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- Lightning Arrestor Ratings
  
  NETA Level 3 Exam 0
  
  What rating lightning arrestor would be suitable for a 13800/7900V system? Your Answer: 15kV Correct Answer: 10kV There are two different ratings for 13.8...
  
  Last post by breny426 11 Hours Ago
- Number of cycles completed in one second
  
  NETA Level 2 Exam 14
  
  2. The number of cycles completed in one second is called the Your Answer: hertz marked incorrect Hertz — A unit of measure for frequency. Replacing the...
  
  Last post by RabbleRabble 2 Days Ago
- Eaton RGH65K circuit breaker ground fault test
  
  Electrical Testing Talk 0
  
  Hello, I am acceptance testing the RGH 65K CB at .2 settings for ground fault using a secondary current test set. The GF pickup should trip around 200A....
  
  Last post by Misae1 1 Week Ago
- Panelboard Testing
  
  Electrical Testing Talk 3
  
  Why doesn't NETA specify tests for panelboard assemblies? We do a lot of acceptance testing and there's often language in the scope of work for panelboards...
  
  Last post by Kalbi_Rob 1 Week Ago
- NETA 4 Exam Questions 1/2017
  
  NETA Level 4 Exam 29
  
  I wrote my NETA 4 test today... and failed. Here are some tips. Don't waste your time reading the NETA study material that they give you. I went through it...
  
  Last post by timgshaw 1 Week Ago
- primary current inject breakers
  
  Electrical Testing Talk 2
  
  hello to all, I have 1 year testing experience and looking to further my advancement in the testing world. I want to learn how to primary inject breakers,...
  
  Last post by SecondGen 1 Week Ago
- Relay Test Supplies
  
  P&C / Relay Testing Talk 3
  
  I have found that the old site where I purchased relay testing cable, and various knick knacks for assisting with relay testing has gone away. I am curious if...
  
  Last post by SecondGen 1 Week Ago
- Fall-Of-Potential and Rainfall
  
  Electrical Testing Talk 2
  
  Is there a waiting period after it rains before conducting a fall of potential test?
  
  Last post by andrew 1 Week Ago
More topics: Electrical Testing Talk | Relay Testing Talk | Safety & Arc-Flash | NETA Exam Prep | NICET Certification Talk
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Technical Articles
- Motor Nameplate and Ratings Explained
  
  We explain the markings found in NEC along with other common terms and ratings included on motor nameplates. Continue Reading
  
  Posted By testguy August 30, 2020
- Electrical Drawings and Schematics Overview
  
  Designing, installing, and troubleshooting of electrical systems requires the use of various drawings to give engineers, installers, and technicians a visual representation of the systems they work... Continue Reading
  
  Posted By testguy July 19, 2020
- Insulating Liquids: Basic Properties, Types and Applications Explained
  
  Fluid inside electrical apparatus is the lifeblood that serves both as a dielectric and a cooling medium. Continue Reading
  
  Posted By testguy June 25, 2020
- 4 Critical Tests for Evaluating HV Circuit Breaker Performance
  
  Regardless of the breaker type, its important to test their components regularly to help ensure proper operation in case of a system fault or switching operation. Continue Reading
  
  Posted By testguy March 9, 2020
- Power Quality Analysis: Basic Theory and Applications Explained
  
  There is no such thing as perfect power quality in the real world. Service interruptions, equipment malfunction, and excess power consumption are all common symptoms of poor power quality. Continue Reading
  
  Posted By testguy November 23, 2019
- Magnetron Atmospheric Condition (MAC) Testing Principles
  
  Unlike the hipot test, testing vacuum interrupters utilizing magnetron atmospheric condition (MAC) principles can provide a viable means for determining the condition of vacuum interrupters prior to... Continue Reading
  
  Posted By testguy September 15, 2019
- Electrical Power System Studies Explained
  
  There are many different types of power system study, each with their own special purpose and calculation method. Each analysis is unique to a particular power system, any changes within the system... Continue Reading
  
  Posted By testguy August 9, 2019
- Power Distribution Unit (PDU) Applications, Testing & Maintenance
  
  Traditional data center power distribution designs consist of multiple PDUs delivering power to remote power panels (RPPs) throughout the building, which in turn deliver power to network hardware... Continue Reading
  
  Posted By testguy May 26, 2019
- Network Protector Basics: Applications, Operation, and Testing
  
  This guide covers network protector basic operation and maintenance procedures. Continue Reading
  
  Posted By testguy April 19, 2019
- Infrared Thermography for Electrical Distribution Systems
  
  This guide provides a basic overview of the theory and procedures involved with infrared scanning electrical distribution systems. Continue Reading
  
  Posted By testguy December 22, 2018
- Protective Relay Testing and Maintenance Overview
  
  A comprehensive overview of inspection and test procedures for protective relays in electrical power systems. Continue Reading
  
  Posted By testguy November 22, 2018
More Technical Articles...
Popular on TestGuy
- Number of cycles completed in one second
  
  NETA Level 2 Exam 14
  
  2. The number of cycles completed in one second is called the Your Answer: hertz marked incorrect Hertz — A unit of measure for frequency. Replacing the...
  
