how to test 3 phase motor with multimeter

Let's learn how to test 3 phase motor with a multimeter
were are testing the following
1) Continuity
disconnect the motor from power and ensure that all the leads are not connecting to each other in the terminal box, test the continuity between each coil contact (U1 U2, V1 V2 and W1 W2) and make sure that there is continuity. if there is no continuity then probably your motor is burnt.
2) Short circuit test
We test short circuit between coils for Example testing between U1 and V1 and so on. There must know continuity between coils if all the 6 leads are out. ( the only exception is when the motor has been connected internally either in star or delta).
3) Resistance
While testing continuity ensures that you record the reading, the reading is determined by the resistance of the coil. The reading between each coil should be the same or the difference should minor.
Other videos to watch
STAR DELTA STARTER VIDEO • star delta starter con...
TIMER VIDEO • Delay Timers Explained...
FORWARD REVERSE WIRING DIAGRAM VIDEO • forward reverse switch...
FORWARD REVERSE WIRING VIDEO • forward reverse motor ...
CONTACTOR SELFHOLDING VIDEO • The Self-Holding Push ...
contact me here
[e-mail]
follow me on Twitter / davidssengendo
like my Facebook page / electerca
Visit my blog electrecasolut...
Buy contactors here amzn.to/39iW0p2
Push buttons amzn.to/3qN2DpN
AI Digital Multimeter amzn.to/2R1Q2mp
Need a float switch amzn.to/34TZStI
Disclaimer: ELECTRECA is a participant in the Amazon Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to www.amazon.com

[@alialshammari4985]

Very gorgeous illustrations, simplifying the lessons, thank you brother, please don’t stop your excellent work

[@electreca1]

Thanks for watching

[@jollyscaria1922]

Vrey good my brethres thankyou gueswelcomed

[@silviamalatji9680]

Excellent

[@joser6788]

It’s one of the simplest videos I ever seen to explain motor troubleshooting thanks brother !

[@hardiahsingh6739]

Very illustrative teacher , teaches very patiently. Very good.

[@electreca1]

Thanks, I appreciate that.

[@pjwendy1]

Great job! But please note those test are basic without a megger. Insulation resistance test or integrity are very critical, hence, can only be achieved by visual inspection and using a megger 🙏🏽….

[@lancemanning4944]

Good clear video. Worth noting that you are only testing with the small voltage from the meter. When checking for faults to earth ideally use a Megger which generates a higher voltage and will expose faults not shown on a multimeter.

[@jimkillen1065]

Yea when I went to work at a power plant a long time ago , there was a pump motor that was given problem. That was the time I watched the plant manager a old navy electrician use a megger to test . He found the fault and sent the motor out to be fixed . I bought one of those on e bay for my uses

[@g-baby262]

Me also first test the motor with multimeter and then with the megger

[@laurentianvmx1692]

We have a bad compressor motor, this video will be useful for testing thank-you !

[@glendagorogokunia9442]

Great job My one body colour.. Continue with what you have done.. ❤️💯♥️🙏💪

[@electreca1]

Thank you, I will

[@ManVsOven]

Good video, short and to the point (or NO short, means good motor 😁😁)... thanks !!!

[@electreca1]

Thanks for watching!

[@rscelectrical7091]

Nice job: Short and to the point

[@larrybassik2768]

Best Video On This Topic & Easy To Understand

[@electreca1]

Thanks for liking

[@olemaillimo481]

Really nice videos sir.i am really learning something from you here. May good lord bless you and your work you are doing out there

[@electreca1]

Thank you

[@mohdiqbalmuhammady4920]

Thank you sir
understand very clearly
you are the best teacher

[@jorgeaguila6774]

Great Job very thorough explanation Thank you🤙🏻🤙🏻

[@Sbrabson04]

Outstanding teaching

[@bahtatesfu2187]

Amazing explanation, keep it up the good job!!

[@ypaulbrown]

thank you , best wishes from the USA, Paul

[@electreca1]

Thanks for watching

[@Xxxcappie23]

Great video.Can you do a video on a single phase motor. I would like to see the difference between testing single phase and 3 phase.plz

[@electreca1]

Will do soon

[@allfaizal]

Simple and very easy to understand

[@takethe101totarzana4]

Nicely done. As others have posted, nice and simple explanation. Thanks for sharing.

