Question about Baldor 1/2 Hp Motor M3538 1725 Rpm 5/8" Shaft 230 V

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How To Interpret Or Read Nameplate On 3 Phase Motor?

Have a burnt 3 phase motor that nameplate is RPM 3450 230/460V PH 3 AC Motor And want to replace it into RPM 2800/3500 200-230/380-415v ph 3 Multistage Turbo Blower I wander what rpm would be of the to be replaced motor that sticker marking is 380v 50Hz if i connect it into 220v or 230v? What would be the advantage or disadvantage of using a motor that 380 volt connected into 220v or 230v. I tried to connect it at 230volt and it runs good. Thanks in advance.

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The higher the voltage the lower the amperage, so advantage is its more cost effective to run it at highe voltages since power consumption is I squared x Resistance. The resistance will be the same but the lower the current the less it cost to run it.

Posted on Aug 25, 2014

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Posted on Jan 02, 2017

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SOURCE: How To Convert Y Connection 3 Phase Motor Which Burnt Into A Delta Connection?

Delta is entirely different connection.... look here:

https://www.google.co.uk/search?q=3+Phase+Motor&es_sm=122&tbm=isch&tbo=u&source=univ&sa=X&ei=TWKZU9jpJobSOe3lgdAD&ved=0CEMQsAQ&biw=1534&bih=846

Posted on Jun 12, 2014

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How do you reverse a single phase 5 HP motor?


How do you reverse a single phase 5 HP motor check it on YouTube will give you the answer

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I just had my electric motor rewound. At first I had 3 wires coming out of it now I have 9 that are number coded. I need to know which wires I need to hook up. The man at the motor shop said don't use


Apparently you have a three phase dual voltage motor. The wiring should be on the nameplate or in the junction box. You will need to know what voltage you have. There are standard wiring diagrams for three phase motors. If he rewound the motor he should have given you a diagram or there should already be one there. If he doesn't help ask for your money back.

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Pump wiring diagram


I am sorry, but if you don't know enough to know how to wire a 3 phase pump, maybe you shouldn't. You MUST use a starter of the correct size. The pump should either have a wiring diagram on it near the nameplate or inside the wiring cover at the rear of the pump. You really should have an electrician do this as the specific wiring depends on the motor brand that is on the pump. I have installed 3 Pentair pumps, all the same "item #, and they all were wired a little differently.

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How To Convert Y Connection 3 Phase Motor Which Burnt Into A Delta Connection?


Delta is entirely different connection.... look here:

https://www.google.co.uk/search?q=3+Phase+Motor&es_sm=122&tbm=isch&tbo=u&source=univ&sa=X&ei=TWKZU9jpJobSOe3lgdAD&ved=0CEMQsAQ&biw=1534&bih=846

Jun 12, 2014 | Baldor RM3120 HVAC Fan and Blower Motor,...

1 Answer

2 speed switch wiring dieagram


The motor will have wiring diagram and voltage on nameplate.
You can re-post question with information that shows on nameplate for more exact information, or keep reading below:
If motor is rated for 240Volts, then it will not work with 120V.
If motor is rated for both 120V and 240V, then either Low voltage or high voltage will work, and one wire will be common, and 1 wire will for 120 and other wire for 240.
If motor is rated 120Volt two speed, then one wire will be neutral, and 1 wire low speed, and other wire high speed. You can connect your wire to either low of high, and cap other wire.
If motor is 240volt two speed, then one wire will be common, and 1 wire low speed, and other wire high speed.
If motor is rated 3-phase, then all three wires are connected to the voltage shown on nameplate.
If motor is rated 3-phase two speed, you may need electrician to wire the motor correctly.
http://waterheatertimer.org/pdf/AO-Smith-motor-wiring.pdf

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Jun 08, 2012 | Westinghouse Electric Westinghouse...

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LP126HD3A rated for 265 volts AC single phase I have 240V ac single phase, how can I use this unit on 240V ac


You'd need to supply a "Buck-Boost" transformer to do this properly. Technically, the 265 VAC is one hot leg and neutral of a 480 VAC 3 Phase Y system that measures 277 VAC. The 265 number comes from this:

265 is the standard nameplate voltage for a 277 volt motor or AC unit.

230 is standard name plate for 240.
200 is standard name plate for 208
460 is standard name plate for 480.
110 is standard name plate for 120.

Most electricians call the hot leg / neutral circuit "277V AC".

Some popular "Buck-Boost" transformers will convert 208 to 240 and 240 to 208 volt systems, and 240 to 277 and 277 to 240 volt systems - among many other variations. These are auto-transformers as the primary secondary windings share a connection. KVA ratings differ significantly from name plate because of this fact. You should contact a qualified electrician to not only size, but wire the transformer for you. Failure to install a Buck-Boost transformer - and running this unit on 240V AC mains will cause premature failure of motors - fans and compressor due to overheating. This can also result in a fire hazard.

I hope this helps and good luck!

Sep 06, 2011 | LG LP126HD3A Air Conditioner

1 Answer

I want to take to my home but I only have single phase 220, what can I do.


Hi,
You can build or buy a single to three phase converter....

http://www.metalwebnews.com/howto/ph-conv/ph-conv.html

If you want to buy then just do a search and many will come up...

You size them by amp. draw... the amp. draw will be listed on the motor nameplate...

heatman101

Feb 04, 2011 | Ingersoll Rand - Rand Type - 30...

1 Answer

I have a new A O Smith B861 motor I want to


Thank you for posting your question here on Fixya.com.


I am not sure what you mean by "center wire". For 230V single phase you should have 2 hot line leads (115V each) and a ground wire. Set the motor leads as the nameplate shows for the high voltage connection and attach your line leads where the two lines are indicated. If you have a 3+Grd wire drop DO NOT connect the neutral, insulate it and leave it unconnected. It will not matter which line lead connects to which motor line wire as far as rotation direction. To change rotation, if the motor allows it, you reverse the start winding leads as directed on your nameplate.

If this answer does not fix your problem, please comment with additional details prior to rating the answer. Positive feedback is appreciated once your problem is solved!


John

Sep 17, 2010 | AO Smith A O Smith Motors A O Smith 2hp...

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