Current Measurement; Programming Of Phase-Correction - janitza Prophi 12R Manual

2.1 Current measurement

When installing the current converter, care should be taken to ensure that the load
current and capacitor-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
entered.
Example:
C.converter 1: 1000/5A
C.converter 2: 1000/5A
Sum-current converter: 5A+5A/5A
C.converter ratio is: 2000/5A
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
Example :
Meas.current: L1
Meas. voltage: L3-L2
Phase U/I [ 90°]
using meas. current
Preset: L1
L1
L1 (k<->l)
L1
L1
L1
L1 (k<->l)
L1 (k<->l)
L1
L1
L1 (k<->l)
L1 (k<->l)
sum-current converters, the overall conversion ratio is
supply-
voltage
Vb
L1 (R)
L2 (S)
L3 (T)
N
PE
(L) (N)
Ub
meas. voltage
L1 - N
L1 - L2
L2 - N
L3 - L2
L3 - N
L3 - L1
L1 - N
L1 - L2
L2 - N
L2 - L3
L3 - N
L3 - L1
- 6 -
Prophi
®
Measurement via sum current converter
Feed 1
K k
L l
K L K
k
k
Current
measurement
meas. -
Meas.current
voltage
L2-L3
k l
L3 L2 k l
Um Im
phase-angle
0°
30°
60°
90°
120°
150°
180°
210°
240°
270°
300°
330°
12R / 12 RS
Feed 2
k K
l L
L
l
l
7