Power One Aurora PVI-10.0-TL-OUTD, Руководство по установке и настройке

Страница: 10 / 69

7 - en
en
-
english
photovoltaic inverters
5. electrical connections (ac, dc side and pe connection)
Warning! Aurora inverters are TRANSFORMERLESS inverters. This topology means the photovoltaic
generator must be kept floating to earth: no generator pole should be earthed.
Warning! Aurora inverters must be connected to earth (PE) by the prepared clamp and using a cable with
a section suitable for the maximum failure current that can be had on the system. Any failure of an inverter
which is not connected to earth by the appropriate terminal block or screws is to be considered outside the
warranty.
Warning! Aurora inverters cannot be powered by unlimited sources of current, e.g. batteries. Powering the
device with this type of energy source can cause irreparable damage to the unit, with consequent invalidity
of the warranty conditions.
Warning! For the AC and DC side use cables with a suitable section for the internal conductor
(refer to Appendix C).
Warning! Aurora inverters are supplied with an internal protection system able to detect any ground
fault occurring on the DC side of the equipment or inside the inverter. This protection system, designed
to disconnect the inverter in the event of an accidental indirect contact or a breach of the insulation, is
not capable of protecting the inverter from a dead short of one of the poles of the solar array when the
equipment is connected to the AC grid (such an event could damage the inverter and such damage is not
covered by the warranty). Further, this protection system is not capable of protecting the AC line to which
the inverter is connected, for which you are recommended to install an automatic circuit breaker which will
cut out in the event of a leakage on that line. The following table shows the characteristics of such a device
that would be required for the various inverter models.
characteristics
automatic
circuit Breaker
inVeRteR model
PVI-3.0-TL-OUTD PVI-3.6-TL-OUTD PVI-4.2-TL-OUTD PVI-5000-TL-OUTD PVI-6000-TL-OUTD PVI-10.0-TL-OUTD PVI-12.5-TL-OUTD
Type AUTOMATIC CIRCUIT BREAKER WITH MAGNOTHERMIC-DIFFERENTIAL PROTECTION
Rated Voltage 230Vac 400Vac
Rated Current 20 20 25 32 40 20 25
Magnetic Protection Characteristics B/C
Differential Protection Type A/AC
Differential Sensitivity 300mA
Number of Poles 2 3/4