hi guys,use of capacitor in car stereo amplifier is really helpful..specially when using an amplifier(s) to drive speakers.the purpose of capacitor is to maintain current level for amplifier(s) so it can perform better and give optimum performance to the speakers. Power capacitor uses the current from main battery and stores it in itself. and whenever car is turned off, amplifier uses the stored power from capacitor..
hopefully this answer will be helpful.
The primary reason for a capacitor bank in an electrical substation is for power factor correction. There may also be some secondary purpose for the capacitor bank but the primary reason is power factor correction.
A: Its purpose is to correct the power factor of the line.
improvement of power factor
If you are talking about a capacitor bank used for power-factor improvement, then it is rated in reactive volt amperes (var). Otherwise, it is rated in farads (F).
Capacitors are used to improve an inductive load's power factor towards unity. The power factor before and after adding the capacitor bank depends entirely on the inductive/capacitive values involved.
Use of rvt in capacitor bank
If you are referring to a capacitor bank for the purpose of power-factor improvement, then there's absolutely no point in doing so, as you are charged for the energy you consume, and the power factor of your residence is irrelevant. Your energy meter monitors the supply voltage and the in-phase component of your load current -so it doesn't make any difference whatsoever whether your residence has a 'good' or 'poor' power factor.
To maintain power factor in a capacitor bank diagram, first calculate the desired power factor for the system and determine the reactive power (kVAR) needed to correct it. Next, select capacitors that provide the required reactive power and integrate them into the electrical system, typically in parallel with the load. The capacitor bank should be sized appropriately based on the load's characteristics and the existing power factor. Finally, ensure proper protection and control mechanisms are in place to manage the capacitor bank's operation effectively.
Normal power is the multiplication of current to combination of resistive and reactive or capacitive load. From the vector sum of Apparent power minus real power we can get reactive power(KVAr), which is basically lagging power due to reactive load. This will be the exact rating of capacitor bank. You can find it by cos $ of apparent power.
It's not peculiar. That's a property of capacitors.
Capacitor banks can improve the power factor if the load is leading, which is unusual. Typically in substations capacitor banks are employed to reduce over voltage.
It is calculated by knowing what the reactive power is that has to be countered.See related links below.