Siemens SICAM Q80 User guide

E50417-H1076-C420-A2
Power Quality Recorder
SICAM Q80
s
System manual
Document version 3.3 12.01.2015

3
Power Quality Recorder SICAM Q80 7KG8080, System manual
E50417-H1076-C420-A2, Release 12.01.2015
Table of Contents
1 SICAM Q80 5
2 Foreword 7
3 Introduction 11
4 QuickStart 17
5 Operation modes and settings 20
6 Operation of the Software 155
7 Extras 202
8 Appendix 234

5SICAM Q80
Power Quality Recorder SICAM Q80 7KG8080, System manual
E50417-H1076-C420-A2, Release 12.01.2015
1 SICAM Q80
Note
Please observe the instructions and warnings for your safety in chapter foreword "Information for
your safety "
Disclaimer of liability
The contents of this documentation have been carefully checked
for consistency with the hardware and software systems
described. Nevertheless, it is impossible to completely rule out
inconsistencies, so that we decline to offer any guarantee of total
conformity.
The statements made in this document are regularly checked and
any necessary corrections are reflected in subsequent editions.
We gratefully accept any suggestions for improvements.
We reserve the right to make technical modifications of the
systems.
Document version 3.3
Release 12.01.2015
Copyright
Copyright © Siemens AG 2013
This document shall not be transmitted or reproduced, nor shall
its contents be exploited or disclosed to third parties without prior
written consent from Siemens. Offenders will be liable for
damages. All rights, including rights created by patent grant or
registration of a utility model or design, are reserved
Registered Trademarks
SIPROTEC®, DIGSI®, OSCOP® and SICAM® are registered
trademarks of SIEMENS AG.
Other designations in this manual might be trademarks whose
useby third parties for their own purposes would infringe the rights
of the owner.
9

6 SICAM Q80 7KG8080
Power Quality Recorder SICAM Q80 7KG8080, System manual
E50417-H1076-C420-A2, Release 12.01.2015

7Foreword
Power Quality Recorder SICAM Q80 7KG8080, System manual
E50417-H1076-C420-A2, Release 12.01.2015
2 Foreword
Purpose of the manual
This manual generally describes the installation, commissioning, parameterization and operation of the power
quality recorder SICAM Q80 7KG8080.
Target audience
This manual is intended for project engineers, commissioning and operating personnel in electrical systems
and power plants.
Validity of the manual
This manual is valid for the power quality recorder SICAM Q80 7KG8080.
Additional support
For any questions concerning your system, please contact your local Siemens representative.
Hotline
Our Customer Support Center provides around-the-clock service.
Phone: [phone]
Fax: [phone]
Email: [e-mail]
FAQ: www.siemens.de/energy/support-faq
Courses
Please contact our Training Center to learn about our offers of personal training courses:
Siemens AG
Power Transmission and Distribution
Siemens Power Academy
Humboldtstr. 59
90459 Nürnberg
Phone.: [phone]
Fax: [phone]
Internet: www.siemens.com/energy/power-academy-td
Email: [e-mail]

8 SICAM Q80 7KG8080
Power Quality Recorder SICAM Q80 7KG8080, System manual
E50417-H1076-C420-A2, Release 12.01.2015
2.1 Copyright-note for Open-Source-products
Copyright (c) 1998 - 2008, Paul Johnston & Contributors (http://pajhome.org.uk/crypt/md5/index.html)
All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
following conditions are met:
Redistributions of source code must retain the above copyright notice, this list of conditions and the following
disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
the following disclaimer in the documentation and/or other materials provided with the distribution.
Neither the name of the author nor the names of its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
DAMAGE.

9Foreword
Power Quality Recorder SICAM Q80 7KG8080, System manual
E50417-H1076-C420-A2, Release 12.01.2015
2.2 Information for your safety
This manual does not represent a complete listing of all the safety measures required to operate he equipment
(module, device) since specific operating conditions may make further measures necessary.
However, it contains information which you have to observe in order to ensure your personal safety and in order to
avoid material damage. The information is highlighted by a warning triangle and, depending on the degree of danger,
is shown as follows:
Danger
indicates that death, severe personal injury or substantial property damage can result if proper
precautions are not taken.
Warning
indicates that death, severe personal injury or substantial property damage can result if proper
precautions are not taken.
Caution
indicates that minor personal injury or property damage can result if proper precautions are not
taken. This particularly applies to damage on or in the device itself and consequential damage
thereof.
Attention
indicates that property damage can result if proper precautions are not taken.
Note
indicates information about the device or respective part of these operating instructions which is
essential to highlight.

