Answer / k.prakashchandra

UPS using generator and a prime mover instead of battery for
back-up power.

Answer / k.prakashchandra

UPS using generator and a prime mover instead of battery for
back-up power.

what is the difference between core & shell type transformer ?& where we use those transformers ?

10 Answers   BNCET,

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hi friends how 3 phase converter functioning ?what is working principle of rotory phase converter ?

0 Answers  

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how to select the mpcbs and contactor for 3 phase 30 hp star delta motors.for plc control.and tell me the calaculation for future use.

0 Answers  

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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 dc Supply used in Control circuit.

12 Answers   HP,

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Write down the brushes of a de machine.

0 Answers  

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Procedure for conduting vector group test on power transformers.why it is conducted?

6 Answers   Grasim,

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what is counter poise conductors

0 Answers   IBM,

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what are the main parts of DG? explian thier functions?

8 Answers   Apollo Power, Tata DoCoMo, Tyco, Vizag Steel,

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Readings of ER300P Trivector meter

0 Answers  

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what is the radio of kva & kvar or why calculated kva & kvar

3 Answers  

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What is meant by positive and negative feedback?

0 Answers  

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