DPA 503
Highlights
- Full-compliant analyzer
- Real-time data acquisition
- Internal hard disk for data storage
- 6 input channels
- Separate inputs for voltage and current
- Wide-range current input up to 140Arms
- 16bit A/D converter
- Self-calibration function
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Application
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Harmonics and interharmonics are caused by modern electronic power conditioning modules. Such, mostly non-linear, modules to control loads and to reduce power consumption is the source of voltage at unwanted frequencies superposed on the supply voltage.
Voltage fluctuations caused by varying load currents may influence luminance or spectral distribution of lighting systems. The impression of unsteadies of visual sensation induced by this light stimulus is called flicker.
The DPA503 is used for 3-phase applications but also supports single phase applications.
Voltage fluctuations caused by varying load currents may influence luminance or spectral distribution of lighting systems. The impression of unsteadies of visual sensation induced by this light stimulus is called flicker.
The DPA503 is used for 3-phase applications but also supports single phase applications.
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Benefits
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The fully compliant harmonics and flicker analyzer
The DPA 503N is a fully compliant analyzer for harmonics and flicker as per the latest IEC/EN 61000-3-2, IEC/EN 61000-3-3 and JIS C 61000-3-2 as well as IEC/EN 61000-3-11 and IEC/EN 61000-3-12 requirements. The DPA503 has six independent input channels; three for voltage and three for current. It follows the design specifications as per IEC/EN 61000-4-7:2002 and Am.1:2008 (for Class A instruments) for harmonics analyzers and IEC/EN 61000-4-15:2003 for flicker meters.
Based on a real-time kernel and equipped with its own harddisk it allows to record the measuring data continuously without any gaps or overlapping. The rectangular measurement window is synchronised to each group of 10 or 12 cycles of the mains supply frequency (50Hz or 60Hz) by means of a digital PLL (Phase Lock Loop). A wide-range current input (up to 140A) avoids loss of measured data due to range switching that would occur when using different shunt resistors.
The classification of the measurement can be selected at any time, before or after the measurement has been performed. During all measurements the AC supply voltage is measured simultaneously with the current.
Based on a real-time kernel and equipped with its own harddisk it allows to record the measuring data continuously without any gaps or overlapping. The rectangular measurement window is synchronised to each group of 10 or 12 cycles of the mains supply frequency (50Hz or 60Hz) by means of a digital PLL (Phase Lock Loop). A wide-range current input (up to 140A) avoids loss of measured data due to range switching that would occur when using different shunt resistors.
The classification of the measurement can be selected at any time, before or after the measurement has been performed. During all measurements the AC supply voltage is measured simultaneously with the current.
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Software
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dpa.control - The Control and Analysing Software for Harmonics and Flicker
dpa.control is the software tool needed for the operation of the harmonics and flicker analysing system. It offers all features to control the DPA 503, to upload the recorded measuring data and for classification and analysis. It includes analysis as per the latest standards. An easy Fail/Pass function allows fast analysis while detailed data is available for extended analysis and EUT evaluation purposes.
The dpa.control offers a powerful documentation capability with direct export to Word.
The dpa.control offers a powerful documentation capability with direct export to Word.
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Auxiliary Devices
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ACS 503 - Three-phase AC voltage source 20kVA
The ACS 503 three-phase AC voltage source is used to provide a pure AC supply voltage for harmonics and flicker analysis as recommended by IEC/EN 61000-3-2, IEC/EN 61000-3-3, JIS C 61000-3-2 as well as IEC/EN 61000-3-11 and IEC/EN 61000-3-12. It offers a rated power of 20kVA. The output voltage ranges up to 3x520V with a nominal current up to 32A (peak current capability of up to 98A per phase).
The ACS 503 AC voltage source is controlled by dpa.control.
The ACS 503 AC voltage source is controlled by dpa.control.
AIF 503S1 Reference Impedance as per IEC/EN 61000-3-3/-3-11
This reference impedance specified by IEC/EC 61000-3-11 is used for flicker measurements on three-phase DUTs up to 32A.
Two different impedance values can be set; Zref (0.24ohm + j0.15ohm; 0.16ohm + j0.10ohm) and Ztest (0.15ohm + j0.15ohm; 0.10ohm + j0.10ohm). For applications up to 16A an AIF 503 with only Zref is available.
The AIF 503/503S1 reference impedance are remote controlled from the DPA 503.
Two different impedance values can be set; Zref (0.24ohm + j0.15ohm; 0.16ohm + j0.10ohm) and Ztest (0.15ohm + j0.15ohm; 0.10ohm + j0.10ohm). For applications up to 16A an AIF 503 with only Zref is available.
The AIF 503/503S1 reference impedance are remote controlled from the DPA 503.
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