RET670 1MRK004816-AC 交流变压器保护

概述

基本细节:RET670 1mrk004816 -交流变压器保护ABB

RET670为二绕组和三绕组变压器，自耦变压器，升压变压器和发电机变压器块，移相变压器，特种铁路变压器和并联电抗器提供快速和选择性保护，监测和控制。lED被设计为在宽频率范围内正确工作，以适应电力系统在干扰和发电机启动和关闭期间的频率变化。RET670具有快速、低阻抗的差动保护功能，对ct的要求非常低。它适用于具有多达六个约束C输入的多断路器安排的不同应用。差动保护功能具有二次谐波和波形块抑制功能，以避免CT饱和和变压器涌流跳闸，并具有五次谐波抑制功能，以避免变压器过激励跳闸。差动功能通过基于幅度测量和负序分量的定向比较的灵敏差动保护功能，为低电平的内部电流提供了高灵敏度。

多功能性:RET670控制继电器模块通常具有多个继电器通道，每个通道可以独立地控制一个或多个电气设备的开关状态。这使得它能够在单个模块上制功能。

高可靠性:该模块采用高品质的材料和先进的制造工艺，确保在恶会的工业环境下也能保持高可靠性。此外，它还条过严格的测试和验证，以确保长期易于配置:RET670控制继电器模块通常具有简单的配置接口和直观的指示灯，使得用户可以通过简单的设置和编程来实现所需的逻辑控制功能快速响应:继电器具有快速的动作特性，能够在毫秒级别内完成开关动作，确保及时响应系统指令紧凑设计: 该模块采用紧凑的设计，节省安装空间，并方便与其他控制设备和组件集成。

广泛的应用领域:RET670控制继电器模块适用于多种工业自动化和控制系统，如机械、流程工业、楼宇自动化等领域.

安全特性:该模块可能还包含过流保护、过压保护等安全特性，以保护设备和系统免受潜在的电气危害。

summarize

Basic details :RET670 1mrk004816 - AC transformer protection ABB

The RET670 provides fast and selective protection, monitoring and control for two - and three-winding transformers, autotransformers, booster transformers and generator transformer blocks, phase shifting transformers, special railway transformers and shunt reactors. Leds are designed to work correctly over a wide frequency range to accommodate frequency changes in the power system during disturbances and generator startup and shutdown. The RET670 features fast, low-impedance differential protection with very low ct requirements. It is suitable for different applications with multiple circuit breaker arrangements with up to six constrained C inputs. Differential protection features second harmonic and waveform block suppression to avoid CT saturation and transformer inrush current tripping, and fifth harmonic suppression to avoid transformer overexcitation tripping. Differential function provides high sensitivity to low internal currents through sensitive differential protection based on amplitude measurement and directional comparison of negative sequence components.

Versatility :RET670 control relay modules typically have multiple relay channels, each of which can independently control the switching state of one or more electrical devices. This allows it to produce functionality on a single module.

High reliability: The module uses high-quality materials and advanced manufacturing processes to ensure high reliability even in harsh industrial environments. In addition, it is subjected to rigorous testing and verification to ensure long-term ease of configuration: the RET670 control relay module usually has a simple configuration interface and intuitive indicator light, allowing users to achieve the required logical control function through simple setup and programming Fast response: the relay has a fast action characteristic, capable of completing the switching action in milliseconds. Ensures timely response to system instructions Compact design: The compact design of the module saves installation space and facilitates integration with other control devices and components.

Wide range of applications: The RET670 control relay module is suitable for a variety of industrial automation and control systems, such as machinery, process industry, building automation and other fields.

Safety features: The module may also include safety features such as overcurrent protection and overvoltage protection to protect equipment and systems from potential electrical hazards.