Overview
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | ABB REL511 |
| Part Number | 1MRK003492-AL |
| Brand | ABB |
| Product Type | Numerical Distance Protection Relay / Terminal |
| Application | Overhead lines and cables |
| Protection Function | Multi-zone phase and earth-fault distance protection |
| Distance Characteristics | Quadrilateral or mho |
| Fault Locator | Integrated |
| Autoreclose | Multi-shot autoreclose function |
| Synchronization | Check-synchronizing function |
| Trip Functions | Flexible trip logic and trip circuit supervision |
| Communication Ports | RS232 / RS485 |
| Communication Protocols | IEC 60870-5-103, SPA bus |
| Front Interface | Local configuration and monitoring port |
| Engineering Platform | CAT / PCM600 |
| Mounting | Flush, semi-flush, or wall mounting depending on case configuration |
| Front Protection | IP40 when correctly panel-mounted |
| Auxiliary DC Supply | 48 VDC, 110 VDC, 220 VDC options |
| Auxiliary AC Supply | 110 VAC / 230 VAC, 50/60 Hz options |
| AC Power Consumption | <= 15 VA |
| DC Power Consumption | <= 10 W under normal operation |
ABB Distance Protection and Industrial Communication
The REL511 processes voltage and current measurements to determine fault conditions within configured protection zones. It supports phase-fault and earth-fault distance elements with selectable quadrilateral or mho characteristics.
Furthermore, the integrated fault locator calculates fault location from measured electrical quantities. The autoreclose function supports repeated reclosing sequences, while check synchronization supervises the electrical conditions before breaker closing.
For substation integration, the relay provides RS232 and RS485 communication interfaces. It supports IEC 60870-5-103 and SPA bus communication according to the configured hardware and firmware variant.
ABB configuration and monitoring tools can access the relay through its dedicated front interface. Therefore, commissioning personnel can verify protection settings, measurements, events, and operational status locally.
Frequently Asked Questions
Q: Does the supplied data confirm the exact auxiliary supply configuration for 1MRK003492-AL?
A: No. The supplied information lists 48 VDC, 110 VDC, and 220 VDC options, plus 110 VAC and 230 VAC options. The exact variant must be verified against the relay nameplate or ordering documentation.
Q: Can the REL511 provide both phase-fault and earth-fault distance protection?
A: Yes. The supplied specifications identify multi-zone distance protection for both phase and earth faults, with quadrilateral or mho characteristics.
Q: What communication interfaces are identified for this relay?
A: The supplied data identifies RS232 and RS485 interfaces, with IEC 60870-5-103 and SPA bus listed as supported communication protocols.
Field Installation Guidelines
- Verify the complete relay ordering code and nameplate before installation.
- Confirm the auxiliary supply voltage against the installed relay variant.
- Install the relay using the mounting arrangement specified for its case configuration.
- Maintain appropriate separation between instrument wiring, communication cables, and high-voltage conductors.
- Connect protective earth and signal cable shields according to the applicable substation grounding scheme.
- Verify CT and VT secondary wiring before energizing the protection terminal.
- Check CT polarity and VT phase relationships during commissioning.
- Confirm trip circuit wiring and breaker interface connections before functional testing.
- Verify communication addressing, protocol configuration, and serial interface wiring before connecting the station network.
- Apply protection settings only after confirming the system protection coordination requirements.
- Perform secondary injection and functional checks before placing the relay into service.
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Contact: Manski Wong +86 18030205725 manski@cambia.cn
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