how and why are capacitors are used to improve powerfactor?
Answer Posted / d.ramesh clsses
follow the answer#1 and you know, in capacitor the current has 90 degrees triangle forward than voltage and in inductors' current is 90 degrees backward than voltage, so because all motors are likes inductors because of theirs winding so capacitance reduces the angle between current and voltage and cause higher power factor and less energy consuming and high efficiency.
by D.RAMESH CLASSES
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
use of choke in APFC panels
I just purchased a 4 position cam switch to be used to operate a 3-speed blower motor. The motor is a 10 amp motor and has 3 wires that are used to control speed. The cam switch was rated at 660V 20 amps but when I received it, I noticed that it has AC-15 operational current rating (Ie) of 4/5 amps. If I am reading the label correctly. the 4/5 amps is related to 440v/220V (Ue). Other ratings are AC-3: 5.5A, AC2: 7.5A and AC-4: 1.5A. My questions are 1) Is it safe to use this switch with the motor I have 2) what is the difference between the 20 amp Ith ratting and the Ie operational ratings?
What are the properties of a resistor?
How to calculate fault level of 11 KV system
what is earth pit , how we can measured it, what earth rods reference
why we r not earthed Control cable of C.T. terminals
What is core CT & it's function?
Hi everyone. Some Generators uses 3-Pole breakers with extra contactors for Neutral. Some uses 4-Pole. Why so? What is the idea behind this? Thanks in advance for the solution. Kr.
what is the easiest method of short circuit current calculation ? pls. derive with a mathematical example in real life application.
what do you mean by class PS CT and what are technical details needed for calculating it?
give single line diagram of D.G distribution form alternator to main L.T panel?
I use 20 nos led tube 4feet, in pathway 100mtr approximate, so what size cable i use for lighting
What is the numerical quantity of sqcm?
what are all types of cross section in AC cables?
we have two generators different capacity on 15 MW and other 6MW at 11 KV , 15 MW gen. bus short level current 40KA,and 6MW short level current 25KA,, length of cable 100MTR between 6 MW from 15MW gen. for bus coupling . kindly tell any one can we use both NGR OR one NGR from any GEN. BOTH NGR has diff. rating. Tariq pakistan