High Voltage Capacitor Power Supply with 220VAC±10% Output Voltage IP67 Waterproof Level and Insulating Resin Potting for Smart Grid Voltage Divider

The power supply is a power supply device that directly connects the high voltage end to the device and obtains electrical energy from the output end. It is mainly composed of a capacitor unit and an electromagnetic unit, wherein the electromagnetic unit includes an intermediate transformer and a harmonic elimination circuit.

The circuit block diagram is shown in the figure below. In the figure, the capacitor C is the high-voltage power-taking capacitor, and T is the power-taking transformer. These two components constitute the C-L power-taking mode. The advantage of this method is that the power is large and the overall volume is small.

The high-voltage powering device produced by our company has the merits of large power taking, flexible combination and wide power and voltage coverage. It can satisfied with working power supply of all models of primary and secondary fusion intelligent switch and controller, and can solve the fatal damage caused by ferromagnetic resonance of traditional PT. It is an ideal replacement product to replace traditional PT.

Application Benefit Evaluation

Actual Application Scenarios and Promotion

· Core Application in Power System:Has been applied in more than 20 units including XJ Group and Pinggao Group, providing power for online monitoring devices (such as conductor temperature sensors and insulator leakage current monitoring devices) of 110kV and above transmission lines. The failure rate of equipment in operation is <0.3%, which is significantly lower than the traditional CT energy-harvesting scheme (failure rate 5-8%).

· Cross-Field Expansion Effect:Applied in scenarios such as railways and oil field pipeline cathodic protection power supplies, ensuring that the device's anti-electromagnetic interference performance in railway scenarios passes the "GB/T 17626.5-2019" Level 4 certification, ensuring that the train control system is not interfered.