how can maintaince the acb contactor moveing and fixing kit

0 Answers   Gulf Cement,

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What you have to see in transformer after week, month?

0 Answers  

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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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WE HAVE A PROBLEM THAT THE MAIN DRIVE OF OUR CEMENT MILL HAS AN EARTHING PROBLEM?TWO OF STATOR WINDINGS INSULATION HAS BEEN COLLAPSED DUE TO AGING PROBLEM.THE PHASES HAVE BEEN BYPASSED AND NOW THE LOAD HAS BEEN INCREASED.WE CAN'T REPLACE THE MOTOR.KINDLY HELP ME BY GIVING SUGGESTION THAT HOW TO MAINTAIN THE STARTING TORQUE AND CURRENT FOR HIGH LOADS.

1 Answers   ACC,

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what is meant by directional earth fault and non directional earth fault? describe both.

0 Answers  

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CAn a TJM 10 relay measure over current ?

2 Answers  

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Please give the formula for converting from 1 tr refrigeration to kw.

2 Answers   Bugema University,

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what is STUB protection in tranmission system and switch yard area?

9 Answers   KSEB, Power Grid,

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how to find motor contactor rating and bimetalic relay rating? of 30kw motor which will operate on star-delta starter?

6 Answers   HCC, L&T,

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what is the ideal earth resistance

11 Answers   Amit Enterprises, Enercon,

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the resistance of wire having length X M is R OHEM if i streched the wire to dubble length what will be the resitance

3 Answers  

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What is center gravity load in substation?

0 Answers  

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