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 489 Generator Management Relay | The 489 Generator Management Relay provides economical protection, metering, and monitoring functions. It can be used as primary or backup protection on synchronous or induction generators of 25, 50, or 60 Hz. It may be applied in primary, backup and co-generator applications.
New in SR489:
Embedded Ethernet communication allows the 489 to be connected directly to Ethernet Local/Wide Area Networks (LAN/WAN) supporting baud rates of up to 10Mbps, using Modbus TCP/IP protocol, via an RJ45 port located on the back panel of the relay.
In addition to the benefits introduced with embedded Ethernet communications, take advantage of the following new additional features included with the product:
- Expanded sequence of event recorder - 256 time stamped events
- Expanded Waveform capture - up to 128 cycles
- View Full Details ...
Features and Benefits Unique protection features - Comprehensive generator protection plus including multiple RTD inputs for stator thermal protection
Advanced monitoring functions vibration via DC mA Analog inputs, and stator, bearing and ambient temperature via RTD inputs Best in class man machine interface (MMI) - Large backlit display with 40 characters to view relay information and settings in direct sunlight, full numerical keypad, and setpoint navigation keys Accurate metering during start up and system disturbances - Tracks power system frequency and adjusts sampling rate accordingly Optimize operation - Built in inductive hall effect sensor for speed monitoring Minimize replacement time - Draw-out construction Complete asset monitoring - Temperature, Analog I/O, full metering including demand & energy Improve uptime of auxiliary equipment - Through I/O monitoring Reduce troubleshooting time and maintenance costs -IRIG-B time synchronization, event reports, waveform capture, data logger, learned data Simplify testing - Unique built in simulation features for setpoint verification Cost effective Access to information - Via Modbus RTU and DNP3.0 Level 2 protocols, through standard RS232 & RS485 serial ports, and optional Modbus over TCP/IP through embedded Ethernet Port to connect to 10MB Ethernet local or wide area networks Best in class environmental protection when exposed to chemically corrosive and humid environments with optional harsh environment conformal coating View More Info...
Applications Primary, backup and co-generator applications 25, 50 or 60Hz synchronous or induction generators
Protection and Control Phase differential 100% stator ground Ground directional overcurrent Anti-motoring (reverse power) Loss of field Negative sequence overcurrent High-set overcurrent Voltage restrained phase overcurrent Overexcitation, V/Hz Undervoltage and overvoltage Voltage phase reversal Underfrequency and overfrequency Distance element Stator and bearing overtemperature Stator and bearing vibration monitoring Inadvertent generator energization Breaker failure detection Overspeed VT fuse failure detection Trip coil supervision 4 analog outputs, 4 analog inputs
Monitoring and Metering Metering: A V W var VA Wh varh PF Hz Demand values: A W var VA Event record, last 256 events Oscillography - up to 128 cycles Data Logger (trending) - with EnerVista software
User Interface Front Panel LEDs, full key pad, and backlit LCD display RS232, and RS485 ports - up to 19,200 bps Optional Embedded rear 10BaseT, 10Mbs Ethernet port ModBus™ RTU Protocol Optional ModBus™ over TCP/IP Includes EnerVista software
Inputs and Outputs 12 RTDs, programmable 2 pre-defined & 7 assignable digital inputs 6 output relays 4 analog inputs 4 programmable analog outputs
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