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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pleasee tell me the risks and hazards of a Cable Jointer job? Thank you.

1 Answers  

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how to generator maintenance (A Check, B check,Etc)

0 Answers   Cummins, HCL,

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3 Answers   Essar, PMT Machines,

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How calculate cable size & voltage drop for the following requirement connected load 150 KW distance cable length 1000 M voltage 3 phase 415 v.

1 Answers  

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how to select the rating of neutral ct with reference to transformer secondary current(in power transformer,stepdown tansformer,for example2000kva,11kv/415volt

2 Answers   ASD Lab,

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1 Answers   ACPL,

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9 Answers  

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We use MCCB not MCB for motor starters because MCCBs has capablity to drawout the motor starting current which is 5-6 times the full load current of motor for 1sec. Then why we use SDF in starter panel means MCC panels. Pls reply if any one knows this answer.

1 Answers  

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