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Home > Electrical & Electronics > Electrical Control System > ABB RET670 1MRK002816-AB Integrated Protection Relay

ABB RET670 1MRK002816-AB Integrated Protection Relay

Negotiable MOQ: 1 Piece (Price negotiable depending on order volume and customization)

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Material:

Other, Global universal model

Condition:

Other, Global universal model

Task:

Other, Global universal model

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Guizhou Yuanmiao Automation Equipment Co., Ltd.

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China

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Material Other, Global universal model

Condition Other, Global universal model

Task Other, Global universal model

Mathematical Model Other, Global universal model

Signal Other, Global universal model

Customized Non-Customized

Structure Other, Global universal model

Input voltage 110-220V DC

Dimensions 190mm×210mm×150mm

Weight Approximately 3.5 kg

Temperature -25℃ to +70℃

I. Model Affiliation and Product Positioning

Model Affiliation: The RET670 belongs to ABB's Relion series of digital protection relays, specifically designed for line protection and control in medium and high-voltage power systems. It is a standard configuration model within the RET670 series.
Product Positioning: As an Intelligent Electronic Device (IED), it integrates primary line protection, backup protection, measurement, control, and communication functions. It supports applications in traditional substations and digital substations (IEC 61850), suitable for protection scenarios of transmission lines, distribution feeders, and cables with voltage levels from 3kV to 220kV.

II. Technical Parameters

Parameter Category	Detailed Specifications
Protection Functions	- Primary Protection: ▶ Distance protection (three-stage phase-to-phase/ground distance, supporting offset characteristics and circular characteristics) ▶ Current differential protection (requires fiber optic communication, supports line longitudinal differential) ▶ Directional overcurrent protection (instantaneous/limited-time instantaneous/definite-time overcurrent with direction element) ▶ High-frequency protection (requires external transceiver, supports phase difference and high-frequency distance) - Backup Protection: ▶ Zero-sequence overcurrent protection (four-stage), overvoltage/undervoltage protection, underfrequency/overfrequency protection ▶ Reclosing (single reclosure, supporting synchronism checking and no-voltage checking) - Auxiliary Functions: ▶ Circuit breaker failure protection, automatic tripping logic, load limitation protection, overload alarm/tripping.
Measurement and Metering	- Real-time monitoring of parameters such as three-phase voltage, current, active/reactive power, frequency, power factor, etc., with a measurement accuracy of ±0.5% - Supports electrical energy metering (active/reactive), compliant with IEC 62053-22 standard, with a resolution of 0.01kWh - Fault recording: Records 10 cycles before and 50 cycles after a fault, with a sampling rate of 2000Hz, supporting COMTRADE format export.
Communication Interfaces	- 2× Ethernet ports (supporting IEC 61850-3, Modbus TCP, EtherNet/IP) - 2× RS-485 serial ports (supporting Modbus RTU, IEC 60870-5-103) - GOOSE/SMV message transmission (adapted to sampled value and tripping signal transmission in digital substations) - Supports optical fiber interface (optional), compatible with IEEE 1588 network time synchronization (synchronization accuracy ≤1ms).
Power Requirements	- Input voltage: 110-220V DC or 110-240V AC (wide-range compatibility), power consumption ≤30W - Supports dual-power redundant input with surge protection design.
Physical Characteristics	- Dimensions: 190mm×210mm×150mm (standard 19-inch rack mounting) - Weight: Approximately 3.5kg - Protection class: IP20 (panel), supporting rail or panel mounting.
Operating Environment	- Temperature: -25°C to +70°C (wide-temperature design without fans) - Humidity: 5% to 95% (non-condensing) - Vibration/impact resistance: Complies with IEC 60068-2-6/2-27 standards, EMC class complies with IEC 61000-6-5.

III. Core Functions and Features1. Specialized Line Protection Design

Optimized Distance Protection: Supports multi-stage distance protection characteristics, with built-in load limitation function to avoid misoperation caused by out-of-zone faults or load fluctuations; the protection range can be customized according to line parameters (such as length and impedance).
Accuracy of Directional Elements: Adopts phasor calculation direction logic, adapts to complex power grid topologies, and prevents misoperation for reverse faults.
Intelligent Reclosing: Supports synchronism-checking reclosing (detecting phase difference of voltages on both sides) and no-voltage-checking reclosing (detecting no voltage on the line) to improve power supply reliability.

