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Testing Tech Tips
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Добавлен 28 янв 2023
NETA Apparatus and Relay Testing
I'm a NETA level 4, NICET EPT level 4, and have 11 years in the field. I have worked at power plants, utility substations, hospitals, hyperscale data centers, government, and heavy industry.
This channel is an independent project and is not associated with any company, association, or sponsor. Any statements shared here are entirely my opinion. The information contained here shall not be considered a substitute for or superseding to proper training, codes, laws, or any other guidelines. Only trained, competent, and qualified electrical workers can perform electrical work. RUclips videos DO NOT make you a qualified electrical worker.
I'm a NETA level 4, NICET EPT level 4, and have 11 years in the field. I have worked at power plants, utility substations, hospitals, hyperscale data centers, government, and heavy industry.
This channel is an independent project and is not associated with any company, association, or sponsor. Any statements shared here are entirely my opinion. The information contained here shall not be considered a substitute for or superseding to proper training, codes, laws, or any other guidelines. Only trained, competent, and qualified electrical workers can perform electrical work. RUclips videos DO NOT make you a qualified electrical worker.
GE IAC Masterclass Part 2: TESTING - How To Test Relays ep6
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 electromechanical overcurrent relays still in service all over the world, and if you're fortunate enough to be employed in maintaining, testing, and calibrating them, you'll need to know this procedure.
The test paddle shown in the video is GE part number XLA12A1.
www.gevernova.com/grid-solutions/products/br...
There are still tens of thousands of electromechanical overcurrent relays still in service all over the world, and if you're fortunate enough to be employed in maintaining, testing, and calibrating them, you'll need to know this procedure.
The test paddle shown in the video is GE part number XLA12A1.
www.gevernova.com/grid-solutions/products/br...
Просмотров: 167
Видео
GE IAC Relay Masterclass Part 1 - How To Test Relays ep5
Просмотров 52221 день назад
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
Просмотров 460Месяц назад
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
Просмотров 1,2 тыс.2 месяца назад
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
Просмотров 7913 месяца назад
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
Просмотров 9464 месяца назад
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) ruclips.net/video/3o6jNp7KVkM/видео.html Another very good video about the...
How to Download/Install Settings on SEL Relays - How to Test Relays ep1
Просмотров 2,4 тыс.4 месяца назад
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
Просмотров 6055 месяцев назад
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
Просмотров 6525 месяцев назад
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)
Просмотров 1,9 тыс.6 месяцев назад
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!)
Просмотров 1,1 тыс.7 месяцев назад
Here's more info than you asked for about the similarities and differences between NETA and NICET, both from the tech's perspective, and the organizations as a whole. I share some insights about the exam content, certification requirements, and tips for studying for the exams! Time cards: 0:00 - Intro 1:06 - Similarities between NETA & NICET 3:37 - What is NETA? 7:02 - What is NICET? 9:29 - Dif...
40 Phrases and Slang you NEED TO KNOW as an Electrical Technician
Просмотров 9608 месяцев назад
Here are 40 terms and slang words that every electrical testing technician NEEDS TO KNOW. Here are some helpful links going into more detail than what I covered in the video. Link #1 - Hi- Pot Info ruclips.net/video/gJ982SuNWwM/видео.html Link #2 - Phasor Diagrams www.electronics-tutorials.ws/accircuits/phasors.html Link #3 - Sequence Components voltage-disturbance.com/power-engineering/sequenc...
Write Professional IR Scan Reports with FREE Flir Thermal Studio
Просмотров 1,1 тыс.Год назад
In this video I show how to write great, professional looking reports with Flir Thermal Studio - Free Edition. There are a few tips and tricks to getting amazing results, including some work-arounds for the premium paid features which are limited in the free version. Your customers will love it! Intro - 0:00 Notes to take on site - 1:32 Starting a new report - 2:27 Adding images - 2:40 Editing ...
How to Test Breakers ep2: Medium Voltage Vacuum Circuit Breaker
Просмотров 4,9 тыс.Год назад
In this video I run through all the required NETA MTS tests to perform maintenance on a 5kV Medium Voltage Vacuum Circuit Breaker. 0:00 Intro 3:32 Visual and Mechanical Inspection 7:42 Manual Operation 8:22 Electrical Operation 10:28 Contact Timing Test 15:10 Insulation Resistance Tests 17:01 Contact Resistance Tests 19:10 E-Gap (Contact Wear Measurement) 20:45 Vacuum Integrity (Hi-Pot/Overpote...
How to Program Siemens ETU500 & ETU800 Trip Units with Sentron Powerconfig
Просмотров 1,8 тыс.Год назад
How to Program Siemens ETU500 & ETU800 Trip Units with Sentron Powerconfig
ABB vs States Test Switch Paddles - Flexitest FT1 vs FMS
Просмотров 2 тыс.Год назад
ABB vs States Test Switch Paddles - Flexitest FT1 vs FMS
Test Equipment Repair - 1 MASSIVE FAIL, 1 success!
