What is the short circuit breaker test and how is it performed?

One of the extensively familiar difficulties within a home’s electrical network is a tripped network breaker. You have probably experienced this a multitude of times yourself. Generally, the spot is ​​a easy flip of a lever and the lamps turn on. But sometimes, the breakers does not reset or maintains plunging. So what can you do if your circuit breaker doesn’t reset electrical repairs in Chattanooga, TN.

Why is it important to test the circuit breaker?

Circuit Breaker

A circuit breaker can sit idle for years, but if a malfunction occurs it should gradually disconnect within milliseconds. Circuit breakers must be annually and completely tested. Circuit breakers play an important role in safeguarding costly appliance from destruction caused by failure. For example, connect and disconnect the power supply reliably; this requires demonstration of their reliability with field tests during installation and with regular maintenance tests during its life cycle to avoid costly failures and problems that could also compromise the safety of the substation. Regularly checking the accomplishment of circuit breakers is therefore an important and cost beneficial portion of any maintenance strategy.

Type Circuit breaker tests

Testing circuit breakers is more difficult than other electrical equipment such as transformers or machines because the short circuit current is very large. The transformer test is mainly divided into two groups, type test and routine test. The type tests are organized with the aim of demonstrating the capabilities and ensuring that the rated characteristics of the circuit breaker are accurate.

Mechanical test:

It is a type test of mechanical skill that involves repeated opening and closing of the switch. A circuit breaker must open and close at the correct speed and perform its designated task and operation without mechanical failure.

Thermal Test

Due to the rated current flow through its pole under rated conditions, the circuit breaker under test experiences steady temperature rises.

Dielectric test

These tests are performed to check the supply frequency and the impulse voltage withstand capability. Mains frequency tests are maintained on a new circuit breaker; the test voltage changes with a rated voltage of the switch.

Short circuit test

Circuit breakers are susceptible to sudden short circuits in short circuit testing laboratories and oscillograms are taken to learn about the behavior of the circuit breakers upon ignition, during contact interruption and after arc extinction.

Comments are closed, but trackbacks and pingbacks are open.