ABB Relion 670 series - Page 1373

REX062 input protection
REX062 limits overvoltage by a varistor at the injection output to stator. Normally , REX060 will
interrupt the injection circuit in case of excessive over-current in the injection chain. Fuse within
REX062 is an additional protection in case of failure within REX062 during over-voltage condition.
A blown REX062 fuse requires a module disassembling to replace the fuse (F 6.3 A 250 V).
However, if this occurs it is recommended to identify the reason for the over-current and do
needed actions to reduce the current.
BI
AI (V), current measure
AI (V), voltage measure
BI
RL+
RL+
BI
BI
RL+
BI
(BI)
REG670
PE
EL
+
-
X61: 14; I
A
sense
X61: 15; I
B
sense
X61:12 ; V
A
sense
X61:13 ; V
B
sense
VA Out; X61:8
VB Out; X61:9
IA Out; X61:10
IB Out; X61:11
UA Out; X81:8
UB Out; X81:9
IA Out; X81:10
IB Out; X81:11
Block 220V ; X61: 1
Block 110V ; X61: 2
Block 48V; X61:3
Block Common; X61:4
Block 220V ; X81: 1
Block 110V ; X81: 2
Block 48V; X81:3
Block Common; X81:4
Blocked; X61:5
Saturati on; X61:6
Common; X61:7
Blocked; X81:5
Saturati on; X81:6
Common; X81:7
REX060
Injection unit
PE
Ready; X11:1
Common; X11:2
Fail; X11:3
X11:4
X11:5
Rotor
Exciter
sourc e
RL-
BO
RL-
BO
X82:1 ; Inj
A
X82:4 ; Inj
B
X82:2 ; InjSh
B
X81:14; I
A
sense
X81:15; I
B
sense
X81:12 ; V
A
sense
X81:13 ; V
B
sense
X82:3 ; Inj
A
X82:5 ; Inj
B
X81:16; I
A
sense
X62:1 ; InjExt
A
X62:4 ; Inj
B
X62:2 ; InjExt
B
X62:3 ; Inj
A
X62:5 ; Inj
B
Rotor Module( R IM)
Stator Module ( SIM)
Power Supply Module
R
Distribution
Transformer
Stator
X1:7 ; Rotor -
X1:1; Rotor+
Injection; X1:9
Ground; X1:10
REX061
Coupling Capacitor unit
PE
X1:2; Injection A
X1:4; Injection B
External A; X1:9
External B; X1:10
I sense A; X1:6
I sense B; X1:8
REX062
Shunt Resistor unit
PE
ANSI11000017-2-en.Vsdx
AI (V ) current measure
AI (V) voltage measure
,
,
ANSI11000017 V2 EN-US
Figure 698: Example installation when REX062 unit is required
1MRK 502 066-UUS B Section 23
Injection equipment hardware
1367
Technical manual