Testing Tech Tips
Testing Tech Tips
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NEW Doble F8000 / F8300 - Review from the Field
Is it time to upgrade to the new Doble F8000 or F8300 from your old F6150? What are the key differences and updates? Is this relay test set ready take out into the field? I present an unbiased, honest review of this exciting new powerhouse and share some of my issues and reservations about it, from the context of an experience relay tech.
0:00 - Intro
2:33 - Key Features
8:15 - Connecting to the Unit (RANT)
12:48 - Fix USB Driver
16:50 - Enabling the Ethernet Ports
18:04 - Conclusions from the Field
มุมมอง: 708

วีดีโอ

Basler BE1-50/51 - How to Test Relays ep8
มุมมอง 740หลายเดือนก่อน
The Basler BE1-50/51 is a great solid state instant & time overcurrent relay from the 90's. Today we take a deep-dive on this cool relay and I show you how to test all of the functions, including the pickups, time overcurrent trip, instantaneous trip, and targets. 0:00 - Intro 3:14 - Inspect the Relay & Case 8:56 - RTFM & DIP Switch Settings 17:20 - Create a Test Plan 20:42 - Time OC Pickup 24:...
How to Test an Energy Revenue Meter with a Watthour Standard [SEL-735 + Radian RD-21]
มุมมอง 4262 หลายเดือนก่อน
In this video I give a detailed overview of the theory and methodology of testing a high accuracy #energy revenue #meter like the SEL-735 offline using a watt-hour standard like the Radian RD-21. Chat with me on LinkedIn! linkedin.com/in/holland-joel/ 0:00 - Intro 1:20 - Defining Meter Accuracy 5:36 - NETA Testing Spec 7:04 - Watt-hour standard 9:14 - Testing Voltage or Current 11:40 - Power Eq...
Q&A#2 Cheat Code for Testing Bus Duct
มุมมอง 6354 หลายเดือนก่อน
A viewer asked how they're supposed to test bus duct that's longer than their DLRO leads. There's actually a simple trick to use the other phases of the bus duct AS PART OF THE TEST SET. If you've got an idea for a video or a question you're too afraid to ask anyone else, let me know! It might be the topic of my next video.
GE IAC Masterclass Part 2: TESTING - How To Test Relays ep6
มุมมอง 6165 หลายเดือนก่อน
This is part 2 where we talk about testing the GE IAC! The GE IAC relay was one of the most popular electromechanical relays on the planet. It is very similar to the Westinghouse CO series of relays (CO8, CO9, CO10, CO11, etc) and is the predecessor to the GE IFC relay. In fact, most of the testing procedures are identical between all three of these. There are still tens of thousands of electro...
GE IAC Relay Masterclass Part 1 - How To Test Relays ep5
มุมมอง 1.3K5 หลายเดือนก่อน
The GE IAC relay was one of the most popular electromechanical relays on the planet. It is very similar to the Westinghouse CO series of relays (CO8, CO9, CO10, CO11, etc) and is the predecessor to the GE IFC relay. In fact, most of the testing procedures are identical between all three of these. There are still tens of thousands of electromechanical overcurrent relays still in service all over...
Learn Protection Suite in 45 Minutes - How To Test Relays ep4
มุมมอง 1.5K6 หลายเดือนก่อน
Learning the software is often the hardest part of relay testing. Today I fly through the major functions you need to know in Protection Suite! This video was a long time in the making, but I'm excited to be able to bring it out for everyone. You obviously wont be a master overnight, but this is the first step in a long series of videos designed to get new guys in the field up to speed on relay...
Q&A#1 - Why do you short transformer windings for Power Factor but not Insulation Resistance testing
มุมมอง 1.9K7 หลายเดือนก่อน
A viewer asked, "Why do we need to short the windings for the Power Factor test, but we don't for Megger (Insulation resistance)?" When testing large power transformers or distribution transformers for acceptance and maintenance, there's a lot of things we do which don't make sense on the surface. I try to break that down in understandable terms, with just enough math to make it sound legit! Th...
