Answer / srinivas

as per standards the max voltage b/w neutral and earth is 3v and its good if it is less than 3 also

Answer / salim mullani

1.5 ohm to 5 ohm

Can u explain : how capacitor act when the supply is given is a.c and d.c. I know that when d.c supply is given then the capacitor charges and becomes open circuited. But please say about when a.c is given. I have seen that when a.c supply is given ,it charges and discharges, But when we plug in capacitor to our daily supply and take it out ,then we join those wires spark will appear,which seems charge is present ,but when a.c is given it should charge and discharge

3 Answers  

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For small size, high frequency coils, the most common core material is- a. )Air b. )Ferrite c.) Powdered ion d.) Steel

0 Answers   Ecil,

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advantage of cu cable over al cable

4 Answers   Havells,

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I have 30 kw motor load & i have selected 10 kvar capacitor bank for power factor improvement.my existing p.f is 0.85 & proposed p.f is 0.99 so ,is it right selection? 2 nd question how to connect c.bank whether in delta or star connection & how to decide it?

1 Answers  

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why core of transformer in square or rectangular why not in circle or ellipse if this what happens

2 Answers  

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In a flange coupling, the flange bolts are designed for

0 Answers   Caterpillar,

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Explain Need of a starter in a dc motor.? Also explain any two starting and speed control method of dc motor?

0 Answers  

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What is the function of neutral CT in transformer? Turn ratio of typical CT for 2MVA transformer ? or relation between full load current of transformer and neutral CT ?

1 Answers   Electrical Inspectorate,

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How can calculate ups battery back up time?

25 Answers   Cisco, Cooper, Pronet, Wipro,

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What will happen if power transformer designed for 50 Hz is connected to 500 Hz of the same voltage , and vice versa ?

1 Answers  

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How the electric train gets the supply of electricity? What is the return path of the current?

8 Answers   Siemens,

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A 11000/415V distribution transformer is fed 415V upon it's LT side,Do I get 11000V upon it's Primary side ?

7 Answers  

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