The squirrel-cage asynchronous motor startup (a) direct start

ac electric motor stator copper winding 

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

3. competitive price,high quality 
The startup and voltage on the www.facebook.com/guohong.trading stator winding of the motor rated voltage. Three-phase asynchronous motor direct start (a) meet the conditions of 1, capacity under the 7.5 KW motor can be used. 2, motor at starting moment caused by the power grid voltage drop is not more than 10% generator price diesel generator of the power supply voltage is normal, for not often start the motor can be up to AC motor 15%. 3, available empirical formula rough estimates whether the motor can be directly started. Advantages: the boot device is simple, the startup time is short, starting operation simple, reliable, the cost is low. Disadvantages: the motor and power grid has a certain impact (2) the step-down start. The voltage on the stator winding of the motor is started to reduce, start at the end of the rated voltage of the startup mode. Step-down starting may help reduce motor starting current, but due to the torque is directly proportional to the square of the voltage, so the step-down startup motor torque decreased is more, reason is only applicable to start no load three phase diesel generator set induction motor or light load. 


Electric Motors 1 HP 3PH

Specifications
1. Shape: squirrel cage
2. CE.ISO CCC 
3. Side Terminal Box 
4. Free Foot Mounting 

5. 100% copper wire 
N autotransformer (also called compensator) step-down start n star - triangle (Y - Δ) step-down start n extended delta start n (or reactance) step-down starting resistance. 1, autotransformer (also called compensator) step-down start wiring: (1) high pressure side of the diesel generator set autotransformer into power grid, the low voltage side connected to the motor, there single phase induction motor are several different voltage than tap to choose from. (2) features: set autotransformer change ratio of K, the original side voltage of U1, U2 = vice side voltage U1 / K, vice edge current I2 (that is, through the line current of the motor stator winding) also according to the proportion is reduced, and because of I1 = I2 / K, ac synchronous generator the power supply of the motor starting current is directly 1 / K2 times when it is started. 1 / K times due to lower voltage, torque reduced to 1 / K2 times. Autotransformer vice edge from two to three groups of tap, such as secondary voltage of primary side voltage respectively 80%, 60%, 40%. Advantages: can be according to allow the starting current and starting torque required for different tap to choose autotransformer achieve step-down start, use Y or Δ stator windings. Weakness: the equipment is big, the investment is more expensive.