Just another tip, always check the leads to your meter and make sure there are no nicks in the conductor insulation
@dwaynes5983
2 жыл бұрын
One time I was testing voltage, 90vdc, found out meter was bad. I check on known voltage to check meter.
@scottbustos819
2 жыл бұрын
This video should be used to train any motor controls tech. Took me years to get to this point, this would’ve saved a lot of trial and error.
@krakenwoodfloorservicemcma5975
Жыл бұрын
Me as well. I spent 12 years as a locomotive technician and had to learn a lot on my own. Good video.
@alexdelgado9231
2 жыл бұрын
Thank you for this video. I wish school focused on this topic, but I’m sure my new job will train me in this aspect.
@adanarceo4636
4 жыл бұрын
Wow, amazing explanation sir, I'm getting, or should I say, I'm learning a lot with this presentations. Thank you very much for sharing this, and for your time and dedication on doing this videos. God bless.
@bhampresson
4 жыл бұрын
Great job! Thank you so much!
@brianberson4169
7 ай бұрын
Excellent vid
@AccessToPower
6 ай бұрын
Thank you for your comments. I am glad you found the video helpful.
@mistertruth8001
2 жыл бұрын
Great video!
@jamesandrew1117
3 жыл бұрын
Appreciate the video! Thank you!
@Deuce_390
3 жыл бұрын
Great video 👍
@timdunk7278
2 жыл бұрын
That was awesome! Thank you
@AccessToPower
2 жыл бұрын
Thank you
@joehamilton5467
3 жыл бұрын
Very helpful....please make more
@bigt443
4 жыл бұрын
Good video very helpful Big T
@1HUNNETb
Жыл бұрын
Great video... but you should test phase to ground first. Not phase to phase. People have injured themselves going phase to phase first
@FRJ1982
5 ай бұрын
What should your reading be then? Up and coming maintenance mechanic, I like to learn these tricks of the trade
@1HUNNETb
5 ай бұрын
@FRJ1982 ur reading should be your full supply voltage divided by 1.7 for each leg. Eg: 480v would give u 282v per phase which is 277v
@FRJ1982
5 ай бұрын
@@1HUNNETb I appreciate your input, so a 240v should have a 120 per leg reading I'm guessing?
@richardrombotis8169
3 жыл бұрын
Walter, circuit energize and pulls in the contractor immediately when powered. I have wired in multiple push button stations and buttons have no control after wiring in multiple push buttons. I have a time delay and a latching relay. I was running into a situation where I could not take my finger off the start button. Now it is continuous. I traced wires and everything seems to be in order. Could a relay be burned in ?
@AccessToPower
3 жыл бұрын
Somehow you either have power from your start buttons supplying your coil when the buttons should be open, or you holding relay is closed and immediately energizes the coil. Pull the jumper from the coil to the holding contact off. Turn on power. If the coil closes then the problem is on the start button side of the circuit. If the starter does not start then the problem is on the holding side of your circuit.
@jlreyes7424
3 жыл бұрын
awesome thank you so much
@formulaonegrandprix1
2 жыл бұрын
sorry but black lead is for neutral or ground and red for the hot wire. Thank you
@AccessToPower
2 жыл бұрын
Hi. Please don't confuse this wiring with what you may know of vehicle wiring. Normally a neutral wire is white. A ground wire is either bare or green. The wiring you see in this panel is prewired from the factory and they are using black and red wires internally. These include the neutral control wiring to the overload contact. If any neutral wire is leaving this panel for, in some cases without an internal transformer, feeding this panel then that wire would be white in color.
@danschumacher5427
Жыл бұрын
Yes
@DarkKnight-ys1yg
5 жыл бұрын
Do you have a video on how the overload works? Still not getting your answer to my questions.
@AccessToPower
5 жыл бұрын
Hi Dark Knight. Toward the end of this video kzitem.info/news/bejne/zH6YvpaBcIVia20 I go over how an overload turns off a motor by breaking the neutral to the starter coil.
