Answer Posted / sony

when the core of the transformer become saturated the output
voltage will remain the same in the average value even if the input increase another issue .. if the core become saturated
the output voltage will be distortion in shape which lead to harmonics.

Why syn. Generators are used for the production of electricity?

1148

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I have been using an 600VA with 0.6 p.f UPS with my desktop which has 450W power supply unit. Can anyone explain how can this happen . Because the output of the UPS is 360W (600*0.6) (<450W)

2130

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how many synchronous motor are there in any power plant

1993

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How to calculate phase to phase difference ?

2246

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How REF protects transformer alone? explain with diagram.

1536

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In a power conditoining unit (inverter) of a solar plant when we measure the d.c. current fed by different strings of solar plates to inverter, the current in the negative wire is less almost by 1 ampere to the current in its positive wire say current in positive wire 5 A , then current in negative wire of the same string is 4 A. Since the current entering should be equal to current leaving then why the current is noticably less in negative wire.

1602

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how we can do the insulation on secondary of ct explain and so that tan delta will within limit

1924

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Apparent power is expressed as V * I(Conjugate). Why not in V * I ?

3902

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what is the stear deltaprinceple?

1875

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how to meas-our losses for L.T & H.T

2163

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how are reversing the direction of dc motor

1646

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Form S and "c" license application both are same? @ tneb portal

1831

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1. What is the exact formula for one weber? for example,(one ampere = one coulomb electron of electrons crossing a point of conductor at one second. i.e, 1A=1Q/1sec)

1890

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can some one clearly explain why -48 volt DC use in telecom site????

1680

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Explain using drawings what is reverse PID action w.r.t PID controllers.

3436

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