10 SICAM Q80 7KG8080
Power Quality Recorder SICAM Q80 7KG8080, System manual
E50417-H1076-C420-A2, Release 12.01.2015
2.3 Qualified personnel
Qualified personnel
Commissioning and operation of the equipment (module, device) described in this manual may
only be performed by qualified personnel. Qualified personnel, in the context of the safety
information contained in this manual, are persons authorized to commission, start-up, ground and
label devices, systems and circuits according to all applicable safety standards.
Use for the intended purpose
The equipment (device, module) may only be used for the applications specified in the catalog and
the technical manual, and only in connection with OEM devices and components recommended
and approved by SIEMENS-.
The prerequisites for trouble-free, reliable operation of the product include proper transport, proper
storage, proper installation and assembly, as well as proper operation and maintenance.
When operating electrical equipment, certain parts of this equipment are subject to dangerous
voltage levels. Therefore, improper handling can result in serious injury or equipment damage:
The equipment must be grounded at the PG terminal before making any connections
whatsoever.
Dangerous voltages may occur in all circuit components connected to the inputs or power
supply.
Dangerous voltages due to capacitor memory may still exist in the equipment even after it
has been disconnected from the power supply or input circuits.
Equipment with current transformer circuits must never be operated in any state where
the current transformer circuits are open-circuited.
The operating limits specified in the manual and in the operating instructions must not be
exceeded at any time (including inspection and commissioning).
The parameter value limits stated in the instructions may not be exceeded; this also applies to
inspection and commissioning situations.
2.4 Statement of Conformity
This product complies with the directive of the Council of the European Communities on the
approximation of the laws of the Member States relating to electromagnetic compatibility (EMC
Council Directive 2004/108/EC) and concerning electrical equipment for use within specified
voltage limits (Low voltage Directive 2006/95/EC).
This conformity has been established by means of tests conducted by Siemens AG in accordance
of the Council Directive in agreement with the standard IEC 61326-1:2006 for the EMC directives,
and with the standard EN 61010-1 for the low-voltage directive.
The device has been designed and produced for industrial use.
2.5 Disclaimer of liability
The contents of this documentation have been carefully checked for consistency with the hardware and software
systems described. Nevertheless, it is impossible to completely rule out inconsistencies, so that we decline to offer
any guarantee of total conformity.
The statements made in this document are regularly checked and any necessary corrections are reflected in
subsequent editions. We gratefully accept any suggestions for improvements.
We reserve the right to make technical modifications of the systems.

11Introduction
Power Quality Recorder SICAM Q80 7KG8080, System manual
E50417-H1076-C420-A2, Release 12.01.2015
3 Introduction
3.1 Application
SICAM Q80 7KG8080 is a IEC 61000-4-30 Ed. 2 class A measurement device for integral measurement of power
quality. It encompasses all important quantities for the assessment of electrical supply networks at once. The user
software serves the purposes of rigging the device, taking measurements with online monitoring and composing a
report of the quality analysis.
SICAM Q80 7KG8080 enables you to measure on up to 4 differently configured leads with a resolution extending up
to the 50th harmonic.
You can devise a variety of trigger mechanisms for long-term monitoring of events.
Along with the conventional trigger mechanisms which respond to the signal exceeding limit values which can be set,
it is also possible to set triggering conditions representing the signal deviating significantly from the expected curve
shape. Thus, as an example, any sudden signal deviations occurring during long-term monitoring which are due to
harmonics or brief voltage fluctuations (spikes) can be captured even if the magnitude of the deviation is much
smaller than the nominal value itself.
The long-term monitoring technique of measurements returns results with the following attributes: independent of
the option of triggered measurement mentioned previously, all relevant measurement data are recorded. SICAM Q80
7KG8080 provides you with the ability to decide after the measurement what limits you wish to set for which quantity,
and thus what to consider in the evaluation of results. The incoming data are converted online by the signal processor
to useful information for the user. The data volume is reduced to the minimum necessary. This avoids the danger of
losing record of relevant events which lie inside the boundaries.
Wherever Complete Recording isn't possible, the European standard EN50160 forms the basis for proceeding. This
standard stipulates minimum requirements for inspection of power quality, in terms of the scope and the precision of
measurements taken. By collaborating with German power suppliers on its development, SICAM Q80 7KG8080
benefits from large amounts of practical know-how which enables the scope of its functionality to go far beyond
EN50160.
By using multiple SICAM Q80 7KG8080 units with an external real-time clock (GPS, DCF 77, NTP or IRIG-B),
measured data from different sources can be synchronously correlated. And with the help of the database module, it
is possible to search through the data for any events or limit overstepping, and then display and compare them.
SICAM Q80 7KG8080 main field of application is stationary network monitoring with subsequent evaluation. But
short-term measurements are also fully supported, in which highly fluctuating disturbance phenomena must be
observed. For this purpose, the data can be displayed online on the connected PC.
And if the device is intended for stationary operation for longer periods (such as many months), a special data storage
mode makes it possible for the measurement results to be generated on a daily or even a monthly basis for later
retrieval at the user's convenience.
In the examples below, the values assume the European low voltage grid frequency of 50 Hz, and a phase-to-neutral
voltage of 230 Volt; for measurements of a 60 Hz grid or other voltages, the quantities must be converted/adapted
accordingly.

