Answer / 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.

Answer / rameez

Tri-vector meter is used to measure kVAR, kVA and kVARh...and tri vector is the vector representation of of the 3 quantities....

I have carried out wiring for lighting in a shed in Industrial area which contains Metal halide lamps & have balanced in 3ph.Now when we put all the lines on in the daytime the current taken at 3phases at MCB comes to be equal i.e.28,29,28Amps respectively but in the night time i.e between 7p.m.to 11p.m. at the same MCb the current is 52,59,62Amp, though I have fit 63A MCB it is tripping in the above period.What may be the reason.? Note: This industry is located in industrial area where majority of steel ingot manufacturing plants are there. Whether this may be due to harmonic? what should I do to overcome above problem.pl suggest urgently.

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hi, i finished b.tech eee in 2008, im worked in dg sets mfg company , now i left job in 6months back, now again i want get job core side, how can i get? is there any couses we have learn to get better oppurtunity? /

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