12
•. Appropriate.meter.to.verify.the.circuits.are.safely.de-energized.(1000VAC.and.DC.
rated,.minimum)
•. Any.other.equipment.as.applicable.to.your.operation.as.required.by.national,.state.
and.local.regulations
2.4 Wiring Requirement
!
WARNING
In accordance with the NEC, ANSI/NFPA70, connect only to a circuit
provided with a 400 amp maximum branch circuit overcurrent protection.
Fire and Explosion Prevention
Care must be exercised when installing DC and AC hookups within the inverter. Follow
all instructions in this manual to ensure proper and safe operation of this unit.
!
DANGER
Risk of Electrical Shock. In the event of a fire, disconnect power to the
inverter and do not attempt to use a water based fire extinguisher. Utilize only
a Class C extinguisher rated for electrical fire.
Wiring Information
All wiring methods and materials shall be in accordance with the NEC ANSI NFPA 70
as well as all state and local code requirements. Use only conductors with an insulation
rating of 90
o
C (minimum).
The inverter has a three-phase 480VAC output. The inverter is interfaced with the utility
grid at the AC landing within the AC section on the front right side of the inverter. These
terminals require the use of a UL-approved crimp-on type ring terminal or a UL-approved
compression type lug certified for use with the chosen interface cables. Ensure similar
cables run together in conduit runs and through gland plates, which allows any inductive
currents produced to be cancelled out. For proper torque values of terminal lugs mounting
hardware, see
Appendix D - Limits and Fault Codes.
!
CAUTION
Risk of Equipment Damage. There shall be no connection of the AC Neutral
terminals (H0 and X0) on the main transformer. These connections shall be
left floating.
The inverter is interfaced with the DC photovoltaic array in the DC Combiner sub panel.
Do not connect the negative pole on a negatively grounded system of the PV array
directly to ground, as this will bypass the critical GFDI and violate the NEC. The DC
Combiner sub panel includes a positive, negative and ground busbar. The inverter can
also be ordered with an optional fused subcombiner. The standard busbar has two rows of
Summary of Contents for PVP260kW
Page 1: ...97 600100 24 B02 PVP260kW Inverter INSTALLATION OPERATION MANUAL ...
Page 2: ......
Page 4: ...ii ...
Page 6: ...iv ...
Page 8: ...vi ...
Page 48: ...36 ...
Page 62: ...50 ...
Page 86: ...74 ...
Page 87: ...75 Appendix C Mechanical Drawings Figure C 1 Mechanical Drawings APPENDIX C ...
Page 88: ...76 Figure C 2 Mechanical Drawings ...
Page 94: ...82 ...
Page 96: ...84 ...
Page 104: ...92 Notes ...
Page 105: ......
Page 106: ...PO Box 7348 Bend OR 97708 P 541 312 3832 www pvpowered com ...