31
On site, reliably connect both or either of the two grounding points according to actual
conditions.The external grounding points of the MV Station can be grounded in the following
two manners:
• Connect the grounding cable to the external grounding points with M10 bolts, where the
recommended cable is of 50 mm
2
to 95 mm
2
.
• Weld the grounding steel flat onto the external grounding point, after which anti-
corrosion processing needs to be performed.
It is recommended that two points of the MV Station should be connected to the ground
system of the PV plant.
The MV Station needs to be grounded on site. The following operations should
also be conducted on site:
Measure the electrical conductivity between the device ground terminals and the total
equipotential connection copper bar to ensure the effectiveness of the internal ground
connection.
Perform the external grounding according to on-site situation and instructions of the plant
staff.
The grounding resistance should be no more than 4Ω.
The grounding resistance should be determined according to local standards and
regulations.
The country-specific regulations and standards must be observed at all times!
6.4.2 LV Side Connection
LV wiring terminals are located at the lower part of the LV cabinet, The terminal structure is
shown in the figure below.
System Manual 6 Electrical Installation
To Next Page
Loading...
