Description
Note: Many products are not yet listed. Please contact us for more product information. Our supply channels are constantly expanding, and we currently have 20 stable shared supply channels. Please confirm the model, product, price, and all other necessary information with customer service before placing an order. We offer new, refurbished, and used products, and prices are adjusted according to the year of the item you require.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | Phase-segregated two-end line differential IED |
| Mounting Form | 4U draw-out, flush / rack / wall mount |
| Front Panel Rating | IP54 front, IP20 rear terminals |
| Differential Communication | Fiber optic link or galvanic pilot wire |
| Supported Protocols | IEC 61850, GOOSE, Modbus, DNP3, IEC 60870-5-103 |
| Time Sync | IEEE 1588 V2, HSR / PRP redundancy support |
| Measurement Accuracy | ±0.5% for current and voltage readings |
| Auxiliary Supply | 24–250 V DC / 80–250 V AC, configuration dependent |
| Weight | Less than 5 kg |
| Optional Functions | Fault location, overcurrent, earth fault, voltage and frequency protection |
Product Introduction
The ABB RED615 is a dedicated intelligent electronic device built for medium voltage overhead and cable feeders. It runs phase-segregated differential protection between two line ends, with integrated control, metering and supervision for distribution networks. It supports differential links over fiber or pilot wire, and fits radial, looped, meshed networks including sites with distributed generation. Its draw-out housing reduces panel downtime when a spare unit is swapped in.
RED615
RED615
RED615
RED615
Application Scenarios & Field Experience
Many distribution loops and meshed networks struggle with slow, non-selective overcurrent trips during cable faults. Standard overcurrent schemes cannot reliably isolate only the faulted segment, which expands outage zones for downstream loads. This relay solves that by using direct two-end current comparison to trip only the faulted line section.
- Utility distribution substations: 10kV–35kV looped cable feeders, requires selective fault isolation for residential load centers.
- Industrial power plants: On-site medium voltage overhead lines with embedded distributed generation.
- Mining sites: Long cable feeders where pilot wire or fiber paths exist between switchgear bays.
- Petrochemical facilities: In-zone transformer applications on protected line segments.
In my experience, a refinery site had a RED615 failure after a lightning surge damaged the communication port. The site kept a spare RED615 on hand. The maintenance team pulled the failed unit, shorted CTs through the draw-out mechanism, and swapped in the replacement. They reloaded the matching application configuration and verified differential communication before restoring service. Total outage for that feeder stayed under 25 minutes.
Standard Operating Procedure (SOP) for Quality Control
- Visual & Origin Inspection: Verify OEM factory seals, front panel marking, housing serial number, and anti-counterfeit markers. Reject units with scratched terminal blocks or broken draw-out latches.
- Live Rig Testing: Power the unit on a test bench, confirm power-on self-test passes, check binary input/output status, and validate differential communication handshake between two paired RED615 units.
- Firmware Verification: Record the exact firmware revision and application configuration ID. Confirm revision matches the version documented on the unit nameplate.
- ESD-Safe Packaging: Place the relay in static shielding bag, add foam padding, seal in rigid carton, and attach handling labels for electrostatic sensitive equipment.
Frequently Asked Questions (FAQ)
Q1: Can I use RED615 alongside other Relion 615 series IEDs in the same substation automation system? A: Yes, it shares the same IEC 61850 platform with REF615, RET615, and other 615 family devices. Match the GOOSE and network settings carefully. Confirm network switch supports HSR or PRP if you need redundant Ethernet. Q2: What warranty is provided on this ABB RED615? A: We offer a 12-month warranty. Warranty covers hardware failure under normal operating conditions. Damage from lightning, miswiring, or incorrect firmware flashes is excluded. Q3: Is this unit in stock and ready to ship immediately? A: Stock status changes daily. Confirm availability and lead time before you lock in your outage window. Some configured variants require lead time. Q4: Can I load a firmware version newer than the original factory revision? A: Firmware upgrades are possible, but mismatched firmware between paired units breaks differential communication. Always upgrade both ends of the line pair to identical revisions. Q5: Can I hot-swap the while the feeder remains energized? A: Do not hot-swap unless your scheme has CT shorting and redundant protection active. Without CT shorting, you risk open-circuit CT voltage and a system trip. Use the integrated CT shorting mechanism on the draw-out chassis.
