Measuring rotor winding connection is wrong use method of failure

Put the rotor under small electric fan motor test in a test in the mouth,use the turn-to-turn short circuit tester electricity,tester within the closed magnetic circuit core and rotor core has alternating magnetic flux.Multimeter is 10 v ac voltage profile,wholesalemotor.blogspot.com adjacent commutator segment and commutator segment,every piece of commutator segment,every two pieces of commutator segment,every three to every more pieces commutator segment between the voltage value.Rotor winding connection correct voltage size should electricalmotor1.blogspot.com be consistent,if you have below normal,it is possible that some components lead to reverse,with the fault of rotor winding to repair to meet again. "Little experience" Described above with a multimeter ac 10 v voltage profile measuring voltage between adjacent the commutator segment,as there are below normal,should turn the rotor position,and then look at the voltage value,so as high efficiency electric motor to avoid miscalculation.If still below normal,should be cleaned of mica slot commutator conductive material (such as charcoal powder),then test again,in order to avoid miscalculation.

Motor development history

Motor development www.dongfeng-motor.com history In 1835,produced the world's first can drive small traction motor of the application of a blacksmith in the United States of Wen Bo (Thomas Davenport).In the early 1870 s,the world's first commercial motor by the Belgian electrical engineer Zenobe Theophile Gamme invention.In 1888,a famous American inventor nikola tesla used Faraday electromagnetic induction principle,ac motor,the invention is the induction motor.In small electric motors 1845,British physicist,hui tu (Wheatstone) to apply for the

patent of the linear motor,but the principle in the 1960 s were seriously,designed the practical

linear motor,the current has been widely applied in wholesalemotor.blogspot.com

industry.In 1902,the Swedish engineer Dan nelson use tesla of stator a rotating magnetic field induction motor,synchronous motor was invented.In 1923,the Scot James Weir French invented type three-phase Variable reluctance (Variable reluctance) stepper motor.In 1962,through the help of hall element,a practical DC brushless motor has finally come out.In the 1980 s,the utility of ultrasound motor begins to come out.