We are ZDDQ, a professional manufacturer of Power Quality Products since 2001. Today, let's talk about the Fixed Reactive Power Compensation.
Reactive power compensation refers to a method of compensating for reactive power in an electrical system using fixed-value reactive power devices. It involves the installation of passive components, such as capacitors or reactors, that provide a predetermined amount of reactive power to the system continuously.
The most commonly used component for fixed reactive power compensation is a capacitor. Capacitors provide reactive power in the form of leading VARs (volt-amperes reactive). When connected in parallel to the system, capacitors act as a reactive power source, counteracting the lagging VARs created by inductive loads. This correction increases the power factor and reduces the reactive power drawn from the system, resulting in improved energy efficiency and reduced losses.
Fixed reactive power compensation generally involves the following steps:
1. Power Factor Analysis: An analysis is conducted to determine the existing power factor and the level of reactive power in the system. This analysis helps in assessing the required amount of reactive power compensation.
2. Capacitor Sizing: Based on the power factor analysis, the appropriate size and quantity of capacitors needed for compensation are determined. Capacitors are selected to provide the required amount of leading reactive power to improve the power factor to the desired level.
3. Installation: Once the capacitors are sized, they are installed in the electrical system at strategic locations, such as distribution substations, near heavy inductive loads, or at the point of common coupling (PCC) of a facility.
4. Switching and Control: Fixed capacitors are connected in parallel to the system and are typically controlled by switching equipment. They can be manually switched on/off or automatically controlled based on pre-set conditions like time, load demand, or power factor.
5. Monitoring: After installation, the power factor and reactive power are monitored to ensure that the desired improvement has been achieved. Regular maintenance and periodic checks are performed to verify the performance of the compensation devices.
The below our small capacitor bank cabinet for fixed compensation to Thailand.
