LV-VA3
MEASUREMENTS
One minute averages
- Voltage RMS
- Voltage increase/decrease RMS
- Total harmonic distortion in voltage
- Individual number of harmonics measurement in voltage and current
- Voltage asymmetry
- Voltage min/max RMS
- Total harmonic distortion in voltage min/max
Events
- Voltage dip/swell
- Voltage interruption
- Fast voltage changes
- Flickers
KEY FEATURES
- Measuring the voltage quality characteristics according to IEC 61000-4-3 standard
- Accuracy of voltage and current measurement ≤1%
- Measurement of 3 phase voltage protected with internal fuse
- LTE 4G communication, with internal antenna
- MQTT data forwarding
- Remote parameterization and firmware update
- 3,5 minute power supply backup for LTE communication
- Power supply from at least 1 existing phase
- LED status indications on the front panel
- UV resistant, IP65 construction
- Installation without disassembling the device
- Installation under voltage GPS location identification (optional)
| Input voltage | 100…280 VAC |
| Power consumption | 3 W average, max. 5 W |
| Frequency | 48…52 Hz |
| Operation temperature | -25…75 °C |
| Voltage measurement | 3 phase |
| Accuracy of voltage measu | ≤1 % |
| Voltage measurement range | 0…280VAC |
| Overloading possibility of voltage measurement | 400 VAC |
| Internal fuse | 10x38 mm, 1A, 500V, I1>100kA |
| Surge | 6 kV |
| Insulation strength | 2.5 kVeff |
| Power backup time | 3.5 minute |
| Sampling frequency | 32 kHz |
| Power supply source | From measured network |
| Restarting time after the returning of the supply voltage | <20 s |
| Internal clock accuracy | <1 s/day |
| Communication | LTE 4G, GPRS |
| IP protection | IP65 |
| Dimensions | 193 x 164 x 88.6 mm |
| Mounting | 2 x 6-15 mm strapping |
| (optionally: with screw) | 6 kV |
| Weight (together with the cables) | 2 Kg |
