Answer / abdurrahim

Heat is the purily resistive load, H=I*I*R*t.

Answer / sandhya

using form factor we can calculate heat load

Answer / jain c

H=I*I*R*t is the amount of heat produced in a conductor
when current is passed. the unit of heat load may be Joule.
I dont know exactly about heat load.

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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2 Answers  

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how to prepare PPM schudule

3 Answers   TATA,

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If the load of transformer is getting more than its rating,,,than how to overcome this problem? Suppose thee rating of transformer is 315kva and the load is going beyond than the rating say around load: 352kva... Than how can we solve this problem without deducting the load.

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11 Answers   GM General Motors,

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please explain how to do 'pole drop test' on generator?

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how to diffrentiate between ac & dc motors from a distance

5 Answers  

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