文章介绍了变压器经济运行方式，既节约了用电，提高了经济效益，又保证了变压器安全运行。

This paper introduces the economical operation mode of transformer. It brings power saving as well as ensures to transformer safety operation.

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在线测量变压器器身振动信号时，为保护后续仪器以及人身安全，设计了一套光电传输系统。

In order to protect the instrument and the experimentalist when the transformer tank vibration signal is on-line measured, a set of optical transmitting system is designed in this paper.

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为了有效预防变压器事故，本文介绍了一种基于视频监控系统的变压器风机机组状态自动识别方法，以保障变压器工作安全。

In order to effectively prevent power-transformer-accident, an automatic status-recognition method of fan based on video surveillance is proposed to provide guarantee for the security of transformers.

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