Answer / santhosh s

Assistant Engineer- safety

losses in transmission lines ?

0 Answers  

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what happens if we connect two parallel ideal voltage sources across resistor?what is current flowing through resistor?

2 Answers  

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A 6.6 KV/ 440V Xformer. what are the imporatant parts & equipment required for it's protection panel.

0 Answers   APTransco,

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wich timer i have prefred for pusher operation fwd & back?

2 Answers   AluChem,

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how much amp MCB is required for 1/2 kva power back up?

2 Answers   Havells,

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why we step down the voltage from 440 to 220 in machines

4 Answers  

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In MEP Services what are parts of STP and what are there function?

0 Answers   Tenon,

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How a Universal motor works in Both A.C and D.C? What is the constructional difference with other single phase motors?

1 Answers  

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What are the parameters of water ( Water quality )to be monitored in Centralised HVAC ( water cooler chillers )

0 Answers   Ambuja,

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What is Avg. Power Consumption of 2 TR Split A/C???How v can calc. this???

1 Answers   Emerson,

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What is the basic difference between directional and non directional over current protection?

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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