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- How much is the alternator phase current?
  
  NETA Level 3 Exam (6 replies)
  
  I have been stuck on this question and just can't seem to figure out how to get the correct answer of 6.93. Would you be able to show the work needed for...
  
  Last post by J2019L 1 Day Ago
- Should I fail this transformer?
  
  Electrical Testing Talk (21 replies)
  
  I am PI testing a small dry type transformer and my reading was 157 gigohm after 10 min but PI is less than 1. Neta says investigate valuess less than 100...
  
  Last post by Kalbi_Rob 1 Day Ago
- Level III Questions, seen recently (from memory bear with me), help?
  
  NETA Level 3 Exam (36 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 richardsa 5 Days Ago
- XFMR test question - wye-delta TTR
  
  NETA Level 2 Exam (16 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 young_dad 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
- 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
- Surge Arresters: Selection, Application and Testing Overview
  
  A comprehensive guide to surge arrester selection, application, maintenance and testing. Continue Reading
  
  Posted By testguy November 9, 2018
- Ground Fault Protection Systems: Performance Testing Basics
  
  This guide provides a general overview of inspection and test procedures for simple residual and zero-sequence ground fault protection systems. Continue Reading
  
  Posted By testguy June 6, 2018
- 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
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- NETA Holding Q2 Scores Until Late September???!!!!!
  
  NETA Level 3 Exam (14 replies)
  
  Just took the exam, which only had a handful of questions from the practice exams (I still believe I passed), but there was no score at the end and the paper...
  
  Last post by Wanderer20001us October 10, 2018
- NETA Level III Study Group??
  
  NETA Level 3 Exam (14 replies)
  
  Would anyone like to participate in a online study group? I have tried passing this exam three times now and each time I am a little closer but still not...
  
  Last post by Ben_Talbert January 7, 2019
- NETA IV TEST
  
  NETA Level 4 Exam (14 replies)
  
  I took the NETA IV exam this Monday. There was maybe one or two questions from this entire site on the exam!!!
  
  Last post by bnhocking January 31, 2019
- Community Posting Competition - Enter to Win Cool Prizes!
  
  News and Announcements (8 replies)
  
  As part of our ongoing effort to make this community the best it can possibly be for our members, we are pleased to announce our first ever posting competition...
  
  Last post by Kalbi_Rob September 4, 2018
- 5,000A Magnum SB Ground Fault verification
  
  Electrical Testing Talk (8 replies)
  
  Does anyone have experience doing a Ground Fault verification through a neutral CT on a 5,000A Magnum SB main Breaker with a Digitrip 520 trip unit?
  
  Last post by MrBolt December 17, 2018
More topics: Electrical Testing Talk | Relay Testing Talk | Safety & Arc-Flash | NETA Exam Prep | NICET Certification Talk
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I have been stuck on this question and just can't seem to figure out how to get the correct answer of 6.93. Would you be able to show the work needed for...

I am PI testing a small dry type transformer and my reading was 157 gigohm after 10 min but PI is less than 1. Neta says investigate valuess less than 100...

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...

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...

Just took the exam, which only had a handful of questions from the practice exams (I still believe I passed), but there was no score at the end and the paper...

Would anyone like to participate in a online study group? I have tried passing this exam three times now and each time I am a little closer but still not...

I took the NETA IV exam this Monday. There was maybe one or two questions from this entire site on the exam!!!

As part of our ongoing effort to make this community the best it can possibly be for our members, we are pleased to announce our first ever posting competition...

Does anyone have experience doing a Ground Fault verification through a neutral CT on a 5,000A Magnum SB main Breaker with a Digitrip 520 trip unit?

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