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    Motor protection SR469

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    Motor protection SR469Main advantages: 1. Unique protection function - motor comprehensive protection plus voltage based overloading curve, torque measurement and protection, rotor line rod fracture p

    1. Detailed information

    Motor protection SR469

    Main advantages: 1. Unique protection function - motor comprehensive protection plus voltage based overloading curve, torque measurement and protection, rotor line rod fracture protection

    2. The most advanced thermal model features - including several RTD inputs for stator thermal protection

    3. Advanced monitoring function - vibration, bearing temperature

    4. First-class man-machine interface (MMI) - large size backlit display, 40 characters can be shown, to view a relay information under the condition of direct sunlight and setting, all the set values for the numeric keypad and navigation keys

    5. Reduce the maintenance time to the minimum - draw structure

    6. Complete monitoring function - temperature, analog I/O, complete measuring functions including demand and power measurement

    7. Improve the operating time of auxiliary equipment - monitoring through I/O

    8. Shorten troubleshooting time and reduce maintenance cost - incident report, waveform capture, data record

    9. Simplified test - built-in simulation function

    10. Efficient access to information - use the Modbus RTU protocol, using a standard RS232 and RS485 serial interface, and the choice of the Modbus RTU TCP/IP, with 10 MB by embedded Ethernet front-end ports Ethernet LAN or wan connection

    11. The use of synchronised flash-memory technology with technology can be upgraded

    12. Long service life - conformal coating allows the relay to be used in chemical corrosion and wet conditions

    Purpose: protection and management of three-phase medium and large motor and drive equipment, including big inertia, double speed and voltage, reduce the protection and management of motor

    Protection control: 1.RTD and negative sequence current feedback heat model migration

    2. Start monitoring and braking

    3. Mechanical clogging

    4. Acceleration of voltage compensation

    5. Undervoltage and overvoltage

    6. Owe frequency

    7. Actuator differential protection

    8. Thermal overload

    Temperature protection

    10. Phase and grounding flow

    11. Current imbalance

    12. Power elements

    13. Torque protection

    14. Double speed motor double load curve

    15. Voltage lowering start control

    Monitor measurement: 1.A V W var VA PF Hz Wh varh demand

    2. Torque and temperature

    3. Event record

    4. Record and data record (trend)

    5. Statistics and known motor data

    6. Motor start report - new function

    Protective wiring diagram:

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