Answer / m.kumaran

while the motor runs from rest position the resistance of winding is very low so the motor gets more current.it will damage the motor winding so aviod this we use some starters for limiting the starting current.

What is potientometer.How it is useful in a sychronoscope.

1 Answers  

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Single line diagram for dbb (double bus bar)system.

0 Answers   KSEB, L&T, Siemens,

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11. As per the theory current doesn’t flows in Neutral, but practically it is not applicable, explain why? 12. How to take the Vector Group Test in Transformer? What is the purpose of doing Vector Group Test? 13. Why the transmission lines are in 11kV, 22kV, 33kv, and why not 10kV, 20kV, 30kV? 14. Why do we generate 3 Phase AC Supply? It is possible to generate 4 Phase and 5 Phase explain it? 15. Explain why the Voltage drop will happen in 3 Phase line? 16. What is the equipment used to control the generator output? 17. What are the factors to be considered during the Synchronization? 18. What should be value of Circuit breaker operating time and tripping time? 19. Why the CT Secondary is rated as 5A generally? 20. At which time Synchronous generator act as a Synchronous Condenser?

1 Answers  

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How can calculate the efficency of the rectifier. input 240V AC, current 5 amps,P.F 0.98, Output is 54 V DC,62.6 A.

10 Answers  

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HOW WE CALCULATE CURRENT IF THERE ARE NOT PRESENT ANY AMMETER OR MULTIMMETER??????

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can indirect loading be called as phantom loading?

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Why single core cable required bonding at double end.

1 Answers  

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3phase motor can be used as a Prime mover for alternator.

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what is LDR used in street light

2 Answers   Cipla, Ram Infotech, Wipro,

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I want to know the principle of rotating flux transformer.

1 Answers  

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Hi, We have have the major losses between BBT ( Bus Bar Trunking) to LT Incomer & LT to HT incomer, how to arrive the losses?

1 Answers  

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What is resistance reading of earth copper rod with grid and without grid?

0 Answers  

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