METREL MI 2792 PowerQ4 Plus, Instruction Manual

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MI 2792 PowerQ4 Plus
Table of contents
5
5.2 EN 50160 Standard Overview .......................................................................119
5.2.1 Power frequency ....................................................................................119
5.2.2 Supply voltage variations .......................................................................120
5.2.3 Voltage dips (Indicative values)..............................................................120
5.2.4 Short interruptions of the supply voltage ................................................120
5.2.5 Long interruptions of the supply voltage.................................................120
5.2.6 Supply voltage unbalance ......................................................................120
5.2.7 THD voltage and harmonics...................................................................120
5.2.8 Interharmonic voltage.............................................................................121
5.2.9 Mains signalling on the supply voltage ...................................................121
5.2.10 Flicker severity .......................................................................................121
5.2.11 PowerQ4 Plus recorder setting for EN 50160 survey .............................121
6 Technical specifications ....................................................................................123
6.1 General specifications ...................................................................................123
6.2 Measurements...............................................................................................123
6.2.1 General description ................................................................................123
6.2.2 Phase Voltages ......................................................................................124
6.2.3 Line voltages ..........................................................................................125
6.2.4 Current ...................................................................................................125
6.2.5 Frequency ..............................................................................................126
6.2.6 Flickermeter ...........................................................................................126
6.2.7 Power .....................................................................................................126
6.2.8 Power factor (Pf) ....................................................................................127
6.2.9 Displacement factor (Cos φ )...................................................................127
6.2.10 Energy....................................................................................................127
6.2.11 Voltage harmonics and THD ..................................................................128
6.2.12 Current harmonics and THD ..................................................................128
6.2.13 Voltage interharmonics...........................................................................128
6.2.14 Current interharmonics...........................................................................128
6.2.15 Signalling................................................................................................129
6.2.16 Unbalance ..............................................................................................129
6.2.17 Time and duration uncertainty................................................................129
6.2.18 Temperature...........................................................................................129
6.3 Recorders......................................................................................................130
6.3.1 General recorder ....................................................................................130
6.3.2 Waveform recorder.................................................................................130
6.3.3 Inrush/fast recorder ................................................................................130
6.3.4 Waveform snapshoot .............................................................................131
6.3.5 Transients recorder ................................................................................131
6.4 Standards compliance ...................................................................................131
6.4.1 Compliance to the IEC 61557-12 ...........................................................131
6.4.2 Compliance to the to the IEC 61000-4-30 ..............................................133
7 Maintenance........................................................................................................134
7.1 Inserting batteries into the instrument ...........................................................134
7.2 Batteries ........................................................................................................135
7.3 Power supply considerations.........................................................................136
7.4 Cleaning ........................................................................................................136
7.5 Periodic calibration ........................................................................................136
7.6 Service ..........................................................................................................136
7.7 Troubleshooting.............................................................................................136