YTLEJ(IPW23)Torque Three一Phase Asynchronous Motor for Tower Crane Amplitude Mechanism

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Overview

This series motor adopts modular design. It consists of four parts: torque motor, eddy current regulator, electromagnetic brake and fan, which can be flexibly configured to
meet different customer demands. With introduction of a new special brake, it can cater for outdoor and high-altitude operations. The product has reached the international
advanced level with the patent for utility model. It is mainly used as a trolley speed-change gear for tower crane as well as other mechanical equipments requiring for
constant power and stepless speed regulation.

FeaturesConstant tension and linear speed, stepless speed regulation, frequent starting;
Special eddy current regulator for the motor realizes smooth startup or stop;
New special brake (national utility model ZL201120188173.2, ZL2011201881643). This ensures fast braking and accurate positioning with higher safety and reliability
Besides, manual release is possible;
The rotor is made of copper alloy with better mechanical properties and mechanical bearing capacity in the domestic industry;
Spindle is hot forged by alloy structural steel，with good overall mechanical perlormancc;
A thermal protection component is buried into the in stator winding, making motor more safer and reliable;
Compact structure, small volume, lightweight as well as high reliability, so itfeatures easy maintenance and repair.

Q: What is the influence on the motor when AC motor is connected to direct current?.: First of all, the motor will not turn, and the second is to see how many volts you are connected to. If the voltage is high, the temperature of the motor will rise sharply until burned. Of course, you don't have a problem with a dry battery.

Q: I have a AC motor that I wanted to hook up to a small go cart its 115 dc volts and 4.8 amps what controller thingy (that makes it speed up and slow down) should I use?: you're able to be able to desire to get a easy dimmer change that's able to controlling inductive lights plenty. merely connect this in sequence with the motor and it may supply a real looking point of administration. determine that the dimmer change has a great sufficient contemporary score for the motor.

Q: My friend said she got a strong electrical burning smell and her blower doesn't work in any of the positions. I'm assuming its the blower motor. Anything I should be aware of?: the resistor can go bad in those.check the compressor too, but it is probably the motor with a burning smell. take it apart and check it i have seen mice build nests in them, you will probably have to replace resistor as well, the blower motor usually will short out the resistor

Q: I want to control the speed of a small electric motor. I'm making a small hobby project, what parts would I need to do this, besides the motor? Also should I use a brushless, or regular motor?: It depends. Is it a DC or AC motor? You can control a DC motor by varying the voltage applied to it. AC motors need a circuit with Triac's in it to vary the time when the AC is applied to the motor. There are electronic kits on the internet that do this for you. To control a brushless motor you need to use pulses to vary the speed. Varying the voltage level won't work. You control the speed by varying the time the voltage is applied to it.

Q: what is induction motor?: Induction Motor Definition

Q: What are the reasons for initial inrush curent at start of an AC motor?: The coils of an electric motor have inductive reactance but very little resistance. The coils initially act similar to a short circuit when the switch is closed and the motor shaft is stationary. Once the motor begins to rotate, the motor develops back EMF (voltage in reverse polarity to source voltage) which counters the source voltage, reducing the effective voltage across the motor coils, and reduces current flow. Back EMF is highest in a motor that is at full operating speed and under no mechanical load. When the motor is under mechanical load, back EMF is reduced until the motor is under full load, increasing the current to full load rating.

Q: For AC motors, when the voltage is constant, the frequency of the voltage becomes higher or lower, so what is the impact on the motor?.: Frequency will affect the motor speed, high frequency, motor speed, low frequency, motor speed is slow.

Q: i have seen many electric car project all the cars are using pmsm motor . why: A permanent magnet synchronous motor would be subject to slippage when their maximum torque has been reached. The overload behaviour of AC induction motors are much more acceptable. You'll note that the DIY'ers advocating permanent magnet motors are never professional electrical engineers, there are reasons why. Synchronous motors are by definition AC, notably three phase AC, there are no DC synchronous motors unless you consider brushless which is really an AC motor with a builtin inverter. Go with AC motors, I did an undergrad paper back in the 80's on how AC motors would eventually supersede DC motors in LRT transportation, decades later, it did.

Q: What are the speed regulating methods of AC motors? Detailed point: (1) rotor circuit series resistance: used in AC winding asynchronous motors. The range of speed regulation is small, the resistance consumes power, and the motor efficiency is low. Used of cranes.(2) change the speed of power supply voltage, the speed range is small, the torque decreases greatly with the voltage drop, and the three-phase motor is usually not used. Used for single-phase motor speed regulation, such as fan.(3) cascade speed regulation, in essence, is the introduction of additional rotor electromotive force, change its size to speed. It is also only used in wound motors, but the efficiency is improved.(4) electromagnetic speed regulation. Used only for slip motors. By changing the exciting coil current, stepless smooth speed regulation, the mechanism is simple, but the control power is smaller. Not suitable for long term low speed operation.