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
2143Why 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 5953in 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 3537can you use 400 volt 3 phase and neutral and earth equipment on 440 3 phase and earth supply safely and if so how?
2 7524iam 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 3837how to testing the AC 3 phase motor? and what is the test procedure & kits required for testing?
3 7530what is the working principle of contactor and conditions of normal open and normal close on it?
EEE,
3 28949if 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
22601 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 6110Post New Electrical Engineering Questions
what is the significance of terminal voltage and phase sequence in the operation of paralleling of two generators?
how to measure earth resistance of a substation
What is the difference between type1 and type2 relay protection co-ordination for motor feeders
what is integrated ac contact circuit
CAN ANYBODY PLEASE TELL ME HOW TO DESIGN A SERIES REACTOR FOR LIMITING SHORT CIRCUIT FAULT CURRENT??
The principle of switching circuits for different types of batteries in application of storage systems
what is the function of bearing in dc mchine" and where it is placed
how define the torque in ac drive. from electrical side in the drive friquency ,voltage and current three factor is there.
if field breaker of generator is closed prior to its rated speed on a power generating unit. what will be the effect on generator, unit transformer and starting transformer.
HOW TO CALCULATE THE HEAT AND LOAD OF LT-SUBSTATION WHICH CONTAINS 2*1MVA TRANSFORMERS,LT SWITCH BOARD,MLDB,ACB,BUSBAR,ETC...?
Explain Circuit Breaker Trip Characteristics in detail.
What is clock position of Transformer?what are the clock positions are there?and what is different of them?
What is the meaning of 40X8X2 busbar dimensions for carring load of 400 Amps
What is the effect of atmospheric pressure & Temp; on efficiency of motor? Why NGR(Neutral Grounding Resistor) is used in 132/11 KV Transformer & how? What is the use of Auto T/F in Grid Station?
State and define norton’s theorem?
