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Dear NETA,
A few months ago I posted these questions under the thread **Remembered NETA 2 questions**. After soaking in all input from this forum (thank you to ALL who contributed to my posts) and continuing my education on items I was not that familiar with, I can successfully say I passed your NETA 2. It was a daunting task and my brain hurts from all the information I have gone over the past few months. After my wife almost left me because my head was more concentrated on your standards, rather than her attention, I now understand the concept.
It truly does take FIELD EXPERIENCE to pass this test. IF you are a new tech to the industry, do not get discouraged if you fail this test once, twice, three times, or in my case, 4 times! It took getting jobs that actually work on the equipment listed to retain the knowledge I finally know. I have been with a NETA firm for 5 years. Before that, I was a journeyman-lineman with an added 5 years. 10 total in the high voltage electrical industry. I had almost given up on the thought of passing this test. However, with patience comes reward.
You WILL feel like this test is too much! Dear NETA, IT IS!!
There is no way to your standards that a 2 year man/woman should know the required knowledge to pass this test. I understand I may receive backlash from this, but give us a break. I actually studied more NETA 3 questions than NETA 2 and I feel that is how I was able to pass this test. When these standards were written, it was the technological ice age. I understand they are updated. But so it my IPhone X. Now, every technician is equipped with a computer, smart phone, and all the resources available to him/her so that whatever standard is required, we can easily find the information within a matter of minutes. Can we not come to terms with a society that is so technologically advanced that we can't even consider a vote on "open book" for some tests?
I have not posted these questions as a "cheat sheet". My integrity and willingness to find this information on my own should show my willingness to thrive in this fast paced, sleep-deprived trade.
Every NETA company can tell you finding help is scarce, especially in this economy. I urge any NETA member reading this to consider the future of this business. Help us help you. Word on the street is that you revamped the NETA 2 test because one lackluster company was caught cheating. Must we and all future technicians suffer from the mishap of one company? Or can you come to terms with the new age and allow anyone with a drive for excellence and a willingness to learn overcome such a complicated, extensive test?
Either way.
I passed. On to your level 3!
A multimeter is device that is connected:
Low impedance, series
Low impedance, parallel
high impedance, series
high impedance, parallel (correct answer)
Blow out coils are found on AIR circuit breakers
Puffer tubes are found on AIR circuit breakers to aid in the extinguishing of the arc.
Thermography scans require minimum 40% load.
>15 C in a thermography scan denotes major discrepancy; repair immediately.
SAE 5 Bolt (know what it looks like)
Highest pickup for LV-480 system ground?
600A
800A
1000A
1200A (Correct Answer)
Why do an insulation test between the neutral and ground?
To ensure that no other grounds are landed which could result in GF sensitivity
Interlock on MV MCC between switch and contactor. Why?
The interlock prevents the switch from being opened while the contactor is closed!
Which gauge should be recorded in oil sample report so that can be verification of moisture/no moisture in XFMR paper?
Oil Temperature
What is the role of a VFD?
To control the speed of AC induction motors.
27 device
Undervoltage
51:Time overcurrent
50: Instantaneous Time Overcurrent
52: AC Circuit Breaker
59: over voltage
86: Lockout
***87: Differential: The question on the test gives you a schematic with a picture of an 87 relay (with other ANSI device numbered symbols.) Along with that picture you’ll have two lines that go to two different CTs. The question will be, what CTs are associated with the differential relay? If you know 87 is differential relay, you’ll know what it feeds. In my case, it was an 800:5 CT and a 1200:5 CT)
37: Undercurrent
47: Phase Sequence Voltage Relay
13.8 Rated voltage. What minimum insulated gloves?
Class 2
Unit for Apparent Power?
VA
At what level does ventricular fibrillation occur?
100 mA-2000 mA
Testing circuit motor circuits would best be achieved by use of?
Ohmmeter (Correct Answer)
Phase-angle meter
Ammeter
Megometer
The Standard for Testing UPS batteries is:
IEEE 450
Insulated Gloves should be electrically tested every:
6 months
Disadvantage of (dc) hipot testing while testing MV shielded cables:
can’t detect faults
cant detect high impedance
requires high amounts of voltage (correct answer)
test set not easily portable
Which of the following is not required by NETA-ATS for AC induction motors?
Power factor
What are considered Network protectors?
