Brushless dc servo motor characteristics

Y2 series high power China ac motor

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

4. low noise and vibtration 
Moment of inertia of small, low starting voltage and no-load current; Contact the reversing system, generator greatly improve the motor speed, maximum speed up to 100 RPM, 100; Brushless servo control in the implementation of the acmotor2.blogspot.com servo motor, squirrel cage induction motor without encoder also can realize single phase induction motor the control of speed, position, torque, etc; ac motors three phase induction motor generator There is 3 phase induction motor no brush wear condition, in addition to high speed, also has a long service life, low noise, diesel generator set no electromagnetic ac motors interference, etc.

How much is the no-load current of asynchronous motor?

electric motor stator rotor lamination motor parts 

Specifications
1. Lamination of electric motor 
2. IP54 class F 
3. 100% copper 
4. silicon steel stamping 

5.stunning performance 
Formula is the scene quickly calculate motor no-load current of specific numerical formula, it is a lot of ac electric motor the test data. It is in line with "the no-load current of the motor is the 1/3 of its rated current". At the same time it is in line with practice experience: "the no-load current of the motor, shall not exceed the capacity of the kw number can be used for" the principle of (after repair of old, small capacity motor). Formula "capacity by about eighty percent for" refers to the general motor no-load current value is about 0.8 times the number of nominal capacity kw electric motor low rpm motor. No-load current of medium-sized, 4 or 6 pole motor, is the number of motor capacity kw 0.8 times; New series, large capacity, small number of level 2 of the motor, the no-load current calculation according motor electric to the number of "xinda sixty percent less"; To the old, old series, smaller volume, the number of large more than 8 pole motor, the no-load current, calculated on "is a small number of very many kilowatts", namely the no-load current value kw number approximately equal capacity, but is generally less than kilowatts.

Three-phase no-load current of 2.5 0.75 KW motor,what reason be

Two 0.75 KW..Grade 4...380 v...The motor..No-load current is between 2.3 to 2.6...Work environment textile factory..'a lot...Rated current of the motor is only 2.2...Normal no-load current is around 1.6..Time machine completely under ac electric motor the condition of no load over current...Due to the current big.So high temperature sharply born..Will soon..Overheating damage..Do not say the reason...thank you Problem complement: I thank two answer first..Disease,and together,the two are not normal before..In a few years later.You'll find the bad one current is increased.[.Repair of the motor are friends.Eliminate offline ribbon..] ...Until now,with or without load..Motor current wholesalemotor.blogspot.com is bigger...Last year when the motor current in 2.0 A..Now 2.4-2.5 A...Motor shaft sleeve inside and outside in good condition...Have not completed...Don't go...Only electricity pilot time to run the old hot..Often the temperature in the 60-80 degrees...Wiring is right...Are the normal installation... 


There is a reason,is you pick the wrong wiring.380 v y connection.You make into 380 v delta connection.So,motor heat quickly.This is one magnetic generator of them.In addition,the machine is idle for a long time,must have certain load.If it is in use for a period of time after the scenario (excluding intervention had gone wrong),should be the result of mechanical failure.1 bearing damage increase torque resistance.Run 2 bearing outer ring,which leads to the bearing wear gaps (cover),the rotor eccentricity running and friction with the stator (boring),increase the electric motor 12v 500w torque resistance.What type of your motor,then measure the core size,what are you friends with line,around a few laps? I help you check it.Is estimated to be between winding insulation damage,it is recommended that you access the winding.

Single polar stepper motor step way

Single polar stepper motor can use three step method: single and double taps,half way.Single shot every time step approach refers to only give a winding electricity,as a result,the rotor rotation,and movement to the ac electric motor permanent magnet rotor winding with opposite polarity alignment position.Double beat way to two winding electricalmotor1.blogspot.com electricity at the same time,thus lead to the rotor rotation,and arrive in two permanent magnet electric winding the middle point of balance.Double shot method has the advantage of get 41.4% more than single permanent magnet generators for sale racket can output torque,but the price is twice cost in energy,because it has two phase winding electricity at the same time.Finally,make the way to work,let two winding alternately in electricity power with a single winding way.Half way of the output torque is smaller than double film method,with the design 3 phase motor is different,between 15% - 30% of change,but it can get double way clap twice stepper resolution steps (twice a week).Given in table 1 and table 3 under the three step way winding process of electricity.To make a stepper motor reversal reverse can just put the electricity process.

After motor starting speed is lower than the rated speed:

If several motor also appear such problems tend to power grid voltage is too low.If an electric motor parts electric motor starting a buzz and some vibration,to check whether the stator winding is a power,whether can measure three phase current balance and a buzz vibration check whether the three-phase voltage is too low,but not when no-load motor speed is normal,and the permanent magnet motors for saleloaded speed down.Check the steps: First will start motor racing,such as rotating speed is normal,can clean the motor with light load,such as low speed,load mechanical parts have cut living phenomenon,if no fault in the mechanical parts,motor speed not reduce,can make the motor in the rated load within the scope of operation,if the motor speed dropped,give a person a kind of not move feeling,it is proved that motor has a fault,the cause of this failure is that the extended delta connection of single phase capacitor start induction motor motor into a star,squirrel www.facebook.com/guohong.trading cage rotor broken bar,if it's just around the motor,is likely to be a very like a phase.