Download Settings in a GE Multilin Relay - How to Test Relays ep3
มุมมอง 2.5K8 หลายเดือนก่อน
Today we fire up the GE Multilin 469 to take a look at downloading and uploading settings! I talk about the similarities and differences in the software user interface between these and the other GE Multilin relays like the UR series (B60, T60, T90, F35, etc), the 8-series (850, 869, 889, etc). I also give a brief overview of the settings menus and how to handle the settings files. Link to my f...
Purpose, Types, & Applications of Protection Relays - How to Test Relays ep2
มุมมอง 1.7K9 หลายเดือนก่อน
Gentlemen welcome back! Today we're taking a look at the major types, vintages, and applications of protection relays, as well as the basic building blocks of circuit protection as power systems have evolved over the last 100 years. Useful Links: My video on low voltage circuit breaker testing (Thermal Curve Explanation) th-cam.com/video/3o6jNp7KVkM/w-d-xo.html Another very good video about the...
How to Download/Install Settings on SEL Relays - How to Test Relays ep1
มุมมอง 6K9 หลายเดือนก่อน
Here's a step-by-step guide on downloading settings files from (or installing them into) SEL relays! I also show how fix USB driver issues, download event files, and view the sequential event recorder (SER). As mentioned, here are the links to everything I talk about in the video. SEL AcSELerator QuickSet software (you need an account to download): selinc.com/products/5030/ SEL C662 Cable: seli...
How to Test Relays ep0: Series Intro
มุมมอง 1.2K10 หลายเดือนก่อน
Here's a quick rundown for what to expect as I start the "How to Test Relays" Series!
MASTER Load Studies with the AEMC PEL103
มุมมอง 97610 หลายเดือนก่อน
Here's a step-by-step guide for how to nail your NEC 220.87 30-Day load studies on the first try every time! I have the AEMC PEL103 to play with in the shop, but this works the same for the PEL102 and PEL105 as well. 0:00 - Intro 2:36 - PEL Accessories and Sensors 7:41 - Connecting the Software 12:15 - Initial Config 14:42 - Measurement Setup 20:57 - Live Measurement Checks 23:54 - Downloading ...
What is Maintenance Mode? (MMS, ERMS, ARMS, RELT, DAS)
มุมมอง 3.2K11 หลายเดือนก่อน
EDIT: I made a mistake in the script. There is nothing inherently different between "commercial" and "industrial" according to NEC so 240.87 technically would apply to industrial facilities with equipment over 1200A. In speaking generally, a facility with a medium voltage service will (typically) have a relay and fast enough breaker or some other means to limit the arcing current, meaning maint...
NETA vs NICET EPT - Which one's better? (Plus exam study tips!)
มุมมอง 1.8Kปีที่แล้ว
NETA vs NICET EPT - Which one's better? (Plus exam study tips!)
40 Phrases and Slang you NEED TO KNOW as an Electrical Technician
มุมมอง 1.6Kปีที่แล้ว
40 Phrases and Slang you NEED TO KNOW as an Electrical Technician
Write Professional IR Scan Reports with FREE Flir Thermal Studio
มุมมอง 1.6Kปีที่แล้ว
Write Professional IR Scan Reports with FREE Flir Thermal Studio
How to Test Breakers ep2: Medium Voltage Vacuum Circuit Breaker
มุมมอง 8Kปีที่แล้ว
How to Test Breakers ep2: Medium Voltage Vacuum Circuit Breaker
How to Program Siemens ETU500 & ETU800 Trip Units with Sentron Powerconfig
มุมมอง 2.9Kปีที่แล้ว
How to Program Siemens ETU500 & ETU800 Trip Units with Sentron Powerconfig
ABB vs States Test Switch Paddles - Flexitest FT1 vs FMS
มุมมอง 3Kปีที่แล้ว
ABB vs States Test Switch Paddles - Flexitest FT1 vs FMS
Test Equipment Repair - 1 MASSIVE FAIL, 1 success!
มุมมอง 383ปีที่แล้ว
Test Equipment Repair - 1 MASSIVE FAIL, 1 success!
How to Test Breakers ep1: Thermal Magnetic Trip Units
มุมมอง 7Kปีที่แล้ว
How to Test Breakers ep1: Thermal Magnetic Trip Units
Inexcusable Problem with NEW ABB Breakers
มุมมอง 859ปีที่แล้ว
Inexcusable Problem with NEW ABB Breakers

ความคิดเห็น

  • @thatchedstudios4768
    @thatchedstudios4768 6 ชั่วโมงที่ผ่านมา

    Thank you for putting your life on the line for our convenience and comfort. Stay safe out there, brother.

