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2. AE measurement:
The AE sensor at the front of host shall be aimed at the gap of the measured equipment and
observe along the gap if the AE data and waveform changes, then read and record the data.
3. TEV external synchronization measurement:
External synchronization module can be added for testing when finding the suspicious
discharge signals and further measurements are needed. And then check the synchronization of
waveform and the Q-
Φ
-T diagram. The figure below shows the relation between the quantity of
electricity, phase and time.
Select the external synchronization in parameter settings, and red rectangle-frame prompt will
appear in the state indicator bar upside the equipment; then the external synchronization module
shall be connected with the 220VAC of the same power of the measured equipment. Then the signal
output end of the module is connected with the external synchronization interface of the main
engine using the special signal line; the red prompt rectangle in the state indicator bar upside the
equipment will disappear. The main engine shall be perpendicular to the surface of the equipment
being tested so that the front-end TEV sensor can place on the surface of high-voltage equipment,
and then test the suspicious discharge locations to observe the changes of data and waveform as
well as Q-Φ-T diagram with cooperation of synchronous frequency regulation, and then further
analysis and judgement are carried out to determine whether it is a discharge signal.
