Description
Product Parameters
| Parameter | Specification |
|---|---|
| Brand | ABB |
| Model | RED521 1MRK002003-BA |
| Series | Relion 500 |
| Module Type | Feeder protection relay |
| Protection Functions | Overcurrent, earth fault, and related functions |
| Metering and Control | Measurement and bay control functions |
| Communication | Substation automation protocols (per configuration) |
| Mounting | Panel or switchgear installation |
| Operating Environment | Substation and switchgear room conditions |
| Certification | Per ABB / protection standards |
Advantages and Features
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Feeder protection: Provides overcurrent and earth fault protection for distribution feeders.
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Compact Relion 500 platform: Suited to space-constrained switchgear panels.
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Configurable option set: The -BA suffix defines a specific hardware and functional configuration.
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Communication support: Integrates with substation automation systems.
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Metering and diagnostics: Supports operational monitoring and fault analysis.
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Lifecycle support: Backed by ABB’s protection expertise and service network.
Application Cases and Fields
The RED521 1MRK002003-BA is used in applications including:
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Distribution substations: Feeder protection in medium-voltage distribution networks.
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Industrial power systems: Protection of feeders in plant switchgear.
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Power generation: Auxiliary feeder protection in generation facilities.
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Oil and gas: Feeder protection in on-site power distribution.
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Infrastructure: Protection of distribution feeders in transport and buildings.
Comparison with Competing Products
Compared with third-party feeder protection relays, the ABB RED521 1MRK002003-BA offers integration with the Relion platform and ABB substation automation tools, along with established protection algorithms. Competing products may provide similar protection functions but often differ in communication integration, configuration tools, and lifecycle support. For systems standardized on ABB Relion relays, the RED521 1MRK002003-BA minimizes integration risk and preserves consistency in protection settings and testing.
Selection Suggestions
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Verify the option configuration (1MRK002003-BA) matches your required protection and communication functions.
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Confirm compatibility with your substation automation system and protocols.
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Review protection setting and testing procedures for your feeder scheme.
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Consider stocking a spare RED521 1MRK002003-BA for critical installations.
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Consult ABB documentation for configuration and commissioning details.
Precautions
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Install and test only by qualified protection personnel following plant safety procedures.
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Verify CT/VT wiring and polarity before commissioning.
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Confirm relay settings and protection coordination before energizing.
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Use only genuine ABB parts to preserve protection certification and warranty.
ABB 5SHY4045L0001 3BHB018162R0001
ABB 5SHY4045L0001 3BHB018162 3BHE009681R0101 GVC750BE101
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