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5.2. Inputs, outputs, Interface
5.2.1. Current inputs
All current inputs all galvanically insulated (internal current transformers).
The meter is adapted to co-operate with external current transformers.
Displayed current values and derivative quantities are automatically calculated in relation to the introduced external current transformer ratio.
Current inputs are defined in the order as 1 A or 5 A.
5.2.2. Voltage inputs
The quantity on voltage inputs is automatically calculated in relation to
the introduced external voltage transformer ratio. Voltage inputs are defined in the order as 3 x 57.7/100 V, 3 x 230/400 V or 3 x 400/690 V
Connection diagrams of the meter in a three-phase
network
Supply
85...250 V
AL
RS 485
GND B
A
Analogue
output
20 19 18 17 16 15 14 13 12 10
N13
11 9 8 7 6 5 4 3 2 1
L1
L2
L3
Fig. 2a Direct measurement in a three-phase network