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Q&A

Posts tagged motor

Synonyms: motors electrical-motor electrical-motors

4 child tags

Anything related to electric motors of any kind.

An electric motor is an electrical device that converts electrical energy into mechanical energy.

Its operation is based on the magnetic coupling between the outer, fixed part of the motor (the stator) and the internal coaxial part (the rotor), which can spin around its axis due to the magnetic forces that are generated when the motor is powered. The rotor is connected to an axle that can deliver the mechanical energy so produced to a mechanical load.

This tag doesn't have a detailed wiki yet.

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Q&A Can I make an AC inductor (reactor) rated 75mH 40A from a 3-phase induction motor?

For my test bench I need an inductor (aka "reactor") that meets the requirements below. I have tried to purchase it outright as a made-up item, or the parts to make it (core and windings), but have...

2 answers  ·  posted 5mo ago by Fabio Barone‭  ·  last activity 4mo ago by TonyStewart‭

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Q&A H-Bridge components and calculations

My goal is to make an RC car, and I have a couple of questions regarding driving the brushed DC motor. Schematic for half of my H-bridge looks like this for now (it will be identical on the other s...

1 answer  ·  posted 2y ago by Stefan‭  ·  edited 8mo ago by Lorenzo Donati‭

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Q&A Designing a circuit to verify thevenin theorem with induction motor as load [closed]

Design a suitable experiment and an AC circuit to verify Thevenin's theorem when the load is a single-phase induction motor with a capacitive start and two supplies feed the load. Ratings of load:...

0 answers  ·  posted 1y ago by dkumar94600‭  ·  edited 8mo ago by Lorenzo Donati‭

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Q&A Max V/Hz value for motor

I want to run a specific motor in the open loop. How to calculate the maximum ratio of V/f to run it? Am I looking at Ld or Lq value for this? Let's say these are the characteristics - haven't ch...

2 answers  ·  posted 3y ago by 2kind‭  ·  edited 8mo ago by Lorenzo Donati‭

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Q&A Estimating the input capacitance of an BLDC motor controller

Problem Description I am trying to design a BLDC inverter and I am in doubt of what would be the right approach for estimating the input capacitor size/type. Doing it empirically or throwing every...

2 answers  ·  posted 3y ago by 2kind‭  ·  edited 8mo ago by Lorenzo Donati‭

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Q&A Limiting current to DC brushed motor

This question is related to my previous question. I want to drive a brushed DC motor using H-bridge. To power the motor two 18650 cells will be used in series. The issue is that I want to limit th...

1 answer  ·  posted 2y ago by Stefan‭  ·  edited 8mo ago by Lorenzo Donati‭

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Q&A Understanding induction motors

I have been watching this video and at 3:28 it says that a induction is inherently self-starting.Does this happen because of the energy stored and released in the windings of the statorFrom 3:41 u...

0 answers  ·  posted 10mo ago by Volpina‭

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Q&A How is it possible to perform a open circuit test on a induction motor?

During the open circuit test of a induction motor ,not any current flows inside the rotor.But how can we achieve such a thing? Here is the ping configuration of a induction motor: The coils of ...

3 answers  ·  posted 11mo ago by Volpina‭  ·  last activity 10mo ago by rdtsc‭

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Q&A Calculate values of externally excited DC generator/motor

We use a DC externally excited generator/motor as a generator.We excite the input of the generator and get at the output 10V at 1Wb flux and at 5rps generator speed without connecting the generator...

1 answer  ·  posted 11mo ago by Volpina‭  ·  last activity 11mo ago by Olin Lathrop‭

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Q&A Driving PMSM machine as an AC induction machine

Is it possible to drive a PMSM motor - here I am referring to an AC motor with permanent magnets(stator wounded, rotor with PM) - in a way that there is no externally mounted rotor position sensor(...

1 answer  ·  posted 2y ago by 2kind‭  ·  last activity 2y ago by Olin Lathrop‭

Question motor PMSM VFD
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Q&A BLDC motor - initial rotor position

Sensorless BLDC motor controller are becoming more and more popular, especially with rising of the drone industry. Being able to detect where the rotor is at 0rpm or no load seems intuitive if we ...

2 answers  ·  posted 3y ago by 2kind‭  ·  last activity 3y ago by KalleMP‭

Question motor control PMSM