Wiring Of Voltage Transformers - ABB ZX0 Manual For Installation And Operation

2.3.5.2 Wiring of the voltage
transformers
The voltage transformers are fitted with terminal boards. The
possible configurations of terminal boards can be found in figure
2.3.5.2.1 and table 2.3.5.2.1.
Fig. 2.3.5.2.1: Possible terminal board configurations
Table 2.3.5.2.1: Possible terminal board configurations
Windings
Number Tap
1
1
1 ●
1 ●
2
2
2 ●
In a voltage transformer version with 2 windings plus tap or 2 windings
plus e-n winding, "N" is implemented at the base plate of the voltage
transformer.
28 | Manual ZX0 HB 600 en - Revision 05
e-n winding 1
N
● N
N
● N
N
● 1a
1a1
Terminal
2 3
a n
a n
a1 a2
a1 a2
1a 1n
1n 2a
1a2 1n
4 5
da dn
n
n da
2a 2n
2n da
2a1 2a2
6
dn
dn
2n