WCA November 2010

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Testing and measuring
Wire & Cable ASIA – November/December 2010 63
High-precision C, L & tan δ
measuring bridge
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.
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: Website:
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 •
Eldes snc – Italy Fax: +39 685 3222
Email: Website:
Dielectric-loss analysis from Haefely ❍ ❍
Measuring
device for
extrusion
nozzles
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.
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:
Website:
VisioCablePro from iiM AG ❍ ❍