@peterstiles1
4 жыл бұрын
Good video, thanks, but the PPE? Mate, don't you think you're taking your life in your hands? You'd be safer if you wore an inflatable suit at least a foot thick all around. Also, have you considered that you'd be at least minimally safer if you operated a remote controlled robot to do these tests and controlled it from space?
@AccessToPower
4 жыл бұрын
P 1 . Lol... I know it seems extreme but it is the PPE required by the NFPA 70e and enforced by OSHA. So hopefully by making this video with the correct PPE on, I am helping others to be aware of the dangers and the how to stay safe.... thanks for watching and commenting!
@jasonbone5121
4 жыл бұрын
...and the Darwin Award goes to!
@brucehackney2217
4 жыл бұрын
P1 must still live in his parents basement!!
@steadyuser919
Жыл бұрын
My brain hertz
@GLENN1950ify
4 жыл бұрын
not being a troll, but that test procedure is terribly cumbersome. and exagerated. this problem will be deduced on about 9 seconds in the real world. a lot to confuse a newer guy.
@ionutth4895
3 жыл бұрын
oh PPE for an electrician... what the fuck is that? lmao
@Hambxne
5 жыл бұрын
this is one of those rare gems you find every once an awhile. thank you so much for this video walter!
@AccessToPower
5 жыл бұрын
Hambone. thanks for your very generous comment. it's very much appreciated!
@SuperYos007
3 жыл бұрын
Hey thanks for the video, I am an Electrical Field Engineer, I understand the electrical terminology. However seeing the actual Motor Control Breaker and unit really paints a bigger picture. Allowing me to understand the technician side of the work making it easier for me to understand his side and explain it better in my side. Both fields of study are very important in the Field. Thanks a lot again.
@nickledimez4012
4 жыл бұрын
Excellent videos!! Thank You! I am surprised that at my work none of the crew wear Ppe and we deal with 277-480 volts !! I have learned more from you In 10 minutes than I have in a semester or any journeyman at work.
@deadontarget8503
3 жыл бұрын
That level of PPE is unnecessary at voltages of 480 and lower. I have only suit up like that when dealing with higher voltage busses as an industrial electrician. With that being said, working in an horizontal panel like in the video does present additional safety concerns as he is work over top of the live lines.
@jordanbilyeu3798
3 жыл бұрын
I mean I agree we don’t use that much PPE either but if you follow OSHA this is what you get
@stanley1826
5 жыл бұрын
Awesome video! Just wish you can see the meter display while doing the voltage checks. Will definitely check out some of your other videos.
@AccessToPower
5 жыл бұрын
thanks for the comments. I appreciate the feedback.
@christophersoto2657
4 жыл бұрын
Just a tip. when you test the line side power or any power make sure that you pull both leads of the meter off so you do not carry over an arc when checking the other phases. Just a tip to keep you safe.
@truthbebold4009
4 жыл бұрын
I was not aware of this hazard. I'm a newbie electrician and would like to get more knowledgeable on working/troubleshooting in panels along with associated hazards. What's a good online resource or book for this topic? That all covered in NFPA 70e? I haven't delved into that area much. Thanks
@christophersoto2657
4 жыл бұрын
Read the NFPA70E handbook that will get you started in the right direction.
@Tex_Strong
11 ай бұрын
Thanks for this video. I went to a 5 yr apprentice program and this type of stuff they don’t teach. Should be able to learn on the job but maybe you cover once than just get stuck doing wire pull or cable tray for 2 years at a data center.
@AccessToPower
11 ай бұрын
I agree. Thanks for leaving the comments. Glad the video is helpful
@mattozx6rr
3 жыл бұрын
Just a word from a pump guy. The only testin you need the power on for is the legs and transformer. All the rest can be done with the power off and the meter set on ohms. Dont just meg a motor, ohm it across the windings as well. You can at least give the customer an idea of how much life is left in the motor or pump.
@angus47371
4 жыл бұрын
Not to be nit picky but I believe it's pronounced Ba-la-cla-va. Otherwise great tutorial!
