Safety; Introduction - Steca StecaGrid 2000+ D Master Instructions D'installation Et De Service

EN

Safety

WARNING
Risk of death by electrocution!
The unit may only be connected to the grid by qualified personnel in accord-

ance with the regulations of the local power supply company.

Introduction

A significant contribution to environmental protection can be made by using
renewable energy sources as less CO
as well as other harmful gases following the burning of fossil fuels. One such
renewable energy source is the sun.
The sun's energy is converted using a so-called PV system (PV stands for photo-
voltaics; an explanation of this can be found in the glossary of specialist terms
at the back of this manual). A PV system contains, amongst other things, an
inverter. The inverter converts the direct current produced by the solar mod-
ules into alternating current which can be fed directly into the public power
grid. The StecaGrid was designed for so-called "grid-connected systems". With
these systems, the inverter is connected parallel to the public power grid.
The solar power system feeds the grid-compliant alternating current via an ad-
ditional feed-in meter (used for feed-in tariff) directly to the grid system of the
grid system operator and is then available to all consumers connected to the
grid. The energy used by the electricity consumer is then billed as normal using
the existing consumption meter.
State-of the-art, high-frequency technology is used in the StecaGrid inverter,
the result being a very high level of efficiency. The inverter uses the master-
slave principle. With this principle, a number of functions for several inverters
are controlled centrally and this is carried out in the so-called master inverter.
The master inverter can control up to two slave inverters connected to it. This
makes the dimensioning of the system more flexible. Using slave inverters also
lowers costs.
The master contains the central control unit, a data logger, display, etc. The
display can provide a quick overview of the system's functions. The StecaGrid
master inverter can be expanded by an optional StecaGrid Connect network
card, etc. See www.stecasolar.com for further information about communica-
tion connections and other accessories. Your installer can, of course, also give
you more information about the options that are available.
In the additional technical documentation, the installer and user are given a
description of the technical features that are necessary for the installation,
function, operation and use of the StecaGrid.
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is released into the Earth's atmosphere

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