Siemens SICAM 7KG85X, Manual, Page: 16 / 281

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Flicker
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Supply voltage dips, swells, and interruptions
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Voltage unbalance
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Voltage harmonics
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Current magnitude
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Current harmonics
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Current unbalance
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Active, reactive, and apparent power
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Active, reactive, and apparent energy
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Power factor and active power factor
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Voltage and current THDS (Subgroup Total Harmonic Distortion)
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Phase angles
The uncertainty of operational measured quantities is compliant to the IEC 62586-1 product standard, class S,
the IEC 61000-4-30, Ed. 3 power quality standard.
For detailed information on measured values and measured quantities, see chapter
2.5.4 Measurands and the
Technical data in chapter 12 Technical Data .
Functionality of Records
The device can record measured values, events, and load profiles in parameterizable time intervals. The
following types of records are used:
•
Measurement records (only SICAM P855):
Recording of PQ measured quantities acc. to IEC 61000-4-30 (for example, frequency and voltage magni-
tude) and non-PQ measured quantities (for example, currents and power) as well as parameterized
periods, for example, 10-second frequency, voltage aggregation, current, and power
•
Trend records (only SICAM P855):
Long-term recording and monitoring of the voltage-change history within a parameterized time period in
programmable tolerance ranges; 1/2 cycle RMS values
•
Waveform records:
Recording of voltage and current sampled values with (at 50 Hz, about 204 samples per system period)
using programmable triggers
•
Event records:
Recording of voltage events (acc. to IEC 61000-4-30: swells, dips, interruptions)
•
Load-profile records:
Recording of load profiles determined on the basis of 10/12 cycles (50 Hz/60 Hz)
The device hosts a 2 GB micro SD card for storing the records.
Energy Management
As part of the energy management, the device records load profiles according to the
Fixed Block
or
Rolling Block
method for all power quantities. Additionally, it is possible to calculate up to 8 tariffs (TOU =
Time of Use). Synchronization is processed with external or internal triggers.
Communication
The device has 1 Ethernet port which can be used as the Ethernet interface or as the integrated Ethernet
switch (in 1 network). Ethernet supports the device parameterization, transmission of measured values,
metered values, load profiles, and indications/events and the time synchronization with NTP. The supported
Ethernet communication protocols are HTTPS, IEC 61850, Modbus TCP, and SNMPv1.
Introduction
1.1 User Information
SICAM, SICAM P850/P855 7KG85X, Manual 15
E50417-H1040-C482-A9, Edition 03.2022