Query ROTATION of 3 phase motor
Is there a specific direction of rotation for a 3 phase motor. Or can we allow the 3 phase motor to run in any direction.
Replies
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ashuashiThe direction of rotation of 3 phase motor depends on its use i.e. the purpose - coupled with a pump, etc.
The direction will be different if seen from driving end or the driven end. Usually it is counter-clock wise if seen from the driven end.
regards, -
avmWhat i have asked is whether we can give connections to a three phase motor in the RYB Or RBY. (The direction of rotation for both the connection will be opposite.)
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ashuashiThe connections should be RYB if they are coming from mains as RYB. Because some times RYB come as RBY. So just check the direction once with RYB. If the rotation is as per requirement no issues. If not just change two phases & you are done.
Hope its fine now. -
sauravgoswami@avm: well try it,watever ashish said is right but i wonder were the force will be thrusted if you rotate it in reverse direction,i will appreciate if you can share your results with us
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laxman7mplease suggest a good book for electric machines
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Pluto
In the U.K 3-phase rotors for the purpose of generation should be initiated to run clockwise (I.E.E 14th ed. onwards). As previously suggested, 2-phases can be altered post-commissioning however best practice (or rather international standardization) should be maintained on new installations.avmIs there a specific direction of rotation for a 3 phase motor. Or can we allow the 3 phase motor to run in any direction.
Hope this helps
#-Link-Snipped-# -
ashuashi
Did your problem solve?avmWhat i have asked is whether we can give connections to a three phase motor in the RYB Or RBY. (The direction of rotation for both the connection will be opposite.) -
aj_ondutySuppose we connect BYR to the terminals instead of RYB, wont the motor rotate in the reverse direction compared to when it will be connected as RYB?
Its just my curiosity. Please let me know what will happen if something like this is done. Thanks in advance. -
d_vipulif you connect motor with RYB then the motor will start to run in clockwise direction.........................and if you reverse this connection Like RBY or YRB or of any kind........it will start to run in reverse direction........
hey who gave u degree yaar?????................dnt u know such ans to this question?????? -
Kaustubh Katdare
How about not using unnecessary Hindi words in an International forum?d_vipulhey who gave u degree yaar?????................dnt u know such ans to this question?????? -
d_vipulokkkkkkkk................i will not use hindi words on this forum..................Sorry bro.............me new here.............sorry for that................is this ok?????...............or shoul I ban myself for this as a punishment.......
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Kaustubh Katdare
You can't ban yourself, our mods will do it if you continue to break forum rules -d_vipulokkkkkkkk................i will not use hindi words on this forum..................Sorry bro.............me new here.............sorry for that................is this ok?????...............or shoul I ban myself for this as a punishment.......
1. Forum language is strictly English.
2. Use proper text formatting.
3. Not use SMS text. -
aj_ondutyIts true that the questions here may appear silly. But it never means that the one who asks them is not fit to have a degree. The question may be asked not to know the basics, but the explanation of the basics. Not any degree holder knows everything in his discipline. Kindly do not hurt anyone.
Thank you
P.S.-Kindly learn to respect the authorities
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