How to check a 3 phase motor system 

Professional and impressive use of theory. Great job!

very good testing, explaining in a simple way...

Great video man. 10 yrs maintenamce...excellent suggestions...thank u

Done hundreds, this is the cleanest place I've ever seen, where's the water and hazardous chemicals, thats where I learned.

Motor. Disconnect. Overload. Contactor. Fuses. Power. Check. Great video. Thanks for sharing this great information.

Very well explained. I have slow it down and rewatch because a lot is covered in this vid.

very good, correct PPE, this is the way it should be taught, very good

GREAT VIDEO!..YOU COVER BASICS AND GET TO THE POINT!!

Excellent video thank you!

Great information like the way you explain the topic

Very helpful. Thanks for this.

Good explanation thanks

Great video

Very good. Thanks

Good video!

thank you for that sharing sir.

Our first how to

to check the motor it's better to use isolation tester. more than 0,5 MegaOhm between ground and phases. You check the cable also.

Please *confirm and clarify* the following; Is it possible to connect 3-Phase twin motor control panel in series (*two Numbers*) - for the same/ only one pump set- motor ??

I start at the other end, most faults are not at the motor, most of the time there is a protection trip, phase supply fault, overload or over temp.

Thank you, really helpull info. xD

thanks

i prove exellent circuit

First test should be for voltage to ensure the circuit is actually de-energized. You should test your meter first on a known live circuit, then test on the de-energized circuit, then check on the known live circuit again to ensure your meter is actually working and not falsely indicating 0 voltage. Make sure your meter is properly rated for the Hazard category. usually 480vac 3phase motor circuits are considered CAT III. Minimum your meter should be rated for CAT IV 600V or CAT III 1000V even better. It should be certified by at least 2 independent labs like UL CSA TUV DVE for this CAT rating. Your test leads should have been inspected for any damage before use and your probe tips should have the least amount of metal exposed as possible. Ideally you clamp the COM lead to a ground away from the terminals to be tested first. and then use 1 hand to probe each terminal for voltage 1 at a time. This creates a greater distance between the two leads and lowers risk of accidental arc flash forming between the probe tips. After you are sure the circuit is de-energized then you can check phase to phase ohms on the motor windings and T leads.

Your written list is 404 error for the url.

Watch this video more than once a grasp what he is saying also watch other videos on motor Controls and how to use a meter along with the danger of 3 phase 480/ 600 volts potential ...period

why not check amperage???

If you motor starts with the N.O start button and stops correctly, the control circuit is working properly and you can eliminate most of the steps shown in 30 seconds or less, then just check the power circuit and go from there. If your motor isn’t wanting to start, try manually picking it up with the seal in contact, If it starts, check start and stop button.

interesting content keep it up! #HuertsGamz Channel

Did I see a AB power flex 40 along with AB C09 DJ01?

Is the incoming control voltage 24VDC?

I have a question,how do you get a 3phase motor out of Lock Rotar Amp

I understand the incomeing control voltage but what is the incomeing line voltage?

Can some one explain what he means by incoming control voltage? Where is the incoming control voltage on the Contactor?

What are you meaning by "control voltage"? Are u meaning 24VDC from the power supply?

Why are you checking the motor at the disconnect? According to your print the normally open motor starter will be open. Kinda dumb

تمام صلى علي حبيبك محمد

Debiste seguir el tema que estaba hablando el dr nieves

Make submarcible motor

Very informative.

Hey, will checking the resistance between each phase of the motor not give the same resistance, as all of the windings are connected together in the motors terminal box?

You said “never throw a disconnect under load”. Sometimes you have to throw a disconnect under load if there’s an emergency.

i feel like inside the airplane

do 3 phase motors not need an earth? what about neutral?

That disconnect didn’t need a supply side bonding jumper, since the enclosure didn’t seem to have eccentric knock outs

To check the motor shouldn't you determinate the motor or at least check the termination? I've had instances where the motor shoots good from the cabinet but you open the peckerhead and the phases are melted together. Obviously it would cause the breaker to trip but still from the disconnect you would see the same reading if the phases were not shorted.

0:32 the truth

what is PPE ?pls explen it.

Your link to printable version doesn't work.

Most 3 phase systems in the us are 480v???? Hu?

No fuses & no transfer switch....

Your link to printable doesn't work.

Your written version and simple print link is bad.

Print link = 404

NEEDEED

In an absolute sense, this is a good effort, but this is not a good "how to" video: the narration is too fast, it assumes extensive knowledge and experience by the listener. This is for experienced people only, and if they are already experienced, they don't need the instruction. Improvement can start by practicing the narration with no slurred/drop-offs toward the end of the sentence or idea. (Slurred end-of-sentence drop-offs alienate the listener because it shows an attitude that says "this stuff is so basic and elementary, and I'm bored with having to explain it to you.... " The narration should also have pauses between sentences and paragraphs, as opposed to the aggressive, pace here, which eventually sounds like an advertisement for the company, as opposed to an actual how-to video.

Good vid. But you talk too fast 😕

video could have been much better. Couldn't fully see what you were doing

Talks way too fast wow

to fast video is terrible

Slow down. You talk too fast. I could not keep up

This is incorrect!! If your resistance phase to phase is low means you phase insolation is weaker and your about to phase out!