Dynamics of Motor Load System
A motor generally drives a load (Machines) through some transmission system. While motor always rotates, the load may rotate or…
A motor generally drives a load (Machines) through some transmission system. While motor always rotates, the load may rotate or…
Primary injection test For primary injection testing, high current is injected on the primary side of the current transformer. The…
In this breaker, vacuum is being used as the arc quenching medium. Vacuum offers highest insulating strength, it has far…
At this point we are aware that the medium in which arc extinction of the circuit breaker takes place greatly…
Types Of Oil Circuit Breakers Oil circuit breakers can be classified into following types: 1) Bulk oil circuit breakers which…
This type of circuit breakers, is those kind of circuit breaker which operates in air at atmospheric pressure. After development…
The rating of a circuit breaker includes, 1) Rated short circuit breaking current. 2) Rated short circuit making current. 3) Rated operating sequence of circuit…
Current chopping is a term that came to our vocabulary with the advent of vacuum switching which was commercially started…
To reduce the restriking voltage, RRRV and severity of the transient oscillations, a resistance is connected across the contacts of…
It is the rate of increase of restriking voltage and is abbreviated by R.R.R.V. its unit is kV/m sec.Consider the…
It is the transient voltage that appears across the contacts at or near current zero during arcing period.If dielectric strength…
The phenomena of Arc During opening of current carrying contacts in a circuit breaker the medium in between opening contacts…