Dynamic testing

small motor spares suppliers of motor parts 

Specifications
1.20 years fan&motor manufactruer 
2.We can open mould&punch&diecast&finish&winding 

3.competitive price,high quality 
Dynamic testing after normal in the static test result for dynamic test, namely the three electric motors phase induction motor electrical commissioning. Before and after the electricity must pay attention to the following: 1, the water pump price electricity before, must confirm whether the input voltage is wrong, the 380 v power 3 phase induction motor access to 220 v level of frequency converter ac synchronous generator will be Fried machine (Fried capacitors, varistors, module, etc.). 2, check the inverter after sowing mouth has been properly connected, whether there is loose connection, connection exception can sometimes lead small diesel engine to frequency converter failure, serious when a frying machine, and so ac synchronous generator on and so forth. 3, detect fault display content, such as transistors and preliminarily concluded that the failure and the reason. 4, such as fault, not shown first to check whether there is Electric motor abnormal parameters, and the parameter after resetting, the no-load without (motor) start frequency converter, and test the U, V, W three-phase output voltage value. Such as a lack of phase, three- phase imbalance, and so on and so forth, a fault module and driver board, etc. 5, the output voltage is normal (without acmotor2.blogspot.com phase, three-phase equilibrium), under the condition of load test. Test, it's best to full load test.

Stepper motor and ac servo motor performance comparison of different control precision

 Two-phase hybrid stepper motor step Angle is 3.6 ° and 1.8 °, 5 phase hybrid stepping motors interval Angle is 0.72 ° and 0.36 ° in general. electric motor single phase motor There are also some high-performance stepper motor step Angle is smaller. Such as cross company produces a kind of stepping motor for wire walking machine, where the step Angle is 0.09 °. BERGER LAHR company in Germany (BERGER LAHR) production of three-phase hybrid water pump price stepping motor where the step Angle can dial the code permanent magnet generator switch is set to 1.8 ° and 0.9 ° and 0.72 ° and 0.36 ° and spare parts 0.18 ° and 0.09 acmotor2.blogspot.com ° and 0.072 ° and 0.036 °, combine www.dongfeng-motor.com the two and five phase hybrid stepper motor step Angle. Control precision of the ac single phase motor servo motor by the motor shaft after the rotary encoder. Panasonic digital ac servo motor, for example, in line with standard 2500 encoder of the motor, drive due to the permanent magnet generator internal used four frequency multiplication technology, the pulse equivalent to 360 ° / 10000 = 0.036 °. For with 17 encoder of the motor, drive each receive 217 electric generator = 131072 pulse motor turns a circle, namely the pulse equivalent to diesel generator set 360 ° / 131072 = 9.89 seconds. Interval Angle is 1.8 ° is 1/655 of the pulse equivalent of stepper motor.

The choice of the fuse

ac electric motor stator copper winding 

Specifications
1. Material: silicon steel  
2. 20 years manufacturing experience 

3. competitive price,high quality 
Fuse is delay and short circuit current of www.facebook.com/guohong.trading the electric equipment overload instantaneous protection. The main categories: fuse are plug-in, spiral, packing closed tube, etc. diesel engine Machine tool that is commonly used in electrical wiring is RLl series, fuse fusing body is the main components (fuse or fuse generator link). Each level of current fuse can be equipped with a variety of different electric current of the melt. Such as ac synchronous generator RL1-100 with 60, 80, 100, a three melt current levels. Choose fuse, in fact the main is to choose the type, rated voltage, rated current of 3 phase induction motor the fuse rated current rating and melt. The fusing current is the key to choose fuse body, the choice of the melt is related to the nature of the load. General could be squirrel cage induction motor selected according to the two methods. 


Small power 3 phase ac induction motor
Specifications
1. 100% Copper Wire 
2. Voltage Tolerance 5% 
3. Aluminum, CE, ISO9001 

4. Factory Price
1. The load is ac synchronous generator stable, no peak current, such as lighting, signal, resistance furnace, etc. 2. The load peak current. Such as asynchronous motor, the starting current is rated current. 4 ~ 7 times. So can't according to the rated current to choose, by empirical calculation method to choose. To the single work for a long time (not often), available to choose the type: for more than one motor has a fuse protection for a long time, use the type to choose: electric control system design - the conversation of the heart - the heart of the dialogue. Type: Iemax capacity of the largest rated current of motor; In addition to the largest motor capacity, the sum of the rest of the motor rated current. If a few electric motor fails squirrel cage induction motor to alternator generator start at the same time, the Im for the largest capacity of an electric motor starting current, coupled with each other the rated current of the motor

IPM design frequently encountered a few problems

AC induction cooling fan motor 
Specifications
1. Customised 
2. good quality 
3. 20 years manufacturing experience 

4. Altitude: ≤1000m

 Compared with the discrete component, module in addition to the well-known advantages (smaller, more reliable, and can be treated as a single element), IRAMS16UP60A module also enables designers to avoid the frequently encountered in the design of IGBT inverter a few questions: 1) module has a very low inductance circuit, can reduce the generator set spare parts voltage spike, can work under low switching loss in high switching frequency; (2) all low-end and high-end IGBT transmission delay matching, can prevent the dc current to the motor; (3) built-in dead time control dead zone provides enough time to prevent wholesalemotor.blogspot.com the high-end and low-end IGBT IGBT shortcircuit; (4) fail safe work to ensure that lamination through the pressure when the downtime, the over-current and over-voltage protection circuit designers don't have to design; (5) provides temperature monitoring and phase current detection of pins.