WTD/YBT/YTD series elevator motors

Using permanent magnet synchronous motor of elevator traction system,usually a gearless traction.Highlight the permanent magnet synchronous motor is easy to make the advantages of low speed and high power.Its compact structure,complete functions,traction motor,traction wheel,electromagnetic brake,in a photoelectric encoder,and easy to install,easy to use.Especially in the development and application of machineroomless elevator,the permanent magnet synchronous electrical motor 12v 1000w traction motor installed in the hole of the lift,the room of construction cost is saved,and beautify the appearance of the building.The wholesalemotor.blogspot.com control chart is shown in figure 4.When the load changes,the permanent magnet synchronous motor by adjusting the Angle between 8 to adapt,its response is fast.


In order to make the elevator has the good comfortable starting and brake and leveling accuracy,joined the accurate rotor and stator rotor position in the system unit and voltage current detection device,determine the size of the motor magnetic field,direction at any time.Position detection device using rotor position sensor (photoelectric encoder or rotating transformer,etc.).Capsules load detection device can ac motor wind generator use a variety of forms such as position,pressure,to measure and calculate in advance,the elevator load given proper direction and the size of the moment,can switch output,analog (voltage) and frequency (hf anti-jamming is strong,can remote transmission),etc.The feedback signal is compared with the given signal,computing,according to the predetermined control mode control,can get better than that of the other performance of the drive system.

Turbine check before starting the project?

1) steel pipe pressure is normal;(2) the guide vane and the butterfly valve seated;(3) 220v ac electric motors water machine room without obstruction of rotational sundry,shaft seal intact,check the top discharge valve fully open; (4) cooling water pressure is normal,ling oil inlet and outlet valves,air cooler wholesalemotor.blogspot.com inlet valve open to a third opening;(5) the airlock have low speed permanent magnet generator withdrawn,the brake pressure is normal; Electrical engineering network (6) check back to the fuel tank and gravity tank oil level,oil color normal;(7) ac geared motor governor system,butterfly is normal;(8) carbon brush,brush holder,slip ring is in good condition,all the fuses and connecting screws not loose phenomenon;(9) check speed measuring device,temperature checking device,temperature indicator and shearing pin signal device indicates normal,gratuitous barrier signals.

Only a winding motor,rotor cage type

When a single-phase sinusoidal current in the stator winding,the motor can produce an alternating magnetic field,the magnetic field strength and direction interplanting sine law of change at any time,but is fixed on the spatial orientation,say again so the magnetic field is alternation pulse magnetic field.This alternation pulse magnetic field can be decomposed into two at the same speed and direction of rotation are instead of a rotating magnetic field,when the rotor static,the two rotating magnetic field generated in the rotor torque of two equal and opposite,making synthetic torque is zero,so the motor can't rotate.When we use the motor rotates in the direction of a force (clockwise),then the rotation of the rotor and clockwise direction magnetic field between the cutting lines of magnetic force movement decreases;The rotation of the rotor and counterclockwise direction magnetic field cutting lines of magnetic force between the movement.This balance is broken,the total electromagnetic torque generated by the rotor will no longer be zero,rotor spun along the driving direction.

To make single-phase electric function automatically spin,we can add a starter in the stator winding,starting with the main windings in space by 90 degrees,starting winding to generator rotor and stator concatenate a suitable capacitance,makes differ with approximation in the phase of the primary winding current 90 degrees,the so-called split-phase principle.These two differ 90 degrees of electricity flow in time into the two differ 90 degrees of winding on the space,will be produced in the space (two-phase) rotating magnetic field,under the effect of the rotating magnetic field,the rotor can be automatic starting,after starting,to speed up to a certain,with the aid of an installed on the rotor of the centrifugal switch or other automatic control device will start winding broken,only main winding work in normal working conditions.Therefore,starting winding can make short work.But there are a lot of time,starting winding is not broken,we call this kind of motor capacitor,single-phase motor to change this kind of motor,can be achieved by changing the position of the capacitor is concatenated.In single phase motor,the rotating magnetic field generated another method called shield electrode method,also known as single phase mask pole type motor.This made salient pole motor stator,which has two kinds of the poles and quadrupole.Each pole in a third - quarter pole face open place with full of small tank,the pole is divided into two parts,on the small part of the suit on a short circuit copper ring,like pole to cover up this part,so called cover pole type motor.

Single-phase winding set in the entire history of the magnetic poles,each pole of the coil is connected in series,the connection must make its polarity,in turn,according to the N,S,N,S arrangement.When the stator winding current,the magnetic pole of the main magnetic flux,according to lenz's law,which through the short circuit copper ring main magnetic flux on the copper ring on a phase lag is only one winding

single-phase ac motor,the rotor's cage.When a single-phase sinusoidal current in the stator winding,the motor can produce an alternating magnetic field,the magnetic field strength and direction interplanting sine law of change at any time,but is fixed on the spatial orientation,say again so the magnetic field is alternation pulse magnetic field.This alternation pulse magnetic field can be

decomposed into two at the same speed and direction of rotation are instead of a rotating magnetic

field,when the rotor static,the two rotating magnetic field generated in the rotor torque of two

equal and opposite,making synthetic torque is zero,so the motor can't rotate.

When we use the motor rotates in the direction of a force (clockwise),then the rotation of the rotor and clockwise direction magnetic field between the cutting lines of magnetic force movement decreases;The rotation of the rotor and counterclockwise direction magnetic field cutting lines of magnetic force between the movement.This balance is broken,the total electromagnetic torque generated by the rotor will no longer be zero,rotor spun along the driving direction.To make single-phase electric function automatically spin,we can decide on Adding a starting winding son,starting with the main windings in space by 90 degrees,starting winding to concatenate a suitable capacitance,makes differ with on the phase of the primary winding current approximate 90 degrees,the so-called split-phase principle.These two differ 90 degrees of electricity flow in time into the two differ pumps 90 degrees of winding on the space,will be produced in the space (two-phase) rotating magnetic field,under the effect of the rotating magnetic field,the rotor can be automatic starting,after starting,to speed up to a certain,with the aid of an installed on the rotor of the centrifugal switch or other automatic control device will start winding broken,only main winding work in normal working conditions.

Therefore,starting winding can make short work.But there are a lot of time,starting winding is not broken,we call this kind of motor capacitor,single-phase motor to change this kind of motor,can be achieved by changing the position of the capacitor is concatenated.In single phase motor,the rotating magnetic field generated another method called shield electrode method,also known as single phase mask pole type motor.This made salient pole motor stator,which has two kinds of the poles and quadrupole.Each pole in a third - quarter pole face open place with full electricalmotor1.blogspot.com of small tank,the pole is divided into two parts,on the small part of the suit on a short circuit copper ring,like pole to cover up this part,so called cover pole type motor.Single-phase winding set in the entire history of the magnetic poles,each pole of the coil is connected in series,the connection must make its polarity,in turn,according to the N,S,N,S arrangement.When the stator winding current,the magnetic pole of the main magnetic flux,according to lenz's law,which through the short circuit copper ring main magnetic flux to produce a in the copper ring on the phase lag