Manual 37137B
ESDR 4 - Current Differential Protection Relay
Relay Outputs
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
max. 250 Vac
A
B
Relay output
Relay output
external device
external device
external device
C
D
E
Relay output
external device
external device
F
G
H
Figure 3-5: Relay outputs
Terminal
A
max
Root Make-contact
A B
Description
7
8
Relay 3 – Ready for operation
2.5 mm²
Make-
Contact
Root Break-
contact
C
D
E
3
2
1
Relay 1 –Trip
2.5 mm²
6
5
4
Relay 2 –Trip
2.5 mm²
Root Make-
contact
Break-
contact
F G H
11
10
12
Relay 4 – Warning
2.5 mm²
© Woodward
Page 13/35
