A new integrated state detecting and fault data recording system for generator-transformer unit is described in this paper. The major functions, hardware and software structures are presented. The developed device can provide important information for generator fault diagnosis and performance evaluation of the involved protective relays and automatic controllers.%新型发电机-变压器组微机监录与分析系统集运行状态监测、实验数据记录与分析以及故障数据记录与分析等功能于一体，以适应电厂状态检测和故障分析与诊断的需要。介绍了该系统的主要功能、硬件结构和软件设计特点。
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