Sunny Boy 2000
Technical Description
SB2000-11:EE
- 12 -
SMA Regelsysteme GmbH
continuously feed nominal power to the grid even in case of high ambient tempera-
ture (e.g. when the Sunny Boy is installed directly under the roof). The Sunny Boy
2000, which can feed peak power of 2000 watts to the grid, has an integrated heat
sink temperature monitoring. When the maximum temperature is exceeded (e.g. due
to high ambient temperature or insufficient heat dissipation) the Sunny Boy reduces
the input current so that it is not overheated and still feeds maximum possible power
to the grid.
The sequential control system is extended by the possibility to communicate with the
corresponding SMA tools Sunny Data or Sunny Data Control for data analysis. This
feature makes the Sunny Boy a universal system either used as standalone device
or as part of a large PV-plant with centralized operation monitoring and evaluation.
The grid is simultaneously monitored by two independent one-chip microcomputers
and fully complies with all grid feeding regulations of the VDEW and the employee
associations (MSD with evaluation of the grid impedance and GFCI). The Sunny Boy
therefore can be connected to the grid at any point of the house grid resulting in
most simple installation. The relevant guidelines, regulations and standards must of
course be kept to.
The Sunny Boy is equipped with a stainless steel enclosure which is dustproof and
water-proof (protection class IP65). This protection class allows mounting at nearly
any place with ambient temperatures of –25°C to +60°C.
Even with small PV-plants personnel protection is a priority. The Sunny Boy is
equipped with an all-pole sensitive RCB (residual current breaker) for 30 mA with a
so-called shifting base. This RCB and the insulation monitoring make sure any insu-
lation failure is detected immediately and the plant is switched off. Due to the shifting
base real grounding failures can be distinguished from normal ground discharge cur-
rents of the PV-panel. Of course the relevant standards e.g. for electromagnetic
compatibility (EMC) and safety technology are also complied with.
