why high speed tripping relay will be used in tripping circuit why not normal relay

819

How to choose size of the cable w.r.to current carrying capacity ...

1674

how indusrial diesel generator work

1451

is it possible to say motor horsepower number without seeing name plate(when name plate damaged)

1578

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?

1770

Can anyone provide with a SLD for HT panel installation for a 33KV line and distribution end has three 1.5MV transformers. Is it suitable to use OCB or VCB and also provide me the suitable rating and its connection diagram.

2879

what is the difference between dry and wet type of 132kV terminations. which one is durable

1544

A mass of 1200g is accelerated at 200 cm/s2by a force. The value of the force required is:(a) 2.4N(b) 2400N(c) 240 kN(d) 0.24N

2115

what is the need to express current and voltage in rms value? rms value is also called as effective value,what is effective value?

1476

What is the complete procedure of erection of electrical panel in industry

1364

What are the necessary components of the feedback control system?

717

Witch do depand of Power factor and theory of power factor?

1643

What is lc oscillator?

710

The moisture in air will condense at

667

Why 11kv to be generated in generation station

1244