Answer / Shantilal Paswan

A detailed explanation and diagram of how REF protects a transformer alone would require a specific technical document or reference, which is beyond the scope of this response. I recommend consulting relevant resources in the field of electrical engineering for accurate information.

internally connection of photvoltic module

1 Answers  

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Why Powers are named in MW?

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can we check the resistance of earthing electrode while it is connected with the neutral of UPS system

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my UPS is 600VA with 0.6 p.f and i use it for my computer which has 450W power supply unit, a monitor of 633nW and speakers. Can any one explain this.. because the output of UPS should be 360W (<450W)

2 Answers  

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1)What are the proccedure of initial charge of 100AH lead Acid battery bank 2)whether discharge test is reqd ? if it is rqd why, how 3)what are the discharge critieria (volt/cell or sp.gravity/cell

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explain me the relation between torque, frequency,speed,voltage and current in the 3 phase induction motor?

1 Answers  

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How many Zones can be in Conventional type fire alarm system & how can we detect the fire in Conv. type FAS?

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Why is our voltage always seems to be 3.3Kv,11Kv,66Kvetc.. why not 40Kv,39Kv,65Kv???

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How we calculate the current carrying capacity of H.T. cabel?

1 Answers   Bhel,

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what is the use of earthing ?

8 Answers   Electrical Tech,

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What is distance protection relay? where & why we use this relay?

2 Answers   Siemens, UltraTech, Voltech,

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Can anybody tell me how to calculate(formula) earth flat size(for copper and aluminium).

3 Answers  

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