UPS 1000Z, UPS 1200Z, UPS500G and UPS600G Uninterruptible Power Supplys Caterpillar


System Bypass Operation

Usage:

UPS 600G DLD
旁通电路会出于下述原因之一向关键母线供电:

  • 当系统需要保养时

  • 在由于持续过载或出现故障 UPS 无法保持负载的供电电压。

旁通电路提供了一条直接从备用交流(旁通)电源供电的路径。 UPS 控制系统持续监控系统旁通电路的可用性,以备进行转换。

系统旁通电路由以下部件组成:

  • 静态旁通开关

  • UPS 输出接触器

  • 系统旁通接触器

UPS 输出接触器用于隔离 UPS 模块的输出。 系统旁通接触器与选装的静态旁通开关(如有配备)并联工作。 静态旁通开关是一个固态装置,该装置可以即刻将替代交流电源与负载连接起来。

Caterpillar Information System:

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