Power One Aurora PVI-110.0-YY, Руководство пользователя, по установке и обслуживанию

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Installation and Operation Manual
Page 49 of 156
[PVI-XXX.0-YY(-TL) - Rev:1.0]
7.3. Additional protection
AURORA is equipped with additional
protections to guarantee the safe operation
under any circumstances. Such protections
include:
•
Constant monitoring of the mains voltage to
guarantee that the voltage and frequency
values remain within operating limits
(according to standards in force in the
country where it is marketed).
•
Internal temperature control to
automatically limit power if necessary and
to guarantee that the unit does not
overheat.
AURORA’s many control and protection
devices, listed below, result in a redundant
structure to guarantee operation in absolute
safety.
Automatic measures:
•
The DC voltage of the photovoltaic field is
measured and the independent overvoltage
(OV) is signalled on each module.
•
The independent AC voltage on each
module is measured.
•
The independent AC current of each module
is measured.
•
The independent grid voltage frequency is
measured on each module.
•
Independent thermal measures on each
module.
•
The input insulation Resistance is measured
by the Master modules.
Protection fuses:
•
DC side: presence or not of the fuses,
according to the input
configuration
for
each Framework.
•
AC side: 3 fuses for each module, for a total
of 6 fuses per Framework.
Other protective measures:
•
Magnetothermic switch at the input of the
auxiliary supply network.
•
Magnetothermic switch at the input of the
distribution grid (300 Vac).
•
DC side: protections against overvoltages
(OVR), with replaceable cartridges.
•
AC side: protections against overvoltages
(OVR), with replaceable cartridges on the
300Vac grid and the auxiliary voltage.
•
Protection against overvoltages (OVR), with
replaceable cartridges on the RS485 serial
line.
•
Protections against overheating on each
module.