What is the rating factor for copper cable ( Specific value according to the type of laying ) & the voltage drop?

0 Answers  

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how we provide neutral earth on synchronising panel as per electrical standards?

0 Answers  

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Hi I'm doing my MBA(3rd semester).I applied for the post of ET conducted by BHEL the last year.I cleared the written and lost in personal interview.Again I wrote the exam this time and cleared the written n yet to take the personal interview.Shall I disclose in the interview about my studies.What shall i say if they ask about my change from studies to job

0 Answers   Bhel,

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What is the formula for calculating Transformer Losses & Efficiency. I want to compare the Transformer efficiency at different loading condition.

6 Answers   Rays Power Experts, Techser,

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we all know that both the generator and motor are electromechanical conversion devices.....then why we rate motor in kw and generator in kva????

4 Answers   KSEB,

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1. alternator has full load regulation of 4% when pf of the load is 0.8 lag, 1500 rpm. full load regulation of 1400 rpm for 0.8lag will be ________ ?? 2. torque angle of a sync m/c operating from a constt voltage bus is usually defined as space angle between _______ . 3. method most effective in finding out no load losses in large DC shunt motoris ______ . 4. current carrying capacity of fuse material depends on ______ . 5. coil has res. 10 ohm, inductance 1H. what wil be current after 0.1sec after switching on to a 500V DC SUPPL ? ? 6. effect of phase lag compensation on servo systems ___________ . 7. rotor of a dc machine is usually supported upon ______ . 8. DC motor is preferred to AC motor in which application ?? 9. 3 nos of 10:1 Xmer are connected in Star-Delta to supply a load at 230V.the supply voltage must be ______ . 10. voltage source produces max current in which circuit. 11. cal. power, if current and voltage are out of phase by 90 degree. 12. suitable length of Xmission line of power at 66 KV. 13. Which of the theorm helps in simple computation when the load across a ckt is varying ?? 14. what is the adopted line length for power Xmission of power by cables ??

5 Answers   TATA,

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In which iron losses is higher induction motor /transformer

1 Answers  

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why core losses are affected with change in voltege in transformer?

1 Answers   HCL,

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How to use earthing on shipments.

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why we have to particulary use ACB for below ratings,even available of MCB,MCCB with that range ?

2 Answers   QRG Health City, Siemens,

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What is acsr cable and where we use it?

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Why we call cable rating in SQ.mm.If it is 240 SQ.mm how much the diameter possible?is there any calculation ?

4 Answers  

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