What is stray current in DC Traction?

2 Answers   L&T,

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What is the meter used to check the DG sound level.and pollution check

2 Answers  

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from which subjects most of the technical que will b asked for hpcl(electrical).pls help me

0 Answers   ABB, HPCL,

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Ferranti Effect says that voltage at the receiving end is higher than that at the sending end. How is it possible?

4 Answers  

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What is the range of efficiency of thermal or steam power plants? Why it is so low?

2 Answers  

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ELECTRICAL ENGINEER TEST IN FEWA ANY ONE HAVE KNOWLEDGE ABOUT THIS?????????

0 Answers  

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In parallel operation time both NGR’s close or not close if both close what will happen

0 Answers  

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what is split phase ac system?

3 Answers   AMIE,

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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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Why the rating of dc machine is in HP??/ Do reply guys..Its very important......

4 Answers   Apollo,

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For these 2 devices what their power ratings are ? 1) single phase : AC 220V & starting amps 3Amps (i.e. starting torque) and the stabilized amps 2A ... For deep freezer 2) single phase : AC 220V & starting amps 2.7Amps (i.e. including the starting torque of a CRT monitor) and the stabilized amps 1 Amps thanks

1 Answers  

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what is the clear formula to calculate cable size for a load

0 Answers   TCS,

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