What is the difference between short circuiting and overloading

In this, the phase to phase short circuit is very dangerous and which creates a high current flow through the conductor than the phase to ground and phase to the same phase fault. Now you will get doubt about why high current is created on the short circuit?

Technically, the resistance between the two conductors will become approximately zero on the short circuit. Here the entire line voltage will be dropped across the small resistance. Hence the current becomes high. Overloading is nothing but a flow of actual current which is higher than the allowable limit. Technically overload is not a fault.

Look at the figure for a better understanding. Hello, friends, I hope you all are doing great. The basic difference between the short circuit and overload occurs due to existence of fault between lines or line to earth fault while overload occurs when a large amount of current is used by any device from the power supply. The overloaded condition is related to the circuitry or instrument.

Any circuitry is overloaded when it uses more current than the rated value. The overloading occurs due to the damaging of instruments or fault occurs in the circuits. Raja 30 Mar Reply. Fatima 1 May Reply. It is really help full for me! Leave a Reply Cancel reply Comment. Enter your name or username to comment. Enter your email address to comment. Enter your website URL optional.

Key Differences Between Short Circuit and Overload The short circuit means the voltage at the fault points reduces to zero and the large current starts flowing through the circuit whereas in the overloaded condition the load greater than the suitable value are applied to the system.

The voltage at the short circuit decreases to zero, whereas in the overloaded condition the voltages reduce, but it cannot be zero. During the short circuit, the resistance of the path of current becomes low due to which the heavy current flow through the circuit whereas in overload condition the magnitude of the current is high but appreciably low as compared to short circuit current. The short circuit occurs in the system when the neutral and the live wire comes in contact with each other, whereas overload occurs when the number of electrical equipment connects to the same socket.

Leave a Comment Cancel Reply Your email address will not be published. In the short-circuit the voltage at the fault point decreases to zero and current of irregular high value flow through the faulty point of the network. The overload means that load greater than the desired value have been imposed on the system.