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10 Maintenance instructions
10.1 What this chapter contains
This chapter contains the maintenance instructions for the active filter. Although your
PQF has been designed for minimum maintenance, the following procedure should be
carefully followed to ensure the longest possible lifetime of your investment.
WARNING: All maintenance work described in this chapter should only be undertaken
by a qualified electrician. The safety instructions presented in
must be strictly adhered to.
WARNING: High AC and DC voltages may be present in the filter panel. Do not touch
any filter parts unless you have ascertained that they do not carry dangerous voltage
levels.
WARNING: Under no circumstances close the main contactor manually. Failure to
adhere to this guideline may result in physical injury and/or in filter damage.
10.2 Maintenance intervals
Table 55
lists the routine maintenance intervals recommended by ABB. Depending on
the operating and ambient conditions, the intervals of
Announced intervals assume that the equipment is operating under ABB approved
operating conditions (Cf.
Maintenance
Standard maintenance
procedure
Cooling fan(s) change
DC capacitor change
Output filter board change
For convenience
maintenance engineer.
176 Maintenance instructions Manual Power Quality Filter PQFS
Chapter
12).
Table 55: Filter maintenance intervals recommended by ABB
Intervals
Depending on the dustiness/dirtiness of
the environment, at least once per year.
Every 4 years for the "fan in"(35000 hours)
Every 3 years for the "fan out"(27000 hours)
Every 8 years for 3-wire connection
Every 5 years for 4-wire connection
Every 5 years
Section 10.6
presents a maintenance template that can be used by the
Chapter 2
of this manual
Table 55
may have to be reduced.
Instructions
Section 10.3
Section 10.4
Section 10.5
Section 10.7
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