Power quality clamp meter for variable speed drives commissioning
09 January 2007
Fluke has introduced what it believes is the world’s most advanced power quality clamp meter (PQCM) for technicians and engineers installing and commissioning variable frequency drives, UPS systems, lighting and other switching loads which can be difficult to measure and monitor. The new Fluke 345, with a CAT IV 600V safety rating, accurately measures AC/DC voltage, current and power, even with distorted waveforms. It verifies batteries, troubleshoots harmonics up to the 30th, investigates nuisance tripping due to inrush currents with a special Inrush mode, and measures peak currents up to 2000A without the need to break the circuit.
The 345 features a large, colour display with a user interface which offers enhanced ease-of-use. Data can be displayed numerically, graphically or as a bar chart. The tool offers long term logging to identify the most intermittent faults, with the capability of fast downloading to a PC via a USB port. Easy-to-use Fluke Power Log software included within the comprehensive set of accessories provides powerful analysis of graphs and generation of reports.
The 345 is particularly useful for measuring distorted ac and dcC currents when commissioning variable speed drives, for quantifying energy consumption before and after installation of energy saving devises, for uncovering harmonic issues which can damage or disrupt critical equipment, and for monitoring inrush currents which may cause circuit breaker tripping during motor start up.
As well as the Power Log software, the 345 includes voltage leads, clips and probes, a USB interface cable and a soft carrying case.
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