what is reactive and active power?why we need power factor correction?
Answer Posted / cracked
reactive power - power drawn from the supply for the
excitation (production of magnetic field) of magnetic
coils/circuits of the machine.
so when using machine with large windings, consumption of
reactive power is more which leads to poor power factor and
hence power factor correction is needed.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
What is meant by Low Resistance Cable and High Resistance Cable.
How does an induction motor start?
why zero sequence impedance measurement is not applicable for single phase GT
why we have to particulary use ACB for below ratings,even available of MCB,MCCB with that range ?
why r we using shell transformer for low voltage
What is the distance between each insulator in 33kv transformer and how can it calculate
what is different between relay and plc?
role of europe union in UK safety legistlation (electrical safety)
What is the rating of a circuit breaker needed for 300 kv load in 33KV supply line of 33/415 transformer ? Whether 800/1200 amp vaccum circuit breaker can perform for a 33 KV line in input in 415 volt in output of the transformer ?
Why do we mostly prefer to generate and distribute electricity in 3 phase and not in 4 phase or 5 phase?
Draw the DOL starter and star delta starter drawing?
how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?
any idea abt REVERSE METERING concept.........?
i karmveer bharti persuing b.tech . plz send me syllabus and name of reference books. for preparation of section eng.
WHAT DO YOU MEAN THE DIFFERENT TYPE OF CURVES OF RELAY LIKE STANDARD INVERSE, VARY INVERSE, NORMAL INVERSE, LONG INVERSE ETC....