Description
The ABB 1MRK008516-BA is part of the RET650 series—a transformer protection relay designed for fast, selective protection, monitoring, and control of two- and three-winding transformers, autotransformers, generator transformer groups, and shunt reactors.
Specifications
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Model: 1MRK008516-BA
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Series: RET650 Relion family
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Protection Functions: Differential, impedance, overcurrent, voltage, frequency, and ground fault protection
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CT Requirements: Low burden; no additional CTs needed
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Frequency Range: Wide operating range for dynamic grid conditions
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Mounting: Panel or rack installation
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Communication: IEC 61850, Modbus, and other protocols
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Event Recording: Built-in disturbance and event recorders
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Origin: Sweden
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Application: Transformer protection in transmission and generation systems
Features
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Advanced Differential Protection: Includes transformer ratio matching and winding compensation
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Comprehensive Monitoring: Real-time diagnostics and secondary system supervision
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Flexible Configuration: Supports various transformer topologies and grounding schemes
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Backup Protection: Includes thermal overload, overexcitation, and multi-step overcurrent protection
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Grid Resilience: Operates reliably during frequency disturbances and generator transitions
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