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ABB RELION ® 610 series REF610 feeder protection relay

From: | Author:Wang | Time :2025-07-28 | 238 visit: | 🔊 Click to read aloud ❚❚ | Share:



ABB RELION ®  610 series REF610 feeder protection relay

Product overview

REF610 is ABB Relief ®  The feeder protection relay in the 610 series is designed specifically for feeder protection, measurement, and monitoring in power and industrial distribution systems, and is suitable for the following scenarios:

Protection of incoming and outgoing lines in distribution stations.

Backup protection for motors, transformers, and generators.

Special environments such as ships and offshore platforms.

Its core features include:

Modular design: Adopting a plug-in structure, it facilitates the debugging of switchgear and quick replacement of relays.

Multi protocol support: Compatible with communication protocols such as IEC 61850, IEC 60870-5-103, DNP3, Modbus, Profibus, etc., to meet the integration requirements of different automation systems.

Function integration: integrating protection, measurement, and monitoring, supporting extended functions such as arc protection and automatic reclosing.

Core functions

Protection function

Specific functional categories and key parameters

Three stage overcurrent protection (low setting value I>, high setting value I>>, instantaneous I>>>) starting value: 0.30-35.0 × In, time characteristics support definite time and inverse time (IEC 60255-3, IEEE C37.112)

Grounding fault protection two-stage non directional grounding fault (low setting value I ₀>, high setting value I ₀>>) Start value: 1.0% -800% In, supports timed and inverse time characteristics

Cable thermal overload protection based on current (θ>) Rated current: 0.30-1.50 × In, alarm/trip threshold: 50% -100%, time constant 1-200min

Phase sequence interruption protection detects phase current imbalance (Δ I>). Start value: 10% -100% (based on maximum/minimum phase current difference), with a delay of 1-300s

Circuit breaker failure protection monitoring circuit breaker fault (CBFP) action time: 0.10-60.0s, voltage threshold triggers external fault detection

Arc protection (optional) supports 2 fiber optic sensors to detect arc faults in switchgear, busbars, or cable terminals with an action time of less than 15ms (optical signal), in conjunction with current criteria to improve reliability

Automatic reclosing can be performed up to 3 times, supporting three-phase operation with a reclosing frequency of 0-3 times and a dead time of 0.1-300 seconds. After successful reclosing, the protection will resume with a delay in starting

The locking relay function records the tripping status of the circuit breaker to prevent misoperation and linkage with the tripping circuit, and supports remote reset

Monitoring and measurement functions

Measurement quantities: three-phase current, residual current, phase imbalance, thermal overload level, 1-minute demand, and maximum value.

Fault recording: 4-channel analog signal (current waveform)+8-channel digital signal (protection start/trip signal, etc.), non-volatile storage, supporting post fault analysis.

Event recording: Store 100 events with time stamps, without loss during power outages, for easy traceability of status before and after faults.

Circuit breaker monitoring: Built in counter records the number of operations, evaluates the wear status of the circuit breaker, and supports preventive maintenance plans.

Trip circuit monitoring: Real time monitoring of the on/off status and control voltage of the trip circuit, covering the opening/closing status of the circuit breaker.

Technical Parameter

Basic dimensions and weight

Describe numerical values

Width (frame) 177 mm

Width (shell) 164 mm

Height (frame, 4U) 177 mm

Height (shell) 160 mm

Depth (shell) 149.3 mm

Protective relay weight 3.5 kg

Backup unit weight 1.8 kg


Power parameters

Model Rated voltage range Voltage fluctuation range Static power consumption Operating power consumption

REF610CxxHxxx AC 100/110/120/220/240V; DC 110/125/220/250V AC 85%~110%; DC 80%~120% <9W <13W

REF610CxxLxxx DC 24/48/60V DC 80%~120% <9W <13W

Other DC ripple up to 12% (100Hz); Auxiliary voltage interruption<50ms without resetting; Start to trip response time<350ms --


Current input parameters

Description: 0.2A rated value, 1A rated value, 5A rated value

Rated frequency 50/60Hz ± 5Hz 50/60Hz ± 5Hz 50/60Hz ± 5Hz

Continuous heat tolerance of 0.5A; 1s 20A; 10s 5A continuous 4A; 1s 100A; 10s 25A continuous 20A; 1s 500A; 10s 100A

Dynamic current withstand (half wave value) 50A 250A 1250A

Input impedance<750 m Ω<100 m Ω<20 m Ω

Measurement range: 0-50 × In (phase current); 0~20 × In (grounding current) as above


Digital input parameters

Describe main inputs (DI1, DI2) and extended inputs (DI3~DI5, optional)

Rated voltage REF610CxHxxxx: 110/125/220/250V DC with the same main input or supporting 24/48/60V DC (REF610CxLxxx)

When the action threshold is 110V DC, the maximum voltage is 88V (-20%); Maximum 19.2V (-20%) at 24V DC as above

The working range is rated voltage ± 20% as above

Current consumption 2-18 mA as above

Power consumption<0.9 W/input as above

Output parameters

Signal output (SO1, SO4~SO5)

Describe numerical values

Rated voltage 250V AC/DC

Continuous current carrying 5A

3-second short-term current carrying 15A

0.5s short-term current carrying 30A

Breaking capacity (L/R<40ms) 1A at 48V DC; 0.25 at 110V DC


Core application areas

REF610 as Relief ®  The 610 series feeder protection relay is mainly used in the following scenarios:

Distribution station incoming and outgoing line protection: covering the incoming and outgoing circuits of public and industrial distribution systems, providing core protection such as overcurrent and grounding faults.

Equipment backup protection: As a backup protection for motors, transformers, and generators, it supplements the main protection function and improves system reliability.

Special Environmental Adaptation: Suitable for harsh environments such as ships and offshore platforms, meeting industrial grade requirements for anti vibration and temperature resistance.

Arc protection extension: Combined with optional fiber optic sensors, it enables rapid detection and isolation of arc faults in switchgear, busbars, and cable terminals.


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