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Questions tagged [induction-motor]

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Induction motors are alternating current motors with rotors that are energized by induction. They are available with power ratings ranging from about 1/500 Hp (1.5 W) to 30,000 Hp (22MW). They are the dominant type of AC motor used in most of that power range. Squirrel-cage motors are, by far, the dominant type of induction motor.

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Here is my setup STM32F401CCU6 WeAct Blackpill, which controls A 3.3V-24V Optocoupler, which controls A Siemens 3-phase contactor to switch a 400VAC induction motor, with flyback diode on the ...
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I'm trying to experimentally characterize an undocumented asynchronous (induction) motor by obtaining its steady-state torque-speed curve. The motor has a solid external rotor, so the standard ...
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I want to design a hybrid relay for a three phase motor. The rating is 230VAC L-N @20A. In order to get a better idea, I ordered this hybrid motor starter. It is also a 3 phase hybrid motor starter ...
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I'm designing a closed-loop Variable Frequency Drive (VFD) for a 2.2 kW induction motor (220V AC RMS input and output). I'm using a microcontroller for control with ADC for feedback, and the power ...
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I have an induction motor (3-phase delta 440 VAC @20 A) and I already have a device which measures the temp, current, voltage and vibration of the motor. This data can read through the modbus. But in ...
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I am designing a circuit where I have to turn on/off three phase AC induction motor using a MOSFET. The motor wiring is connected in delta connection so we do not have any neutral. In the schematic ...
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The IR2214 is the driver I've chosen for my VFD that will drive an Induction Motor. One thing in the datasheet that caught my attention was that in multi-phase configuration, when one gate driver ...
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We are looking for a viable solution to a requirement to deliver a short burst of soft starter current (45 A) followed by about 90 seconds at 12 A to a 3 phase 400 V AC induction motor. The duty cycle ...
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I would like to determine if an electric motor has a shorted winding as it was throwing fuse while running. To exclude possible mechanical issues, as bearings and sealings, I stripped it of the ...
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I have one simple question related to changing direction of a 220V split phase AC motor. Here is the circuit diagram: The operation is as follows: When relay 1 is activated the motor rotates in one ...
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Working on this 230V 3hp submersible pump motor. Obviously the start capacitor blew up, and there was significant heat or force in the windings to destroy the strings holding them together. The first ...
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Currently I am doing calculation of V/F control for Induction motor (IM) control using Matlab. I do simple voltage and current calculation based on the equivalent IM circuit. then get the torque based ...
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Can somebody explain me how and why the circuit diagram of Induction Motor is as mentioned. I am interested in knowing why the inductances and resistances are connected in the following manner and not ...
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I am working on a project with Raspberry Pi with display, ESP32 with a couple of sensors and an output relay. The basic circuit diagram is shown in the figure below. Now coming straight to the ...
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In our lecture, the mutual inductance in an induction machine, say between phases a and b the mutual inductance is $$L_{ab} = L_mcos\Big(\frac{2\pi}{3}\Big)$$ We were told that the \$\frac{2\pi}{3}\$ ...
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I am using the DM860T stepper motor driver to drive this NEMA 34 stepper motor, and I just want to use a braking resistor to absorb the voltage spike in the event an emergency stop button is pressed ...
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I need some assistance in wiring this shaded pole motor The windings are connected in parallel as shown. I need to connect (230V AC) Neutral and Live for 2 speed connection.
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I have a 100KVA,400V, 60hz generator set on which I need to calculate the size of a 3 phase induction motor to be used without generator overload/shutdown. 144.34A is generator full load current.
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I have a single-voltage, dual-speed induction motor with Dahlander connection. A rotary switch is used to select either the low or high speed. The motor specs are: Voltage: 220V 3-phase, 50Hz Current:...
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I have a specific application (3 HP-2.2 kW, 220 V 3PH/9.5 A, 3000 rpm induction motor from an old woodworking combination machine) I would like to use a Variable Frequency Drive for. Are there ...
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I have an old AC motor that powers a jointer machine for woodworking from the late 70s. The plate has incomplete specs for the voltage. In other words, the voltage in the plate seems to have been ...
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After we check the IR for rotor and stator for our MV motor this motor for FAN , as a result the value acceptable and IR good value, After that we found some current leakage flow in the earth cable ...
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My friend and I are reviving an old extruder for making filament and the screw speed is too fast to start the cooling line. It is powered by a very unique motor which I've never heard before. Elektra-...
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I’m working on a circuit that involves an EL3063 optocoupler and a 25TTS12 SCR. The circuit is designed to control an AC load, and I've included a schematic (attached below) for reference. Problem:The ...
