Answer / stu b

Connect the supply the wrong way round. IE negative to positive, positive to negative

Dear all, Can anybody tell me that how to choose CT for a specific load? I have a 200kw induction motor, which ratio CT should be installed? Is there a formula or calculation that determines the CT ratio for a load? Regards.

2 Answers  

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What do you mean by screen of power cables?

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advantages of vvvf drives over non vvvf drives for EOT cranes

2 Answers   HEC,

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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.

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what is the function of mccb?

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7 Answers   L&T,

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8 Answers  

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my question is that....few days ago i had installed a three phase motor starter for an electric saw.the motor will run and make the hydraulic pressure which will be goes to pressure cylender by up and down lever.two number of limitswitches are also installed on cylinder for safety of motor.now when the arm of cylinder reaches to the upper or lower limit it will cut the motor's line.and motor will be stop.now wana know that what will i do that motor runs continue after the limitswitch cut it down but it shold not be made any pressure.pls answer me in brief.

3 Answers  

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What is the major difference between cnc and plc. why cant we use plc instead of cnc

5 Answers  

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What the main causes of transient interruptions on Over-Head Distribution Lines?

0 Answers   Orion Laboratories,

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