Fresh air is drawn in through the ventilation grids in the front of the inverters. The protective roofs must be open to allow
the air to circulate unhindered. The cooling concept of the MV Power Station uses the service platforms to dissipate the
warm exhaust air. For this reason, the MV Power Station must always be operated with open service platforms.
Figure 11: Air circulation principle in the MV Power Station with one inverter
Figure 12: Air circulation principle in the MV Power Station with two inverters
The fresh-air requirement of one inverter in the MV Power Station is 3000 m
3
/h, that of two inverters is 6000 m
3
/h.
The ambient conditions must comply with classification 4S2. The inverter is protected against salt spray in accordance
with EN 60721-3-4 class 4C2.
The MV Power Station can be installed in chemically active environments, e.g. in coastal areas. In this case, you must
select the appropriate order option. This order option provides the MV Power Station with enhanced protection against
mechanically and chemically active substances. The ambient conditions must then comply with classifications 4S2 and
4C2. In the standard version, the MV Power Station meets the requirements of the classifications 4S2 and 4C1.
The air quality requirements are given in the following tables.
The air quality must comply with the following classification of air quality for mechanically active
substances:
Ambient conditions for stationary application
Class 4S2
Class 4S4
a) Sand in air [mg/m
3
]
300
4000
b) Dust (suspended matter) [mg/m
3
]
5.0
20.0
4 Information for Installation
SMA Solar Technology AG
Transportation and Installation Requirements
MVPS22JP-TA-en-20
20
Summary of Contents for MEDIUM VOLTAGE POWER STATION 1000-1SC-JP
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