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- Broken Arc Resistance Tester
  
  Electrical Testing Talk (0 replies)
  
  My company has recently purchased an old (broken) arc resistance tester. It is a Beckman ART-1. The piece was shipped to us without an equipment manual. I have...
  
  Last post by nstth9 4 Days Ago
- Practice Test Question: Negative Sequence
  
  NETA Level 3 Exam (3 replies)
  
  The question reads: "What can you do to create a negative sequence when testing a 47 relay?" The choices were apply 3x pick-up on a single phase, apply...
  
  Last post by EricGoetz92 5 Days Ago
- Practice Test Question: MC Cable Bend Radius
  
  NETA Level 3 Exam (2 replies)
  
  The practice question reads: "Type MC Cable has a bending radius of ____ times the external diameter of the metallic sheathing." I put 7 times the...
  
  Last post by EricGoetz92 6 Days Ago
- Practice Test Question: Zone Interlocked Scheme
  
  NETA Level 3 Exam (3 replies)
  
  The question reads: "In a zone-interlocked low voltage circuit breaker protection scheme, the trip unit responsible for clearing the fault is inoperative....
  
  Last post by storm89 6 Days Ago
- Practice Test Question: Interfacial Tension
  
  NETA Level 3 Exam (3 replies)
  
  So a practice question reads: "What would a decreasing value of interfacial tension indicate?" My answer was contaminants and in the the Paul Gill book...
  
  Last post by storm89 6 Days Ago
- Practice Test Question: Which relay is used to protect feeders?
  
  NETA Level 2 Exam (2 replies)
  
  So the question reads: "Which relay is used to protect feeders?" and the possible answers are: - MHO relay - Translay Relay - Merz Price Relay -...
  
  Last post by EricGoetz92 1 Week Ago
- Insulation resistance test set question
  
  NETA Level 4 Exam (2 replies)
  
  This is the correct answer. The following answer to this question is being marked as "incorrect". Basic Test Equipment You examine a test instrument...
  
  Last post by rofo42 1 Week Ago
More topics: Electrical Testing Talk | Safety & Arc-Flash | NETA Exam Prep
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Technical Articles
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  This guide provides a general overview of inspection and test procedures for simple residual and zero-sequence ground fault protection systems. Photo: TestGuy. A ground fault is a type of... Continue Reading
  
  Posted By testguy 1 Week Ago
- Power Cable Testing and Diagnostics Overview
  
  This article provides an overview of some commonly used maintenance and diagnostic techniques that are commercially available for performing tests in the field on medium- and high-voltage power... Continue Reading
  
  Posted By testguy May 2, 2018
- Zone Selective Interlocking (ZSI) Basic Principles
  
  This guide provides a basic overview of zone selective interlocking principles and test procedures. Continue Reading
  
  Posted By testguy April 6, 2018
- Transformer Winding Resistance Testing Explained
  
  An introduction to transformer winding resistance test methods and procedures. Continue Reading
  
  Posted By testguy March 18, 2018
- Electrical Shock and Arc Flash PPE Overview
  
  This guide provides an overview of PPE that may be required for safe electrical work, including insulated gloves, arc flash clothing, insulated tools and other electrical protective equipment. Continue Reading
  
  Posted By testguy December 10, 2017
- 10 Electrical Distribution System Arrangements Explained
  
  The selection of a distribution arrangement has a profound impact upon the reliability and maintainability of the electrical system. Continue Reading
  
  Posted By testguy September 22, 2017
- Transformer Diagnostics and Condition Assessment
  
  Determining the existing condition of power transformers is an essential step in analyzing the risk of failure. Continue Reading
  
  Posted By testguy June 23, 2017
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Popular on TestGuy
- Level III Questions, seen recently (from memory bear with me), help?
  
  NETA Level 3 Exam (29 replies)
  
  I've got a few questions I saw on the exam recently: 1: Which oil test is not required on silicone transformer oil? 2: What is the best way to test a...
  
  Last post by Wanderer20001us April 19, 2018
- Shorting transformer windings for PI, why is it done?
  
  Electrical Testing Talk (13 replies)
  
  Had an interesting discussion on the job today about shorting together transformer windings when doing a PI test. Every technical manual I've come across tells...
  
  Last post by wooddy January 16, 2018
- Anyone Pass Since the Change?
  
  NETA Level 2 Exam (10 replies)
  
  Has anyone passed the level 2 since they changed it? If so, could you give some pointers as to what kind of material it covers/what to study? I'm taking it...
  
  Last post by rofo42 3 Weeks Ago
- XFMR test question - wye-delta TTR
  
  NETA Level 2 Exam (9 replies)
  
  A wye-delta transformer has a primary line voltage of 7200 V and a secondary line voltage of 480 V. What is the turns ratio? Your Answer: 15:1 Not sure...
  
  Last post by Wanderer20001us April 20, 2018
- Questions from recent Level 2 exam (10/2017)
  
  NETA Level 2 Exam (9 replies)
  
  Here are some recent questions from the Level 2, they were given to me by a co-worker who took the exam in October. 1. What connections are on a DLRO...
  
  Last post by SecondGen April 19, 2018
More topics: Electrical Testing Talk | Safety & Arc-Flash | NETA Exam Prep
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My company has recently purchased an old (broken) arc resistance tester. It is a Beckman ART-1. The piece was shipped to us without an equipment manual. I have...

The question reads: "What can you do to create a negative sequence when testing a 47 relay?" The choices were apply 3x pick-up on a single phase, apply...

The practice question reads: "Type MC Cable has a bending radius of ____ times the external diameter of the metallic sheathing." I put 7 times the...

The question reads: "In a zone-interlocked low voltage circuit breaker protection scheme, the trip unit responsible for clearing the fault is inoperative....

So a practice question reads: "What would a decreasing value of interfacial tension indicate?" My answer was contaminants and in the the Paul Gill book...

So the question reads: "Which relay is used to protect feeders?" and the possible answers are: - MHO relay - Translay Relay - Merz Price Relay -...

This is the correct answer. The following answer to this question is being marked as "incorrect". Basic Test Equipment You examine a test instrument...

I've got a few questions I saw on the exam recently: 1: Which oil test is not required on silicone transformer oil? 2: What is the best way to test a...

Had an interesting discussion on the job today about shorting together transformer windings when doing a PI test. Every technical manual I've come across tells...

Has anyone passed the level 2 since they changed it? If so, could you give some pointers as to what kind of material it covers/what to study? I'm taking it...

A wye-delta transformer has a primary line voltage of 7200 V and a secondary line voltage of 480 V. What is the turns ratio? Your Answer: 15:1 Not sure...

Here are some recent questions from the Level 2, they were given to me by a co-worker who took the exam in October. 1. What connections are on a DLRO...

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