Areva MVAG, Service Manual

Page: 21 / 38

Page 19
Figure 5: Circuit diagram: MVAG 15 overvoltage relay
Viewed from front
21 43
RL1
2
R1
R2
3
12
4
C1
28
D4 D3
D2 D1
RVD1
27
V
n
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
1
2
3
4
5
6
13
14
21
22
27
28
Case ear
th
Module ter
minal block
viewed from rear
Combinations of
Output contacts to
output contacts
module ter
minals
1 3
2 4
2M
–
MM
1M
1B
M
B
Contact description
M
: Make
B
: Break
ZJ0075