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
2034Why 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 5758in 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 3341can you use 400 volt 3 phase and neutral and earth equipment on 440 3 phase and earth supply safely and if so how?
2 7240iam 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 3694how to testing the AC 3 phase motor? and what is the test procedure & kits required for testing?
3 7224what is the working principle of contactor and conditions of normal open and normal close on it?
EEE,
3 28669if 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
21041 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 5922Post New Electrical Engineering Questions
Name two low frequency oscillators?
explain supply side and demand side energy management with advantages & disadvantages
2. A current i=(10+10 sin t)amperes is passed through MI type ammeter. its reading will be.........
What should be the protection scheme for a 15kw, 3-phase motor working in a lathe machine.
If Dg set load increase 25%, How much increase fuel Consumption (15 kva 2 cylinder DG set)
What is the meaning of utility ground and clean ground? How the distribution panel is grounded?
Brief working principle of stabilizer,application & safety precautions
Where can I get Iidian straderd specifications for electrical items or works in web? please help me.
Why can't we parallel Voltage transformer secondary circuits?
define hysteresis loss, eddy current loss and windage loss
1.main parts of generator? what is used A-check,B-check,C- check? 2.what is FM200 system in data centers? 3.difference between pac,ahu?
we have require a Motor (1500kW, 6.6kV, 50Hz) which shall operate at 1500rpm during 30min and after it shall run on 500rpm during 15min. The same cycle shall be repetitive during the whole working days. Which method is best and economic to achieve such type of task. VFD, VVFD, Pole changing motor etc.
1) What are your personal strength? 2) What are your personal areas of improvement? 3) What are your expectations from from a particular job? 4) what are your carrier objectives?
is it possible to say motor horsepower number without seeing name plate(when name plate damaged)
what is the formula of starting current of 3phase and 1 phase motor???