Model Number: ZKJ-GT50KW Brand Name: ZONHAN Key Specifications/Special Features: ZKJ-GT (Grid-tie) model product characteristics:◆The 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.◆The three-phase dump load of the controller will automatically start and the inverter will stop grid output when the power grid is off. As 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 50klW 100kW Wind turbine rated power 50kW 100kW Wind turbine Max. power 100kW 200kW Function Rectifier, control Display mode LCD Display content Wind turbine voltage, wind turbine current, wind turbine power, DC output voltage,
DC output current, DC output power PWM constant voltage ≥650dc ≥650dc Wind turbine 3-phase dump load voltage1 670±5Vdc 670±5Vdc Three-phase dump load 1 delay time 12-20 min 12-20 min Wind turbine 3-phase dump load voltage2 680±5Vdc 680±5Vdc Three-phase dump load 2 delay time 12-20 min 12-20 min Wind turbine 3-phase dump load voltage3 700±5Vdc 700±5Vdc Three-phase dump load 3 delay time 12-20 min 12-20 min Low-voltage ≤200Vdc ≤200Vdc PWM dump load fuse 63A 100A Fuse of DC output 100A 200A Self-provided connecting wire of the PWM dump load (mm) >10mm >20mm Self-provided connecting wire of the dump load 1(mm) >10mm >16mm Self-provided connecting wire of the dump load 2(mm) >10mm >16mm Self-provided connecting wire of the dump load 3(mm) >10mm >16mm Work environment temperature -30-60°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~+80°C,
Accuracy:±1°C Size of the controller (mm) 690*590*1300 mm 690*590*1300 mm Weight of the controller 120Kg 120Kg Size of the dump load (mm) 760*520*1200(3pcs) 760*520*1200(4pcs) Weight of the dump load 330Kg 440Kg