RED670 ABB DCS Protection and Control Relay

• Brand
  ABB
• Model
  RED670
• Product Name
  Advanced Numerical Busbar Protection and Control Relay
• Country of Origin
  Sweden
• HS Code
  8537101100
• Dimensions
  260mm×180mm×120mm
• Weight
  3.5kg
• Operating Temperature
  -25°C to +70°C
• Storage Temperature
  -40°C to +85°C
• Power Supply
  24VDC
• Warranty
  12 month
• Product Status
  New and original

ABB RED670 Product Introduction and Technical Specifications

Input Technical Parameters

Power Supply Input: Supports universal industrial power supply input, including AC 85V to 265V and DC 88V to 250V wide-range voltage input. It can withstand short-term voltage fluctuations and transient surges of power grid systems, adapting to unstable power supply conditions of on-site substation control power.

Analog Signal Input: Equipped with multi-channel high-precision current and voltage analog input interfaces, matching standard CT and PT secondary signal output of power systems. It can collect real-time busbar current, voltage, phase angle and other operating parameters with high sampling accuracy, providing accurate data basis for protection judgment.

Digital Signal Input: Built-in multi-channel isolated digital switch input terminals, which can access circuit breaker position signals, isolating switch status signals, external interlock signals and fault reset signals, realizing real-time monitoring of power system equipment status.

Output Technical Parameters

Relay Trip Output: Configured with high-power trip relay output channels, which can directly drive circuit breaker trip coils to realize fast fault isolation. The output has strong anti-overload capability and high action reliability, ensuring reliable trip operation under fault conditions.

Signal Alarm Output: Multiple programmable alarm relay outputs are available, which can output fault alarm, device abnormal, protection activation and other status signals to remind on-site staff of system abnormal conditions in time.

Communication Output: Integrated multiple industrial communication interfaces, including Ethernet, RS485 and optical fiber communication ports, supporting IEC61850, Modbus and other mainstream power communication protocols. It realizes real-time upload of operating data, fault recording information and remote parameter configuration, supporting seamless docking with substation monitoring systems.

Self-diagnosis Output: Built-in device self-diagnosis function, which can output equipment operation abnormality, circuit fault and program exception signals, realizing real-time monitoring of the device’s own operating status.

RED670 ABB Product Core Advantages

Ultra-High Protection Reliability: Adopts ABB’s mature busbar differential protection algorithm and industrial-grade anti-interference components, with strong ability to resist power grid electromagnetic interference. It features fast fault response speed and accurate fault judgment, effectively avoiding protection refusal and misoperation, and greatly improving the safety and stability of substation busbar operation.

Powerful Integrated Functions: Integrates busbar differential protection, fault monitoring, status interlock, remote communication and self-diagnosis functions in one device, replacing multiple traditional single-function protection devices. It simplifies the substation secondary circuit system structure and reduces equipment investment and later maintenance costs.

Flexible Configuration Adaptability: Supports flexible configuration of protection logic and functional parameters, adapting to various busbar connection modes such as single busbar, double busbar and sectionalized busbar. It can meet the protection requirements of different voltage levels and capacity power distribution systems, with strong scene adaptability.

RED670 ABB Wiring Method

The ABB RED670 adopts rear fixed terminal block wiring design with clear functional partition, including power supply wiring area, analog signal wiring area, digital control wiring area, trip output wiring area and communication wiring area, realizing standardized and standardized on-site wiring construction.

For power supply wiring, connect the substation control power supply to the dedicated power input terminals according to AC or DC power supply type, confirm the correct voltage range and firm wiring, and configure overvoltage and undervoltage protection accessories as required to ensure stable power supply for the device.

For analog signal wiring, connect CT and PT secondary signal lines to the analog input terminals in strict accordance with phase sequence and polarity specifications, use shielded cables for wiring, and do a good job of grounding treatment to avoid electromagnetic interference affecting signal sampling accuracy. For digital signal wiring, connect on-site switch status and interlock signals to digital input terminals to complete equipment status signal acquisition.

For trip and alarm output wiring, connect relay output terminals to circuit breaker trip loops and on-site alarm devices respectively, check the output loop insulation and conduction performance to ensure reliable action of protection output. For communication wiring, select Ethernet or optical fiber communication mode according to the upper monitoring system requirements, complete cable connection and protocol parameter matching debugging.

After all wiring is completed, conduct comprehensive circuit inspection, insulation test and signal simulation test, calibrate protection parameters, and perform trial operation to confirm that the device’s protection, monitoring and communication functions operate normally.

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  RED670 ABB datasheet pdf
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