Description
The ABB REB500BU (1KHL160006R0001H) is a bay unit within the REB500 distributed busbar protection system. It provides fast, selective protection for substation busbars by locally acquiring and processing current and status signals.
Specifications
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Model: REB500BU
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Part Number: 1KHL160006R0001H
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System Type: REB500 Distributed Busbar Protection
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Function: Bay unit for current signal acquisition and local processing
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Communication Protocols: IEC 61850-8-1 (GOOSE, MMS), PRP (IEC 62439-3)
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Input Signals: CT inputs, isolator status, breaker position
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Synchronization: SNTP or PPS time synchronization
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Operating Voltage: 24–250 V DC (depending on configuration)
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Mounting Format: Rack-mounted or panel-mounted
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Environmental Compliance: IEC 60255 series standards
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Cybersecurity Features: User access control, activity logging, centralized account management
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Dimensions: 100 × 160 × 160 mm
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Weight: 2.4 kg
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Origin: Switzerland
Features
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Decentralized Protection: Each bay unit operates independently for enhanced fault isolation
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Fast Fault Response: Rapid detection and disconnection to maintain system stability
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Differential Protection Algorithms: Ensures accurate fault discrimination across busbar zones
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Breaker Failure Logic: Built-in redundancy for critical fault scenarios
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Check Zone Logic: Verifies fault location before tripping
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IEC 61850 Integration: Supports modern substation automation and interoperability
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Flexible Mounting: Suitable for both rack and panel installations
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Secure Operation: Advanced cybersecurity features for protected access and control
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Scalable Architecture: Easily expandable by adding bay units to existing systems
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