Просмотров 276Год назад
Test Equipment Repair - 1 MASSIVE FAIL, 1 success!
How to Test Breakers ep1: Thermal Magnetic Trip Units
Просмотров 4,1 тыс.Год назад
How to Test Breakers ep1: Thermal Magnetic Trip Units
Inexcusable Problem with NEW ABB Breakers
Просмотров 526Год назад
Inexcusable Problem with NEW ABB Breakers
2:30 Sounds ABBout right
Love this thanks for being willing to put yourself out there pretty brave! I would hope that one day you’re willing to walk through some PF/DF results from transformers and just talk about what to look for instead of just pushing buttons lol. Thanks brotha
I want to cover that too! It's definitely on the list.
Hey the adjustment for the toc pick up is not the drag magnet it is the spring adjustment. The drag magnet adjustment is for the time setting. In the event that the time dial setting needs to be finely adjusted you move the drag magnet. The instruction manual explains this.
Thanks for your comment. First off, I should have done a better job discussing this in the video and plan to make a part 3 to cover this. From tweaking hundreds of these in the past, both the magnet AND spring adjust both the pickup and timing to some extent. #1 the spring is easier to make fine adjustments, whereas a 1/8" movement of the magnet changes the characteristic drastically. #2 when considering the tolerance bands we're looking at, it seems to be easier to bump the low end of the curve (2xTAP) into calibration using the spring without pushing the pickup result out than vice versa. If either test fails by a small percentage, I start with the spring and can usually get everything dialed in. If the fast end of the curve (>6xTAP) is out of spec, it's likely at that point you'll need to move the magnet to get the high end dialed in and then adjust the spring to correct the slow end after. Just what I've found though, and your mileage will vary. And it's important to test the pickup AND curve against after tweaks which I didn't demonstrate in the video.
It’s really great, thanks for sharing your knowledge ❤
Happy to help!
Hi! I was wondering if you would be willing to make a video on how to create a test file from a Schweitzer RSS file?
I've always been taught that adjusting the clock spring is for adjusting pickup. To adjust the timing, you should have adjusted the drag magnet, not the clockspring. I'd be interested to see how much your pickup moved now that you moved the clockspring. I know when you adjust one thing, it moves the other so you can often get away with tweaking one thing to fix both (or at least get away with staying with tolerance) as long as you go back and retest pickup/timing to re-verify the tweaks.
That's a really good point and I don't think I mention it in the video. Both adjustments affect both the pickup AND timing to some extent. I've found that a small adjustment to the clock spring has a more drastic effect on the time curve than the pickup in terms of the percentages we record during testing. That said, I certainly should have retested the pickup after making the adjustment. And I agree, I too am curious how much that tweaked the pickup. Thanks for your comment, now I need to make a follow up video 🙃
I hear some AvE in that intro, good content. Thanks for all of the info, newbies like me really need this sort of stuff :)
Glad to help!
Have you ever gone to some of the Doble protection conferences? If you ever find yourself using Doble RTS, let me know.
Nvm, I see your registered with EPS/CFR
I'm actually entirely self-taught on PS and rather dislike using RTS. Nothing wrong with it when it works I just never needed to use it and I'm really quick with PS. I also haven't worked at EPS since 2018.
I didn't think anyone cared to learn about these old relays anymore. Thanks for sharing the knowledge!
There's still tens of thousands of them around in service in old factories and (shockingly) substations around the US. If no one learns about them we'll be screwed when all the old guys retire!
Appreciate you for this 🙏
Happy to help!
This electric stuff bringing in a lot of different products. Why not have gfci surge protection and thermal magnetic protection all in one?
Well, sometimes phase overcurrent protection and ground overcurrent are protected by a single breaker. But there's a couple reasons to have them separate. #1, as usual, is cost. Not all circuits require GFCI protection and depending on the size of the breaker, it makes it 20%-100% more expensive per breaker. If you don't need GFCI protection, you can save a significant sum of money by not having it. In some instances, ground fault protection is only enabled on the main service entrance breaker and that protects most of the rest of the system from ground current. It also simplifies troubleshooting and repair if you have discrete parts that can be replaced. Surge protection is a different function entirely. If you have a large surge protection device or "TVSS" near the service entrance, that can protect the whole rest of the system from transients from one location, but like in your home it's easier and cheaper to have a small one for each piece of sensitive electronics you have plugged in.
@testingtechtips thanks for getting back to me. I need to run a 20 amp outlet where there is no ground and I would like to have surge protection as well since I'm in high lightning storm area. So I just have to get it all separately it seems.
