Download - Generator Protections
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GENERATOR PROTECTIONS
• PROTECTING AGAINST ABNORMAL OPERATING CONDITIONS
• THESE PROTECTIONS INITIATE ALARM TO DRAW OPERATOR ATTENTION
• ALSO INITIATE AUTOMATIC TRIPPING IN CASE OPERATING PARAMETERS CONTINUE TO BE ABNORMAL
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GENERATOR PROTECTIONS
• OVERCURRENT• OVERVOLTAGE• NEGATIVE SEQUENCE CURRENTS• UNBALANCE CURRENTS• OVER FLUXING• FIELD FAILURE• POLE SLIPPING• LOW FORWARD POWER• REVERSE POWER
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GENERATOR PROTECTIONS(COVERING ELECTRICAL FAULTS)
• STATOR EARTH FAULT• STATOR PHASE TO PHASE FAULT• STATOR INTER TURN FAULT• GEN. & GT. OVERALL DIFFERENTIAL• GEN. TRANSFORMER REF.• ROTOR SINGLE EARTH FAULT• ROTOR DOUBLE EARTH FAULT• ROTOR INTER TURN FAULT
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CLASSIFICATION OF PROTECTIONS
•CLASS A PROTECTIONS•CLASS B PROTECTIONS•CLASS C PROTECTIONS
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GENERATOR DIFFERENTIAL PROTECTION
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GEN / G.T. OVERALL DIFF PROTECTION
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ROTOR EARTH FAULT PROTECTION