EARTH AND NEUTRAL ARE JOINTED OR NOT?

7 Answers  

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what is the difference between 2phase & 3 phase?

1 Answers   NTPC,

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How many gap between finger contact in a.c.b. and v.cb.?

0 Answers  

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How the soft starter control the starting current in three phase squirrel cage AC Motor?

1 Answers  

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what is positive , negative & zero equivalent system resistance

0 Answers  

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What is IDMT relay how it works.

3 Answers   Electrotherm, Sulzer,

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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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Who we calculate the generator NGR resistant, generator voltage 11 KV ?

2 Answers   ABB,

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I have 30KW Motor Starter Panel, System voltage is 480V, So i have to convert voltage 480 to 220V to give the contactor coil. How i can select control transformer, Which rating transformer i can use this panel, what is the procedure, please tell me.

2 Answers  

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In a Dyn11 transformer, how are the 3 windings of the delta connected? Assume that R1-R2, Y1-Y2, B1-B2 are the 3 windings on the HV side.

3 Answers  

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What is the name and type of power transformer oil?

4 Answers  

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in the farm,water tank of 8000 litter capacity situated in 12 meter above.Farm owner want to lift 7000 litter of water within 7 minute to water tank of 12 meter above.which motor having HP rating is suitable for pumping??

1 Answers   ABB, Anchor, Havells, Keltron, KSEB, L&T, vguard,

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