Types of Surge Absorber

Types of Surge Absorber

Types of Surge Absorber: The travelling waves set up on the transmission lines by the surges may reach the terminals apparatus and cause damage to it. The amount of damage…

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Surge Diverter

Surge Diverter

Surge Diverter | Lightning Arrester Types: The earthing screen and ground wires can well protect the electrical system against direct lightning strokes but they fail to provide protection against travelling…

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Types of Lightning Strikes

Types of Lightning Strikes

Types of Lightning Strikes: There are two Types of Lightning Strikes may strike the power system (e.g. overhead lines, towers, sub-stations etc.), namely; Direct stroke Indirect stroke 1. Direct stroke:…

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Differential Relay

Differential Relay

Differential Relay: Most of the relays discussed so far relied on excess of current for their operation. Such relays are less sensitive because they cannot make correct distinction between heavy…

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Distance Relays or Impedance Relays

Distance Relays or Impedance Relays

Distance Relays or Impedance Relays: The operation of the relays discussed so far depended upon the magnitude of current or power in the protected circuit. However, there is another group…

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Protective Relay

Protective Relay: A Protective Relay is a device that detects the fault and initiates the operation of the circuit breaker to isolate the defective element from the rest of the…

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Location of Reactors in Power System

Location of Reactors in Power System

Location of Reactors in Power System: Short circuit current limiting Location of Reactors in Power System may be con­nected in series with each generator in series with each feeder and…

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