Technical Guide P92x/EN GS/E11
Getting Started
MiCOM P921-P922-P923 Page 15/18
aB
14. CONNECTION DIAGRAMS
33
34
+
-
Notes :
(1) Additional hardware for MiCOM P922 and P923 relay
(2) Additional hardware for MiCOM P922 and P923 relay
(3) 3VTs phase to neutral connection shown
41
42
43
44
45
46
49
50
22
24
26
28
19
17
21
23
27
25
WD
37
35
36
RL1
6
4
2
RL2
12
10
8
29
31
32
-
30
*
+
_
CB
A
Phase rotation
EL1
Power supply
Relay healthy
Watchdog
Relay failed
Output contacts (programmables)
RL3
16
14
RL4
20
18
RL5
3
1
RL6
7
5
RL7
9
11
RL8
13
15
4 programmables LEDs
Earth
connection
Communication port
RS485
*
(* System end resistance.
For last relay, connect 30 and 32 together).
MiCOM P921, P922 and P923 case connection diagram
LEDs
See note 2
See note 1
See note 3
MiCOM P92
*
RL1
RL2
RL3
EL2
EL3
EL4
EL5
RL4
RL5
RL6
RL7
RL8
Programmable inputs :
P0388ENa
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