what are the different types and applications of compressors?

1 Answers  

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How the electric train gets the supply of electricity? What is the return path of the current?

8 Answers   Siemens,

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400Kv,can it be generated?why?

2 Answers  

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how to increase or decrease speed in DC shunt motor by DC convertor

0 Answers  

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all interview questions with answers of ntpc (2000-2009

0 Answers   Hetero, NTPC,

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What is the Difference between Power Swing and Out of Step?

1 Answers  

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For 35 HP motor how much amount of capacitor should be on in kvr to reduce the current bill

1 Answers  

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what is Thermocouple? Type of its.

2 Answers  

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what is mean by marshalling box in transformer?

8 Answers   Reliance,

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The exciting current of a transformer is non sinusoidal. why?

2 Answers  

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We have a 12MW power plant & we inject 5-6MW power to Orissa GRID. For this we have a 33KV/11KV switch yard having 12.5MVA power transformer. Some times we draw power during emergency. It is observed that during Export or Import for load less than 500Kw the power factor is decreasing to 0.3 . This is happening only during export or import. During island condition TG power factor OK.Our capacitor bank is provided with our Power plant auxilliary load. Please suggest how I can we improve our power factor during low load (GRID).

3 Answers  

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What are the specifications for conducting earth leakage test as per IEC standard?

0 Answers  

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