Baoding Shangwei Electrical Technology Co., Ltd.'s optical fiber temperature measurement system for transformer windings is designed for the direct measurement of the temperature of high-voltage transformer coils. This optical fiber temperature measurement system for transformer windings is a self-developed product, capable of directly, in real-time, and accurately measuring the temperature of transformer coils. With both RS-232 data output and analog output, the optical fiber temperature measurement system for transformer windings is very easy to connect with monitoring and data collection systems or other data entry systems.