NDB Technologies AE-150 User Manual
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NDB Technologies AE-150 User Manual

Partial discharge localization system
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NDB TECHNOLOGIES INC.
AE-150 – Partial Discharge Localization System
MU012-GEN-ENG Version 3.0
AE-150
User Manual

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  • Page 1 NDB TECHNOLOGIES INC. AE-150 – Partial Discharge Localization System MU012-GEN-ENG Version 3.0 AE-150 User Manual...

  • Page 2: Table Of Contents

    Operation ......................... 16 Initial setup ......................17 PrPD Acquisition ....................19 Waveform acquisition ..................22 Moving the AE-150 to a new location ..............25 Data selection ...................... 26 Localization ......................26 Create a report ......................27 Additional features ....................27 Monitoring ......................
  • Page 3 Main unit overview ....................40 Appendix 3: Mirador Tx detailed ................44 Test file ........................ 44 General view ......................44 AE-150 control side tab ..................44 Data Analysis side tab ..................49 Appendix 4: UHF Antenna ..................57 Installation ......................58 Appendix 5: Flexible UHF Antenna ................

  • Page 4: Contact Us

    Safety Warnings Follow all the safety rules to avoid dangerous electric shocks. Only properly trained personnel should operate the AE-150 instrument. Safety is the responsibility of the user.  Read all safety and operating instructions before using the equipment.

  • Page 5: Safety Precautions

    M a n u a l Safety Precautions  Do not use the AE-150 instrument in an area with risks of explosions.  Stand clear of all parts of the high-voltage circuit, including all connections, unless the test set is de-energized and all parts of the test circuit are grounded.

  • Page 6: Overview

    The AE-150 main unit is mounted on the transformer tank using its powerful magnets that will hold the four acoustic sensors firmly against the tank wall.

  • Page 7: Inspection Method

    A E - 1 5 0 s y s t e m – U s e r M a n u a l Inspection method The following sequence summarizes the inspection method covered in this manual. It is recommended to follow this sequence in order to obtain optimal results.

  • Page 8: Installation

    On the transformer tank, determine an origin point location from which X, Y & Z axis will start from (next figure configuration suggested). The tank dimension measurements, origin point and axis will be used in Mirador Tx software to locate the AE-150 position on the tank.

  • Page 9: Preliminary Setup

    (near the AE Channel 2 connector). Install the communication antenna (yellow stripes) on the proper antenna connector (near AE Channel 1 connector). Note: The antennas must be installed at all time while using the AE-150, even if hardwired communication is used.

  • Page 10: Communication Setup

    (maximum distance: 30m/100ft) to ensure good wireless communication. Note: Alternatively to standard wireless method, the user could synchronize both modules by connecting a BNC to BNC coaxial cable from the AE-150- SYNC module (Sync Out connector) to the AE-150 main module (Phase In) or...

  • Page 11: Pd Channel

    – U s e r M a n u a l avoid using the AE-150-SYNC and connect the AE-150 Phase In connector to a synchronized low voltage signal (ex: coupler output). See technical specifications for more details. PD channel In order to localize partial discharge, an electric type sensor must be connected to the AE-150 PD channel.
  • Page 12 M a n u a l UHF antenna The AE-150 can measure partial discharge activity directly from inside the tank with great immunity to ambient noise using the UHF antenna. This antenna is typically used on straight type transformer drain valve. For more detail, see the Appendix 4 section of this manual.

  • Page 13: Ae-150 Installation

    M a n u a l AE-150 installation Rotation The AE-150 instrument can be installed in any of the following rotations: 0° (default), 180°, 90° counter-clockwise or 90° clockwise. Note the chosen rotation as it will be used in Mirador Tx software.
  • Page 14 M a n u a l Installation on the transformer tank wall Install the AE-150 on a wall of the transformer tank. Its location must be measured from the tank origin point to the center of the AE-150 instrument (middle of the indicator cross). Keep the values for later as they will be used in Mirador Tx software.
  • Page 15  Apply acoustic couplant on each acoustic sensor. Refer to the Acoustic couplant section of this manual for more detail.  Install the AE-150 on the transformer tank (only one wall at a time) with the magnetic holders.

