METREL EurotestXC MI 3152 Instruction Manual page 124

MI 3152(H) EurotestXC (2,5 kV)
Measurement procedure

Enter the Z line m function.

Set test parameters / limits.
 Connect test leads to A 1143 – Euro Z 290 A adapter and switch it on.
 Connect A 1143 – Euro Z 290 A adapter to the instrument using RS232-PS/2 cable.

Connect test leads to the object under test, see Figure 7.46.

Start the measurement using

Save results (optional).
Figure 7.47: Examples of high precision Line impedance measurement result
Measurement results / sub-results
Z Line impedance
Ipsc Standard prospective short-circuit current
Imax Maximal prospective short-circuit current
Imin Minimal prospective short-circuit current
Imax2p Maximal two-phases prospective short-circuit current
Imin2p Minimal two-phases prospective short-circuit current
Imax3p Maximal three-phases prospective short-circuit current
Imin3p Minimal three-phases prospective short-circuit current
R Resistance of line impedance
XL Reactance of line impedance
Uln Voltage L-N or L-L
Freq
Frequency
Standard prospective short-circuit current I
230 ��
�� =
������
��
400 ��
�� =
������
��
or
is calculated as follows:
PSC
�� = 230 �� ± 10 %
where
��−��
�� = 400 �� ± 10 %
where
��−��
123
Tests and measurements
button.