A network protector is a special self-contained air breaker or switching unit having a full complement of current, potential and control transformers, as well as relay functionality.
Batteries are measured in Amp/hours
The unit for arc flash is calories per centimeter squared.
You arrive to find a MV circuit breaker open. At the mechanical switch to the unit, you see the mechanical switch open with a red flag. What would this indicate?
The breaker lost control power
The breaker was opened with the mechanical switch (correct answer)
The open signal was the last command given
The mechanical indicator is no good
What test is required for a 15 KV switch
Hipotential (Correct Answer)
power factor
TTR
Excitation
Which Transformer test could magnetize the windings?
PF
TTR
Excitation (Correct Answer)
Zero Sequence Impedance
Know what a tap changer looks like in a XFMR.
Picture of a DETC
If a motor and chain are present on an OLTC, once the tap is raised to the highest level and its still giving a raised signal, what should the motor OLTC do?
motor should stop, stay at highest level (Correct Answer)
motor continue til raise signal is gone
motor continue in reverse til back to neutral
motor stop, cool down
If a circuit is de-energized, locked-out, but NOT verified zero voltage and no protective grounds are in place the work is considered:
NOT in a work-safe condition
Arcing in oil sample represents what chemical.
Acetelyne
Batteries can produce dangerous levels of hydrogen.
Outdoor switchgear visual, mechanical inspections.
Clean insulators
Outdoor panel class is:
3R
For a switchgear space heater, according to Ohms Law as the voltage of the unit increases, the current decreases.
Which has the greatest TIME difference?
Extremely inverse
Inverse
moderately inverse
slightly inverse
Micro ohms to Ohms.
256 micro-ohms is .000256 ohms
System voltage could be read through a micro processing relay by which of the following?
PTs (Correct Answer)
CTs
Phase Angle
Main Breaker interrupting current
How could you recognize the difference between fiber optic cables and insulated cables?
insulated cables are shield
fiber optic cables require light to admit information
fibers optic cables are flexible
fiber contains RJ45 terminations (Correct Answer)
Which type of cables if used for LV conductors?
THHN (Correct Answer)
SIS
RH
MV-905
What type of switch is best used for commercial/light industrial services rated 2000/4000 amps?
Safety switch
Metal enclosed interrupter
Bolted pressure (Correct Answer)
86 is a lockout relay
According to NETA MTS-2019, what is the test voltage for a dc hipot voltage for a 15 KV SWTCH?
28.8 (Correct Answer)
34.4
18
64
When taking MTS oil samples in the field on an oil filled apparatus, bubbles in an oil sample:
Should be removed by the oil sample testing firm before testing
should be removed immediately (Correct Answer)
should not be removed before shipping to testing firm
are acceptable to certain limits
During ATS testing, fuse readings on a MV Fused Switch deviate by than 30%. What is the NETA-recommendation?
Replace
Inspect (Correct Answer)
Verify
FUSES Should not deviate by more than 15%
***49.) Low resistance ohm (contact resistance) readings should not deviate 50% from the?
Highest reading
mean reading
lowest value (Correct Answer)
median value
***50.) The small notch in a fuse is for what?
A rejection feature is used to prevent fuses with a lower voltage or interrupting rating (such as Class H and Midget fuses) from being used in a circuit that needs a higher rating. Class R and CC fuseblocks incorporate a built-in rejection feature while Class J and T blocks reject based on physical size
On a window CT with primary power going through H1-H2, What terminal will the secondary voltage exit from?
A) Line Side
B) Load Side
C) X1 (Correct Answer)
D) X2
Applying a solidly grounded wire immediately after performing a high-potential test:
Will ensure immediate personally safety.
May damage the insulation under test. (Correct Answer)
Which of the following is LEAST likely to contain a blown fuse trip device?
A. molded case circuit breaker
B. 360 amp 4.16 KV motor starter
C. low voltage power circuit breaker
D. 200 amp fused safety switch (Correct Answer)
E. none of the above
Transformer polarity is best achieved by reading between:
H1-H2
H0-X0
H1-X1 (Correct Answer)
X1-X2
TTR calculation on a DELTA-WYE Transformer
3 Problems on Power Triangle(Find KVAR) a squared + b squared= c squared
Grounding (Main Bonding Jumper)
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NETA Level III
Originally Posted by A_Powers1992