  • Page 16: Operation

    U s e r M a n u a l Operation The Operation section of this manual describes how to operate the AE-150 with Mirador Tx software. The flowchart below summarizes the operations covered in this section of the manual.

  • Page 17: Initial Setup

    Start software  Use the provided compact disc to install Mirador Tx software on your computer (or contact ndb Technologies to obtain the latest version).  Once installed, start Mirador Tx software and click Create New to create a new file.
  • Page 18 AE-150. AE-150 position  Click the AE-150 Position tab.  Type the previously measured location of the center of the AE-150 from the tank origin point.  Select the tank wall on which the AE-150 is installed. ...

  • Page 19: Prpd Acquisition

     Click the Controls tab.  Click the AUTO-SET button. The AE-150 will set the acoustic channels gain automatically. This process can take a few seconds, wait until completed.  Click the Pre-set Configuration dropdown menu.
  • Page 20 From the channel area, inspect all five channels to visualise PrPD patterns (AE1, AE2, AE3, AE4 and PD). If no pattern of interest can be found, it is recommended to move the AE-150 to another location, either on the same tank wall or on another wall, and retry a PrPD acquisition.
  • Page 21 A E - 1 5 0 s y s t e m – U s e r M a n u a l  Use the Occurrences slider (right side of the PrPD graph) to facilitate identification of a pattern of interest in the PrPD graph. The acquired signal color will vary along with the number of occurrences.

  • Page 22: Waveform Acquisition

    (PD and acoustic) is critical as it will be used for partial discharge source localization.  Click the AE-150 CONTROL side tab, and then, the Controls tab. Note: At this step, the gain adjustment (Auto-Set button) should have been done already. See PrPD Acquisition section of this manual.
  • Page 23 A E - 1 5 0 s y s t e m – U s e r M a n u a l  To confirm signal denoising qualification, click on the Measurement tab, and then check the Signals Qualification section. Refer to next figure as an example.
  • Page 24 A E - 1 5 0 s y s t e m – U s e r M a n u a l Pinpoints and vectors Note: Up to four pinpoints and four vectors can be created with five de- noised signals.

  • Page 25: Moving The Ae-150 To A New Location

    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.

  • Page 26: Data Selection

    A E - 1 5 0 s y s t e m – U s e r M a n u a l Data selection Once many vectors and pinpoints are taken and accepted, a common crossing point should appear and become obvious. Despite this fact, some pinpoints and/or vectors could be away from the common crossing point.

  • Page 27: Create A Report

    Monitoring strategy Define a monitoring strategy prior to start any investigation. As the AE-150 could be installed for days, it is recommended to maximize its coverage to reduce monitoring time.
  • Page 28 For smaller tanks (tap changer, small transformer, etc.) the AE-150 can be installed with standard sensor layout (all four acoustic sensors are attached to the AE-150 main module). This method can also be used for medium to large transformers, but would require more iterations to monitor the whole tank.
  • Page 29 Enter the transformer information (Transformer tab).  Set the communication (Communication tab).  Set the AE-150 location on the transformer tank to X=0, Y=0, Z=0 (AE- 150 position tab).  Set each sensor location from the origin point (AE-150 position tab).

  • Page 30: Auto-Loc

    Proceed with a manual PrPD acquisition in order to determine the trigger window to use. Refer to PrPD acquisition section of this manual. Operation  Click the AE-150 Control > Controls tab.  Click the Auto-Loc tab.  Click the Start Auto-Loc button.
  • Page 31 A E - 1 5 0 s y s t e m – U s e r M a n u a l Several operations will be automatically performed, the current process being displayed in the Auto-Loc section. The internal process and data transfer progression can be seen from the progress bar.

