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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 8141iam 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 8242what 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
What are the basic & Majour problems in UPS ?
In India the supply voltage is 230 volt A.C. During the negative half cycle phase becomes neutral and neutral become phase? or what will happen during negative half cycle? how the electrons flow during positive and negative half cycle?
Two liquids hot and cold in two vessels are there and an metal bar acts as a conductor of heat between the two vessels. what happens then. what happens after 24 hrs?
How can you sized or estimate the ligthning arrester current rating?
Briefing the effects of ASR and ACR of a double closed-loop speed regulating system.
Why r u using pf panel. what the uses
what about GD square and its important for motor design?
100 MVA 3-phase alternator with earthed neutral has a reactance of 5 ohms per phase. what will be the fault MVA of generator.
difference between main metering kiosk and check metering kiosk
Write the analogous electrical elements in force voltage analogy for the elements of mechanical translational system.
Wind mill
please send me privious exam's queation papers of section engineer(electrical).
Dear sir, How to calculate 3.5 core pvc aluminium armoured cable meter wise carrying amps rating.Please give the solution with a good example.
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What consists of 2 or more thermocouples to be connented series?
