The GE Multilin 850-EP1NNG1HNNAANGAPFC2ASNBN is a member of the Multilin 8 Series, representing a state-of-the-art platform for the protection, control, and management of feeder systems in utility and industrial environments. This specific configuration is a highly specialized high-end unit designed for high-performance distribution automation. The GE Multilin 850 offers integrated high-speed communications, cyber security features, and advanced diagnostic tools, ensuring the highest level of grid reliability and asset protection.
Technical Specifications and Datasheet
The alphanumeric code for this 850 relay defines its specific hardware and software capabilities:
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Model: 850 (Feeder Protection System)
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CPU (E): Advanced CPU with high-speed processing
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Current/Voltage Inputs (P1): Standard 3-phase current and voltage monitoring
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Ground Current (G1): Standard ground CT input
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Power Supply (H): High Voltage (110-250 V DC / 110-230 V AC)
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Communication (NNA): Standard network architecture with dual-path redundancy
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Analog Outputs/Inputs (A): Integrated analog I/O for transducer interfacing
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Security/Environmental (ASNBN): Includes conformal coating and advanced cyber security protocols
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Display: High-resolution color graphical display for local HMI
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Mounting: Standard 19-inch rack or panel mounting
Application Fields
The 850-EP1NNG1HNNAANGAPFC2ASNBN is typically deployed in smart grid infrastructures, large-scale renewable energy plants (solar and wind farms), and critical industrial power systems. It is engineered to handle complex protection schemes, including high-impedance fault detection and advanced directional overcurrent protection. Its robust design and conformal coating make it suitable for environments exposed to chemical vapors or high humidity, such as pulp and paper mills, refineries, and offshore substations.
Product Instructions
The 850 series relay should be installed by a qualified protection engineer. When mounting the unit, ensure there is adequate ventilation behind the panel to prevent heat buildup. Wiring for the Current Transformers (CTs) must be verified for correct polarity to ensure accurate directional protection. The relay is configured using the EnerVista 8 Series Setup software via the front-panel USB port or the rear Ethernet ports. This module supports IEC 61850 Edition 2, allowing for seamless integration into digital substations. Regular firmware updates are recommended to maintain the latest cyber security defenses and functional enhancements.
Common Questions and Answers
Q: What is the significance of the “ASNBN” suffix in this model? A: This suffix refers to the specific environmental protection (conformal coating) and specialized software/security features selected for this build. It ensures the relay can withstand harsh atmospheric conditions and complies with modern industrial cyber security standards.
Q: Does this relay support redundant communication? A: Yes, the 850 series supports PRP (Parallel Redundancy Protocol) and HSR (High-availability Seamless Redundancy), which ensure that a single network failure does not disrupt the communication between the relay and the SCADA system.
Q: Can I view fault waveforms directly on the relay? A: Absolutely. The high-resolution color display allows technicians to view oscillography and phasor diagrams locally, which is invaluable for rapid troubleshooting during a trip event.
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