Description
The ABB RET670 (part number 1MRK004816-CE) is a numerical transformer protection and control intelligent electronic device (IED) from the Relion 670 series. It is engineered for the comprehensive protection, monitoring, and control of power transformers, autotransformers, and unit transformer-generator blocks in high-voltage transmission and industrial power systems.
Commercial and Logistics Status
| Parameter | Value |
| Condition | Factory Sealed / New Surplus (Verify specific unit revision upon inquiry) |
| Availability | Subject to current inventory status |
| Standard Lead Time | 3 to 5 business days for domestic shipping; international freight times vary |
| Warranty | 12 months standard replacement warranty |
| Pricing Note | Price subject to market conditions; contact us for a firm quote |
Technical Specifications
| Parameter | Value |
| Manufacturer | ABB |
| Product Family | Relion 670 Series (RET670 Transformer Protection) |
| Catalog / Part Number | 1MRK004816-CE (Variant suffix denotes specific hardware module and software function package) |
| Primary Protection Functions | Percentage-biased differential protection, restricted earth fault (REF), thermal overload, backup overcurrent, and voltage protection |
| Auxiliary Voltage | 24–60 V DC, 90–250 V DC, or 110–230 V AC (verify module rating plate) |
| Communication Protocols | IEC 61850-8-1, IEC 60870-5-103, DNP3, and Modbus via optical or electrical Ethernet ports |
| Binary Inputs / Outputs | Modular configuration (verify exact I/O card layout per specific hardware build) |
| Operating Temperature | −25 to +55°C (continuous operation) |
| Dimensions / Weight | Standard 19-inch rack mounting case (approx. 14.5 kg depending on slot population) |
| Certifications | CE, cULus, IEC 60255 compliance |
Engineering and Field Integration Notes
When commissioning or retrofitting an ABB RET670 IED, precise configuration of analog inputs and differential restraint parameters is critical to prevent maloperation during external faults or transformer energization.
Integration Guidelines
- Vector Group and Ratio Matching: Configure the internal amplitude and phase angle compensation matrices accurately within PCM600 to match the transformer’s primary/secondary vector group and CT ratios.
- Inrush Restraint: Tune the second harmonic blocking settings based on transformer core characteristics and magnetization current data to avoid tripping during initial energization.
- Software Version Control: Ensure that the PCM600 tool suite version matches or supports the specific firmware revision level embedded on the 1MRK004816-CE module before attempting parameter configuration uploads.
Frequently Asked Questions
Q: Can the RET670 handle multi-winding power transformers?
A: Yes, depending on the hardware order code and software option configuration, the RET670 supports complex multi-winding transformer setups with multiple restrained differential zones.
Q: What software tool is required to configure and monitor this IED?
A: ABB PCM600 (Protection and Control Manager) is required for setting configurations, analyzing disturbance records, and managing IEC 61850 communication configurations.
