Answer / arunraj

resistance is the ability of a material to oppose the flow
of electron.
while, capacitance is the ability of the material to store
charge with in it.

Answer / satheesh kumar g

resistance is the property which opposes the flow of electrons and current directly proportional to the applied voltage and inversely proportional to the resistance at a constant temperature.
capacitance is the property to store the charge

what is the difference between Central Battery System and UPS in applications and uses? and why UPS suitable for Computers and central battery for emergency lighting?

0 Answers  

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an off load but energized 11/0.4 KV, 1250 KVA T/F has a power factor of 0.65(capacitive)..!! why is it so, though T/F being an inductive device ??

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what is meant by dielectirc medium? what is the dielectirc value of air and water???

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sir please send me techinical questions for junior engineer posting in bangalore railway i am diploma holder

0 Answers   RRB,

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We have a 12MW power plant & we inject 5-6MW power to Orissa GRID. For this we have a 33KV/11KV switch yard having 12.5MVA power transformer. Some times we draw power during emergency. It is observed that during Export or Import for load less than 500Kw the power factor is decreasing to 0.3 . This is happening only during export or import. During island condition TG power factor OK.Our capacitor bank is provided with our Power plant auxilliary load. Please suggest how I can we improve our power factor during low load (GRID).

3 Answers  

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what is the difference between squirrel cage & slip ring induction motor?

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what is transient voltage?

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What is the difference between MCCB and MCB ?

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What happens if the negative to earth voltage is greater than positive to earth voltage in the battery of substation?

0 Answers  

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how to measure the voltage drop in cables also give formulas to calculate.

3 Answers   Cable Wireless,

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