Tricky but Easy Electrical Engineering!
“The Transient Recovery Voltage refers to the voltage across the pole immediately after arc extinction. Such voltage has a power-frequency component plus an oscillatory transient component.” In alternating current circuit breakers, the current interruption takes place invariably at the natural zero of the current wave. After a current zero, the arc gets extinguished if the … Read more
Transient Recovery Voltage (TRV) is the voltage appearing across the contacts of circuit breaker after a switching action. Typically, every transient TRV has high amplitude and high frequency. In this post we will be disusing the Effects of Transient Recovery Voltage . For detail on Transient Recovery voltage, read Transient Recovery Voltage (TRV) Transient Recovery Voltage … Read more
The basic principle for Breaker operation is to extinguish arc which form when the Breaker is opened. But it does not mean that arcing donot take place when the breaker is closed, rather it does. The time duration for which arcing take place when Breaker is closed is known as Pre-arcing Time which is typically … Read more