Characterization and Calibration of Dual-Zone Temperature for Cable Torsion Testing Machines Used in Wind Power Generation

To study temperature calibration methods for torsion testing machines used for wind power cables, a method was proposed that assessed whether equipment temperature met requirements by measuring only the temperatures in the bottom and top regions of the equipment. Temperature calibration was performed on a FLN300 wind power cable torsion testing machine at temperatures of 60 °C, −15 °C, −40 °C, and −60 °C. The results showed that at different temperatures, the maximum temperature deviation occurred in the top region of the testing equipment, and the temperature deviation decreased gradually from the top to the bottom. At different temperatures, when the temperature in the top region of the equipment met the standard requirements, the internal temperature deviation of the equipment also satisfied the standard requirements. The temperature calibration verification process described in this paper provides a reference for the temperature calibration of such equipment and simplifies the calibration procedure.