CD-212 is ready for operation with its preset functions immediately after installation without any modifications or adjustments. With smart switching control identifies the power of the connected capacitor stages and connects or disconnects them in an optimized manner as required by the actual mains conditions. This guarantees that optimum power factor correction is achieved with the minimum number of switching operations. Dynamic compensation response time less than20ms work with static contactor provide zero-crossing switching and harmonic protect function Suitable for welding steel rolling machinery cranes oil field pumping units wind power generation piling machines and other varies equipment with large instant impact system. With RS485 communication port can control extra 3 sets CD-212 build Max 48 step control. FEATURES Automatic detect electrical network system status, do not need special configuration Large size TFT LCD display, one screen can show more info than segment LCD screen Various automatic protection functions can make sure capacitor bank long term working With basic electrical parameter measurement and display (I / U / KW / KVAR / KVA / HZ / COS) Provide power quality statu display (Current & Voltage wavefrom and 2-31th Harmonic) Record past 4 days site Power factor trend, display in visualization graph