Year1
- 电压：
- 380V
- 频率：
- 50HZ
- 功耗：
- 5W
The device is mainly used for compensation of AC welding machine loads. The welding machine loads have rapid or extremely fast reactive power changes, large and unstable reactive power loss changes, and the three-phase load is unbalanced, including Harmonics and other characteristics. The load of the welding machines in machinery manufacturing plants and steel mesh plants changes extremely quickly, causing a large amount of reactive power. The reduction in the total voltage value will lead to poor welding quality and affect the welding production efficiency. Working principle and device characteristics
This device automatically collects and judges system changes by a microcomputer, uses reactive power and power factor as criteria, automatically switches reasonably, reduces the number of switching times, and avoids switching oscillations and reactive power backflow. To solve the problem, the power factor of the system can be maintained at the best state. The switching mechanism adopts thyristor switching to meet the requirements of rapid load changes on the switching mechanism. The power saving effect is obvious, the power factor can be increased to above, the welding quality is improved with stable current, flicker is eliminated, and existing equipment can be fully used to reduce basic expenses. There are three forms of compensation: three-phase total compensation, three-phase partial compensation, and total compensation plus partial compensation. According to the actual situation, taking into account the compensation effect and cost, rationally select the compensation form to fully solve the contradiction between compensation for reactive power and three-phase unbalance, as well as three-phase compensation and cost. Main technical performance
Rated voltage and other rated power capacitor switching method thyristor switching harmonic function effectively suppresses high-order harmonics protection function overvoltage and overcurrent short-circuit measurement circuit three-phase voltage and current power factor maximum allowed overvoltage rated voltage maximum Allowable overcurrent rated current
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