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Advanced Partial Discharge Measuring System MPD 600
3 – Control panel. The control panel provides access to all measurement and display options.
4 – Large scope view. The large scope view shows the high-voltage curve(s) of the connected
acquisition units, as well as the phase-resolved histogram of the currently selected unit.
Alternatively, the large scope view may be used to view an overview diagram showing the
phase-resolved histograms of all connected acquisition units.
5 – Small scope view. The small scope view can be configured to show many curves: the
spectrum of the input signal at the PD input (DC through20 MHz), the time signal at the PD
input, trend curves for a variety of measurement quantities, and a replay log (in replay
mode).
6 – Measured quantities display. The measured quantities display shows the current values
for the quantities being measured, such as IEC 60270-conformant charge estimation,
voltage, high-voltage frequency, etc.
7 – Log area. The log area displays status and warning messages in user-readable form.
8 – System status bar. The status bar shows the initialization status of the software by means
of 5 LEDs. During startup of the software, the LEDs in the system status bar will be
illuminated in succession until all five LEDs are lit.
9 – Progress bar. The progress bar visualizes the progress of the current operation. This is
used, for example, to show the initialization progress of newly connected units. A message
to the left of the progress bar shows what specific operation is being performed (or “ready.”
if no operation is pending).
10 – Fiber optical status. This display, consisting of two LEDs, shows the integrity of the fiber
optical connections on the fiber optics controller. The left LED corresponds to the TX1 and
RX1 connectors, the right LED corresponds to the TX2 and RX2 connectors. The LEDs
turn green when the FO connection is set up correctly, and red if the connection is made
incorrectly or if there is no connection. A yellow LED indicates that a temporary error was
detected on the fiber optical network.
3 Setting up the Software
• Use the mouse or keyboard to select the main menu item “Mode” in the top menu bar.
Then select “Basic” for the system’s operating mode.
• Make sure that the “Settings” tab is selected. Find the combo box labeled “Trigger
source” and select unit1.1 as the trigger source. If you are performing a calibration you
may also select “line” as trigger source. The system then uses a light-sensitive sensor to
synchronize itself to fluorescent light sources. Do not forget to change the trigger source
back to unit 1.1 before performing the actual measurement.
• Select the fCenter (center frequency) box and enter a value of 350kHz.
• Select a bandwidth of 300kHz. This center frequency and bandwidth configuration sets
up the measurement system for an IEC60270-compliant measurement.
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