@bricemiller1988
4 жыл бұрын
While it's a decent video I'd suggest a follow along ladder diagram
@justinhosmer2500
4 жыл бұрын
Did you ever receive a diagram?
@paladin_war
3 жыл бұрын
@@justinhosmer2500 nope lol
@stickelerwinner3429
4 жыл бұрын
Yeah safety is first, but in my type of business we wouldn’t get anything done with all that on...thanks for the video
@firstlast8805
4 жыл бұрын
Stickeler Winner where do you work the burn treatment center?
@walkerdrae
3 жыл бұрын
That's OSHA for ya
@taylorsellers5244
Жыл бұрын
You have definitely earned my subscription! Seeing the troubleshooting process "step by step" really made the knowledge click for me. Great job
@davidhamilton2708
2 жыл бұрын
A diagram, also showing the reading of your damn while you’re testing!! Would be beneficial to the viewer.
@isaiashernandez3818
2 жыл бұрын
Your awesome videos are very helpful. How do motors designed for both wye and Delta configurations change/switch from starting wye to running Delta? Please and thank you.
@chrislawson1233
4 жыл бұрын
Great video, thank you for taking the time to make this. In the field, for the sake of time, I would do more half-splitting when checking for voltages. For example, I would have started by checking for mains voltage right at the starter, and only gone back to the breaker if I didn't have power at the starter itself.
@AccessToPower
4 жыл бұрын
Chris Lawson great point. This will spread up the trouble shooting process.
@Zapgod
2 жыл бұрын
Some of our motor controllers have permissives which make it harder to troubleshoot. Especially in our galley where the control circuit is tied into fire switches, dampers, gaylord wash panels which has its own circuit, and fire pull down switches. Finding shorts is a nightmare where no indication of burns can be found, only thing you got is blown control circuit fuses. Thats why its good to learn to read electrical schematics and diagrams.
@Rodskrrt
Жыл бұрын
That does sound like a nightmare. Honestly I feel like we are using flawed systems in the us at least some of the old ones.
@sh115067
2 жыл бұрын
I just had to diagnose a starter where the coil in the contacter wouldn't release. There were three disconnects with stop/start controls. On one of the disconnects, the hot of the stop button broke off and was making contact with the line side of the start button, bypassing the stop buttons
@AccessToPower
2 жыл бұрын
Nice job
@madfrogs3578
5 жыл бұрын
Great videos, thank you! Is there any way we can see the wiring schematics? I'm sure it's basic, but I'm new, learning and curious. :)
@AccessToPower
5 жыл бұрын
Thanks for commenting madfrogs! On several of the videos we show the schematic at the same time I am going over the physical wiring. Check out this for an example of what I am talking about. kzitem.info/news/bejne/zH6YvpaBcIVia20. Also, the video coming out this week will also have a schematic and live wiring example of a forward reversing starter.
@josemelendrez1429
3 жыл бұрын
Great video ! It would be nice if you could do a demo video on how the Auto function works with a common problem like PLC signal missing or any other signal problem. Very good job showing the hand function of the motor! Will definitely check some of your future videos!
@iddrisurafiw1694
Жыл бұрын
Sire please how can I troubleshoot an Smc flex soft starter tripping on fault 18 no load. Please help me out. Thank you.
@bengunn3698
4 жыл бұрын
For fucks sake if he needs all that protection he best get out of the trade.
@ScientistPrepper
3 жыл бұрын
What a good video and nice gentleman. Thank you very much.
@MrWestside925
Жыл бұрын
Dude Thanks for the call out on the NFPA cat levels & what it needs to be compliant.
@DiamondMinerIvins
3 жыл бұрын
277 volts 554 volts. i wonder if they will cause motors to burn up and started to go out faster kinda like the 120 volt incandescent lightbulb, and most houses are at 127-130 volts.
