Specifications

G12
GE Limitamp
®
Medium Voltage Motor Control
Components
G
Applications
• Any size of AC induction or synchronous motor
• Stand-alone or component in automated control system
Key Benefits
• Best in class human machine interface (HMI) – view relay
information and settings, full numerical keypad, and setpoint
navigation keys.
• Unique protection features – comprehensive motor protection
with voltage dependant overload curves
• Advanced thermal model – including multiple RTD inputs
for stator thermal protection
• Integrated monitoring functions – vibration, bearing temper-
ature, analog !/O, full metering
• Cost effective and flexible access to information – multiple
communication options and protocols
• Use high speed communications to reduce wiring and
installation costs – exchange inputs and outputs between
relays to achieve relay-to-relay interaction
• Reduce installation space requirements through compact
design – multifunction device that integrates protection
and control functions, programmable pushbuttons and
status LEDS, and communication interfaces
• Maintenance cost savings and simplification – modular
construction, common hardware, reduced stock of spare
parts, plug & play modules
• Application flexibility – multiple I/O options, programmable
logic (FlexLogic
™
), modularity, customize to specific
requirements
• Reduce system event analyzing time and cost – Sequence
of event reports, oscillography, datalogging, IRIG-B time
synchronization
• Embedded IEC 61850 Protocol - no external protocol
converter required
Features
Protection and Control
• Phase and neutral directional overcurrent
• Thermal overload, overvoltage, undervoltage and reverse
phase sequence
• Stator-restrained differential
• VT fuse failure
• Breaker failure
• Stator differential
• Sensitive directional power – reverse and low forward power
• Current unbalance
• Configurable TOC curves with FlexCurves
™
• Thermal model RTD bias function
• Up to 80 digital input and 56 digital outputs
• Transducer I/Os (RTD, dcmA)
Communications
• Networking options – Ethernet-fiber (optional redundancy),
RS485, RS422, G.703, C37.94
• Multiple protocols – IEC 61850, DNP 3.0 Level 2, Modbus
RTU, Modbus TCP/IP, IEC 60870-5-104, Ethernet Global
Data (EGD)
• Direct I/O – exchange of binary data between URs
Monitoring and Metering
• Metering – current, voltage, power, energy, frequency
• Transducer I/O to monitor condition of breaker and motor
auxiliary systems
• Oscillography – 64 samples/cycle, up to 64 records
• Event Recorder – 1024 time tagged events, with 0.5ms
scan of digital inputs
• DataLogger – up to 16 channels with user selectable
sampling rate
• User programmable fault reports
User Interface and Programming
• Fr
ont panel display and keypad for local direct access,
with an RS232 port for local PC access
• User programmable local display, LEDs and pushbuttons
• Customize protection and control functions with
FlexLogic
™
, FlexCurves
™
, and FlexElements
™
• Includes EnerVista LaunchPad – simple relay setup and
programming
• Multi-language support – French, Chinese, Russian options
M60 Motor Protection System