Measurement Procedure And Results Of "P-Pe" Mode - MARTINDALE VR2250 User Instruction Manual

6.4.4. Measurement procedure and results of "P-PE" mode

1. Select P-PE mode by means of the F1 key.
2. Connect the Red, Green and Black connectors of the three-terminal mains cable or
of the split cables to the corresponding input terminals of the instrument B1, B3, B4.
Red
Instrument connection for P-PE test in a 230V
single-phase System
Instrument connection for P-PE in a 400V three-phase system without Neutral conductor
3. Connect the mains plug into a 230V 50Hz socket or the crocodiles to the
conductors of the three-phase system (see previous pictures).
4. The key F4 permits to select one of the following limit values for the contact
voltage (which can be shown cyclically when pressing the key):
50V (default).
25V.
START
5. Press the START key once to execute a test injecting a current in phase with
STOP
positive half wave of the voltage.
Press the START key twice to execute a test injecting a current in phase with
negative half wave of the voltage.
The P-PE measurement in a 230V System makes a test current of 6A approx.
This may cause the tripping of magnetic protection switch with nominal value
lower than 10A and will cause the tripping of RCD device. If necessary
perform the test upstream of the switch or RCD.
I
I
P
I1
B1 B2 B3 B4
Green Black
1
3
Red
Black
B1
CAUTION
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1
3
N
Black
B1
Instrument connection for P-PE in a 400V three-
phase system
Green
I1
B2 B3 B4
VR2250
Red
Green
I1
B4
B2 B3