Alstom SHPM 101 - Injection Test Plug Connections

SERVICE MANUAL R5888B
QUADRAMHO Chapter 5
Appendix A
Page 1 of 18
Figure 1: Injection test plug connections
1
A11V
A
2
A13V
B
3
A15V
C
4
A12
A17
A18
B21
Any trip
B22
5
6
7
8
9
10
1
A19
I
A
2
A20
3
A21
I
B
4
A22
I
C
A23
A24
A25
A26
I
N
5
6
7
8
9
10
DC+
DC–
Any trip
Bridge to enable all
output contacts
I Z
(Top rack)
I Y
Relay
side
Internal
short
(Bottom rack)
The references
show which case
terminals are
connected to the
red side of the
test plug when
inserted
These connections
must be made before
the test plug is inserted
V
N
Memory check
Connect 1Z Terminals 1, 2 and 3
together, apply a close up C–N fault
with adequate source impedance
All secondary injections are made to
the relay side of the test plug.
VTS instantaneous indication and
blocking check
Inject current into 1Y1 link 2 to 4 and
return to neutral from 1Y3. Apply A–N
fault.
Check on function of SW4
To obtain a 3 phase Zone 1
fault inject into 1Y1, link 1Y1 to
1Y3, 1Y2 to 1Y4, 1Y4 to 1Y6 and
return to the neutral from 1Y5, apply
A–N fault