Xantrex Technology PV-30208 - Manual (Page 18)

PV-30208 Photovoltaic Inverter
Operation and Maintenance Manual
Copyright 2003, Xantrex Technology
DOCUMENT: 151315 4-3
SECTION 4
OPERATION
Ground Fault Detection
The PV-30208 is capable of detecting PV array ground fault current. To enable this feature, a wire must
be installed between ground and the desired ground reference point on the PV array. For bipolar PV
array configurations, the ground wire must be connected between the PV array neutral point and TB-
NEUT terminal block. For grounded monopolar PV array configurations, the ground wire must be
connected between TBDC- and TB NEUT terminal blocks (see the following diagram for clarification
and the system schematic in Section 7). A jumper wire is included separately with the PV-30208. This
feature is enabled for grounded monopolar pv array configuration at the time of shipment. For bipolar
pv array configuration, the jumper wire must be removed between TBDC- and TB NEUT.
PV-30208 DC Input
Terminal Block
Diagram Of Bipolar Ground Fault Detection Configuration
To upper
enclosure
Inverter
Chassis
PV-30208 DC
Input Terminal
Block
To upper
enclosure
Jumper Wire
For PV Ground
Fault Detection
Diagram Of Monopolar Configuration
Inverter
Chassis