WHY MOSTLY Rph IS USED FOR CONTROL CIRCUITS AUX. SUPPLY ?

0 Answers   UltraTech,

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what is settable hystersis protection? If any body knows plz kindly post the answer..

0 Answers  

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what is the differnce between high impedance relay and low impedance relay

4 Answers   Areva,

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HOW TO CALCULATE BATTERY BACKUP TIME & AH CAPACITY AGAINST UPS KVA RATING?

2 Answers  

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what is open star connection or open delta.

1 Answers   ACC, Jindal,

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why in large rating C.T.s equipotential wires are used?

2 Answers   Essar,

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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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Difference Between Differential Relay and Restricted Earth Fault Relay of Power Transformers

1 Answers   KSEB,

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How one can check the charger of the mobile phone or any other charger .......... that is it working ? if , working is it delivering the required supply which is needed by the battery to charge properly ?

4 Answers  

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IN 500 KVA TRANSFORMER 11KV/415 VOLTS HOW TO CALCULATE THE HT CABLE SIZE AND LT CABLE SIZE FROM TRANSFORMER TO LT PANNEL. AND HOW MANY MAINSWITCHES OR MCBS WITH RATING ARE TO BE PROVIDED

2 Answers   BSF,

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I have 480V Single phase and I am trying to figure how big of a transformer (KVA's) and Primary breaker size I need to provide 200 Amps at 240V for a building.

1 Answers   Wipro,

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which motor is used in watch..??????

3 Answers   Bhushan ITI,

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