HT instruments PQA820 - Manual (Page 3)

PQA820
EN – 2
12.1. Voltage Anomalies .................................................................................................. 22
12.2. Voltage and current harmonics ............................................................................... 23
12.2.1. Limit values for harmonics ......................................................................................... 24
12.2.2. Causes of the presence of harmonics ........................................................................ 24
12.2.3. Consequence of the presence of harmonics .............................................................. 25
12.3. Definitions of power and power factor .................................................................... 26
12.3.1. Conventions on powers and power factors ................................................................ 27
12.4. Information on the measuring method .................................................................... 29
12.4.1. Integration period ....................................................................................................... 29
12.4.2. Calculation of the power factor ................................................................................... 29
13. SERVICE ................................................................................................................ 30
13.1. Warranty conditions ................................................................................................ 30
13.2. Service .................................................................................................................... 30