Question

What is a short-circuit ?what are the causes of short-circuit?

Answer 1

Dear student,
A short circuit is simply a low resistance connection between the two conductors supplying electrical power to any circuit. When a short circuit occurs, a heavy current called short circuit currentflows through the circuit.

A short circuit in the power system is the result of some kind of abnormal conditions in the system. It may be caused due to internal and or external effects.

Internal effects are caused by the breakdown of equipment or transmission lines from the deterioration of insulation in a generator, transformer etc. Such troubles may be due to the aging of insulation. inadequate design or improper installation.

External effects causing short circuit include insulation failure due to lightning surges. overloading of equipment causing excessive heating: mechanical damage by public etc.

Regards