[@sekyanzinathan7521]

Sekyanzi Nathan. Thanks for such a good video, I appreciate yr time.i would like to show me how motors are grounded. thanks.

[@paperchaser_dc6371]

Great job ENGINEER 🤝

[@mathewsnyirenda4004]

Great works indeed. I do enjoy your videos.

[@electreca1]

Awesome, thank you!

[@realmechatronics4771]

Very helpful video brother.Thanks a lot

[@fundileani1007]

Very good 👍 Explaination

[@HoodNgwira-gi6kt]

I enjoy your explanation man!!you are great

[@electreca1]

I appreciate that!

[@Tulfonatic-sarcasticsm]

Great video, but more accurate if you use insulation meter than tester... more powerr

[@pjwendy1]

Insulation resistance test or integrity

[@kylecalling-df3in]

My guy! Is that your watch I hear running?!? Wow!! I think I can hear your watch running!

[@Engr.Duceysane]

Thanks bro from Somalia

[@rael5469]

Your watch is fantastic.

[@motionsick]

Great videos and nice watch!

[@Hewagej]

So helpful video

[@mohammedahmed-tc5bh]

your tech is simple and light understand me

[@scholesred1833]

Very informative thankyou sir very easy to understand

[@dawittesfaye1119]

thank you bro now i know how to fix my connection

[@vaingalauti5249]

Short and sweet toko ... nice video much is learned

[@dienteedavis7495]

I love this teaching

[@user-qr3xh2dr3g]

Wonderfully done

[@benjoemarperenia5436]

new subscriber here.. from philippines

[@electreca1]

Thanks for subbing!

[@lawoull.6581]

Awesome video brah.. we always learning.. * megger ⚡

[@alexdelgado9231]

Great explanation thank you sir!

[@electreca1]

You are welcome! and thanks for watching

[@alexsohaile6280]

It ist very useful to ,so Thank you

[@shareefbin-alli9319]

Great job 👍

[@manuelkay6053]

So clear..thank you

[@mensahadjei4072]

I like your teachings ,

[@electreca1]

Glad to hear that

[@ypaulbrown]

hoping to learn more and subscribing to your channel.....Cheers, Paul

[@devendrankannaiyan5158]

Thank you 👏👍🙏

[@pjwendy1]

But you’re doing great brother….

[@wilsonstrickland8967]

Dude, THANK YOU!

[@MinhHDang]

Great video!

[@night_grinder1378]

Very good good explanation

[@user-wc6zu6ph7t]

Thank You our blak star

[@jnolette1030]

That was nice and simple thx

[@ahubleydan2434]

good ! well explained .

[@k50159]

Thank you so much

[@user-jk9sb9tg1w]

good explanation bro

[@drugbatko]

thank you man

[@nsengiyumvaemmanuelpetit8410]

Wonderful ma bro

[@vmercado5290]

Hello Engineer, can you do insulation test for inductiom motor? And i want to know if it's okay to conduct a continuity test when the motor is switch on? Or it should be switched off? Thank you for this video. A great help for us future Engineer

[@electreca1]

The motor should be completely disconnect from supply.
Remember when carrying out insulation resistance the Mega ohm meter has 500DC volt that it apply to the winding.

[@maintenanceengineeringinsider]

ruclips.net/video/MkXq06GAF7w/видео.html

[@osavimbiosizwe]

Remember that any time a multimeter is used for continuity testing the device being tested must be deenergized. To test a motor for continuity, first isolate, or disconnect, it from the circuit. Then use the multimeter to check the resistance between phases....thank you

[@eliaskihanda7268]

Keep it up bro nicely

[@eugenemiranda9692]

Brother for resistance to ground checking please use proper electrical testing devices not an ordinary multimeter or clamp meter,use a calibrated multimeter with mega ohms insulation resistance test

[@anthonyeverett1253]

What a idiot whoever wrote this the man says he knows there are other ways to test but not everyone has or can afford the correct equipment to check so thank God there are guys like this that have enough sense to teach us how to use what we have...if everyone was as stupid as you are we would all be sol on diy projects

[@zukisanimethu9766]

fluke

[@rscelectrical7091]

We all use a multimeter or clamp meter for basic testing, but Megger testing is always the best way to test especially on motors and will show up faults with the higher voltage that a multimeter or clamp meter on resistance can't . By the way: I'm an Electrical engineer with over 4 decades of Commercial and Industrial experience & I do know what I'm doing, yes I use both analogue and digital multimeters regularly but never go on site to do fault finding without a Megger.

