why do we prefer -48 volt instead of -24volt or -12 volt
etc. ??
what parameters should we check to reduce the power bill
what is the current limit of lighting arrester ?
what is volt drop formula?stm
what is difference between low voltage and high voltage
In DC current-excitation to transformer, why it sucks more current? Eventhough there is no power transfer between primary and secondary? R is very low so it should suck less current only na thn y its current increases?
which is the most common harmonics 3rd,5th,7th affect the systegm
If we are given a 10 amp cable type and asked to calculate the number of cores used and the thickness of the cable, how do we do it?? please help...urgent!! i hope the question is clear enough!!
30 kVA and voltage 380/220VAC how to find out kA?
why the rating of transformer in k.v.a
what is circulating current in parallel transformer???plus how it is generated ???plz explain in detail.........
List of equipments required foe industrial repair lab.
how the transformer stables out zone faults? Because we use non directional O/C relays .Is there any special considerations are taking into account to overtake this?