In three phase, phase to phase voltage is 440 Volts, but the three phase motors are designed for 415 Volt, 50 hz, why

1 Answers   Shree Ram, Shriram, Sri Ram,

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Shall we use Dyn1 transformer in place of Dyn11 for motor application as a distribution transformer

1 Answers   NSL Sugars,

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What is the diffrence in between Class PS & Class 5P10 for CTs

7 Answers  

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Why does not AC excitation use in rotor of AC Generator instead of DC excitation?

2 Answers   A2Z Group,

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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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What is true sine wave or pure sine wave inverter?? Is it sine wave or step wave?? If it is step wave, waves with how much step is considered as pure sine wave? Is it possible to produce pure sinewave using power electronics?

0 Answers  

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is it ok to switch lights from a mcb instead of switches

5 Answers  

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If mutual flux is 1.2wb & power factor is 0.8 lag , then what is the Useful flux of a transformer?

0 Answers   Nalco, NTPC,

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what is the transformer efficiency?

5 Answers  

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Difference between control junction box (cjb) and power junction box(pjb)?

0 Answers  

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What is working Priniciple of TVSS ????

1 Answers   Emerson,

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How to take the Vector Group Test in Transformer? What is the purpose of doing Vector Group Test?

2 Answers  

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