Solectria Renewables PVI 3800TL, Инструкция по установке и эксплуатации

Страница: 9 / 93

8
With this device you have acquired a inverter for connection of a photovoltaic system to the grid.
This inverter is characterized by an advanced housing design and state-of-the-art high-frequency
technology, which enable the highest levels of efficiency and longest life.
The inverter includes key features and capabilities, such as anti-islanding protection, LCD, RS485
interfaces.
The inverter is usable indoors and outdoors. It fulfills the directives of ANSI/NFPA 70, NEC 690.5,
UL 1741, IEEE 1547 and IEEE 1547.1 for parallel operation of power generation plants on low-
voltage network of regional electrical utility companies.
The function of the anti-islanding protection (automatic isolation point for in-plant generation sys-
tems) complies with UL 1741 / IEEE 1547 specifications.
In the following technical description, the precise functions are explained to the installer, as well as
the user, which are required for the installation, operational start-up and handling of the inverter.
Renewable energy use worldwide is increasing annually by approximately 25%. The reason for
this rise can be primarily attributed to the constantly increasing demand for power, the increasing
interest in environmentally friendly technologies, as well as the increasing costs of non-renewable
energy.
Use of renewable energy sources, can reduce levels of CO
2
and other harmful gases in the atmo-
sphere produced by conventional power generation.
The inverter converts direct current from solar array into alternating current. This enables you to
feed your self-produced solar energy into the electric grid.
Thanks to efficient MPP tracking, maximum capacity utilization of the solar energy plant is en
-
sured even in cases of misty and cloudy skies.
The string concept means that PV modules are always connected in series (in a string) and/or that
strings with the same voltage are connected in parallel to the inverter with the aim of significantly
reducing the photovoltaic system’s cabling requirements.
The fact that the modules are connected in strings also means that the photovoltaic system can be
perfectly matched to the inverter’s input voltage range.
The inverter is transformerless, without galvanic isolation. Therefore, the inverter may only be oper-
ated with ungrounded PV arrays. Furthermore, the PV array must be installed in accordance with
the NEC690.35 (Ungrounded Photovoltaic Power Systems) and the locally valid regulations for
ungrounded PV arrays. Additionally, the PV array (PV modules and cabling) must have protective
insulation and the PV modules used must be suitable for use with this inverter. PV modules with
a high capacity to ground may only be used if their coupling capacity does not excessed 1,200 nF
with 60Hz grid.
2 Introduction
2.1 System