Megger PD SCAN User Manual

PD SCAN

Handheld scanner for PD surveying in MV and HV plants

DESCRIPTION

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) and can also be operated with various types of external sensors (TEV, HFCT, airborne acoustic, contact probes).

The operation of the device is simple; 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, as well as bothersome browsing through individual screens, can be eliminated.

Thanks to the large variety of sensors, the PD Scan can be used for multiple application ranges. PD within the cable insulation can be detected using the HFCT sensor. Partial discharges in encapsulated switchgears can be measured by using the contact-probe sensor and corona and surface discharges in MV and HV systems can be identified with the parabolic acoustic sensor.

For fast verification of partial discharge activity in MV and HV plants

Universal application range, thanks to wide variety of sensors

Integrated camera and QR code scanner

Easy to use via keypad and touchscreen

Reporting via MeggerBook RE software

Besides the partial discharge sensors, also a temperature and humidity sensor will 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.

The variety of sensors have made this handheld scanner a unique measuring device. 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. Make life easier by reducing the number of loose cables in the workspace through using the optional (and comfortable) Bluetooth® headset, which can also be used with a helmet.

Establishing detailed and individual test reports can be performed quickly by using the supplied MeggerBook RE reporting software.

PD SCAN

Handheld scanner for PD surveying in MV and HV plants

TECHNICAL DATA*

PD SCAN

TEV Measurement (capacitive)
Measurement range	-10 … 80 dBmV
Bandwidth	2 … 80 MHz
Resolution	1 dBmV
Accuracy	±1 dBmV
Acoustic sensor
Measurement range	-10 … 70 dBµV
Resolution	1 dBµV
Accuracy	±1 dBµV
Transducer centre frequency	30, 40 und 80 kHz
HFCT sensor (inductive)
Measurement range	-10 … 80 dB
Bandwidth	100 kHz … 20 MHz
Resolution	1 dB
Accuracy	±1 dB/ < ±10%
Impedance	50 Ohm
Housing	Injection moulded
Display	3.5 inch touchscreen,
	320 x x240 pixel
Interfaces	Lemo (external sensors)
	USB type C (charging, headphone,
	PC) Bluetooth®
Control	via 3 soft keys and touchscreen
IP rating	IP 54
Temperature
Operation	-10 … 55 °C
Storage	-20 … 70 °C
Relative humidity	93 % at 30 °C
	(non-condensing)
Power supply
Charger	Input voltage 90 … 264 V,
	50/60 Hz
	Output voltage 5 V DC
Internal battery	Li-Ion 3.6 V / 3.35 Ah
Operating time	> 8 Stunden
Charging time	± 2 hours
Dimensions (W x H x D)
PD Scan	220 x 80 x 30 mm
Case STD	422 x 366 x 107 mm
Case PRO	512 x 445 x 313 mm
Weight
PD Scan	420 g
Case STD	940 g
Case PRO	3400 g

FEATURES

■Three PD measurement methods in one device

■Plug and Play; PD Scan automatically recognizes which external sensor has been connected

■Easy to use via soft keys and touchscreen

■Universal operating range due to large variety of sensor

■Automatic evaluation and interpretation of the results

■Optional comfortable Bluetooth® headphones

■Integrated camera

■QR code scanner for asset recognition

■Different views and PRPD display for defect type recognition

■Temperature and humidity measurement using supplied sensor with storage on PD Scan itself

■MeggerBook RE reporting software

■Use your own mobile device for wireless data transfer by USB OTG

PD Scan is available in four different

application-based sets.

PDK-PRO

PDK-STD

Set 1: Switchgear basic

The basic set is ideally suited for users who only want to concentrate on MV plant

Set 2: Switchgear basic + cable

The basic set + cable is ideally suited for users who want to concentrate on MV plant and cable

Set 3: Switchgear pro + cable

In addition to the HFCT and standard sensors, the pro set additionally contains external acoustic sensors for a more detailed analysis of MV plant

Set 4: Switchgear pro + cable + outdoor

The complete set for those who want to use all the functionalities of the device

*We reserve the right to make technical changes