Answer / khairul

What are advantages and disadvantages of high-speed
differential protection for transformer?

Answer / jayaseelan

Sealed design,noconservator,no nitrigen buffer
ie.fcompletely filled with liquid,fexiable corugated walls.
life free oil maintenance.

We are getting supply at33kvand it stepdown to 11kv.So Our requirement is 11kv voltage.why we draw 33kv from the grid instead of 11kv?

2 Answers   Birla,

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Is it possible to obtain 480v or 550v in single phase output by giving the input to 230v to a single phase torodial type transformer without using a stepup transformer?

0 Answers  

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there are a transformer and a motor. both are connected to 3phase, 415 Volt, 50Hz power supply. Both are working with induction principles. Then, why, motor is rotating and transformer is not rotating.

8 Answers  

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What is phase angle? and what is importance to measure it?

2 Answers  

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3phase motor 400v (induction) A.C 4kw company design 1400rpm but our requirement 2000rpm possible? attached any instrument. reply fast! contact 03343262442

3 Answers  

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I have a 600VA UPS for computer only. It holds for 20minutes only. 1. Can it be upgraded for longer period.? 2. Can it be used for one ceiling fan and a tube light? If yes, how to upgrade?

11 Answers  

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what is the difference between vector scale and vector diagram?

1 Answers  

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How can we calculate the current if we have load in KVA and if the load in KW then what formula will be use for calculating the current. please give both the formula for calculating the current.

3 Answers  

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Why only mesh earthing is used in G.S.S.?

2 Answers  

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what will happen when ac is applied resistor,inductor,capcitor?

1 Answers  

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1000kva = how much kvar

3 Answers  

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how to mesure the earth pit value and what is the minimum value of single earth pit?

3 Answers  

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