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Section 4
Protection relay's physical connections
4.1
Inputs
4.1.1
Energizing inputs
4.1.1.1
Phase voltage
Table 16:
Phase voltage inputs
Terminal
Description
X130:11-12
U1
X130:13-14
U2
X130:15-16
U3
Table 17:
Reference voltage measurement
Terminal
Description
X130:9-10
U12B
4.1.1.2
Residual voltage
Table 18:
Residual voltage
Terminal
Description
X130:17-18
Uo
4.1.2
Auxiliary supply voltage input
The auxiliary voltage of the protection relay is connected to terminals X100:1-2. At
DC supply, the positive lead is connected to terminal X100:1. The permitted auxiliary
voltage range (AC/DC or DC) is marked on the top of the LHMI of the protection
relay.
Table 19:
Auxiliary voltage supply
Terminal
Description
X100:1
+ Input
X100:2
- Input
1MRS758335 B
Section 4
Protection relay's physical connections
REU611
69
Application Manual