Description
ABB REF615 (Part Code: HBFDACADNAA1BCN1XE) Feeder Protection and Control Relay
1. Product Overview
Full Model: REF615 HBFDACADNAA1BCN1XE (IEC-compliant Feeder IED of Relion®615 Series)
As a member of ABB Relion615 intelligent protection & control product line, it is an integrated protection and control IED dedicated to medium-voltage 10kV~35kV distribution feeders. It applies to urban power grids, industrial substations, auxiliary power outgoing feeders of power plants, grid-connected feeders for distributed PV and marine power distribution systems. It can serve as primary protection or backup protection for distribution transformers and motors. It forms a complete set with UNITROL excitation systems, SACO16D1 alarm annunciators and DCS/SCADA. Complying with IEC61850 and CE certification, it supports protection logics for ring networks, radial networks and distributed generation grid-connected systems.
Brief Code Definition:
H=Complete assembled unit; B=IEC standard specification; F=Feeder application; D=Configuration including non-directional overcurrent, non-directional earth fault protection and on-line circuit breaker monitoring; the suffix NAA1BCN1XE defines power supply, I/O configuration, communication, housing, coating and optional accessories.
2. Hardware & Electrical Specifications
2.1 Power Supply
- Auxiliary supply: Universal wide-range AC80~265V / DC80~265V; customized DC24V low-voltage version available optionally
- Typical power consumption: ≤8W with low-power flame-retardant design
- Dielectric withstand: 2kV AC withstand test for 1 minute between analog/digital terminals and earth; galvanic isolation among internal circuits
2.2 Onboard I/O Configuration
| I/O Type | Specification | Application |
|---|---|---|
| AI Analog Input | 3-phase CT input AC1A/5A, 3-phase PT input AC100V plus residual current & residual voltage inputs | Collect three-phase and zero-sequence electrical values for protection sampling and energy metering |
| DI Digital Input | 16 standard passive binary inputs DC220V/DC24V | Collect circuit breaker position, spring charge status, disconnector status, local/remote selection, device fault and interlock signals |
| DO Relay Output | 8 standard dry contact relays rated AC250V/8A with high-capacity output | Protection tripping, closing output, fault alarm, auto-reclosure action and remote fault signal to DCS |
| RTD (standard for D version) | 6-channel PT100 RTD inputs | Temperature monitoring for cabinet cable terminals and circuit breaker contacts |
2.3 Communication Interfaces (Standard for this model)
- Dual 100Mbps copper Ethernet: IEC61850 MMS/GOOSE/9-2LE, supports PRP/HSR redundant network and IEEE1588 time synchronization
- Isolated RS485: Modbus-RTU, DNP3.0, IEC60870-5-103 for connection with DCS, SACO16D1 alarm annunciator and REG670 protection relays
- Front RS232 debug port: On-site parameter setting, fault oscillography download and logic programming via PCM600 software
- Time synchronization: SNTP, IRIG-B code and PPS hard pulse synchronization
2.3 Dimension & Ambient Parameters
- Dimension: W177mm × H177mm × D201mm (excluding wiring terminals); net weight ≈4.1kg
- Ingress Protection: IP54 front panel with dustproof cover; IP20 inside cabinet
- Ambient range: Operating -25℃~+70℃; Storage -40℃~+70℃; Humidity 5%~95% RH non-condensing
- Standards: IEC60255, DNV marine certification, EMC compliance with IEC61000
3. Core Protection, Control & Measurement Functions
3.1 Full Set of Feeder Protection (D version: non-directional OC + non-directional EF + CB online monitoring)
- Phase Fault Protection: Instantaneous overcurrent, definite time overcurrent, inverse-time overcurrent and thermal overload protection (long inverse-time characteristic)
- Earth Fault Protection: Residual overcurrent, high-impedance earth fault detection and sensitive residual voltage protection for isolated neutral or arc-suppression coil grounded power grid
- Voltage Protection: Overvoltage, undervoltage, PT fuse failure blocking, over/under frequency protection
- Optional Functions: Arc Flash Detection (AFD), non-electrical tripping (gas alarm, overtemperature interlock), auto-reclosure with 1~4 adaptive shots with early/late acceleration logic
- Blocking Logic: CT break protection blocking, trip circuit supervision and breaker failure remote tripping initiation
3.2 Control & Local Operation
Remote opening/closing of circuit breaker, local front-panel manual operation, spring charge supervision, operation counter and customizable five-prevention interlock logic.
Comprehensive electrical measurement: 3-phase U/I/P/Q/PF, active/reactive energy metering, sequence component and harmonic distortion monitoring.
3.3 Fault Recorder, Event Log & Self-diagnosis
- Fault Recorder: Stores full waveform data no less than 10 cycles pre- and post-fault for local or remote download
- Event Log: Min.1000 time-stamped SOE records with millisecond timestamp for protection operations, status changes and alarms
- Periodic Self-test: Full hardware check at power-up plus cyclic online diagnosis; auto fault contact output for abnormal power, CPU or sampling to remote SCADA/DCS
4. Complete System Application Solution
- Feeder Panel Assembly: REF615 + SACO16D1 alarm annunciator + MCB + operating power supply to form secondary feeder cabinet
- Auxiliary Power for Generator Unit: Matched with UNITROL1000 excitation system and REG670 generator protection to build complete auxiliary feeder protection system
- Networking: Dual Ethernet via IEC61850 to substation automation host; RS485 link connected to DCS system
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