Delta SoLiViA 3.3 User Manual download pdf (Page 15)

Within the central inverter product line, Delta offers two

types of cabinet sizes: The smaller cabinet systems,

SOLIVIA CS, provide maximum ﬂ exibility for a power out-

put of 44.4 kW, 55.5 kW and 66.6 kW, whereas, the larger

SOLIVIA CM systems offer output power of 77.7 kW,

88.8 kW and 100 kW.

The modularity of Delta’s central inverters guarantees a

system availability of approximately 90 % if any individual

components fail in one of the inverter racks, and the

’redundant system’ design of the SOLIVIA CS and SOLIVIA

CM ensures maximum reliability. The concept of the central

inverters support the user when expanding the system to

increase output, etc..

Due to the modular approach of Delta’s central inverters,

the start-up behavior of the systems is extremely ef cient.

With low irradiation conditions the string power will rise

slowly, so that rack after rack will power-up, and operate

very fast in the optimum range of high ef ciency.

An in-house designed software-algorithm controls that the

average operating hour of each inverter rack is approxi-

mately the same. Unnecessary racks are switched off and

optimize the ef ciency.

Compared to commercially available central inverters,

the SOLIVIA CS and SOLIVIA CM series are smaller and

therefore more lightweight, allowing for easy installations.

The transportation of the systems is done without any

racks inside. Therefore, the cabinet can be easily installed

at the place of destination without need of heavy equip-

ment.

The galvanic isolated SOLIVIA CS and SOLIVIA CM inver-

ters consist of 4 to 6 and 7 to 9 high ef ciency inverter

racks, respectively, DC disconnectors, system controllers,

and a robust cabinet. Both modular central inverter sys-

tems are suitable for all commonly used solar modules and

their IP54 cabinet allows you to install them even in pro-

tected outside areas.

With the latest high frequency technology, the electrically

isolated SOLIVIA central inverters from Delta achieve peak

ef ciencies up to 95.6 %.

For power limitation, a monitoring system according to the

German EEG is required (we recommend Meteocontrol).

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Delta SoLiViA 3.3 User Manual Page 15