The starting current of the machine

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 

Rated current for 12 a motor (should be ordinary asynchronous motor), the starting current of 200 a or 227 a is not normal. Under normal circumstances should be starting single phase motor current is rated current of 4 ~ 7 times, and should not be more than ten times! The specific reason analysis are as follows: Measurement errors occur when starting current current, if use pointer style table measuring, may appear because of the inertia of the pointer indicates numerical slants big, cause measurement error. Can convert a bit higher accuracy of digital meter to measure, to verify. Yet even if there is a error of the measured value of the starting current and should not be up to 200 a or 227 a. Starting current instantaneous value has nothing to do with load, even if the pump should not cause leaf jamming starting current instantaneous value of the maximum change.


 CCC,CE Certification and Waterproof Protect Feature ac motor
Specifications
power range: 0.12-18.5 kW 
Centre height of frame: 63-160 mm 
Rated Voltage: 220V 
Rated Frequency: 50Hz or 60Hz 

If pump, lobe jamming will only cause lasting time starting current and not drop down (it may cause the upstream switch trip) thermal magnetic protection operation. If the motor winding insulation to normal, the maximum value of starting current is big and white may be due to the cause of winding turn-to-turn insulation resistance value or the cause of the decline. Phase insulation down check easier, and check the turn-to-turn insulation down is very difficult. Maximum starting current is big reason may also be a phase of the three-phase winding part motor electric of the bolt (if) bifilar winding winding employ. Can use double bridge measuring three-phase winding dc resistance, if found deviation is larger, should doubt part break line a phase (resistance larger phase break). In addition, still should pay attention to whether the motor has to improve the power factor of the capacitor in parallel, if the capacitor performance, can also cause the phenomenon of large starting current value. If there are other reasons, can't think magnet generator up, can only say these first, wish you good luck, quickly troubleshooting.