Schaffner Group
User and Installation Manual
Ecosine evo
October 2018
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9. Filter maintenance
Ecosine evo passive harmonic filters described in this manual are equipped with long life components that
ensure a satisfactory function for many years under normal operating conditions. Any operation under
extreme conditions such as over-temperatures, overvoltage situations, polluted environments etc. reduces
the life expectancy. Following maintenance recommendation will help maximizing filter lifetime.
Warnings
:
High voltage potentials are involved in the operation of this product. Always remove line side
power before attempting to perform maintenance, and let ample time elapse for the
capacitors to discharge to safe levels (<42 V). Residual voltages are to be measured both
line to line and line to earth.
Line side power must be disconnected prior to replacement of any part.
9.1 Maintenance schedule
Table 24 Maintenance schedule
year
1
2
3
4
5
6
7
8
9
10
11
12
check and clean fan(s)
X
X
X
X
X
X
X
X
X
X
X
X
replace fan(s)
X
X
check & tighten el. Connections
1)
X
X
X
X
X
X
X
X
X
X
X
X
check el. values of capacitors
X
X
X
X
X
X
replace power capacitors
X
1)
Only external connections need to be checked.
