Schaffner Group
User and Installation Manual
Ecosine
max
62/66
9 Filter maintenance
Ecosine max 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 capaci-
tors 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 32 Maintenance schedule
year
1
2
3
4
5
6
7
8
9
10
11
12
check & tighten el. Connections
i
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
i
Only external connections need to be checked.
