why two contacts(in series) are using in closing circuit

3 Answers  

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In Railway,why we are used HT Line 25KV ?.why we are not used 11KV,33KV and others for This?

37 Answers   Airtel, BSNL, RRB,

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is the secondary voltage of current transformer greater than primary voltage,,,,,,,,] give the example with ct burden,current ratio,and primary and secondary side voltage?

2 Answers  

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what r the tests on the 3 phase transformers can any one explain how to test using megger on transformers thx

2 Answers  

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quantizer means?

0 Answers  

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a.)Ammeter and Voltmeter read rms value or avg. value ? b.)What are symmetrical and Unsymmetrical faults?

2 Answers  

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what is Aircraft earthing and what does it do?

6 Answers  

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the resstance of a thermistor is 5000 ohm at 25degreeC and coefficient is .04/degCel. A measurement with lead resitance of 10 ohm will cause an error of

1 Answers   GATE,

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What is the role of Tertiary Winding in Transformer ?

2 Answers  

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Hello,l am complete dip and i was working maintance in ht dep again i study b.e completed again one year exp in ht totally two year i am ealigble in c license

1 Answers  

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. Is there a simple method to measure the horsepower of a small motor (1-3 hp) for a non-technical person

2 Answers  

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Why dc Supply used in Control circuit.

12 Answers   HP,

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