General Information On Measuring And Recording; Measuring System - Siemens SICAM Q100 7KG95 Series Manual

Measuring and Recording

3.1 General Information on Measuring and Recording

3.1 General Information on Measuring and Recording

Measuring System

3.1.1
The device measures the power quality according to IEC 61000-4-30 Ed. 3 in 1-phase or polyphase energy
supply systems.
The basic measuring interval for calculation of the following values is 10 cycles in 50-Hz systems or 12 cycles
in 60-Hz systems:
•
Voltage RMS values
•
Harmonics and interharmonics of voltages
•
Voltage unbalance
•
Currents
•
Harmonics and interharmonics of currents
NOTE
i
i
Depending on parameter settings, the browser displays the measured values with the corresponding unit
or indications in a table that is updated every 10 s. Harmonics and interharmonics can be represented in a
table or in a diagram.
The measuring functions are divided into the following parts:
•
PQ measurements
•
Operational measurements
•
Energy management and counter functions
An overview of the measured quantities demanded according to IEC 61000-4-30 Ed.3, their measurement
uncertainty and measuring ranges are represented in the following tables.
88 SICAM, SICAM Q100 7KG95xx, Manual
E50417-H1040-C522-A9, Edition 06.2021