@joshleyba3854
5 ай бұрын
I have 4 mixer motors at a WWTF. I have had to turn the yellow amp adjustment from 8 to 14 amps to keep them running with out tripping. 1 of of them however now runs for 1-3 mins then trips everytime. Pulled and megged motor. It is good. Voltage is good and consistent with other mixer motors. I have not seen Amps above 7 on anyof the motors including the one tripping. Any suggestions? Going in circles with Evoqua. Plant is 1 year old. All ran good first 6 months then developed issues after that.
@garygangster2414
4 жыл бұрын
good video... as he covered all the steps. If he had checked across the NC contacts after he had checked both sides and received his control voltage then he would have known that the NC contacts were open. If it was closed he would have received 0VAC. Also I don't know what level is this but I think it would have been helpful if he explained what the "holding contacts "were and there purpose.
@dwaynes5983
2 жыл бұрын
Nice video. After testing if voltage at coil. Shut down disconnect wires to coil and ohm coil. Sometimes it's bad.
@jbombbeats2129
4 жыл бұрын
Awesome video, awesome channel! You're truly changing lives with sharing your knowledge
@AccessToPower
4 жыл бұрын
Jake Lesperance thanks for your comment. I appreciate it.
@anthonymalone5515
2 жыл бұрын
Well I must say this is the most informative video I have every seen. With hand on on demo. Thanks
@AccessToPower
2 жыл бұрын
Thanks for the great comment!
@warmongerel9743
Жыл бұрын
In real life, you push the blue reset button and try to run the machine. If it trips again, you know that you have a problem. 9 times out of 10, the operator did something to overload the motor. So you tell the operator to run the machine and watch what he does. You'll almost always find that he's doing something wrong or that there's a mechanical reason for the motor to be overloading. It certainly can't hurt to know this stuff, but it's usually a waste of time to troubleshoot motor starters this way unless there's no other explanation. And there's almost always another explanation. I've been a Maintenace Technician since 1980. Your view is from an Engineer's standpoint. Mine is from real life.
@johnhislopjr.7487
5 ай бұрын
Ive had to check a lot of these. I would check the overload for tripping first. Then the 480 V fuses and then the motor for grounds. I found that rarely did the control circuit had problems.
@dahquan1000
2 ай бұрын
Thanks for video, question how can someone find a ahu motor size from the starter in a 460 volt panel box?, thanks
@nickmedina3903
5 ай бұрын
Should also make sure that your multimeter is rated for the voltage/ amperage you're measuring. If the multimeter isn't rated appropriately it could cause death.
@mattylad8035
2 жыл бұрын
It's a "Balaclava", pronounced "bala clava"... not "bacalava".. :) I think most would have looked to see if the overload has tripped before getting dressed up and getting the meter out.
@automation_jeff
3 жыл бұрын
Walter, I assume you're still buying C-H controls from Willie Electric?
@suhermantjahyadi7361
4 жыл бұрын
Damn ... i should have bought those shirts before doing that for years
@davidkoenig8716
3 жыл бұрын
There can be scenarios when the starter pulls in but the motor does not run due to a defective phase contact(s). It can causes an overload trip, eventually, but may be a good scenario to discuss in your troubleshooting hints. Great presentation otherwise.
@lalotrbeca
4 жыл бұрын
very good video the only thing that I would recommend is always to use the RED in the hot and the black always to ground. when troubleshooting 24v this can cause read errors for technicians
@brucehackney2217
4 жыл бұрын
Doesn’t matter when measuring AC. I suggest a basic electrical theory class for you!! Besides if he were measuring DC it would simply put a - before the number. No big deal.
@lalotrbeca
4 жыл бұрын
my comment was for technician on control system and not for just a simple electricians
@mrreams711
3 жыл бұрын
@@lalotrbeca so let me get this right....What you are saying is that your comment was pointless?
@BetterThanSpam42
4 жыл бұрын
Thorough troubleshooting, but it would have been much safer to test for any motor wiring shorts to ground before going for a motor start. Glad to see you promoting proper selection and use of PPE.
