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TF-RP21

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Protections

  • 2 overvoltage levels VM1 and VM2

  • 2 undervoltage levels Vm1 and Vm2

  • 2 current step levels with di/dt dependance IG1 and IG2

  • 2 impedance monitoring levels with di/dt dependance R1 and R2

  • 2 max overhead line temperature TM>

  • 2 overvoltage with 100 Hz component levels V1001 and V1002

  • 2 overcurrent forward/reverse/bidirectional programmable levels IM1>, IM2> ,IM3>,IM4>

  • High speed circuit breaker diagnostic relay for : nr. of mechanical
    procedures
    nr. of electric openingsnr. of electric interruptions

  • 1 thermal image protection of the cable/line levels ITM1

  • 2 switchboard or cable earth fault protection levels (64)

  • 1 Maximum I2t

  • 2 Maximum current gradient G

  • 2 Maximum current variation


Measures

  • Overhead line current (with sign)

  • Earth current

  • Overhead line voltage

  • Maximum voltage

  • Power

  • Minimum voltage

  • Environment temperature

  • Maximum current

  • Overhead line temperature (computed)

  • Maximum power


Other functions


  • Autodiagnostic

  • Automatic programmable line test

  • Trip recording (last 10) with complete cause of tripping and values of the inputs at trip time

  • Time sync through GPS signal or through NTP protocol

  • Oscillographic recording and display

  • Timing functions

  • Modbus and Ethernet interface

  • Programmable IEC 61131-3 PLC