Answer / sachin

there are two types of transformer namely
1 instrument transformer
a-CT
B-PT

2-POWER TRANSFORMER
a-step up transformer
b-step down transformer

What the purpose of transient fault recoredr in substation

2 Answers   NCC,

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A TRANSFORMER 440/400V,DELTA/STAR CONNECTED.THE NEUTRAL CONNECTED WITH GROUND CABLE THAT IS DIRECTLY CONNECTED TO THE PANEL,FROM PANEL IT IS CONNECTED EARTH PIT.IS IT RIGHT? IF IT IS RIGHT LEAKAGE CURRENT AFFECTED.SECONDATY IS PROTECTED WITH EARTH LEAKAGE RELAY.

0 Answers   Jindal,

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how to calculate the distance relay faulty zone?pls explain?

0 Answers  

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Do any one know exacatly when the results for NHPC held on 8th march 09 for engineering trainees will be released ?. if so please post it, i'm eager to know it.

0 Answers   NHPC,

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what happens to the speed of a DC series motor when series field winding is removed?

8 Answers  

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what do you mean by type zero control sytem ?Give an practical example of type zero contol sytem?

0 Answers   Bhel,

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What are test values for an 63 KVA and 100 Kva Distribution Transformers for the following typical tests 1)Magnetic balance 2)Short circuit test 3)Open Circuit test 4)Vector group confirmation test .please give me the standard values for all the above tests.

0 Answers  

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How we do the maintenance of Servo motor, even we cant open it?

0 Answers   ITC Infotech,

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Why we are not using capacitor in line when load on Genset?

3 Answers  

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design of IGBT firing circuit for 11KV

0 Answers  

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What is the meager?

6 Answers   ABB,

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what is meant by IGBT how they differ from tyristor ?

0 Answers  

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