Answer Posted / haresh

Because electricity is only passes through the conductors
which are not in touch to coaches of train, electricity
only passes through conductors to the generators, batteries
and all lighting equipments as we use it at our home. So no
feel of electrict shock in an electric train.

write down the formula of cable size in RM if current is 50Amp.

1334

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What is minimum phase system?

1132

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can someone explain that how the speed of the protection system affects the fault level calculation?

2074

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Whether the vacuum contactor requires Short circuit protection?If No,why?

2034

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what is the meaning of osr in transformer.

2132

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How much ph is maintained of water electrolyte which is used in LRS for 1200 kw slipring induction motor ?

1765

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2164

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In siemens PLC, why do we want to move the data ?

2317

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in dc suppy frequency is zero why? if dc frequency is zero how to exist dc transients and ac transients

2115

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What is T’Q and X’Q and X’D ? and what is saturated as well as unsaturated ?

1780

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how can we say that stator magnetic field rotates with synchronous speed?can we derive?

1767

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What is the formulae of Megger value for a A.C.Motor

2878

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Help need in transformer !? Hello Friends The parameters of 2300/230 v 50hz t/f is R1=0.286 ohm R`2=0.319 ohm Rc=240 ohm X1=0.73 ohm X`2=0.73 ohm Xm=49.2 ohm Secondary Load impedance ZL=0.387+J0.29 solve the exact equivalent circuit with normal voltage across primery.. I know every thing but i cant find CURRENT I1=? and I`2=? Please help me give solution or only Formula please please...

3100

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What is the implications when 600 hp motor is started when the unit is running with Transformer of capacity 1500 KVA and DG set of 1000kva

2207

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What are the advantages of speed control using thyristor?

1118

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