where we use the SFU & FSU?

0 Answers   L&T,

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What is stub protection is all about?

1 Answers  

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what is the function of compressor?

2 Answers  

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A 400 V, 50 Hz, Δ connected synchronous generator has a field reactance of 0.1 Ω and armature resistance of 0.015 Ω. At full load, the machine supplies 1200 A at 0.8 pf lagging. Under full-load conditions, the friction and windage losses are 40 KW and the core losses are 30 KW. What is the machine’s overall efficiency? Ignore any field circuit losses.

0 Answers   VECL,

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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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what is the speed of current?

29 Answers   Su Kam, TATA,

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The reason why the sending end and receiving end voltage sare almost equal when capacitive load is added.

4 Answers  

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What is Transformer?

23 Answers   HSL,

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Draw the circuit of clapp oscillator?

0 Answers  

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why i can not use thimble on capacitor duty contactor

0 Answers  

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what is the powerfactor

5 Answers   GVK,

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What is metering cubical? What is the use?

2 Answers   HSL,

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