YTPEZ (1P54) Three一Phase Asynchronous Motor for Travel Mechanism of Tower Crane

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Overview

The motor is a variable-
mechanisms in very harsh
frequency
working
，three-phase asynchronous motor exclusively designed for tower cranes and other similar travel mechanisms. It is applied to the travel
conditions such as construction site or open pit quarry

Features

Introduction of a spline drive shaft, with excellent mechanical bearing capacity;
Variable-frequency speed regulation in a broad range with high efficiency, small starting current, big starting torque and strong overload capability;

Duc to compact structure, small size, lightweight, high reliability, it can be quickly braked and accurately located, suitable for frequent starling and braking;

Introduction of a new brake (national utility model patent. Patent No. ZL201120188173.2, ZL2011201881643). It can buffer the startup to mitigate the impact on the
tower crane. In addition, the motor has very high security and reliability, and can reduce the maintenance time, and cut down the maintenance cost;

A thermal protection component is buried into Lhe stator winding, so the motor operation is more secure and reliable

Q:The direction of the flow in the pump with DC/AC motor?: The difference between AC and DC motors deals with the coils in the motor. AC motors do not oscillate back and forth; they turn in one direction just like a DC motor. Therefore, it doesn't matter whether you use a DC motor or an AC motor to power a pump - they will both pump the fluid in the same manner.

Q:What are the differences between AC motors and DC motors?: (1) the same structure, alternating current generator and DC motor structure are composed of stator, rotor, iron core, coil, magnetic pole, brush and so on.(2) the same electromagnetic applications are the applications of electro magnetic and magneto electric phenomena.(3) using the same conversion asynchronous motor, as long as the prime mover (such as turbine, diesel engine etc.) drag, rotor speed is n higher than the rotating magnetic field N1 synchronous speed, slip even if S= is negative, coupled with the exciting current, turned into AC asynchronous generator; DC motor, if the power part it changes the rotation for external power, armature winding and excitation winding end it on a DC voltage, the DC motor can also be used as a DC generator.(4) operation and maintenance are required to check the operation of the same operation, sound and vibration is normal, the ventilation is good, the bearing lubricating oil is sufficient, the stator windings and the temperature of each part is normal, there is no abnormal rotor brush spark voltage and current is in the rated range, chassis grounding or zero is good.

Q:AC motors are designed to operate at +/- ____ Percent of their rated potential difference, and +/- _____ percent of their rated frequency?: To approach the question the way it is asked would be to say few. Only synchronous A/C motors operate at a fixed speed based on the number of poles and the frequency of the power supply. A synchronous speed can be in increments of 3600 RPM or 2500 RPM depending on the frequency. Induction A/C motors will operate at the synchronous speed when there is no applied load and will begin to slow down slightly as load is applied. That slip is usually around 2- 3% when the nominal design horsepower is produced. . For example, an 1800 RPM synchronous motor will operate at 1800 RPM when fully loaded. A common induction motor will operate between 1800 and 1750 RPM. Most motors are manufactured to specific horsepower ratings at their design speeds and so cataloged. When a device needs a motor and it's design horsepower is known, the motor selected will be the next larger size. For instance a direct drive pump may be rated at 17.5 horsepower non-overloading (maximum) at 1750 RPM. There are no standard motors made to that specific horsepower so a 20 horsepower motor will be selected and will run efficiently at that partial load. Depending on the motor cooling system and the motor wiring insulation design, some will have transient service factors of 10-15% above the full load rating, but prolonged operation in an overloaded condition will shorten the motor life. In the larger sizes, motors can be custom built to closely match a non-standard horsepower within the normal speed range.

Q:I have a 1999 Kia Sportage 4WD 2.0L I-4: normally the blower motor is located underneath the dash on the passenger side by the floorboard of the vehicle

Q:HiI was interested in the idea of using an electric motor as a kind of long lasting flywheel. It would generate electricity as a dynamo and store this in a battery. The electricity produced would then be supplied back to the motor to turn it. I know there would be efficiency problems but what else would stop this design. It's just I've never heard of a motor being applied as both a motor and dynamo (except perhaps in a hydroelectric dam) and wondered if this might be a problemThanks to anyone who can give some insight!: Any AC motor could not generate electricity ! It is a waste of time effort .

Q:What is AC induction motor?: Three phase motors must be cut off at the same time when the 3 phase motor is switched off. You can't just cut off 1 or 2 of them. This will burn the motor. Usually, the electrician calls it "eating a single phase"".

Q:I have an AC motor that has a resistor. Why are resistors used? Any answer is appreciated. As simple as you can. Thanks: AC motor does not need a fix resistor ! Perhaps it was a capacitor ? Show the picture if you could or read what it marked on it.

Q:1- replace the supply fuses with larger ones, 2- swap two of three leads, 3- rearrange all conections, 4- tie one lead to the case of the motor: #2 is correct.

Q:Is switch bad on my pickup if, the acurator motor is not opening the heater box door for inside when max ac?: Is this an early model Chevrolet in the 1990's? If it is there is a link on the motor actuator, under the dash, that has fallen off. When it falls off you will have either full defrost with no max. ac from the dash, or you will have max ac from the dash with no defrost. Get upside down under your dash with a small flashlight so you can get your head in there to find it. If this is the case it will go right back on. It is located up under the dash just to the right of the steering column. Good luck.

Q:If the volts and amp (rms) have been given on continous basis..Is it electrical load/input a motor can sustain?If HP is given tehn woud it be shaft power: Almost all AC motors have a label with the information you need. The voltage shown is the voltage required. The Amperage shown Running Load Amps (RLA), or Full Load Amps (FLA) is the power it will draw at it's rated load. Example: Typical ?hp Cap Start 1750rpm 60hz induction motor will show 8.0 RLA, 48.0 Locked Rotor Amperes (LRA) This motor draws 48 Amperes @ 120V for a little less than one second while starting. The current might drop to 3.5 Amperes no load and rise to 8.0 Amperes at the rated ?hp load. If you measure current you will find that excess load draws current beyond the motor's rating which results in overheating and shutdown if it is thermally protected (as it should be). Motors must be matched to Voltage available, ambient temperature and conditions, required starting torque, duty cycle, required power at speed, and numerous other factors.

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