Motor Definition and 1000 Threads

Hi everyone, I am currently trying to find out if it is possible to make such connection. Main supply power up Motor B, Motor B uses its mechanical load to run Dynamo B, Dynamo B generate electricity to power up Motor A. Is it possible for such connection? I have made such setup and I...

Hi all I have few questions in bldc motor simulation in maxwell 2d: - I need help in loss calculation,I exported a bldc motor in rmxprt to maxwell 2d after entering core properties and w/kg data in 50hz,in 2d checked stator and rotor in set core loss and checked (consider core loss effect on...

Aloha, I'm new here and stumbled across this site in my attempt to salvage a whirlpool washer motor to repurpose as a motor to grind barley to make my beer. Until now, I just used a hand crank and decided it's time to modernize. I just salvaged a nice looking, 3 speed, 1/2 hp motor from a...

I am a software engineering major, and I am having some trouble with an electric circuit in my satellite project. Basically I am trying to generate 1G on the inner surface of a cylinder with a radius of 0.03m, connected to an electric motor which has to rotate at about 173 rpm (to generate 1G...

I found a motor I think is from an old AC unit in the recycle. It is a 1/4 HP, 265V, 1.20A AC motor. I've been looking to make a low-torque sander and was thinking about using this as a a drive motor. I know the starter capacitor is there to provide an initial burst of current to get it up to...

Homework Statement Hi all I am doing a school physics project and I am trying to find the maximum angular velocity of a DC motor. I have built a circuit consisting of a charged capacitor (of known voltage) and a motor. I then try to predict the maximum angular velocity attained by the motor...

Hello, I am building a large DC motor for a Go-kart. I have a question: How would I know how much voltage and current (the maximum values I can use) I need to make the DC motor work and spin? I'm guessing the armature size and the winded wire's length depends on how much voltage and current...

Hello, I would like to start building a simple DC motor Go-kart, but I would like to build my own DC motor for it. A simple one that can make the car move. I know how DC motors work and I understand the physics of it, but I'm not sure about some things: - Are all DC motors (large or small) the...

Suppose a motor is run at 1500 rpm and field rheostat is at minimum position (say 10Ω). Then the field rheostat resistance is increased to 100Ω and the speed obtained is 1700 rpm. Now the motor is shut down and started again. Will it now run at 1700 rpm? My logic: No it won't, because: the...

I'd like to take several of these (or similar) usb device charging batteries (http://www.ianker.com/product/A1271011 ) and connect them into an array to create a minimum of 36V and channel that to power a speed controller for an electric vehicle. Is this possible? Would I be able to prototype...

I am learning basic motor control and there is a formula list in my book. The last one is for torque calculation, can anyone point out to me where this one is from or how is it derived?

Hello, I've recently came across this video (), where the authors use a motor to compress springs and therefore achieve locomotion. I've been thinking why is there a resulting downward net force. But i can't really figure it out. Thank you for time :) See the video from 1.16 minutes and...

What output does a 12v motor give. I need to power a heating element that requires 12v, can I do this with a 12v motor? If not what size motor do I need? Thank you in advance for any help Sarah

Hello! I was looking to find out about an equation that would tell you the maximum angular velocity an electric motor can put out in terms of the geometry of the motor (area of the rotating coil, number of turns, etc), the EMF applied to the coil, magnetic field surrounding the coil, and so on...

Does anyone of a transformer that can step up 120vac to 460vac? Or do I need to use two transformers and step it up twice? It is powering a 10hp 460vac 3phase ac motor. Thanks.

Hello! This isn't a homework question, and I don't think it is too homework-like, but if I'm mistaken I apologize. My question is if you had a battery, or some source of electrical energy, hooked up to a coil of wire in a constant magnetic field, in such a way that the wire spins around...

