Signal conditioning
why CP Automation increased its scope of supply by incorporating devices of fixed and portable meters to help customers measure supra-harmonics. Furthermore, the company offers a range of supra-harmonic filters to mitigate these issues.
The increasingly wide scope of harmonics poses an emissions testing challenge for many industrial facilities because many devices operate on entirely different frequency ranges. Futhermore, this is before we think about the various pre-existing residential and industrial regulations that must be met.
HOW CAN WE CLOSE THE GAP? The harmonics and EMI gap is challenging, but removing blind spots in emissions testing capabilities is a great way of overcoming it. This means knowing where each device sits on the frequency spectrum and identifying an appropriate system to mitigate noise. Operators can install filters to prevent the distortion of nonlinear loads at the source, whether this is a VSD or another device. Active filters monitor and inject currents to help mitigate harmonics, and or passive filters to filter drives in VSD systems. Working with an experienced power quality specialist with knowledge of the entire frequency spectrum and who can recommend solutions for every point is also suggested. With Engineering Recommendation G5/5 now in force, businesses should also work with engineers proficient in power quality beyond the 50th order and use equipment that can measure beyond this level.
CP Automation offers a dedicated measure, analyse, report and solve (MARS) service. This involves its specialists capturing, reviewing, and analysing harmonics data before feeding it back to customers in the form of a detailed report. Its team can also provide solutions to solve these issues. Noise will always be a risk for industrial sites, but closing the gap in emissions testing and getting the right support can help mitigate noise across the spectrum.
CP Automation
www.cpa-ltd.net Instrumentation Monthly March 2023 35
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