What is Grounding? any difference b\w earthing? if yes plz explan??

3 Answers   ABB,

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WHAT IS THE THUMBRULE FOR FINDING OUT THE CURRENT CAPICITY OF A COPPER WIRE?? 2.5, 4, 6MM SQUARE ETC...

5 Answers  

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Why electricity is generated and transmitted at the values of multiples of 11?

3 Answers  

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How can transformer winding insulation be measured (Delta & Star Connections)?

3 Answers  

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Why are use 22 kv 3ph supply ?

1 Answers   IOCL,

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what's the difference between ATS and AMF...??pls answer me in detail with its working principle and construction also..

3 Answers  

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what are the specifications for Dc cables of higher rating

1 Answers   Reliance,

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In a star-star connected h.t transformer why we use NGR on the secondary (l.t)side.

3 Answers   Star, TATA,

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what is used root two in single phase line?

1 Answers   DVC,

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why grid failure happens?

1 Answers  

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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?

0 Answers  

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Why computer humming sound occurred in ht transmission line?

0 Answers  

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