VESTAS CT257  RCC PROCESSOR
ROTOR CURRENT CONTROLLER
ITEM 90826, 95375, 883514

Vestas CT257 control unit is used on the following turbines

1. V39 600KW, VMP3500
2. V42 600KW, VMP3500
3. V44 600KW, VMP3500
4. V63 1500KW, VMP3500
5. V66 1650/300KW, VMP3500

Portable stand alone test setup for CT257 RCC Processsor

VESTAS RCC  POWER MODULE TESTING
ITEM 883526 & 883528

V42-44 600KW RCC Test Setup



V66 1.65MW RCC  Test Setup


CT257 tester screen shot





CT257 Calibration Setup








RCC ECHO TESTER using service menu 22







Refurbishing  RCC power module start by dismantling all the parts, cleaning and testing each components.






We dont use  the old IGBTs, we use new 2011 date code new technology  IGBT which has higher current rating and lower switching loss. The power module will be more reliable 




New RCC driver board