    • @testingtechtips
      @testingtechtips 5 ชั่วโมงที่ผ่านมา

      It doesn't feel dangerous when we're doing it! We take a lot of time and effort to make sure we're equipped to do everything comfortably and safely - and to make sure we don't cause more switches to blow up haha.

  • @Papapickles69
    @Papapickles69 6 ชั่วโมงที่ผ่านมา

    Wow I really appreciate the upload, really cool stuff.

  • @top.j4
    @top.j4 13 วันที่ผ่านมา

    Thank you 🙏

  • @jordans.9702
    @jordans.9702 15 วันที่ผ่านมา

    We got about 20 6150’s. Few 61850 subs. No one really knows or gives a fuck about that thing. They just sit there. 6150 is where it’s at.

    • @testingtechtips
      @testingtechtips 15 วันที่ผ่านมา

      Why mess with it if it works, right?

  • @WhatsupwithMike
    @WhatsupwithMike 25 วันที่ผ่านมา

    I was wondering how these units were in the field. I started on a F6150 with Protest and used one for 12 years exclusively. This past year I got a CMC and why it isn't perfect, I'm really enjoying the experience. I am finding Test Universe much easier to work with than Protection Suite. Thanks for taking the time to make this video!

    • @testingtechtips
      @testingtechtips 15 วันที่ผ่านมา

      I found the Omicron software a bit limiting for what I wanted but I never actually got training on it so I'm sure I was missing something haha.

  • @50Hz
    @50Hz 26 วันที่ผ่านมา

    Ever played with Omicron?

    • @testingtechtips
      @testingtechtips 26 วันที่ผ่านมา

      I have a few hours with it under my belt but not a ton. I've always used an F6150 and protections suite, and never had a compelling reason to use anything else. I know it's solid hardware and all the guys I know who use the CMC have a similar love/hate relationship with the software. Maybe I'll play with it more at some point and report back.

    • @50Hz
      @50Hz 26 วันที่ผ่านมา

      @@testingtechtips I find the omicron does so much for you it turns you into a push button tester.

  • @justinmarini9431
    @justinmarini9431 29 วันที่ผ่านมา

    You forgot to mention, is there an embarrassing number of beeps when you open-circuit the current output?

    • @testingtechtips
      @testingtechtips 28 วันที่ผ่านมา

      Oh my god yes! It's terrible. Though I think I forgot to mention that was my favorite benefit over the 6150 was that you can program how loud the beeper is.

  • @jakevolk9837
    @jakevolk9837 29 วันที่ผ่านมา

    Your rant has me rolling 😂😂😂

  • @jakevolk9837
    @jakevolk9837 29 วันที่ผ่านมา

    @electricianu Dustin! Go high voltage with Joel! You gotta check this guy out. get with Joel holland for a collab !!! Please!!!!

  • @JAC_Hammer
    @JAC_Hammer หลายเดือนก่อน

    We've had a couple presentations from Doble trying to push the F8. Our consensus as a group was, it has some cool gimmicky colored light rings and is worse in basically every other way. We use our F6150's on IEC61850 with GOOSE (No SV yet) and they work fine. We were missing the hands on demo of an F8 but I'm glad after seeing your first experience that we made the right decision to not pursue the F8.

    • @testingtechtips
      @testingtechtips หลายเดือนก่อน

      Agreed. The 6150 is such a good test set, I'm not sure what the push was to abandon it for F8.

  • @PhilsJunkDrawer
    @PhilsJunkDrawer หลายเดือนก่อน

    Seems like they focused too much towards bench testing/manufacturer testing. When we’re working in the field, we don’t want to deck around with changing modules or troubleshooting our test equipment. Just give me a product that works the way it is. I’m supposed to be testing and troubleshooting relays, not test sets.