  • Page 32: Battery

    Battery replacement When the battery life is getting to its end, the instrument autonomy may be reduced. Contact ndb Technologies to return your AE-150 instrument to the factory for battery replacement. Replacing the battery yourself represents a risk of damage to the instrument, a risk of injury and will void warranty.

  • Page 33: Technical Specifications

    A E - 1 5 0 s y s t e m – U s e r M a n u a l Technical specifications Note: Specifications can change without notice. Dimensions & Weight Dimensions 396 x 371 x 140 mm (15.6 x 14.6 x 5.5 inches) 396 x 442 x 140 mm (15.6 x 17.4 x 5.5 inches) (with antennas) Weight...
  • Page 34 A E - 1 5 0 s y s t e m – U s e r M a n u a l Inhibition Channels Specifications Number of Channels Input range -5V to +5V (TTL) Comparison threshold Selectable Associated Logic Acquisition Enable, Acquisition Inhibit.

  • Page 35: Appendix 1: Kit Content

    – U s e r M a n u a l Appendix 1: Kit content Item Part number Description Illustration AE-150 main unit with AE-150 four acoustic sensors Wireless AE-150-USB communication module AE-150- Phase synchronization...
  • Page 36 A E - 1 5 0 s y s t e m – U s e r M a n u a l AE-150- Serial RS232 RS232 communication cable Male-male- WIR-C-001 coaxial cable RG58 25ft / 8m Serial RS232 extension...
  • Page 37 A E - 1 5 0 s y s t e m – U s e r M a n u a l AE-150- PACK & Battery charger PS007 PAI-X-003 Acoustic couplant TOOL-094 Measuring tape BOX-070 & Carrying case DAND154...

  • Page 38: Optional Magnetic Probe Holder Kit

    – U s e r M a n u a l CAL-CERT- Calibration certificate AE-150 Optional magnetic probe holder kit This section describes the optional magnetic probe holder kit content (kit part number: AE-AH-KIT). Item Part number...

  • Page 39: Accessories

    20mm / 0.8 in High frequency current transducer HFCT-60 clamp 60mm / 2.4 inches AE-150-UHF- UHF antenna set for AE-150 AE-150-UHF- Flexible UHF antenna FLEX-KIT set for AE-150 Optional 60 kHz ACC-055 acoustic sensor for the AE-150...

  • Page 40: Main Unit Overview

    5- Removing handles: The removing handles are used to disengage the AE- 150 from the transformer tank. 6- Carrying handles: The carrying handles are used to carry the AE-150. 7- Bottom connector section: See point 21 to 26 of this section.
  • Page 41 A E - 1 5 0 s y s t e m – U s e r M a n u a l 8- Progress bar: Shows the progress of an operation and other specific messages. 9- Battery indicator: This indicator displays the status of the battery level. ...
  • Page 42 15- Data communication antenna (yellow stripes): This antenna provides a bidirectional link between the AE-150 and the computer through the wireless communication module. 16- Acoustic channel 1: Input BNC connector for acoustic sensor #1.
  • Page 43 UHF antenna or another appropriate transducer (see specifications). 23- Charger port: 12 Volts DC input for battery charging. The AE-150 can be used with the battery charger connected. The battery automatically charges when the charger is connected. Typical recharge time is 3 hours.

  • Page 44: Appendix 3: Mirador Tx Detailed

    AE-150 control side tab The AE-150 CONTROL side tab includes the controls to operate the AE-150 system from the computer. The left area features a graphical representation of the transformer tank with 360°...
  • Page 45 AE-150 main module. It is greyed out when no synchroniszation is available. Battery icon: The battery icon displays the AE-150’s battery level. Transformer tab: The Transformer tab is used to type the transformer information such as : ...
  • Page 46 AE-150, if applicable. AE-150 position tab: Used to type the AE-150 position on the transformer tank. The AE-150 can be installed on any tank wall, at any rotation between 0°, 90°, 180° or 270°, and the detached acoustic sensors location can be entered.
  • Page 47 A E - 1 5 0 s y s t e m – U s e r M a n u a l Controls tab: Used to configure and start PrPD or Waveform acquisition, adjust acoustic sensor gain, use monitoring mode, use Auto-Loc mode, configure inhibition channels and configure filters and pre-amplification levels.
  • Page 48 A E - 1 5 0 s y s t e m – U s e r M a n u a l Controls tab => Channels: Used to select trigger channel and adjust acoustic channel gains.  Trigger Channel: Select the channel on which the instrument must trig (PD is preferred).

