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ABB REG615 Interconnection Protection Relay
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- Part Number: REG615
- Brand: ABB
- Type: Transformer Protection Relay
- Dimensions: 116x2.5x2cm
- Country of Origin: USA
- Barcode: 8537101190
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Additional Specifications
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Product Description
The ABB REG615, also cataloged as the REG615 Generator and Distributed Energy Access Protection Device, operates as a dedicated hardware component for the protection, control, measurement, and monitoring of generators and interconnection points within public and industrial power distribution networks.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | REG615 |
| Brand | ABB |
| Origin | Finland |
| Weight | 3.50 kg nominal reference mass |
| Dimensions | Standard 615 series flush-mount panel chassis |
| Operating Temp | Standard substation environment thermal boundaries |
| Power Consumption | Allocated via modular auxiliary AC/DC substation power rails |
| Core Application | Small/medium diesel, gas, hydro, solar, and wind generation units |
| Interface Options | Traditional CT/PT analog inputs or low-power instrument sensors |
| Mechanical Format | Withdrawable plug-in design for rapid installation and testing |
| Local HMI | Large LCD display with editable single-line graphs |
| Configuration Matrix | 3 standard configurations (2 for generators, 1 for interconnection) |
| Core Protection | 100% stator ground fault, generator differential, out-of-step protection |
| Redundancy Protocols | Parallel Redundancy Protocol (PRP) and High Availability Seamless Redundancy (HSR) |
| Communication Protocols | IEC 61850 Editions 1/2, IEC 61850-9-2 LE, Modbus, DNP3, and IEC 60870-5-103 |
| Optional Protocol Expansion | Profibus DPV1 via external SPA-ZC 302 adapter |
Industrial Control and Drives Characteristics
The REG615 architecture processes multi-channel analog current and voltage waveforms designed to track system variables across backplane bus communication velocity Licences. By executing low-latency passive and active islanded grid detection algorithms, the relay monitors distributed generation resources to determine grid-disconnection intervals without introducing data conversion loop lag.
The onboard communication processors distribute critical safety parameters and horizontal GOOSE messaging blocks over Profinet / EtherNet/IP deterministic networks, native IEC 61850-9-2 LE process buses, and IEEE 1588 v2 high-precision time paths to maintain continuous connection tracking across the local generation station. The physical layout accommodates independent I/O density scaling routines by mapping optional optical arc flash protection sensors alongside high-speed solid-state trip outputs. This parallel execution framework ensures immediate islanding and fault isolation while preserving complete software configuration firmware flash compatibility across the ABB Relion 615 series platform tools.
Frequently Asked Questions
Q: How does the REG615 accomplish 100% stator ground fault protection for the generator?
A: The relay uses numerical algorithms that combine conventional fundamental-frequency zero-sequence voltage tracking with third-harmonic neutral undervoltage or differential measurements. This multi-zone calculation ensures the neutral grounding boundary is monitored even when the generator is operating at zero terminal voltage during startup.
Q: What mechanism enables the REG615 to execute islanded grid detection for distributed energy resources?
A: The internal processing loops run specialized vector shift and rate-of-change-of-frequency (ROCOF) active protection elements. These parameters continuously track voltage and frequency variations at the interconnection point, instantly isolating the distributed generation source when grid synchronization is broken.
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