When we install a new electric motor for our application,we need to determine the voltage of power supply.Why it so important when we dealing with electric motor?
Ok..electric motor manufacture design their product can suit with several value of power supply around the world.It made the motor can used at any countries without worried about their power supply value.
The value of voltage for all country’s around the world have variant such as 200 VAC,220 VAC,415 VAC or 440 VAC for 3 phase.That why some motor manufacture design their motor can operated with 2 types of voltage.So it available for use to any country around the world.
How to determine motor terminal connection for suitable voltage?
This part is very important to ensure our electric motor installation is done perfectly and running properly.If we wrong setting for voltage value connection for induction motor,it can cause serious damage.
But dont worry,this time i explain detail how to determine a motor terminal connection for suitable with our power supply.The key is motor nameplate.We can found the motor connection and their suitable voltage value.For more detail,please refer a picture below :-
From this motor nameplate,we can see it have 2 connection and 2 voltage value.If our power supply voltage is 415 VAC for 3 phase,we need to setting the motor terminal in STAR connection.
It mean terminal cooper plate W2,U2 and V2 connect in one line.Here i attached picture about motor terminal in STAR position.
STAR CONNECTION TERMINAL MOTOR
If our power supply is 200 VAC 3 phase,we need to connected the cooper bar terminal in DELTA position.It mean, a connection are U1 with W2,V1 with U2 and W1 with U2.It just need to follow the diagram shown in motor nameplate.
DELTA CONNECTION TERMINAL MOTOR
If you want connect the induction motor with star delta starter,what you must to do is take out all cooper bar from motor terminal.It mean we not use a cooper bar.Because the star delta starter use a 6 cables for run the motor.
I hope from this post it can help all of u how to connect or perform termination job for induction motor.It is very important to ensure our motor running in good condition and avoid any damage.That why the nameplate of motor is very important…
sir i have one question is that, my induction motor is also 3 phase. requires 415v volt. 12 terminals are comming out form motor winding.and i want to connect it star-delta connection so out of that 12 terminals which should connect to power cable
Dear sachin deshmukh,thanks for the good question,i will discuss it in my next post…
Respected sir could u also tell me the Answer of this qustion m also confuseed regarding this .
thnks
Why I don’t see neutral terminals in some motors?
For 3 phase motor –> NO NEUTRAL
For 1 Phase motor –> YES Neutral
Dear first you make a pair of cables by continuity then arrange it on alternate way to make delta connection after that make connection of star.
sir which purpose we are use in star or delta connection.in a 3 phase induction motor.if we have 11kw 3phase motor in simple purpose motor .then which connection is better star or delta….
It depend on connection set by motor manufacture.Please refer to motor name plate to determine the connection for star or delta connection.refer to my last post about motor connection : http://www.electricneutron.com/electric-motor/dual-voltage-motor/
In vfd and star-delta stater bypass panel vfd only have 3 outgoing terminal and star-delta starter 6 terminals.how to connect terminal.
if you want used VFD to replaced star delta starter,first thing you must do is to determine motor connection either star or delta.Please refer motor nameplate for the connection.
As your known for star delta starter,no cooper bar install at motor terminal.that why it used 6 wire.For other starter used 3 wire with cooper bar at motor terminal
Example nameplate motor :
star connection : 415 VAC
delta connection : 240 VAC
Your power supply is 415 VAC
for more detail please refer my post : dual motor voltage
* You need to install terminal bar with star connection and connect 3 wire from output VFD to the motor with right phase.i already explain in this post..
Hi,
I am looking for an induction motor which has both ends of phase windings accessible, like the motor shown in this article. I want a motor with 1 hp power and 1700-1800 rated rpm. The motor will be used in vector control. Can someone please suggest some good motors (by Baldor, Leeson, Reliance etc.). I want to have the freedom of connecting the motor in star or delta configuration. A 12 terminal motor (with 2 windings per phase, connected in series or parallel for different voltages) will also serve the purpose. Please help.
hi
i have 3 phase indction motor for aerator with 6 terminal like u1-v1-w1,u2-v2-w2, and 6 wire coming from the panel board. RYB , how will i do connection of the motor plz tell me the right connection.
hi
what is the different between delta and star ?
i want explain about these.
Hi mohammad,please read my last post about star delta starter http://www.electricneutron.com/motor-control/star-delta-starter/
hello sir,star-delta connection is suitable for what kind of motor? by using considerations of KW and hp
Hi,Star delta starter suitable for AC Induction motor and HP around 5HP and above
Normally star delta starter used for Motor size from 5 HP and above
Hi
I have a problem. I will like to connect a three phase 12 leads motor from 440 volts to 230 volts connection, but, the motor leads numbering cannot be identified.
How could I know through the testing of the leads, organize the winding connections according to low voltage diagram.
Can I learn that course from you?
Hi ……… How can i know about phase secunce .and i also wants to know about 12 terminals motor connection
Please let me be informed of how to connect an induction motor(3ph)both in star and delta or stardelta.
Hi , I just want to asking how to connect Six cable wire to 3 phase motor ( position of each wire) and what will happen if wrong connection ? thanks
Dear Sir, is their any possibilities that we can connect a three phase induction motor running on 415 VAC to then run on 220 – 240VAC?
hie… my motor has 3 terminals how i came to know that the motor is connected in which configuration (star or delta)….
Hi, I have 3 phase generator 380 v, I want to use one phase as 220 volt for supply my home is it ok or will be unstable for the generator and might be damage, does it need some think to do
Kind regards
Why I don’t see neutral terminals in some motors?
I do consider all of the ideas you’ve introduced in your post. They’re very convincing and will definitely work. Nonetheless, the posts are too brief for newbies. May just you please extend them a little from next time? Thanks for the post.
QUOTE FOR MOTOR CONNECTION PLATES OF VARIOUS SIZES (MAKE:SIEMENS/ABB/SEW) – RFQ2498
Dear Team
Please quote your competitive prices for the below mentioned items:
S. No. Description of items Qty. UOM
1 MOTOR CONNECTION PLATE:- DIMENSION, LENGTH : 48 MM, WIDTH: 28 MM, MATERIAL: PORCELAIN, MAKE: SIEMENS/ABB/SEW 12 NOS
2 MOTOR CONNECTION PLATE:- DIMENSION, LENGTH : 56 MM, WIDTH: 36 MM, MATERIAL: PORCELAIN, MAKE: SIEMENS/ABB/SEW 12 NOS
3 MOTOR CONNECTION PLATE:- DIMENSION, LENGTH : 66 MM, WIDTH: 39 MM, MATERIAL: PORCELAIN, MAKE: SIEMENS/ABB/SEW 12 NOS
4 MOTOR CONNECTION PLATE:- DIMENSION, LENGTH : 70 MM, WIDTH: 40 MM, MATERIAL: PORCELAIN, MAKE: SIEMENS/ABB/SEW 12 NOS
Note: Relevant pictures are attached for ready reference
Please Also Provide Following Information:
1. Price ON CPT LAHORE AIR BASIS
2. HS CODE
3. MAKE AND ORIGIN
4. Delivery Period (Minimum Or Ex Stock)
5. Attach Complete Specification & Technical Information With Quotation
With best regards,
(MUHAMMAD ASLAM)
General Manager (Commercial)
STAR IMPEX INTERNATIONAL
EMAIL: aslam@starimpex.com
Suite#5, 3rd Floor Imtiaz Centre, Gulberg II,
Main Market, Lahore, 54660 – Pakistan
Phone:+92-42-35752291