GE 469 MOTOR MANAGEMENT RELAY
GE 469 MOTOR MANAGEMENT RELAY 489-P1-LO-A20
The 469 Motor Management Relay is a microprocessor based relay designed for the protection and management of
medium and large horsepower motors and driven equipment. The 469 is equipped with six output relays for trips, alarms,
and start blocks. Motor protection, fault diagnostics, power metering, and RTU functions are integrated into one economical
drawout package. The single-line diagram below illustrates the 469 functionality using ANSI (American National Standards
Institute) device numbers.
Some of the protection highlights are detailed here; a complete list is shown below. Four assignable digital inputs may be
configured for a number of different features including tachometer or generic trip and alarm with a programmable name.
The thermal model incorporates unbalance biasing, RTD feedback, and exponential cooling. In addition to the 15 standard
overload curves, there is a custom curve feature and a curve specifically designed for the starting of high inertia loads,
when the acceleration time exceeds the safe stall time. A second overload curve is provided for two-speed motors. Ground
faults or earth leakage as low as 0.25 A may be detected using the GE Power Management 50:0.025 Ground CT. CT inputs
for phase differential protection are also provided. The 12 RTD inputs provided may be individually field programmed for
different RTD types. Voltage transformer inputs allow for numerous protection features based on voltage and power quantities.
Four 4 to 20 mA analog inputs may be used for tripping and alarming on any transducer input such as vibration, pressure,
flow, etc.
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489-P1-LO-A1
489-P1-LO-A20
489-P1-HI-A1
489-P1-HI-A20
489-P5-LO-A1
489-P5-LO-A20
489-P5-HI-A1
489-P5-HI-A20
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Replacing an electrical equipment unit in a plant is a complex task that requires careful planning and execution to ensure safety and minimize downtime. Here is a general step-by-step guide on how to replace electrical equipment in a plant:
Pre-Planning:
Safety Precautions:
Shutdown Procedures:
Disconnection:
Removal of Existing Equipment:
Installation of New Equipment:
Testing and Commissioning:
Documentation:
Training:
Startup:
Throughout the process, it’s important to work closely with a team that includes electrical engineers, technicians, and maintenance staff. Communication is key to a successful equipment replacement. Additionally, always adhere to local electrical codes and standards to ensure compliance and safety. If the task is beyond the expertise of in-house staff, consider hiring a professional contractor experienced in industrial electrical work.
Obtaining industrial automation programming software typically involves the following steps:
Identify Your Needs:
Research Software Options:
Contact Equipment Manufacturers:
Purchase or Download:
Academic or Evaluation Versions:
Open Source Options:
Licensing:
Training and Support:
Legal and Compliance:
Installation and Setup:
Here are some common ways to obtain industrial automation programming software:
Remember to keep your software updated to benefit from the latest features and security patches. Also, ensure that you have the necessary backup and recovery procedures in place to protect your programming work.
All new products and surplus products of the industrial intelligence industry, as well as the discontinued products of the original manufacturers. We are not an authorized distributor or representative of any of the above manufacturers (except for brand authorization). The trademarks, brand names and brands appearing in this agreement are the property of their respective manufacturers.
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