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Dead Machine Protection

Dead Machine Protection Working Principle – 94G ANSI Code

Dead machine Protection Working Principle -94G ANSI Code Dead machine protection is used to protect the generator or alternator from accidental circuit breaker closing when...
Pole Discrepancy Protection

Pole Discrepancy Protection Working Principle – 52 PD

Pole Discrepancy Protection Working Principle: Pole discrepancy protection is used to protect the generator/alternator from single phasing when the circuit breaker is failured to close...
Over Voltage protection Working Principle

Over Voltage Protection Working Principle 59

Over Voltage protection 59: Over voltage protection is used to protect the synchronous Generator/transformer/alternator form high voltage. Generally, overvoltage occurs due to sudden load through...
What is Reverse Power protection

Reverse Power Protection Working Principle -32R

Reverse Power Protection Working Principle 32R: Reverse power protection is the most Predominate protection in generator/alternator protection. It is used to protect the alternator/generator from...
stator earth fault relay 59GN 27TN

100% Stator Earth Fault Protection of Generator

100% stator Earth Fault protection: Stator is a stationary winding of generator. It is a heart of the generator. To protect the stator, we have...
Over frequency relay operation

Over Frequency Protection Working Principle -81O

Over Frequency Protection: Over frequency protection or over speed protection is used to protect the generator from over speeding of generator’s rotor, reduce the eddy...
Generator Over Fluxing or Over Excitation Protection

Generator Over Fluxing or Over Excitation Protection 24 G

Over Fluxing or Over Excitation Protection 24 G. Over Fluxing relay is used to protect the generator against overheating and the winding insulation failure. Over...

What is Reactive Power

Reactive Power: Reactive power is an imaginary power which is delivered by capacitors and alternators. Consider the case in which the load is a pure...

What is Star Connection in Three Phase Power System

What is Star Connection: Star connection or Y connection is an arrangement of three of same or different passive components (resistor, inductor, capacitor). This arrangement...

Why Are Alternators Rating in KVA or MVA

Why are alternators rating in KVA? Reason 1 The alternator is an energy conversion device, which converts mechanical energy into electrical energy. It is working under...