which type of capacitor store high amount of energy for long time ? ( polarized or unpolarized )

1 Answers  

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In a company the lines carrying 33KV but the load is below 10000Volts so we know that <11KV we can put 11KV lines but the lines are 33KV,..so how we can step down the voltage to 11KV with out erecting a substation

1 Answers  

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What is the formula to find out the kvar required to improve the powerfactor from .85 to .99 at 1500kw, 415v.

4 Answers   Trident,

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What work have you done on full chip Clock and Power distribution? What process technology and budgets were used?

0 Answers   Divis Laboratories, Intel, Sainor Labs,

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What is the difference b/w Earthing and Grounding?

4 Answers  

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When measuring the Insulation resistance of a motor winding (winding to earth) using a megger meter, Applied voltage(1000V) was automatically reduced to 500V. and the measured insulation resistance values are also very low (in Kohm range) Can anyone give me a reason???

3 Answers  

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Input power is 380 - 450 V but with 45 - 55 Hz frequency - desired output is 415 V and 50hz with 1% variation permissible. CVT / Servo dont stabilize the Frequency - what is best solution??

7 Answers   IOCL,

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what is a relay?

31 Answers  

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A 3PH MOTOR RUNNING IN NORMAL CONDITION AND ITS AMPERE ALSO UNDER ITS FULL LOAD CURRENT,ITS CABLE RATINGS ALSO HIGER THN ITS CAPACITY,BUT ITS CABLE GETTING ABNORMAL HEAT(NOT TOO HOT)WHY ITS GETTING HOT LIK THIS

2 Answers  

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What happens if ac excitation is given to the field of an alternator

3 Answers   Aurobindo,

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what is power ratio between star & delta connection of 3 phase induction motor

1 Answers  

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Can we use all 3 cores of a cable to connect DC motor + ve terminal and similarly one more cable for - ve terminal.

2 Answers  

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