How to calculate the value of capacitance of a capacitor used in power factor improvement plant if we know KVAR and voltages?

1 Answers  

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I've descovered that when the earth wire in a domestic electrical installation is not connected back to the board (ground) a voltage of between 9-24v is is found to be present in the earth wire. When connected at the board there is no voltage - is this normal and why does it happen?

3 Answers  

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why 3 phase induction motor only need starter ? why not other motors need starter ?(like synchronous motor,single phase induction motors & their types) ?

3 Answers  

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why the electrical plug point pin(earth) size in max

1 Answers   Autoneum Nittoku, Bajaj,

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what is the acceptable insulation resistance for motor/transformer?

2 Answers   Reliance, Tata Motors,

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What is the difference between relays and contactor construction wise?

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why nutral and earthing wire connect with each other in main panel board.

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E.B sending end to receiving end 33kv ug cable laid 8Km,receiving end to ss1,ss2,ss3,ss4 all are Approx 800 Mtr,can go for 33KV to 430V or 33kv to 11kv in receiving end and 11kv to 430 near ss ,which one is good for technically and economically.

1 Answers   JLL,

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what is ht breaker

8 Answers  

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How Can we calculate current carrieng capacity of Copper Bus-Bars and Alluminium Bus-bar

2 Answers  

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As we use capacitior bank in 3ph ckt for improvement of PF, why not we use capacitor in single phase domestric use, at our house their are many inductive equipments,like fan,mixer,tube choke,air conditioner they also draw PF... by using capacitor can they improve PF. if yes--what are advantage and how to connect a capactor in single ph,and which type of capacitor if no- what are disadvantages.

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We have 250 KW x 2 motors, which are load from 25% to 100% varying load in every minute , so how can we compansate the power factor. pl give your opinions on the above subject.

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