The ABB transmission line distance protection device provides five-stage full-scheme phase-to-phase and ground distance protection, and can choose quadrilateral characteristics or ohmic circular characteristics with or without series compensation. It has load impedance intrusion detection function, which can improve the sensitivity of detecting high-resistance faults in heavy-load lines. The power system oscillation detection function can avoid protection malfunction when the power system oscillates due to the removal of parallel lines or heavy loads or the tripping of large generators. It also has a built-in system oscillation detection function, which can avoid protection malfunction caused by power system oscillation caused by the removal of parallel lines or heavy loads or the tripping of large generators.

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　　RES670 Other names:

　　Microcomputer protection RES670

　　RES670 voltage protection device

　　Relay protection device RES670

　　ABB transmission line distance protection RES670 is an intelligent microcomputer protection device designed for power systems. It has comprehensive protection functions, flexible configuration capabilities and high reliability. It is widely used in overhead line and cable protection in transmission networks.

　　Core functions and features

　　Distance protection:

　　RES670 provides five-stage full-scheme phase-to-phase and ground distance protection, and can choose quadrilateral characteristics or ohm-type circular characteristics with or without series compensation.

　　With load impedance intrusion detection function, it can improve the sensitivity of detecting high-resistance faults in heavy-load lines.

　　The power system oscillation detection function can avoid protection malfunction when the power system oscillates due to the removal of parallel lines or heavy loads or the tripping of large generators.

　　System oscillation detection and anti-malfunction

　　The built-in system oscillation detection function can avoid protection malfunction caused by power system oscillation caused by parallel lines or heavy load removal and large generator tripping.

　　By detecting the system frequency slip (0.2Hz-8Hz), the trip is triggered after exceeding the set number of out-of-step times to ensure system stability.

　　Differential protection:

　　RES670 can be used to realize differential protection of equipment such as generators and transformers to ensure current balance inside the equipment.

　　Overcurrent protection:

　　It provides a variety of overcurrent protection functions such as instantaneous phase overcurrent protection, four-stage delayed phase overcurrent protection, instantaneous zero-sequence current protection, and four-stage zero-sequence overcurrent protection.

　　Voltage protection:

　　It includes two-stage low voltage protection, two-stage overvoltage protection, two-stage zero-sequence overvoltage protection, etc., to ensure that the transmission line is protected when the voltage is abnormal.

　　Frequency protection:

　　It provides low frequency protection, overfrequency protection, frequency change rate protection, etc. to prevent equipment damage caused by frequency abnormality.

　　Flexible configuration and scalability

　　RES670 provides two solutions: user-defined version and pre-configured version. The pre-configured version has complete functions and is suitable for four application scenarios such as single circuit breaker or multi-circuit breaker wiring, single-phase or three-phase tripping; the customized version allows users to freely choose the function configuration according to their needs.

　　The hardware design is flexible and scalable, supporting distance protection of double-circuit lines, multi-circuit parallel lines and series compensation lines to meet the needs of different power grid architectures.

　　Rich communication and monitoring functions

　　Supports multiple communication protocols, including IEC61850-8-1, IEC60870-5-103, TCP/IP, EIA-485, DNP3.0, etc., and can exchange data with SCADA systems, remote monitoring systems, etc.

　　With fault recording and event recording functions, it can record 40 analog signals and 96 switch signals, which is convenient for fault analysis and troubleshooting by operation and maintenance personnel.

　　Powerful protection function library

　　Provides multiple backup protection functions such as overcurrent protection, zero-sequence overcurrent protection, thermal overload protection, circuit breaker failure protection, etc., to ensure that the fault can be reliably removed when the main protection fails.

　　Supports directional power protection, low voltage/overvoltage protection, frequency protection, etc., to comprehensively improve the safety and reliability of the power system.

　　Automatic reclosing and synchronization function: supports single-phase, two-phase, and three-phase automatic reclosing functions, and can achieve fast or slow reclosing with the synchronization detection function.

　　Technical features

　　Flexible configuration: RES670 supports flexible configuration and programming. Users can customize personalized protection schemes according to actual needs and the characteristics of the power system.

　　High-precision measurement: It adopts advanced digital signal processing technology, which can measure electrical parameters such as current and voltage with high precision to ensure the accuracy of protection action.

　　Fast response: It has a fast response speed and can quickly cut off the fault circuit when a fault occurs to prevent the fault from expanding and equipment damage.

　　Communication capability: It supports multiple communication protocols and interfaces, such as IEC61850-8-1, IEC60870-5-103, TCP/IP, EIA-485, DNP3.0, LON and SPAN C37.94, etc., which is convenient for data exchange and remote monitoring with other devices and systems.

　　Fault recording and event recording: It integrates fault recording and event recording functions, and can record 40 analog signals and 96 switch signals, which is convenient for fault analysis and troubleshooting.

　　Application scenarios

　　RES670 is suitable for the control, protection and monitoring of different types of electrical intervals in the power grid, and is particularly suitable for distributed control systems with high reliability requirements. It can be used for various busbar wiring methods, control and protect up to 6 feeder intervals, and control up to 30 controllable devices. Whether it is a new plant or an old station renovation, RES670 is an excellent choice.

　　Improve the reliability of the power system

　　RES670 effectively avoids false operation and refusal to operate through precise distance protection and oscillation detection functions, reduces power outage time, and ensures stable operation of the power grid.

　　Reduce operation and maintenance costs

　　The device has event recording and fault recording functions. Operation and maintenance personnel can quickly locate the cause of the fault by analyzing the recorded data and reducing the troubleshooting time.

　　Flexible configuration and scalability enable the device to adapt to the needs of different power grid architectures and reduce the cost of equipment replacement and upgrades.

　　Adapt to complex power grid environments

　　RES670 supports T-type wiring and high-impedance differential protection of busbar systems, and is suitable for complex power grid topologies.

　　Its highly sensitive distance protection function can effectively detect high-resistance faults in heavy-load lines, ensuring the safety of the power grid under heavy load conditions.

　　Improve system efficiency

　　Through synchronization, synchronous detection and no-voltage detection functions, RES670 can achieve single-phase/two-phase/three-phase automatic reclosing, reduce power outage time and improve power supply reliability.

　　The device supports priority circuits for multi-circuit breaker wiring, optimizes reclosing logic, and improves power grid operation efficiency.

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　　The specific quotation is subject to customer service, because the product is a new product and the price is not real.

　　Please confirm the model and product, price and other detailed information with customer service before placing an order. The website has been used.

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