Operator`s manual

Installation and Operator’s Manual Page 14 of 62
(PVI-2000-OUTD-UK
Rev: 1.0)
The AURORA operating system performs inter-process communication checks to
ensure the entire unit operates properly.
This process ensures optimal performance levels of the whole unit, as well as a
high efficiency under all solar radiation and load conditions, always in full
compliance with the applicable directives, standards and regulations.
2.4 Protective Devices
2.4.1 Anti-Islanding
When the local power distribution grid is interrupted due to a fault or maintenance
purposes, or when the equipment is shut down for maintenance operations,
AURORA shall be physically disconnected under safety conditions, so as to
protect the people working on the grid, in full compliance with the applicable
prevailing national standards and regulations. To avoid any possible islanding
operation, AURORA is provided with an automatic disconnection protective
system called Anti-Islanding.
The AURORA PVI-2000-OUTD-
UK model is equipped with an advanced Anti-
Islanding protection certified according to:
¾
UK G83\1
2.4.2 Panel Ground Fault
This version of Aurora is designed for connection to floating Photovoltaic array
only
, with the positive and negative terminals from the panels are not connected to
the Ground (the metallic support of the panel instead shall be connected to safety
Ground in accordance with existing electrical safety regulations). An advanced
ground fault protection circuit continuously monitors the ground connection and
shuts down AURORA in case a ground fault is detected and indicates the ground
fault condition by means of a red LED on the front panel. AURORA is equipped
with a (chassis) ground screw clamp, which shall be used for connection of the
plant Protective Earth conductor (equipment grounding conductor). See section
3.5 for detailed grounding instructions.
WARNING: Do not connect the AURORA inverter to Bi-polar
configured arrays. The AURORA inverter is designed for connection to
floating Photovoltaic arrays only.
NOTE: For detailed information on AURORA disconnection and on
malfunctioning causes, refer to the corresponding sections.