SolarMax TS-SV, Руководство пользователя и инструкция по установке

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Technical data
Max. ambient temperature 40 °C
3.4.3 Medium-voltage transformer
The medium-voltage transformer is the link between the local 280 V network within a sta-
tion and the medium-voltage network. The inverter may only be connected to the power
grid via a medium-voltage transformer. The medium-voltage transformer provides the
potential separation between the PV power plant and the medium-voltage switch system
or the power grid. The inverter does not have its own potential separation. The medium-
voltage transformer is not included in the scope of supply.
Determining the size
The dimensioning of the medium-voltage transformer depends on the number of TS-SV
inverters used. Dimension the medium-voltage transformer in such a way that its no-
load losses remain as low as possible. The following reference values are applicable to a
maximum ambient temperature of 40 °C.
Number of SM330TS-SV inverters Size of the medium-voltage transformer [kVA]
1 400
2 630
3 1 000
4 1 250
Number of SM360TS-SV inverters Size of the medium-voltage transformer [kVA]
1 400
2 800
3 1 000
4 1 600
Requirements
The requirements are listed in the following table, using a 1 000 kVA medium-voltage
transformer as example:
1 000 kVA medium-voltage transformer
Type 3 phases / 50 Hz (on rollers)
Power output 1 000 kVA
Number of 3-phase windings 2 (1 MV, 1 LV)