6 Electrical Connection
Block circuit diagram for three-conductor utility grid with three line conductors
L1
L2
L3
Figure 12: Current measurement within the three-conductor utility grid (example)
Voltage measurement 1
L1
1
L1
L2
L3
Figure 13: Voltage measurement within the three-conductor utility grid (example): with and without voltage converter
Internal measurement modules
There are three measurement modules within the Fuel Save Controller for current measurement and voltage
measurement, installed in accordance with the following table.
Current measurement or voltage measurement
Current measurement 1 (see Section 6.7.2, page 29)
Current measurement 2 (see Section 6.7.2, page 29)
Voltage measurement 1 (see Section 6.7.3, page 32)
28
FSC20-IA-xx-20
Fuel Save Controller
Current measurement 1
k1
l1
k2
l2
k3
*
*
1
2
3
4
5
L2
L3
N
PE
*
2
3
4
5
* In the three-conductor utility grid, use for the selected connecting terminal plate X200 the blue jumper between N and PE.
Current measurement 2
l3
k4
l4
k5
l5
k6
*
*
*
6
7
8
9
10
11 12
* Remove jumper on the wired terminals of the connecting terminal plate X700.
Voltage measurement 1
L1
L2
L3
1
2
3
L1
L2
L3
Internal measurement mod-
ule
Measurement module 1
SMA Solar Technology AG
l6
lx
*
13
L1
L2
L3
L1
L2
L3
N
PE
*
4
5
Installation Manual