Grounding or earthing an electrical system is the process of connecting all metalwork/frame of electrical equipment i.e. the non-current carrying…
Switchgear generally refers to the switching devices and their combinations, with the related control, measuring, protective and regulating equipment. The…
Generally protective equipment testing may be divided into three stages: Factory tests. Commissioning tests. Periodic maintenance tests. Factory and commissioning…
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…
