draw the restricted earth fault protection circuit install on power transformer and identify its parameters and draw C/C curve of it

2680

CAN CU XLPE/PVC CABLE BE USED INPLACE OF LOW NOISE SCREENED CABLE? KINDLY GIVE REASONS

1827

700KW 6.6KV slip ring induction motor to use VFD to control the speed

3160

How generator NPS(NEGATIVE PHASE SEQUENCE TEST)TEST WAS DONE? PROCEDURE WITH DETAILS?

2170

Why PT voltages are measured with respect to ground? What do u mean by voltage or current polarized.

2319

how to revers the direction of single phase motor

923

What is the angle of inclination for the oil connection from transformer conservator to Bucholz relay and why?

2175

What range of speed can you get with the field control method of speed control of d.c. Shunt motor?

1107

How to calculate capacitor bank value to maintain unity power factor with some suitable example?

1071

What products have you designed which have entered high volume production?

2025

How calculated single phase induction motor req. Capacitor?

1536

how freewheeling diode improves the powerfactor

5370

I have an existing old MCCB. ABB Model SACE, the rating are: Ue = 660 volts, Iu =1250 Amps, 3 poles, Ith (max) =800 amps at 45 deg C. I need a circuit breaker for my 3 phase motors, 380 volts 60 hz. the supplier required the minimum ampacity of the breaker to be 911 amps. can i use this breaker with rating of Iu =1250 amps but Ith = 800amps maximum?

2258

Why cables and busbar both needed in LT Panels?

2143

how can we save enegry by using VFD for Resiprocating Air compressor which is having more unloading running hours

2254