3.12.3
Alarm setup ..............................................................................................57
3.12.4
Communication ........................................................................................59
3.12.5
Time & Date .............................................................................................59
3.12.6
Language .................................................................................................60
3.12.7
Instrument info .........................................................................................60
4
Recommended Recording Practice and Instrument Connection.....................61
4.1
Measurement campaign ..................................................................................61
4.2
Connection setup ............................................................................................64
4.2.1
Connection to the LV Power Systems ......................................................64
4.2.2
Connection to the MV or HV Power System.............................................67
4.2.3
Current clamp selection and transformation ratio setting .........................68
4.3
Number of measurements and connection type relationship...........................72
5
Theory and internal operation .............................................................................75
5.1
Measurement methods....................................................................................75
5.1.1
Measurement aggregation over time intervals .........................................75
5.1.2
Voltage measurement (magnitude of supply voltage) ..............................75
5.1.3
Current measurement (magnitude of supply current) ...............................76
5.1.4
Frequency measurement .........................................................................76
5.1.5
Phase power measurements....................................................................77
5.1.6
Total power measurements......................................................................77
5.1.7
Energy......................................................................................................78
5.1.8
Harmonics ................................................................................................79
5.1.9
Flicker.......................................................................................................80
5.1.10
Voltage and current unbalance ................................................................82
5.1.11
Voltage events .........................................................................................82
5.1.12
Alarms ......................................................................................................85
5.1.13
Data aggregation in RECORDING ...........................................................85
5.1.14
Power and energy recording ....................................................................88
5.1.15
Waveform snapshoot ...............................................................................89
5.1.16
Inrushes ...................................................................................................89
5.2
EN 50160 Standard Overview .........................................................................91
5.2.1
Power frequency ......................................................................................91
5.2.2
Supply voltage variations .........................................................................91
5.2.3
Voltage dips (Indicative values)................................................................91
5.2.4
Short interruptions of the supply voltage ..................................................92
5.2.5
Long interruptions of the supply voltage...................................................92
5.2.6
Supply voltage unbalance ........................................................................92
5.2.7
THD voltage and harmonics.....................................................................92
5.2.8
4.4.2 Flicker severity ................................................................................92
5.2.9
PowerQ4 recorder setting for EN 50160 survey.......................................93
6
Technical specifications ......................................................................................93
6.1
General specifications .....................................................................................93
6.2
Measurements.................................................................................................94
6.2.1
General description ..................................................................................94
6.2.2
Phase Voltages ........................................................................................94
6.2.3
Line voltages ............................................................................................95
6.2.4
Current .....................................................................................................95
6.2.5
Frequency ................................................................................................96
6.2.6
Flickermeter .............................................................................................96
6.2.7
Power .......................................................................................................96
