Installation manual

System Verification
152364 4–3
This manual is for use by qualified personnel only.
3. Visually inspect the utility transformer connections. If the inverter-side
winding of the transformer is configured Wye; ensure the transformer neutral
connection is left disconnected or floating. The neutral connection of the
transformer must be left disconnected or floating or damage to the inverter
will occur.
4. Perform corrective actions if required.
To perform a system verification of the Xantrex GT100 E:
1. Verify 400 Vac voltage across the bottom of the AC disconnect switch. If a
phase rotation meter is available, verify proper phase rotation at the AC
disconnect switch.
2. Close the door of the enclosure.
3. Close the AC disconnect switch.
4. Upon applying 400 Vac power to the Xantrex GT100 E, observe the operator
interface panel. After approximately 20 seconds, the panel should finish
initialization and will probably report a fault.
5. Remedy any faults reported. To clear a fault condition, press the <ENTER>
key twice.
6. It takes about 5 seconds for the fault to clear on the front panel. Once all
faults are cleared the system will read 'Key switch Disable'. If the fault
message does not change, the fault condition is still present. Refer to Xantrex
GT100 E 100 kW Grid-Tied Photovoltaic Inverter Operation and Maintenance
Manual (Part # 152365) Troubleshooting chapter for fault information.
7. Close the PV array string disconnect switches.
8. Place the
ON/OFF switch into the ON position.
9. Press <F2> on the operator interface panel. If the PV voltage is above the PV
start Voltage set point, the second line should read 'Waking up'. Once the PV
Start Time is exceeded, the Xantrex GT100 E should transition to 'Power
Tracking'.
Power Tracker Fine Tuning
All Xantrex GT100 E operating parameters have been set at the factory, based
upon prior experience with PV arrays. Contact your Schneider Electric distributor
for further information.
It is recommended that the Xantrex GT100 E be watched during Wake-Up and
Sleep Test. If the Xantrex GT100 E cycles between operating and sleeping at
either of these times, the condition set points are not set properly. Refer to
Xantrex GT100 E 100 kW Grid-Tied Photovoltaic Inverter Operation and
Maintenance Manual (Part # 152365) for detailed descriptions of Xantrex GT100
E state transitions. The Xantrex GT100 E should not cycle if the set points are set
properly.
Important: Some field adjustable parameters are password protected and may
only be changed by trained service technicians. In particular are parameters
relating to utility protection setpoints. Any changes to these setpoints should be
agreed upon by the local utility and the equipment owner.