Brushless dc motor of the three-phase bridge inverter main circuit of the there are two kinds of control mode

 ac three phase asynchronous electric motor stator 
Specifications
1. 20 years manufacturing experience 
2. competitive price,high quality 
Brushless dc motor of the three-phase bridge inverter main circuit of the control mode has two kinds:. Conduction mode and three three conduction mode. Two way switch tube conduction under the law and of the three-phase winding back emf waveform is shown in figure 2. Two kinds of works, each cycle has 6 kinds of conduction state, every 60. Electrical work status change. . Conduction mode, with only two switch tube at any time and at the same time conduction. Switch tube conduction sequence: VT1, VT2 - > VT2, VT3 - > VT3, VT4 - > VT4, VT5 - > VT5, VT6 - > VT6, VT1. Each switch www.dongfeng-motor.com tube conduction, 120. Electric point of view, there are 60. Electric Angle without conduction time, never happen through fault, this way of work, also known as two-phase conduction star three-phase six ways. 


Y2 series 0.75kW (1HP) AC Motor for Speed Control
Specifications
1. effiency: IE2 and IE1 
2. 20 years manufacturing experience 
3. 12 months guarantee 

4. low noise and vibtration
Three three conduction mode refers to the three switch tube at any time and at the same time conduction, switch tube conduction order: VT1, VT2, VT3 - > VT2, VT3, VT4 - > VT3, electric fan motor VT4, VT5 - > VT4, VT5, VT6 - > VT5, VT6, VT1 - > VT6, VT1, VT2. Each switch tube conduction, 180. , the conduction time increased, and if one tube conduction and shut off with a delay, through AC synchronous lamination generator short circuit occurs, causing damage to the device. In addition to good use. Conduction way flat part of the square wave air-gap magnetic field, make the output of the motor is large, the electromagnetic torque is greater than three three conduction mode, and torque stability is good.

Squirrel-cage asynchronous motor soft starter application - soft starter way of starting

 Stator Motors Rotor 
Specifications
1. 20 years manufacturing experience 
2. competitive price,high quality 
3. Brand Name: FUJIAN DONGFENG MACHINERY ELECTRICAL LIABILITY CO., LTD


1 current-limiting starting: in the process of starting, limit the starting current does not exceed a certain value (Im), and then keep the output current, I < Im increased under the condition of voltage, until the rated voltage; The motor speed gradually increases, until the rated speed. Slope voltage starting 2: electric motor 12v 500w in electric vehicle motor the process of starting, the output torque of the motor with the increase of voltage, when starting to provide an initial starting voltage Us, then the output voltage from the Us started to grow in a certain slope, slope adjustable), motor accelerating. When the output voltage reaches up to Ur speed voltage, the motor is basically reach the rated speed. When the motor reaches the rated speed, make the output voltage at rated voltage. 3 starting torque control: use in overloading starting torque control, it is the starting torque of the motor from small to large linear rise. 


Y2 series electric motor wholesale

Specifications
1. effiency: IE2 and IE1 
2. 20 years manufacturing experience 
3. 12 months guarantee 
4. low noise and vibtration 

5. AC Voltage: 220V/380V, 380V/660V,400V/690V,220V/400V

It has the advantage of smooth starting, flexibility is good, have better protection to drag system, its purpose is to protect the drag system, extend the service life of the drag system. 4 starting torque and kick control: at the beginning of the start stage, let the thyristor within a very short time conduction after all fall, according to the original set the value of the linear rise again, enter the starting with constant current. Starting torque and kick control and torque control starting similar is also used in overloading starting, the difference is with acmotortrading.blogspot.com a sudden jump in starting torque to overcome static torque of the motor, then smooth torque rise, shorten the start-up time. Starting: 5 voltage control the voltage control starting is used for light load starting of occasions, in guarantee starting pressure drop the maximum starting torque motor, as much as possible to shorten the start-up time, is the optimal way of light load soft starter.