25 hp (20 kW) AC Line Reactor, 3 Phase Output

25 hp output line reactor is used to extend the effective transmission distance of the inverter, 50A. Materials are divided into copper and aluminum, effectively suppress the instantaneous high voltage generated when the IGBT module of the inverter is switched, reduce the noise of the motor.

Line Reactor for VFD Specifications

3-Phase Output Line Reactor Mounting Dimension

25 hp 3-Phase Output Line Reactor Circuit Diagram

 How to solve the screw extraction of ascending flange base of high voltage bushing of line reactor?  

The vibration frequency of body is not in line with that of grading ring. Owing to the damping of transformer oil, grading ring has a low vibration frequency. And owing to single point welding and aluminum sheet welding, it has a poor mechanical strength. The long-term operation, the vibration brought by the inconsistent vibration frequency of earth tag of line reactor (aluminum, welding) and grading ring causes metal fatigue and cracks. Solution: fix ascending flange base and body to reduce free-running vibration.