  • @oltonkitz
    @oltonkitz หลายเดือนก่อน

    Shermco?

    • @testingtechtips
      @testingtechtips หลายเดือนก่อน

      Yup. It's going well so far, compared to my last few gigs!

    • @oltonkitz
      @oltonkitz หลายเดือนก่อน

      @@testingtechtipsthat’s where I work too, great company.

    • @oltonkitz
      @oltonkitz หลายเดือนก่อน

      Good to hear, I love working for Shermco. Well rounded teams all around. Glad to have you aboard.

  • @essakhan-oh2vh
    @essakhan-oh2vh หลายเดือนก่อน

    Zeus the god or son of god .

  • @jayschumacher815
    @jayschumacher815 หลายเดือนก่อน

    good stuff, thanks for taking the time.

    • @testingtechtips
      @testingtechtips หลายเดือนก่อน

      Thanks! Glad you found it helpful.

  • @Kevinproblem
    @Kevinproblem หลายเดือนก่อน

    Hey, Joel. Do have any videos with the Multilingual 889 series?

    • @testingtechtips
      @testingtechtips หลายเดือนก่อน

      Sorry, nothing on the 889 yet. I make about one video a month so it'll take a while to work my way down the list.

  • @EDubsUphoric
    @EDubsUphoric หลายเดือนก่อน

    I really hope "Whats for lunch?" is mentioned somewhere in the middle of the video.

  • @johnathonweber1653
    @johnathonweber1653 หลายเดือนก่อน

    A manta 5100 makes me the tech I think I am 😩

  • @jeanlawson9133
    @jeanlawson9133 หลายเดือนก่อน

    Awesome video,Sir. Thank you.

    • @testingtechtips
      @testingtechtips หลายเดือนก่อน

      Of course! Thanks for the support.

  • @burnedupsparkytipsandrevie9597
    @burnedupsparkytipsandrevie9597 หลายเดือนก่อน

    I swear i learn more from you than i ever did from ShermcoU back when i worked for them. Not officially a Neta 2 but gonna test for it soon with the new company im at. But great video man

    • @testingtechtips
      @testingtechtips หลายเดือนก่อน

      My biggest complaint with most "training" classes has always been that they're too vague, and you can't take what you learned and immediately use it in the field. One thing I focus on is lasering in on one topic with real examples, start to finish just like I'd train guys in the field. Thanks and good luck on your test!

  • @Jay7Rocka
    @Jay7Rocka หลายเดือนก่อน

    Good video! I will say Powermetrix makes a phatom load test set that makes meter testing even easier

    • @testingtechtips
      @testingtechtips หลายเดือนก่อน

      I've seen the Powermetrix units used for in-service checks. I'm assuming they work almost exactly the same way.

    • @Jay7Rocka
      @Jay7Rocka หลายเดือนก่อน

      @testingtechtips They can do both in service and they have a waveform generator. They spit out a nice looking report as well. The software runs windows xp and is kind of janky but after it's all set up it's really convenient. Powermetrix Powermaster 7 series

    • @testingtechtips
      @testingtechtips หลายเดือนก่อน

      I'll check it out! Thanks!

  • @dylanbrown3869
    @dylanbrown3869 หลายเดือนก่อน

    I hate how everything has a warning label now

    • @testingtechtips
      @testingtechtips หลายเดือนก่อน

      Are you talking about the disclaimer at the beginning of my videos?

  • @ryndroma
    @ryndroma 2 หลายเดือนก่อน

    You're doing an amazing service to the NETA community, keep up the excellent work. I recommend your channel to everyone I can.

    • @testingtechtips
      @testingtechtips 2 หลายเดือนก่อน

      Hey thanks! I appreciate the support!

  • @theddavis
    @theddavis 2 หลายเดือนก่อน

    Thank you for putting the work in to do these videos. Learning alot and proven things I think I know.

    • @testingtechtips
      @testingtechtips 2 หลายเดือนก่อน

      Happy to help, and thanks for the support!

