10 Mtr Hight of Lighting Arrestar how much area coverd??
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How to measure 20 hp motor resitance
1) name the communication cable and how it is communicate in between plc to modbus , plc with hmi? 2)name of the communication cables?
lamination figures
What is the difference between Isolator annd Circuit Breaker.
21 Answers ABB, Lanco, NTPC, Power Grid, RInfra,
Dear all, how we select the cable size according to current with or without including different correction factor , is there any direct method for sizing of cable...
How will A Medium voltage circuit breaker(11 kV voltage level) operate under short circuit fault condition whether It is having short circuit release like Low voltage circuit breaker or relay should be given?
what is phantom load, Give any example
hi.. i am krishna. i've complide my diploma engg.in electrical.i applied many places for jobs.but i am always fear from written test.ican't get success in it. i think my basic engg. is weak..show me some idea please..!
how to determine the inrush current of a transformer
During the main stator winding insulation testing (phase to ground)of 11kv alternator (Lerysomer) i found 0 and resistance with multimeter and found 20 killo ohm while the power cables are connected both end (Generator & VCB). In VCB PT (Potential transformer) are connected. Please any body explain that method of insulation is correct or not? also describe of PT connections
lorteny method
Some times to change of DOR of a motor, interchange of R & B is not effected and RYB take same current, but interchange of R&Y is effected ie change the DOR. My doubt is what is the problem in motor and how it is happen.
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