Xantrex Technology PV100S-480 Visual Inspection, Isolation Transformer Wye/Wye, Corrective Action

Verification

Visual Inspection, Isolation Transformer Wye/Wye

To perform a visual inspection of the Isolation Transformer Wye/Wye:

1.	Ensure that the AC and DC Disconnect Switches, as well as any utility	❐
	Interconnect circuit breakers or main disconnect switches, are open.
2.	Verify all conductor and wiring connections interfacing with the	❐
	PV100S are tightened to the correct torque value.
	For specific torque values, see Table 3-1, “AC Terminal Wire Gauge,
	Bolt Size, and Torque Values” on page 3–12 and Table 3-2, “DC
	Terminal Wire Gauge, Bolt Size, and Torque Values” on page 3–12.
3.	Verify the AC power conductors terminated at T6-X1, T6-X2, T6-X3	❐
	within the Transformer Enclosure are terminated correctly and properly
	sequenced.
4.	Ensure the neutral on the inverter side (T6-X0) is left floating. If the	❐
	inverter side neutral is tied to ground, the inverter will not function
	properly. Also, ensure that the neutral is not bonded to the isolation
	transformer frame.

Date Checks Completed

Corrective Action

Perform after initial inspection (if required):

1.Correct any necessary repairs pertaining to the previous inspection steps.

2.Replace the wiring access panels to the AC interface/transformer assembly and Main Inverter Enclosure.

3.Replace the latches and close the doors of the Main Inverter Enclosure, the AC and DC Interface Enclosures, and communication enclosure.

4.Ensure that the AC and DC Disconnect Switches, as well as any utility interconnect circuit breaker or main disconnect circuit breaker, are left open.

4–4 152315 Rev C