  Last post by RabbleRabble 1 Day Ago
- NETA Governance
  
  Electrical Testing Talk 11
  
  I think NETA is influenced by some specific testing companies. Also they govern NETA test. Who will agree with this?
  
  Last post by southbury September 5, 2020
- NETA III Test Feb 2020
  
  NETA Level 3 Exam 10
  
  I would say about 25% of the questions on the exam were on this forum.
  
  Last post by clipboardwarrior March 19, 2020
- Can this CT produce enough voltage to trip a relay?
  
  NETA Level 4 Exam 9
  
  I think yes. 100ft x .0025ohm/ft = 0.25ohm < .9ohm so its ok.
  
  Last post by zslater August 28, 2020
- Contact Resistance testing of BUS, difference between test currents 10A VS 100A
  
  Electrical Testing Talk 8
  
  Just wondering on some theory info about long bus runs on contact resistance testing prior to putting equipment into service. Testing it at 10A VS 100A, does...
  
  Last post by Kalbi_Rob August 16, 2020
- Omicron Test Equipment vs Others
  
  Electrical Testing Talk 8
  
  I've recently went and visited an Omicron facility in Houston. We went for the line impedance testing abilities, but while we were there I was able to ask...
  
  Last post by amlawren April 3, 2020
- Blown fuse protective devices
  
  NETA Level 2 Exam 8
  
  On which of the following pieces of equipment would you most likely NOT find a blown fuse protective device?
  
  Last post by SecondGen May 25, 2020
- Doble Testing a Bushing: C2 reading higher than nameplate
  
  Electrical Testing Talk 8
  
  Does anyone have an explanation for high C2 readings when Doble testing transformer bushings? The test was on a three winding transformer. All C2 values...
  
  Last post by amlawren April 2, 2020
More topics: Electrical Testing Talk | Relay Testing Talk | Safety & Arc-Flash | NETA Exam Prep | NICET Certification Talk
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Certification Forum
1. NETA Level 2 Exam
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2. NETA Level 3 Exam
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3. NETA Level 4 Exam
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4. NICET Electrical Power Testing
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General Discussion Forum
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What rating lightning arrestor would be suitable for a 13800/7900V system? Your Answer: 15kV Correct Answer: 10kV There are two different ratings for 13.8...

2. The number of cycles completed in one second is called the Your Answer: hertz marked incorrect Hertz — A unit of measure for frequency. Replacing the...

Hello, I am acceptance testing the RGH 65K CB at .2 settings for ground fault using a secondary current test set. The GF pickup should trip around 200A....

Why doesn't NETA specify tests for panelboard assemblies? We do a lot of acceptance testing and there's often language in the scope of work for panelboards...

I wrote my NETA 4 test today... and failed. Here are some tips. Don't waste your time reading the NETA study material that they give you. I went through it...

hello to all, I have 1 year testing experience and looking to further my advancement in the testing world. I want to learn how to primary inject breakers,...

I have found that the old site where I purchased relay testing cable, and various knick knacks for assisting with relay testing has gone away. I am curious if...

Is there a waiting period after it rains before conducting a fall of potential test?

2. The number of cycles completed in one second is called the Your Answer: hertz marked incorrect Hertz — A unit of measure for frequency. Replacing the...

I think NETA is influenced by some specific testing companies. Also they govern NETA test. Who will agree with this?

I would say about 25% of the questions on the exam were on this forum.

I think yes. 100ft x .0025ohm/ft = 0.25ohm < .9ohm so its ok.

Just wondering on some theory info about long bus runs on contact resistance testing prior to putting equipment into service. Testing it at 10A VS 100A, does...

I've recently went and visited an Omicron facility in Houston. We went for the line impedance testing abilities, but while we were there I was able to ask...

On which of the following pieces of equipment would you most likely NOT find a blown fuse protective device?

Does anyone have an explanation for high C2 readings when Doble testing transformer bushings? The test was on a three winding transformer. All C2 values...

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