99
Note: * indicates optional.
The frequency of maintenance operations could be increased according to the
environmental conditions of the place where the MV Station is suited, plant
capacity and on-site situations.
The maintenance interval should be shortened if the sand or dust deposition
around the operation site is serious.
12.4 Cleaning the MV Station
12.4.1 Introduction
The cleaning of the MV Station surrounding areas and the MV Station interior is important
for the maintenance of the MV Station.
Due to ambient temperature, humidity, dust and vibration, there may be dust deposition
inside the MV Station blocking the air entries and penetrating inside the MV Station internal
devices. This may cause damage to the internal devices of the MV Station, shorten the
service life, and reduce power yields.
During device normal operation, check and clean the device periodically to make sure the
internal devices are in a comparatively good condition to a certain degree.
12.4.2 Cleaning Interval
The cleaning interval depends on the operation conditions of the MV Station, for example,
the weather condition and etc. it is necessary make sure the MV Station exterior and interior
areas are clean. If the operation conditions are severe, in desert area for instance, the
cleaning interval shall be every half a month or even shorter. The cleaning of the MV Station
inside devices and the air inlet and outlet shall be more frequent.
12.4.3 Cleaning the Internal Dust
Use a vacuum cleaner instead of a broom to clean the dust inside the MV Station.
12.4.4 Cleaning the Foundation
The foundation is designed with maintenance entry. Enter the foundation to check the
cleanness periodically. Use a vacuum cleaner to clean the foundation if necessary.
12.4.5 Checking and Cleaning the Air Inlets/outlets
12.4.5.1 Air Inlets
Brief Introduction
The air inlets are located at the top of the inverter. It is recommended to clean the air inlet
regularly, to avoid blocking.
System Manual
