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T-PMR

Protection and measurement relay
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The T-PMR is a directional fault detector with advanced measuring functionalities, network automation, analysis and monitoring of the electrical service quality, recording of fault transients and remote control. T-PMR complies with the latest E-distribuzione global standards and it is intended to be installed in secondary MV substations in order to protect and manage all the assets in a more efficient way.

Benefits

Thanks to its features T-PMR contributes to drastically reduce the outage time of the MV distribution network.

Compliant with IEC61850 Ed.2 standard.

Features

Tesmec T-PMR Protection and Measurement Relay
  • 12 integrated protection functions, additional “built-in control” functions and graphical programming (IEC61131-3)
  • Detection of phase-phase and phase-ground phase failures and no voltage on the line
  • Advanced measurement, monitoring and control capabilities

Technical Specifications

GENERAL RATINGS

Capacitive sensor operating voltage MV 0,4 or 6÷24 kV
Operating frequency 50 - 60 Hz ± 5%

PROTECTION FUNCTIONS (ANSI/IEEE)

50/67 (Overcurrent)
51N (earth overcurrent)
67N (phase/earth directional overcurrent)
32P (directional/reverese power)
27/27DC (undervoltage)
50BF (breaker failure)
59/59N (maximum voltage)
EAC 81 (frequency)
79 (auto reclosing CA)
25 (synchro-check device)

VOLTAGE ANALOG INPUT (50Hz / 60Hz)

Transformation Ratio (linear sensor) 10 kV : 1 V [RMS]
Transformation Ratio (capacitive sensor) Calibrated via SW for 0,4 o 6÷24 kV ± 50%

CURRENT ANALOG INPUT (50Hz / 60Hz)

Transformation ratio (linear sensor) 2.5 kA : 1 V [RMS]
Transformation ratio (Rogowski sensor) mV [RMS] 1.0 kA : 100 mV / 1.0 kA : 31
Primary full-scale 8.8 kA [RMS]