Pages that link to "Overcurrent"
Jump to navigation
Jump to search
The following pages link to Overcurrent:
Displayed 50 items.
- 05000285/LER-1991-007, :on 910320,identified twenty-one 480 Volt Molded Case Circuit Breakers Outside Design Basis.Caused by Deficiencies in Original Sys Design.Dbds Compiled as Part of Licensees Reconstitution Program (← links)
- 05000245/LER-1996-031, :on 960425,incorrect Fuses Caused Automatic Depressurization Sys to Be Inoperable.Cause Has Not Been Determined.All DC Circuits within Fuse Control Program Will Have Fuses W/Properly Certified DC Rating (← links)
- ML20129J050 (← links)
- ML20129F901 (← links)
- ML20114C600 (← links)
- ML20113G596 (← links)
- 05000219/LER-1984-020, :on 840910,power Lost to Buses 1A2 & 1B2, Resulting in Full Scram.Caused by Faulty Overcurrent Device Causing Breaker 1B2M to Trip on Overload Due to Current Surge.Defective Device Replaced & Tested (← links)
- ML20105C825 (← links)
- 05000499/LER-1992-005-01, :on 920608,inadvertent Start of Component Cooling Water Pump Occurred When Discharge Header Pressure Went Below Setpoint for Starting Standby Pump.Caused by Inadequate Procedure.Procedures to Be Changed (← links)
- ML20100R440 (← links)
- ML20100E197 (← links)
- ML20098D149 (← links)
- 05000374/LER-1984-052, :on 840817,turbine Received Trip Signal, Producing Reactor Scram.Caused by Voltage Imbalance in Three Phase Y network.Alternator-exciter Replaced (← links)
- ML20098B073 (← links)
- 05000334/LER-1982-048-03, /03L-2:on 821018,during Startup of Main Feed Pump 1B Apparent Overcurrent Condition Detected.Caused by Conservative Transformer Primary Side Overcurrent Relay Setting.Replacement of Relays Planned (← links)
- ML20096D515 (← links)
- 05000423/LER-1991-014, :on 910609,reactor & Subsequent Turbine Trip Occurred.Caused by phase-to-ground Fault on 345 Kv Sys Transmission Line & Loose Restraint Tap of Relay.Tap Screw & Wiring Repaired & Relay Returned to Svc (← links)
- ML20095D010 (← links)
- ML20094P480 (← links)
- ML20093H749 (← links)
- ML20092F752 (← links)
- ML20091H369 (← links)
- 05000361/LER-1992-002, :on 920209,CR Isolation Sys Actuation,Automatic Start of EDG 3G002 Occurred Due to de-energization of ESFs Actuation Sys Power Supply.Esfas Dc Power Supply Breaker Reclosed (← links)
- ML20087C443 (← links)
- ML20086T356 (← links)
- 05000261/LER-1976-015, :on 760817,auxiliary Feedwater Pump Discharge Valve V2-16A Failed to Open as Required.Caused by Valve Binded to Seat.Larger Capacity to Be Installed (← links)
- ML20085M474 (← links)
- ML20085M138 (← links)
- 05000321/LER-1991-021, :on 911007,five Ampere Fuse Blew in RPS Bus B Equipment Protection Panel.Caused by Personnel Error. Personnel Involved Were Counseled Re Event.Monthly Meeting Re Event to Be Established by 911130 (← links)
- 05000483/LER-1995-002, :on 950505,TS Surveillance 4.8.4.1 of Containment Purge Exhaust Sampling Valve Circuit Feed Breaker Was Missed & Was Inoperable Due to Personnel Oversight.Reviewed Penetration Containment Circuits (← links)
- ML20082M888 (← links)
- 05000293/LER-1991-005, :on 910325,loss of AC Power to B Train of Safety Sys Occurred.Caused by Failure of Automatic Voltage Regulator.Calibr Frequency to Be Established & Calibr Procedures to Be Developed (← links)
- 05000333/LER-1984-002, :on 840130,emergency Svc Water Breaker B Tripped.Caused by Incorrect Settings Due to Test Equipment Being Out of Calibr.Pump & Breaker Trip Devices Adjusted & Pump Returned to Svc (← links)
- ML20080L635 (← links)
- ML20080K967 (← links)
- 05000285/LER-1991-004, :on 910212,offsite Power Low Signal Discovered Outside Design Basis.Caused by Inadequate Mod.Mod Implemented to Alter Existing Logic Circuitry (← links)
- 05000333/LER-1994-009-01, :on 941129,partial Invalid Primary Containment Isolation as Result of Personnel Error During Electrical Bus Power Source Transfer.Operations Personnel Restored Sys to Normal in Accordance W/Plant Procedures (← links)
- 05000382/LER-1991-007-01, :on 910510,review of Calculation EC-E89-007 Revealed That Electronic Sensor Current Transformer Rating on 480-volt safety-related Bus Incorrect.Caused by Failure to Verify Amperage Rating.New Bus Installed (← links)
- 05000317/LER-1980-038-03, Control Room Air Conditioning Compressor 12 Tripped & Would Not Restart.On 800801 Compressor Tripped on Overcurrent.Caused by Amps Higher than Specs.Load Demand Adjusted (← links)
- 05000348/LER-1991-007, :on 910629,reactor Trip Occurred.Caused by Detection of phase-to-ground Fault by Protective Relaying for Y Winding of 1B Unit Auxiliary Transformer.Transformer Removed from Svc,Isolated & Grounded (← links)
- 05000311/LER-1983-031-03, /03L-0:on 830623,spurious Safeguards Equipment Control Sys Actuation Deenergized Various Loads on Vital Bus 2A.Caused by Internal Circuitry Noise.Corrective Action to Be Taken When Investigation Completed (← links)
- 05000328/LER-1994-007-01, :on 940923,CCP Total Flow Rate Exceeded TS Upper Limit Resulting in Pump Being Inoperable.Caused by Incorrect Evaluation of Spare Rotating Element.Previously Performed Evaluation Being Reviewed (← links)
- ML20076K502 (← links)
- ML20073T283 (← links)
- 05000368/LER-1983-016-03, /03L-0:on 830311,containment Spray Pump 2P-35A Tripped Due to Tripped C Phase Instantaneous Overcurrent Relay.Caused by Deviation from Setpoint.Relay Reset.Periodic Checks Will Monitor Further Setpoint Drift (← links)
- ML20072D233 (← links)
- 05000338/LER-1983-028-03, /03L-0:on 830507,inside Containment Recirculation Spray Pump 1-RS-P-1B Tripped During Surveillance Testing. Caused by Faulty B Phase Overcurrent Device in Breaker. Replacement Breaker Installed (← links)
- 05000254/LER-1993-011-02, :on 930721,discovered That 4KV Breaker 68, Feeding 1B Core Spray Pump Motor Was Open & Discharged Due to Personnel Error.Procedure Change Has Been Processed to Standardize Window Colors Part of PM Program (← links)
- ML20067E505 (← links)
- ML20067D499 (← links)