SMA SB 2800i Installation - Manual (Page 16)

Requirements for the Installation Installation Guide
14 SMA Regelsysteme GmbH SB2800i-11:SE0504
The impedance at the AC connection point of the Sunny Boy
3000 must be below 2 Ohm in order to ensure a reliable function
of the anti-islanding unit. You should furthermore have a suitable
cable cross-section in order to keep the losses below 1 % at
nominal power. The according losses with respect to cable length
and cross-section are illustrated below:
Fig. 4.1: Losses in AC cable
The Sunny Boy 2800i is designed for 230 V grids. The voltage
should be within 198 V and 260 V and the frequency should be
within 49.8 Hz and 50.2 Hz.
Table 4.2: Limits for AC output of the Sunny Boy 2800i
Limits for AC Output
Voltage range 198 V ... 260 V
Frequency range 49.8 Hz ... 50.2 Hz
Voltage range
(without ENS)
180 V ... 260 V
Frequency range
(without ENS)
45.5 Hz ... 54.5 Hz
Limits for AC output
198 V ... 260 V
49.8 Hz ... 50.2 Hz
SB2800i-11-SE0504-TEXT.fm Seite 14 Freitag, 20. Februar 2004 9:19 09