Signal conditioning
MINIMISING HARMONICS IN SMALL LOADS
SIGNAL
CONDITIONER WINS GOLD GERMAN INNOVATION AWARD
conditioner family with SIL 3. In the main category “Excellence in Business-to-Business”, the independent jury of representatives from the fields of business, design, and science chose Phoenix Contact as the Gold Winner for groundbreaking achievements in the industry.
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Power quality specialist CP Automation has expanded its range of active harmonic filtering technologies to include the REVCON Low Harmonic Supply (LHS) Active filter. Unlike many existing units, the new filter is specifically designed for small variable speed drives (VSDs) and is pre-configured to avoid the need for extra programming during set-up. It is also highly efficient and compact, meaning operators can maintain power quality while making the most of the space available in their facilities.
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he new REVCON LHS-Active filter is specifically designed for small applications and can support VSDs of up to 5.5 kW. It is equipped with pre- set internal software so that the current
transformers (CTs) and load are already built into the unit. Following installation, the operator just needs to input a power connection and take the output. As well as this, it sits in series without the load, avoiding the need for extra wiring, cabling and programming, which would normally be required in most filtering systems. By installing the new filter being in series, operators can set up multiple units across their site and distribute their harmonic reduction capability, rather than relying on one large filter. Meanwhile, its compact build ensures that minimal floor space is taken up. “The new LHS-Active filter is groundbreaking
because it tackles harmonics in loads far smaller than any existing solution,” explains John Mitchell, global sales and marketing director at CP Automation. “The new filter is also 99 per cent efficient and its power losses are extremely low at around 120 W, helping businesses keep their energy costs under control without compromising on power quality.” While many mitigation technologies use insulated-gate bipolar transistors (IGBT), the REVCON LHS-Active uses silicon carbide (SiC) power Metal–Oxide–Semiconductor Field-Effect Transistor (MOSFET) with Schottky diodes. This improves the filter’s low-loss capabilities and enables a switching frequency of 50 kHz, reducing total harmonic distortion (THD) from 35 per cent down to below five per cent.
CP Automation
www.cpaltd.net
he German Design Council has g iven the German Innovation Award to the new Ex i versions in Phoenix Contact’s slim 6.2 mm Mini Analog Pro signal
The signal conditioners offer explosion protection and functional safety in a compact design. The jury was also impressed by the space savings of up to 50 percent compared to current solutions. Measurement technology signals are reliably processed in this overall width, and the safety of personnel, the environment, and the system is simultaneously ensured. The products are consistently rated to the highest safety level, SIL 3 one out of one. The operating concept, configuration and monitoring app, communication gateways, digital tagging, and digital nameplate are particularly user-friendly and future-proof. The German Innovation Award recognises products, technologies, and services that break new, innovative ground and offer solutions that stand out for their added value for users and the environment. These forward-thinking innovations are possible in all industries and at all levels – whether industry giants or start-ups. The German Innovation Award offers equal opportunities to all those who drive innovation forward and brings their achievements to the attention of a wide audience.
Phoenix Contact
www.phoenixcontact.com
August 2023 Instrumentation Monthly
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