Areva MVAG, Service Manual

Page: 24 / 38

Page 22
Figure 8: Circuit diagram: MVAG 18 overvoltage relay
1
2
3
4
5
6
13
14
21
22
27
28
Case ear
th
Module ter
minal block
viewed from rear
7
8
9
10
11
12
ZJ0071
9 11
Rear mounted
facing rear
viewed from front
RL2
1
D2 D4
D1 D3
RVD1
5
C1
6
R8
7
R7
6
R6
5
R5
4
R4
3
R3
2
R1
1
S1
13
1 2
V
n
27 28
D6 D8
D5 D7
RVD2
3 4
13 14
V
x
7 8
RL1
–A
RB
K
W
21 43 65 87 10 12
Front mounted
facing front
viewed from front
RL1
5
RL2
–A
A
A
Rear unit
– RL2
Combinations of
Output contacts to
output contacts
module ter
minals
9 11
1M
–
M
–
1B
B
Contact description
M
: Make
B
: Break
Front unit
– RL1
Combinations of
Output contacts to
output contacts
module ter
minals
1 3
5 7
2 4
6 8
10
12
5M
–
MM
M
M
M
4M
1B
M
M
B
M
M
3M
2B
B
M
B
M
M
2M
3B
B
M
B
B
M
1M
4B
B
B
B
B
M
–
5B
B
B
B
B
B
Note 1
(a)
CT shor
ting links make
before (b) and (c) disconnect.
(b)
Shor
t ter
minals break before (c).
(c)
Long ter
minals
R2