precision.
r
eliable.
HIGH V O L T A G E
T E S T S OLUTION S
HiAS
TM
744
HIGHEST RESOLUTION IMPULSE ANALYZING SYSTEM
www.haefely-hipotronics.com
1962
1983
KO 72
HiAS
TM
743
1990
2002
HiAS
TM
740
HiAS
TM
742
HiAS
TM
744
Impulse Analyzer
2
HiAS
TM
SERIES
– PIONEERING!
IMPULSE ANALYZER
Application
Dielectric tests with impulse voltage are
done to confirm the quality of insulation
for HV equipment and are mandatory as
per international standards. A defined im-
pulse wave shape is applied to the test
object and changes in the wave shape
caused by the test object are used for de-
tection of insulation faults. Determining
these changed parameters exactly makes
it absolutely necessary to have a fast and
accurate measuring system. This proce-
dure is commonly used for routine test-
ing of transformers, cables, bushings, etc.
Unique device - Tailor made for the industry
HAEFELY HIPOTRONICS, the pioneer
company for impulse testing since 1904,
has been continuously developing and up-
grading tailor made high-voltage impulse
measuring/analyzing solutions over the
years. The latest in a long line of distin-
guished impulse analyzers is the Highest
Resolution Impulse Analyzing System
HiAS
TM
744. HAEFELY HIPOTRONICS has
set a new benchmark with unmatched
performance. The new front-end solution
provides a 16-bit resolution at 250 MS/s
with the highest measurement accuracy.
Software, which has been upgraded to suit
the new hardware, retains the comfortable
interface proven and tested by over hun-
dreds of satisfied users. Furthermore, it re-
mains compatible with all previous versions
of HiAS
TM
data files, allowing for compari-
son to older measurements.
Galvanic isolation
The optically decoupled front end provides
complete galvanic isolation between con-
trol room and test field. It thus affords the
personnel the highest safety level and in ad-
dition minimizes ground loop, resulting in a
reduced interference coupling.