Training Questions With 100% verified solutions
The Enphase Q cable plugs into_______.
A. Installer Toolkit
B. Enphase microinverters
C. IQ Envoy
D. Enlighten - ANSWER B. Enphase microinverters
Enphase Q Raw cable has what size conductors in it?
A. #14 AWG
B. #12 AWG
C. #10 AWG
D. #8 AWG - ANSWER B. #12 AWG
Where do you go to find data on a system you have built?
A. personal email
B. Enlighten
C. Enphase.com
D. You have to go back to the site - ANSWER B. Enlighten
, True or false: Enphase Q Cable works with other manufacturers'
equipment. - ANSWER False
What impact does temperature have on solar panels?
A. Direct relationship, hotter panels convert more light energy into
electricity
B. Inverse relationship, hotter solar panels have lower voltage,
cooler panels yields higher voltage and more power
C. Temperature has little impact on solar panels, AC voltage is
more crucial, next is light intensity
D. They increase power output when warmer due to less
resistance - ANSWER
Do solar panels deliver a constant STC rated output when
installed at most homes or businesses?
A. No, but it is required that solar panels never exceed the
inverter rating
B. No, solar panels have a maximum output rating and do not
exceed that
C. No, solar panels typically are warmer and have less light
reaching them than in the STC factory test conditions
D. Yes, if they didn't the customers would return them or get payment as
part of their 20 year warranties - ANSWER C. No, solar panels typically
are warmer and have less light reaching them than in the STC factory test
conditions
, When designing solar systems, selecting the right microinverter and solar
panel pairing based on power output requires analysis. Which of the
following statements is the most accurate?
A. Because microinverters are a series DC string circuit, the
correct minimum and maximum number must be carefully
observed
B. To claim STCs the output of each microinverter can be no less
than 75% of the output of the solar panel that it is connected to
C. Selecting solar modules with power output lower than the inverter
output is a good idea because all solar panel output will always get
captured
D. You cannot have the solar panel DC wattage exceed the
microinverter output wattage as the microinverter could get
damaged - ANSWER UNSURE, but it's either
B. To claim STCs the output of each microinverter can be no less
than 75% of the output of the solar panel that it is connected to
OR
C. Selecting solar modules with power output lower than the inverter output
is a good idea because all solar panel output will always get captured
(I tried A and D and both were wrong, but I have no more
attempts - so let me know which one it is so I can update this)
What factor(s) primarily impact the maximum quantity of
microinverters per AC branch circuit?
A. Light intensity and temperature averages at the installation site
, B. Conductor size (12 AWG) enclosed in the Q cable
C. Microinverter DC input from solar panels
D. Microinverter AC voltage and grid frequency - ANSWER B.
Conductor size (12 AWG) enclosed in the Q cable
What is the maximum circuit breaker current size allowed for each PV AC
branch circuit using a 1 phase Q relay in single phase installations?
A. 20 AMP
B. 15 AMP
C. 32 AMP
D. No maximum it depends on microinverter count - ANSWER A.
20 AMP
What is the maximum circuit breaker current size allowed for each PV AC
branch circuit using multiphase phase Q relay and 3phase Q wiring in a
multiphase installation?
A. 20 AMP
B. 32 AMP
C. 25 AMP - ANSWER C. 25 AMP
Enphase recommends that from the point of supply to the AC
isolator, PV system designs should keep Vrise under _____. -
ANSWER 2%
A designer observes that a system design exceeds 2% Vrise (voltage
rise).What design strategies can be used to reduce Vrise?
A. Use larger gauge AC wiring