About the 469-P5-HI-A20-E
The 469-P5-HI-A20-E is a Motor Protection Relay was manufactured by GE Grid Solutions (now GE Vernova) to provide monitoring, controlling, and safeguarding for large and medium industrial motors. This relay is the most widely installed of the 469 Motor Management Relays and has a significant installed base in factories throughout the world. The 469-P5-HI-A20-E is a newer version of the 469-P5-HI-A20 and now features an enhanced LCD display for a clearer view in dimly lit industrial environments. For all new 469-P5-HI-A20-E from the factory, a draw-out case is included. However, for all refurbished 469-P5-HI-A20-E sold by our company, our sales team quotes pricing with and without the draw-out case. For many customers, they are purchasing this relay to replace a defective one in their cabinet and are simply reinstalling the relay in a draw-out case that is already wired to the terminals. As a result, there is some cost savings if the relay is purchased without the draw-out case.
Features of the 469-P5-HI-A20-E
All units in the 469 series (unlike in the 369 series) are equipped with metering functions, allowing users to track system variables such as voltage, demand, and frequency. This data can be displayed on the enhanced 40-character LCD or viewed in the EnerVista 469 software program. The RS232 port and RS485 ports can both establish connections between the relay and a computer running the EnerVista software program.
Motor protection features include torque protection, overtemperature protection, stator differential protection, and undervoltage/overvoltage protection. The relay is able to intervene when it detects negative states within the relay, quickly appraising the severity and tripping the system or employing another solution when necessary (rapid motor restarts, etc.) These methods help to reduce overall downtime of the motor system and promote longevity in regard to motor life.
The data logging feature allows the user to select parameters to measure and the interval at which it should be measured. These parameters can be trended and graphed at intervals ranging from one second to one hour. Some of these parameters include motor load, power factor, torque, hottest RTD, and peak apparent power. Data logging allows for greater user insight, increasing knowledge of the overall motor system. In the long-term, this decreases troubleshooting time and enables users to make better adjustments to the setpoint configuration.
