90
UMG 511
Voltage measurement
The voltage measuring inputs are suitable for the following grids of power supply:
Three-phase 4 conductor systems with nominal voltages till
417V/720V (+10%)
Three-phase 3 conductor systems with nominal voltages till
600V (+10%)
The voltage measuring inputs regarding safety and reliability reasons are dimensioned as follows:
Overvoltage category
600V CAT III
Measurement surge voltage
6kV
Measuring range L-N
0
1)
.. 600V
rms
Measuring range L-L
0
1)
.. 1000V
rms
Resolution
0.01V
Crest factor
1,6 (relating to 600V
rms
)
Impedance
4MOhm/phase
Power consumption
ca. 0.1VA
Scanning frequency
20kHz/phase
Transients
50µs
U
din
2)
acording to EN61000-4-30
100 .. 250V
Flicker range (dU/U)
27.5%
Frequency of fundamental oscillation
15Hz .. 440Hz
-
Resolution
0.001Hz
1)
The UMG511 can only ascertain measurement values when a measurement voltage higher than 10Veff L-N or
18Veff L-L is applied to at least one voltage measurement input
2)
U
din
= agreed input voltage according to DIN EN 61000-4-30
Содержание UMG 511
Страница 73: ...73 UMG 511 ...
Страница 98: ...98 UMG 511 Dimensional drawings Cut out size 138 0 8 x 138 0 8 mm Back Patch cable ...
Страница 99: ...99 UMG 511 Side view View from below ...