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i need to extract a fans' RPM using the AC current frequency. I don't have the means to actually measure RPM but i have some nameplate values for the motor. given that i have the slip rating at full ...
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Looking for feedback, building a cost-efficient inrush current limiter to a 230 V 1.5 kW single phase induction motor, by using a timer relay (16 A rating) to shunt/bypass an initial 30 Ω power-...
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(Q2 is not populated)in above circuit the R11, R12 VALUE IS 360 ohm 2W, R10 is 39 ohm 2W and the c2 is 0.01uf 1000v fuse is rated 16A 250V, Q1 is BTA41600B, the above circuit use 80-100UF 250vac ...
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Is it possible to have induction motor with power factor 1/unity under 0.2, 0.4 , 0.6, 0.8 and full load conditions by switching/adjusting the correcting motor capacitor value (or by simply switch on ...
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I decided to try and create a 4-pole 2-phase induction motor for learning purposes. After taking a class in the principles of electromechanical energy conversion (a few years ago) I was dissatisfied ...
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What's going on with this motor ? It's not simply wired into a star/delta starter. There's a 3rd option I'm not familiar with. The legend below and to the left shows Star/Star-Star/Delta.
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I want to realize factors which give nonlinear model of torque toward speed with power consumption in induction motor. I tried find math model induction motor. But usually, I had same charts: As we ...
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When increasing the speed of an induction motor if one wants to maintain the same torque, the voltage has to be increased at the same proportion as the frequency of the AC supply. This is because the ...
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I have designed a three phase inverter to drive a Synchronous motor. The motor operates fine when I place the PCB outside of the Aluminum enclosure of the motor. The voltage and frequency increases ...
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I have a single phase induction motor connecting to a spindle. The motor is connected to a electronic speed controller and I believe it has a series capacitor. If spindle are to be spin while motor ...
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In a rotor of an induction motor, the core plates and wire coil conductors have non-zero thicknesses. Therefore, eddy currents non-zero too. And they approximately proportional to the coil current of ...
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If I connect my inverter to a resistive load or small inductive load the DC supply voltage (in my application it is 56 V) stays constant. However, if a powerful induction motor is connected, the DC ...
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Circuit Details: An esp32 driving 2 relays(5V SPDT HL JQC-3FC(T73)DC5V) via a darlington array(ULN2803A). The relays are connected to the start, stop buttons on a star-delta motor starter. The motor ...
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I just bought a lathe with a motor that used to be connected to 3 phase 400V. I am trying to power it using single phase 230V domestic mains. I understand that I can use a VFD to provide the extra ...
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I have a question about how to select the right capacity of voltage stabilizer for a 3-phase supply system. That system has the following type of load and capacity: Two 1 hp 3-phase motor, 440 VAC (...
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In articles, e.g. here, I often find this statement: In an auxiliary winding, a counter EMF is produced as the speed of the motor increases, and this EMF will limit the current that passes through ...
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It is a 36 μF, 440 VAC, 50 Hz rated motor running capacitor, used in a single-phase motor. AC source is 240 V, 50 Hz. The motor has stopping working. I want to know whether it is due to a faulty ...
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Single phased motor rated for 220V, 50Hz isn't working. I want to know whether is it just due to a failed capacitor or is the motor itself is damaged. The capacitor looks clean from the outside; no ...
Cinverse's user avatar
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If you are trying to pass an AC signal through antiparallel SCRs (there to isolate the signal when required) where the AC frequency is low enough to satisfy the turn-off time requirements during the ...
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This is the question I am trying to solve: A delta connected fully loaded induction motor draws 90A from a 400V supply when started direct online. Show by calculation the current at start up that the ...
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Here are two picture of my washing machine's motor. I am not sure whether you still have such that machine in your country. It is a top loading washing machine's washing motor (a another smaller one ...
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Although I can understand both of the diagrams above, I am confused about the relations between them. As marked in the per-phase equivalent circuit of a 3-phase induction motor above, we assume the 3-...
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Here is motor of an washing machine. As shown in the picture, it is a 220VAC/50Hz, 135W, and 1.3A induction motor. There are voltage, power, and the current. What I understand about how to calculate ...
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I am thoroughly confused again. I am at the point of relegating electricity as a black box, a mysterious phenomena I'll never comprehend. I just saw a YouTuber build an elaborate water mill for ...
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This circuit is compensating the potential difference between the chassis and motor so the bearing current or leakage current cannot flow from motor to chassis to ground. If the chassis is at a high ...
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For my test bench, I am trying to implement an inductor 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 ...
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