V7.00
24905_EDEBD
A0272-5019-1_EN
63
System operation
NOTE
When connecting a multimess D4 additional module, the measuring voltage of this
module is automatically evaluated (three-phase measurement). The crucial factor is the
greatest measured voltage U
Ph-Ph
.
Example settings:
Cosphi1 1.0
Power consumption
Mode U
3
φ
t-delay
000 seconds
cosφ A
(bottom)
0.95 cap.
from 90%
to 95%
cosφ B (top) 0.95 ind.
from 105%
to 110%
U rated 400V Ph-Ph
Hysteresis
2.50% (=10V Ph-Ph)
Function:
In the event of a change in the measuring voltage in the 360 V to 440 V Ph-Ph range, the
target cos-phi will change from 0.95 capacitive to 0.95 inductive.
Example schematic diagram:
Un
U rated
von
from
bis
to
U Ph-Ph
Hyst.
A
B
cosphi
0,95
0,95
cosphi1 = 1,0
untererregt
under-exited
(induktiv
inductiv
übererregt
over-
exited
(kapazitiv
capactiv)
bis
to
von
from
Un
U rated
von
from
bis
to
U Ph-Ph
bis
to
von
from
400 V
360 V
380 V
420 V
440 V
10V Ph-Ph
90%
95%
100%
105%
110%