  • Page 49: Data Analysis Side Tab

    A E - 1 5 0 s y s t e m – U s e r M a n u a l Controls tab => Accessories: This tab contains the inhibition and pulse generator channel parameters:  Inhibition channels: The two Inhibition Channels are inputs used to detect events such as a running pump or a running motor.
  • Page 50 Results and Preview windows. Select the desired Sensors Position or click Select All to select all sensor positions. A three dimensional representation is present with all selected AE-150 positions represented by the four acoustic sensors. ...
  • Page 51 A E - 1 5 0 s y s t e m – U s e r M a n u a l select all items or manually select all items to keep. Click the Keep or Drop button to keep or drop the selected items. The items that were kept will be displayed in the 3D localization graph.
  • Page 52 A E - 1 5 0 s y s t e m – U s e r M a n u a l available to adjust the graphical view (acoustic and PD), refer to the information below: Center cursor: Click the ‘’cursor home’’ buttons to bring the cursor to center of current window.
  • Page 53 A E - 1 5 0 s y s t e m – U s e r M a n u a l  Waveforms => Display tab: The check boxes AE1, AE2, AE3, and AE4 are used to select the data to be displayed in the AE Signals graph.
  • Page 54  3D transformer tank representation: The 3-dimensional graph representation of the transformer tank displays the tank outline with the four AE-150 acoustic sensor locations.  Amplitude/Phase angle graph: The Amplitude/Phase angle graph displays one acoustic or PD channel acquired data. To change the displayed channel, select a different bullet just above the graph (AE1, AE2, AE3, AE4 or PD).
  • Page 55 A E - 1 5 0 s y s t e m – U s e r M a n u a l directly deducted from a distribution of pulse amplitudes.  Qpeak: Magnitude of the highest discharge measured in the PrPD acquisition. ...
  • Page 56 A E - 1 5 0 s y s t e m – U s e r M a n u a l  Analysis: Enter a custom value for sound velocity in Oil and in Steel, or click the Default button to set default values: 1420m/s in oil and 5200m/s in steel.

  • Page 57: Appendix 4: Uhf Antenna

    A E - 1 5 0 s y s t e m – U s e r M a n u a l Appendix 4: UHF Antenna Safety Warnings Follow all the safety rules to avoid dangerous electric shocks. Only properly trained personnel should use the UHF Antenna.

  • Page 58: Installation

    A E - 1 5 0 s y s t e m – U s e r M a n u a l Installation Preparation  Flange installation 1. The tank valve must be closed. 2. Remove the pipe stopper. 3.

  • Page 59: Appendix 5: Flexible Uhf Antenna

    A E - 1 5 0 s y s t e m – U s e r M a n u a l Appendix 5: Flexible UHF Antenna Safety Warnings Follow all the safety rules to avoid dangerous electric shocks. Only properly trained personnel should use the UHF Flex Antenna.

  • Page 60: Installation

    A E - 1 5 0 s y s t e m – U s e r M a n u a l Installation Preparation  Install the camera display and check proper working.  Install the adapter: 1. The tank valve is closed. 2.
  • Page 61 4. Close tank pipe valve. 5. Open the purge tube valve to bleed the oil from the tank pipe valve adapter. 6. Unscrew the adapter fitting and remove the antenna. 7. Remove the adapter and replace the pipe stopper. ndb Technologies 2017...

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