Answer Posted / guest

25kv AC line normally used, current collector pentograph is
used to collect current then this power transform to a lower
level(voltage) by transformer. now this power is converted to
DC and used to drive DC motors. these DC Motors drive the
train.
25 KV AC supply collected from the Grid and transmitted in the
railway grid along the tracks boosters are arranged at
different section to maintain voltage level.

we are having 110 Kv,250mA Electrostatic precipitators for coal fired boilers. what will be static voltage and current after discharge and what time it will remain before earthing?

1885

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in a simple IDMT relay we use neutral point of ct for earth fault then what is the requirement of neutral ct and cbct?

2163

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can u give me a brief idea about power line carrier communication ??

1837

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Explain the operation of grid connected central solar inverter ?

1530

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What is the function of a neutral reactor.

1862

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DG Earth Value?

2296

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Tell me all plants load factors i.e which plant operating on which load?

2088

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how to set relay setting? and example calculation...

2031

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how much winding resistance of 0.75kw to 12.5kw 3ph sqwiralcage induction motor?

2989

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Whata are the types of Cables?

2141

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XYZ

2133

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In a single how much maximum current and watts using

2154

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During Starter Panel Com missing I Found The Main Incomer 40Amp MCB 10KA Trip When Motor Change Star To Delta Motor Rating 20HP BUT When We Use Same MCB To Other Motor It Does Not trip Or What Is Necessaries for Star Delta Starter MCB SFU MPCB OR MCCB And What are The Breaking Capacity of MCCB in the Motor above 15HP

1866

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Why LED light has advantage of rapid reflection ,although other lights alse reflect.? and this light is considered to be best for transmission usage in case of Free optics

2039

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What is inrush current?

1164

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