  • @FinanceFacts2024
    @FinanceFacts2024 2 หลายเดือนก่อน

    Thank You

  • @tjevans9893
    @tjevans9893 2 หลายเดือนก่อน

    Thanks a lot. As someone who is weak in math, what type of formulas do I need to know? Or is there much math on the neta level 2 test?

    • @testingtechtips
      @testingtechtips 2 หลายเดือนก่อน

      There is definitely some math. If you have the fundamentals of algebra down and can solve power equations (ohms law), parallel/series resistors and capacitors, then you should have enough to pass the exam.

  • @hamsanvich
    @hamsanvich 2 หลายเดือนก่อน

    Thank you for this video! I have been a testing tech for around 6 months and before that I was an electrician for about 6 years. I have an associate's degree so hopefully my company will let me take the NETA 2 around my 1-year mark. I am glad that there is a channel out here that gets in depth with a niche field like this one.

    • @testingtechtips
      @testingtechtips 2 หลายเดือนก่อน

      Thanks, happy to help and good luck!

  • @Nii_Nashville
    @Nii_Nashville 2 หลายเดือนก่อน

    That's a great video. I really appreciate all the explanations. I am new to SEL products. Do you have a video about setting relay parameters such as CT ratio? Thank you

    • @testingtechtips
      @testingtechtips 2 หลายเดือนก่อน

      My videos are more tailored to the technicians doing the work in the field. Generating settings is definitely more of an engineering activity, but I'll have some videos covering a little of that scope as it relates to testing relays coming soon!

  • @samdavis9550
    @samdavis9550 2 หลายเดือนก่อน

    Thank you for sharing your experiences in Relaying testing. This is really important and helpful to a lot of relay tech . Great job. Now if you upload a video of ENOSERV RTS 7.1 much needed. See you soon. Keep up the good work.

    • @testingtechtips
      @testingtechtips 2 หลายเดือนก่อน

      I probably wont be making any RTS videos, for a few reasons. #1 I'm a protections suite guy. #2 the whole point of RTS is that it does all of the work for you and you're just a pushing buttons. In my relay testing series, I'll do my best to explain the concepts and help you understand the math behind what we're doing when we test relays. Hopefully that'll make the steps RTS runs make more sense. If you need immediate help with RTS they have some very good paid training classes.

  • @davidwhelan8550
    @davidwhelan8550 2 หลายเดือนก่อน

    For a guy that claims "I am not an engineer", you ably prove that you don't have to be to be engaged in your craft. great job.

    • @testingtechtips
      @testingtechtips 2 หลายเดือนก่อน

      Haha thanks, I mostly use it as a caveat in case I get the facts wrong. (The comment section is always smarter than I am!)

  • @carlaaccioly885
    @carlaaccioly885 2 หลายเดือนก่อน

    Hi in our substation , we have this switch in the incomers and tie and also in the mcc outgoings. But not in the triristor and feeders outgoings. Could you help me understand why some outgoings has this switch and other not?

    • @testingtechtips
      @testingtechtips 2 หลายเดือนก่อน

      Man I'm sorry but I don't have anywhere near enough detail on your specific application to help you with that one.

  • @mahamhaider3301
    @mahamhaider3301 3 หลายเดือนก่อน

    thank you!

    • @testingtechtips
      @testingtechtips 3 หลายเดือนก่อน

      You're welcome! Thanks for watching

  • @sudeshs
    @sudeshs 3 หลายเดือนก่อน

    Hello, is it safe to retrieve the settings file from an active relay of a running motor?

    • @testingtechtips
      @testingtechtips 3 หลายเดือนก่อน

      For most modern relays, if you are only downloading the settings from the relay to your computer, it should be fine. I would suggest against it if the motor powers something critical, but for most cases yes. You would want to take the relay out of service to install new settings as they may occasionally trigger outputs when new settings are loaded in. That said, you're doing it at your own risk so get a thumbs up from whoever runs the site.

  • @obrigadoamigo
    @obrigadoamigo 3 หลายเดือนก่อน

    I don't comment on many videos but yours are fantastic and always cover all of my questions. Thank you!

    • @testingtechtips
      @testingtechtips 3 หลายเดือนก่อน

      I appreciate that and I'm glad to help!

