ABB REL670 High Voltage Line Distance Protection Device

ABB REL670 High Voltage Line Distance Protection Device
I. Basic Overview
Model: REL670
Series: ABB Relion® 670 Series Intelligent Protection IED (formerly ABB, now Hitachi Energy)
Location: Specialized distance protection measurement and control device for transmission lines, used for main backup protection, circuit breaker control, fault recording, and interval measurement and control of 110kV/220kV high-voltage overhead lines, cable lines, shunt capacitor lines, and double-circuit/parallel lines.

Typical Application Scenarios
110kV and 220kV high-voltage substation incoming and outgoing line protection
Power generation station (wind power, photovoltaic) transmission line protection
Double-circuit parallel lines, series compensation lines, cable lines protection
Integrated protection and measurement control for lines + parallel reactors
IEC61850 digital protection interval device eero for smart substations

Core Protection Functions
1. Main Protection: Distance Protection (core)
Supports two impedance protection principles: quadrilateral characteristics and milliohm offset characteristics, up to 4 sections of distance protection
Independent configuration for phase-to-phase distance, grounding distance, with load bypass detection, oscillation locking, and disconnection locking
Fault action speed: half-cycle fast tripping (≤10ms), reliable and sensitive for high-resistance grounding faults
Compatible with single-break, three-break, comprehensive reclosing, supports single-phase adaptive reclosing
2. Backup current and voltage type protection
Four-section directional / non-directional phase overcurrent, negative sequence overcurrent, zero-sequence directional overcurrent
Low-voltage locked overcurrent, inverse-time overcurrent, overload alarm
Low voltage, overvoltage, frequency abnormal protection, disconnection fault detection
3. Companion advanced functions
Breaker failure protection, three-phase once/multiple automatic reclosing, synchronous check / voltage check closing
Remote tripping, longitudinal channel protection (allowing type, blocking type longitudinal distance)
5000 event records with millisecond-level timestamp, fault recording (can record up to 10 seconds)
Secondary circuit CT/PT disconnection monitoring, DC circuit monitoring, device self-check and alarm

Hardware and Electrical Parameters
Installation specification: Standard 4U 19-inch rack-mounted, panel embedded installation, protection IP20
Power supply: DC 88~264V (110V/220V station direct current commonly used); optional AC 100~240V
Power consumption: Normal operation ≤20W, protection action ≤30W
Analog quantity: Up to 12 AC voltage and current sampling, supports conventional CT/PT, electronic transformers
Switch quantity: Multiple input, relay trip output, can be flexibly expanded I/O plug-ins
Operating environment: -25℃ ~ +55℃, resistant to strong electromagnetic interference, compliant with IEC61000 electromagnetic compatibility standards

Communication Capability (standard for smart substations)
Ethernet: IEC 61850 MMS, GOOSE, SV process layer communication
Serial port: IEC 60870-5-103, Modbus, DNP3
Supports remote setting download, protection activation/deactivation, remote fault recording retrieval, program online upgrade, hierarchical permission management ABB REL670 high-voltage line distance protection device
I. Basic Overview
Model: REL670
Series: ABB Relion® 670 series intelligent protection IED (formerly ABB, now Hitachi Energy)
Positioning: Specialized distance protection measurement and control device for 110kV/220kV overhead lines, cable lines, series compensation lines, double-circuit / parallel lines, used for main and backup protection, circuit breaker control, fault recording, interval measurement and control.