28400 pages

2840
High-Precision C, L & tan Measuring Bridge

FEATURES

Accuracy capacitance 0.02%, tan 1x10 -5

Additional signal analysis capabilities like
Spectrum Analyser, Digital Scope and Data
Logger are integrated

Advanced, well-engineered test equipment,
optimised to the specific application

Compact, reliable and EMC hardened design

Integrated solution with built-in industrial
computer

The Dielectric-Loss Analyzing System 2840 is
designed for measurement of very low dielectric
losses and impedances (Dissipation Factor and
Power Factor) of high-voltage apparatus (e.g.
extruded insulation on power cables).

BENEFITS

Easy to operate with Manual and Automated test
modes, Software assisted test preparation,
Execution and Trend analysis.

The instrument works on the principle of a
combined bridge-vector-meter and is capable of
analyzing capacitive and inductive loads –
especially shunt reactors – with outstanding
accuracy and stability certified by a leading
metrology institute.

Complete Measuring System including power
supplies, standard capacitors, current
comparators, test cells, application support and
calibration from one supplier.

Wide Application Range. Losses of all types of
insulation including shunt reactors under
unstable power frequency can be measured.

Upgrade - Outdated Tettex bridge models (e.g.
2877, 2801, 2821, etc.) can be easily replaced,
with existing cable sets.

The Graphical User Interface of the instrument is
highly intuitive, focussed on convenience with
built-in useful programs (e.g. support tool for
tuning the external High Voltage supply) and
uses a large colour touch screen as the input
device.
The operator can choose between manual or
automatic modes. 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, graphical
visualisation of measured data, etc. make this
instrument a powerful tool for analysis of highvoltage equipment.
The instrument incorporates standard interfaces
(e.g. USB) which enable easy exchange of
measurement results, related settings, etc. for
further analysis or reporting.

APPLICATIONS
Routine and type tests of

Others

Power Cables & Accessories

Shunt Reactors

Capacitors

Liquid or Solid Insulations

Instrument Transformers

Metrology
Institutes

Research &
Development

Bushings

a brand of
Haefely is a subsidiary
of Hubbell Incorporated.
Haefely has a policy of continuous product improvement. Therefore we reserve the right to change design and specification without notice.

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