With 12 switchgear control elements, a fully configurable single-line diagram on a large color graphical display, a 36-alarm integrated annunciator panel, and up to 20 virtual pushbuttons, the 8 Series eliminates the need for external controls, switches, and annunciation on the panel, reducing equipment and engineering costs.
GE Multilin 8 Series | Integrated Protection, Control & Monitoring Platform
Product Description
With 12 switchgear control elements, a fully configurable single-line diagram on a large color graphical display, a 36-alarm integrated annunciator panel, and up to 20 virtual pushbuttons, the 8 Series eliminates the need for external controls, switches, and annunciation on the panel, reducing equipment and engineering costs.
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Key Benefits
Same Look and Feel: Unified protection, control, and monitoring experience across feeders, motors, transformers, and generators
One Box Solution: Advanced logic and configuration flexibility for comprehensive primary or backup protection, control, and monitoring
Configurable SLD: User-configurable single-line diagram with color display for local control, system status, and metering
Advanced Diagnostics: High-end motor, transformer, and generator diagnostics with fault and disturbance recording
Integrated Arc Flash Protection: Light sensors supervised by overcurrent to reduce incident energy and equipment damage
High-End Cyber Security: AAA, RADIUS, RBAC, and Syslog enabling NERC CIP compliance
Draw-Out Design: Simplifies testing, commissioning, and maintenance, increasing uptime
Optional Wi-Fi Connectivity: Minimizes system configuration and provides safe relay programming and diagnostic retrieval
Environmental Diagnostics: Real-time visibility on changes in environmental parameters
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Innovative Technology & Design
Advanced Communications: IEC 61850 Ed2, IEC 62439/PRP, Modbus RTU & TCP/IP, DNP3.0, IEC 60870-5-104, IEC 60870-5-103
Single Setup & Configuration: Across the entire platform
Field Swappable Power Supply: Extends usable life and minimizes replacement costs
Enhanced Draw-Out Construction: Simplifies device fleet management
Elimination of Electrolytic Capacitors: Enhances long-term reliability.
Fast Protection Pass: Runs every 2 ms for faster response on current, voltage, power, and frequency elements
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Exceptional Quality & Reliability
IPC A-610-E Class 3 Manufacturing: Drives to the highest level of reliability standards
100% Environmental Stress Screening: Full functional testing prior to shipping
IP54 Rated (Front): Suitable for harsh industrial environments
Harsh Environment Coating: Standard on all printed circuit boards
Uncompromising Service & Support
10-Year Worldwide Warranty: Designed, tested, and assembled by GE Vernova
EnerVista Software Suite: Complete setup, monitoring, and maintenance tools
8 Series Platform Overview
| 850 | Feeder Protection System | Advanced protection, control & diagnostics for distribution feeders; 2 CB control and 4-shot auto reclose |
850P | Multi-feeder Protection | Advanced multi-feeder solution; draw-out construction with field swappable power supply |
| 845 | Transformer Protection System | Winding hot spots, internal short circuit, high oil temperature; fault analysis tools |
| 869 | Motor Management System | Stator winding overheating & turn-to-turn fault detection, broken rotor bar protection, bearing temperature monitoring; Motor Health Report |
| 889 | Generator Protection System | Advanced unit differential protection, generator monitoring & diagnostics, 100% stator ground protection |
ANSI Protection Functions Comparison
| 12/14 | Over Speed / Under Speed Protection | — | — | — | — | — | ● |
| 21YN | Neutral Admittance | — | — | — | — | — | ● |
| 24 | Volts per Hertz | — | — | — | — | ● | ● |
| 25 | Synchrocheck | — | — | — | — | — | ● |
| 27P | Phase Undervoltage | ● | ● | ● | — | ● | ● |
| 27Q | UV Reactive Power | — | — | — | — | — | ● |
