Phasors; Power Quality Standards Compliance Meter Compliance - Siemens US2:9810T24V User Manual

9810 series - User manual

Phasors

Phasors are used to represent the voltage and current magnitude and angles.
The length of the lines in the phasor diagram represent the relative magnitude of the voltages with
respect to the other phase voltages, and the currents with respect to the other phase currents. All
angles are measured with respect to the Va/V1 phase. The Va/V1 phasor is fixed to the right-hand
horizontal axis (positive x-axis). Positive angles are measured counterclockwise.
Measured values are provided for the magnitude and relative angle for each voltage and current
phase.
Delta vector diagrams can be configured to display two different ways:
• Instrument (voltage vectors appear 60 degrees apart - showing the actual voltage and current
values that the meter is measuring).
• System (voltage vectors appear 120 degrees apart - showing true system operation including
any calculated values).
Phasor information can be used to troubleshoot incorrect connections on the meter's voltage and
current inputs (for example, switched phase wiring or polarity errors), if you know how the phasors
should be oriented for your power system.
Phasor information can be viewed using ION Setup, meter webpages, or the display.
Power quality standards compliance
Meter compliance
Your meter is compliant with the following power quality standards.
IEC 62586-1 and IEC 62586-2
Your meter is compliant with IEC 62586-1 and IEC 62586-2. The meter classification is PQI-A-
FI1, defined as follows:
Product Code Description
PQI
A
F
I
1
NOTE: Your meter has Power station electromagnetic immunity compliance in accordance with
IEC 61000-6-5.
IEC 61000-4-30
IEC 61000-4-30 power quality standard compliance is provided by ION modules including: Power
Quality Aggregator, Harmonics Measurement, Disturbance Analyzer, Symmetrical Components,
Mains Signaling Evaluation, and Sag/Swell.
7EN05-0390-08
Power quality instrument
Functions class A according to IEC 61000-4-30
Fixed installed equipment
Indoor application
Indoor environment with uncontrolled temperature variations
Power quality
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