Answer Posted / aditya shirbavikar

Free wheeling diode (Fwd) is used in a d.c circuit, generally in a.c drives in which two stages are used to convert FFFV to VVVF. first rectification and then inversion. so, free wheeling diose is placed between rectifier bridge and invertor bridge so to prevent the reverse a.c pulses from blowing up the rectifier bridge circuit.

Is single load(eg: three phase motor) having all the components like positive,negative,zero sequence components during fault condition?

1882

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Two bulbs of 100w and 40w respectively connected in series across a 230v supply which bulb will glow bright and why?

1113

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Hi Everyone ! My Name is Hakim ullah khan please i need formula of Cable Rating because i want to calculate by self without check any Table Chart... Thank you.....

1776

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Give details on how you intend to handle a challenging position you are posted to manage unexpectedly as a company staff?

3361

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Is potential difference materials property ..? if yes tnen how.. explain brifly.

2117

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ELECTRICAL DRIVES: can a motor load system with passive load torque can have equilibrium speed in second quadrant

6390

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Draw the wave shape of armature current in a generator subjected to a sudden three phase short- circuit at its terminals. Define various reactance of generator from this wave shape.

2311

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how we control automatic generator i'e with to supply (main supply and local generator) when the main supply was break to supply the local supply automatically to begin supplying power.I now this control circuit is the combination of contactor time delay contactor switch and overload relay .but my question is how we combine those component thank you

2039

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In case of generator when we consume more power produces by it why load on generator increase and starts sound more. and how it is adjusted..

1991

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we have 2.2kw,Y,3000rpm motor but 6leads found in TB what happen if we connect in delta?

1979

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Define what is power quality meter ?

1336

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is it possible to have dc motors on single chip

1883

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List out the the types of Mounting Light fixture?

1652

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when the time of backcharging the transformer three phases only enough or three phase with neutral is must.from these which one is the best one.

2092

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1600kva capacity Transformers how the bucholz relay,Oil temperature,winding,surge relay relays setting are to be done

1953

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