Residential Electrical Wiring Overview A residential electric power service typically consists of a three wire ac system supplied by the…
A protective relay is basically an electrical device that detects a fault in a power system and initiates the operation…
Introduction Many modern designs of circuit breakers for use at transmission voltages utilize sulphur hexafluoride (SF6) gas both as an…
The function of a ground fault interrupter (GFI) is to disconnect the power if a current leakage to ground is…
Switchgear can be defined as equipment used for controlling, regulating and switching ON and OFF power circuits. Switchgear units range…
