How to calulate Locked rotor amper(LRA) for compressor type motors?

0 Answers   MAF Dalkia,

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why a single phase motor of same rating takes more amps than the three phase motor? as single phase motor at 230v takes 5amp per HP while 3 p motor takes 2.5amp per hp at 230v.

1 Answers  

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What happens if ac excitation is given to the field of an alternator

3 Answers   Aurobindo,

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1. What are the tests to be carried out for CBCT? 2. can measure the secondary resistances? 3. with respect to secondary maximum how much voltage can be applied for IR test.

0 Answers  

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what is the significance of per unit impedance ?

7 Answers   HP,

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How supply comes to your home?

3 Answers  

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which type of winding is used for high voltage & low current?

1 Answers   GEB,

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there are a transformer and a motor. both are connected to 3phase, 415 Volt, 50Hz power supply. Both are working with induction principles. Then, why, motor is rotating and transformer is not rotating.

8 Answers  

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For Eg a 30 kw motor at full load how much kw it takes And at no load how much KW it will take?

1 Answers   GEPL,

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what is the working principle of tube light?

2 Answers  

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What are safety seals?

1 Answers   HSL,

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When both contractor star & delta is hold in star delta motor ?? So what happen in this case ??

1 Answers  

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