The dc grounding method 2

Multipoint earthing: ground wire of each system USES more short wire grounding method, called the multipoint earthing. When a signal or a high frequency of electromagnetic interference or using fast logic, coupling capacitance coupling effect will produce some kind of interference, then lead length become the main contradiction, multipoint earthing must be used to minimize the series impedance, and to minimize the standing wave. Multipoint grounding method is applied to the high frequency circuit (f > 10 MHZ). Before two hundred and thirty, interference is called radio frequency interference, because most of the noise and interference signal from the radio frequency. Today the electronic computer, digital technology and logic circuit constantly expand the application field, the interference is known as the electromagnetic interference (emi) now. Electromagnetic interference including conductive electromagnetic interference, the interference energy sent through a wire or cable from one circuit to another circuit. Reduce the conductive electromagnetic interference is through reasonable design of the circuit, filter acmotor2.blogspot.com and rational grounding circuit is used to realize; 

The radiation electromagnetic interference of the energy is transmitted through the electromagnetic field in air. In the design of casing and casing, by choosing reasonable shielding materials, single phase asynchronous motor construction technology and equipment arrangement and the reasonable grounding technology and so on to reduce the radiation electromagnetic interference. Which deal with grounding engineering is the most important technical measures preventing electromagnetic interference. Most of low frequency interference is coupled to each other through the line, the previously mentioned common impedance coupling. When two circuit electric current flows through the same public impedance of a circuit when the current is 5kw permanent magnet generator formed on the impedance voltage will affect the www.dongfeng-motor.com other circuit, which is common impedance coupling. If a common grounding network in different places respectively connected to the attachment. Due to the common impedance coupling relationship, the attachment will be Vg1 and Vgz voltage between the connection of the ground voltage is not the same. Vg1 and Vgz is interfering voltage, after amplification could directly affect the communication or control signals. Multipoint grounding allow there is a lot of the advantages of the loop, then at the same time, use of low frequency circuit can be harmful, if you have the above situation, can consider to adopt the method of mixed ground.

STB high performance permanent magnet synchronous servo motor

(H) series product categories:low speed permanent magnet generatornumerical control system,the feature-motor and servo motor drive-product parameters:Product brand:other product overview:compared with induction servo motor,synchronous servo motor has higher dynamic performance,more energy-efficient,and better Low speed torque characteristic and control characteristic,guides the technological change in the field of industrial machine,in order to comply with the demand of the market,fu tian motor in full Research of the customer's requirements,analysis,product development trends,and fully study the international first-class product technology,on the basis of developed STB and STH series big moment Servo

synchronous motor series,production enterprises:Shanghai fu tian motor manufacturing co.,LTD.Product advantage:with the technology of industrial machine from all walks of life Upgrading,more and electric motor cooling fan more ordered its main power motor satisfy the premise of powerful driving moment,but also more rapid dynamic response ability and high precision Ability,to improve the automation of machine function,improve the efficiency and capacity of the machine work,and to promote the quality of the product,in this case,a For the combination of torque and servo power requirements type wholesalemotor.blogspot.com servo motors are produced.Spatially-integrated SVS,STB (H) series,motor is suitable for such a demand of electricity Machine type products,under the rated speed,synchronous series products compared to the STB (H) series of products with tis servo characteristics,but in the weak magnetic speed Period,the characteristics of the STB (H) series of products is superior to synchronous motor series.Compared with induction servo motor,synchronous servo motor has higher dynamic performance,More energy- efficient and more excellent low-speed torque characteristic and control characteristic,is to guide the technological change in the field of industrial machine,in order to comply with the demand of the market,Fu tian motor in investigating the development trend of customer requirements,analysis of products,and fully study the international first-class product technology,on the basis of developed STB and STH Series of large torque servo synchronous motor series,emphasize on designed high reliability and high performance.

Y series three phase asynchronous motor

Y series three phase asynchronous motor,The series of products on the basis of the original Y series,made many improvements in innovation and improving,make the product more optimized,the performance of the structure more reasonable and reliable,in the design process USES the latest design means,such as 3 d design method,the finite element analysis,and so on,its reliability,rationality,this series of motor design has the characteristics of high starting point,high demand,high reliability,the mechanical structure adopted home after a long time to verify the high reliability of the structure,insulation system also wholesalemotor.blogspot.com USES a high standard,high requirement of system,to ensure the motor can run for a long time and not easy ageing,insulation motor service life is greatly increased,the performance parameters are more than the national standard of the corresponding requirements.Y series high-voltage three-phase asynchronous motor technical conditions,the motor adopts box-type structure,frame adopts steel diesel generators prices plate welding and become,light weight,good rigidity.Top of the motor can be installed protective cap,tear open outfit is convenient,convenient maintenance and repair of the motor.Outside being connected structure is used in the stator end have reliable fixed and binding,acmotortrading.blogspot.com in the process of manufacturing after many interturn voltage test and impact resistance of pressure test,and adopts advanced vacuum pressure impregnation process without solvent paint,motor adopts class F insulation structure,according to the assessment of class B temperature,bearing a rolling bearing and sliding bearing two types,depends on the motor power size and speed,can also according to the requirements of the users.According to the order required to provide other voltage,frequency and degree of protection of motor.This series of medium-sized high-voltage motor has high efficiency and energy saving,low noise,little vibration,reliable operation,easy installation and maintenance,etc.Y series high voltage motor is suitable for driving various kinds of general electric machinery such as fan,compressor,water pump,crusher,cutting machine,transportation machinery and other equipment,in mining,mechanical industry,petroleum chemical industry,power plants and other industries as a prime mover,used to drive a blower,coal mill,rolling mill,hoist induction motor motor should be indicated when ordering purposes and technical requirements,the use of special design to ensure reliable motor running.