Answer / mostafaghodrat

Means of protection from overcurrents
setting current & setting time
idmt
Means of protection from phase-to-ground connection
setting current
&
And in the least possible time trip

Can any body tell me about Hi-pot test, and why it is necessary and its procedure of testing

6 Answers  

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how to reduce the power consumption in office ?

6 Answers  

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how one can know the charging time, discharging time of a 12 VDC battery ? If i have a battery of 12 VDC , 4.0 AH , how long will it take to charge from a charger (power supply) of input 220 V , Output 15 V and output current of 3000 mA and how long will it take to discharge whether using or not ? How much backup will it give ?

1 Answers   ONGC,

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what is resver in electrical enginnering with answer

0 Answers  

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CALCULATE THE TOTAL VOLTAGE DROP AND SELECT THE CABLE SIZE IN MM-SQARE FOR A PANEL-262KW AT 110 METER FROM THE SOURCE SUPPLY , SUPPLY VOLTAGE 240/415

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why secondary of c.t. will kept open ?

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What is neutral earth voltage of transformer and what should be the value

3 Answers  

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State thevenintheorem?

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we know the value of the power factor is 0.8, we know the power factor is not depends upon the load ,then why we cant design the power factor in transformer ?

1 Answers  

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explain maximum demand factor

1 Answers   Sterling,

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what is the role of frequency in electrical system

2 Answers   Hindalco,

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if the rotor of induction motor is purely inductive then what is the electromagnatic torque.........

1 Answers  

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