Define over current & earth fault ?how its functioning ?
Means of protection from overcurrents
setting current & setting time
idmt
Means of protection from phase-to-ground connection
setting current
&
And in the least possible time trip
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What is the diffrence in between Class PS & Class 5P10 for CTs
how can we choose the size of road crossing pipe for power cables
which is the most advanced form of SF6 BREAKER?Can we use other gases to quench the arc?
I want to know in body earthing which material can be use either copper plate or GI plate please guide us which is best option.
why motor rating in KW?
electromechanical relay type identification example : type=tjmh t-stants for j- m- h-
what is meant by damper winding ?
During he starting up of the motor, the upstream's MCCB (350A) always trips due to the UVT relay activated. Can Star-delta starter use for a 20kW Motor (For a powder mixer machine) cause voltage-dip in the supply line voltage? If so, what are the recommended solution to eliminate/reduce the transient voltage dip in the line voltage?
Comparision of Air break circuit breaker, SF6 Circuit breaker and vacuum circuit breaker.
Would you recommend to replace all oil filled cables with xlpe cable for hv transmission with the current technolgy for xlpe cable?
How can we calculate the KVA rating of a Distribution transformer from its core details?
Capacity of circuit breakers all types