Term
| EDG - Crankcase pressure trip |
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Definition
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Definition
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Term
| EDG - mech Overspeed trip |
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Definition
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Term
| EDG - EDG oil pressure trip |
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Definition
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Term
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Definition
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Term
| EDG - jacket pressure trip |
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Definition
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Definition
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Definition
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Term
| EDG - Air compresor Start |
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Definition
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Definition
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Term
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Definition
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Term
| EDG - Air pressure low (TS) |
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Definition
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Term
| EDG - LO storage tank level (TS) |
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Definition
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Definition
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Definition
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Definition
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Definition
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Definition
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Definition
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Term
| EDG - EDG essential trips |
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Definition
| Crankcase, start, OS, Oil press, Generator differential, manual |
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Term
| EDG - EDG non-essential trips |
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Definition
| Generator(ground, UV,Field), Jacket(Level, pressure, temp),LO temp, Fuel pressure |
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Term
| CTG - Turbine Mechanical Overspeed (Unit 1) |
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Definition
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Term
| CTG - Turbine Overspeed (Device 12T) |
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Definition
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Term
| CTG - Turbine Underspeed (14HS) |
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Definition
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Term
| CTG - High Ambient Temperature Differential trip |
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Definition
| >40oF above exhaust temp heatup ramp rate Exh temp/MW output |
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Term
| CTG - Turbine Exhaust High Temperature (26ET) (Units 2/3/4) trip |
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Definition
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Term
| CTG - Turbine Exhaust High Temperature (Unit 1) trip |
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Definition
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Term
| CTG - Low Hydraulic Trip Pressure (63HD) trip |
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Definition
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Term
| CTG - Low Oil Pressure (63QT) trip |
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Definition
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Term
| CTG - High Oil Header Temperature (26T) trip |
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Definition
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Term
| CTG - Excessive Vibration (Device 39VTX) trip |
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Definition
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Term
| EDG - Starting Air Compressor Auto Start |
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Definition
| Either receiver less than 225 psig. |
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Term
| EDG - Starting Air Compressor Auto Stop |
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Definition
| Both receivers greater than 250 psig. |
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Term
| EDG - FO Transfer Pump Auto Start |
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Definition
| CMC Switch in AUTO and associated EDG starts. |
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Term
| EDG - FO Transfer Pump Auto Start |
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Definition
| CMC switch in AUTO and fuel oil day tank level 20-1/2' below bottom of top flange. |
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Term
| EDG - DGSW Pump Auto Start |
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Definition
| CMC switch in AUTO and EDG speed greater than 250 rpm. |
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Term
| EDG - Standby Lube Oil Circ Pump Auto Start |
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Definition
| CS switch in AUTO, EDG speed less than 250 rpm and 10 minute time delay expired. |
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Term
| EDG - Standby Lube Oil Circ Pump Auto Stop |
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Definition
| CS in AUTO and EDG speed greater than 250 rpm. |
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Term
| EDG - Standby Fuel Oil Pump Auto Start |
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Definition
| CMC switch in AUTO and fuel oil pressure less than 10 psig, EDG speed greater than 250 rpm. |
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Term
| EDG - Standby Fuel Oil Pump Auto Stop |
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Definition
| CMC switch in AUTO and EDG speed <250 rpm. NOTE: Once started, the 10 psig pressure switch is bypassed. |
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Term
| EDG - Standby Jacket Coolant Pump Auto Start |
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Definition
| CS switch in AUTO and EDG speed less than 810 rpm. |
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Term
