- Three-phase network without neutral parameters continuous measurement.
- Calculation of active, reactive and total power, power factor and network frequency by two wattmeters method.
- Maximum values registration.
- Measuring current and voltage transformers coefficients presetting.
- Measuring results displaying according to transformation coefficients.
- Current measuring lines have galvanic isolation among themselves and from voltage measuring lines. RS-485 is galvanic isolated from all input circuits.
- Archiving data to SD-card (depends on modification).
- Interface RS-485, protocol Modbus RTU.
- 5-digits green indicator with 14-mm height symbol.
Specification
Nominal input values:
|
100 5 |
Measured values limits:
|
120 7.5 |
Reduced error for active and reactive power measuring, %, up to | ±0.5 |
Reduced error for current and voltage measuring, up to | ±0,5 |
Memory card type | SD |
Memory card size, Gb, up to | 2 |
Baud rate, kbps | 9.6; 19.2; 38.4; 57.6; 115.2 |
Power supply according to modification: |
220VAC 50Hz 110VAC 50Hz 24VDC |
Operating temperature range | +5°С..+50°С |
Dust and moisture protection | IP41 |
Overall dimensions (W×H×D), mm | 96×96×120 |
Ordering designation
Digital wattmeter VT-01-TK-ХXХ–Y, where
ХXХ – supply voltage:
«24V» – 24VDC
«220V» – 220VAC 50Hz;
«110V» – (70..130)VAC 50Hz;
Y – wattmeter modification:
«А» – modification with archive;
mo marking – modification without archive.