ABB ZX0 - Wiring of the voltage transformers

28 | Manual ZX0 HB 600 en - Revision 05
Table 2.3.5.2.1: Possible terminal board configurations
Windings Terminal
Number Tap e-n winding 1 2 3 4 5 6
1 N a n
1
●
N a n da dn
1
●
N a1 a2 n
1
● ●
N a1 a2 n da dn
2 N 1a 1n 2a 2n
2
●
1a 1n 2a 2n da dn
2
●
1a1 1a2 1n 2a1 2a2 2n
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
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.