Kondensaattoriyksiköissä

Kondensaattoriyksiköissä, known in English as capacitor banks, are electrical devices composed of multiple capacitors connected together. These banks are primarily used to increase the total capacitance of a circuit. By connecting capacitors in parallel, the overall capacitance increases, allowing the bank to store more electrical charge. In series connections, the voltage rating of the bank increases, while the total capacitance decreases.

Capacitor banks serve several crucial functions in electrical systems. They are commonly employed for power factor correction in industrial and commercial facilities. By compensating for inductive loads, they reduce reactive power consumption, leading to improved energy efficiency and lower electricity bills. They also help to stabilize voltage levels by smoothing out fluctuations and providing a source of reactive power when needed.

Another significant application of capacitor banks is in filtering and smoothing out rectified DC voltage in power supplies. The stored charge in the capacitors helps to reduce ripple, providing a more stable DC output. In electric motor starting circuits, capacitor banks can provide the necessary surge of current to get the motor running.

The design and construction of capacitor banks vary depending on their intended application and the voltage and current requirements of the system. They are often housed in robust enclosures to protect the individual capacitor units and to facilitate safe installation and maintenance. Safety features, such as discharge resistors, are typically incorporated to safely dissipate stored energy when the bank is de-energized.