@appurajraj1938
5 жыл бұрын
Great video. Please also do a video in trouble shooting VFD panels
@AccessToPower
5 жыл бұрын
Appuraj, Thanks for commenting on the video. we will be putting out more content regularly. we are currently trying for once a week. There will be a new VFD video coming out tomorrow morning, so stay tuned.
@danlopez5452
Жыл бұрын
I'm sure this is a dumb question, but when testing the hand mode switch and start push button, I see the black lead you were using but where was the red lead?
@sohailjanjua123
2 жыл бұрын
Hi, I like your video. Thanks
@garyarthurs
Жыл бұрын
Why are the contacts labeled 95 & 96 and 97 & 98. It appears random. Why not 1 & 2 and 3 & 4?
@nilla003
3 жыл бұрын
A schematic of the circuit being tested would be helpful. And starting around 4:44 I don't see where you are putting the red test lead.
@AccessToPower
3 жыл бұрын
@nella003, the lead was on the neutral from the 120 volt transformer. You can see where my leads are at the 5:49 mark and the black lead is on terminal 96 which is the neutral from the transformer feeding the Overload. That is where my other lead was in the 4:44 mark.
@xevierred6330
Жыл бұрын
Thanks, I'm a field testing tech, but I have long ways to go. This helps me that's why I watch your videos.
@AccessToPower
Жыл бұрын
Glad these videos are helping you. I appreciate the feedback
@athilaldurry5880
3 жыл бұрын
Excellent video,many thanks for this wonderful information
@Baz1122
Жыл бұрын
When you check for power on the switch did you have the other rod on ground cause I just see the black one?
@Mr.Mustgohard
7 ай бұрын
I just had this issue today which caused my company a whole 12 hours of down time. 😔😞😞. I was missing a neutral to complete the circuit.
@AccessToPower
6 ай бұрын
Thank you for the comment. Hopefully the video was helpful to you in your troubleshooting.
@monzurhasan3583
3 жыл бұрын
Wow, want more control panel troubleshooting Video 💖💖💖
@bunnandjenn9405
4 жыл бұрын
Thank you. I'm a new mechanic. i've learned a lot from your videos.
@MM-ov6uw
2 жыл бұрын
Question, why is your neutral and ground not color coated, they are both red ? Thanks
@bendoherty7721
5 жыл бұрын
Before testing to ground it is always good practice to test ground to ground to make sure you have a good ground
@elmasbuscado909
4 жыл бұрын
Thats stupid how are you going to measure ground to ground when your not sure if you have a good ground
@mrreams711
3 жыл бұрын
That's rather useless. There's no potential either way whether you have a good ground or not. You will see 0 volts in both instances... Nice try
@bendoherty7721
3 жыл бұрын
Test the resistance on the ohms settings. Come on lads. Use your nogging
@mrreams711
3 жыл бұрын
@@bendoherty7721 still doesn't yeild reliable results as a low resistance does not garantee current carrying capability.
@FRJ1982
5 ай бұрын
When you were testing the power button, where dod you have your red meter lead?
@kennydieu2694
2 жыл бұрын
Great tutorial video and very informative .Thank you
@JimmyJam_61
3 жыл бұрын
Who, in their right mind, would wear all that heavy, hot bullshit?!?!
@US-Warrior
5 жыл бұрын
Great vid sir! Would the stop button give a voltage across the Stop button on a tripped Overload?
@AccessToPower
5 жыл бұрын
parmathwal99, the voltage across the Normally Closed Stop button would have the same potential on both terminals, so it will not register on a meter measuring between those two points. But if you measure to the neutral at the transformer, or before the tripped overload, to the Stop button you will have 120 volts. Remember that you will still have voltage at the stop button and it can still shock you but you won't see voltage on your meter if measuring from a point with the same potential.
@US-Warrior
5 жыл бұрын
@@AccessToPower its For an exam question where they ask what device will measure 120v if the OL trips in the control circuit
@AccessToPower
5 жыл бұрын
@@US-Warrior I see. Both sides the stop button will still read 120 volts when measured to ground or the neutral before the OL contacts.
