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

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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

Q:. . . They have brushes, but if they are DC, it sure is hard to figure out where the AC gt; DC transformer would be.: All Dremel hand tools use AC motors. You can tell as there is no AC/DC adapter over the cable or enough room to fit one into the units' body.

Q:What's the difference between asynchronous and synchronous AC motors?: Asynchronous motors and synchronous machines actually have a big difference in principle:The synchronous motor works by "the magnetic field always goes along the shortest direction of the magnetic circuit", taking the transition motor as an example. When there is excitation on the rotor, the N and S poles appear; then the stator magnetic field rotates, and its N and S poles change with each other, and always correspond to the magnetic poles of the rotor. So synchronization is formed. What's more, the number of poles of the stator and rotor must be the same, otherwise the motor will not work.

Q:If you cut the power to an electric motor and while it is still spinning if you put a strong magnet near the motor will it slow down more quickly with the magnet or without the magnet near it. Assuming that the external magnet is stronger than the magnets inside the motor. And is there a way to implement this without damaging the motor?: You do not specify if it is a DC or AC motor, but that should make no difference. Yes it will slow down faster and No you can't do it with out damaging the motor. You will likely cause the rotor to hit the armature damage the bearings. Also there the question of interfering with the current generated with the still spinning motor rotor, Those could be high enough, if the magnet is large enough, to exceed the insulation capacity and short the armature.

Q:Why do motors need capacitance when they start?: Only single-phase AC motors use capacitor, DC motor and three-phase AC motor are not needed.The two phase motor coil can not generate a rotating magnetic field, which must be in a coil on series capacitor, the current current branch ahead of another coil, in order to form a rotating magnetic field between the two coils, the rotation of the rotor.

Q:Do we need constant frequency and constant voltage for AC motor forrunning it at constant speed?: No they don't need as such. in fact they are actually two great methods and most commonly used speed control methods other than changing direct rotor speed and others. Formula for frequency is N=120*(f/p) here N is speed and p are number of poles.

Q:Hello everyone,I need help wiring up a pump motor that I just got to replace an old one. It is an Ironhorse Rolled Steel general purpose motor rated at 1 HP. It is dual voltage (115/230) but will be running it at 115V. It uses a T1-T8 system the colors are:Blue T1White T2Orange T3Yellow T4Black T5Red T8The wiring scheme for low voltage is:Line 1: Blue orange redLine 2: White Yellow blackHow do I hook this up to an AC power chord that has White, Black, Green wires?: Every dual-voltage motor I've ever seen has the wiring diagram right on the data plate.

Q:What I want is to generate electricity out from a 2Kw generator alternator and driven by a 800watts AC motor or any AC motor which is much smaller in electricity consumption. I am not thinking of a perpetual machine but to minimize my electric consumption. The AC motor will be connected to the power grid to drive the 2Kw generator alternator.. is this possible? Thanks ahead.: 2kw Motor

Q:Lets say for Airport applications what kind of Motors would be used to run the conveyors? for stop start conveyors used in sorting the baggage would they use DC motors? any idea of the type and power would be helpful. Also for the ones that would maybe be running a large conveyor line like the carousel where you collect your baggage? would that use AC or DC motors, and Im wondering what type and power?: An okorder /

Q:What's the difference between a three-phase asynchronous motor and an ordinary one?: Ordinary motor motor and variable frequency motor of variable frequency motor, it is called the main appearance is different from the ordinary motor frequency conversion motor with forced cooling centrifugal fan, which ensures good motor cooling in low frequency and high frequency, frequency range also see nameplate motor internal structure can adapt to the specific operation of high frequency operation. Ordinary motors are generally allowed to operate under or less than 50hz.

Q:I have a 2001 BMW 325i..the air conditioning completly went out about 2 weeks ago, nothing would work. I took it to a repair shop m,y buddy owns (so i know he didnt cheat me) and they said it may be the blow motor, so they fooled around with it and it started working after 5 minutes of messing with it it automatically came on and started working. They said the antifreeze was low so they filled that up also and I was on my way....about 3 days of the air conditioning working fine, i came out side and id had the ac on high went i turned the car off and it was still on....now even if the cars off the air still blows on high, if you try to turn the air off or turn it down its still on....what could it be??????: bad ac switch. its not sending the right signals or maybe no signal

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