Answer / pradhyumn

These are the battery chargers are mainly used for charging
the battery bank which is responsible for control supply of
control systems such as breaker closing coil, trip coil,
protection relays etc.
**In float charging battery is charged with the same rate
as it is discharged.It is used when battery rarely gets
discharged.It requires charging the battery at reduced
voltage to avoid the battery from overcharging.

**Boost charging involves a high current for a short period
of time to charge the battery. It is used when battery is
discharged heavily, it enables quick charging of batteries.

In Ferranti effect,Receiving end voltage is greater than sending voltage,why? can anybody tell me the answer

15 Answers   Engineers India Limited,

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what is the HT motor current setting (Motor protection relay)aganist FLA If the capacitor is connected in parallal to the motor to increase the P.F from 0.89 to 0.99. the setting is to be reduced. what is the formula for to calculate the current.(FLA - CALCULATED CURRENT!= )

1 Answers  

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Can anybody just suggest about the scope of Electrical design with ETAP software?Just guide me?

0 Answers  

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why we dont prefer ac voltage controller instead dimmerstat [if both have same rating] for conducting experiments in laboratories?

0 Answers  

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why bucholtz relay placed inclined in transformer?

1 Answers  

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WHAT IS counter flux IN CT?

0 Answers  

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what is the differnce between ac and dc?

5 Answers  

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what is ceiling voltage in an exciter?

1 Answers   KEPCO Energy Service Company,

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what is power frequency withstand and impulse withstand of a circuit breaker?

2 Answers   Power Grid,

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I do wonder why current is present in neutral wire?i check single phase lead current feeding air conditioner...on its phase its current was 10A while same was 10A in neutral...as we know in neutral voltage is zero so if voltage is zero then how current appears on amp meter? my second observation is (just imagination)when I touch phase wire it give me shock but when i touch neutral nothing happens although as above its carrying current(amps) third but with same logic...as in simple Alternate current sine curve there is + and there is negative peak.means every time phase changing so how come every time same phase and same neutral stand (pardon for english mistakes)

1 Answers  

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Why current flows in nutral? As per theory there should be no current in 3 ph explain.

11 Answers   Bhel,

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How many VSC based HVDC are there in India and the world

0 Answers  

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