DEAR ALL I have motors ( 10 units )each one is 90kw 380V 50 HZ 1000rpm but new local pwer is 220v 60 hz requierd rpm should be 1000 pleas what the beast solution is used frequncy converter or rewinding all motos or chang all motors thanks

6 Answers   GE,

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In Star type and Delta type Motors, If one phase will miss/Break then which phase winding will burn and why?

4 Answers  

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Define active and passive network?

0 Answers  

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There is any especial requirement for motor to drive through with VFD?

0 Answers  

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how can u say about the line by looking at the tower ? {voltage rating of the line}

3 Answers   BARC, London,

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What is the meaning of insulation leavel LI 75 AC 28 About scott transformer spcification

1 Answers  

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Why VCB and SF6 breakers to be used in HT used by cant ACB of higher rating to be used for 11kv and 33kv.

8 Answers   TCS,

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How to calculate the motor winding resistance ?

21 Answers   Forbis, L&T, OEGI, VTI,

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in transformer input is d.c signal which type of emf is induced

1 Answers  

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the 230 value of voltage which is use in our home . is that value is rms, aerage or peack value of voltage?

5 Answers   L&T,

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why and how fault current flows through ground?

1 Answers  

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Why electricity is generated and transmitted at the values of multiples of 11?

3 Answers  

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