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when we gave dc supply to 220v dc motor its rpm is 1200. then we gave 180v. how many rpm of its motor. gave answer with calculation at my ID.... ravizak@ymail.com
2349Why is it preferred to use a wattmeter(s) to measure power in three phase systems rather than using a combination of other instruments e.g. voltmeters, ammeters etc?
2 6363in power station what is the electrical circuit length of spacing between power transformer and lightning arrestors,for the voltage system of 230kv,110kv,33kv,22kv,11kv?
1 3954can you use 400 volt 3 phase and neutral and earth equipment on 440 3 phase and earth supply safely and if so how?
2 8142iam working as a electrical engineer. i want to know about any license or certificates regarding my field. for my carrier and ti improve the knoweledge.,,, how we get that..and what procedures......... pls help me
1 4177how to testing the AC 3 phase motor? and what is the test procedure & kits required for testing?
3 8243what is the working principle of contactor and conditions of normal open and normal close on it?
EEE,
3 29817if any house we instaled a 1.5 ton ac and its phase cable of wiring is installed but netrual cable of wiring not instaed. my question is that is neutual of house(for other wiring is capable for ac load or a sepeart neutrual wiring required
24761 no. 22 kV feeder is taken from state electricity board. 350 MVA is the S.C. MVA. now i am feeding this feeder to HT Panel having 2 outgoings which further supply to 2 Transformers. Can you please suggest me the type & rating of cables are 3 of these cables same? or they are different? please help...............
TCE,
2 6608Post New Electrical Engineering Questions
The 3 phase 400 hp 440 volt slip ring induction motor do not take one phase amps why ? The motor is running good condition
what's the difference between 'shaft power demand' and 'BHP' , when we consider electrical load list.
How can we calculate ac current from the given DC current when AC voltage is given?
Incoming line 11kv And transformer capacity is 2500kva. Consumption load is 1300A. Then fuse capacity is 11kv line.
How to Preparation of online test
what is the difference b/w ground & virtual ground?
when it is possible kvrah lead & fundamental kwh be equal in electonic trivector meters (3 ph)
What is the drawback of class b amplifier?
How we can come to know the substation range,without go through any name plate ?
what is advertised hop count
what are the principles of a booster converter?
what is feeder bay?
Which are resistive loads & which one are inductive loads : Refrigerator, Split air conditioner, ceiling fans, well pump, fluoresecent bulbs, T.V, CRT Monitors, Adsl Routers, C.P.U, Printers, Deep Freezers, Speakers, DVD Players, Microwave oven etc. ? Output Power for these Appliances Would be same like this : P = V * A * P.F Or would be changed ? thanks
What are the site acceptance tests for power cables, DG Sets, LT panels & 30kVA UPS ?
Can anyone please give me the parameters , formula needed to calculate the circuit breakers for building services.Thanks