  • @stefanhermannsson3765
    @stefanhermannsson3765 4 หลายเดือนก่อน

    For s Siemens system, do we need to disconnect the load side conductors of the breaker for arc flash reduction switch testing?

    • @testingtechtips
      @testingtechtips 4 หลายเดือนก่อน

      It depends how you're testing it and if you've properly isolated the system upstream.

  • @laroyrichardson
    @laroyrichardson 4 หลายเดือนก่อน

    Great Channel. Relay Tech for the power company in my area. Respect from Washington D.C. 🤝👍

    • @testingtechtips
      @testingtechtips 4 หลายเดือนก่อน

      Awesome! Glad to have the support

  • @indiansupporter3822
    @indiansupporter3822 4 หลายเดือนก่อน

    No that is not correct Arcing current is not 40 percent of bolted fault current, Arcing current percentage variation depend upon the k factor which is computed by taking into account the electrode configuration and other factors reference ieee 1584 2018

    • @testingtechtips
      @testingtechtips 4 หลายเดือนก่อน

      I have to go off the few sources I've read including NFPA 70E D.3.1 which calls out the "industry accepted minimum" arcing current as 38% of bolted fault current. I preface that oversimplification by stating I'm not an engineer because it's absolutely not my area of expertise and is clearly not a key takeaway from this video.

  • @juliussalacup668
    @juliussalacup668 4 หลายเดือนก่อน

    where to but the test equipment?

    • @testingtechtips
      @testingtechtips 4 หลายเดือนก่อน

      Are you in the USA? I can't really help if you're somewhere else in the world.

  • @BungSmuggler
    @BungSmuggler 4 หลายเดือนก่อน

    This is great, thank you for the video! Currently working in a data center and this is exactly what I needed.

    • @testingtechtips
      @testingtechtips 4 หลายเดือนก่อน

      Great to hear!

    • @WillieCarpenter17
      @WillieCarpenter17 3 หลายเดือนก่อน

      TRAY! Hahaha I’m testing the bus duct at Google in Omaha now

    • @BungSmuggler
      @BungSmuggler 3 หลายเดือนก่อน

      @@WillieCarpenter17 Yeahhhhh buddy!!

    • @testingtechtips
      @testingtechtips 3 หลายเดือนก่อน

      🤫 you're not supposed to call it google lol gotta use their code names.

    • @BungSmuggler
      @BungSmuggler 3 หลายเดือนก่อน

      @@testingtechtips Oopsie 😂

  • @jask320
    @jask320 4 หลายเดือนก่อน

    Pumpkin = sniff tester 😂 "did you sniff it?"; Starter = screwdriver with a lock; VLF/ Tan delta= Very low frequency, good for testing cable insulation and can be used instead of AC HighPot; "To flush" = short the bushing of a transformer, for instance, to clear the resudal inductance of the windings; I am still at school taking EET, and I am not an English native speaker. I was so confused during my first coop term working with tech guys... PS I am from Canada, and have never heard pumpkin from guys

  • @jask320
    @jask320 4 หลายเดือนก่อน

    This is a gem

    • @testingtechtips
      @testingtechtips 4 หลายเดือนก่อน

      Thanks! I'm just happy to help people.

  • @ngonidzashenhari2386
    @ngonidzashenhari2386 4 หลายเดือนก่อน

    In "How to test relays ep0" you said episode two would be PTs , CTs ,trip circuits and schematics (how the relay interact with the power system).... hope you are still going to post it.... Thank you for sharing.

    • @testingtechtips
      @testingtechtips 4 หลายเดือนก่อน

      Yeah, I have big ambitions, and then my plans change constantly! I'm working like a dog right now at day job, and this channel is down the priority list after family and stuff. I make as much content as I can, but some times timing videos has to flex around when I have parts, equipment, and patience available lol. That is certainly a topic I'm going to cover though!

    • @ngonidzashenhari2386
      @ngonidzashenhari2386 4 หลายเดือนก่อน

      @@testingtechtips THANKYOU for your time,,,,,

  • @tonymag28
    @tonymag28 4 หลายเดือนก่อน

    what is the difference between 12IFC and 12IAC relays?

