Answer / kc ng

Normally for transformer oil temperature >80deg = alarm.
if oil temperature >90deg = tripping of VCB.

how to calculate the distance relay faulty zone?pls explain?

0 Answers  

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1.two coupled coils with L1=L2=0.6 H have a coupling coefficient of k=0.8 the turns ratio N1/N2 is......

5 Answers   BSNL, SSC,

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I am EEE student i want to improve my core side skills.how cn i approach it?

0 Answers   Suzlon,

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Is it true that in the 3 phase transformer, the limbs of the core are at 45 dgrees to each other. if true, why?

0 Answers  

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What is primary distribution and secondary distribution of ac power?

3 Answers  

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How many power required for 1.5 to Airconditioner?

1 Answers   College School Exams Tests,

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whats the reletion betweet flow,pressure,head,rpm and motor rating?

1 Answers  

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HAI,HOW TO SET THERMAL OVERLOAD RELAY FOR DOL STATRTER FEEDER AT START AND RUNNING?

4 Answers   L&T,

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what happen if position of GNA and MNA is changed in machine?

3 Answers  

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I have a shop heater with a 1/3 hp capacitor start, induction motor driving the fan. Intermittently, the fan motor speeds up significantly for several seconds (15-60 sec) then slows to normal operating speed. The manufacturer suggested changing the capacitor which made no sense, but I did it to no avail. Could this possibly be caused by the centrifugal switch intermittently reconnecting the start winding?

1 Answers  

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What is excitation?

2 Answers  

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During the testing of Electrical Equipment the test cables should not touch the equipments. For that testing engineers use to cotton rope to hang the cable from measuring Equipment to testing equipment terminal. Please explain the technical reason for this practice.

1 Answers  

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