Table of Contents
Advertisement
70 Maintenance
Maintenance task/object
Replacement
Cooling fans
Water-glycol coolant with inhibitor
(see Note 1 below)
Memory backup battery in the
BCU control unit
ABB-SACE main circuit breaker
maintenance (see Note 2 below)
LCL filter capacitors
Inspection and/or performance
Cabinet door air filters (change
interval depends on cleanliness
of ambient air)
Cooling liquid pipe connections
Fiber optic cables (connections)
Tightness of terminals
Quick connector of the converter
module
Condition of contactors
Checking ambient conditions
(dustiness, corrosion, temperat-
ure)
Checking the quality of auxiliary
voltage
Smoke detectors
Improvements
Firmware and hardware upgrade
based on product notes
Measurements and tests
Functional test with net voltage
Basic measurements with supply
voltage
Spare parts
Spare parts
Symbols
I
Inspection (visual inspection and maintenance action if needed)
P
Performance of on/off-site work (commissioning, tests, measurements or other work)
R
Replacement
Maintenance and component replacement intervals are based on the assumption that the
equipment is operated within the specified ratings and ambient conditions. ABB recommends
annual inspections to ensure the highest reliability and optimum performance.
0
1
2
3
4
I
I
I
I
I
I
P
P
P
P
I
I
I
I
I/R
I/R
I/R
I/R
I
I
I
I
I
P
I
I
I
I
I
I
I
I
I
I
I
I
I
I/P
I/P
I/P
I/P
I
I
I
I
P
P
P
P
P
P
P
P
I
P
I
P
Years from start-up
5
6
7
8
9
R
R
I
I
R
I
I
I
P
R
P
P
P
I
I
I
I
I
I/R
I/R
I/R
I/R
I/R
I
I
I
I
I
I
I
P
P
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I/P
I/P
I/P
I/P
I/P
I
I
I
I
I
P
P
P
P
P
P
P
P
P
P
I
P
I
P
I
10
11
12
...
R
I
R
I
I
R
P/R
P
P
I
I
R
I/R
I/R
I/R
I
I
I
I
P
I
I
I
I
I
I
I
I
I
I
I/P
I/P
I/P
I
I
I
P
P
P
P
P
P
P
I
P
3AXD10001509309
Advertisement
Table of Contents
