Difference between Short circuit and overload

Short circuit

A short circuit occurs when two or more current carrying conductors of different phases or different voltage levels or different terminal (in DC circuits) come in contact with each other or with the ground.

Overload

Overload occurs when the load on equipment rises above its rated capacity.

Difference between Short circuit and overload

Short circuit and overload, in spite of similarities, are different from each other.  On the occurrence of short circuit, the voltage at the point of the fault falls to zero and the current in the network increases abnormally to a higher value.

But in the case of overload reduction in the terminal voltage of the equipment occurs but the voltage will never fall to zero. Similarly the current also increases to a higher value but not as high as in the case of short circuit. 



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