12 SICAM Q80 7KG8080
Power Quality Recorder SICAM Q80 7KG8080, System manual
E50417-H1076-C420-A2, Release 12.01.2015
3.2 Computation procedures
Concept of SICAM Q80 7KG8080
The computations are performed in accordance with the standard IEC 61000-4-30 Ed.2 class A compliant for the
following:
Frequency
Magnitude of Supply Voltage
Flicker
Voltage Dips, Swells, Interruptions
Unbalance
Harmonics
Mains Signaling
Time clock uncertainty
Flagging
Note
SICAM Q80 7KG8080 is designed to be used in either 50 Hz or 60 Hz grids.
The sample values presented pertain to a low voltage power network of 50 Hz and 230 V; in
case of any deviations, the nominal voltage or network frequency is noted.

13Introduction
Power Quality Recorder SICAM Q80 7KG8080, System manual
E50417-H1076-C420-A2, Release 12.01.2015
3.2.1 Effective (RMS-) values
Calculation of the RMS values is calculated every half period over a complete period (20 ms @ 50 Hz or 16,66 ms @
60 Hz).
This consists in summing up the squared input voltage values and taking the root of the result, as per the equation:
Here, P stands for the number of samples. For a sampling frequency of 10 kHz and a network frequency of 50 Hz, P =
100.
3.2.2 Flicker
Calculation of the flicker proceeds according to the description of a flicker meter in the standard EN 610000-4-15
(IEC868). However, the entire structure has been replicated completely digitally, i.e. as a component of DSP
program. Flicker calculation is performed at a sampling rate of 100 Hz. This means that the values arrive at the
classifier at a rate of 100 Hz.
The flicker calculation's input signal is the squared mean value from the RMS-value filter. Block 3's weighting filter
(see standard) can be realized completely correctly by digital signal processing. Switching between ranges isn't
necessary, since calculation is performed with 32-bit Floating-Point numbers. Scaling of the output signal to the
means value of the input voltage (Block 1) comes after the weighting filter.
The classifier at the end of the chain (Block 5) computes Pst. The classifier's operating range is 20. Up to a Pst
10, the error limit of 5 % is adhered to.
Note
If there are very strong amplitude fluctuations which would cause a value of Pst greater than 10,
the tolerance of 5% is no longer assured. In this case, the error cutoff depends on the
characteristic curve's interference and can range up to 12%.

14 SICAM Q80 7KG8080
Power Quality Recorder SICAM Q80 7KG8080, System manual
E50417-H1076-C420-A2, Release 12.01.2015
3.2.3 Rapid fluctuations of the RMS-value
Rapid changes in the RMS-values of voltage and current are recorded in the curve plots. For this purpose, a
patented procedure called Transitional Recording is used.
Fig 3-1 Curve plot of a voltage outage
The figure shows a voltage outage with data reduction. The crosses mark the sampled points of which the reduced
curve plot consists.
A "transition" always refers to a change from a stationary amplitude state to a new state, where state can also mean
a stretch of constant increase or decrease in amplitude. By comparing the slopes appearing within the curve to be
reduced, sudden changes of the curve's course can be detected. The procedure is designed to limit the resulting
curve plot's maximum deviation from the original signal.
The classic algorithm has been slightly modified for SICAM Q80 7KG8080. Thus, within a tolerance band of 5 %
around the nominal voltage, the algorithm works at its default accuracy of 1,5 %, while outside of this band it works at
twice that level, namely 0,75 %. The values can be edited via the user interface. As a result, events such as voltage
dips are represented in very high precision while within the uninteresting "passing" region, the data is strongly
reduced. By extending the data format to 64 bits the bufferable time range between two points is increased so that for
a constant voltage, an obligatory data point must be recorded only after approx. 23 hours.
These steps increase the achievable reduction factor al the way to 1:20,000 without sacrificing relevant information.
Ideally, if the network is free from disturbances, there would be eight data points per week: one per day plus the
initial point. By contrast, any disturbances are recorded with time resolution of one-half period. In any case: no
threshold values need to be set.

