Specifications

G3
GE Limitamp
®
Medium Voltage Motor Control
Components
G
Applications
• Medium size motors
• “Down Hole” pump applications
• Suitable for applications involving Variable Frequency Drives
Key Benefits
• Unique and advanced protection features – Back-spin
detection, advanced thermal model, most advanced
thermal model including multiple RTD inputs for stator
thermal protection
• Complete asset monitoring – stator, bearing & ambient
temperature, optional full metering including demand &
energy
• Improve uptime of auxiliary equipment – through I/O
monitoring
• Reduce troubleshooting time and maintenance costs –
event reports, waveform capture, data logger
• Simplify testing – built-in simulation features
• Multiple communication protocols – Modbus RTU, Profibus,
Device Net
• Cost effective access information – through standard
RS232 & RS485 serial ports, and optional embedded
Ethernet and Profibus Ports
• Multiple communication ports – RS232, RS485, and Fiber
Optic and Ethernet
• Follow technology evolution – flash memory for product
field upgrade
• Long lasting life – when exposed to chemically corrosive
and humid environments with optional conformal coating
• Suitable for hazardous locations – Underwriters
Laboratory certification for Class 1 Division 2 applications
• Installation flexibility – remote display and remote RTD option
• Safe and reliable motor re-start on “Down Hole” pump
applications – unique back spin detection feature detects
flow reversal on a pump motor, enabling timely and safe
motor restarting
Features
Protection and Control
• Full metering: A V W var VA PF Hz Wh varh demand
• Fault diagnosis
• Event record
• Statistical information & learned motor data
• Voltage/frequency/power display (M)
• 4 analog outputs (M)
• Oscillography & Data Logger
Monitoring and Metering
• Thermal model biased with RTD and negative sequence
current feedback
• Phase short circuit
• Undervoltage, overvoltage
• Underfrequency
• Thermal overload
• Undercurrent for load loss
• Locked rotor / mechanical jam
• Variable lockout time
• Current unbalance
• Ground fault O/C
• Overtemperature 12 RTDs (R)
• Starts/hour, time between starts
• Phase Reversal (M)
User Interface
• Fr
ont Panel 10 LEDs, key pad, and backlit LCD display
• RS232, and RS485 ports – up to 19,200 bps
• Optional embedded Ethernet port
• Optional Profibus Protocol via dedicated port
• ModBus
™
RTU Protocol
• ModBus
™
over TCP/IP
• Optional Device Net Protocol
• Includes EnerVista software
Multilin 369 Motor Protection System