Thanks One of the most important issues in the field of refrigeration is to be able to detect the status of a compressor And thus also determine what the rules are for the terminals in a conventional system, thanks for the contribution, today's lesson is very good
I'm still relatively new in the trade but I have applied myself to learn everything I can every single day. My field is residential, but one day I hope to transition into the commercial side and maybe the refrigeration side😌🤓🤔🤔
Thanks for the concise information. I assume those are AC motors. How does a DC motor differ? Is it just that the electromagnetic fields are generated on the armature instead of the stator? I'm over my head. Trying to utilize a MFR-J55WZ0BP-0114 to upgrade my drill press for low RPM high torque drilling of metal. I can't find much info that motor. It doesn't seem to have brushes, indicates 3 phases with an insulation rating of F. Yes, I did rip it out of a treadmill. :) Which came with some type of Emerson driver.
The bottom line is to know what your Source Voltage is. The quickest way to find that out is to look at the Disconnect Switch that should be installed nearby. If not a (DS), then there should be a Circuit Breaker in a Panel. A single pole and two pole breakers are considered Single Phase. And of course, a three pole breaker would obviously be 3-Phase. In terms of Single Phase vs. Three Phase.......3-Phase offers 173% more power. Kind of like the difference between a 4 Cylinder Engine and a V8 Engine.
I like the way when he says "ninety degrees" and the text corrects to "*120°"... tbh, since the video is so often cut, a correction take wouldn't have been too much instead of patching the correct phase shift value text in there...
I bought a couple of exhaust fans online that I wanted to use in my house, when they arrived they turned out to have 3-phase motors. How can I hook these to my 110V power in the house? Do I need a single to 3-phase converter? Thank you!
I always try to think of 3 phase power and motor as a 3 cylinder engine...firing at every 120 deg of rotation. (if that helps any) 3 phase power has 73% more power than its 1 phase counterpart. The one that always throws me off is a 120 volt motor with neutral and a 240 volt motor with 2 hot legs are both considered single phase?? Shouldn't the 240 volt motor be 2 phase?? ...and the 120 volt w/ neutral be single phase??..LOL just sayin...GR8 job on all of your vids that I have watched so far...you have great information for sure..A+
Strictly speaking, DC cannot have different phases in the first place. DC is just on or off. The entire concept of a "phase" only truly applies to AC power. It is the definition of AC vs DC power, really. The confusion comes from how people talk about variable speed motors. Even manufacturer literature. Carrier's modulating heat pump, for example. On one page it says the compressor gets "300v 3 phase power", with no mention of AC or DC, leaving you to assume AC because only AC truly has phases. But 2 pages later it says the compressor receives a 300v*DC* input. So is the compressor AC or DC? Well, both. It takes a DC signal thats mimicking an AC signal using something called "Pulse Width Modulation". It basically delivers short bursts of power (1/1500th of a second each) in a way that results in an oscillating voltage that approximately resembles an AC sine wave. So even though a "3 phase DC" motor does *technically* take a DC input, it's a DC input that is made to approximate an AC input. So for most purposes, it can be treated exactly like a 3 phase *AC* motor. Essentially, 3 phase DC motors *do not exist.* Because DC doesn't have phases in the first place. All "3 phase DC" motors only work because the DC signal is made to look like an AC signal. That's the only reason the term "DC phases" makes sense in the first place; if the DC is essentially turned into AC through PWM.
And that is because the producer did a very poor job at explaining it and why it is so fundamentally important. Probably doesn't understand it properly himself.
Thanks
One of the most important issues in the field of refrigeration is to be able to detect the status of a compressor And thus also determine what the rules are for the terminals in a conventional system, thanks for the contribution, today's lesson is very good
Very good video. Got right into it without all the fluff. This is what I was looking for. Thank You
I'm still relatively new in the trade but I have applied myself to learn everything I can every single day. My field is residential, but one day I hope to transition into the commercial side and maybe the refrigeration side😌🤓🤔🤔
this is good info, but i really wish you'd at least leave the autogenerated captions on, my dude. some of us have auditory processing issues out here.
Thanks for the concise information. I assume those are AC motors. How does a DC motor differ? Is it just that the electromagnetic fields are generated on the armature instead of the stator? I'm over my head. Trying to utilize a MFR-J55WZ0BP-0114 to upgrade my drill press for low RPM high torque drilling of metal. I can't find much info that motor. It doesn't seem to have brushes, indicates 3 phases with an insulation rating of F. Yes, I did rip it out of a treadmill. :) Which came with some type of Emerson driver.