15Introduction
Power Quality Recorder SICAM Q80 7KG8080, System manual
E50417-H1076-C420-A2, Release 12.01.2015
3.2.4 Events
Typical courses of the voltage RMS-value which can be characterized by the duration and depth1of the amplitude,
are recorded by SICAM Q80 7KG8080 as events.
Fig 3-2 Event with duration and magnitude
The curve plots of the RMS-values serve as the source for the capture of events. While the deviation of the RMS-
value in one direction leads to the recording of a data point in a reduced curve plot, an event is always defined by
two transitions: one from the normal voltage level to the fault level one another one back to the normal level.
The duration of an event is measured between two departure points, in other words at the amplitude setpoint. The
magnitude of the event is determined from the minimum or maximum amplitude in the disturbance region. This is
done in the assumption that the amplitude remains relatively constant during the disturbance.
According to currently valid standards, every deviation of >10% form the nominal voltage counts as an event.
Depending on the duration and amplitude, distinctions are made between sags and outages.
1For overvoltage, depth is the same as height.
3.2.5 Signal voltage (ripple control signals)
Signal voltage refers to a signal superimposed onto the supply voltage, which is used to communicate information.
The most familiar example is so-called ripple control signals.
SICAM Q80 7KG8080 has three special channels, each with different time resolution, for monitoring signal voltages.
1. In addition to the harmonics and interharmonics, the mean voltage level at signal frequency is also recorded.
2. The RMS-value of the spectral line of the FFT corresponding to the signal frequency is recorded with data
reduction.

16 SICAM Q80 7KG8080
Power Quality Recorder SICAM Q80 7KG8080, System manual
E50417-H1076-C420-A2, Release 12.01.2015
3.2.6 Harmonics, interharmonics
Calculation of the frequency components in voltages, currents and thus also in power is performed by means of a Fast
Fourier Transformation (FFT).
Fig 3-3 Mean values from FFT
The FFT is computed with a rectangular window as per the standard EN 61000-4-7 "Specifications for the
measurement of harmonics and interharmonics in power supply networks". The harmonics are computed according to
the method of harmonics-subgroups, where the RMS value is determined with the two adjacent frequency lines.
The THD (total harmonic distortion) is determined according to the method of harmonics-subgroups total distortion.
This is the ratio of the RMS of the harmonics subgroups to the RMS of the fundamental oscillation subgroup.
Analogous to THD for current, in % of fundamental oscillation
with
= Maximum in the calculation interval
The THD pertains to the fundamental oscillation. For this reason, even slightly distorted currents can yield a relatively
high THD, which is why with the TDD (Total Demand Distortion), the reference frame is not the mean of the
fundamental oscillation amplitude, but the maximum fundamental oscillation amplitude within the interval observed.
Thus, TDD <= THD. Since small currents only have minor effects on the overall system, the TDD is a better metric of
the burden from harmonic distortion.
This causes the number of samples to vary since it is chosen on the basis of the fundamental frequency in order to
calculate exactly the harmonic and interharmonic components of that particular fundamental. Example: According to
the standard, the frequency may deviate within the range 50 Hz ±1%. This means that for a 10 kHz sampling
frequency, a period can vary between 98..102 sample values.
The resulting frequency vector is used to derive the aggregation of the 50 harmonics and 10 interharmonics. Together
with the THD and signal voltage, 64 aggregations are derived for each input signal.
The spectra produced by the FFT can be viewed immediately by means of the online monitoring, for which purpose no
aggregation are computed. The special channel for the signal voltage recorded with data reduction (ripple control
signals) is fed directly from the FFT.

