Questions With 100% Verified Solutions
When the grid is present during sun-hours, this system is supplying power
to the main service panel. What type of loads will it serve during a grid
outage?
A. It will not feed any loads as it will not operate during the grid
outage
B. It depends on the time of the day and the irradiance
C. Refrigerator and lights
D. Only lights because it has only three branch circuits - ANSWER A. It
will not feed any loads as it will not operate during the grid outage
When will the IQ8 microinverters supply power to the protected
loads panel if the grid is down?
A. During the day if the generator stops.
B. IQ8 microinverters are grid forming so they will operate day
and night with or without generator.
C. Only during sun-hours and enough solar irradiance for the
microinverter to operate.
D. During sun-hours if the generator is running to provide the
voltage reference. - ANSWER C. Only during sun-hours and
enough solar irradiance for the microinverter to operate.
True or false: This system will supply power during grid outages during
sun-hours or at night because the PV array power is larger than 3.5 times
the largest single load power. - ANSWER False
, Which Enpower breakers must be ordered separately, be specified in the
single line diagram and be listed in the bill of materials?
A. All except 6
B. 1 and 2
C. All but 4 and 5 because they are identical and preinstalled
D. 4 and 5 - ANSWER A. All except 6
What electrical safety reason is involved in the requirement that Encharge
and Generator breakers must have a hold down kit to comply with NEC
2017 710.15(E)?
A. Both breakers are two-pole 240 Volts and a secondary power
source
B. ESS and Generators are considered high voltage
C. When the grid is down, the Encharge breaker will be energized, and the
Generator breaker can also be energized if Enpower starts the
generator to supplement energy demand. The hold down kit prevents
exposure to electric shock and arc flash if a person accidentally
attempts to remove the breakers during a grid outage - ANSWER C.
When the grid is down, the Encharge breaker will be energized, and the
Generator breaker can also be energized if Enpower starts the
generator to supplement energy demand. The hold down kit prevents
exposure to electric shock and arc flash if a person accidentally
attempts to remove the breakers during a grid outage
Which Enpower breaker can be used as PV rapid shutdown
initiation device?
A. PV AC combiner breaker