Grid-off 　wind controller:　

1. When on-grid invertor experiences failure or grid network drops, wind generator will automatically operates brake function;

2. When big wind, contoller will automatically stable PWM voltage, continue to supply power to grid invertor;

3. PWM after 100% uploading, if DC voltage keep higher than requirement, controller will automatically lock wind generator and stop power supply;

4. Wind generator after 12-20 minatus of brake, controller will automatically resume its operation; user also can press brake eliminate button to resume its service;

5. Controller has manual brake service for user to do mandatory brake;

6. Controller has sudden stop service for emergency use. Press sudden stop button, dump all power, wind generator will stop immediately;

7. Comprehensive indication in front penal, including wind source, uploading, stop delay, undervoltage, netpower, and DC output voltage indication

Grid-off 　inverter:　　

1.Be able to work in wind power or wind & solar hybrid system With high efficiency tranformer instead of high frequncy e-circuit design ·

2.Automatic regulate voltage · LCD display operation status · Simplify design by module-functions integrated ·

3.High running stability and reliability · True sine wave form power output · High efficient transformer isolation