The Megger 1011124 Switchgear Pro + Cable + Outdoor Set 4 is ideally suited for users who want to use all functionalities of the PD Scan. Defects in medium and high voltage systems not only require costly repairs, but can lead to failures of network sections with corresponding consequences. Therefore, it is in the interest of all network operators to recognize signs of impending defects as early as possible and to be able to take appropriate countermeasures on time.

With the PD Scan, Megger offers a lightweight, robust and portable PD scanner that can quickly inspect various types of equipment for partial discharge signals. The PD Scan is used for the early detection of partial discharges emanating from defects in medium voltage switchgears and other electric equipment. For this purpose, the device has two internal sensors (TEV, airborne acoustic). The PD Scan Pro + Cable Set 3 includes the main unit, an external TEV sensor for localizing partial discharges, a temperature and humidity sensor, an HFCT sensor for online PD measurements on the cable, flexible acoustic sensor, and acoustic contact probe.

Intuitive Operation, Just Like a Smartphone

The operation of the device is simple. Not only does the auto-recognition of the sensors simplify the handling of the device, the end user will also be pleased about the simplicity of operation and presentation of the measurement results. It can be controlled via the three soft keys as well as via the intuitive touch display. Thanks to the auto-recognition of the connected external sensor, malfunction operation can be eliminated. Using functions such as short or long press on the display enables shortcuts within the software and saves the user from bothersome browsing through the individual menus. The user can fully concentrate on the more important measuring.

Wide Range of Applications

Thanks to the variety of sensors, the PD Scan can be used for a wide variety of applications. Primarily, the device was developed to determine the condition of MV-switchgear, for which purpose internal and external sensors are available. If, for example, users have encapsulated switchgear, the included acoustic contact probe sensor is the best choice. For air-insulated switchgear, the acoustic sensors are the best way to go.

Secondly, the PD Scan can also be used for PD detection in medium voltage cables. This permits users to get a quick overview of the condition of the cables and offline PD measurements can thereafter be scheduled. For this purpose, the included detachable HFCT sensor simply has to be connected around the earth screen of the cable and connected to the device.

Even outdoors, the PD Scan is a useful tool, with the help of the parabolic acoustic receiver with integrated laser pointer (sold separately), MV and HV components can be precisely checked for surface discharges and corona. In addition the Bluetooth headphones facilitate the work considerably as no cables can twist, and they can also be used with a helmet.

Besides the partial discharge sensors, a temperature and humidity sensor will also be supplied. This is very important as the temperature and humidity can have a significant impact on the partial discharge readings. One of the advantages of the PD Scan is that the sensor is connected directly to the device, meaning data is stored within the test files, removing the need to manually add them later on during the reporting stage.

Simple, Detailed Reports

Establishing detailed and individual test reports can be performed quickly by using the supplied MeggerBook RE reporting software. To support the end user, measurement data will be automatically evaluated and interpreted, and pictures of the identified defects can be made and directly integrated into the report by using the integrated camera. Furthermore, the QR code scanner can directly take over the switchgear/asset data; there is no need to inconveniently rename the folder for each different test object. Detailed reports can be made in the blink of an eye. Measured data can be displayed in clear, tabular formats and images taken with the built-in camera (or from other locations) can easily be added to it and commented on.

Say Goodbye to Maloperation

One of the goals of the development of this handy device was to minimize the number of connections. All in all, there are only two interfaces on the device that are responsible for everything. This was made possible thanks to the smart auto-recognition of the connected sensors. Faulty measurements due to operator error are a thing of the past.

If Condition is Okay, Users See a Smile

The user is also supported with the presentation of the measurement results. Measurement data is evaluated automatically, and feedback about the condition of the asset is provided visually by means of a smiley face and other ways. If the customer wishes other trending limits for the interpretation of the data, this can simply be individually customized.

An indispensable function of the device is the phase pattern representation, so-called PRPD pattern. By means of this view, the user can clearly identify whether the measured data is due to partial discharges or simply noise—a big but decisive difference.