Answer / laxmikanta sasmal

this is depend on load data,distance from source,laying method

can we use trip light with bus coupler?

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why the the electrical machine coil are damage ? How to prevent it?

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how can we find CT coil not working ?

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Explain M Var? Which types of problem occurs when reactive power increase at the time of full load of plant and at the time of synchronize of plant?

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In Power Line Communication (PLC) the wave trap is used to block communication signals from entering neighboring lines. My question is this: Why do they allow for different filtering arrangements on these wave traps? Isn't it always going to be a low pass filter since we want the power frequency to go through, and the comm signal blocked?

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What will be advantage if we put some load in neutral of grounded star transformer & loadshortcircuit current,rated current of cable & MCB with example?

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i need circuit star delta connection?

1 Answers   L&T,

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why we are using DC supply for all protection relays, why cant we use AC supply..???

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if the magnetic lines can pass through a vaccuum area

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what happen when ac motor is connected with dc current

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How can I calculate the fault level of a transformer. 1. If fault is 3phase fault 2. If fault is 1phase fault 3. If fault is 2phase fault Dear all geniouses, can you help me by giving answer. If anybody want to send something then mail me at "msalam_shahin@yahoo.com"

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how to work droop ct in generating station

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