T-PMR
Protection and measurement relay
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
- 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] |