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Table of Contents
Power Quality Analyzer
Requirements
- 3-phase voltage, current, frequency, measurement
- active, reactive, apparent power, power factor
- neutral current
- harmonics analysis up to 50th order
- quality - swell, dip, interruption, transient/over voltage, inrush current, unbalance rate
- real-time operation
- USB communication interface
AC sensors
AC voltage sensor
Voltage divider for measuring phase voltages - SPICE simulation schema
Normal grid conditions
Phase VL3 disconnected
VL2 & VL3 phases disconnected (only VL1 connected)
Power supply
| Component | Max. consumption [mA] | # | Total consumption [mA] |
|---|---|---|---|
| ACS712 | 13 | 4 | 52 |
| TL084 | 12 | 2 | 24 |
| 78xx/79xx | 6 | 3 | 18 |
| Total | 94 |
Schema
