RED670 ABB Relion 670系列线路差动保护

RED670 ABB Relion 670系列线路差动保护

ABB Relion 670系列线路差动保护 RED670，11/2和多断路器配置中的所有单个相电流都可以连接到RED670，无需外部设备求和。因此，每个电流将总是正确的有分寸。这提高了线路差速器的稳定性保护功能，并支持集成多个断路器相关的保护和控制功能。保护区内的电力变压器 RED670能够处理两个或三个绕组的电源受保护区域内的变压器。线路差分保护功能处理所有变压器绕组矢量将所有转换器配置分组并与简单的参数设置。这简化了工程，因为没有需要辅助电流互感器或其他保护设备。先进的稳定方法用于检测通电期间的变压器浪涌电流，以确保电力变压器故障时的灵敏差动保护包括在受保护地带中。当小变压器作为线路上的分接头连接时，线路差动保护可以在没有的情况下使用额外的RED670安装在变压器分接头处。代表低抽头变压器后的故障电流线路差动 RED670的保护包括一个有用的确定时间或反时限延迟特性。这使得选择性位于抽头的其他保护功能的操作变压器的高压或低压侧。为线路和电缆提供广泛的内置保护 RED670具有集成的距离保护功能，以确保在通信故障时清除故障。完整的方案距离保护提供独立的相位选择、功率摆动检测和多种方案交流逻辑。四区距离保护是随着负载侵蚀而进一步增强，这增加了在重载时检测高阻故障的能力台词。您可以通过以下方式增加RED670 IEDs的功能可选的备份和多用途保护功能。多功能过流和热过载功能提供额外的后备保护。 

RED670 ABB Relion 670系列线路差动保护

ABB Relion 670 Series line Differential Protection RED670, all single phase currents in 11/2 and multi-breaker configurations can be connected to the RED670 without the need for external device summation. Therefore, each current will always be correctly measured. This improves the stability protection of the line differential and enables the integration of multiple circuit breaker related protection and control functions. The RED670 is capable of handling transformers within the protected area of two or three windings of the power supply. The line differential protection feature handles all transformer winding vectors grouping all converter configurations and setting with simple parameters. This simplifies engineering as there is no need for auxiliary current transformers or other protective equipment. Advanced stabilization methods are used to detect transformer inrush current during power-on to ensure sensitive differential protection in the event of power transformer failure is included in the protected zone. When a small transformer is connected as a tap on the line, line differential protection can be installed at the transformer tap without an additional RED670. Protection for line differential RED670 representing fault current after a low tapped transformer includes a useful deterministic or inverse time delay feature. This allows selective tapping of other protective functions on the operating transformer's high or low voltage side. Extensive built-in protection for lines and cables The RED670 features integrated distance protection to ensure troubleshooting in the event of a communication failure. Complete scheme distance protection provides independent phase selection, power swing detection and multiple scheme AC logic. Four-zone distance protection is further enhanced with load erosion, which increases the ability to detect high-resistance failures at heavy loads. You can increase the functionality of RED670 IEDs in the following ways: Optional backup and multi-purpose protection. Multifunctional overcurrent and thermal overload functions provide additional backup protection.