Smart Power Systems HR-30 (3-Phase) - Manual (Page 23)

Smart Power
®
Systems
A. C. MODULAR GENERATOR SYSTEM
Page 22 of 52
8.
Connecting the generator to the Vehicle’s breaker panel:
a. The generator does not include the main 80A 3 phase circuit breaker. A main
breaker must be installed in a separate panel or in the vehicle breaker panel.
b. If a separate main breaker panel is installed, connect the 3 phases (black wires)
to the input terminals of the 80A 3 phase breaker. Neutral (white wire) should
pass through this box, isolated from ground. The ground (green wire) must be
bonded to the box. From this box, run conduit with the 5 wires (3 black, 1 white,
1 green) to the vehicle breaker panel. Conduit size, wire gauge, and wire
insulation must meet applicable national and local codes for the application.
Connect the vehicle breaker panel to the 3 main breaker output terminals. The
main breaker must be a UL/CSA approved, 3 phase 80A breaker rated at 250V,
it can not be created using a combination of single and two phase breakers.
The run from the generator to the main breaker panel should be made as short
as possible.
c. If the vehicle breaker panel includes the main breaker, wire the generator to the
panel, connecting the 3 phases (black wires) to the panel’s circuit breaker. The
circuit breaker must be a 3 phase 80A circuit breaker, it can not be created
using a combination of single and two phase breakers. Ground and Neutral
wires are attached to their appropriate tie points in the box.
WARNING:
Do not use 3 individual breakers or a 2 phase plus a single phase breaker as the
main breaker. After the main 3 phase 80A breaker, individual circuits can be
protected using single pole, double pole, or three pole circuit breakers.
d. When routing the generator output conduit/wiring to the panel, carefully cut the
conduit to length without cutting the wire insulation. A conduit connector has
been provided to connect the conduit to the panel.
e. Wires provided are as follows. Note that the phases are not labeled. If a 3
phase motor is used and it rotates backwards, swap any two of the black wires,
either coming from the generator or going to the motor to correct the direction of
rotation.
Phase A: Black wire (138 VAC to Neutral)
Phase B: Black wire (138 VAC to Neutral)
Phase C: Black wire (138 VAC to Neutral)
Neutral: White wire
Ground: Green wire
Note: The generator provides 240VAC 3 phase using Phases A, B, and C,
240V 2 phase using any pair of phases, and 138V single phase using any single
phase and neutral. It is possible to configure the system to provide 3 separate