| 27TN | Third Harmonic Neutral Undervoltage | — | — | — | — | — | ● |
| 27TT | Timed Undervoltage Protection | — | — | — | — | ● | ● |
| 27X | Auxiliary Undervoltage | ● | ● | ● | — | ● | ● |
| 32 | Directional Power | ● | ● | ● | — | ● | ● |
| 32N | Wattmetric Ground Fault | ● | ● | ● | — | — | — |
| 37 | Undercurrent | ● | ● | ● | ● | — | — |
| 37P | Underpower | — | — | — | ● | — | — |
| 38 | Bearing RTD Temperature | — | — | — | ● | — | — |
| 39 | Bearing Vibration (dcmA) | — | — | — | ● | — | — |
| 40 | Loss of Excitation | — | — | — | — | — | ● |
| 40Q | Reactive Power | — | — | — | — | — | ● |
| 46 | Current Unbalance | ● | ● | ● | ● | — | ● |
| 47 | Phase Reversal | ● | ● | ● | ● | — | ● |
| 49 | Thermal Overload | ● | ● | ● | ● | ● | — |
| 49S | Stator RTD Temperature | — | — | — | ● | — | — |
| 49TOL | Thermal Overload | — | — | — | ● | — | — |
| 50/27 | Inadvertent Energization | — | — | — | — | — | ● |
| 50/87 | Instantaneous Differential Overcurrent | — | — | — | — | — | ● |
| 50BF | Breaker Failure | ● | ● | ● | — | — | ● |
| 50G | Ground Instantaneous Overcurrent | ● | ● | ● | ● | ● | ● |
| 50SG | Sensitive Ground Instantaneous Overcurrent | ● | ● | ● | ● | — | ● |
| 50LR | Mechanical Jam | — | — | — | ● | — | — |
| 50N | Neutral Instantaneous Overcurrent | ● | ● | ● | ● | ● | ● |
| 50P | Phase Instantaneous Overcurrent | ● | ● | ● | ● | ● | ● |
| 50_2 | Negative Sequence Instantaneous Overcurrent | — | — | — | — | — | ● |
| 51G | Ground Time Overcurrent | ● | ● | ● | ● | ● | ● |
| 51SG | Sensitive Ground Time Overcurrent | ● | ● | ● | — | — | — |
| 51N | Neutral Time Overcurrent | — | — | — | — | ● | ● |
| 51P | Phase Time Overcurrent | ● | ● | ● | ● | ● | ● |
| 51V | Voltage Restrained Time Overcurrent | — | — | — | — | — | ● |
| 51_2 | Negative Sequence Time Overcurrent | — | — | — | — | — | ● |
| 52 | AC Circuit Breaker | — | — | — | ● | — | — |
| 55 | Power Factor | — | — | — | ● | — | — |
| 59N | Neutral Overvoltage | — | — | — | — | ● | ● |
| 59P | Phase Overvoltage | ● | ● | ● | — | ● | ● |
| 59X | Auxiliary Overvoltage | — | — | — | — | ● | ● |
| 59_2 | Negative Sequence Overvoltage | — | — | — | — | — | ● |
| 64TN | 100% Stator Ground using 3rd Harmonic Voltage Differential | — | — | — | — | — | ● |
| 66 | Maximum Starting Rate | — | — | — | ● | — | — |
| 67G | Ground Directional Element | — | — | — | — | ● | ● |
| 67SG | Sensitive Ground Directional Element | — | — | — | — | — | ● |
| 67N | Neutral Directional Element | — | — | — | — | — | ● |
| 67P | Phase Directional Element | — | — | — | — | — | ● |
| 67_2 | Negative Sequence Directional Element | — | — | — | — | — | ● |
| 76 | Excitation Current Protection (dcmA) | — | — | — | — | — | ● |
| 78 | Out-of-Step Protection | — | — | — | — | — | ● |
| 79 | Automatic Recloser | ● | ● | ● | — | — | — |
| 81O | Overfrequency | — | — | — | — | — | ● |
| 81U | Underfrequency | — | — | — | — | — | ● |
| 81R | Frequency Rate of Change | — | — | — | — | — | ● |
| 86 | Start Inhibit | — | — | — | ● | — | — |
| 87G | Restricted Ground Fault (RGF) | — | — | — | — | ● | ● |
| 87GD | Restricted Ground Fault (RGF) | — | — | — | — | — | ● |
| 87O | Overall Unit (Gen-Xfrm) Protection | — | — | — | — | — | ● |
| 87S | Stator Differential | — | — | — | — | — | ● |
| 87T | Transformer Differential | — | — | — | — | ● | — |
| AFP | Arc Flash Protection | ● | ● | ● | — | — | — |
| CLP | Cold Load Pickup | — | — | — | — | — | ● |
| 11/12 | Broken Conductor | — | — | — | — | — | ● |
| MTM | Automatic Bus Transfer Scheme | — | — | — | — | — | ● |
| MCB | Manual Close Blocking | — | — | — | — | — | ● |
| SOTF | Switch on to Fault | ● | ● | ● | — | ● | ● |
| TGFD | Transient Ground Fault Detection | — | — | — | — | — | ● |
| VTFF | Voltage Transformer Fuse Failure | ● | ● | ● | — | ● | ● |
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CHS Automation (K&J) has been deeply involved in the field of industrial automation for many years, focusing on providing highly reliable industrial control core components and system support for shipbuilding, shipping, and marine engineering.