What is the Relation b/w star delta starter , DOL starter and two speed starter. if we want to rotate a 20 kw fan in 2 speeds which type of two speed starter we have 2 use?

1 Answers   ABB,

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Dear sir, my knowledge about cable size determination is limited. Though I read examples I could not calculate the Cable size required for electric driven pump 40 KW, 380 Volt, 50 HZ, 50 meter from transformer and it is three phase star delta starting. Please help as there is no one in my surroundings to help.

0 Answers  

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if there is nutral in phase why we use earthing wire and grounding? even at fault condition the fault current flows to neutral (it is a lower path)

0 Answers  

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How i measured Bus bars weight without wighting ?

3 Answers   Encom,

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is there any difference between protection C.T and measuring C.T?if yes then what is the difference?

4 Answers   BARC, Century Rayon,

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how cables go in and come out for distribution from the feeder pillar box?

0 Answers   CESC,

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In india, according to trade theory above 5 HP motor reqired star delta starter. But we R connect 11 KV motor with 14MW in Direct to line ( With VCB starter combination) Can U Guess, How it is possible ?????

0 Answers   Equate,

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What is the direction of rotation of blades in a table fan and in a ceiling fan ?

11 Answers   Power Grid,

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The neutral&earth voltage is 0v.But we were connected the lighting load at the time ballast was failed.why?

1 Answers  

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What determines the thickness of the lamination or stamping?

0 Answers  

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please send me the previous year's question papers of jindal GET exams

0 Answers   Jindal,

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which type of motor is suitable for water suction pump ?

4 Answers  

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