Measurement of RMS values, waveforms, etc. of real-time voltage and current
Prevention of equipment malfunctions by measuring harmonic components
Detection of abnormalities such as momentary voltage sags and power outages
Calculation of active power, reactive power, apparent power, power factor, etc.
| Division | Single-Channel PQM | Multi-Channel PQM | |
|---|---|---|---|
| Number of 3-phase channels | 1 | 2 | |
| Single-phase channel (including DC) | 1 | 4 | |
| DI / DO | 2/2 | 4/4 | |
| Measurement voltage | AC 0 – 380V / DC 0 – 300V | ||
| Measurement current | 0 – 20A | ||
| Measurement frequency | 50 – 70Hz | ||
| Precision (sag/swell) | ±0.5% | ||
| THD measurement precision | ±0.5% | ||
| Power Quality | Voltage Dip[Sag/Swell] | IEC61000-4-30, ±0.5% Full scale | |
| Voltage/Current THD | IEC61000-4-7, up to 63 harmonics | ||
| Current TDD | IEC61000-4-7, up to 63 harmonics | ||
| Voltage/current unbalance ratio | IEC61000-4-30 NEMA MG1 | ||
| METER | Real Time | Phase Volt, Line Volt, Current, Power, Angle Reactive Power, Power Factor, Loads Feature | |
| Energy | Energy, Reactive energy, Apparent Energy, Demand | ||
| Monitoring | Harmonics | V/I Unbalance, THD, indiviual Harmonics, Current K Factor, Volt Crest Factor | |
| Demand | Current, Power | ||
| Communication | RS232/485, CAN2.0B, Modbus RTU, Ethernet, Wifi/BT | ||
Noise in the 3~100kHz band
Monitoring of high-temperature spark discharge phenomena due to insulation damage and poor contact
Analysis of current waveform, high-frequency noise pattern and monitoring of insulation resistance, and leakage current