GE Multilin 489 Generator Protection System

GE Multilin 489  Generator Protection System

DESCRIPTION

The Multilin™ 489 Generator Protection System, a member of the SR family of relays, provides protection,  control and advanced communications in a cost effective industry leading draw-out construction.  Designed for small and medium sized generators, the 489 delivers advanced protection including  generator stator differential protection. The 489 also includes detailed diagnostic information allowing  for reduced troubleshooting time.

Key Benefits

• Complete, secure protection of small to medium sized generators  

• Easy to use generator protection system supported by and industry leading suite of software tools. 

• Advanced protection and monitoring features including the use of RTDs for stator and bearing  thermal protection and Analog Inputs for vibration monitoring  

• Global acceptance as a member of the most renown protection relay product family in the market. 

• Draw-out construction allowing for minimized downtime and easy removal/installation of the 489  during maintenance routines 

• Large, user-friendly front panel interface allowing for real-time power monitoring and setpoint access  with a display that is easily readable in direct sunlight 

• Enhanced generator troubleshooting through the use of IRIG-B time synchronized event records,  waveform capturing, and data loggers 

• Simplified setpoint verification testing using built in waveform simulation functionality  

• Cost effective access to information through industry standard communication hardware (RS232,  RS485, 10BaseT Ethernet) and protocols (Modbus RTU, Modbus TCP/IP, DNP 3.0) 

• Available for use in most extreme harsh locations with the available Harsh Chemical Environment Option

Applications

• Synchronous or induction generators operating at 25Hz, 50Hz or 60Hz 

• Primary or backup protection in cogeneration applications

Protection and Control

• Generator stator differential & 100%  stator ground 

• Loss of excitation & Overexcitation 

• Distance backup 

• Reverse power (anti-motoring) 

• Ground directional overcurrent 

• Inadvertent energization 

• Breaker failure 

• Stator and bearing thermal and vibration  monitoring 

• Negative sequence overcurrent

Communications 

• Networking interfaces - RS232, RS485, 10Mbps  copper Ethernet 

• Multiple protocols - ModBus™ RTU, ModBus™  TCP/IP, DNP 3.0 Level 2

Monitoring & Metering 

• Metering – current, voltage, power, Energy,  frequency, power factor • Demand – current, watts, vars, VA 

• Temperature – 12 RTD inputs 

• Vibration and Speed – 4 analog transducer inputs 

• Oscillography – 12 samples/ cycle up to 128  cycles in length 

• Trending – 8 parameters with up to a 5 second  sample rate

EnerVista Software 

• Document and software archiving toolset to  keep information up to date 

• Ease to use real time monitoring, control, and  data archiving software available 

• EnerVista Integrator providing easy integration  of data in the 489 into new or existing  monitoring and control systems