XGATE application and working principle - the CAN gateway

full load 75% load 50%load three phase induction electric motor Y series B35

Specifications
-One year warranty 
-Within 25 days delivery 

-Life: 5-7 years 
CAN often encountered in fan motor the gateway in the industrial system is the typical form has two CAN network topology. XGATE CAN help to synchronous generator generator set generator achieve the double CPU CAN the function www.dongfeng-motor.com of the network. XGATE can offer 100% software filtering through the induction motor prices look-up table. In each of the 100 mu s receives a frame information (including 8 bytes per frame information and 29 identifier), for 8 bit or 16 bit MCU, the double CAN network topology control is very important. XGATE can decrease the pump parts rate of CPU load, CPU 258 - byte code is approximate generator rotor and stator to zero load. For a 6 single phase 3 hp motor bytes of data CAN information, XGATE processing every frame coding needs about 3 mu s, the worst AC motor case CPU load rate is only 6%.

The motor rated current simplified

Alibaba China Suppliers!!Export aluminum electric motor casing
Specifications
1. a replace of Y motor 
2. larger output 
3. save energy 

4. Delivery Detail:within 30-35 days after receiving the deposit
Simplified formula: (1) the motor rated current (A) : "double motor power", generator namely "A kw two amps. Usually refers to the commonly used 380 at about 0.8 v, the power factor electric water pump of three-phase asynchronous motor diesel engine, "kw number plus one times the rated current of the motor. (2) empirical formula: the motor rated current (A) = motor capacity (kW) x 2 the simplified formula and empirical diesel generator set formula is the use of single generator set phase induction motor the result is consistent, the rated current and calculate the motor nameplate was very close to the actual current values, conforms to the practical requirements, A Y132S1-2, 10 kW motor, for www.facebook.com/guohong.trading diesel engine ac motor example, using the simplified formula or empirical formulas calculate its rated current: 10 x 2 = 20 A.

Motor wiring

 China export motor lamination shaft rotors 
Specifications
1. Lamination of electric motor 
2. IP54 class F 
3. 100% copper 
4. Silicon steel stamping 
5. Stunning performance
Motor wiring mantra: www.dongfeng-motor.com "1.5 plus two, plus three" 1.5 "after the four plus four, six plus six," "increasing after 25 plus five, after 50 minus five" 102 conductor, the best number "the mantra diesel engine is equipped with wire directly based on the three-phase 380 v ac motor capacity." 1.5 plus two "said 1.5 was copper, plastic wire, can go with 3.5 kW and the following motor. Because of the 4 kW motor selection of close to 3.5 kW use scope, and the formula has certain allowance, so the quick table 4 kW motor under the selected conductor take 1.5 was." After 2.5 plus three ", auto spare parts "four plus four", said was 3 phase induction motor 2.5 and 4 was the copper plastic wire to auto spare parts respectively 5.5 kW, 8 kW motor." After six plus six, "said from the beginning of the 6 was, with the" increase 6 kW motor. 


full load 75% load 50%load three phase induction electric motor Y series B35
Specifications
-One year warranty 
-Within 25 days delivery 

-Life: 5-7 years
"that squirrel cage induction motor was can match 12 kW, choose similar specification with 11 kW motor. 10 was 16 kW, choose similar specification with 15 kW motor. 16 was 22 kW acmotor2.blogspot.com motor can match. The middle and 18.5 kW motor, also copper plastic line 16 was chosen." After 25 plus five ", it is said from 25 was addend from six to five. 25 was 30 kw electric motor can match. 35 was 40 kw can match, choose similar diesel generator set specification with 37 kw motor." Increasing after 50 minus five ", it is said that since 50 was made up into a reduced, and it is increasing step by step to lose five. 50 was 45 kw motor can be produced (50-5). 70 was can match up to 60 kw (70-10), select similar specification is equipped with 55 kw electric motor. 95 was can match 80 kw (95-15), choose similar specification with 75 kw motor." 102 conductor, with the number ", magnetic generator it is said that 120 was the copper plastic wire can match 100 kw motor, phase selection specifications namely 90 kw electric motor.

