9 Visualization
Maschinenfabrik Reinhausen GmbH 2020
172
4453918/14 EN
ETOS
®
TD
Only use these circuits in symmetrical grids. Note that you must always take
the W1 voltage and current measurements on the low-voltage side of the
transformer.
▪ W1: Voltage measurement and current measurement for the power calcu-
lation and hot-spot calculation on winding 1
▪ W2: Current measurement for hot-spot calculation on winding 2
▪ W3: Current measurement for hot-spot calculation on winding 3
Circuit S-1
L1
L2
L3
N
UI
VT
VT
VT
CT
CT
CT
L1
L2
L3
N
k1
l1 k2
l2 k3
l3
W1
L1
L2
L3
L1
L2
L3
W2
W3
N
If you use this circuit, set the device as follows:
Parameter
Option
Voltage-transformer circuit
-
Current-transformer circuit
3 Ph phase current
Current-transformer circuit W2
Total current
Current-transformer circuit W3
Phase current
Phase angle correction
0°
Summary of Contents for ETOS TD
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