User Manual
3 Product Description
9
3.3 Identifying the PVS
The appearance of the PVS is shown in the figure below (take PVS-16M-HV for
example).
A
B
C
Fig. 3-2
Appearance of PVS-16M-HV
No.
Name
Description
A
Lockhole
-
B
Fixing hanger
Allow fixing of the PVS
C
Handle
Used to move the PVS
3.4 Fuse rating
In power system, fuses are used for over-current protection. Choosing
right-rating fuses is very important to ensure safety operation.
The minimum current rating of a fuse can be calculated with short circuit current
(Isc) of PV arrays. Except for some special needs, the recommended rating
would be 1.5×Isc.
Users can calculate fuse rating easily. If maximum current of PV arrays=9A,
and DC voltage range of PV arrays=500 - 1500V, then the fuse rating will be
1500V/(15A).
3.5 DC switch rating
The DC voltage of the switch is decided by the nameplate. For example, from
the nameplate it can be seen that the maximum DC voltage of the PV array is
15
00V, i.e. DC switch’s withstanding-voltage is at least 1500V. DC switch this
product is equipped meets the required withstanding-voltage degree.