The requirements of the asynchronous motor startup and types

 AC motor aluminum 2800 rpm motor fan cover 
Specifications
1. Customised 
2. good quality 
3. Surface treatment: Galvanize 
4. AC motor 
The requirements of the asynchronous motor starting 1, starting torque of motor is large enough. 2, on the premise of certain size starting torque, starting current as small as possible. 3, starts the required equipment is simple, easy to operate. 4, rotor power loss in the process of start as small as possible. Squirrel-cage asynchronous motor start. Direct start that start with voltage on the stator winding of the motor rated voltage. Three-phase asynchronous motor direct start (a) meet the conditions of electric motor parts 1, capacity under the 7.5 KW motor can be used. 2, motor at starting moment www.dongfeng-motor.com caused by the power grid voltage diesel generator set drop is not more than 10% of the power supply voltage is normal, for not often small diesel engine start three phase induction permanent magnet lamination machine generator motor the motor can be up to 15%. 3, available empirical formula rough estimates whether the permanent magnet generator motor can electricalmotor1.blogspot.com be directly started. Advantages: the boot device is electric generator simple, the startup time is short, starting operation simple, reliable, the cost is low. Disadvantages: the motor and power grid has a certain impact.

Refrigerator take time to add liquid cooling method Refrigerator take time to add liquid cooling method

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
For refrigeration equipment repair, time is the second step of the general fault maintenance. The first is to suppress (not including the compressor or change tube) in determining the pipeline without leakage, the next step is to fit. There are two commonly used methods: 1, use the vacuum pump. You can also use a compressor to replace the vacuum pump. Time is longer than generator price with the vacuum pump is a few longer, because of the relative likelihood () compressor exhaust two (amount) to some smaller than vacuum diesel engine pump. On the fridge process pipe connected to a job with a pressure gauge valve, one head welding on the compressor, the other end with a liquid pipe connection on the vacuum pump, open the table method (valve) the door, start the vacuum pump or external compressor, start time, when there is no gas discharge vent on the vacuum pump, took over. 2, to use own compressor to itself. This method is very suitable for go out to repair, need not with vacuum pump. The method is: if the filter is on double tail, mouth open work (the original is www.dongfeng-motor.com welding die), start the compressor, there will be a lot of air from the mouth, when the mouth no gas discharge, the mouth with the hand, unplug the power supply. (be sure to pay attention to safety) open the charging the practice to the system such as refrigerating fluid, when the filter working gas discharge. In the mouth of tongs death, gas welding is used after sealing the mouth.???? 


motor lamination three phase induction wound rotor 

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

5.stunning performance
Add liquid small diesel engine cooling: cooling liquid, add fluid tube, table after the valves are connected, open the charging the practice period of open (loosen) the end of the charging tube when the tube had cooling liquid discharge head, tighten the method of block (LAN). Open the table on the compressor valve, had better add liquid cooling liquid cylinders upside down, ac synchronous generator when the table shows 4 diesel generator set kg pressure, close the charging valve. The refrigerator electricity, then the pressure of the table with the work single phase induction motor of machine down. When the clock stability have a look at the pressure, generally between zero point three to zero point 8 belong to normal pressure. The static plus 4 kg is based on the refrigerator when the low pressure of static pressure is 4 times at work. As the refrigerator working time increased, the temperature in the oven has been falling, filled volume of the normal, running after a period of time on the muffler should meet (knot), temperature and environmental temperature is the same as the filter or a touch more heat for exactly. If acmotortrading.blogspot.com on the muffler by frosted) (cooling fluid add much, off some, open the charging valve slowly, let while observing muffler, see the frost charging valve shut. If a long time running back up the (gas) pipe temperature is not cool or without dew, open the charging valve and adding some refrigeration fluid. Practice has proved that the choice of low voltage motor fuse and maintenance fuse for low voltage motor phase short circuit, single phase short circuit fault and squirrel cage induction motor overload protection device is simple and effective. But if the fuse type and parameter selection, improper or disadvantage in operation and maintenance, also can not meet the expectations of protection.

The use of the insulation resistance meter megohm meter method 2

AC Electric motor Plastic fan parts 
Specifications
1. Customised 
2. good quality 
3. 20 years manufacturing experience 
4. Delivery Detail: 20-35 days after receiving payment 
Terminal of the table there are three: one for the "L" or terminal, an "E" is the end, then a "G" (also called protection ring) shielding end, generally measured insulation resistance connected between the "L" "E", but when measured insulator surface leakage is serious, must shield ring of the articles will be tested or not measured part with "G" at the connection. This leakage current is by shielding small generator the "G" flowing to the negative side of the generator to form circuit directly, rather than through the measuring mechanism of megger (moving coil). Thus fundamentally eliminating the influence of surface leakage current, especially should pay attention to is measuring cable insulation resistance between the core and appearance, be sure to pick a good shielding terminal "G", because when air humidity is big, or the surface of the cable insulation and not clean, the leakage current will be very big, on the surface of the analyte to prevent due to the leakage of the impact of the internal insulation measurement, generally in the cable looks to water pump add a metal shield ring, connected with the "G" end of the megohmmeter. 


