Which Programming software are use for Allen bradley PLC's?
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What is FTA card? How it works?
what is Insulation monitoring device. where it is used? (in switchgear room or control panel or in field equipment)
Is there any question in the name of Static Switch in UPS??
What is called grain-oriented laminations?
What is vacuum circuit breaker.define with cause and where be use it device?
WHAT IS THE FORMULA FOR CALCULATING CURRENT RATING(DIRECT IN GROUND OR AIR) OF ARMOURED(XLPE) CABLE OF 4C,16Sqmm?
why all the feeders are designed in a particular manner ... is there any reason for that???
please give some hindalco placement papers for written exam
What is transformation ratio what it describes?
What will happend if given Vfd out put to step up transformer
How to know any size of cable if there are not written on cable? Answer must be theurical not by experience.
is there any current and voltage drop on liquid resistance starter water/soda tank ?
i am an maintenance engineer. one distribution board have 5 feeder. recently its ELR trips frequently, but it take some times after trip( 10min,20min..)but 3 feeder no load. two feeder only loaded. i checked one feeder IR value all values are above 50Mohm.but B phase to Earth is only 9Mohm.any problem about low value
oil cooled transformer
Why a Permanent Magnet Generator has higher frequency as compared to frequency of main alternator?