What is difference between earth leakage relay and restricted earth fault relay ?

22 Answers  

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What does “battery of 180 AMP HOUR” mean to you?

2 Answers  

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what is PWM in IGBT and how it works for drive.?

0 Answers   BRG,

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What are the electrical engineer roles and responsibilities in chemical plant?

0 Answers  

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what's the reson that,Load is not same on VFD I/P and O/P Side.whenever DOL condition load is same I/P and O/P side.

1 Answers  

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an amazing situation was faced when an alive distribution panel with 415 volts and carrying almost 200Amps has become short and this metal cubical showing 220 volts against neutral and earth. to redress any confusion i checked the panel with help of single 200watts test lamp which also glowing with max.intensity b/w neutral & metal body of DB. amazing situation is that i hold the DB firmly more than once with necked foot means without insulated shoes but not received any electrical shock. whereas our all running gen sets neutral points also proper grounded and this short DB was completely earthed , this is beyond my understanding . any body explain how is it possible . our running gen set neutral also grounded firmly

1 Answers  

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How the value of KVAR of capacitor bank used in switchgears calculated??

2 Answers  

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how we can adjust for three phase motor cold stall time ,hot stall time and thermal register set up?

0 Answers   OPS,

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what is ratio of copper wire size and current ?

0 Answers  

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If a transformer primary winding operates at 240v, the secondary at 120v and the load is 1500w & the transformer is rated at 92% efficient, what's the current flowing through the primary winding of the transformer? What is the formula for finding this?

0 Answers  

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Power Factor Controller

1 Answers  

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how to checking earth restence with earthtester

1 Answers   NTPC,

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