Min/Max Recording; Power Quality; Power And Power Factor - Siemens 9810 Series User Manual

Measurements
• Individual harmonics (including magnitude, phase angle phase and inter-harmonics) up to the
63
• Total even harmonic distortion (TEHD), total odd harmonic distortion (TOHD)
• Total harmonic distortion (THD), total demand distortion (TDD)
• K-factor, Crest factor

Min/max recording

Your meter records new minimum and maximum data every recording interval for a variety of
values.
• Voltage and current
• kW, kVAR and kVA
• Power factor
• Frequency
• Voltage unbalance

Power quality

Your meter monitors the voltage channels, detects and records power quality events.
The meter measures and records:
• Sag/swells: ITIC/CBEMA and SEMI curves
Power quality standards compliance:
• EN 50160
• IEC 61000-4-30 Class S
• IEEE 519
The meter supports advanced power quality features:
• Disturbance Direction Detection: the meter can capture sag/swell disturbances, analyze the
information and determine the direction of the disturbance relative to the meter. Determining
the source of a disturbance more quickly and accurately helps prevent repeat occurrences
and minimize facility downtime.
• COMTRADE: the meter can save waveform data in COMmon format for TRAnsient Data
Exchange (COMTRADE) format, which is available for download using an SFTP client
application. This is intended for use in conjunction with IEC 61850.
• Setpoint learning: You can configure your meter to learn certain disturbance-related values,
such as what constitutes a sag, swell, or high or low setpoint.

Power and power factor

The sampled measurements taken at the meter's voltage and current inputs provide data for
calculating power and power factor.
In a balanced 3-phase alternating current (AC) power system source, the AC voltage waveforms
on the current-carrying conductors are equal but offset by one-third of a period (a phase angle
shift of 120 degrees between the three voltage waveforms).
232
rd
harmonic
9410 series - User manual
7EN05-0336-09