BENTLY 3500/54M提高生产效率的解决方案
接地过流
对于零序接地过流保护。电动机的三个导体必须采取经由单独的接地CT进行接线的方案。这些CT可以进行选择配置或者用于檀测高阻抗零序接地,或者用于检测残余接地电流。接地故障跳闸能舞时启动,或最长延时255秒。选择接地故障动作值时应当尽量选择比较低的动作值,目的是为了尽量多地考虑定子绕组保护。对于接地故障检测可以选择使用50025A的CT(1A或SA)。.快速跳闸/机械故障电动机的快速停止转动能够减少对齿轮。轴承和其它与电动机驱动机构相关的机械零件的损坏。浪浦电流能够促使用于快速跳闸/机械故障功能的继电器处于激活状态。用户可设置动作值、跳闸延时时间和预警报警.
定子过温度(选择R)
可选择的定子绕组过温度保护功能最多可实现对12个定子RTD的监视。如果用于定子监视的RTD少于6个,剩下的RTD可用于任何其它温度监视功能,用户可以设置单独的RTD报警,高报警和跳闸值。
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