Prophi
®
6R
6
2.1 Current measurement
When installing the current converter, care should be taken to ensure that the load
current flows through it. The outputs of the compensation network must be installed
behind the current converter (in the direction of current flow). If the device is connected
up via sum-current converters, the overall conversion ratio is entered.
2.2 Programming of phase-correction - e.g. connection directly L-L (400V)
Adjustment of phase-correction between voltage and current in the meas. system is done
in expert mode 1 (page 17)
Example :
Meas.current: L1
Meas. Voltage L3-L2
Phase U/I [ 90°]
L1 (R)
L2 (S)
L3 (T)
N
Meas.current
supply-
voltage
Vb
meas. -
voltage
L2-L3
k l
T 2A
T 2A
PE
Ub Um Im
(L) (N) L3 L2 k l
using meas. current meas. voltage phase-angle
Preset: L1 L1 - N 0°
L1 L1 - L2 30°
L1 (k<->l) L2 - N 60°
s. example L1 L3 - L2 90°
L1 L3 - N 120°
L1 L3 - L1 150°
L1 (k<->l) L1 - N 180°
L1 (k<->l) L1 - L2 210°
L1 L2 - N 240°
L1 L2 - L3 270°
L1 (k<->l) L3 - N 300°
L1 (k<->l) L3 - L1 330°
kK k K
lL l L
Feed 1 Feed 2
K L K L
Measurement via sum current converter
Current
measurement
Prophi-6R
k l
k l
Example:
C.converter 1: 1000/5A
C.converter 2: 1000/5A
Sum-current converter: 5A+5A/5A
C.converter ratio is: 2000/5A
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