I'm looking into building a 7 1/4 gauge Diesel Electric Locomotive I will be using 4x 1hp (or 1 1/3hp) 24vDC permanent magnet motors for the traction motors. What I am looking for is someway of generating 24vDC with a 100-150A max output. (Im using a 3cyl 16hp Diesel engine to drive a...

I'm not well versed in electrical engineering, but I was looking at this. http://www.precisionmicrodrives.com/vibrating-vibrator-vibration-motors/pager-motors-erm-motors It suits my needs for a project, but I need to modify some aspects of it. In layman's terms, can someone explain to me how I...

I am new to flux oriented control and i read that this method is to decouple the stator current, one component for flux producing and other for torque,so that so that we can control these two current components to control an AC motor like a DC one(right?) However when i try to dig into detail...

I am creating a scale model wind turbine using a DC motor as a generator and would like to predict the motor response analytically. Generally speaking, the flow will spin the rotor (as in the turbine's), which will spin the motor, and then there will be what I'm calling the motor response, and...

Capacitor-start induction motors use a capacitor in series with the start winding to create torque to start the motor. After the motor gets nearly up to full speed, a switch takes the capacitor out of the circuit. I understand the torque is caused by the phase shift created by having the...

It is observed that the stator current of IM increases on loading. In transformers, the increase in primary current due to loading is significant . Is it same in induction motor? Does the air gap affect it?

I am using an 1/8 HP motor with an SCR type dc drive and 1/4hp AC single phase control relays. I keep having a problem with welded relay contacts. Should I go to 1H/P relays? I don't know why I would have to being the HP of the motor is lower that the relay?

Hello guys, I have been trying to calculate the maximum torque that can be applied to my driveline through regenerative braking, using the equations from this paper: https://smartech.gatech.edu/bitstream/handle/1853/47660/sambamurthy_aravind_201305_mast.pdf?sequence=1 I have been using the...

Hi everybody, I've been trying to find instructions on how to build an electric washing machine but am not having any luck! I found non-electric manual operated makeshift washers, but I need something with a little more oomph! The closest thing I've found is someone made a power saw from a...

We are designing an electric tricycle having rear wheel drive(26 inches wheel dia).It will weigh around 400kgs including drivers. There are constraints for motor output power(max 400 watts) and voltage(max 48v). What are the calculations to be done for the selection of motor. The desired speed...

I'm making an electric scooter but it's not just your average scooter. I'm going to connect it to some solar panels so it can run off of solar energy. But since this is my first time experimenting with electrical engineering stuff, I have no idea which motor I should use. I'm thinking a 12 volt...

I have a 24V, 1500rpm bldc motor.The power output will be around 400W. We are using it to electrically drive a tricycle. How can I calculate the gear ratio to decrease the rpm and increase the torque? The transmission system includes an intermediate shaft with 22 teeth sprocket and 44 teeth...

is there anyone who knows a company that can design single phase induction motor prototypes in the UK..Thanks for your help

Homework Statement I came across these two equations in a chapter on induction motors, and I was wondering if they both calculate the same thing? ##w_r=sw_s## ##w_r=w_s - \frac{p}{2}w## Homework Equations The Attempt at a Solution s is the slip, ##w_r## and ##w_s## are the rotor and...

Good morning, I have little problem here and I've come here with hopes of a solution! I'm currently messing with a rotary to linear pressure cycling system. The size of the air cylinder has already been decided and I'm simply trying to design around it. Here are the specifics! I've added a...

Hello, If I take a DC motor and put it in generator mode, what will happen if I connect a resistance at the wire ending of the DC motor? Will the motor turn slower compared to when the electric wire of the motor is connected to nothing? What effect will the resistance have on the current...

Hi i want to choose a motor for a project i am working on and i have a structure weighing approx 2kg which is to be run at 1000 RPM. So my question is what should be specifications of the motor i am to buy ,more specificly the torque required to run the structure and the power rating? i was...

Hello, I have got a three phase motor connected in delta that is controlled in six step commutation. When I measure the line current of one of the phase under oscilloscope, I got something like this : Can anyone tell me why the amplitude of the current isn't 3.1A and -3.1A? What I got here...

