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FEATURE TEST & MEASUREMENT


NEW CURRENT CLAMP WITH ULTRA-SLIM PINCER HEAD


With the Voltcraft VC-337, Conrad Electronic offers what it claims to be the first current measuring clamp with an ultra-slim clamp head


U


sers who choose the VC-337 are able to grip individual wires between the


cable duct and terminal blocks much more easily than with conventional clamps, and are well equipped for taking measurements on dense wire installations in control cabinets. “While the wire to be measured has to


be pulled out of the cable duct when using other current clamps, the VC-337 simply grips between adjacent wires. This is possible because the measuring gap of the clamp has a diameter of 5.5mm, and the tool can be positioned at an angle. Therefore, the VC-337 is suitable for cables with a cross section of up to 6mm²,” says Harald Lehner from Voltcraft at Conrad Electronic. He adds: “The VC-337 current


measuring clamp offers the best compromise between the size of the clamp jaw and the safety class with the appropriate insulation. “In practice, a proven beneficial


feature is the clamp open-limiting stop which prevents cables from getting too deep into the clamp’s mouth and being crushed as a result. Thanks to the two-component housing, the handy measuring device is also suitable for harsh environments, and the rubberised housing shell ensures a secure and comfortable grip.” The Voltcraft VC-337 with 4,000


counts complies with the measurement


categories CAT II 600V and CAT III 300V and is suitable for non- contact measurement of direct and alternating currents from 0.001 to 40A. The true-RMS


measurement of the current clamp allows the exact measurement of asymmetrical voltages and currents that deviate from the basic shape of the sine wave. Asymmetrical voltages most commonly occur in power regulators such as dimmers, speed controllers, switched- mode regulators, pulsed chargers or electronic controls. Conventional


average value measuring devices sometimes show very large measuring errors in such special measuring tasks. As part of quality assurance, all


Voltcraft measuring devices are calibrated in production according to factory standards. This ensures high


quality and compliance to the tolerance limits as specified in the technical data of the operating manual.


Conrad Electronic conrad.com


New order in the power line inspection area


Drone Volt has announced a new order from a major Swedish service company specialising in the inspection of power lines and telecommunications assets


T


he solution chosen by this new customer involves an Altura Zenith


which is a drone equipped with a very high technology camera that allows the evaluation of losses of current in a power line. Drone Volt can inspect low, medium and high voltage power lines through its


32 MARCH 2020 | ELECTRICAL ENGINEERING


efficient and cost saving solutions that enable industrials to reduce their greenhouse gas emissions. This initial order totals close to


€100,000 and could be followed by other substantial orders. “Our solutions offer major energy sector industrials a return on investment in only


a few months,” says Olivier Gualdoni, chairman/CEO of Drone Volt. “Additionally, they enable these industrials to reduce their carbon footprint, thereby enhancing the group’s status as a socially responsible enterprise.”


Drone Volt dronevolt.com 


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