@ChiNguyen-wf1qt
Жыл бұрын
Don't these motor starter have an overload indication to show that overload had tripped?
@alexhernandez8659
2 жыл бұрын
so the nuertral/fuse went out and I know you said it came from the motor. How do you ensure that the fuse/neutral doesnt cause the trip to happen again?
@AccessToPower
2 жыл бұрын
It is the overload that tripped on the neutral side of the starter coil. It is not a fuse. This overload is set to protect the motor from drawing more current than it is rated for. This is to protect the motor from overheating and eventually failing. You will want to verify if the motor is operating within acceptable parameters. If it isn’t, the problem is not the overload, but most likely the motor. Or the load the motor is operating is to great for the motor itself.
@jmagnuson71
2 ай бұрын
Your nuetral wires should have been white. Great video otherwise.
@nicholasgarric2522
Жыл бұрын
great video Walter. Thanks a bunch bro
@pj-rx6qc
7 ай бұрын
Com lead should in place first. Or both placed at the same time.
@shauns6936
2 жыл бұрын
😂 I never wear arc flash gear thats way over kill. But good video man keep up the videos
@Rodskrrt
Жыл бұрын
I guess they don’t care about regulations there? Not that I care if they regulate or not but I’m guessing you do take your precautions
@SparkyHelper
4 жыл бұрын
Great video! My instructor recommended watching.
@gregariouswoodworks1270
2 жыл бұрын
Absolutely amazing quality video and explanation.
@AccessToPower
2 жыл бұрын
Thank you
@RaldasDetails
4 жыл бұрын
Great video man!!
@chinds2069
Жыл бұрын
LIKED , SUBSCRIBED
@hectortorres542
2 жыл бұрын
Thank you for the video,
@AccessToPower
2 жыл бұрын
Your welcome
@ryanwhite6325
Жыл бұрын
When testing power to the hand off auto did you go to power to ground?
@beckyschwantes5287
3 жыл бұрын
Hook the nc thermal relay contact to an aler led and you would t have to go through half Of this. Just figure out why the motor is tripping.
@philliplee7703
Жыл бұрын
Very good video, please continue 🎉
@javiersalas7670
3 жыл бұрын
I would suggest testing for a short (grounded conductor) or megging the motor first before turning the HOA to hand or pressing the start button....good video though!👍
@railcar123
5 жыл бұрын
Wondering if you could do a video on megging out a motor? Thx
@AccessToPower
5 жыл бұрын
Thank you for suggesting the video for megging a motor. I will try to do that soon.
@EquipteHarry
18 күн бұрын
Harris Angela Allen Linda Perez Margaret
@121790tyler
2 жыл бұрын
Could also trip due to a single phasing leg on the overload
@bigo2391
4 жыл бұрын
great video but it is better without the music instrumental in the background,the music sound can throw off the learning concentration.
@seans_shorts
3 жыл бұрын
Thanks bud
@Elmaintenancetv08
4 жыл бұрын
Hello sir. Does the control circuit has its own power supply? Thanks!
@AccessToPower
4 жыл бұрын
EIM - NCII Alaktrician the control circuit has a control transformer fed by the main 480 volt circuit in the panel.
@Elmaintenancetv08
4 жыл бұрын
@@AccessToPower Thank you for your answer sir! Your tutorial surely helped.
@cfgman9176
Жыл бұрын
Really good video...just an observation looks like it's permissible in the US to use probes with excessive metal showing ? This would be shunned in the UK although it does occur here amongst some pros.
@AccessToPower
Жыл бұрын
Thank you for your comments. Requiring test equipment and overall electrical equipment to be finger safe is much further along in the UK and in the rest of Europe than in the US. I think there is some movement in that direction, but we are not there yet.
@michaelcostello6991
Жыл бұрын
great
@williamcarrington3087
4 жыл бұрын
Good video...but I would have checked my motor leads to ground before re-energizing the circuit.
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