Search TestGuy.net
Timeline
Primary Injection Test Pins
Those look like the pins that come in the copper set ETI precision has for there injection sets you should be able to purchase them separately
Posted by Joseph_Darragh on 04-30-2025Primary Injection Test Pins
Hello! I have been a part of different testing outfits in the southwest US over the last 15 years, and the shops have always had test pins for doing primary injection circuit breaker testing. I've joined a smaller company and need to purchase some, but I'm having a heck of a time finding them. Would any of you techs have a clue where I could find these? I...
Posted by CMARTINEZ1029 on 04-15-2025ABB SACE Tmax XT5H
Hello Everyone, I have an issue with another XT5 breaker. I want to ask if anyone have this alarm before?
Posted by user62 on 04-11-2025Zenith automatic transfer switch manuals
I have seen that style ATS a few times, but it’s a rarity. We were a service provider for GE Zenith Switchgear and ATS,’ so I have material on ATS models going back into the late 80’s, but that’s long before then. ABB purchased GE Zenith Controls and your best bet is likely contacting a guy named Quinn in ATS Support. He’s been there for awhile an...
Posted by Jason_Swenson on 03-29-2025Phase angle analysis course recommendations
There's a few avenues available but I found Chris Werstiuk gives the best basic explanation at a technician's level (i.e. basic algebra/trig) vs calculus based. You will have to pay for his courses and books but they are well worth it in my opinion. https://relaytraining.com/ To start understanding relays, a great youtube resource are videos from Bill Ander...
Posted by Kalbi_Rob on 03-27-2025Phase angle analysis course recommendations
Looking into taking some courses diving into the power triangle, power factor, and phase angle analysis. Teaching myself how to test relays and just want a better understanding of the basics for a lot of the protective functions. Looked online for some courses on phase angle analysis, but didnt see much out there. Any recommendations?????
Posted by tblanks1693 on 03-27-2025Zenith automatic transfer switch manuals
Hey everyone, has anyone seen an ATS like this? And can you help find a manual? I can’t find one
Posted by eric_bunnell on 03-23-2025We Value Your Feedback - Help Us Improve
Practice question "Which SCADA communication is only appropriate for short distances?" should have RS232 as the correct answer; however, this was marked incorrect with "CAT6" as the correct response. RS232 is a serial, point-to-point communication method only intended for distances up to approx. 50ft whereas CAT6 is typically used with Ethernet communicatio...
Posted by user987 on 03-15-2025Insulation Resistance Testing Open Circuit Breakers
Hey everyone, when doing insulation testing on circuit breakers. When I test the breaker open, I typically just go from line to load. And I am not grounded out the other poles In this book, Paul, Gill‘s electrical power, equipment, maintenance, and testing it is saying for circuit breakers open connect high voltage lead to pull one. Ground all other po...
Posted by eric_bunnell on 03-13-2025Report Tech Quiz Issues Here
[Transformers] **1. A wye-delta transformer has a primary line voltage of 7200 V and a secondary voltage of 360 V. What is the turns ratio?** *Your Answer: 20:1* Correct Answer: 11.55:1 Help: [What is the turns ratio?]
Posted by user988 on 03-07-2025RTS Meter Test for SEL-851
I don't have the SEL-851 in my .mdr database, but based on the issue you're having, I'm pretty sure it has to do with the window position numbers in the METER.TXT read. I haven't figured out yet how to identify the correct number for the position I want except by trial-and-error. If you want to fix it so that you don't have to run manual every time for thi...
Posted by user987 on 03-07-2025FT Switches - Voltage on blade or not?
To me, it's about the purpose of the test switch... in my experience, they're mainly used for isolating the relay(s) from the system. If you're planning to test the relay(s) after this isolation, and you would like to use test paddle(s), the tops (stationary terminals) are the only things connected. Makes things way easier to test.
Posted by user987 on 03-07-2025- Post New Topic or Reply
Featured Articles
🔌 Join our vibrant knowledge sharing hub for electrical test technicians and maintenance professionals worldwide! At TestGuy, we're dedicated to empowering individuals in the field, providing valuable resources, and fostering discussions to elevate the standards of electrical testing practices. Join us and expand your expertise!
Upcoming Webinars
-
Voltage Indicators vs. Absence of Voltage Testers
2025-05-06 14:00:00 -
Challenges and Recommendation for Performing Partial Discharge Measurements on Hydrogenerators
2025-05-06 14:00:00 -
Voltage Indicators vs. Absence of Voltage Testers
2025-05-06 17:00:00 - Full Agenda
Popular Topics
- 6 Electrical Tests for Current Transformers Explained
- Inverse Time Overcurrent Relays and Curves Explained
- Transformer Tap Changers: Basic Principles and Testing Explained
- Transformer Winding Resistance: Test Methods and Procedures Explained
- Motor Nameplate and Ratings Explained
- Test Equipment 101: The Basics of Electrical Testing
- Current Transformer Basics: Understanding Ratio, Polarity, and Class
- All Popular Topics