The Multilin™ 489 Generator Protection System is a member of the SR Series of relays that provides protection, control, and advanced communications in an industry-leading drawout configuration.

Designed for small to medium sized generators, the 489 offers advanced protection features, including generator stator differential protection. 489 www.cniacs.com also includes detailed diagnostic information to reduce troubleshooting time.

Key Benefits

– Comprehensive, safe protection for small and medium-sized generators

– Easy-to-use generator protection system supported by an industry-leading suite of software tools.

– Advanced protection and monitoring features, including stator and bearing thermal protection using RTDs and vibration monitoring using analogue inputs

– Globally recognised as a member of the most prestigious relay protection product family on the market

– Drawer construction to minimise downtime and facilitate removal/installation during routine maintenance 489

– Large, user-friendly front panel interface for real-time power monitoring and setpoint access, with a display that is easy to read in direct sunlight

– Enhanced generator troubleshooting capabilities through the use of IRIG-B time-synchronised event logging, waveform capture and data logger

– Simplifies setpoint verification testing with built-in waveform simulation capabilities

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

– Can be used in most extreme locations by offering harsh chemical environment options

Applications

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

– Primary or backup protection in cogeneration applications

Protection and control

The 489 generator protection system provides comprehensive protection, metering and monitoring functions,

The 489 generator protection system provides comprehensive protection, metering and monitoring functions for small and medium-sized synchronous or induction generators operating at 25. 50 or 60 Hz.

The 489 is ideal for primary or standby generator protection as well as cogeneration applications.