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10 Maintenance instructions
10.1 What this chapter contains
This chapter contains the maintenance instructions for the inverter. Although your ESI-
S 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 inverter panel. Do not touch
any inverter parts unless you have ascertained that they do not carry dangerous
voltage levels.
WARNING: Under no circumstances close the DC and AC contactor manually. Failure to
adhere to this guideline may result in physical injury and/or in inverter damage.
10.2 Maintenance intervals
Table 53
lists the routine maintenance intervals. Depending on the operating and
ambient conditions, the intervals of
intervals assume that the equipment is operating under ABB approved operating
conditions (Cf.
Maintenance
Standard maintenance
procedure
Cooling fan change
DC capacitor change
For convenience
maintenance engineer.
172 Maintenance instructions ç Manual Energy Storage Inverter ESI-S
Chapter
12).
Table 53: inverter maintenance intervals
Intervals
Depending on the
dustiness/dirtiness of the
environment, every 12 to 24 months.
Every 4 years for the "fan in"(35000
hours)
Every 3 years for the "fan out"(27000
hours)
Every 8 years
Section 10.7
presents a maintenance template that can be used by the
Table 53
may have to be reduced. Announced
Chapter 2
of this manual
Instructions
Section 10.3
Section 10.4
Section 10.5
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