ENPHASE SOLAR PV INSTALLATION CERTIFICATION
TRAINING EXAM SCRIPT 2025/2026 QUESTIONS WITH
ANSWERS GRADED A+
✔✔Select the parts of the CT (Select all that apply):
A. Core
B. Primary conductor
C. Secondary windings - ✔✔A. Core
C. Secondary windings
✔✔True or false: The statement below describes how the CT functions.
AC current passes through a conductor routed though the CT. This produces an
alternating magnetic field in the core which induces an alternating current in the
secondary windings. The secondary wires are the blue and white wires connected to the
Envoy. The reduced or low voltage signal generated by current passing thru the CT is
how the Envoy measures AC current. - ✔✔True
✔✔When is the installation of CTs required?
A. When required for revenue grade metering
B. When you install Enphase storage products
C. When utilities require it for power export limiting
D. All of the above - ✔✔D. All of the above
✔✔Which of the CTs is a split core?
A. Production CT
B. Consumption CT - ✔✔B. Consumption CT
✔✔How many consumption CTs are required for consumption monitoring?
A. 3
B. 2
, C. 1 - ✔✔B. 2
✔✔True or false: CTs have a polarity which is determined by the direction of the
secondary winding. - ✔✔True
✔✔When installing the CTs, what two items can be verified for correct polarity?
A. CT sensor
B. CT wiring at the Envoy terminal blocks
C. Neutral and grounding bar
D. A & B - ✔✔A. CT sensor
✔✔_______ are marked with arrows to indicate the expected flow of current.
A. Envoy power terminals
B. Envoy terminal blocks
C. CTs
D. Bus bars - ✔✔C. CTs
✔✔In a residential PV system, _____ production CT(s) are required to measure PV
generation?
A. 2
B. 3
C. 1 - ✔✔C. 1
✔✔When using a production CT, what PV branch circuit conductors are used to
measure PV generation?
A. L1 and L2
B. L2
C. L1 - ✔✔C. L1
✔✔(Complete the sentence) In order to measure the current from the utility, make sure
the CT arrow is facing ______ the utility, towards your loads.
TRAINING EXAM SCRIPT 2025/2026 QUESTIONS WITH
ANSWERS GRADED A+
✔✔Select the parts of the CT (Select all that apply):
A. Core
B. Primary conductor
C. Secondary windings - ✔✔A. Core
C. Secondary windings
✔✔True or false: The statement below describes how the CT functions.
AC current passes through a conductor routed though the CT. This produces an
alternating magnetic field in the core which induces an alternating current in the
secondary windings. The secondary wires are the blue and white wires connected to the
Envoy. The reduced or low voltage signal generated by current passing thru the CT is
how the Envoy measures AC current. - ✔✔True
✔✔When is the installation of CTs required?
A. When required for revenue grade metering
B. When you install Enphase storage products
C. When utilities require it for power export limiting
D. All of the above - ✔✔D. All of the above
✔✔Which of the CTs is a split core?
A. Production CT
B. Consumption CT - ✔✔B. Consumption CT
✔✔How many consumption CTs are required for consumption monitoring?
A. 3
B. 2
, C. 1 - ✔✔B. 2
✔✔True or false: CTs have a polarity which is determined by the direction of the
secondary winding. - ✔✔True
✔✔When installing the CTs, what two items can be verified for correct polarity?
A. CT sensor
B. CT wiring at the Envoy terminal blocks
C. Neutral and grounding bar
D. A & B - ✔✔A. CT sensor
✔✔_______ are marked with arrows to indicate the expected flow of current.
A. Envoy power terminals
B. Envoy terminal blocks
C. CTs
D. Bus bars - ✔✔C. CTs
✔✔In a residential PV system, _____ production CT(s) are required to measure PV
generation?
A. 2
B. 3
C. 1 - ✔✔C. 1
✔✔When using a production CT, what PV branch circuit conductors are used to
measure PV generation?
A. L1 and L2
B. L2
C. L1 - ✔✔C. L1
✔✔(Complete the sentence) In order to measure the current from the utility, make sure
the CT arrow is facing ______ the utility, towards your loads.
