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Three Phase
Automatic TTR
The Three-Phase Automatic TTR is a fully
automatic instrument designed to measure the turns ratio of
power, distribution and instrument transformers. Deviations in
ratio, excitation current and phase angle all indicate
problems with the transformer.
TTR-100
Advanced Hand-Held TTR
The TTR100 is an advanced handheld,
robust, lightweight and battery operated instrument offering
functions such as winding resistance, polarity and phase angle
measurement functions.
TTR-25 Basic
Hand-Held TTR
The TTR25 is a basic, hand-held
Transformer Turns Ratio Test Set based on the full-featured
TTR100. It is a simple, push-to-test instrument with few
buttons and no menus.
TTR-20 Basic
Hand-Held TTR
The TTR20 is an automatic hand-held
battery operated transformer turns ratio test set. With an
excellent turn ratio of up to 10,000:1 and three output
voltages, it is ideal for measuring potential transformers,
current transformers as well as single- and three-phase
distribution and power transformers (tested phase-by-phase).
Single-Phase Hand-Cranked TTR
And, Megger still offers its rugged and
reliable hand-cranked TTR for measuring turn ratio up to
approximately 330:1.
Transformer Ohmmeter Winding Resistance and Tap-Changer Test
Set
This unique instrument uses a special
saturation technique resulting in a substantial reduction in
measurement time (by as much as 70% on large power
transformers).
CTER-91
Current Transformer Excitation, Ratio and Polarity Test Set
The CTER-91 test set is a lightweight,
portable unit for performing excitation, ratio and polarity
tests on current transformers using the voltage-comparison
method. |
