Description

Overview

Essential details：RED670 Intelligent Electronic Device

Product Description

ABB RED670 is an Intelligent Electronic Device (IED) designed to protect, monitor and control overhead lines and cables. It is capable of handling protection tasks for up to five line terminals and is suitable for networks of all voltage levels, from distribution level to the highest voltage level. The RED670 device has the following features and functions:

Split-phase line differential protection: The RED670 provides high-precision differential protection, enabling single-phase/two-phase/three-phase tripping and automatic reclosing, including synchronization and simultaneous checking functions.

Absolutely selective protection without time grading: The RED670 is capable of instantaneously cutting out all types of line short circuits and ground faults, providing highly sensitive protection that can detect small fault currents, including high-resistance ground faults.

Pre-configured solution: RED670 equipment is pre-configured at the factory, type-tested, with default parameters, simplifying the entire process from ordering, engineering, commissioning to reliable operation.

Built-in features: In addition to differential protection, the RED670 also has distance protection, overcurrent protection, negative sequence overcurrent protection, voltage protection, frequency protection and a variety of other protection features.

Integrated control and monitoring functions: The RED670 is designed in accordance with IEC 61850 standards to achieve all aspects of functionality, ensuring the openness, future and flexibility of the system.

Advanced interlocking function: RED670 has a powerful interlocking function to avoid potential hazards or damage to switchgear operation and ensure personnel safety.

Human Machine Interface (HMI) : The integrated HMI allows secure and fast local control, providing immediate access to important data such as Settings, events, and interference information.

Redundant communication: RED670 supports the IEC 62439 standard for redundant communication, improving the reliability of the communication system and achieving zero second recovery time.

Synchronous sampling communication: RED670 supports synchronous sampling communication via the IEC 61850-9-2 LE standard process bus, contributing to the efficiency of substation design and maintenance.

Technical Performance: The RED670 provides a wide range of technical performance, including but not limited to fault recording, event recording, measurement functions (such as voltage, current, power, frequency, etc.), control functions, and communication functions.

The design and functionality of the RED670 make it ideal for new substations and retrofit of older stations, providing highly reliable protection, control and monitoring solutions for power systems.

RED670

Product parameter

The specific parameters of ABB RED670 are as follows:

Line differential protection: The RED670 device provides split-phase line differential protection based on Kirchhoff’s current law, comparing currents entering and leaving the protected area for applications with 2 to 5 line terminals.

Transformer differential protection: can include two double-winding transformers or a three-winding transformer in the differential protection area, with vector group compensation and 2nd and 5th harmonic suppression functions.

Impedance protection: Provides three zone full scheme protection, with independent phase selection and load intrusion functions, suitable for single-phase automatic reclossing.

Current protection: including instantaneous phase overcurrent protection, four-step phase overcurrent protection, instantaneous residual overcurrent protection and four-step residual overcurrent protection.

Voltage protection: includes two-step low voltage protection, two-step overvoltage protection, two-step residual overvoltage protection and overexcitation protection.

Frequency protection: includes low frequency protection, high frequency protection and frequency change rate protection.

Multifunctional protection: can be used as negative sequence current protection to detect asymmetric conditions such as open phase or asymmetric faults.

Secondary system monitoring: Includes current loop monitoring to avoid misoperation due to current transformer (CT) failure.

Control function: including synchronous check, automatic reclosing, device control, etc.

Communication functions: Support IEC 61850-8-1, IEC 60870-5-103, DNP3.0 and other communication protocols, as well as Ethernet and optical fiber communication.

Human Machine Interface (HMI) : The integrated HMI provides a local control and remote system operation interface.

Hardware description: RED670 devices are typically mounted on a 19-inch rack with an IP40 (front panel) protection rating.

Technical data:

Analog input: rated and nominal range, e.g. AC voltage 110V, frequency 50/60 Hz.
mA input module: Input resistance 194 ohms, input range ±5, ±10, ±20 mA.
Binary input/output modules: includes a variety of voltage levels and power consumption specifications.
Environmental test: including cold operation test, cold storage test, dry heat test, wet heat test, etc.

Electromagnetic compatibility: Meet specific electromagnetic interference and immunity standards.

Insulation monitoring: including ground insulation resistance and ground fault monitoring.

Event logger and fault location: able to record the data before and after the fault, and determine the fault location.

Pulse counting logic and energy metering: for power statistics and demand processing.

Time synchronization: Multiple time synchronization standards are supported, such as IRIG-B and IEEE 1588.

These parameters and features ensure that ABB RED670 provides reliable protection and monitoring in a wide range of grid conditions.

APPLICATION

ABB RED670 products have a wide range of applications, including but not limited to the following:

Power System Protection: The RED670 is designed to protect overhead lines and cables in power systems for a wide range of networks from distribution levels to the highest voltage levels. It provides protection for both heavy-duty and multi-terminal lines, including single-phase, two-phase and/or three-phase trips.

Substation Automation: As an intelligent electronic device (IED), RED670 can be integrated into substation automation systems to provide line differential protection, impedance protection, current protection, voltage protection, frequency protection, and multi-function protection.

Industrial Automation: RED670 can be used in the field of industrial automation to provide protection and control for various electrical equipment and systems to ensure stable operation.

Process control: In the chemical, petroleum, metallurgical, paper, textile and water treatment industries that require precise control and monitoring, the RED670 provides the necessary protection functions.

Distributed energy systems: RED670 can be applied to distributed energy systems, such as wind power generation, solar power generation, etc., to provide protection and control for these systems.

Improved Grid Reliability: RED670 helps improve grid reliability and availability by providing advanced differential protection and automatic reclosing capabilities.

Smart Grid: The RED670 can serve as a key component in the development of a smart grid, supporting advanced monitoring, automated control and communication functions.

Retrofit and upgrade of existing systems: The flexibility and advanced features of the RED670 make it ideal for retrofit and upgrade of existing power systems.

Communication network: The RED670 device has a communication interface that can communicate with the monitoring system, SCADA system or other automation equipment to achieve remote monitoring and control.

RED670’s versatility and high degree of integration make it a key component of protection and control systems in the power and industrial sectors.

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