RET620是ABB Relion产品家族中的620保护测控装置产品系列的一员，是一款专用的变压器测控保护装置，为变电站和工业配电系统中的电力和升压变压器（包括发电机变压器组）提供完美的一体化的保护、控制、测量和监视功能。以下是RET620馈线保护装置的优势、特点、应用场景和产品说明：

1. 优势：

• 集成化设计：集成在一台继电保护装置中的保护、控制、监测和管理为公共和工业配电系统提供了紧凑和通用的方案。
• 多功能性：具有广泛的保护和控制功能，可以用传感器或传统的CT、PT功能的可扩展性和广泛的应用性，使用户可轻松定制配置应用程序以满足具体要求。
• 快速安装和测试：采用带单线图显示的大液晶屏，可通过本地或易于连接和浏览的HMI来访问周到的产品全寿命周期服务。

2. 特点：

• 先进的保护和测控功能：具有多频导纳接地保护组合，具有先进、快速的短路、接地故障定位功能。
• 多种可选的功能包：适用于分布式发电、电容器、基本的电机和弧光保护。
• 通信协议支持：支持IEC61850第一版和第二版，包括冗余HSR和PRP，GOOSE和IEC61850-9-2。同时支持Modbus、DNP3，IEC 60870-5-103通信协议和不同时间同步的方法，包括IEEE 1588 v2的精密时间协议。

3. 应用场景：

RET620馈线保护装置广泛应用于各种需要高性能、高可靠性的工业自动化配电系统，如变电站、工厂等。它可用于对电力和升压变压器进行保护、控制、测量和监视，确保电力系统的稳定运行。
4. 产品说明：

RET620馈线保护装置是一款专用的变压器测控保护装置，为变电站和工业配电系统中的变压器提供一体化的保护、控制、测量和监视功能。它基于IEC 61850标准全新研发和设计，支持变电站内自动化设备互操作与水平通信等特性。该装置具有功能可扩展性和易拆卸的特点，可广泛应用于各种规模的工业自动化配电系统。

RET620 is a member of the ABB Relion product family's 620 protection measurement and control device product series. It is a specialized transformer measurement and control protection device that provides perfect integrated protection, control, measurement, and monitoring functions for power and step-up transformers (including generator transformer groups) in substations and industrial distribution systems. The following are the advantages, characteristics, application scenarios, and product descriptions of the RET620 feeder protection device:

Advantages:

Integrated design: The protection, control, monitoring, and management integrated into a relay protection device provides a compact and universal solution for public and industrial distribution systems.

Multifunctionality: With a wide range of protection and control functions, it can be extended and widely applied with sensors or traditional CT and PT functions, allowing users to easily customize and configure applications to meet specific requirements.

Quick installation and testing: Equipped with a large LCD screen with single line diagram display, it can access comprehensive product lifecycle services through local or easily connected and browsed HMI.

Features:

Advanced protection and measurement and control functions: equipped with a multi frequency admittance grounding protection combination, with advanced and fast short-circuit and grounding fault positioning functions.

Multiple optional feature packages: suitable for distributed generation, capacitors, basic motors, and arc protection.

Communication protocol support: Supports the first and second versions of IEC61850, including redundant HSR and PRP, GOOSE, and IEC61850-9-2. Simultaneously supports Modbus, DNP3, IEC 60870-5-103 communication protocols, and different time synchronization methods, including the IEEE 1588 v2 precision time protocol.

Application scenario:

The RET620 feeder protection device is widely used in various industrial automation distribution systems that require high performance and reliability, such as substations, factories, etc. It can be used for protection, control, measurement, and monitoring of power and step-up transformers to ensure the stable operation of the power system.

4. Product Description:

The RET620 feeder protection device is a specialized transformer measurement and control protection device that provides integrated protection, control, measurement, and monitoring functions for transformers in substations and industrial distribution systems. It is newly developed and designed based on the IEC 61850 standard, supporting features such as interoperability and horizontal communication of automation equipment in substations. This device has the characteristics of functional scalability and easy disassembly, and can be widely used in industrial automation distribution systems of various scales.