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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why there is no short circuit when any resistance is used between phase and neutral?
why capacitors cant used in genset to maintain power factor..??
what could be the reason of a burnt current transformer in an electrical panel
what is diffrence between primary & secondry transformer?
how much allowable resistance that can be difference in motor all coils?
hello friends..... any one have papers or any study materials?sail ,hpcl...?
A electrical meter has load 500 kw. In 2 hr what rading will come on meter.
Three set (each phase contain 2 cable of 400 mmsq CU XLPE AWA) of single core cables are connected to 11 KV motor of 14 MW & the switch gear supplay is taken from 11kv feeder & this supplay taken from 275 KV substation. Problem is one pair cable(L3- 2 cable ) getting very hot & gland melted and damaged in switch gear side. the other two cable haven't any more hot(ambient temp only & L3 haveing 95- 100 Degree C. The same problem happened in 275 KV substation switch gear side also where the supply taken for 11 kv switch gear. But here L2 phese cable had problem. Why it is happening like this?. The cable having temperature different at different location from gland side inthe case of 11KV feeder of 275 kv substation. why ?
what are the settings is there for ABB REM543 Generator Protection Relay
How to calculate the electrical load for a standard telecom BTS shelter and choose the DG set capacity for the same load?
What is the difference between single phase, 2phase, and 3 phase motors?
why do the core of transformer saturates???