Answer / prashant

strictly earth resistance must be zero

Answer / shiva

good earthing less than 3 ohms

Answer / ilango

earth resistance value=0 to 10 to 100 to 1000 ohms

What is IPXX?

2 Answers  

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what happend if the protection ct is by mistake put instead of measuring ct & vice versa?

2 Answers  

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Can any one know what are the symbols at the down (below) the analog ammeter??? there are 4 symbols which are they ?????

0 Answers  

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A 400KVA Transformer has 400Hz frequency.if frequency is changed to 50Hz,then what will be the new KVA rating?

2 Answers   ABC,

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whydoes the p.f of diesel generator always be 0.8 explain how will you determine the shortcircuit capacity of network

1 Answers   Dalkia,

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Purpose of lighting transformer.

2 Answers  

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Why are calling leading power factor is a capacitive load?

1 Answers  

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Which are resistive loads & which one are inductive loads : Refrigerator, Split air conditioner, ceiling fans, well pump, fluoresecent bulbs, T.V, CRT Monitors, Adsl Routers, C.P.U, Printers, Deep Freezers, Speakers, DVD Players, Microwave oven etc. ? Output Power for these Appliances Would be same like this : P = V * A * P.F Or would be changed ? thanks

0 Answers  

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What is a thermocouple, and it working principle?

2 Answers  

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What happens when DC supply is given to transformer

4 Answers   CESC, IBM,

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WHY DOES NEUTRAL DO NOT CARRY EVEN THOUGH IT CARRIES RETURN CURRENT?

3 Answers  

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how do you test the capacitor bank ?

12 Answers   Essar,

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