YTRVF(W)Variable一Frequency Three-Phase Asynchronous Stewing Motor for Tower Crane

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Product Description:

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

Features

With introduction of spline drive shaft, it has good mechanical bearing capacity;
The motor is a variable-frequency motor featuring a wide range of speed regulation, high efficiency, small starting current, big starting torque and overload ability;
A thermal protection component is buried into the in winding, making motor more safer and reliable;
Excellent dedicated variable-frequency insulation materials are adopted, improving greatly the insulation reliability;
Compact structure, small volume, lightweight, so it can be braked quickly and positioned accurately. It is suitable for frequent starting and braking;
YTRVFW series motor is provided with an eddy current brake on the basis of YTRVF series. It enables more smooth starting and deceleration braking, making the operation
more smooth and accurate

Users’Options:
This series motor is divided into F1 and F2
F1 with airvane brake;will be determined by the
F2 without airvane brake;users when signing the contract but an encoder interface can be reserved



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Q:Which is better, alternating current tubular motor and direct current tubular motor?
Good communication.The main difference between AC and DC motors is that the nature of the power supply is different. The AC motor uses alternating current. The generator sends out alternating current, while the direct current motor uses the direct current, and the generator sends out the DC point too
Q:What's the difference between a three-phase AC motor and a two-phase one?
A three-phase induction motor consists of a stator and a rotor. Its stator winding is a three-phase symmetrical winding with symmetrical power supply. A two-phase motor is used to specify a motor with a 2 phase winding. Two-phase motor is divided into two categories: drive and servo. The Dan Xiang asynchronous motor used in most household appliances and small appliances belongs to two phase drive motors. Two phase servo motor for control, the stator's two phase windings are exciting windings and control windings respectively, with a space difference of 90 degrees of electric angle.
Q:Can the welding line of AC welding machine be dead?
In fact, if we discuss the electric shock of the two wire from the wider range, the harm to the human body is varied. The human body in the welding process in contact with the two line, the current acting on the human body in the contact area will produce electricity burns, electric brand or the central nervous reflex and strong muscle contraction caused tissue fracture and fracture mechanical injury; arc welding process, the industry protection is not the time, can make it happen an eye disease or make the metal particles penetrate the skin causing skin metallization; in addition, there is a more severe shock.
Q:Can AC motors be converted into generators?
Another method is to replace the original rotor directly with the one or two pole permanent magnet. Note: the poles of the permanent magnet should be as close to the stator as possible, but they cannot be touched. Rotating the rotor (or permanent magnet rotor) can pass the stator around the output voltage, current. If the speed is increased, the voltage can be mentioned very high.
Q:What's the UVW representative of the motor, please?
Three phase alternating current is a form of transportation of electrical energy, referred to as three-phase electricity. Three phase AC power supply is composed of three alternating current potential with the same frequency, equal amplitude and phase difference of 120 degrees. There are many uses of three-phase alternating current. Most of the AC power equipments in industry, such as motors, adopt three-phase alternating current, which is often referred to as the three-phase four wire system. In daily life, the use of single-phase power supply, also known as lighting electricity. When the lighting power supply, use three-phase electricity one relative to supply electrical equipment, such as household appliances, while the other one is the line of three-phase four wire fourth wire, which is the zero line and the zero line drawn from the neutral point of the three-phase power.
Q:How to connect the AC motor?
There are two kinds of three-phase AC motorStar: the three connecting terminals are connected with three phase lines of the three-phase power supply, and the three terminals are shorted together with wires or metal pieces.
Q:What is the difference between AC motor speed and DC motor speed?
DC motorThe stator of a direct current motor is a fixed magnetic field, and the direct current changes through the brush of the rotor to form a magnetic field around it, thereby rotating in the stator. In industrial enterprises, due to relatively reliable DC power supply, DC motor is generally used to require reliable operation of mechanical or mechanical spare security; and because the DC motor with variable speed input voltage can also change, so often need to control local DC motor are many, such as milling machine, planer, electric vehicles, subway trains and so on.
Q:The difference between three-phase AC synchronous motor and three-phase AC asynchronous motor
Asynchronous motor is stator into alternating current, to produce a rotating magnetic field, and the rotor is produced by induction and magnetic field, so that the two magnetic field, so that the rotor rotates the rotating magnetic field of stator and rotor. The stator rotating magnetic field than a slow slip, not synchronous so called asynchronous machine.The rotor of a synchronous motor is a constant magnetic field which is added by the man to the direct current, so that the rotor is synchronized with the rotating magnetic field of the stator, and then the synchronous motor is called synchronous motorStructure and principle
Q:Why is the rotor of an AC motor neither magnetic nor can it rotate?
The question is not entirely good.What you call an alternating current motor is an alternating current asynchronous motor, also known as an induction motor. Its working principle is: the stator current, will form a rotating magnetic field; the magnetic field and the rotor bar cutting the magnetic field; because the rotor is a closed loop, thus forming the current; so there is a movement with conductor in a magnetic field. This is the action of electromagnetic induction.
Q:Can AC motors use direct current?
The DC motor is divided into two exciting modes: series excitation and shunt excitation. The series excited DC motor can be used in both DC and DC as long as the voltage is suitable. Shunt excited DC motors can only be powered by dc.

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