what will be the efficiency off x'mer during no load test and during short circuit test
As per principle we say in three phase supply ,the voltage is producing by phase angle between two phase so two phase is needed means then why we using three phase ?
if we use contactor & MCCB both in a feeder.in this feeder rating of contactor is higher or lower or same of MCCB rating & why?
IN CONTROL SYSTEMS Y WE NEED TO KNOW THE STABILITY OF THE SYSTEM?WHAT IS ITS PRACTICAL USE?
what is the purpose of fuse?
In a 11Kv/433Volt Delt-star step down transformer one one line(Line-B) of HT site is open & earthed on DP structur. What will be the voltage on LT side R-Y, Y-B,B-R and R-N, Y- N & B-N?. Please help to understand the problem with examples. Arvind , Jaipur.
what will happen if ac motor given dc supply?
what is protections used for 6.6kv ht motor
In view of Electrical Engg. What is the use of SCR(Silicon control rectifier)
advantages of vvvf drives over non vvvf drives for EOT cranes
How will polarity test of Dy5 Transformer ?
what is the difference between main meter CT and check meter CT?and what is the difference between main meter PT and check meter PT?
75kw drive operated motor current fluctuation from(85-130)ampere.current setting in drive is 130amp.sometimes motor trip when current limit cross 130amps.I change the drive. still current fluctuate between 80-130amps but in this time motor not trip,current setting in drive is 130amps.where is the problem?
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