The Megger TTR100 is an automatic 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.
Deviations in the mentioned measurements will quickly
indicate problems in transformer windings or in the
magnetic core circuits.
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 the kneel or bend down 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 at 3.3 lb. (1.5 kg). It weights less
than any other commercially available instrument on the
market.
Its rugged and robust design makes this instrument well
suited for use in a variety of harsh environments. The
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.