > 5 sec
L o EHC HDR Press
L o Trip HDR Press

Question 13

What are the U2 Turbine Trips?

Answer 13

ASS MOISTURE COOLL

A MSAC
S I
S team Gen Level Hi-Hi 67%
M anual
O verall HEA
I OPS 110%
S tator Cooling Water (10 sec Delay)
   Lo Press 28 #
   Lo Flow 666 gpm
   Hi Temp 95*C (+ 5 sec delay)
T hurst Bearing Wear Abnormal
U nit HEA
R eactor Trip
E mergence Trip

C ondenser Vac
O verspeed 107%
Oil Pressure < 14.7 psig > 5 sec
L o EHC HDR Press
L o Trip HDR Press

Question 14

What is the Low Oil Pressure Turbine Trip for U1?

Answer 14

Oil Pressure < 8 psig > 5 sec

Question 15

What is the Low Oil Pressure Turbine Trip for U2?

Answer 15

Oil Pressure < 14.7 psig > 5 sec

Question 16

What are the MFP Trips?

Answer 16

MR. SHIT COOLL

M anual
R eactor Trip
S I
H i-Hi SG Level (P-14)
I OPS (110%)
T hurst Bearing Wear
C ondenser Vac Low
O il Pressure Low
O verspeed 107%
L ow Suction Pressure
L ow Trip Hdr Pressure

Question 17

RHR Pump will trip on low-low level of what?

Answer 17

9% Level in RWST IF RHR suction valves (IMO-310 and 320) are not fully closed.

Question 18

What would cause the Unit specific Release Valve RRV-287 or RRV-286 to Trip?

Answer 18

Loss of all Circ Water Pumps for your Unit

Question 19

What would cause the Liquid Release Valve RRV-285 to Trip?

Answer 19

RRS-1001 Hi Rad

RRS-1000 Failure

High/Low Rad Monitor Sample Flow on RFS-1010

Question 20

What would Trip off a Monitor Tank Pump?

Answer 20

If in RELEASE:

RRS-1001 Hi Rad
RRS-1000 Failure
High/Low Rad Monitor Sample Flow on FRS-1010

When proper tank selected:
Low Monitor Tank Level

Question 21

What will trip the WGC?

Answer 21

Low Moisture Sep Pressure - 25#

Load Cons

< 0.5 #

Question 22

What will close the inlet to the I/S GDT ?

Answer 22

Hi-Hi Oxygen at 2.7% from AOM.

100# on I/S Tank

Swaps to Standby GDT if 1 is selected

Question 23

What will trip closed the Waste Gas Release Flow Control Valve RRV-306?

Answer 23

Loss of both U1 Aux Exhauste Fans

Hi Rad on U1 or U2 Vent Stack Rad Monitors

Question 24

What will trip the Rod Drive MG Supply Breakers?

Answer 24

Load Cons

Overcurrent

Question 25

What will trip the Rod Drive MG Output Breakers?

Answer 25

Overvoltage
Overcurrent
Reverse Current
Supply Breaker Open