GE Multilin recently announced the introduction of the new 489-P5-LO-A20-E relay, which is designed for generator protection as part of its Multilin 489 series. The 489-P5-LO-A20-E is suitable for induction or synchronous generators and is capable of operating at 25, 50 or 60 Hz, providing comprehensive generator management and protection capabilities.

The relay is equipped with a 40-character display that enables users to view numerical information, diagnostics, and set values. The front panel includes a numeric keypad, status indicators, numerical up and down keys, RS232 port interfaces, and control and programming keys such as reset, input, Menu, menu Up, and menu Down keys, allowing for control without connecting to an external computer. The backplane includes 12 RTD inputs, six output relays, two RS485 communication ports, and four VT inputs, with the RTD being field programmable. The communication port supports ModbusRTU or DNP 3.0 protocols with rates up to 19200 bps.

SR489-P5-LO-A20-E

In addition, the 489-P5-LO-A20-E’s backplane also includes four isolated 4-20 mA analog inputs and outputs and seven assignable digital inputs. It has seven CT inputs for three-phase output/three-phase neutral line and ground current detection, as well as a separate safety and filter grounding. All inputs meet SWC, C37.990 EMI, RFI anti-interference standards.

The introduction of the new relay further enriches GE Multilin’s product line in power system protection and is expected to play an important role in improving power generation efficiency and reducing the risk of failure. The high performance and reliability of the 489-P5-LO-A20-E relay make it an ideal choice for generator protection in the power industry.

About GE Multilin:
GE Multilin is a business unit of GE focused on providing advanced protection and control solutions for power systems. Its products are widely used in the power, industrial, transportation and renewable energy sectors to improve the reliability and efficiency of power systems. Through continuous technological innovation and product upgrades, GE Multilin continues to promote the development of power system protection technology.