Totally Enclosed Protect Feature and Three-phase Phase low rpm ac electric motor
Specifications
Specifications1.3-phase asynchronous motors 
2.IEC standard 
3.OEM 
4.Voltage:50HZ &60HZ;380V&415V 

5.Protection class: IP54 
When using the shake test electrical equipment insulation resistance by megger are, must notice to "L" and "E" can't meet the, the correct connection is: "L" line terminal equipment under test conductor, "E" grounding terminal equipment shell, "G" shield termination insulating part of the device under test. If the "L" and "E", through the insulation leakage through the shell on the surface of the body and converge to the ground by the "L" to flow into the measuring coil, lose "G" shielding effect and bring great error measurement. In addition, because the Three phase motor "E" internal fuses with the insulation of the shell is much greater than "L" lower end and the degree of insulation shell, when on the ground by megger use, when the correct connection mode is used, the "E" end of instrument shell and the shell of the insulation resistance to ground, equivalent to a short circuit, will not result in errors, and when the "L" and "E" after the "E" of the insulation resistance measured insulation resistance in parallel with, smaller and make the measurement result, bring bigger error measurement.

Current transformer, transformer principle

AC fan cooling motor fan cover 

Specifications
1. Customised 
2. good quality 
3. Surface treatment: Galvanize 

4. Type: Motor Cover 
Large and small current in the power supply electric circuit voltage difference from several to tens of thousands of AnDouYou Ann. For convenience of secondary instrument measuring need into a more uniform current, in addition line voltage is high, such as direct measurement is very dangerous. Current transformer is current 3 phase ac induction motor transformer and electrical isolation effect. Earlier, most of display instrument is a pointer type current meter, so the current transformer secondary level most of the electric current is the ampere (e.g., 5 a, etc.). Now wholesalemotor.blogspot.com most of the power measurement, digital and computer sampling signal is commonly milliamperes (0 to 5 v, 4-20 ma, etc.). Micro ct (current transformer) secondary current as milliamperes, between the main transformer and sampling. Micro current transformer has also been called "instrument use current transformer". (the instrument with a current transformer with a layer of meaning is using more current than Induction motor the precision of the current transformer in the laboratory, is generally used electric motor in expanding instrument range.)

General converter electrical engineer to teach you the overcurrent

General converter electrical engineer to teach you the overcurrent protection and treatment methods Overcurrent protection function of the frequency converter is a very important role in the frequency converter,the following introduce you to the cause of the over current and processing method Frequency converter in the overcurrent protection object refers to with paroxysmal qualitative,peak current,exceeds the permissible value of frequency converter.As a result of the inverter device overload ability is poor,so frequency converter overcurrent protection is a vital link,so far has been very perfect.(1) the cause of the over current A.over current work The current system appeared in the process of work.The reason for this is roughly from the following aspects: A) motor encounter impact load or drive mechanism to the sudden increase of motor current phenomenon of "stuck".B) inverter output short-circuit,such as the connecting line between the output to the motor motor internal short circuit or short circuit,etc.C) inverter itself is not normal work,such as two of the same bridge arm in inverter bridge inverter device in the process of alternating work abnormal.For example due to environment temperature is too high,or aging,the inverter device itself to change the parameters of the inverter device,cause in the process of alternating,a device has been conducting,and another device but also in the future and shut off,causing the same bridge arm of the upper and lower two parts of "straight",the dc voltage between the positive and negative in the short circuit state.

B.over current acc When the load of the large inertia,and set up time and too short,means in the process of advance,the working efficiency of the converter rise too fast,the synchronous speed of the motor because of the large inertia load and couldn't keep up with,and the result is acc current is too big.induction motor price C.over current slow down When the load of the large inertia,and slow down the time set too short,can also cause overcurrent.Because of the slow down,the time is too short,synchronous speed drops rapidly,due to the load and the motor rotor inertia is big,still maintain a high speed,then the same can be the speed of the rotor winding cutting lines of magnetic force is too big and over current generation.(2).Treatment methods A -.When starting A liter of tripping speed,this is very serious phenomenon over current,major inspection (1).Working machinery have stuck (2).Load side if there is any short circuit,check over the ground by megohmmeter for short motor fan circuit (3).The inverter power module if there is any damage (4).The starting torque of the motor is too small,the drag system turns up B.starting without tripping immediately,and tripping in the operation process,the main check: (1).Set up time is too short,longer acceleration time (2).Deceleration time setting is too short,longer deceleration time (3).Torque compensation (u/f ratio) set too big,cause the low frequency time load current is too large (4).Improper electronic thermal relay setting,current action set is too small,misoperation caused by frequency converter

Motor vibration

Motor through a transmission mechanism is connected to a machine.motor vibration can ac

electric motor result in mechanical vibration.mechanical vibration also can make the motor vibration.motor and mechanical transmission part release to start the motor.if eliminate vibration is a mechanical failure.or is the motor vibration.vibration reasons:the diesel generator motor seat is not firm.mechanical part of the motor and the driven generator rotor and stator shaft are different.the motor rotor imbalance.motor shaft bending.belt wheel spindle eccentricity.squirrel cage several breaks.bearing damage.unbalanced electromagnetic system.www.dongfeng-motor.com electric JiSao chamber.

