Why synchronous motor is used in power factor improvement,dc series in lift

1663

Control cables in S's will carry 1000v which is AC R DC? Pls answer me 

2154

to hook up ten 50 amp rv pedastels at a lenth of 600 feet from the service what size will my service need to be and the size of wire will I have to run to each pedastel in series??????

2090

what is advertised hop count

1775

Mention the disadvantages of low power factor?

1130

We have a couple of oil tanks at our plant. One of them does not have a lightning arrester installed. My question is it necessary to install an arrestor on every tank or will this particular one be covered by the arrestor installed on the ajdacent tank, Since all the tanks are close to each other. Basically, I want to know that if these arrestors or protection works in a parituclar area of effect or influence. Thanks

2054

sir please tel me how calucalte kwh if home taken load 30ams how maney kwh taken per day.and 3phase motor 5hp per hars how maney load teken and how mach kwh and forward me to electrical table for calicalte kwh and kvr and kvah

3975

Why only sinusoidal ac voltages are generated?why not triangular or sawtooth?

2092

3phase motor can be used as a Prime mover for alternator.

1603

what is data block in plc ? How the values of data block are written and read by hmi ? what is the difference between function and function block ?

3419

TELL ME WHAT IS INDUCTOR AND CAPACITOR WHAT IS IT BASIC OPERATION ANDFUNCTION?

2018

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?

2314

What is the distance between each insulator in 33kv transformer and how can it calculate

2184

WTA used cb?

1925

can i connect the two phases of scott connected transformer,if not why?

1973