ABB Motor protection and control REM620 ANSI Numerical Relay
ABB MOTOR PROTECTION AND CONTROL REM620 ANSI NUMERICAL RELAY : RELIABILITY, SECURITY, AND DEPENDABILITY WITH RELION
REM620 ANSI Numerical Relay is a dedicated motor relay perfectly aligned for the protection, control, measurement and supervision of asynchronous motors in manufacturing and process industry.
REM620 is a member of ABB’s Relion product family and a part of its 620 series products. The 620 series relays are characterized by flexibility and performance for demanding utility distribution and industrial applications. Engineered from the ground up, the 620 series has been designed to unleash the full potential of the IEC 61850 standard for communication and interoperability between substation automation devices.
Scope
Motor protection for synchronous and asynchronous motors and their drives in manufacturing and process industry
REM620 ANSI Numerical Relay benefits
- Maximized capital by keeping assets working longer with designs that require less equipment and space
- Enhanced safety by reducing hazards with safety-conscious designs
- Increased reliability by maintaining vital operations with steady, high-quality power every minute of every day
- Reduced operating costs with effective energy management and maintenance strategies
- More flexible system upgrades without rewiring or changing components
- Ease of integration with non-proprietary IEC 61850 communications
Product features
- Drawout design
- Motor differential protection
- Up to 14 RTD inputs
- Arc flash detection (AFD)
- Ring-lug terminals for all inputs and outputs
- Programmable push buttons
Motor protection and control:?
Motor protection is used to prevent damage to the electrical motor, such as internal faults in the motor. Also external conditions when connecting to the power grid or during use have to be detected and abnormal conditions must ?be prevented. Additionally, the protection relay prevents the disturbance to spread back into the grid.
Motor protection schemes have several protection functions to consider:
- Motor horsepower rating and type
- Supply characteristics such as voltage, phases, method of grounding, and available short-circuit current
- Vibration, torque, and other mechanical limits
- Nature of the process
- Environment of motor, associated switching device
- Hot and cold permissible locked-rotor time and permissible accelerating time
- Time versus current curve when starting the motor
- Frequency of starting
The protection relays provide main protection for synchronous and asynchronous motors. They can be used for circuit-breaker and contactor-controlled motors in a variety of drive applications, such as, motor drives for pumps, fans, compressors, mills and crushers.
Scope
- Motor protection and control for a variety of drives
Product benefits
- Prevent damage to electrical motors
- Prevents disturbance to spread back into the grid
Product features
- Application-specific standard configuration resulting in shorter relay setup and commissioning time
- Pre-configured solutions for utility distribution and industrial application
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