REX521GHHPSH50G 馈线保护继电器

ABB REX521GHHPSH50G 馈线保护继电器

馈线保护继电器REX521设计用于中压网络中的保护、控制、测量和监督，以及断路器控制电机驱动中的大中型三相交流电机的保护。典型应用包括输入、输出馈线和电机馈线以及变电站保护。此外，该继电器可以例如用作电力变压器的后备保护和高压线路保护继电器的后备。保护继电器为传统的电流和电压互感器提供激励输入。此外，还提供带有电流和电压传感器输入的硬件版本。REX 521馈线保护继电器进一步丰富了附加功能，为您的电力网络提供更有效的保护、扩展测量功能、监督、控制功能和连接性。REX521主要用于单母线解决方案，使用一个断路器进行各种保护。通过预制的标准配置，该装置可用于不同类型的网络，典型应用包括径向隔离中性线、谐振接地、牢固接地和电阻接地系统中的进线和出线。范围中压网络中的保护、控制、测量和监督，以及大中型三相交流电机的保护产品优势多功能保护产品特性常规电流和电压互感器的激励输入还提供带电流和电压传感器输入的版本。

保护继电器REX 521是专为保护，控制，测量和中压电网的监控。典型的应用包括传入和出线馈线以及变电站保护。提供保护继电器具有传统电流和电压互感器的激励输入。也是一个硬件版本与输入电流和电压传感器是可用的。该保护继电器基于多处理器环境。HMI包括LCD显示不同的视图，使本地使用方便，并告知用户通过指示消息。现代技术在硬件和软件方面都有应用软件解决方案。REX 521是配电变电站自动化概念的一部分自动化并进一步扩展了概念的功能和灵活性。

ABB REX521GHHPSH50G 馈线保护继电器

The feeder protection relay REX521 is designed for protection, control, measurement, and supervision in medium voltage networks, as well as protection of medium to large three-phase AC motors in circuit breaker control motor drives. Typical applications include input, output and motor feeders and substation protection. In addition, the relay can be used, for example, as backup protection for power transformers and backup for high-voltage line protection relays. Protective relays provide excitation inputs to conventional current and voltage transformers. In addition, hardware versions with current and voltage sensor inputs are available. The REX 521 feeder protection relay is further enriched with additional features to provide more effective protection, expanded measurement, supervision, control and connectivity for your power network. The REX521 is primarily used in single-bus solutions, using a single circuit breaker for various protections. With prefabricated standard configurations, the unit can be used in different types of networks, with typical applications including radially isolated neutral lines, resonant ground, solid ground, and resistance ground systems for incoming and outgoing wires. Protection, control, measurement, and supervision in a range of medium voltage networks, as well as protection products for medium to large three-phase AC motors Benefits Multi-function protection product features Excitation inputs for conventional current and voltage transformers are also available in versions with current and voltage sensor inputs.

The protective relay REX 521 is designed for the protection, control, measurement and monitoring of medium voltage power grids. Typical applications include incoming and outgoing feeders and substation protection. Protective relays are provided with excitation inputs from conventional current and voltage transformers. Also a hardware version with input current and voltage sensors is available. The protective relay is based on a multiprocessor environment. The HMI includes an LCD to display different views, make local use easy, and inform users by indicating messages. Modern technology has application software solutions in both hardware and software. REX 521 is part of the automation concept for distribution substation automation and further extends the functionality and flexibility of the concept.

ABB REX521GHHPSH50G 馈线保护继电器