What can make the the overloads operate when a star delta
three phase motor starts?
what is the difference between directional & non directional earth fault with example please explain.
I have 11KV/415V power distribution transformer. I have found unbalance current in LT (415V) side. Also observed that unbalance voltage (3V) at LV side due to HV side unbalance voltage. What should I check for this? Also, the same LV side load can run in balance on captive power.
How to calculate the current carrying capacity of sized cables, and there is any formula. please send to 'than.achu@yahoo.com'
in 220 kv substation,what is the mean of avr voltage reading? means at oltc temp. 36 the avr voltage was 109v.so what the mean of 109v
when u are given a timer,push buttons and contactor, how do i practically make a star delta control circuit and a direct online control circuit?
which is better VCB or ACB and why?
How can we select suitable capacity generator for three phase load (inductive load) and how to take study analysis in 3 three phase load system ?
how the speed of the gets motor regulated. does it draw the same current on the all speed level.
what is the difference between multimeter and megger?
what is the effect of back reactive power on the generator ?
What is magneto on a gas generator. how it functions. its out put is d.c or a.c. how it can be checked for correct functioning
in a distribution board,if we have a load and we have selected a cable after making all calcs (Deratings and V.D , ect...) the cable we have selected was 10mm.sq. now, shall the internal cable inside the switchboard should be 10 mm.sq Like the external or it can be Less???? if somebody have an specs or information he can help D:
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