PVI 36TL Installation and Operation Manual (Rev H)
DOCR-070588-H
Page
40
of
120
(3) When the output of the inverter is connected to the grid, an external AC circuit
breaker is required to be installed to safely disconnect the inverter from the grid when
overcurrent occurs.
(5) The Grid connection type could be optional, which can be (L1,L2, L3,N,PE).
Either 3 pole or 4 pole AC circuit breaker should be selected as per the following
specifications:
Table 2.9 - AC Breaker Selection
Inverter
AC breaker rated current
（
A
）
PVI 36TL
60
Acceptable Transformer Configurations:
Description
Configuration
Inverter
Compatibility
4 Wire WYE
(3 phase + Neutral
+GND)
Compatible
with 36TL
Other Configurations
All other configurations not mentioned in
this document, such as Corner Grounded
Delta
Not compatible
with 36TL
When interfacing with a Wye-grounded transformer winding, a neutral is required.
Since the neutral is used by the inverter for voltage sensing, the neutral does not carry
full load amps. The size of the neutral may be reduced to a conductor no smaller than
the EGC.
When installing multiple inverters for parallel operation connected to a single
transformer the kVA rating of the transformer must be at least 5% greater than the
total inverter kVA rating that feed the transformer. Up to 70 inverters may be
connected in parallel for use with a single transformer.
