WCA November 2010

Testing and measuring

High-precision C, L & tan δ measuring bridge

Measuring device for extrusion nozzles

Thedielectric-loss analyzingsystem2840 fromHaefely isdesigned formeasurement of very low dielectric losses and impedances (dissipation factor and power factor) of high-voltage apparatus. The instrument works on the principle of a combined bridge-vector-meter and is capable of analysing capacitive and inductive loads – especially shunt reactors – with accuracy (capacitance 0.02%, tan δ 1x10-5) and stability.

Under the trade name VisioCablePro ® iiM AG delivers a wide range of mea- suring instruments and accessories for off-line measurement of geometrical cable features. With these instruments it is possible to automatically determine and evaluate wall-thickness, diameters, cross sections and centricities on the extruded isolation, enabling archiving for later reference when necessary. Extruding tools and nozzles influence the quality of the finished cable. Therefore more users are looking to determine the geometry of the nozzles and record the wear with the necessary precision. The dimension and form of the nozzles influence the concentricity and roundness of the product.

Dielectric-loss analysis from Haefely ❍ ❍

The graphical user interface of the instrument is highly intuitive, focused on convenience with built-in useful programs, and uses a large colour touch screen as the input device. While the manual mode provides quick measurements, the automatic test mode supports complete automated test sequences. Advanced software functionalities such as insulation temperature correction, programmable test sequences with pass/fail limits or graphical visualisation of measured data, make this instrument a powerful tool for analysis of high-voltage equipment. The instrument incorporates standard interfaces (such as USB) that enable easy exchange of measurement results and related settings for further analysis or reporting. Haefely Test AG – Switzerland Fax : +41 61 373 4912 Email : sales@haefely.com Website : www.haefely.com Mobile quality control station Eldes snc has introduced the Themis 2K, a compact, mobile quality control station. Fitted with practical wheels for easy movement, the unit can be equipped with rechargeable lead batteries and charge system, and the PC can be connected by Wi-Fi to the laboratory. The unit houses an interface box for callipers, micrometers or comparators, connected through an RS232/USB port or by connection with an optical system. Themis 2K is equipped with an industrial PC and touch screen monitor with allotted spaces for keyboard, mouse, barcode reader and printer. Specification: Cabinet dimensions: 58.5cm x 155cm(h) x 60cmwith pivoting wheels of 200mm • diameter Power supply: 220V (standard) or rechargeable lead battery and charge • system PC: Industrial PC, minimum Intel Celeron 1.5, HD 80GB or compact flash silicon • system 2GB, OS Windows XP embedded or XP Pro Monitor: Industrial 15" touch screen monitor, resolution 1024x768 pixels • Software: Eldes’ Themis software for collection of dimensional measurements •

VisioCablePro from iiM AG ❍ ❍

The nozzle measuring instrument VisioCablePro ExtrusionTools from iiM AG will deliver this precision. Different forms and variations, such as stainless steel nozzles or nozzles with an inner diamond ring, can be measured optically with ease. Differentdiametersandformdivergences are calculated and assigned to the specific tools. This allows for the amount of wear to be monitored at any time and appropriate steps can be taken when necessary. In addition, there are valuable process statements and possibilities to compare different tool technologies. VisioCablePro ExtrusionTools works in parallel with a VisioCablePro using the available cable measuring software or independently, in a separate workplace. iiM AG – Germany Fax : +49 3693 88585 11 Email : info@cable-measurement.de Website : www.iimag.de

Eldes snc – Italy Email : info@eldes.net

Fax : +39 685 3222

Website : www.eldes.net

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Wire & Cable ASIA – November/December 2010