Hello, I am trying to build a motor. Just a prototype I guess and learning at the moment so just simple stuff but I can't make it work.. I have seen the examples of a homopolar motor and understand the direction of force due to Lorentz force. To be simple I don't want, and don't see the need...

After bearing failure of 24V, 15A dc motor. We change the bearing of the dc motor. But after changing it the motor is running forward/ reverse but there is no control over the speed. Where is the problem? Is that in the techo or drive card? Any body please help. Helping in highly appreciated...

What is the effect of motor winding end turns on torque for small DC brushless motors.? Many state that end turns have no effect on torque and that the only influence is from the winding portion in the stator slots. My belief is that because the end turns on small brushless motors are still...

Hello all my friends...! This is my first discusion about this type of discusion , so let make long short story i read people from 2009 want to find way how to use wind in car producion or self use... I was thinking let me try to find way to get solution on that problem so after long thinking ...

Hi, I have a motor with no information, not even a label, just the connectors, I was wondering if there was a way to measure its power and if there was a way to control it without affecting it's velocity, I possesses simple elements, some sensors (inductive) and a manometer, my brain is now dry...

Neglecting drag, I'm trying to understand how a wheel driven by a motor on a level surface rolls without sliding and experiences constant velocity. I'm trying to construct a free-body diagram. The wheel has a weight and a normal force acting on it in the vertical directions. The sum of...

Hello, I have a three phase BLDC motor and I am trying to figure out its phase resistance. I have acquired the three-phase voltages and three-phase line currents of this motor. The voltage is in trapezoidal form whereas the current is in rectangular form My question is: how can I find out the...

Dear expert, dear all. As my knowledge, the single phase motor is not a seft-starting motor. i suppose that there is only main winding in single phase motor. as you know, the rotor can not start because of the 2 opposites force cause by 2 oppositely rotating magnetic fields. the question is...

in traction applications which motor is best suitable? previoulsy dc series motors were used in traction applications due to there excellent starting torque.but now a days it is being replaced by induction motors.why can't we employ synchronous machine in traction application?

hello, I need to rotate a circular aluminium disc with a Battrey powred DC motor. I am having problem in finding the right kind of motor. The total mass of the disc is 6 kg, radius of 30 cm and have to be rotated both horizontally and vertically. I need to rotate it at 1600 rpm. So what would be...

Homework Statement Homework EquationsThe Attempt at a Solution For the textbook diagram of a separately excited dc motor, the voltage equation for the armature circuit is given as ##V_t=E_a + I_aR_a## But in the class notes, it says ##V_t = V_a## Firstly, I don't know if the ##V_a## refers to...

Homework Statement A machine, with an armature resistance of 0.16 ohms and K##\phi## is to drive a load that requires a torque that is proportional to its speed. One point on the mechanical torque-speed relation is 16 Nm at 400 r/min. If the armature terminal voltage is 50 V, at what...

I want to known the stator design of an indiction motor. How may turns required for each pole. For exmple if a single phase motors is designed to run at 230v ac, how may turns required in each pole. If the same motor is designed to be run in lower voltage (say 110v ac or 12v ac) what will be the...

Hi everyone... I have to design a single phase induction motor. I have some questions and it would be great if you could help me. The parameters I have for the design of the motor are: rated power, rated voltage, frequency, rated speed, power factor, efficiency, full load current and full load...

I'm sure that this has been posted before but... I want to substitute a gas motor in my 12kw Generac home backup generator with an electric motor 48-volt 4hp@4000 rpm series.. I would run this electric motor from the grid and power my home from this newly design generator.

Hi there, I've been looking through the web for hours but I cannot find a DC drive that can do everything I have in mind. After a few hours and being thoroughly confused. I was wondering if someone on this forum would be of any help. I'm trying to buy a 0.5 HP Permanent magnet DC motor to...