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 openings – nr. 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