what is the difference between contactors & relay.

2 Answers  

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how could we calculate the no of outgoings from a 800 watt distribution board

0 Answers   United Engineering,

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What is surger vector in 33Kv transmission feeder? We have AC power generator of 8MW which is paralleled with 33Kv EB grid. Some times our HT breaker gets trip off due to surge vector problem. How to over come it? Is there any device to observe the surge and avoid tripping?

3 Answers  

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What is the differance between 2 dc motors of armature voltage 660 v and 440 v?

0 Answers   Kirloskar,

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show me the diagram of three phase wiring and also tell me hoe to take the readings of megger testing

2 Answers  

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what can i do line to line fault

4 Answers  

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What is the SCR system in drilling rig.

2 Answers   Weatherford,

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what is difference between vaccum circuit breaker and air circuit breaker?

2 Answers  

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sir please send me previous year questions of jspl through which i could prepare myself fpr the test.

64 Answers   FGH, HFT, Jindal, Jindal Steel and Power, JSP, JSW, Lin Engineering,

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DEAR ALL I have motors ( 10 units )each one is 90kw 380V 50 HZ 1000rpm but new local pwer is 220v 60 hz requierd rpm should be 1000 pleas what the beast solution is used frequncy converter or rewinding all motos or chang all motors thanks

6 Answers   GE,

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why in america the supply frequency is applied as 60 HZ. but in india we use 50 HZ.

1 Answers   Elcom International, HCL, NTPC, OMC,

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what is ASCR cable and where we use it?

6 Answers   BSL,

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