Tag: generator protection
Plug Setting Multiplier & Time Setting Multiplier
Plug Setting Multiplier & Time setting Multiplier Calculation:
Plug setting multiplier is nothing but a ratio between the actual fault current in the relay operating...
Classification Generator tripping Scheme Class A, Class B & Class C
Classification Generator tripping Scheme Class A, Class B & Class A:
The generator Tripping classified according to the fault.
Protection of the generator:
Voltage Controlled Over...
What is Through Fault
What is Through Faults:
Through fault is nothing but a fault which occurs outside of the protective zone or in simple words the external fault...
Directional Over Current & Non Directional Over Current Protection Working Principle
Directional Over Current & Non Directional Over Current Protection Working Principle:
Directional Earth Fault Relay is used to protect the transformer/generator/alternator from over current fault....
Rotating Diode Failure Relay Working Principle
Rotating Diode Failure Relay Working Principle?
The diode failure relay is used to protect the alternator’s automatic voltage regulator from severe damage against the rotating...
Merz Price Differential Protection for Generators
Biased Differential scheme (Merz-Price Scheme) for protection of Generators:
This is most commonly used protection scheme for the alternator stator windings. The scheme is also...
Backup impedance Protection Working Principle (21G)
Backup impedance Protection Working Principle (21G)
The Backup Impedance Protection is used to protect the generator from supplying the over loaded or faulty system and it...
Under Frequency Protection Working Principle – 87U
Under Frequency Protection Working Principle:
Under Frequency Protection is used to protect the transformer/generator/alternator when the frequency drops below the operating frequency. It is a...
Low Forward Power Protection 32F
Low Forward Power Protection 32F:
Low forward Power protection occurs when the generator is not able to produce the minimum output power. Typically, the generator...
Pole Slip Protection Out of Step Protection 78PS Working Principle
Pole Slip protection or out of step Protection 78PS:
Pole Slip protection: Under normal condition the generator is synchronized with grid. But during some extreme...
