The starting current of the machine

 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
The motor starting current is www.facebook.com/guohong.trading not a fixed value, in the process of motor starting, from big to small changes in the current, is the reciprocal function of time (I diesel engine = I + I/(a - t)). There is no specific formula. diesel generator Basic not just plug in the electrical impedance, only impedance, also is the dc resistance of the coil, this number is very small, so the instantaneous current is very big, can be rated current of dozens of times, but the duration is very short, usually only zero point zero seconds. As the rotating motor, a sharp drop in the auto spare parts current, if not on load 3 phase induction motor startup, will be in 1 seconds to around 10 times the rated current, along with the speed rise, after 2 single phase motor seconds can be down to 2-3 times, then continue to fall, until it is equal to the rated current, the motor speed also rose to rated speed. 

TYG series rare permanent magnets three phase synchronous motor
Specifications
1. a replace of Y motor 
2. larger output 

3. save energy
So, motor starting current is refers to the average. Because different machine, different load and different ways of start, start time required is not the same, there is big difference between the average current. For large motor, you need to start the process of current time function for diesel generator set detailed calculation, to determine the circuit breaker protection fixed value setting. Generally small under 40 kw motor, is does not provide protection for the boot process, so the choice of circuit breaker, so long as can avoid starting current impact. Due to the action of circuit breaker is time-limited, 4 to 7 times the rated current, no-load start to choose lower limit, with maximum load startup options. The star - Angle start, start current 1.7 times lower magnetic generator than direct start, but the duration should be longer, switch to the Angle, the current changed little.