GE 469-P5-HI-A20-E-H motor management relay

Description

GE 469-P5-HI-A20-E-H is a motor management relay produced by General Electric (GE), mainly used for protecting and managing large and medium-sized high-voltage motors and equipment. The following is a detailed analysis of the relay protection:

1、 Product Overview
Brand and Series: This product belongs to the GE Multilin series and is one of GE’s important products in the field of motor protection.
Core functions: Based on microprocessor design, it has multiple functions such as motor protection, management, fault diagnosis, power metering, and remote terminal unit (RTU).
2、 Main functions and characteristics
Motor protection:
Provide various motor protection functions, including overload protection, short circuit protection, overcurrent protection, ground fault protection, etc., to ensure that the motor is in a safe state during operation.
Being able to quickly assess the severity of a negative state upon detection and take corresponding protective measures, such as system tripping or rapid motor restart, to reduce the total downtime of the motor system and extend the lifespan of the motor.
Fault diagnosis:

Real time monitoring and recording of motor operation status can be achieved through functions such as event recording, statistical data, tracking memory, and pre stroke data.
The enhanced display and conformal coating design equipped enables extended service life even in specific hazardous environments such as corrosive agents, hydrogen sulfide, or high humidity environments.
Monitoring and measurement:
Capable of monitoring the operation status of the motor, including real-time monitoring of parameters such as current, voltage, and power factor.
Provide power metering functionality, allowing users to track system variables such as voltage, demand, and frequency, and view these data through an enhanced 40 character LCD display or EnerVista 469 software program.
Communication and data recording:
It may have communication interfaces that support communication with other devices or monitoring systems, enabling remote monitoring and operation.
Provide data recording function, allowing users to select the parameters and measurement intervals to be measured for trend analysis and plotting, improving their understanding of the entire motor system.
Customization and scalability:
General Electric’s products typically have flexible configuration options that can be customized according to customer needs to meet the requirements of different application scenarios.
This relay provides rich interfaces and expansion options, such as programming ports, numeric keyboards, and additional buttons, making it convenient for users to customize and integrate.
3、 Technical specifications

Output Relay: With six output relays, it can be used to start blocks, alarms, or trips.
Power requirements: The rated voltage is 90-300 volts DC or 70-265 volts AC @ 48-62 hertz.
Output signal: The output is a 4-20mA analog signal.
Housing and Installation: Adopting standard GE power management design, using a fixed housing and a withdrawable device, the housing provides mechanical protection. No special ventilation is required during the installation process and can be cleaned with a damp cloth. Suitable for single or two cutting panels.
4、 Operation and Maintenance
Before operation, it is necessary to carefully read and understand the installation and operation instructions in the GE relay manual to ensure safety and protect product life.
The maintenance plan should include clearly defined power on and power off sequences, regular calibration of sensors and actuators, frequent system testing, and procedures for maintaining system safety.
In summary, GE 469-P5-HI-A20-E-H is a powerful and stable motor management relay. Through its comprehensive protection, monitoring, metering, and communication functions, it provides strong guarantees for the safe and reliable operation of large and medium-sized high-voltage motors and equipment.