The paper introduces a successful digital synchronous motor protection which is produced recently. The protection meets market on the point that the digital synchronous motor protection must be sensitive and credible. It owns three characteristic protections, i.e. blackout protection, loss-of-field protection and out-of-step protection which are based on vast data and careful analysis. It adopts high reliable hardware platform and VLD exploitation technology. It has not only perfect protective function but also observable and controllable function. It adapts to synchronous motor and asynchronous motor. It is an integrative device which has high quality and capability/price ratio.%介绍了最新研制成功的微机型同步电动机保护装置,该装置针对市场对同步电动机保护产品灵敏度高、动作可靠的迫切需求开发出来,在大量现场数据的基础上通过缜密的理论分析形成本装置独具特色的断电、失磁、失步三大保护判据.本保护装置采用了高可靠的硬件平台以及VLD开发技术,具有完善的保护功能的同时还具有一定的测控功能,不仅适用于同步电动机保护还适用于异步电动机保护,是一款具有高品质、高性价比的保护测控一体化装置.
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