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NETA 3 Questions 4 Questions with Detailed
Verified Answers
What color test decal you affix to a protective device with a minor
mechanical deficiency that does not affect its fault detection and
operation? Ans: Yellow
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 Ans: 50
The _____ winding is made of many turns of small wire and is located at
the top of the stator core. Ans: Start
Excitation-current tests of large dry-type transformer windings are
required for maintenance testing but not acceptance testing.
True or false Ans: True
The Boolean expression for a 3-input AND gate is ______. Ans: 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 Ans: 14/20
For providing short circuit protection, a fuse rated in continuous amperes
shall not exceed _____ times the ampacity of the conductor. Ans: 3
n a DC circuit, fully charged capacitors act as Ans: Open circuits
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What is the maximum acceptable value for Total Decomposition Products
in a SF6 circuit breaker that has been in service for 3 years?_____ppm
Ans: 50
True or false Contactor coils are present in manual motor starters: Ans:
False
When testing new HV oil circuit breakers per NETA standards, which
inspection is optional? Ans: 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? Ans:
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
Ans: 120%
battery bank has batteries where the terminals are bulged and the seals
broken. This is likely from: Ans: Increasing plate growth
When a grounding electrode conductor or bonding jumper is connected to
a concrete-encased electrode (does not extend on to other types of
electrodes that require a larger size of conductor), the grounding
electrode conductor is not required to be larger than _____ copper wire
Ans: 4
NETA-MTS specifies electrical tests for medium-voltage SF6 switches.
Which of the following is an optional test per this standard Ans:
Insulating gas sample
Which of the following formulas is used to determine the fusing factor for
a HRC fuse Ans: Minimum fusing current / Current rating
Third harmonic currents are known as Ans: Zero sequence harmonics
NETA 3 Questions 4 Questions with Detailed
Verified Answers
What color test decal you affix to a protective device with a minor
mechanical deficiency that does not affect its fault detection and
operation? Ans: Yellow
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 Ans: 50
The _____ winding is made of many turns of small wire and is located at
the top of the stator core. Ans: Start
Excitation-current tests of large dry-type transformer windings are
required for maintenance testing but not acceptance testing.
True or false Ans: True
The Boolean expression for a 3-input AND gate is ______. Ans: 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 Ans: 14/20
For providing short circuit protection, a fuse rated in continuous amperes
shall not exceed _____ times the ampacity of the conductor. Ans: 3
n a DC circuit, fully charged capacitors act as Ans: Open circuits
, Page | 2
What is the maximum acceptable value for Total Decomposition Products
in a SF6 circuit breaker that has been in service for 3 years?_____ppm
Ans: 50
True or false Contactor coils are present in manual motor starters: Ans:
False
When testing new HV oil circuit breakers per NETA standards, which
inspection is optional? Ans: 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? Ans:
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
Ans: 120%
battery bank has batteries where the terminals are bulged and the seals
broken. This is likely from: Ans: Increasing plate growth
When a grounding electrode conductor or bonding jumper is connected to
a concrete-encased electrode (does not extend on to other types of
electrodes that require a larger size of conductor), the grounding
electrode conductor is not required to be larger than _____ copper wire
Ans: 4
NETA-MTS specifies electrical tests for medium-voltage SF6 switches.
Which of the following is an optional test per this standard Ans:
Insulating gas sample
Which of the following formulas is used to determine the fusing factor for
a HRC fuse Ans: Minimum fusing current / Current rating
Third harmonic currents are known as Ans: Zero sequence harmonics
