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How to know of any cable size if there are not written on cabl?
Can we use shunt trip coil instead of trip coil with protection relay for protection?
what is the difference between 50 hz freq. and 60 hz freq.? which is better and economic in them ?
I am having a 1500 KVA transformer whose secondary current is 2086A and my connected load is 1000 KVA, I am having 400 KVAR APFCR for PF improvement what ratio of CT should i install in LT EB Bus to get optimum PF improvement?
What is the rating of circuit breaker needed for 300 KVA load in 33 KV supply line in a transformer of 33 KV / 415 Volt ?
the problem faced on star or delta winding connection??
upto how much low RPM we will run the commercial motor which is run through VFD without any problem occurs in motor.Motor rating Duty is S1 & RPM is 1400.
sir, 3phase induction motor takes different pf and different KW in three phase while running,explain reason
How to assume answer to electrical questions
I am inpecting a 10kVA UPS what tests should i do and should i observe?
Why only sinusoidal ac voltages are generated?why not triangular or sawtooth?
How the setting of the vector surge relay shall be calculated when the relay is to be used for Grid islanding application?
How many types of interlocking use in screw type air compressor,make-Kaser(BSD MODEL)?
I want formula to calculate current loss with distance in km.I searched many sites but didn't right answer.Plz reply me
What is systematic error?