The working principle of numerical control instrument lathe

Numerical control instrument lathe using fast clamping collet chuck, direct drive power electric motors spindle motor, the size of the disc quickly operating lever type, the vertical and horizontal to the positioning control turning, part of the instrument lathe with the installation of flange, tailstock, die with threading device, can processing and outer circlea and inner circle, cutting, end face, cutting groove, tapering, drilling, reaming, tapping screw, milling, grinding, etc. Widely used in electrical electric motor cooling fan appliances, fasteners, automotive, motorcycle accessories, instruments and meters, hardware appliances, stationery, film and television equipment, mechanical and electrical products, plumbing pipe fittings, valves, bearing ring, axial and other small parts, glasses manufacturing production and processing, and other small workpiece is the most ideal high-efficiency equipment hardware machinery processing industry. Because use hand push feed, fast clamping collet chuck, plunger type limit device, a quick hand plate, motor direct drive spindle running, turning, positioning control of a single continuous processing fixed kinds of artifacts and appearance, and improve working efficiency 10 times more than ordinary lathe, especially suitable for large quantity, small parts processing. But instead of other machine tools, to save the energy.

Three-phase asynchronous motor connector

A change, triangular connection motor y connection Normal operation by delta connection of three-phase asynchronous motor, in order to reduce power use, can take three phase electric fan motor parts windings into star after online on the power supply voltage of 380 v, about 34% of the rated power is the power of the motor. For example, the 380 v delta connection 10 KW three-phase asynchronous motor to change into a star, meet online voltage of 380 v three-phase power use, at this time the power output of the motor is about 3.4 KW. Second, the three-phase asynchronous motor single-phase asynchronous motor Y connection and delta connection of three-phase motor changes the same way. Open the three-phase asynchronous motor terminal box, between any two phase power terminal access to a capacitor. The capacitor between V1 and W1, for example, it is at this point to connect single-phase power supply between the U1 and V1 or W1 (assuming the power of connect between the U1 and V1 motor, the power supply in U1 and electric opportunity inversion between W1,) can transform the original three-phase asynchronous motor converted a single-phase asynchronous motor. This method is especially suitable for no occasion of three-phase power supply using three-phase asynchronous motor. The capacity of the capacitor C = KP obtained are available, and where C is the capacity of the capacitor, the unit is the micro method (u F); P is the power of the motor, the unit is a kilowatt (KW); K is the empirical coefficient, take 0.06 when y-connection three-phase asynchronous motor, triangle sexual connection for 0.1. For example, 10 kw three-phase asynchronous motor when the star connection KP = C = 0.06 x 10 = 0.6 u F; 10 kw three-phase asynchronous motor triangle connection KP = C = 0.1 x 10 u F = 1. Changed to: after instead www.dongfeng-motor.com of capacitor terminals, such as the case of U1 power cord, another power cord by V1 connector on the W1 can realize inversion, the inversion of the inversion principle of single-phase asynchronous motor with the same principle Connect power: after the change is a single-phase capacitance motor, its effective power is 70% of the original motor power, for example: 10 kw three-phase asynchronous motor connector into effective power single-phase capacitor motor is about 7 kw. Convert into single-phase capacitor start motor, its effective power is 40% of the original asynchronous motor motor power, for example: 10 kw three-phase asynchronous motor connector into effective power for 4 kw single-phase capacitor start motor. To pick up after each phase winding voltage for no more than the rated voltage of the winding. What kind of motor depends on specific convert into being dragged the power of agricultural machinery. When convert into single-phase capacitor start motor, need to add one more time relay, wiring method is: put the time delay of time relay to disconnect the instantaneous closure in series capacitor circuit, the normally closed contact of time relay coil in parallel on both ends of single-phase power supply (time relay coil of the rated voltage is the same as the power supply voltage). After connected circuit, adjust the delay time of time relay, can work normally. Its working principle is: when switched on, time relay and motor for electricity at the same time, the capacitor circuit switched on, the motor starts, when the speed reached about 80% of the rated speed (implementation) by adjusting the delay time relay time delay disconnect instantaneous closure of time relay normally closed contacts disconnect, cut off the capacitor circuit, motor function.