Answer Posted / samir

In electrical engineering power is represented as Apperent
power VA,Reactive power VAR and True power KW,and all the
three are represented as a vector because all have value
with derection,trivector meter records all the three power
so it is known as trivector meter.and VA,VAR and KW
represented in vector form so they are three different
vectors.

An 8 pole, 50 Hz, 3-phase IM is loaded to a poing where pull out torque will occur. The rotor resistance per phase is 0.3 ohm and motor stalls at 650 rpm. The rotor reactance at stand still is A 2 ohm B 1.25 ohm C 3.15 ohm D 2.25 ohm

2285

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is that a problem if i connect a single phase load to a secondry delta connected transformer but i get a neutral from other transformer i the system?

1860

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how to calculate earth fault relay current and CBCT ratio

8345

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If we have use two power cable for incomer, that time how many use cbct for earth leakage protection? 1 or 2 if 1 way? If 2 way?

2103

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Define relative stability.

1066

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What are reasond for high wattage in single phase induction motors

1891

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i have flexible wire. size of conductors is 0.190 mm & no.of conductors are 48. then size of wire comes 1.37 sqmm instead of 1.5 sqmm . the what is tolerance for this size.

1795

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how does directional relay work incase of ac ?

1515

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how oltc works in rectiformers of higher rating (27 mva,200v dc,120kamps) please provide me full information with diaggram.

2144

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What are the two segments of nyquist contour.

1109

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How each of the following losses occur in d.c machines (i) copper (2)core (3) windage (4)friction please help me

2036

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Define closed loop control system.

1086

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If the line voltage is reduced to 75% of its rated value then by what percentage current will reduce ?? 75% 25% 50% no change and why ?

2196

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Explain the method to keep noises low in a control system?

1142

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how to apply b license to c license in tneb

1821

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