HOW CAN YOU CALCULATE PRACTICAL EFFICIENCY OF A ASYNCHRONOUS INDUCTIONMOTOR OF 7.5KW,& MOTOR IS RUNNING WITH AVOLTAGE OF 410 VOLTS,& TAKING CURENT OF 13 AMPS

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we use 3 phase supply for induction motor why not use two phase supply .

4 Answers   TLC,

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wat will be the pressure maintained inside the transformer?

2 Answers  

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Why 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 Answers  

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Sir, I have applied for the of Assistant.engineer of NPDCL. please send me all AP TRANSCO AND JENCO solved papers of previous exams . I requested send me the papers to my id as soon as possible (rajanikanth_peddi@yahoo.co.in) (This is very urgent) Thank You,

0 Answers   APTransco,

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What is the accepted limit to increase the choosen transformer capacity over the load and why ?

2 Answers   Asec,

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Dear all i want to know SEWA Electrical Supervisor Licence test Previous Year Questions ? If any body know please send to me zohairaukllah@yahoo.com

0 Answers  

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what are fluorescent lamps (fluorescent fixtures) & what are incandescen lamps (incandescents fixtures) ? differences between these two ?

1 Answers  

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Hello Can I use step up HV transformer 440/4160V as a step down? Thanks Evgeny

5 Answers  

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what composit error,ratio error,phase error in CT and PT??

4 Answers  

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how to select electrical equipment such as fuse,dg,transformer,motor,msb,wire,cable as per the connecting load..please mention any books to design,take licence

0 Answers   Gujarat Electricity Board,

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what is purpose of using reactor in substations.

20 Answers   Heavy Engineering Corporation Ltd HECL,

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