Answer / niloy ghosh

Because supply voltage is 110V DC which is supplied from locomotive main power supply.

what is the difference between single phase, 2 phase, and 3 phase in electric meter?

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What does a permanent magnet generator do?

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A synchronous motor is operating at a leading power factor .if the applied voltage is decreases ,(the excitation remains constant ) ,the motor current a)increases b) decreases c)remains same d) none of these

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It is observed that AVR of an Alternator is more likely to fail if the Generator and Mains Neutral are directly connected to each other. Why should this be so?

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6. A DC AMMETER HAS R=0.1 OHM & CURRENT RANGE IS 0-100 A IF THE RANGE IS TO BE EXTENDED TO 0-500 A THEN METER REQUIRES SHUNT RESISTANCE OF ..........

2 Answers   SSC,

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how can we measure 220kv or more than these voltages ...?and also how can we conform whether we r getting 220kv from generating stations throuth the h v transmission lines?

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Wtat is mean by GHOAST VOLTAGE?

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If ac 230volts inputsupply to full wave rectifire what is D C output voltage.

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what is meant by neutral Ct of a transformer and how it connected in transformer

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As we know multiplicity factor derivation equation is as below MF = main c t ratio / main p t ratio * meter c t ratio / meter p t ratio * meter dial constant Where in digital meters for HT kwh import export now a days meter constant are calibrated already which is 1 So my question is For HT 11kv 110 v line values are as below Main c t and p t ratio are 11000 v and 110 v and 20/5 means 20 amp and 5 amp Now meter values are 11000/√3/110√3 and primary and secondary amp are displayed as -/5 amp on kwh meter so what will be the MF for this meter ?

1 Answers   NEPC,

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hi frnds...pls send me aptransco previous papers .....pls..pls,,,(madhar.rocking@gmail.com)and suggest me some websites

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How to confirm the Phase shifting Transformer VECTOR GROUP relation , as below ZNy11.45d10.45-ZNYy0.15d11.15

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