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ZES ZIMMER Electronic Systems
Conformity / Test System

Conformity / Test System

Product catalog summary

Conformity and Standards
The document outlines the requirements for electrical installations and devices within the European Community, emphasizing the necessity of the CE mark for compliance with the Electromagnetic Compatibility (EMC) law. This ensures regulation of electromagnetic interference emissions and immunity.

Harmonics Analysis (EN61000-3-2)
Devices with non-linear load characteristics can generate current harmonics, leading to voltage distortion. The EN61000-3-2 standard limits these harmonics, classifying devices into four classes (A, B, C, D) with specific evaluation methods. ZES ZIMMER LMG series devices are used to assess compliance.

Flicker and Voltage Changes (EN61000-3-3)
Voltage fluctuations causing flicker are addressed by EN61000-3-3, which specifies reference impedance values and limits for voltage changes. A diagram in the document illustrates flicker severity and sensitivity across frequencies.

Measuring Setup and Software
The SYS61K system employs high-precision power meters for direct measurements per EN61000-3 standards. The software manages settings, archives data, and prints test protocols for CE declarations, allowing configuration of instruments and test runs.

Testing and Results
An example of a harmonics test setup using ZES LMG95 devices is provided, detailing measurement ranges and results, highlighting failures in voltage and current harmonics limits. The software aids in pre-compliance tests by identifying harmonics and flicker causes.

Analysis and Diagnostics
SYS61K software uses statistical and regression methods for analyzing harmonics and flicker, helping identify dependencies and causes for efficient countermeasures. It is particularly useful for devices with combined loads, like washing machines.

Overview
The document focuses on harmonics and flicker analysis in electrical systems, highlighting ZES ZIMMER Electronic Systems' products for testing and measurement.

Specifications and Procedures
Procedures for flicker tests on devices like copiers are outlined, emphasizing active power changes. The software allows comparative analysis and generation of test protocols, available in detailed or summary forms.

Norms and Standards
References are made to standards for testing device immunity, including voltage variation (EN61000-4-11), harmonics (EN61000-4-13), over-/undervoltage (EN61000-4-14), and frequency variation (EN61000-4-28).

Recommendations and Best Practices
High-precision power meters from the LMG series are recommended for ensuring voltage stability during tests. Special active filters are suggested for pre-compliance testing without AC sources.

Key Features of ZES ZIMMER Products
The document describes the modular and open system architecture of ZES ZIMMER's products, allowing integration with existing power sources and easy upgrades. Ready-to-use systems and individual components, including AC sources and reference impedances, are available.

Data and Graphs
A normal distribution graph shows the third current harmonic of phase 1, and a regression graph illustrates its dependence on active power. A table lists available AC sources for various testing performances.

Catalog excerpts

-Conformity > SYS61K Test System > EN61000-3-2 HarmonicsEN61000-3-3 Flicker SYS61K e 11.00 SYS61K >

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low-frequencyperturbation on mains causedby current harmonics and flicker .Conformity must be tested. The EN61000-3-2/-3 is almostidentical to IEC61000-3-2/-3. are also specified in the standards relating to the EMC law Electromagnetic compatibilityand Electrical installations, systemsand devices which are to be marketed within the EC must be given the CE mark of con- formity by the manufacturer or the importer. The products must be tested to ensure that they satisfy the requirements of the law relating to Electro- magnetic Compatibility (EMC). The standards of the EMC law classify the permissible...

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Measuring set-up With the LMG series of high-precision power meters/analysers, direct measure-ments can be carried out in accordance with the adjacent block diagram, with good result visualisation on the graphic monitor of the LMG devices. > Measuring set-up for measurements in accordance with EN61000-3, 3-phaseDevice classification for Class DCurrent harmonics with limit values in accordancewith Class D (analysis window over 10, 12 or 16 periods in accordance with EN61000-3-2) System software for SYS61K All operating states of the testsample must be run through in standardised tests. To establish...

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Measurement of harmonics Measurement of flicker The MeasurementӔ menu in the screenshot above shows the current measurement as defined inthe SettingsӔ menu for testing harmonics. This screenshot shows a flicker measurement in progress. The 1st, 6th and 10th short time flickervalue P > st is above the permissible value P > st =1 in all three phases. The Remaining timeӔ windowshows the time still required to determine a long time flicker value P > lt . P > lt is calculated as anaverage of the 12 P > st values. >

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Phase 1 2 3 n Imax fluc% Iall I/Imax% Umax Imax fluc% Iall I/Imax% Umax Imax fluc% Iall I/Imax% Umax >

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software for the SYS61K (order no. SYS61K-Soft) can also be obtained separately. However, it can only run with the LMG95 and LMG450 analysers. referenceimpedance is available as1-phase and 3-phase versions. It is designed for a current level of 16 A per phase. The reference impedance can be remote-controlled via the digital outputs of the process signal interfaceӔ of the LMG devices. For measurements of harmonics currents, it is bridged by the built-in switch. It is switched in again for measuring flicker. The In the RP series, arbitrarycurve shapes can be set to a limited extent using the PC...

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