janitza Prophi 6T, Руководство пользователя

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Prophi
®
6T
6
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 14)
Example:
Meas.current: L1
Meas. Voltage L3-L2
Phase U/I [ 90°]
- 5 -
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.
k K k K
l L l L
Feed 1 Feed 2
K L K L
Measurement via sum current converter
Prophi-6T
Current
measurement
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
L1 (R)
L2 (S)
L3 (T)
N
k l
T 2
A
T 2
A
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°
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°