i am using star-delta connections with reverse/forward direction motion of the 75hp induction motor.What should be the ratings of Main,Delta and Star contactors and why?

1 Answers  

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What are the basic components of the feedback control system?

0 Answers  

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Why does increasing the magnetic flux in the main field of a d.c motor cause the armature current to reduce??

0 Answers  

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How To Convert Apparent Into Real Power Without Knowing Reactive Power?

0 Answers  

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What is the basis for selecting Vk/2 or Vk/4 for REF and Differential protection of Transformer and What is the significance of magnetising current

0 Answers   ABB, Jindal,

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How size of Earth Strip is determined for a particular Fault current.

1 Answers  

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1.After synchronising the alternator to the grid,how we r delivering power to the grid?if the i/p increases does the speed hence frequency increases? 2.y the power factor is changing when exitation changes?what is the relation with p.f and flux?

4 Answers   BSNL,

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What is electrical diversity factor in electrical installations?

0 Answers  

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How stabilizer works

1 Answers  

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IN TWO WATTMETER METHOD WE GOT W1,W2,WE KNOW V.HOW TO FIND Q????????????

7 Answers   APTransco,

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how to calculate cable bending angle in a trench?

2 Answers   Eastern Cement,

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what will happen if a 3 phase motor is connected to a single phase circuit and vice versa?

3 Answers  

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