Rockwell Automation 865 Differential Protection Relay - Manual (Page 161)

Chapter
9
865-UM001A-EN-P – July 2009
Connections
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
1
3
5
7
9
11
13
15
17
19
2
4
6
8
10
12
14
16
18
20
X3 X6 X1
VYX060A
40..265V AC/DC
LOCAL (RS
232)
REMOTE
(TTL)
Digital
inputs
48V
DI1
DI2
DI3
DI4
DI5
DI6
A1
A5
A4
A3
A2
IF
T1
Uaux
T2
I´
I
I´
I
I
I
I
I
I I
I I
I´ I´
I´ I´
L1 L1
L3
01
01
02
02
L3
L2 L2
L1 L1
L2 L2
L3 L3
1
2
3
4
5
6
7
X5
X4
X2
Figure 9.1 – Typical Connections on Rear Panel of the Relay
The generator, transformer and motor differential protection relay is
connected to the protected object through the following measuring
and control connections, Figure 9.1:
Phase currents IL1, IL2 and IL3 (terminals X1: 1-6)
Phase currents I’L1, I’L2 and I’L3 (terminals X1: 11-16)
Earth fault current I01 (terminals X1: 7-8)
Earth fault current I02 (terminals X1: 9-10)
Rear Panel View