Answer / nizam

earthing is mainly used for safety purpose or to ground the leakage current

Answer / suresh

to prevent shock human behings.

A three phase transformer 460v primary 220v secondary (three phase four wire system.) Why did we get 460 volts across the neutral on the secondary side?

3 Answers  

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Reversal of corrent feature in MCCB- What is reversalof current -explain broadly.

1 Answers  

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Which material is used for the core of a transformer and why?

0 Answers  

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Dear sir,how should i set the relay in star delta starter..say ex i am having 4ohp motor,,wht should be the relay setting...?

4 Answers  

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explain remenance . differentiate high remenance type ct & low remenance type ct

0 Answers   Coca Cola,

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A resistance, inductance & capacitance are connected in series between points A & B.The voltage drops across the resistance,inductance&capacitance are found to be 40V,70V&100V respectively. What is the total voltage between between points A&B (Vab)? a)210V b)70V c)50V d)230V

6 Answers  

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How do you select the pickup value of the relay?

0 Answers  

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howmany electrician should maintain for a 1000 kva used plant... in kerala..

0 Answers   Godrej,

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how to select fuse rating for a 3-phase motor ???

0 Answers  

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What happen if field ckt is open when a sailent pole alternator connected to infinite bus

3 Answers   Bhel, Nilkamal,

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what is reactive power?

8 Answers  

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how winding temperature detects in power transformer...?

5 Answers   Roverco,

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