User manual

• Installations in Canada should be in accordance with the Canadian Electrical
Code (CEC) or applicable local standards.
•
Use only conductors with an insulation rating of 90°C minimum insulation
rating.
• This equipment is intended to be installed as part of a permanently grounded
electrical system per the NEC or local standards.
The inverter is electrically connected to the DC photovoltaic array in the DC
combiner sub panel which includes a positive, negative, and grounded bus bar. The
PV array is grounded internally by means of the GFDI.
The inverter can be ordered with an optional fused subcombiner. The fused
subcombiners have individual input terminals for each fuse block. These terminals
require the use of a torque wrench to properly install the interface cables. Use proper
torque values of DC subcombiner box wire mounting hardware.
The inverter is factory configured for the appropriate three-phase output:
• PVP250kW and PVP260kW three-phase 480 VAC or three-phase 600 VAC
output
The inverter is electrically connected to 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 connector certified for use with the selected interface cables:
• Crimp-on type ring terminal
• Compression type lug
Ensure phase cables run together through conduit and gland plates, which allows any
inductive currents produced to be cancelled out. Use proper torque values for
terminal lug mounting hardware.
A copper clad earth grounding electrode must be installed within three feet (one
meter) of the unit. The AC ground busbar located in the AC section, lower front
compartment, must be used as the single point connection to the earth grounding
electrode for the inverter system. For the convenience of installers, a DC ground bus
bar is provided. The DC and AC ground bus bars are solidly bonded together inside
the cabinet. If present, a DC Grounding Electrode Conductor (GEC) may be bonded
to the DC ground bar. Where permitted by NEC, a single conductor that meets all the
requirements of both DC GEC and AC equipment ground may be bonded to the AC
ground bar.
AC overcurrent protection for the utility interconnect (grid-tied) must be provided by
installers as part of the installation.
Fire Prevention
Care must be exercised when installing DC and AC connections within the inverter.
Follow all instructions in this manual to ensure proper and safe operation of this unit.
Advanced Energy® PVP250kW and PVP260kW Inverters
570-1001792-05A Safety and Product Compliance Guidelines 1‑7