设备功率管IGBT测量方法，1、2、3脚分别是G、C、E，用万用表10K欧姆档测量，黑表笔接第2脚，红表笔接第3脚。用手触摸1、2脚导通，触摸1、3脚截止，说明这个功率管是完好的。

How to measure the IGBT？

Measurement method for IGBT of equipment power transistor, pins 1, 2, and 3 are G, C, and E respectively, measured with a multimeter in 10K ohm range, with the black probe connected to pin 2 and the red probe connected to pin 3. Touch pins 1 and 2 with your hand to turn on, and touch pins 1 and 3 to turn off, indicating that this power transistor is intact.