All Questions
Tagged with electrical-engineering motors
133
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So I am building this mechanism and I need to bring the rotation down without changing speed or direction
Just like the Title said I need to move rotation down without changing speed or direction. I can’t use belts because since I will be using a motor, when it stops the belts won’t.
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Can i use a metal gear servo motor to lift a 4kg load and then attach it to an actuator?
I am doing a project if which i am trying to resemble some muscle movements of an arm and i want to attach an actuator to a motor. But i don't know if a metal gear servo motor can lift that much load. ...
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How to calculate the torque disturbance of an unbalanced flywheel?
I would like to understand how an unbalance of a flywheel affects the dynamics of a simplified mechanical model.
Assuming that the mechaincal dynamics can be modeled as (neclecting inertia of the ...
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Using Relay and contactless water level sensor to switch on or off motor pump
I have no prior experience related to electrical projects and I am having confusion about which type of relay and how to connect relay, contactless water level sensor and motor pump.
So basically I ...
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Machine with Multiple Motors and Fusing?
We have some old machines that I'd like to overhaul the electrical on. They are wired like in the schematic I provided. L1, L2, L3 come from a fused disconnect on the machine with a set of 30A fuses. ...
user45340
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What are the issues with using a general purpose motor on a variable frequency drive?
What happens in this scenario - a modern electrical motor, three phase, squirrel cage, that is not specifically designed for operation via frequency inverter, is in fact operated on an FI? How long ...
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Pressure Boosting Pump Running Overcurrent
I'm working on an industrial water re-circulating system that is having an overcurrent issue that is baffling everyone involved (design engineer/plumber/electrician/pump and motor Mfg).
The system ...
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1
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111
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What are the protrusions on the side of some electric motors?
The question is straight forward. What are the protrusions attached to the main cylinder of this electric motor?
This one has two protrusions that are the same size. Others, like the motor for my ...
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Examples of uses of different voltages as seen on motor nameplate
The electric motor nameplate (pictured) has a variety of different voltage configurations which are listed. I understand that the motor can be configured to run on different voltages by changing the ...
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How do I wire up this Single Phase AC Motor? (Wye Arrangement)
The no-volt-release switch stopped latching on my single-phase planer thicknesser. The motor is under 1.1kw (1.5hp) and I understood that I would be able to drop in a generic switch.
However now ...
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2
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160
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How does the magnetic field in a synchronous machine with two pole-pairs distribute if I only apply DC-voltage on two phases? (Star connection)
I am struggeling to understand the following:
If I consider a synchronous motor with only one polepair and apply dc-voltage to two of the three phases this results in a static magnetic field.
The ...
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How to identify electric motors, find pinouts, etc
This is my first question here so I apologize if I do anything wrong in making this post.
I recently pulled the electric motors out of two junked home appliances (a 120v clothes washing machine and a ...
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2
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127
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Do any continuously-variable-speed electric motors use Alternating Current?
All the "energy-efficient" continuously-variable-speed electric motors I've seen in consumer applications (e.g., HVAC, water pumps – all motors producing on the order of one horsepower) ...
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Pumping machine (Centrifugal ) fails to pump
I have a centrifugal pumping machine that fails to pump up consistently. When powdered on, it spills up water, then stops and continues intermittently like that without a consistent flow of water out. ...
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43
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Will providing below rated torque to a DC machine acting as a generator still allow it to rotate?
I'm working on a system that will generate electrical power from a mechanical input. If the mechanical input is unable to generate the required torque to meet the rated torque of the DC machine, will ...
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