User Manual

GMC-I Messtechnik GmbH 25
Direct Measuring Method:
DUT mains plug connected to the test socket
Figure 1/3: The DUT is operated with line voltage.
Protective conductor current is measured between the protective
conductor at the mains and the protective conductor terminal at
the DUT via the DUT’s mains cable.
Differential Current Measuring Method:
DUT mains plug connected to the test socket
Figure 2/3: The DUT is operated with line voltage.
Differential current is measured between mains conductors L and
N (current clip concept).
Alternative Measuring Method (equivalent leakage current)
DUT mains plug connected to the test socket
Figure 3/3: After activating test voltage, leakage current is mea-
sured via the DUT’s mains cable between short-circuited mains
conductors L and N and the protective conductor terminal at the
DUT.
Setting Measuring Parameters for IPE
Direct Selection – Setting the Measurement Type
Measuring Parameter Meaning
Measurement type
Direct Direct measuring method (via test socket)
Differential Differential current measurement
Alternative Equivalent leakage current measuring method
Polarity – for direct and differential measurement type only
L/N or N/L Selection of test voltage polarity
U(set) – for alternative measurement type only
110 V, 115 V,
220 V, 230 V, 240 V
Selection of line voltage as test voltage
Frequency – for alternative measurement type only
48 Hz to 400 Hz Selection of line frequency as test frequency
Measuring
Parameters
Meaning
Measurement type
Direct Direct measuring method (via test socket)
Differential Differential current measurement
Alternative Equivalent leakage current measuring method