Overview
The ABB RK638006-AA Diode Unit, also known as the RLOE 100, is a specialized component engineered for high-voltage switchgear applications. Designed to work seamlessly with ABB’s REB103 busbar protection relay, this diode unit plays a critical role in ensuring directional current control and fault isolation. Moreover, its rugged build and modular design make it ideal for demanding industrial and utility environments.
Manufactured in Sweden, the RK638006-AA is part of ABB’s legacy protection system portfolio. It supports high-speed fault response and integrates easily into existing substation architectures. In addition, its compact form factor and IP54-rated enclosure allow for reliable operation in harsh conditions, including outdoor installations and vibration-prone environments.
Technical Data
| Parameter | Specification |
|---|---|
| ABB Type Designation | RLOE 100 |
| Product ID | RK638006-AA |
| Operating Temperature | -25°C to +70°C |
| Dimensions | 12.8 cm x 18.2 cm x 10.6 cm |
| Weight | 1.0 kg |
Typical Applications
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REB103 Busbar Protection Systems: The RK638006-AA is specifically designed to operate with ABB’s REB103 relay for high-speed fault isolation.
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Medium and High Voltage Switchgear: Suitable for GIS and AIS switchgear systems in substations and industrial power networks.
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Breaker and Isolator Control Modules: Used to manage motorized breaker operations and provide directional current control.
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SCADA-Integrated Substations: Supports integration with supervisory control systems for real-time monitoring and diagnostics.
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Harsh Industrial Environments: With IP54 protection and IEC 60068-2 compliance, it withstands dust, moisture, vibration, and shock.
For instance, utilities in Europe and Asia have deployed RK638006-AA units in 220 kV and 500 kV substations to enhance fault response and reduce downtime. Additionally, its modular hot-swap design allows for quick replacement during maintenance without interrupting system operations.
FAQ
Q: What is the primary function of the RK638006-AA Diode Unit?
A: It ensures directional current control and fault isolation in REB103 busbar protection systems.
Q: Can this unit be used in outdoor substations?
A: Yes, its IP54 rating and wide temperature range make it suitable for outdoor and industrial environments.
Q: Is the RK638006-AA compatible with SCADA systems?
A: It supports integration with SCADA through its relay interface and control logic.
Q: What voltage levels does it support?
A: It operates at configurable DC voltages—typically 24V, 110V, or 220V—based on system requirements.
Q: Is it still available for purchase?
A: Yes, the RK638006-AA is available as a new product and supported by ABB’s legacy system services.
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