Dulas VC150SDD, Инструкция по установке и руководство техника

Страница: 23 / 47

VC150SDD Installation & Technician’s Manual
Page 23 of 47
DO NOT DISCONNECT THE SOLAR CONNECTORS UNDER LOAD.
If you need to disconnect any of the solar connectors (at the solar array or at the refrigerator)
please ensure that the refrigerator has been turned off at the PV switch (located at the back of the
refrigerator) before disconnecting.
Using the tool provided (or your fingers) squeeze the catches of the adjoining solar connector
allowing you to pull the PV connectors apart. Do not use inappropriate tools to disconnect the solar
connectors as this may cause permanent damage and an electrical hazard.
13. Commissioning Solar array
To confirm that the solar array is properly connected and working to its full capacity carry out the
following steps in strong sunshine:
1. Measure the Short Circuit Current (Isc) of the individual solar panels before connecting
them together. You should measure approximately 9A (refer to PV module data label for
the exact value).
2. Connect all the panels together and connect them to the solar array output cable.
3. Cover all the solar panels with either cardboard or a thick blanket and ensure they remain
covered for the duration of the commissioning.
4. Uncover one panel only and measure the Isc at the end of the array cable. It should be
equal to the Isc of a single panel.
5. Cover up the first panel and uncover the second panel. Repeat the Isc measurement at
the end of the array cable.
6. Continue until all three panels have been tested and you have confirmed the integrity of
the array cabling.
Alternatively, if you have a DC clamp meter then you can measure the full array Isc directly by
joining the ends of the array cable together and measuring the current in the cable.