The bottom line is to know what your Source Voltage is. The quickest way to find that out is to look at the Disconnect Switch that should be installed nearby. If not a (DS), then there should be a Circuit Breaker in a Panel. A single pole and two pole breakers are considered Single Phase. And of course, a three pole breaker would obviously be 3-Phase.
In terms of Single Phase vs. Three Phase.......3-Phase offers 173% more power. Kind of like the difference between a 4 Cylinder Engine and a V8 Engine.
@HVACS are there any draw back from using a Single to three-phase converter Nx where there is no 3 phase available so long as it can match the kW?
hello from america
Thanks for the great information !
I like the way when he says "ninety degrees" and the text corrects to "*120°"...
tbh, since the video is so often cut, a correction take wouldn't have been too much instead of patching the correct phase shift value text in there...
Yeah I was thinking would'nt that be 4 phase???
Can you use a single phase motor in a 3 phase system?
I bought a couple of exhaust fans online that I wanted to use in my house, when they arrived they turned out to have 3-phase motors. How can I hook these to my 110V power in the house? Do I need a single to 3-phase converter? Thank you!
Yes
I always try to think of 3 phase power and motor as a 3 cylinder engine...firing at every 120 deg of rotation. (if that helps any) 3 phase power has 73% more power than its 1 phase counterpart. The one that always throws me off is a 120 volt motor with neutral and a 240 volt motor with 2 hot legs are both considered single phase?? Shouldn't the 240 volt motor be 2 phase?? ...and the 120 volt w/ neutral be single phase??..LOL just sayin...GR8 job on all of your vids that I have watched so far...you have great information for sure..A+
He kept saying 90° in the video when it should be 120°
but wich is better?? single phase or 3 phase??? any advise , im about to assemble a peanut grinder what machine phase is the right for it???
thank you ... can you talk about 3 phase in dc motors
Strictly speaking, DC cannot have different phases in the first place. DC is just on or off. The entire concept of a "phase" only truly applies to AC power. It is the definition of AC vs DC power, really.
The confusion comes from how people talk about variable speed motors. Even manufacturer literature. Carrier's modulating heat pump, for example. On one page it says the compressor gets "300v 3 phase power", with no mention of AC or DC, leaving you to assume AC because only AC truly has phases. But 2 pages later it says the compressor receives a 300v*DC* input.
So is the compressor AC or DC? Well, both. It takes a DC signal thats mimicking an AC signal using something called "Pulse Width Modulation". It basically delivers short bursts of power (1/1500th of a second each) in a way that results in an oscillating voltage that approximately resembles an AC sine wave.
So even though a "3 phase DC" motor does *technically* take a DC input, it's a DC input that is made to approximate an AC input. So for most purposes, it can be treated exactly like a 3 phase *AC* motor.
Essentially, 3 phase DC motors *do not exist.* Because DC doesn't have phases in the first place. All "3 phase DC" motors only work because the DC signal is made to look like an AC signal. That's the only reason the term "DC phases" makes sense in the first place; if the DC is essentially turned into AC through PWM.
Sir single phase 1 hp motor and three phase 1 hp motor jiyda current kon lega aur kyu jiyda current lega
120 degrees out of phase not 90.. just saying.
Yes I don’t know why I was saying 90° / that’s why we added the on screen edits
@@HVACS Eating Turkey will do that to ya !!! 😂😁😂😁
Thank you for reminding us you’re not perfect! I get watching your videos and I feel bad about my own knowledge! Lol.
@@HVACS A half-assed job of correcting mistakes is always the best.
Excellent!
Any favorite phase rotation testers?
FIELDPIECE
Sc680
May you activate captions in this video?
Please
I thought three phase was one leg 120 V second leg 208 V the third leg 120 V
When this video came up and I seen and heard this guy I thought i had switched to a Radio DJ station. Some people go too far with youtube videos.
Would you call the 3 winding, 3 run windings technically?
🤔
thank god for playback speed
like it
Ф is the letter "F" in russian
i need subtitle T.T
ur mic compression makes you sound like in da face.
thought the same thing
Ora ngerti ngomong apa kuwe
Still don’t know what 3 phase is
And that is because the producer did a very poor job at explaining it and why it is so fundamentally important. Probably doesn't understand it properly himself.
way too! fast!!! hated! it