Huazheng Electric Manufacturing Co.,Ltd
3
the nonlinearity of the Potential Transformer.
)
II. Main Functions and Characters
1. The tester makes automatic measurement with no need to set any
parameters and automatically completes the three-phase ratio and
connection group measurements with easy operation. All you need to do is
to press a button.
2. The tester measures three-phase and single-phase transformer ratios
automatically, and calculates the ratio error.
3. The tester has built-in three-phase signal source, which can make
measurement of Y / y, Y / d, D / y, D / d, ZN / y, ZN / d, rectifier transformer,
traction transformer and all kinds of ratios of transformer connection
groups.
4. The tester can measure transformer connection group label and polarity to
clearly display the first and second winding connection vector
. intuitive and
clear, the instrument comes with self calibration function, according to self
calibration results to determine the test line or instrument failure
5. The tester can track the transformer on-load tap-changer position
automatically, and indicate the current tap point automatically.
6. The tester can display a transformer
’
s first and secondary voltage
Oscillograms and phase relationship. It can measure transformer
’
s first
and second harmonic voltages, to facilitate the analysis of transformer
failure.
7. The tester is with CT, PT ratio, polarity testing function
8. The tester has perfect and reliable automatic protection, to ensure the
intactness of the tester under abnormal conditions.
9. The tester has small size and light weight. It makes accurate measurement at
fast speed (about 3 seconds to complete the test).
10. The tester is available to store and print all the test results. It has Built-in
128M memory (extendable to 4G memory card), available to export the
database by USB, or upload to computer. The database supports excel
