Answer / msnitishkumar

Contactor rating is 200% (for AC )and 400% (for DC )of full
load current

Different STANDARDS (BS, IS, IEC etc) gives different informations on CT specification. How they correspons w r t each other (i.e I mean to say BS provides "knee point voltage" but IS does not, then how can i select CT)

0 Answers  

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In Siemens S7-300 PLC, what is funtion and funtion block ? What is the difference between them ? When to use function and when to use function block

2 Answers  

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In the Load Test of 3 Phase Squirrel Cage Induction Motor, 2 wattmeters are used. One of the wattmeter deflects in negative diretion during no load. Why?

1 Answers   CAT,

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Which motor runs on both ac and ac? a) dc series motor b) reluctance motor

2 Answers  

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what is the need of reactor in between the transmission line?..like powergrid like that..

5 Answers   Delta Roto Tech,

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what is the function and use of oil filled cables specify its advantages and disadvantages

7 Answers   Alstom,

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Which type of transformer is used for lighting loads?

0 Answers  

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In the Variable Voltage Variable Frequency Drive, how the Voltage and Frequency varied ? Is it varied in the Inverter part of the Drive ? Please give us supporting document if any.

0 Answers  

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What is meant by Guard relay ?

2 Answers  

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Why in power plant projects we see DOL starting method used for motors upto 160 kW instead of star delta method

0 Answers   UCC,

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Basic philosophy of applying 3P tripping for uptill 132KV switchyards & for 132KV & above 1P/3P tripping is used.

1 Answers   L&T,

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how we can know the rating of transmission line by no. of insulators disk ??????????

3 Answers   NTPC,

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