An electronic (electrical) component that contains two conductors separated by a dielectric
(insulating) compound. Since the conductors are insulated from each-other little-to-no current
can pass between them. A static-electric
field is created when there is a potential difference
) between them.
Note: An inductor uses magnetic fields, while a capacitor uses static electric fields. Both can "store" energy.
Common uses for capacitors:
Power Conditioning -
Power-Factor (PF) Correction
- A capacitor wired in parallel
to an inductive load used to 'correct' or 'compensate' for the inductance
, and reduce impedance
. This makes the end-load more resistive, not reactive. This allows large factories to reduce their power
Starting Squirrel Cage Motors -
These motors use a capacitor hooked up to an alternate 'starting winding' to get them going. The Capacitor causes a phase
-lag in the secondary winding which is at an angle to the primary winding. This causes a rotating magnetic field to get the motor to start spinning. The primary winding is sufficient to keep the rotor turning.
Will continue working on later, feel free to contribute - Dionysus