Description
The ABB 1MRB150082M0002 REB500-CU03-V76 is a component of the ABB REB500 distributed busbar protection system, designed for protection of electrical substations and switchgear busbar arrangements. REB500 uses a distributed architecture in which bay units interface with individual switchgear bays while the central unit performs the associated busbar protection functions.
The REB500 system is designed for low-impedance busbar protection and supports protection functions such as stub and T-zone protection. Its architecture uses current measurements from the individual bays to detect busbar faults and coordinate selective protection actions.
The REB500-CU03-V76 designation should be matched exactly when sourcing a replacement. The complete ordering number 1MRB150082M0002, hardware version, system configuration, connected bay units, and auxiliary equipment should be checked against the existing installation before replacement.
🔑 Product Keywords: ABB 1MRB150082M0002, REB500-CU03-V76, REB500, Distributed Busbar Protection, Busbar Protection Relay, ABB Protection Relay, Substation Protection, Switchgear Protection, Busbar Protection System
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1MRB150082M0002
📋 Product Datasheet
| Parameter | Specification |
|---|---|
| Brand | ABB |
| Model | 1MRB150082M0002 |
| Type Code | REB500-CU03-V76 |
| Product Series | REB500 |
| Product Type | Distributed Busbar Protection Unit |
| Application | Electrical substation / busbar protection |
| Protection System | Low-impedance distributed busbar protection |
| Architecture | Central unit with distributed bay units |
| System Interface | Protection and switchgear bay interface |
| Country of Origin | Switzerland* |
| Condition | Verify actual item condition |
*Country of origin shown in available marketplace information for this specific part number; verify against the physical product documentation when required.
⚙️ Application
The REB500 platform is intended for busbar protection in substations and switchgear installations. Its distributed architecture places bay units close to the individual switchgear bays, while the central unit is normally installed separately in the relay/control equipment area.
Typical applications include:
- Substation busbar protection
- Medium- and high-voltage switchgear protection
- Distributed bay protection
- Stub and T-zone protection
- Busbar fault detection and selective tripping
- Protection-system retrofit and maintenance
The REB500 system uses stabilized differential-current and directional-current comparison principles and is designed to maintain stability during through-fault conditions, including situations involving CT saturation.
⚠️ Replacement Note: Confirm the complete 1MRB150082M0002 / REB500-CU03-V76 code before installation. REB500 systems contain multiple unit types and configuration-specific components, so a visually similar REB500 module should not be treated as a direct substitute without checking the system configuration.
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