ABB Original AC DC HIgh Efficiency Motor QABP

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Brand Name:ABBModel Number:HXR 400 SeriesType:Squirre Cage Motor
Frequency:50.2 HzOutput Power:350 KWProtect Feature:Explosion-proof
Phase:Three-phaseCertification:CEAC Voltage:690V
Place of Origin:Shanghai China (Mainland)Efficiency:IE 1Packaging Detail::EXPORT STANDAR WOODEN CASE
StructureAsynchronous MotorFunctionDriving UsageUniversal

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Q:How much power can an electric motor handle?
DC motors are known for their longevity and ability to be overloaded without damage. Its hard to say what motor will take what though because some quality motors will run fine on almost twice the voltage while some cheaper ones will thermally break down very quickly. If you can keep a motor very cold you can probably push it pretty far, if you have a large supply for DC power and a LARGE peltier you may be able to get a dc motor over quadruple its rated voltage. At some particular point though the wire coatings will break down so over-volting a dc motor will eventually damage the motor.
Q:how can we define dynamic eccentricity index in ac motor?
In AC electric machines, it is much more important to detect possible dynamic eccentricity of the air gap. It can be detected by the index of slot frequency vibration component modulation by the rotation frequency harmonics.
Q:I want to build an electric generator from an electric motor, how do I do this?
You have already half of the generator equipment, your driver is the 16HP diesel engine all you need is get from a junk yard a generator no larger than 8 KW and a universal joint (check Lovejoy joint) to connect the respective shafts. Depending of what you get, your output will be AC or DC, if it is AC then you have enough power to light a house and feed some domestic artifacts as refrig, water pump, and small ac unit, until you reach the total capacity. If is DC then all you can do is use it as a welder or some similar equipment. Be sure to make a control panel to start, and control performance of the engine, RPM, cooling water temp, oil pressure, etc. also for the generator voltmeter, amperemeter and a battery charger to maintain enough charge to crank the engine, also to include sensors to detect voltage drops as the load is incresed, in order to maintain constant voltage through RPM modulation.
Q:Brushless DC Motor Question?
Dc Motor Questions
Q:Who are the suppliers for a water cooled, 100 hp, 8000 rpm, 460 v, 3 phase ac motor?
I assume you are looking for a replacement. This seems like a spindle motor for a NC machine, but my search didn't find one with all the characteristics mentioned. The clue is 8000 rpm. This is probably a 4 pole motor, so frequency is up to 266 Hz AC supply. It means it works with a variable speed drive, so may be married to that closely (I mean, I am not sure if you can substitute). It may even have speed sensing associated. It is this drive that produces the 460V and the appropriate frequency for the rpm which will be related to V/Hz. These motors are usually meant to be smooth running. Check the spec you gave carefully. It seems too small for 75kW and too fast for 75kW too. Still @ 8000rpm this may be possible. It may be that you can only buy a replacement from the manufacturer/supplier of the NC machine at great expense. Consider a motor rewind and new bearings, whatever (get it refurbished). This might not be so difficult or expensive, but once again, 75kW @ 8000 RPM? Maybe the re-winder needs to know what they are doing for that sort of balance. Some of these have exotic bearings too.
Q:What does permanent magnet brushless motor and brushless DC motor mean?
Brushless DC motor usually adopts a tile rotor magnet, through magnetic circuit design, can obtain the air gap magnetic trapezoidal wave density of stator winding with concentrated windings, so the Induction EMF is trapezoidal wave. The control of Brushless DC motor requires position information feedback. It is necessary to have a position sensor or a sensorless estimation technique to form an automatic speed regulation system. When controlling, each phase current is also controlled to square wave as much as possible, and the output voltage of inverter can be controlled according to the method of brush DC motor PWM. In essence, brushless DC motor is also a permanent magnet synchronous motor, and the speed regulation is also in the category of variable pressure variable frequency speed regulation. Generally, the permanent magnet synchronous motor with stator windings in three-phase distribution He Yongci rotor magnetic circuit structure and winding distribution ensure the Induction EMF waveform is sine, stator voltage and current applied should be sinusoidal, usually by AC voltage frequency. Permanent magnet synchronous motor (PMSM) control system usually adopts automatic control and position feedback information. Vector control (field oriented control) or direct torque control (DTC) can be adopted as the advanced control strategy. The difference between them can be considered as the design concept caused by square wave and sinusoidal wave control
Q:What are the differences between: DC Drives Vs DC Machines (or DC Motors) & AC Drives Vs. AC Machines (Motors)?
Ac or dc motors are strictly devices that convert electrical into mechanical (normally rotational) energy. Ac or dc machines may be either motors or generators. Drives, of either type, are systems which, as well as motors, may also include control elements such as feedback devices, thyristors or frequency converters to provide the motors with appropriate voltage and/or frequency for the given task.
Q:What is the derivation of the formula for the speed of two motors coupled together when driving a common load?
There is no formula to combine two motors driving a common load. There is a means of doing this and it is called a differential drive . This might help you :
Q:I have a 115 volt motor and I need a dimmer switch to control the speed. Which kind of dimmer should I get?
Use one that is rated for motor use. Usually you will see the phrase fan motor. But you need the max current drawn by the motor, and the dimmer should be rated for that current or higher. The one in the reference is rated for motors up to 1.5 amps. That is about 180 watts. If it is always going to be running at the reduced speed, you may be better off with a transformer or a power resistor. For example, a stepdown transformer with an output of 12 volts at 5 amps can be wired to provide 115–12 = 103 volts at 5 amps. .
Q:How to control an AC motor.?
You need a gear motor of some sort, preferably a worm drive one, or one with a brake, You don't need the second one, it needs an external gearbox, and with one can probably lift a couple hundred pounds. I'd get one a bit bigger than the first one, which has a worm drive on it, or add a worm drive to that one. To control it, you would use a pair of relays with 10A 120V contacts, and coils appropriate to your control circuit, likely 12V. One relay would power the motor CW, the other CCW, by each applying power to the lead on either side of the run capacitor. For the bigger motor, you would use a 3 phase (preferable interlocking) contactor set. One set of contacts on each section would engage power to the motor, the other two would apply the correct polarity to the start circuit (in relation to the run windings) for the intended direction.

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