how to find out basic difference between ELCB,MCB AND RCCB on seeing the materials?

1 Answers   L&T,

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when we connect the capacitor bank in series

2 Answers  

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can we measure +,-.zero sequence current ....? if so how can ???

2 Answers   NLC,

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why we use star connection in HT motor? and delta connection in LT motor

2 Answers   npcc,

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what is star&delta connections?

5 Answers  

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What is the formula that shows relationship between voltage and speed in an induction motor

2 Answers  

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How much sq,mm cable need for 800 amps load

2 Answers  

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What is function of condenser in fan?

3 Answers  

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1.Whats the use of GNAC(Generator Neutral Accessory Compartment) 2. why generator or any other system require Neutral Grounding and not Phase grounding 3. what happens if any one of the phase is grounded. 4. if 15kv is grounded directly what will happen, why it should not be grounded like that 5. use of of NGTR(Neutral Grounding Transformer and Resistor) for grounding is helpfull and how

5 Answers   BEMCO, CSS, Powergear,

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i m in need of current rating chart of heavy duty pvc/xlpe, cu/al cables. can somebody provide me? if yes, plz send me at ashish_patel111@yahoo.com

0 Answers  

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Why different types of connection in transformers are used? (star/star,star/delta,delta/star,delta/delta)Why we are only taking in consideration of star/delta type transformers? if only star/delta is good in practice where doses other type of transformers are used? Note: i want to know place of using different types of transformers other than Star/delta type with brief description.

1 Answers   Electrical Tech,

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I have one ct of ratio 3000-2000/1 Amp its knee point voltage mentioned on name plate is 500-333/30mA-50mA at Vk/2. in secondary box there is three terminal named 1S1, 1S2, 1S3 then on which terminal obtained the knee point voltage ie 1S1-1S2 OR 1S1-1S3 & also specify the knee point voltage for the ratio 3000 from name plate.

0 Answers  

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