what is the meaning of number in (11, 31, 61,14, etc. CDG11, CDG31, CDG61, DDT32

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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If a fan get trip and run in reverse direction due to system flow. Now in this condition during starting how can a VFD bring this negative speed to zero and later run in forward direction?

2 Answers   Aditya Birla, Siemens,

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which of the following is the earliest known literary source of ancient india and indeed of mankind

1 Answers  

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Why is it that polarization index type test is required for MV and HV motors and not for LV motors?

3 Answers   La-Gajjar Machineries, Qatar Airlines,

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what is reactive power?, why its measured in VA ? is it transient behavior of system?

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Why need 3phase machine double earthing?

0 Answers  

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how to check the 3ph capacitor is good or not.

14 Answers   MacLellan, Yash Technologies,

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The neutral&earth voltage is 0v.But we were connected the lighting load at the time ballast was failed.why?

1 Answers  

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What is the suitable rating of MCB used for 1.5 Ton A.C & why?

4 Answers  

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what is the cause of voltage dipp or swell in the transmission lines?

0 Answers  

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If my sfu is 64 Amp & its link is 32 Amp then at what amp.my sfu will trip???

2 Answers  

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