| EDG - Standby Jacket Coolant Pump Auto Stop |
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Definition
| CS switch in AUTO and EDG speed greater than 810 rpm. |
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Term
| EDG - Describe the indications in the Control Room for a 4160V ESF bus lockout. |
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Definition
| All source breakers open 6, 8 , and 9 breakers tripped. |
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Term
| EDG - During EDG surveillances, at what times will the EDG not perform its function automatically and will require operator action to restore? |
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Definition
| Mode Control Switch in - Maint Pull OutRate/Idle selector in IDLEExciter Bypass in Bypass |
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Term
| EDG - Duringr a 4160V ESF bus lockout, how does the EDG respond? Explain. |
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Definition
| The EDG would not start since the bus lockout relay is interlocked in the EDG start circuit so the EDG does not start during a ESF bus lockout. |
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Term
| EDG - How would the EDG respond to a loss of offsite power when operating in parallel with offsite power? |
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Definition
| The EDG would remain tied to the buss initially. As the EDG tried to pick up load the under frequency relay (which is enabled with the 3 and 6 breakers closed) would open the EDG output breaker. This would unbypass the UV relays and allow normal load shedding to occur. |
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Term
| EDG - What causes the EDG not in auto alarm? |
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Definition
| Any Aux equipment disconnect switch out of position.These switches are located on the EDG at the Generator End.Coolant HeaterCoolant Circ PumpLube Oil HeaterLube Oil Circ PumpGenerator HeatersFuel Oil standby pump |
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Term
| EDG - What causes the EDG not ready for auto start alarm? |
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Definition
| Mode Control Switch in - Maint Pull OutRate/Idle selector in IDLEExciter Bypass in BypassExciter Trip What causes the EDG not ready for auto start alarm? |
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Term
| EDG - What does the EDG Diff trip measure? |
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Definition
| Current within the generator phases as compared to current after the output breaker. |
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Term
| EDG - What does the Emergency Signal Bypass Switch do? Why is it needed and when would it be used? |
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Definition
| Only bypasses the the LOCA signal. If DW pressure was higher that the setpoint and we wanted to shut off the EDGs. |
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Term
| EDG - What is the status (TS wise) of the EDG when operating in parallel with offsite power? Why? |
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Definition
| The EDG is INOPERABLE.When the EDG output breaker is closed the undervoltage relaying is bypassed to prevent spurious EDG unloading during times when the EDG is needed to supply the ESF busses. |
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Term
| EDG - What signals auto start the EDG and where are these signals generated from? |
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Definition
| Level 1 and Hi DW pressure come from core spray logic. One division of logic is enough to start all 4 EDGs. Under voltage will also start the EDGs. The signals come from the ESF and EDG 4160V busses. 480V busses have UV schemes but do not start the EDGs. |
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Term
| EDG - What signals enable/initiate EDG load sequencing? |
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Definition
| EDG emergency start signals enable the load sequencer and the EGD output breaker closing initiates the sequencer. |
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Term
| EDG - Which ESF 480V bus undervoltage scheme is different from the rest and why? |
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Definition
| The 72C bus UV relays remain active even though the EDG 12 output breaker is closed. This is to ensure the an UV trip on the 72C bus will initiate a transfer of 72CF. Otherwise 72CF would be inoperable every time EDG 12 is tested. |
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Term
| EDG - Which signals determine that the EDG is operating in the ‘Emergency Mode’? |
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Definition
| LOCA Signal (L1 or High DW Pressure from CS Logic).Undervoltage/Load Shed string tripped.ESF bus 6 and 9 breakers open together, LOCA signal. |
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Term
| EDG - Why do the 6 and 9 breaker positions input into EDG “Emergency Mode” the circuit? |
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Definition
| The Undervoltage/Load Shed string will reset when the bus is reenergized by the EDG so in order to keep the EDG in the emergency mode these are inputs to the start cicuit. |
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Term
| EDG - Why does the Generator Trouble alarm come in on every EDG automatic load sequence? |
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Definition
| This alarm is brought in by Field failure or Generator Bearing high temp. On each EDG start the power to the Generator Bearing temp monitor is lost for a short time during sequencing. This brings in the alarm. When power is restored the alarm must be acknowledged locally to clear the control room alarm. |
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Term
| 345KV - BKR POS CF CM LOCKOUT |
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Definition
| At 71 PSIG decreasing with breaker opens on lockout, disconnects will open. |
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Term
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Definition
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Term
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Definition
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Term
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Definition
