48
Measurement of the dC voltage during the insulation test
Input impedance: 3M
W
up to 1,600V and 300M
W
thereafter.
Specified measurement
range (V)
40.0 … 99.9
100 … 1500
1600 … 5100
5100 … 16000
Resolution
0.1V
1V
1-2V
2-4V
Intrinsic uncertainty
±1%
Measurement of the dC voltage during the discharging stage of the insulation test
Specified measurement
range (V
dc
)
25 … 16000V
Resolution
0.2% Un
Intrinsic uncertainty
±(5% ± 3 pt)
typical discharge time of a capacitive element to reach 25V
dc
Test voltage
50V
100V
250V
500V
1000V
2500V
Discharge time (C at µF)
0.25 s x C
0.5 s x C
1 s x C
2 s x C
4 s x C
7 s x C
Test voltage
5000V
10000 V
15000V
Discharge time (C at µF)
14 s x C
27 s x C
57 s x C
typical curves of evolution of the test voltages as a function of the charge
500V range
V
0
100
200
300
400
500
600
1,E-02
1,E-01
1,E+00
1,E+01
1,E+02
1,E+03
1,E+04
1,E+05
1,E+06
10 k 100 k 1 M 10 M 100 M 1 G 10 G 100 G 1 T
W
10 k 100 k 1 M 10 M 100 M 1 G 10 G 100 G 1 T
