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INTRODUCTION

Boconsult manufactures the following equipment in accordance to the new requirements of IEC61000-4-15

B10 - IEC Low Frequency Emission Analyzer (IEC555-2/3 IEC100-3-2/3 En61000-3-2/3)

 

 

B10 is a fully instrument measuring harmonics, flicker and voltage fluctuations in full compliance with the latest IEC1000-3-2 and IEC100-3-3 EMC standards.  B10 takes advantage of the long standing experience of Boconsult in Flicker measurements and Spitzenberger + Spies in harmonic measurements, and it is easily integral with the Spitzenberger + Spies PHE complete Test system.

 

Though B10 is particularly suitable for integration in test systems racks (19"-3U), it can also be used as a stand-alone instrument remotely controlled by a PC.  Due to its high performance and low cost, B10 is an optimum solution for laboratories, test houses and electronic equipment manufacturers.

 

Its dual processor architecture and its high resolution over-sampling A/D converters allow high accuracy and repeatability of measurements.

 

B10 is neither a spectrum analyzer nor a power analyzer modified for IEC555.  Its hardware and firmware architecture is specifically designed to meet the requirements of the relevant Standards.

 

The harmonic analyzer monitors two isolated input channels (one for current and one for voltage) at 50 or 60Hz; it can measure up to the 40th or 50th harmonic, computing FFT on 2048 points based on rectangular time-windows of 16 periods with no graphs or overlaps; the sampling rate is strictly synchronized to the fundamental, thanks to a two-stage PLL.

 

Very accurate dynamic limits management for Class C and D equipment is provided: for each time-window all necessary values are continuously computed to evaluate the actual limit values in real-time.  Moreover the possibility for some harmonics to override the limit up to 1.5 times, for maximum 10% each 2.5 min. period, is automatically achieved using a sliding mode technique.  Limits can also be defined by the user to allow testing at lower values (e.g. at 90% of the standard limits).

 

Both 'steady-state harmonics' and 'transitory harmonics' are measured; the specified smoothing filtering (t=1.5s) is a 1st order low pass digital filter and it is user selectable.

 

The measuring shunt is divided into different ranges: this is to ensure compliance both with the IEC1000-3-3 requirement that the maximum voltage drop in the measurement circuit does not exceed 150m Vp, as well as to allow the highest degree of measurement accuracy at low current levels.