Master electrical troubleshooting method 2

 electric motor 20hp aluminum body 
Specifications
1. 20 years manufacturing experience
2. competitive price,high quality
3. Brand Name: FUJIAN DONGFENG MACHINERY ELECTRICAL LIABILITY CO., LTD

Faults exclusion is an important work of maintenance personnel, to eliminate the fault, must know the cause of the failure, more important is can theoretically analysis, solve the fault occurred, should have certain professional theory knowledge, to master the methods of troubleshooting. (a) current test method: test method is usually in the measurement circuit current conformed to the normal, a method to determine the cause of the electrical motor 12v 1000w problem. For low voltage circuit, often use the ammeter or multimeter current file concatenated in circuit to measure; For high voltage circuit, often using clip-on ammeter test. (2) the instrument test method: with the aid of all kinds of instruments to measure ac electric motor various parameters, such as using oscilloscope to observe the waveform and the change of the parameters, in order to analysis the cause of the failure, much used in low voltage circuit. 

 Y series best cast iron three phase induction motor
Specifications
1. 20 years manufacturing experience 
2. 12 months guarantee 
3. low noise and temperature rise 
4. high starting torque 

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

(3) the conventional method: rely on human sense organs (such as: some burning in the electrical equipment in use, the smell of burnt food lighter, discharge phenomenon, etc.) and with the aid of ~ simple instruments (e.g. multimeter) to find the cause of the problem. This method is the most commonly used in maintenance, is also used in the first place. (4) to replace the original accessories: in doubt a device or circuit board is faulty, but not sure, and there are alternative parts, alternative test, to see whether the fault disappear, returned to normal. (5) electricalmotor1.blogspot.com direct method: to understand in the cause of the problem or according to the experience, judge the location of the failure, can be directly check suspect point of failure.

watt

The power unit of the international system of units.Watt is defined as 1 joule per second (1 j/s),namely every second transformation,use or dissipation (in the) of joule for measurement of the rate of energy. In the electrical electric fan motor system of units,the volt by ampere (V (A).More commonly used in everyday life-kw as a unit,1 mw = 1000 watt.Unit conversion: watt by a British scientist to make a significant contribution to the development of the steam engine was named after James watt.The name of the entity in the first 1889 adopted by the 2nd meeting of the British association for the advancement of ac induction motor 110kw science.In 1960,the international conference on measurement 11th meeting in watts of power in the international system of units (units.People commonly used power unit multiplied by the unit of time to represent the energy.For example,1 kw? R is a power of 1 kw of energy consumed energy wholesalemotor.blogspot.com consumption equipment in 1 hour,is equal to 3.6 million joules.The commonly used formula W = UIT; W = P * T Network watt is small electric motors English words on the water (water).Such as the brain watt,it means that thinking."W" and "bad" in the Shanghai dialect pronunciation similar.

The power output

Power output is on-board host to the speaker output audio signal power and the number of channels,usually with each channel output to indicate the power multiplied by permanent magnet generator the number of channels.On-board host in the car audio system similar to the original function of DVD home theater,but inside the car space is precious,so integration is electrical motor very demanding.In order to satisfy the space requirements,many car the host with the function of the power amplifier,of course,not all on-board host with amplifier function,if there is no power output,then it must be with connect car-mounted function www.facebook.com/dongfeng.motor of the power amplifier.To be sure,with the power output of the host can be connected directly to the speaker,but most of the host also can connect an external amplifier,unlike home theater VCD,host of the pre - the electrical motor 24v output voltage is higher,so the different host to the requirement of the power amplifier,when the choose and buy should pay attention to collocation.

The role of small power motor

Motor as an ac synchronous motor important device of electromechanical energy conversion,is the basis of the electric drive

components,its power consumption occupies more than 60% of the total electricity consumption,to the national economy,energy,environmental protection and the improvement of people's living quality plays a very important role.Therefore,development of high efficiency,energy saving,consumption

reduction,high reliability,small power motor products,recommend a batch of product technology high quality and good market reputation famous quality products to the customers at home and abroad choose

small power motor,creating a national brand motor products,enhance the international

competitiveness,to ensure the sustainable development of national economy is of www.dongfeng-motor.com great strategic

significance. With the rapid development of science and technology and the continuous improvement of

people's living standard,all kinds of motor in the industrial automation and the life of people work

is to play a greater role.Small power motors as a driving source,they are widely used in the

development of world economy occupies a more and more important position,the industry for rapid

development of traction many industrialised countries economic development plays an important role.As household appliances and small power motor car mechanical and electrical energy conversion and the core of the degree of automation to improve drive execution parts,motor performance indicators

related to directly determine the performance of household electrical appliances,equipment and

technology level.It is not only the power of industrial equipment,but also the modernization of

life.Motor quality and advanced levels also reflect a country's automation level indicators,motor

quality decides the quality of life of people and the country's industrialization level. 

Domestic usually according to the power of the motor can be divided into large motor,small and medium-sized

motor,small power and other three categories.With the deepening of the reform and opening up,our

country joining WTO,and the transfer of world manufacturing center of gravity is to China,China has become the world's small power motor manufacturing base,small power motor output accounts for more than 60% of the world total.Therefore,seize the favorable development opportunity,realize the industry restructuring,build national brand of electrical products,enhance the international

competitiveness,has become an important subject of our country's motor industry. Basis "electrician

noun predicate GB2900.27-1995 small power motor" standard definition,small power motor is equivalent to 1500 r/min,the maximum continuous rating of no more than 1.1 kW motor,which motor 1.1 kW and below

are collectively referred to as "small power motor",it contains the people often say "fractional

horsepower motors" and "micromotor.Because it is so intertwined with the lives of the people,have

been listed in the national rotor balancing machine compulsory certification.There are many different kinds of small power motor,can be roughly divided into three phase asynchronous motor,three-phase electric pump,washing machine motor,air conditioner fan motor,etc.27 classes. Small power motor is an important basis of mechanical parts and smart actuators,most of the products in the industry are listed in the national focus on encouraging the development of the industry,product and technology directory,conform to the requirements of the informatization spurs industrialization development,by the national industrial policy support,in line with national development direction of industrial structure.