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Installation and Operation Guide SOLECTRIA XGI 1000 (Rev D)
AC Connection
3.4
Turn the AC Switch OFF before wiring. The switch is located on the right side of the wiring box, see Figure 2-3.
Turn AC Switch to OFF
Verify the absence of AC voltage.
Transformer Configurations
Grid Mismatch
If the grid does not match the requirements of the inverter, the inverter will not start.
Check with your local electric utility before selecting a grid profile.
The system must comply with National Electrical Code ANSI/NFPA 70 and with all local
rules and safety regulations before the inverter can be operated.
The inverter must be connected to a transformer that has a grounded Wye configuration on the inverter side (see
Figure 3-12 for correct configuration and Figure 3-13 for incorrect configuration). The neutral conductor is used
by the inverter for voltage sensing and does not carry current. Therefore, the size of the neutral conductor may
be reduced to the same size (not smaller) as the EGC. Acceptable service configurations are depicted in Figure
3-12.
It is permissible to connect the neutral terminal of the inverter to ground inside the inverter wiring box through
the use of a jumper. In this configuration, no neutral conductor is required. If terminated properly this connection
will not impact the function of the inverter or create an unsafe condition. Ultimate approval of such configuration
lies with the authority having jurisdiction (AHJ).
A jumper between Ground and Neutral may be used if:
Use of a jumper is approved by the AHJ (required)
There is no accessible Neutral wire
DOCR-070733-D
Figure 3-12 Permitted Transformer Configurations
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