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VT for zero-phase sequence voltage
(ii)
Regarding zero-phase sequence voltage†, the user can select a style of either No.211 or 212.
Find a matching style and define it by setting [Conn-VeVT].
Table 5.4-6 Connection styles for VT for zero-phase sequence voltage
No.
Connection styles
211
Not to input
To input voltage
212
from tertiary VT
†Note: In the IED operations, zero-sequence phase voltage "Ve" will be translated into the
below name and sense in accordance with the source origin:
Vo: zero-phase sequence voltage on tertiary VT winding (No. 212)
VT for voltage checking at autoreclosing
(iii)
Regarding voltage checking at autoreclosing, the user can select a style of either No.221 or 222.
Find a matching style and define it by setting [Conn-VsVT].
Table 5.4-7 Connection styles for VT for voltage checking at autoreclosing
No.
Connection styles
221
Not to input
To input
1 phase voltage
222
for voltage checking
at the autoreclosing
Setting
[Conn-VeVT]
No voltage inputted to VT-Ve
No use
Voltage inputted to VT-Ve from VT tertiary
Use
Setting
[Conn-VsVT]
No voltage inputted to VT-Vs
No use
Phase-ground voltage or phase-phase voltage
inputted to VT-Vs
Use
- 638 -
6F2T0207 (0.01)
Wiring examples
Busbar
A B C
15
16
Busbar
A B C
15
16
Wiring examples
Busbar
A B C
17
18
Busbar
A B C
17
18
Ve
--
Ve
V
0
Vs
--
Vs
Vs
GRE200 (5,6)
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