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- What is the theoretical maximum symmetrical fault current?
  
  NETA Level 3 Exam (5 replies)
  
  What is the theoretical maximum symmetrical fault current that would be available at the secondary terminals of a 3-phase 12,470-480Y/277V, 1000kva, 6.25%...
  
  Last post by joelcallow 1 Day Ago
- Fluke 1735 PQM: Erroneous Current Readings in Power Log Software (Firmware Conflict)
  
  Electrical Testing Talk (0 replies)
  
  When downloading data from a Fluke 1735 PQM, be sure to use the latest version of Power Log Classic to avoid getting erroneous current readings when creating a...
  
  Last post by SecondGen 3 Days Ago
- NETA Level II Exam Prep
  
  NETA Level 2 Exam (2 replies)
  
  Since the test has been updated how much of the test has changed; IE: is there more focus on safety or actual testing? Taking the test in October and reviewing...
  
  Last post by EEBSMSPE96 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
- 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. Photo: TestGuy. A ground fault is a type of... 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
- 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
Browse more technical articles...
Popular on TestGuy
- Shorting transformer windings for PI, why is it done?
  
  Electrical Testing Talk (17 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 Samuel July 18, 2018
- What's wrong with this picture?
  
  Electrical Testing Talk (16 replies)
  
  Hint: "I need you to take an oil sample."
  
  Last post by Dnjob123 August 9, 2018
- Anyone Pass Since the Change?
  
  NETA Level 2 Exam (11 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 hy3533 July 3, 2018
- Questions from recent Level 2 exam (10/2017)
  
  NETA Level 2 Exam (10 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 hy3533 July 5, 2018
- XFMR test question - wye-delta TTR
  
  NETA Level 2 Exam (10 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 hy3533 July 3, 2018
More topics: Electrical Testing Talk | Relay Testing Talk | Safety & Arc-Flash | NETA Exam Prep | NICET Certification Talk
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What is the theoretical maximum symmetrical fault current that would be available at the secondary terminals of a 3-phase 12,470-480Y/277V, 1000kva, 6.25%...

When downloading data from a Fluke 1735 PQM, be sure to use the latest version of Power Log Classic to avoid getting erroneous current readings when creating a...

Since the test has been updated how much of the test has changed; IE: is there more focus on safety or actual testing? Taking the test in October and reviewing...

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...

Hint: "I need you to take an oil sample."

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...

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...

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...

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