SolaX Power X3-FORTH Series User Manual

2 Safety
2.1 Appropriate Usage
The X3-Forth Series are PV inverters which can convert the DC current of the PV
generator into AC current and feed it into the public grid.
Surge protection devices (SPDs) for PV installation
Over-voltage protection with surge arresters should be
when the PV power system is installed.provided
The grid connected inverter is fitted with SPDs in MAINS
side.
WARNING!
Induced surges are the more likely cause of lightning damage in the majority of
installations, especially in rural areas where electricity is usually provided by
long overhead lines. Surges may be induced on both the PV array conductors
or the AC cables leading to the building.
Specialists in lightning protection should be consulted in the actual application.
Using appropriate external lightning protection, the effect of a direct lightning
Installation of SPDs to protect the inverter against mechanical damage and
excessive stress include a surge arrester in case of a building with external
lightning protection system (LPS) when separation distance is kept.
To protect the DC system, surge protection device (SPD type2) should be fitted
at the inverter end of the DC cabling and at the array located between the
inverter and the PV generator, if the voltage protection level (VP) of the surge
arresters is greater than 1100V, an additional SPD type 3 required for surge protection
for electrical devices.
To protect the AC system, surge protection devices (SPD type2) should be
fitted at the main incoming point of AC supply (at the consumer’s cutout) ,
located between the inverter and the meter / distribution system; SPD (test
impulse D1) for signal line according to EN 61632-1.
All DC cables should be installed to provide as short a run as possible, and positive
and negative cables of the string or main DC supply should be bundled
together. Avoid creating loops in the system. This requirement forshort runs
and bundling includes any associated earth bundling conductors.
0504
SafetySafety
● Anti-Islanding Effect
Islanding effect is a special phenomenon that grid-connected PV system still
supplies power to the nearby grid when electrical grid power is no longer present. It
is dangerous for maintenance personnel and the public.
X3-Forth series provide Active Frequency Drift (AFD) to prevent islanding effect.
Spark gap protection devices are not suitable to be used in DC circuits once conducting,
they won’t stop conducting until the voltage passes through their terminals
typically less than 30 volts.
2.2 Important Safety Instructions
DANGER!
Danger to life due to high voltages in the inverter!
• All work must be carried out by qualified electrician.
• The appliance is not to be used by children or persons with
reduced physical sensory or mental capabilities, or lack of
experience and knowledge, unless they have been given
supervision or instruction.
• Children should be supervised to ensure that they do not play
with the appliance.
CAUTION!
• Danger of burn injuries due to hot enclosure parts!
• During operation, the upper lid of the enclosure and the
enclosure body may become hot.
• Only touch the lower enclosure lid during operation.
CAUTION!
• Possible damage to health as a result of the effects of radiation!
• Do not stay closer than 20 cm to inverter for any length of time.
NOTE!
Grounding the PV generator.
• Comply with the local requirements for grounding the PV
modules and the PV generator. SolaX recommends connecting
the generator frame and other electrically conductive surfaces
in a manner which ensures continuous conduction and ground
these in order to have optimal protection of system and persons.

SolaX Power X3-FORTH Series Specifications

General

Brand	SolaX Power
Model	X3-FORTH Series
Category	Inverter
Language	English