how to find out cable size if load is 2800 watts, 230 volts AC supply and load distance is 1800 meters295
What is making & breaking current ???
My load is 1635 KW. & current pf is 0.884, I have to improve it for 0.99.Please suggest what KVAR value is needed?286
What value of resistance required between Saftey earth and instrunment earth , maximum and minimum values required1 521
1 HT service how many LT Service1 605
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?
Why sometime AVR and sometime Booster coil is used in Alternator? what is the diferance between AVR & Booster coil due to which they are selected
We have 750KVA DG set, we want to introduce REF relay with 1250/1A,CL PS,Current transformers.The lead distance of 2.5mm copper flexible cable from CT to relay is around 5mtrs.We would like to know the knee point votage(VK) & IM calculion for CT's
What is the name of the winding from which the supply is taken for load connections?
dg started in plc mode and load taken later one battery terminal connection will be disconnected by loose connection what will happen for dg and shall we connect battery terminals while dg in load time?
what is meant by 3rd hormonics ?
What is the difference between 2 wires RTD's and 3 wires RTD's.Kindly explain the wiring diagram.
In Indian Household, generally we receive 220V AC single phase supply. But AC has 2 phases, +ve & -ve. So in +ve half cycle current is flowing...so what happens in the -ve half cycle?? Please illustrate.
Why derating factor os applied on Cables?
What is the effect on Power factor and capacitor when your company load is more than 70 % of welding transformer
What is Bolted fault?
why lightning arrestor are made in two stack of insulator but why not cvt
what is under coal gassification?
Explain the experiment on ward leonard method of a speed control on a dc shunt motor with an suitable circuit diagram.
why Lightning arrestor are made by 2 seperate stack of inslutor but why cvt are in single stack of insulator.