Answer Posted / veldhaya

electric field is linked with magnetic field due to faraday's law of Electromagnetic induction

what is feeder bay?

1528

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working function importance of mdc meter

2112

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what are the applications of transistors with low dc gain, high dc gain and medium dc gain( beta)?

1708

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what is the min and max ohmic resistance for the earthing rod installed for lighting poles for street light network

3685

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What is meant by sag?

1096

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Which material is used for the core of a transformer and why?

1041

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What is the typical enclosure type used for Indoor switchgear / Outdoor switchgear Units? - In Onshore / offshore Units?

942

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how dia of wire and angles are calculated for overhead shielding wire to protect substation equipment from lightening strokes???

1981

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The loads are connected with phase and ground then why current flow as the loads ?

1909

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how is the cable tray designed & how its total length is calculated for an Industrial plant Say for Ex. (500KW Motor Load)

1857

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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?

1686

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Explain Energy and Power signals?

1704

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What is an alternator impedance value?

2804

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Can you tell me more about pu systems (per unit systems )calculation in large power systems? how to get the base for voltage and power in generator, transformator and transmission lines?

2232

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How to know vacuum in vacuum cylinder of breaker in working condition

1892

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