Based on the abnormalities and faults of the cooling system of the OFAF transformer during its operation, this essay discovers its problems and design flaws through analyses and on-the-spot experiments as well as putting forward relevant scheme for its improvement and optimization, to ensure real-time and effective monitoring of it and the safe operation of the transformer.%针对强迫油循环风冷变压器冷却系统在运行中出现的特殊异常和故障，通过分析和现场试验发现存在的问题及设备的设计缺陷，并提出改进、优化方案，保证对冷却系统的实时、有效监控，确保变压器安全运行。
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