Answer / k.prakashchandra

Whenever there is a fault in the system there will be a
momentary dip in voltage as breaker takes some time to clear
the fault.The momentary rise is due to sudden reduction of
load or lightning stroke

Answer / n k singh

It is due to variation in loads. It also occurs due to fault in the network.

Answer / jamsheer

Actually voltage dip is the sudden decrease of rms voltage of transmission line.And voltage swell is the temporary increase in RMS value of AC voltage with the magnitude of the retained voltage between 110% and 180% of the rated voltage.These are mainly due to the fault occurring on any of the power system components.

what is a power factor?

0 Answers   MPWU Kiribati, Thermo,

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if a 3phase 100kva distribution transformer , 400 v,50 hz, 4-wire system is loaded at 160 k.w mostly 1-phase Lighting & Airconditioning split a.c load what will be the net effect on the power system in terms of voltage, powerfactor, current , efficiency of xformer

0 Answers  

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How PSV sizing being done

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do anyone out there know where to find a compleete list on acronyms/abbreviations used in offshore electric engineering. MCB - Micro Circuit Breaker, MCCB-Mouldes Case Circuit Breaker, ELCB-Earth Lekage Circuit Breaker, ELMCB- etc.....

0 Answers   Aibel,

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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 slip when motor stalls is A 1 B 0 C 13.33% D 10.33%

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How turns ratio test is done in three phase transformers?

2 Answers  

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sir please tell 1 ton equal to how many kilo watt?? in some converter software's that is 3.5 kw. is it right?

1 Answers  

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What is harmonics and how the 1st,2nd,3rd etc harmonic levels

2 Answers  

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how to calculate the current carrying capacity of a 25 & 16 kva distribution transformer.

2 Answers  

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How does an induction motor start?

0 Answers   Ericsson,

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define displacement & magnitude ?

0 Answers  

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what are trouble functions of transformer?ex. prv trip,oltc,oti,wti.explain detail.

1 Answers  

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