Description
The Megger TTR100 is an automatic
single-phase handheld, battery operated transformer turns ratio test
set used to measure the turns ratio, excitation current, phase
displacement, dc resistance and polarity of windings in single- and
three-phase distribution transformers (tested phase by phase),
potential & current transformers, and tapped transformers.
The unique design of the
TTR100 allows the user to operate the test set while holding it in
one hand. No other transformer test set offers this capability. It
effectively eliminates the user from having to kneel or bend over to
operate the instrument and speeds up testing time.
Realizing the extreme
environments in which the TTR100 must operate, special attention has
been paid to making it extra rugged, with a high impact, shock
resistant case, yet incredibly lightweight (3.3 lb). It weights less
than any other commercially available instrument on the market.
TTR100 is particularly
suited for testing in substations and transformer-manufacturing
environments where testing
single and three-phase transformers can be performed. The TTR100
provides reliable results, helping the user in
determining the condition of the transformer under test. It features
a high contrast LCD screen which can be seen in bright or ambient
light.
The TTR100 comes equipped
with specially designed leads which provide the necessary
flexibility needed in all weather conditions.
This unit measures the
highest turns ratio in the industry with an accuracy of 0.1% or
better and with the lowest
excitation voltage. No other instrument’s performance is comparable
that is commercially available today. Another
excellent feature of this TTR is the ability to accurately measure
phase deviation (in minutes or centiradians) of
the transformer primary versus secondary.
This measurement is also
useful in verifying phase errors in PTs and CTs. The TTR100 features
special software capabilities. It comes equipped with sufficient
onboard memory to store up to 200 test results (including test
report header information) in the field for later retrieval, as well
as 100 user-defined transformer settings.
Test results can be printed
on an optional serial printer whenever a hard copy is desired, or
the data can be downloaded to a PC. Identification of individual
test readings is also easily done. The system software allows entry
of the transformer alphanumeric serial number, transformer type and
tap information (numerical, alphabetical, or alpha-numerical) for
each test performed.
The TTR100 comes with a Windows® based
software program that permits download of test data from the
instrument to a PC database. Data stored in the database can be
retrieved at a later date and test reports can be printed to assist
in the preparation of management and/or
analysis reports. These reports are easily transmitted via email. |
