489-P5-HI-A20-E SR489 digital generator protection relay

The 489-P5-HI-A20-E is a model of the SR489 digital generator protection relay manufactured by GE Grid Solutions. The following is a detailed description of the product:

Product Type: SR489-P5-HI-A20-E is a digital relay for generator protection, part of GE Multilin’s 489 series.

Functional features:

Comprehensive generator protection for synchronous and induction generators for 25, 50 and 60 Hz operation.
12 RTD inputs for monitoring and modeling stator and bearing temperatures.
With 9 digital inputs, it can be programmed for a variety of functions such as remote reset, test inputs, etc.
Contains 4 analog inputs for vibration monitoring and more, which can be set to different measurement ranges.
Features 6 output relays and 4 programmable analog outputs for flexible control options.
Supports product upgrades via disk, CD or Internet.
Protection function:

Including differential protection, stator grounding protection, thermal protection, bearing protection, excitation protection and so on.
Provides over current, over voltage, under voltage, over frequency, under frequency and other protection functions.
Communication capability:

The device has two RS485 ports and one RS232 port, and supports multiple communication protocols such as Modbus RTU, Modbus TCP/IP, and DNP 3.0 for easy integration into existing or new monitoring systems.
User interface:

Includes a large vacuum fluorescent display and keyboard, providing an easy-to-read display and user-friendly interface.
Application scenario:

Suitable for protection, control and advanced communication of small to medium-sized generators, as well as for primary or backup protection in cogeneration applications.

SR489-P5-HI-A20-E-H