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Term
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Definition
| 13.8KV, 18.825 MW, 5100 rpm turbine, 3600 rpm generator |
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Term
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Definition
| 13.8KV, 18.825 MW, 5100 rpm turbine, 3600 rpm generator |
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Term
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Definition
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Term
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Definition
| 13.8KV, 18.825 MW, 5100 rpm turbine, 3600 rpm generator |
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Term
| DC Distribution - Div I (2PA) Number of Cells |
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Definition
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Term
| DC Distribution - Div I (2PA) rated Hours |
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Definition
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Term
| DC Distribution - Div I (2PA) Rating VDC, A-hr |
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Definition
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Term
| DC Distribution - Div I (2PA) Use |
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Definition
| Div I safety, RCIC, and EDGs |
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Term
| DC Distribution - Div I (2PA) Spare |
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Definition
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Term
| DC Distribution - Div II (2PB) Cells |
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Definition
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Term
| DC Distribution - Div II (2PB) Hours |
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Definition
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Term
| DC Distribution - Div II (2PB) Individual cell voltage and AH Rating |
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Definition
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Term
| DC Distribution - Div II (2PB) Use |
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Definition
| Div II safety, HPCI, and EDGs |
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Term
| DC Distribution - Div II (2PB) Spare |
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Definition
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Term
| DC Distribution - BOP (2PC) Cells |
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Definition
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Term
| DC Distribution - BOP (2PC) Hours |
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Definition
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Term
| DC Distribution - BOP (2PC) Rating |
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Definition
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Term
| DC Distribution - BOP (2PC) Use |
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Definition
| 260Vdc motors and 130Vdc loads |
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Term
| DC Distribution - BOP (2PC) Spare |
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Definition
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Term
| DC Distribution - 48/24 Vdc(23.310) Cells |
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Definition
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Term
| DC Distribution - 48/24 Vdc(23.310) Hours |
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Definition
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Term
| DC Distribution - 48/24 Vdc(23.310) Rating |
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Definition
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Term
| DC Distribution - 48/24 Vdc(23.310) Use |
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Definition
| NI, Process rad, and Rad monitors |
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Term
| DC Distribution - 48/24 Vdc(23.310) Charger |
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Definition
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Term
| DC Distribution - 48/24 Vdc(23.310) Spare |
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Definition
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Term
| DC Distribution - De-energizing DC Control Power to 480V ESF Bus 72C will cause "_________________". |
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Definition
| an automatic throwover of the 480V MCC 72CF to the alternate source of power (480V Bus 72F Pos 5C). |
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Term
| 120VAC - Acronym for MPU P/S |
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Definition
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Term
| Purpose of Potential Transformers |
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Definition
| - Their main function is to provide a lower potential for metering and relaying purposes where the source potentials could otherwise be unsafe to utilize directly. |
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Term
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Definition
| Current transformers (CT) have no fuse protection. This prevents extremely high voltages generated when a CT circuit is opened. Thus if work is to be performed requiring the removal of instrumentation powered by the CT the secondary windings must be shorted (to remove all potential) prior to disconnecting |
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Term
| Purpose of (SCADAS) and DCS |
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Definition
| Purpose - SCADAS was designed to monitor and control power flow through the electrical system. DCS is used to monitor and control the 120kV matt, CTG’s, SBO diesels, Bus 10 and 11 from the Fermi 2 Control Room and Dedicated Shutdown panel as well as locally at the SBO Control House. |
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Term
| What does SCADAS stasnd for? |
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Definition
| Supervisory Control and Data Acquisition System |
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Term
| Purpose of 294 cutoff switch |
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Definition
| used to disable the data collecting equipment and place open indication for the breaker |
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