Industrial and mining enterprises use shunt capacitors mainly for the following reasons:

1. Improving Power Factor: In AC circuits, there is a phase difference between current and voltage. Most electrical equipment in industrial and mining enterprises, such as motors and transformers, are inductive loads. Inductive loads consume reactive power during operation, leading to a decrease in power factor. Shunt capacitors generate reactive power opposite to that consumed by inductive loads, compensating for the required reactive power and reducing the phase difference between current and voltage, thereby improving the power factor.

2. Enhancing Power Quality: Shunt capacitors charge when voltage increases and discharge when voltage decreases, supporting voltage levels, stabilizing voltage fluctuations, and reducing issues like voltage flicker. This helps protect equipment, ensuring normal operation, reducing equipment failures, and minimizing downtime.

3. Reducing Grid Losses: By compensating for reactive power, shunt capacitors can reduce losses in power supply lines and transformers, achieving energy savings and emission reductions. This can lower production costs and increase economic benefits for industrial and mining enterprises.

4. Meeting Power System Requirements: Power authorities often have specific requirements for users' power factor. If the power factor is below the specified value, users may need to pay additional fees or face penalties. Using shunt capacitors can help industrial and mining enterprises meet these requirements.

In summary, the application of shunt capacitors in industrial and mining enterprises can improve the stability and reliability of the power system, reduce energy consumption, and increase economic benefits.

Installation Considerations for Shunt Capacitors:

Pre-installation Inspection: Before installing capacitors, conduct an external inspection to ensure there is no damage, oil leakage, or other issues. Check if the rated voltage, capacity, and other parameters of the capacitor meet the requirements.

Environmental Conditions: Choose a dry, well-ventilated location for capacitor installation, avoiding damp, corrosive, or dusty environments. Ensure the installation site has sufficient space for maintenance and operation.

Electrical Connections: Correctly connect the capacitors according to their polarity, avoiding reverse connections, and ensure that the connections are firm and reliable.

Protection Devices: Set appropriate over-voltage and over-current protection devices based on the rated parameters of the capacitor to protect the capacitor and other equipment.

Installation Distance: Maintain a certain distance between capacitors and other electrical equipment to avoid mutual interference.

Regular Maintenance: Regularly inspect and maintain the capacitors, including cleaning the exterior, checking connections, and measuring capacitance values. If any abnormalities are found, handle them promptly or replace the capacitors as needed.