Why open circuit test of transformers is conducted at rated voltage??Why not any other voltage??

0 Answers  

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What is the ladder circuit?

1 Answers   Mitharg Information Systems,

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We have three 33kv substations. All of them energised by same source.When i am checking the phase sequence between one substation to other substation (like R Phase to R Phase) by multimeter i am getting some voltage.Near to LT panels UPS panels are there. Can u explain whether any possible to happen like that. In Phase SEquencemeter is showing correctly in both substations. How is it happen. Explain me.Explain me communication signal will produce Phase difference on this case.

3 Answers  

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1.what is surge used in power system 2.what is switching used in power system 3.what is lightning used in power system

1 Answers   Areva,

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Why the output of generator varies eventhough the shaft speed is constant in thermal power plant?

5 Answers  

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What is Phasing out test?

1 Answers  

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How to calculate ant test the burden of Current transformer

0 Answers   NTPC,

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1600 KVA ka transformer hi aghar lt side par 800A aur voltage 420 ho to HT side ki cable ki rating keya ho gi?

0 Answers  

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Why we does earthing for transformer neutral point

5 Answers   amps, DLF,

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Will a bulb glow if we connect it between the phase and earth instead of earthed neutral?

3 Answers  

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How to calculate the External Resistance required for 60HP slipring motor in case no any data of the Motor is available???

0 Answers  

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WHY WE CAN GENERATE POWER IN 3PHASE MODE ONLY NOT IN 4 OR 5PHASE

18 Answers  

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