EPQS
EPQS
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The EPQS meter is a multifunction device for measurement of electric energy in four-quadrants and is approved in accordance with IEC 62053-11, IEC 62053-22, IEC 62053-21, IEC 62053-23. Meter operates in 3- or 4-wire networks and can be direct connection (accuracy class 1) or CT or CT/VT connection (accuracy class 0.2s or 0.5s). EPQS meter can be easily incorporated into AMR systems. It has power quality monitoring capabilities and is designed to meet the most ultimate demands from utilities and other clients.
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| System | Three-phase 4-wire or 3-wire |
| Accuracy class: - for active energy - for reactive energy |
0.2s, 0.5s (CT connection), 1.0 (direct connection) 2.0 |
| Reference voltage, Un: - 4 wire networks - Multi range - 3 wire networks |
3x57,7/100; 3x63,5/110; 3x69,2/120; 3x120/208; 3x127/220; 3x220/380 3x230/400 3x57,7 ...230/100 ...400; 3x100; 3x110; 3x220; 3x230; 3x120 |
| Reference (maximum) current, Ib (Imax) - Direct connection, A - CT or CT/VT connection, A |
10(100) 5(6); 5(10); 1(2); 1(6) |
| Current threshold | 0,1% Ib (if direct connection - 0,4% In) |
| Reference Frequency, Hz | 50 or 60 |
| Meter constant, imp/kWh (imp/kVArh) | <130000 |
| Power consumption: - In voltage circuit - In current circuit |
< 0,9 W; < 2,5 VA < 0,3 VA (< 0,05 CT or CT/VT connection) |
| Temperature ranges: - Meter operating - Meter storage |
-40°C to +60°C -50°C to +70°C |
| Accuracy of internal real-time clock | < 0,5 s/24 h (T = 23 °C) |
| Backup power supply | Li-ion battery or Super Cap (rechargeable) |
| Operation duration using only backupį: - Li-ion battery - Super Cap |
> 16 years > 7 days |
| Case | UV stabilized polycarbonate |
| Insulation | II Protection class |
| Protection class | IP51 |
| Dimensions, mm | 325 x 177 x 55 |
| Weight, kg | < 1,5 |