what is different between IP55,IP54 and IP66?

2 Answers   ABB, Global Industries,

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what is the role of reactive powerin transmission and distribution?

3 Answers  

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why we permissive overreach in distance protection.where it is applicable to use in long r short lines

0 Answers  

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Dear sir please mera ye sawaal hai ki rccb ka kya kaam hota hai please answer hindi me dizyega dhanyya waad

1 Answers  

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what is b checks and m checks in diesel generator maintenance?

1 Answers  

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tan delta test of current transformer.

3 Answers   NTPC,

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How to check the thermocouple is correctly connected to cable for K type? (i,e positive pole is connected to non magnetic conductor and negative pole is connected to magnetic conductor)

0 Answers  

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how is working bearing heater?

0 Answers   ONGC,

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is there any pottential in neautral?

3 Answers  

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What are the basic & Majour problems in UPS ?

0 Answers   Roto Power, RotoPower,

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why in some trains in India Electric equipment such as Fans , tube light not work until locomotive or engine is attached to the train ??

1 Answers  

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A genarator is connected through a 20MVA ,13.8/138 KV stepdown transformer to a transmission line. at the reciving end of the line a load is supplied through a step down transformer of 10MVA,138/69 KV rating .A 0.72 PU load evaluated on load side transformer ratings as base values ,is supplied from the above system for system base values of 10 MVA and 69 KV in load circuit the value of the load in generator circuit will be ...........

1 Answers  

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