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- NETA 2 test question
  
  NETA Level 2 Exam 3
  
  Which device would you most likely find used as a main switch on a 4000A low voltage switchgear installation? The correct answer is BPS. What BPS stands for?...
  
  Last post by rofo42 2 Hours Ago
- A given CT is rated 600:5, C20, 0.3 B 0.9. Can this CT produce enough voltage to mete
  
  NETA Level 4 Exam 5
  
  I think yes. 100ft x .0025ohm/ft = 0.25ohm < .9ohm so its ok.
  
  Last post by mmacdonell 13 Hours Ago
- TestGuy App testing now open to Pro Subscribers!
  
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  Interested in giving our new Android app a try? We are opening up a limited number of spots in our internal testing program to TestGuy Pro members! All you...
  
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- what happens after the 51 element trips?
  
  P&C / Relay Testing Talk 5
  
  Given a circuit breaker schematic what happens after the 51 element trips? A) Trip coil energizes and opens the breaker B) 86-1 contacts close C) 86-1...
  
  Last post by akumaleon 1 Day Ago
- Safety Glasses
  
  Safety and Arc Flash Talk 2
  
  How do you guys keep your safety glasses from getting scratched up no mater what i do they always seem to get scratched in a few weeks? Special case?...
  
  Last post by GreenHornet 1 Day Ago
- Building fundamental knowledge of Relay Protection
  
  P&C / Relay Testing Talk 12
  
  Hey all, So I've been placed in the Relay team at work and have been at it for nearly 2 months. The most notable work experience so far has been terminating...
  
  Last post by GreenHornet 1 Day Ago
- Circuit Breaker Simulator
  
  P&C / Relay Testing Talk 8
  
  Does any have or use a CB simulator during functional relay testing? Haven't had much luck looking else wear online. If you do, can you provide any details you...
  
  Last post by GreenHornet 1 Day Ago
- Always check the arc flash rating sticker
  
  Safety and Arc Flash Talk 4
  
  Always check the arc flash rating sticker located on the equipment to determine proper PPE needed to open, inspect, or work on equipment. If there isn't an arc...
  
  Last post by romeroduke 2 Days Ago
More topics: Electrical Testing Talk | Relay Testing Talk | Safety & Arc-Flash | NETA Exam Prep | NICET Certification Talk
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- 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
- 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
  
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- Study Group on Discord?
  
  NETA Level 3 Exam 19
  
  I have been given access to start a study group on Discord for test prep. I am thinking once or twice a week we meet and discuss topics and learn together as...
  
  Last post by SecondGen June 7, 2019
- What’s the best way to operate power dB
  
  Electrical Testing Talk 14
  
  What do you guys use for computers and the best way to set up power dB without failing? Operating this system is awesome...when it works. Either having...
  
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- Transformer power factor under vacuum
  
  Electrical Testing Talk 13
  
  What effect, if any, does negative tank pressure have on transformer power factor? I've never known of it being an issue but another tech on site seems to...
  
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- Building fundamental knowledge of Relay Protection
  
  P&C / Relay Testing Talk 12
  
  Hey all, So I've been placed in the Relay team at work and have been at it for nearly 2 months. The most notable work experience so far has been terminating...
  
  Last post by GreenHornet 1 Day Ago
- NETA III Test April 2019
  
  NETA Level 3 Exam 11
  
  This exam was harder than the previous one. It asked more practical field questions than straight and direct questions. Multiply: magnitude 15 at 30 degrees...
  
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- How do you Defeat Ground Fault with Primary Injection on Eaton 310+? Trip Unit
  
  Electrical Testing Talk 10
  
  Does anyone know how to defeat ground fault on these trip units during primary injection? I know you can series the contacts but that is a pain. Im wondering...
  
  Last post by Kimbo Slice October 27, 2019
- Exam permitted materials
  
  NETA Level 2 Exam 9
  
  What, if any, reference material is allowed when sitting a NETA test exam. Can you bring ATS/MTS, NFPA 70/E, etc? I know there is a Calculator on screen and...
  
  Last post by Kalbi_Rob November 25, 2019
- Determine total reactive resistance of this circuit
  
  NETA Level 3 Exam 9
  
  This question appeared on the NETA III exam. Find the total reactance in this circuit. I distinctly remember it because it was the very first question to...
  
  Last post by Kalbi_Rob August 17, 2019
More topics: Electrical Testing Talk | Relay Testing Talk | Safety & Arc-Flash | NETA Exam Prep | NICET Certification Talk
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Which device would you most likely find used as a main switch on a 4000A low voltage switchgear installation? The correct answer is BPS. What BPS stands for?...

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

Interested in giving our new Android app a try? We are opening up a limited number of spots in our internal testing program to TestGuy Pro members! All you...

Given a circuit breaker schematic what happens after the 51 element trips? A) Trip coil energizes and opens the breaker B) 86-1 contacts close C) 86-1...

How do you guys keep your safety glasses from getting scratched up no mater what i do they always seem to get scratched in a few weeks? Special case?...

Hey all, So I've been placed in the Relay team at work and have been at it for nearly 2 months. The most notable work experience so far has been terminating...

Does any have or use a CB simulator during functional relay testing? Haven't had much luck looking else wear online. If you do, can you provide any details you...

Always check the arc flash rating sticker located on the equipment to determine proper PPE needed to open, inspect, or work on equipment. If there isn't an arc...

I have been given access to start a study group on Discord for test prep. I am thinking once or twice a week we meet and discuss topics and learn together as...

What do you guys use for computers and the best way to set up power dB without failing? Operating this system is awesome...when it works. Either having...

What effect, if any, does negative tank pressure have on transformer power factor? I've never known of it being an issue but another tech on site seems to...

Hey all, So I've been placed in the Relay team at work and have been at it for nearly 2 months. The most notable work experience so far has been terminating...

This exam was harder than the previous one. It asked more practical field questions than straight and direct questions. Multiply: magnitude 15 at 30 degrees...

Does anyone know how to defeat ground fault on these trip units during primary injection? I know you can series the contacts but that is a pain. Im wondering...

What, if any, reference material is allowed when sitting a NETA test exam. Can you bring ATS/MTS, NFPA 70/E, etc? I know there is a Calculator on screen and...

This question appeared on the NETA III exam. Find the total reactance in this circuit. I distinctly remember it because it was the very first question to...

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