I have been watching few of your videos from your channel, and they really made me want to change my career. So my question is how do we become a Testing Technician. I forgot to mention I am working as a PLC/ Electrical Equipment Technician.
The easy way to start is to call up your local testing companies (you can search for them at netaworld.org) and see if they're hiring. Often guys with little or no experience can start in a breaker shop or motor shop and work their way out into the field, but PLC work is a pretty good background to slide right into real testing. Since it mostly requires on-the-job training anyway, no formal education is usually required. Just depends on what the company you're interviewing with is looking for. Positions open up all the time so it doesn't hurt to check back often. A lot of them even have remote positions open if you're willing to travel.
Thanks for the Info
Would you be willing to put out some videos on setting up some 50/51 tests using protection suite? Possibly using EM relays and SEL? I am new to protection relaying and my company uses Doble. After maybe some 21 and 87 relay test setups with the same?
Yes, that's exactly the plan! The next video coming up is testing a GE IAC with Protection Suite, I've got a Basler and couple SELs after that. It just takes me a long time to edit and post these. I'm a busy guy, not a professional RUclipsr or editor lol.
Totally understand thanks so much. I’ve been working at a utility company in the north east doing telecommunications and just a year ago, got hired into the field engineering test department. Totally different animal over here but of all the things the department does I love the relay work. Super cool. Thanks for your help do you have any good sources I should look into. Your videos are awesome.
Thanks!
Thanks so much for starting this series. There isn't enough "modern content" for today's relay tech
I know! It's crazy how you can learn everything else on RUclips but not relay testing.
Thanks អរគុណ❤
Great video, not much out there showcasing Doble
Yeah, they're definitely protective of their IP which was why I was hesitant to make this video in the first place. But they said I could in writing and I'm happy to share!
@@testingtechtips I always found distance relays a hard one to get around on Doble.
@@50Hz I have a video for that planned! It's going to take a bit to shoot, edit, and upload but it's coming I promise!
Cool video. Previously a NETA IV. Not much on RUclips about this stuff.
Thanks! I've learned so much from forums, friends, and RUclips over the years I'm really just trying to concentrate all that into a single resource here on the channel.
Excellent video! I haven’t been thru all the vids yet but was there any response or info put out by ABB?
Nope, crickets from ABB other than a recommendation to perform IR scans and replace the breakers with hot lugs.
Even though I do not fit the mold of “ who” you are doing these for, I find good value in what I can look to apply in my work ( as little as that may be). Just a maint electrician but when outside contractors show up to test our 13,2 cables , test our transformers etc….it is a good feeling to understand and communicate in terms that are used. My only real “ hands on” for the 13,2 is dealing with the A -B A/B loop switching. A guy can dream! Thanks
Hey the more you learn the more valuable you are when push comes to shove. Even if it's not "your job." Thanks for watching!
Quality stuff.Thankyou very much 🎉
Glad you enjoyed it
I've always shorted my windings with Megger.
There's nothing wrong with that.
@testingtechtips I see alot.of people say they take advantage of already having their windings shorted and do PF and megger back to back. Do you worry about megger magnetize your windings and effected your SFRA due to megger being a DC test?
@TrevorGoochFishing yes, absolutely. SFRA is a very sensitive test and performing Megger or winding resistance will skew your results. Winding resistance definitely has a more drastic effect but megger can as well.
Awesome stuff. Thank you and it is appreciated.
I appreciate the support!
So you’re saying this will be on the test?
Lol the formulas are on the cheat sheet they give you so... maybe?
Well, we all know what the Another Bad Breaker stands for
🤣 it's such a simple thing they could have fixed!
great great vid! thanks and congrats!!
Thanks for watching!
Because math!!! I say that all the time 😂😂😂
🤣 no one likes that answer but that's the way it is!
Great video! Although we short the windings during Megger so that we can transition immediately to Power Factor test. Can you talk about negative insulation power factor too? I've read some literatures about it but I'm not sure if I fully understood them. Cheers!
That's a good point. It really shouldn't affect the megger readings one way or the other. If your power factor result is negative in the context of an insulation power factor test, it means the reading is more inductive than capacitive. Current flowing through/out of the winding under test is leading the voltage (remember ELI the ICE man). I'm not the all saying guru about every type of transformer, but every time I've seen a negative PF it's been because we hooked up the test set wrong, something wasn't grounded, or there was an internal winding issue like a bad DETC.
As a journeyman relay tech, I love your videos, your thorough understanding of the subject and your great sense of humor. Please keep it up!
Thanks! I'm glad people find them useful
Love the video! Well done. Keep it coming.
Thanks, will do!
