Answer / shahid

It is a case of short circuit, in short circuit voltage
drops to zero & current becomes infinite, this high current
sences by protective relay and circuit trips.

Answer / abhishek goyal

Its a symmetrical fault when 3phase line are connect each
other at that time its voltage is zero and current go at
infinite level which can be trip by relay. if relay are not
present it will effect the system equipment and load.

in 33KV or 66KV system which connection is aviable on high voltage transformer primary delta or star ?

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how to cal calculate capacitance in DC Circuit

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what is the function of generator exciter

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The speed of a dc motor can be controlled by the variation of 1. armature voltage. 2. field current. 3. armature circuit resistance. 4. angle of brush shift. Which of the statements given above are correct? (a) 1,2 and 3 (b) 2,3 and 4 (c) 1,3 and 4 (d) 1,2 and 4

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How calculate cable size & voltage drop for the following requirement connected load 150 KW distance cable length 1000 M voltage 3 phase 415 v.

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IF TVM OF TRANSFORMER SHOWS POWER FACTOR ON 33 KV SIDE AS 0.97 LAGGING AND ON 132 KV SIDE IS 0.75 LEADING.IS THIS CORRECT.WHERE IS PROBLEM.

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Wat wil happen if Transformer is operated at 100 HZ Frequency?

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Is pure capacitor load and pure inductor load is an linear load? pls justify

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CAN 50Hz transformer work at 60 Hz power supply? if yes how it is possible?

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what is main advantage if motor connected in star or delta?

3 Answers   Essar,

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ro plant grundfos bm30type pump.we start the pump using siemens 3rw 4423-1bc44, 30kw soft starter. bur its failier frequently. so we planed to change the dol starter. sp please tell me any budy its possible or not翿შ†

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what is the difference between real and reactive power? and what is the importance of these

3 Answers  

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