17QuickStart
Power Quality Recorder SICAM Q80 7KG8080, System manual
E50417-H1076-C420-A2, Release 12.01.2015
4 QuickStart
Brief instructions on starting SICAM Q80 7KG8080 for the first time.
"Task process"the tree diagram on the left side of the interface; according to
the selection made here; the right side displays corresponding options, data or
lists
4.1 Installation
Install the software
Connect measurement unit to the communication network
Connect measurement with all measurement leads (observe safety guidelines for dealing with high voltages!)
Switch on measurement unit. If you are commissioning multiple devices, switch on one at a time and assign the
IP-address.
Set IP address with program IF-Config (Start>program files>SICAM Q80 Manager>IF-Config).
oClick on the plus-sign by the network adapter in the left column
oClick on the plus-sign for your device
oSelect the LAN branch
oSet the IP-address
Start the SICAM Q80 Manager program Prompt for device definition "OK"
Device selection dialog opens
oSelect "New..."
oSelect "Network settings..."
o"TCP/IP" must be selected
oSelect "Network search"
oSelect SICAM Q80 7KG8080
"Add device interface"-dialog appears
"Settings for network"-dialog appears
Close with "OK"
PC searches network for SICAM Q80 7KG8080 devices
Close with "OK"
Note
If your device doesn't appear in the list, you must first call "IF-Config" and assign the device a valid
address. (Start Menu/SICAM Q80 7KG8080/IF-Config; rf. “Configuring the Interface ").
The device selection dialog must be in the right-hand side list finish with "OK"
On the page Topology, right-click the mouse over the device and select New Parameter Set... the
Assistant opens.
(use the toolbar button or menu item "Parameter-Set / New Ctrl+N")
Enter a name for a new measurement site e.g. "Power Station 1"
Device is selected
Enter a name for the measurement task e.g. "Test 1"
204
22

18 SICAM Q80 7KG8080
Power Quality Recorder SICAM Q80 7KG8080, System manual
E50417-H1076-C420-A2, Release 12.01.2015
Complete the summary form by clicking
4.2 Making basic settings
The description for the measurment task opens 3-phase voltage measurement is selected,
or Task process/Network quality/Setup/Basic settings
Enter names for "Company", "Department",.. "Comment" …optional
4.3 Measuring
Scroll down in the window, click the start dialog opens
or click on the toolbar key , or Task process/Measure/Start Stop network analysis
The device's current state is indicated click
The parameter are sent to the device. The device is started "Measurement is active"
You can now disconnect and exit the software; the device can continue measurement without the PC.
Or online monitoring of the measurement
oClick complete overview is displayed
oTask process / Measure / Standard display various data views can be selected
Return to Task process / Measure / Start Stop network analysis End measurement
(to obtain analyzable data, measurement should run at least 20 min)
4.4 Data transfer
Click on in the start dialog
or Task process / Data transfer or click in the toolbar
Select SICAM Q80 Manager searches the hard drive for saved measurements
Select a measurement and move it to the lower list
Select Measurement data are transferred and pre-processed

19QuickStart
Power Quality Recorder SICAM Q80 7KG8080, System manual
E50417-H1076-C420-A2, Release 12.01.2015
4.5 Evaluation
Go to analysis mode via toolbar button or Task process / Evaluation
Select a measurement from the list double-click or click
Task process / Evaluation / Network quality report opens the report dialog, with display measurement
settings and measurement duration
At the start of the evaluation, click Evaluation as per EN 50160 NV and MV or select other
value limits in Task process / Evaluation / Standard and limit values
Summary form appears filled in are there values which exceed standards limits?
Clicking on a bar in the overview chart, you go to the corresponding results table.
Use the toolbar button or menu item "Parameter-Set / Print.." to print out the report
Detailed observation of measured data under Task process / Evaluation, special overviews are available for
each type of measured data
E.g. Task process / Evaluation / Frequency displays
otable of all immediately displayable data,
otable of minimum and maximum values of the displayable data.
At the right edge of the window, there is a toolbar (the functions affect the data window selected, if more than
one window is open. A mouse-click on a window highlights it).
The available buttons are:
oCalculates histograms for the selected data
oOpens the dialog for Measuring/displaying data values
oOpens a data navigator (for moving through a long measurement data set)
oOpens the dialog Channel selection…, in order to be able to add any amount of additional channels to
the data window
Use the toolbar button or the menu item "Parameter-Set / Print.." to print out the data window
Menu item "Parameter-Set / Print preview" see effect of printout settings; make changes before printout, for
example, add comments…

20 SICAM Q80 7KG8080
Power Quality Recorder SICAM Q80 7KG8080, System manual
E50417-H1076-C420-A2, Release 12.01.2015
5 Operation modes and settings
SICAM Q80 7KG8080 is able to performlong-term analysis. Long term analysis is accessed under the tree branch
Network quality and is the actual application complex which includes e.g. the standard EN50160 plus a few extras.
The task steps "Setup" and "Measurement" refer to the measurement task which was either just loaded or to be
processed. The other task steps use the current settings as defaults, but do not change the configuration.
5.1 Network quality
Loading a new measurement configuration / New start
Loading a configuration
Displays overview of all configured measurement devices
Switch to measurement data analysis and Evaluation
21
109