2. Digitalization and Communication Capability

Supports the IEC 61850 communication protocol, enabling docking with Merging Units (MUs) and Smart Terminals (STs), adapting to digital substation architectures;
GOOSE fast tripping signal transmission (response time ≤2ms) meets the need for rapid line fault removal;
Supports real-time communication with SCADA systems to upload protection status, measurement data, and fault recording information.

3. Convenient Human-Machine Interaction and Debugging

The front panel is equipped with a 4.3-inch color touchscreen, supporting real-time data display, modification of protection settings, and query of event records (storing up to 1,000 events);
Achieves graphical programming through ABB Relion® configuration tools (such as Relion 600 Series Manager), supporting logic configurations like ladder diagrams and function block diagrams.

4. Reliability Design

The hardware adopts a dual-CPU redundant architecture, and key circuits undergo dual verification to prevent misoperation and refusal to act;
Built-in self-checking functions (CPU, memory, communication link monitoring), supporting regular self-testing, compliant with IEC 61508 functional safety standards;
Electromagnetic interference protection design adapts to strong interference environments in industrial fields.

IV. Application Fields

Power Systems: Protection for 3kV~220kV transmission lines, distribution feeders, and cable lines;
Industrial Scenarios: Protection for dedicated transmission lines in metallurgy, petrochemicals, mining, and other industries (such as high-voltage lines in plants and outgoing lines of captive power plants);
Renewable Energy: Protection for collector lines in wind farms/solar power plants and grid-connected lines in energy storage stations;
Critical Facilities: Line protection in scenarios with high requirements for power supply reliability, such as data centers, hospitals, and rail transit.

V. Typical Configurations and Networking1. Traditional Substation Mode

Connects CT/PT (current transformers and voltage transformers on each side of the line) and circuit breakers through hardwiring, receives switching value inputs (such as disconnector positions), and realizes protection functions.

2. Digital Substation Mode

Accesses MU (Merging Unit) via optical fiber to receive sampled values (SMV), controls circuit breaker tripping through GOOSE messages, and communicates with the substation control layer system (SCADA).

3. System Integration

Docks with ABB Ability™ smart grid management systems to achieve line condition monitoring (such as sag monitoring and short-circuit current trends), fault location, and intelligent dispatching.

VI. Comparison with Series/Similar Products

Model	RET670 1MRK002816-AB	REF615C_C (Transformer Protection)	REF542plus (Line Protection)
Core Positioning	Dedicated line protection	Dedicated transformer protection	Dedicated line protection (basic version)
Primary Protection Functions	Distance protection, current differential, directional overcurrent	Transformer differential protection, gas protection	Distance protection, directional overcurrent (simplified functions)
Voltage Level	3kV~220kV	10kV~220kV	10kV~220kV
Communication Protocols	IEC 61850, Modbus, EtherNet/IP	Same as RET670	Same as RET670
Typical Applications	Transmission lines, long-distance cables	Main transformers, large industrial transformers	Distribution feeders, short-distance lines

VII. Common Faults and Maintenance Suggestions1. Distance Protection Misoperation

Check whether line parameters (such as positive-sequence/zero-sequence impedance) match the setting values;
Confirm whether the distance protection characteristic curve (such as the offset degree of offset characteristics) adapts to the power grid operation mode, and exclude Skip level tripping caused by out-of-zone faults.

2. Communication Interruption

Check network cable connections and switch port status, and test network connectivity using the ping command;
Confirm whether the device IP, MAC address, and GOOSE control block configuration in the IEC 61850 configuration file (SCD) are correct.

3. Reclosing Failure

Check whether reclosing conditions (such as no-voltage detection threshold and synchronism angle limitation) are met;
Confirm whether the auxiliary contact status of the circuit breaker is correctly fed back to the device, and exclude hardware circuit faults (such as a damaged closing coil).

Product Tags: RET670 , 1MRK002816-AB