What will happened. if we feed 3phase supplay to the stater with out insert the rotor. How much current will flow through the stater winnding?

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how you connect the induction motor first in star and then delta in star-delta starter

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If single phase supply is 220v. then why three phase supply is 660?

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why can not run two different phase circuit in to the same conduite

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How does a transformer contribute towards the widespread popularity of ac system over dc?

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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?

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What is Creepage distance?

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What is the effect of earth capacitance

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What is the tension required for the 25000 CFM AHU belt

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What do you mean by cold shinkable cable joint.How it is done.

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The Frequency is measured by _________ bridge ?

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How neutral voltage for transformer decided? eg 33kv neutral voltage for 200MVA transformer?

1 Answers   MEIL,

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