Model Number: ZKJ-GT20KW Brand Name: ZONHAN Key Specifications/Special Features: ZKJ-GT (Grid-tie) model product characteristics:◆Product is manufactured according the JB/T6939.1-2004 industrial standard and GB/T 19115.1-2003 national standard also with users’ technical requirements◆Two sets of control systems: PWM constant voltage system and three-phase dump load system◆PWM constant voltage control is 120% of the rated power of the wind turbine. In case exceeding of PWM’s capacity, the three-phase dump load will automatically start immediately. After 10-20 minutes, the three-phase dump load will stop and the wind turbine will re-start to resume power supply to ensure the safe running of the overall wind turbine generation system◆Under the strong or super-strong wind conditions, the controller can conduct constant voltage output to ensure the inverter safety running◆Under the condition of disconnected grid-connected inverter, the controller can conduct constant voltage output and wait for inverter resumption◆Three-phase dump load of the controller will automatically start and the inverter will stop grid output when the power grid is offAs soon as the grid power resuming, the controller stops three-phase dump load and the inverter will resume power supply◆For the different wind turbine generator type, the controller can be equipped with mechanical yawing, furled empennage, mechanical or hydraulic, pneumatic, electric magnetic and other brake functions Type 20kW 30kW Wind turbine rated power 20kW 30kW Wind turbine Max power 40kW 60kW Solar panel power 6kW 10kW Function rectifier, control Display mode LCD Display content wind turbine voltage, wind turbine current,
wind turbine power, solar panel voltage,
Solar panel current, solar panel power,
DC output voltage, DC output current,
DC output power PWM constant voltage ≥600dc ≥600dc wind turbine 3-phase dump load voltage1 640±5Vdc 640±5Vdc wind turbine 3-phase dump load voltage2 650±5Vdc 650±5Vdc Time-lapse of the wind turbine 3-phase dump load2 12-20 min 3 min wind turbine 3-phase dump load voltage3 ------------ 630 ±5V DC Time-lapse of the wind turbine 3-phase dump load3 ------------ 12-20 min Low-voltage ≤200Vdc ≤200V DC Solar panel fuse 25A 25A PWM dump load fuse 63A 63A Fuse of DC output 80A 80A Work environment temperature -30 to 60°C Relative humidity ＜90% no condensation Noise(1m) ＜40dB Degree of protection IP20（Indoor） Cooling method Forced air cooling *Communication interface (optional) RS485/USB/GPRS/Ethernet *Temperature compensation (optional) -4mv/°C/2V,-35°C to 80°C,
Accuracy: ±1°C Size of the controller (mm) 760*600*335 760*600*335 Weight of the controller 42kg 42kg Size of the dump load (mm) 760*520*1200 760*520*1200 Weight of the dump load 110kg 140kg