In the case of petrochemical area AC drive & AC motor is used where the speed variation is required. Why they are not Using DC drive & DC motors in such areas?

1 Answers  

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hi all i like to know vat is power plot in control systems also i want to know abt latest trends in electrical & electronics

0 Answers  

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how we select ac fuse rating of an power inverter???

0 Answers   Simco,

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if we convert kw into Ampers,which one formula use by us,pls tell me?

9 Answers   ABB, Essar,

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What's the part of OTCC in transformer?

7 Answers   Bhel, RRB,

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armature is that part in which current is induced since in dc motor we supply current to the conductor so why we call it armature?

0 Answers  

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why we use taping of transformer on HT side?

4 Answers  

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How to measure 20 hp motor resitance

1 Answers  

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what is the formula for computing cable tray size & capacity

0 Answers  

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for hipot test on 33kV busbar, we will test on 70 kV or 56kV, what is the acceptable leackage current?

0 Answers  

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what is d meaning of inrush current of a trafo ? how u can calculate this ?

1 Answers   Jindal,

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In 400KV Switchyard, we have used Circuit Breaker With PIR, what is the significance of PIR & why they'r used?

2 Answers  

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