ABB High Voltage AC Motor

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Q:Winding of single-phase AC motor?
Depending on the type of motor, the range motor is the same as you say. Asynchronous motors are not like this.
Q:I just replaced the AC blower motor. When it went out freon leake through the vents. Do I have a leak.?
Sounds like all these things are unrelated to each other. Unless you damaged the evaporator (cold coil inside the car) while changing the blower you shouldn't have had any leaks. BUT if you put the wrong screw in the wrong location and forced it in then you might have punctured the evaporator. One has nothing to do with the other unless you damaged something (or that screwdriver managed to puncture the evaporator). The resistor pack is for controlling motor speed. If your blower isn't running on high, perhaps you miss wired something. But generally I'd not expect that to be the case. The other alternative is that the resistor pack (also not related to the blower failure or the leak) may need to be replaced. Maybe that screwdriver damaged THAT. In short, if the refrigerant leaked out - you have a leak. If the fan isn't running on high - you have a motor speed control issue. 'av'a g'day mate. )
Q:De-rating the power of AC induction motor at 50deg C ambient temp.?
The rated frequency and voltage do not change. The rated speed is determined by the frequency, so rated speed doesn't change either. Rated power is rated torque multiplied by rated speed, so only the rated torque is reduced to 93% of the normal rating. Current is determined by the actual applied load torque, but reducing the torque by 7% will cause the current to decrease by somewhat less than 7% because the motor has a high no-load current. The current may be something like 35% of rated when there nothing connected to the motor shaft.
Q:AC motor stator winding does not turn, why the back EMF?
When the current is energized, the coil almost does not move and the current is the maximum. The torque generated by the ampere force is much greater than the resistance torque, and the coil begins to rotate. When it starts to turn coil cutting magnetic line, resulting in a "reverse EMF E" in the coil, and the coil loading external potential U (external power supply) play a role in contrast, reducing the current. At the beginning, the reverse electromotive force is very small, the current is very large, the torque of the ampere force is larger, and the speed is increasing gradually. As the speed increases, the reverse electromotive force increases, and the current in the coil decreases. The torque of the ampere force decreases to the maximum speed of the motor when it is against the resistance torque.
Q:does a 1/2 hp dc motor produce the same torque as a 1/2 hp ac motor?
For the same HP ,the more the speed ,the less the torque
Q:What is wrong with my car? Blower motor, AC, or both?
i own a repair shop,and what is wrong with the blower motor is the blower motor resistor has gone bad on it ,this is what helps control the speed of the blower motor and also helps keep it from burning up all the time ,it mounts on the out side of the heater box in under the hood,and is real easy to install but that's whats wrong with that part of it,good luck with it hope this helps.
Q:Does the DC motor work the same as the AC motor?
AC motor without carbon brush and commutator, maintenance free, strong and wide application, but the characteristics to achieve performance equivalent to DC motor to be used to achieve complex control technology. AC motor is divided into two categories: asynchronous motor and synchronous motor. Asynchronous motor is divided into single-phase asynchronous motor, two-phase asynchronous motor and three-phase asynchronous motor according to the number of stator phases. The three-phase asynchronous motor is simple in structure, reliable in operation and low in cost.
Q:What is AC induction motor?
An induction motor and an alternating current commutator motor belong to an alternating current asynchronous motor. Induction motors are divided into single-phase asynchronous motor, AC and DC motor, and so on. We usually call induction motor as AC asynchronous motor.
Q:Why are DC motors more powerful than AC motors of the same power?
In order to limit the starting current, a specially designed variable resistor is often inserted into the armature circuit. In the starting process, as the speed continues to rise, each segment resistance is shorted in time, so that the starting current is limited to a certain allowable value. The working principle and starting method of this kind of DC motor is called series resistance starting. It is very simple and easy to use. It is widely used in various medium and small DC motors. However, due to the large energy consumption during starting, it is not suitable for motors that are frequently started and medium and large DC motors. But for some special needs, for example, city buses are often started. In order to simplify equipment, reduce weight and facilitate operation and maintenance, it is usually adopted serial resistance starting method.
Q:What are the advantages of DC motor over AC motor???????
The main advantage of a DC motor over an AC motor is that it can operate directly from from a battery. The speed of a DC motor can be controlled with a less complicated control unit that the unit required for an AC motor. Only the armature voltage needs to be controlled.

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