    • @testingtechtips
      @testingtechtips 4 หลายเดือนก่อน

      The IFC is newer (from the 70's I think) functionally identical, except it's physically smaller, has a plastic/phenolic case instead of metal, and they have a 2 position tap adjustment allowing each unit to have a larger number of pickup positions. All of the same testing steps apply, though double check the book for the tolerances and wiring connections!

  • @tonymag28
    @tonymag28 4 หลายเดือนก่อน

    Thank you so much for this. I really want to learn more and more about these relays since we are struggling big time

    • @testingtechtips
      @testingtechtips 4 หลายเดือนก่อน

      Glad it was helpful!

  • @alexauman2111
    @alexauman2111 4 หลายเดือนก่อน

    I hate that manufacturers use different dimensions. We should just get rid of test switches like this anyway and move to ones where you only need banana connections...

    • @testingtechtips
      @testingtechtips 4 หลายเดือนก่อน

      The fact that there are different standards and sizes is super annoying, but I actually like the utility of having a safe way to locally isolate trip and PT circuits and short CTs. The inconvenience of carrying around one or two test switch paddles isn't that bad. However needing 5+ different styles (including the ones for electromechanicals) is just awful.

    • @alexauman2111
      @alexauman2111 4 หลายเดือนก่อน

      @@testingtechtips yeah, that's the issue. sometimes you aren't sure which test switch they have and they you are SOL on site and need alligator clips or something else. There are some manufacturers that make isolation devices that then open up to a banana port, SecuControl for example. Even SEL dabbled in it, but it never made it to production

  • @ericnotich9128
    @ericnotich9128 5 หลายเดือนก่อน

    I understand the reason for splitting the leads, but since your using A phase as I2, is the resistance of the A phase bus added to the resistance of C phase bus? And adding to the topic of measuring longer bus assemblies, what do you use/recommend for a situation where you would need ~100’ leads?

    • @testingtechtips
      @testingtechtips 5 หลายเดือนก่อน

      Since the DLRO uses the resistance between P1/P2, the voltage drop of the only phase with both a P and I leads connected is the only one being measured. This technique works any time the thing we're testing is longer than your leads, even cables!

  • @ryndroma
    @ryndroma 5 หลายเดือนก่อน

    This is a surprisingly difficult concept to explain and you did a great job on it. The one thing I'd suggest including is how to split the leads. I'm seeing it become increasingly common to test the insertion resistance of the plugs going into the bus taps. A follow up video showing that concept would be a good one. It seems simple until you have a bus row using every tap point and a client that wants a reading isolated to just one plug, meaning you cant read from plug 1 line side to plug 2 line side since that captures the insertion of both plugs.

    • @testingtechtips
      @testingtechtips 5 หลายเดือนก่อน

      That's a good idea for its own video! I think I would need better visual aids for that though, probably one I'd need to shoot with bus and plugs in hand. Next time that opportunity arises I'll do my best to make it happen.

  • @JAC_Hammer
    @JAC_Hammer 5 หลายเดือนก่อน

    This setup will measure C phase resistance as well as the resistance of the jumper from B to C. If the jumpers are good quality and connected well, thats probably fine and wont change the results much. Its alot more effort, but whenever I test generator ISO-Phase bus (longer jumpers required to span the distance between phases), to test C phase, we would jumper A to C for current path, then jumper B to C for voltage measurement. This way it removes the resistance of the jumpers. The extra effort is from having to reconfigure the shorted end for each test.

    • @testingtechtips
      @testingtechtips 5 หลายเดือนก่อน

      That's a good point, the important thing would be to minimize that shorting resistance as much as possible. For larger isophase bus that is much more of a concern than smaller bus duct.

    • @ryndroma
      @ryndroma 5 หลายเดือนก่อน

      Agreed, in theory it should work, but in practice I've had mixed results. I usually test: Phase P1/C1 P2 C2 Jumpers A A C N C to A & N to A B B C N C to B & N to B C C A B A to C & B to C N N A B A to N & B to N G G A B A to G & B to G