NETA 3 EXAM 2 ACTUAL PAPER 2026
QUESTIONS SOLUTIONS GRADED A+
◉ A new 69kV-35kV power transformer filled with FR3 is being
placed into service, what is the minimum acceptable dielectric
breakdown voltage for a transformer of this voltage class when
tested in accordance with ASTM D1816 (2mm gap)? kV Answer: 50
◉ The _____ winding is made of many turns of small wire and is
located at the top of the stator core. Answer: Start
◉ Excitation-current tests of large dry-type transformer windings
are required for maintenance testing but not acceptance testing.
True or false Answer: True
◉ The Boolean expression for a 3-input AND gate is ______. Answer:
Q=ABC
◉ What would be the appropriate acceptance test voltage for a
withstand test on a new 8.25kV, 1200A rated metal-enclosed
interrupter switchgear per NETA standards? kVAC/kVDC Answer:
14/20
, ◉ For providing short circuit protection, a fuse rated in continuous
amperes shall not exceed _____ times the ampacity of the conductor.
Answer: 3
◉ n a DC circuit, fully charged capacitors act as Answer: Open
circuits
◉ What is the maximum acceptable value for Total Decomposition
Products in a SF6 circuit breaker that has been in service for 3
years?_____ppm Answer: 50
◉ True or false Contactor coils are present in manual motor starters:
Answer: False
◉ When testing new HV oil circuit breakers per NETA standards,
which inspection is optional? Answer: Trip/close coil current
signature analysis
◉ In a circuit containing resistance and inductance, the time
required for current to reach its full value involves which of the
following? Answer: T=L/R
◉ In a typical stepped distance protection scheme, Zone 2 is set to
protect _____ of the transmission line with a time delay of 0.25-0.4
seconds Answer: 120%
QUESTIONS SOLUTIONS GRADED A+
◉ A new 69kV-35kV power transformer filled with FR3 is being
placed into service, what is the minimum acceptable dielectric
breakdown voltage for a transformer of this voltage class when
tested in accordance with ASTM D1816 (2mm gap)? kV Answer: 50
◉ The _____ winding is made of many turns of small wire and is
located at the top of the stator core. Answer: Start
◉ Excitation-current tests of large dry-type transformer windings
are required for maintenance testing but not acceptance testing.
True or false Answer: True
◉ The Boolean expression for a 3-input AND gate is ______. Answer:
Q=ABC
◉ What would be the appropriate acceptance test voltage for a
withstand test on a new 8.25kV, 1200A rated metal-enclosed
interrupter switchgear per NETA standards? kVAC/kVDC Answer:
14/20
, ◉ For providing short circuit protection, a fuse rated in continuous
amperes shall not exceed _____ times the ampacity of the conductor.
Answer: 3
◉ n a DC circuit, fully charged capacitors act as Answer: Open
circuits
◉ What is the maximum acceptable value for Total Decomposition
Products in a SF6 circuit breaker that has been in service for 3
years?_____ppm Answer: 50
◉ True or false Contactor coils are present in manual motor starters:
Answer: False
◉ When testing new HV oil circuit breakers per NETA standards,
which inspection is optional? Answer: Trip/close coil current
signature analysis
◉ In a circuit containing resistance and inductance, the time
required for current to reach its full value involves which of the
following? Answer: T=L/R
◉ In a typical stepped distance protection scheme, Zone 2 is set to
protect _____ of the transmission line with a time delay of 0.25-0.4
seconds Answer: 120%
