NDB Technologies AE-150 - Moving the AE-150 to a New Location

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AE- 1 5 0 s y s t e m – U s e r M a n u a l

Moving the AE-150 to a new location

In order to obtain crossing vectors, the instrument must be installed at a

different location on the transformer tank. This new location can be on the

same tank wall or a different one.

Tip: Choose a new location according to the times of arrival on the

acoustic sensors. The goal is to get closer to the partial discharge

source. For example: If sensor #1 waveform arrived first, move the

AE-150 to the top and/or right side.

 Install the AE-150 at its new location.

 Make sure all four acoustic sensors have a proper layer of acoustic

couplant. Press on each sensor for an ideal coupling to the transformer

tank wall.

 Use a measuring tape to measure the new location (Center of the AE-

150 versus the tank origin point).

 Type the new position values (X, Y and Z) in Mirador Tx: AE-150

CONTROL > AE-150 Position > AE-150 vs. Tank Origin. From the Tank

Wall dropdown menu, select the tank wall on which the AE-150 is

installed.

 From the AE-150 Rotation dropdown menu, select the rotation of the

AE-150 instrument.

 If individual magnetic holders are used to install the acoustic sensors on

the tank wall, type their locations relatively to the center of the AE-150.

 Confirm the AE-150 position with the 3D representation in Mirador Tx

(Current position on tank graph).

 In the Controls tab, click the AUTO-SET button. This process may take a

few seconds, wait until completed.

 Repeat the PrPD Acquisition and Waveform Acquisition sections of this

manual in order to obtain new pinpoints and vectors. The goal is to get

a variety of vectors and pinpoints crossing each other. The

intersection represents the partial discharge source localization. To

achieve this, more than two locations may be required.