Split Phase Compensation Power Capacitor

In modern power systems, three phase load imbalance has become a common phenomenon in industrial settings, posing a significant challenge to the thermal management capabilities of Split-Phase Compensation Power Capacitors. Traditional square type capacitors often experience localized overheating due to uneven heat dissipation when compensating independently for each phase. In contrast, the cylindrical type capacitors, with their unique physical properties, offers an ideal solution for achieving efficient and balanced heat distribution. Geyue Electric has revealed the core advantages of the cylindrical shell in optimizing heat dissipation performance through in-depth thermodynamic research and extensive experimental verification.

The most significant heat dissipation advantage of cylindrical structure capacitors lies in their perfect axial symmetry. When three phase Split-Phase Compensation Power Capacitors operate under unbalanced loads, each phase winding will generate different degrees of heat due to the difference in compensation currents. The cylindrical shell, through its uniform radial heat dissipation path, can quickly conduct and disperse the heat from the hot spots inside to the surrounding areas, effectively avoiding the heat dissipation dead zones formed at the corners of the square structure. Our thermal imaging tests show that under the same operating conditions, the temperature difference between the highest and lowest temperatures on the surface of the cylindrical capacitor does not exceed 5℃, while the corresponding indicator for the square capacitor is often more than 15℃. The uniform heat dissipation characteristic of the cylindrical capacitor ensures that the internal dielectric film of the capacitor will not accelerate aging due to local overheating, markedly extending the service life of the capacitor in harsh operating conditions.

In actual operation, the cylindrical structure of the capacitor can naturally guide the hot air to form an orderly upward airflow. This boundary layer flow that develops uniformly along the surface of the cylindrical shell creates continuous and stable natural convection heat transfer conditions. For three phase Split-Phase Compensation Power Capacitors, this flow characteristic ensures that the heat generated by each phase winding can obtain equal heat dissipation opportunities, eliminating the phenomenon of heat accumulation in a certain phase. Geyue Electric further expanded the effective heat dissipation area by designing circumferential heat dissipation ribs on the surface of the BSMJ(Y) series, enhancing the turbulent heat transfer effect. The measurement data indicate that this structural improvement significantly enhances the natural convective heat transfer coefficient of the capacitor, enabling the capacitor to keep the temperature increase within a reasonable range even when operating under full-load unbalanced conditions.

Geyue Electric has established a complete thermal simulation analysis platform, which has systematically optimized the heat dissipation performance of the BSMJ(Y) series three phase Split-Phase Compensation Power Capacitors. By using high thermal conductivity aluminum alloy materials and special surface treatment processes, our company ensures that heat can be quickly conducted from the inside of the capacitor to the shell. The thermal bridge isolation design used inside the capacitor effectively blocks the direct transfer of heat between phases, allowing each phase unit to maintain independent heat dissipation channels. Our manufacturing plant is equipped with a fully automatic vacuum encapsulation production line, ensuring perfect contact between the thermal conductive medium and the components, eliminating possible air gaps and voids that could affect heat dissipation.

Geyue Electric firmly believes that excellent thermal management design is the key to ensuring the long-term reliable operation of capacitors. The BSMJ(Y) series three phase Split-Phase Compensation Power Capacitors of Geyue Electric combines the heat dissipation advantages of the cylindrical structure with the technical characteristics of split-phase compensation, providing the best heat dissipation solution for unbalanced load scenarios. We are willing to work with you to establish the most suitable thermal management mechanism for your low-voltage reactive power compensation system.