Answer Posted / gopal

A motor designed for line frequencies doesn't have the
inductance to limit current at 25 Hz. And the coupling to
the rotor is inefficient. Driven to provide reasonable
torque it will heat badly.

what is the voltage rating of chiller unit sensors

2764

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plz explain the auot-reclosing circuit in electrical engineeing

2457

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I just purchased a 4 position cam switch to be used to operate a 3-speed blower motor. The motor is a 10 amp motor and has 3 wires that are used to control speed. The cam switch was rated at 660V 20 amps but when I received it, I noticed that it has AC-15 operational current rating (Ie) of 4/5 amps. If I am reading the label correctly. the 4/5 amps is related to 440v/220V (Ue). Other ratings are AC-3: 5.5A, AC2: 7.5A and AC-4: 1.5A. My questions are 1) Is it safe to use this switch with the motor I have 2) what is the difference between the 20 amp Ith ratting and the Ie operational ratings?

1729

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Why water bubbles when D.C. Current is passed through it? Why not when A.C. Current is passed?

2129

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What is the control action?

1122

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HOW can i REuse the fused MLL LAMPS & GLS LAMPS at our factory

1878

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why there using acb enclosure in big buildings

2083

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how we findout a ignater is faulty or not?

2088

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HOW TO SET THE EARTH FAULT SETTINGS IN ACB????????????

2149

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3phase motor can be used as a Prime mover for alternator.

1582

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How to know th details about an electrical Drawing ? Please mention the easy method.

2429

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What are the different sign conventions used in electric circuits?

1153

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a 230v transformer with step down ratio 19:1.it has 2000turns on primary and rated 25va calculate max primary current no of secondary turns volts/turn

1534

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What is power factor why we should maintain the power factor unless what will happen

1896

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What are the reasons for the parallel operation of transformers?

1113

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