GE Multilin 869-E-P5-NN-G5-H-N-N-A-L-N Motor Protection Relay

Product Description

GE Multilin 869-E-P5-NN-G5-H-N-N-A-L-N is a microprocessor-based motor protection relay within GE Vernova Multilin 8 Series. It delivers comprehensive protection, control, monitoring and asset management for medium and large induction & synchronous motors. The relay adopts a modular draw-out design, integrated with thermal motor model, broken rotor bar detection, arc flash protection, fault disturbance recording and advanced programmable logic. It supports multiple industrial communication protocols and high-grade cybersecurity functions. Designed for harsh industrial environments, it provides full-lifecycle motor protection and predictive diagnostics, serving as primary motor protection equipment for oil, gas, chemical, power and mining industries.

Specifications

1. Protection Functions: Thermal overload, locked rotor, overcurrent / undercurrent, overvoltage / undervoltage, negative sequence, stator differential, broken rotor bar detection, arc flash protection, ground fault, frequency protection. Voltage-adaptive thermal model with standard / IEC / custom overload curves.
2. Sampling & Measurement: Protection elements processed 8 times per cycle, RMS measurement, frequency tracking 3–72Hz, compatible with VFD-fed motors.
3. Communication Protocols: IEC 61850 Ed2, IEC 62439 PRP, Modbus TCP/RTU, DNP3.0, IEC 60870-5-104.
4. Hardware: Draw-out pluggable construction, field-replaceable power supply, programmable digital inputs / outputs, local HMI.
5. Recording: Event log, disturbance records, motor start/stop statistics, Electrical Signature Analysis (ESA).
6. Cybersecurity: AAA, RBAC, Radius, Syslog, compliant with NERC CIP.
7. Installation: Indoor cabinet mounting, wide industrial operating temperature range.

Applications

• Industries: Oil & gas, chemical, power plant, mining, water treatment, metallurgy
• Equipment: Medium & large induction motors, synchronous motors, VFD-driven motors, high inertia loads (fans, pumps, compressors, mills)
• Use Cases: Primary motor protection, motor start/stop control, motor condition monitoring, fault diagnostics, SCADA/DCS integration, arc flash mitigation, retrofit replacement for legacy SR relays.

Family Models (Multilin 8 Series)

1. 859: Medium & small motor protection relay
2. 869: Medium & large motor protection relay (the model family this part belongs to)
3. 850: Feeder protection relay
4. 889: Generator protection relay
5. 845: Transformer protection relay