Great Job and it is nice work..... but I have a comment, I think when you do the Hipot Test you have Two ways to test it first one is by closing the CB and taking every single phase with earthing another phase. the second way is by opening CB and shortening the top boles and applying High voltage by earthing the below Boles. if you see something that I cannot see tell me Please and thank you for this information
I'm following the NETA MTS standard for this video. The only hi-pot/dielectric withstand test required for this type of breaker is the "vacuum bottle integrity" test which is primarily ensuring the contacts are effectively open. The DC insulation resistance(megger) tests verify everything else is good.
I like what you're trying to do with simplifying the hipot test and it does work for bottle integrity but it would not be an acceptable test for phase to phase or phase to ground as your method never actually energizes the load side of each phase. Standard practice from what I have learned is breaker open applying voltage line to load for each phase in guard mode for bottle integrity, then breaker closed applying voltage to line/load of one phase in ground mode with other phases shorted together and to frame, ground lead stays on frame the whole time, return lead is on load side for open pole and shorted phases for closed pole tests. Make sense?
Thanks for your question. If the leakage current from line to load and ground is less than the max allowable leakage current across the bottle (if spec'd out) then the current exclusively from line to load is going to be less than that. This meets the NETA spec for the vacuum bottle integrity test. There is no NETA requirement to hi-pot phase-to-phase, and I've not seen a recommendation to perform that from any OEMs, though you should always check the manual first! We are required to perform DC insulation resistance (megger) tests phase-ground and phase-phase which I cover earlier in the video.
@@toastymotors There may not be a NETA requirement for phase to phase testing as the standards do defer to manufacturer's published data for dielectric withstand but with your testing method are you not also automatically including phase to phase testing by shorting all other phases to ground/frame? Back to the main point of my original comment, dielectric withstand would still have to include line and load of each phase to ground correct? With the method demonstrated you are not applying voltage to the load side of any phase with the hipot, effectively missing half of a normally energized insulation system per phase in your measurement. Enjoying the videos by the way.
Again, the only hi-pot/dielectric withstand test required by NETA is the vacuum bottle integrity test, so what I showed meets the requirement. I totally agree though, there's more that you MAY need to do. I know for like pole-mount reclosers the OEMs will spec out line->load and load->line tests but to the best of my knowledge that isn't required for any draw-out MV breaker.
This looks pretty clean environment, highly unusual for Potomac Edison..
lol it's on the customer end inside a hospital. But yeah.
@@testingtechtips And a great life hack for the temp control handle removal, but this would be frowned upon in some companies. I’ve tested hundreds and hundreds of EM, solid state and MP relays and never had a misfortune to accidentally bump the control handle. I prefer to use the plain Jain white masking tape over the control switch, that worked for me for many years.
does C662 cable work with GE relays?
Yes* I've had good luck with it working by moving the DCS/DTE switch, BUT I've had a few guys tell me it doesn't work on older GE relays. Not sure why. I always keep a C662 and a separate generic RS232 cable (I recommend one from Startech.com cause I know it's good quality), a null modem adapter, and gender bender in my go-bag just in case.
When is the next video covering the adjustable MCCB coming out?
Excellent question, I'm not sure. I changed jobs and now I don't have easy access to a breaker test set or a shop full of parts. I'm making every effort to arrange that for a video but it's going to take a some time, unfortunately.
Great job man, hope you keep doing these.
Thanks, will do!
We have a GE FTC-058 test switch. Wondering if the test plug can be used during an outage to inject test current into the protection device?
The GE FTC-058 is a standard ABB pattern "flexitest" test switch. Looks like they're only using the middle 8 positions but a standard ABB or 10-pole states test switch will work fine.
"Senior Power Station Electrician" + Fort Belvoir = 12P 😎
why doesn't the requirement apply to industrial facilities?
I chose my words poorly. There is nothing inherently different between "commercial" and "industrial" according to NEC and 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 maintenance mode isn't (typically) relevant for heavy industry.
Great video
I enjoy learning from you videos 🎉
Hey man, i love the content. Let me know if you ever need an apprentice.
I've proposed to utility hydro plants to upgrade their GE electromechanicals to EDR's or SEL's and was told they will keep the GE's forever as there is no way to be hacked.
Can't hack the network if there's no network lmao.
😂
Just wondering would it make any difference in the timer reading if using contact sense instead of current sense in the magnetic trip test?
Yeah, hooking contact sense up on a separate phase would probably make it time more accurately. I've never seen anyone do that in the field but it makes sense!
I've been waiting for a youtube channel like this. got 6 more weeks till my NETA II
Sick! Good luck!
Thank you for a very detailed explanation on this topic
Yeah it's hard to get a full grip of maintenance mode in general since so many sources only give you little bits of info for a single system.
Thank you for filling this niche, I have already learned quite a bit from you and I am super excited to keep learning. Keep kicking ass and taking names!
Thanks! I'll keep them coming!
Raw doggin projects 😂😂😂
Lol
Great video 👍
Thanks 👍
Хорошее видео, спасибо
Thanks!