Technical description
9
1
Technical description
1.1
System description
Defects on medium and high voltage components not only require costly repairs, but
can also lead to failures of network sections with associated adverse consequences. It
is therefore in the interest of all network operators to be able to detect signs of imminent
defects as early as possible so as to take suitable countermeasures promptly.
Megger is offering a lightweight, robust and portable measuring device in the form the
PD Scan which allow a range of operating equipment to be examined quickly for partial
discharge signals.
The PD Scan is used for early detection of partial discharges in medium voltage
substations and other electrical operating equipment. The convenient device features
two internal sensors (TEV, airborne acoustic) for this purpose, and can also be operated
with a range of external sensors (TEV, HFCT, airborne acoustic, acoustic contact
probe). The device can be operated by using three soft buttons and by using the touch
display.
All components (sensors and accessories) which may be used with the PD Scan are
described in this manual. The product delivered to customers is, in fact, always a
customer-specific configuration. At present, four versions exist (“Basis” and “Pro”), each
housed in a special case.
The PD Scan combines the following features in one device:
•
Measurement of partial discharge signals (inductive, capacitive and acoustic)
•
Simple operation using a touchscreen or operating buttons
•
High-performance internal rechargeable battery enables long operating time
•
USB port
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Function testing
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Integrated camera
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QR code scanner
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Measured data evaluation
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Recording of the measured data and reporting using the MeggerBook Reporting
Edition
Intended use
Performance features
