CCR961 MANUAL-GB
52
Version B2:01-07-2015
8.3
List of possible failures
No. Failure
Cause
Correction
1
Open circuit
Repair circuit
2
Imin
Many faulty lamps (open secondary sides
on SIT)
Change lamps
3
Cut-out device activated
Set to normal position
4
CCR
module
failure
Change
module
5
6
Thyristor unit shorted
Change module or Thyristor
7
Imax
Too much load change in series circuit
due to selector switch or single lamp
control
Adapt
8
Flash-over on Lightning Arrestors
Change Lightning Arrestors
9
Display saying
Memory Board missing in CCR Module
10
“Default values”
Memory Board from old Software, set
default data (5)
11
Faulty Memory Board
Change Memory Board
12
13
No step back -
Too many fault lamps in circuit
Change lamps
14
indication
The series circuit have been expanded
Change tapping
15
No indications in
Power to the cubicle is missing
Repair the supply
16
Display
Fuse in Module faulty
Change fuse or change module
17
18
19
20
21
22
23