[@lawoull.6581]

Usually I go in there and 👁‍🗨 l 👁‍🗨 eyeball it. Get a feel for it. And usually lick my fangahs together and vióla.. I have 7 decades of being an engineer sparky.. ty guys for in and output.. now watch out.. 🏃 ⚡

[@TlD-dg6ug]

@@D1Freezer clearly you aren't doing any real diagnostics. Megmeters exist for a reason.

[@ebrimabah3418]

Thank you

[@vicky_creation_editz6287]

Good explain

[@abderrahmanerad1364]

thanks brothers , i really appreaciate it

[@electreca1]

Thank you

[@ebenezerebenezer7251]

Great one bro

[@abdurrahmanbuschnafa2096]

Thanks a lot

[@yonelachristopher6689]

Thanks for the great video

[@RaymondBurton]

That was so helpful. Thank you

[@electreca1]

Your welcome and thanks for watching.

[@simonkigenii9564]

More videos please bro

[@user-qd4dy9hs5d]

Word up Ericsson!!

[@user-vi3nj1qc8w]

Good 👍

[@mangodishim1]

Thanks

[@wilsonjudy9515]

i really liked your video.....big up

[@electreca1]

Big thanks

[@matthewobrien2066]

Thank you for the help

[@doc-holiday]

nice i like this video so simple to understand

[@dienteedavis7495]

Thank you very much

[@ansaalam9663]

Nice bro

[@pakarilmu433]

👍

[@molemomashapa6725]

When you test windings and earth and find readings what could be the problem??

[@muhammedlahir7569]

Thank you brother

[@brunogina3329]

Thanks sir

[@opiyomoses5396]

Nice one

[@rubenbrunohuaracha1920]

Genial mi morenas entendí algo, cuando algo se explica bien no hay barrera de idioma

[@stuartsmith4307]

yeah thx ma man good show bro

[@diegocedeno8671]

Thank u

[@abuzafor9981]

Good job

[@snakhoprotus5211]

Please do a SINGLE PHASE MOTOR TEST

[@dienteedavis7495]

I'm Dientee Davis from Tuna Savannah

[@janetawuah2535]

So before you test the motor, you should make sure the motor is neither connected in star or delta

[@electreca1]

Correct

[@jamestregler1584]

Thanks 👍

[@badshahengineeringvlogs9718]

Very nice

[@tinoarmin380]

What the ohm value of the coil in the 10hp motor 3 phase?tq

[@tibenkanahafizu8926]

Please take me through single phase generator parts

[@Asantepaul80]

Nice explanation, but my question is how much resistance should a motor have to ground?

[@alexsotelo7176]

Your winding to ground should always read OL on your meter. Any other reading means your motor has shorted to ground

[@yaredmamo846]

​@@alexsotelo7176ሴ

[@Industrial0244-Controls]

Please a lessons on a selector volt meter switch and also selector ammeter switch I don’t understand the the RT N MORE on the switches please

[@electreca1]

ok ill plan it
thanks for watching

[@redcardinal3522]

Cool picture man

[@electreca1]

Thanks for watching

[@jeremybrown9611]

Dope vid bruh

[@electreca1]

Thanks for watching

[@mortenlund1418]

Thanks for sharing

[@electreca1]

Thanks for watching!

[@pincermovement72]

Did I work with you at the old cow yards Blenheim palace in 2005 , you was from Kenya and were an improver , my company was P&around Morson

[@agabaesco5924]

Thank you sir.

[@electreca1]

Most welcome

[@georgiojansen7758]

after your vid, i tested my 18.5kw motor
all good, would a megger test be needed

[@electreca1]

Apart from continuity and short circuit that the multimeter can measure at 100 per cent, It may be difficult for the meter to detect insulation that has just begun to wear out
Yes, Amegger would be needed for the insulation test.
Thanks for watching.