why the current leads voltage in the case of a capasitor
Answer Posted / kumar.shyam1
capacitor it stores the energy in the form of static field
and when no magnetic field no change of flux
so inductive part when it is a pure capacitor
from this we can say current is dominating
y it generates static field because of dielectric medium
| Is This Answer Correct ? | 3 Yes | 6 No |
Post New Answer View All Answers
i am an maintenance engineer. one distribution board have 5 feeder. recently its ELR trips frequently, but it take some times after trip( 10min,20min..)but 3 feeder no load. two feeder only loaded. i checked one feeder IR value all values are above 50Mohm.but B phase to Earth is only 9Mohm.any problem about low value
Type of motor stater detail and working detail
Is it required to use Automatic transfer Switch in L&T panel board if we use AMF panel with DG set? How the single line diagram will be? Please forward the material to sreenu_207@yahoo.co.in
PIU how does work?
why to use freewheeling diode ( diode in revers bias mode) across dc coil
what are the condition that makes hooter blow?
What do you mean by reach and reach the point of the relay?
I have a small system with two motors that are running on 380 vac, 60 hz. These motors are expensive and I usally get them from Brazil. I am adding another motor to the system, but I want to purchase a 480 vac, 60 hz motor to use. It will be on a VFD that is rated fro 380 thru 480. Is this posible and will I have to use a larger motor and derate it?
what are the different kind of cables used for transmissions?
1)what is the function of a frequency inverter? 2)If a few frequency inverter are connected onto a device network,what are the two setting that will ensure the frequency inverter work properly on the network. 3)whats is the name of the input sensor for weigher? 4)How to confirm that the load cellis faulty? 5)Describe briefly the steps to validate that the weigher is working properly? 6)Describe the procedure to validate the flowmeter accuracy? 7)Describe briefly the steps to validate that the tempreture sensor/transformer is working properly. 8)what is the adjustment that need to be done when you are calibrating the temperature transmitter ? 9)what are the safety measures to be taken before disconnecting motor for rewinding. 10)whats is the synchronous speed in rpm of typical 4pole 50hz motor? 11)whats is the formula for kw, ohm's law 12)if a 3phase motor is rated 3kw,415vac,what is it's rated ampere?
IN induction motor pf is increased using capacitors.what will be the effect on motor and system when very large capacitor is accidently installed and pf goes leading.
how to Select its CORE in electrical cables based on its applications? or Application of various types of electrical cable based on it CORE?
How we can come to know the substation range,without go through any name plate ?
internally connection of photvoltic module
how to calculate compresor capacity?