Home News

Why Single Phase Induction Motor is Not Self Starting?

China Fuan Zhongzhi Pump Co., Ltd. certification
China Fuan Zhongzhi Pump Co., Ltd. certification
Zhongzhi does really good on the design and manufacturing of the products. Experienced engineers service us very nice.

—— Vadim Zabiiaka

Good quality, great manufacturers, we are happy with your products.

—— Mr.Reuben kimwolo

Have been working together for more than 3 years very professional. all products work fine in our types of equipment. Thank you.

—— Mr.Yılmaz Türkoğlu

Thank you so much for Zhongzhi company to make our project run smoothly.

—— Mehmet Sefa KEÇİK

Technical issues resolved, reputation is very good.


I'm Online Chat Now
Company News
Why Single Phase Induction Motor is Not Self Starting?
Latest company news about Why Single Phase Induction Motor is Not Self Starting?

Why Single Phase Induction Motor is Not-Self Starting?


When faradays electromagnetic induction law is applied to the rotor, electricity is induced, and force is generated on the rotor bars. But according to Double Revolving Field theory, there are two magnetic fields with the same magnitude but revolving in the opposite direction. Thus, two force vectors are produced with an equal magnitude but opposite in direction.

Thus, as they are of the same magnitude but opposite in direction, these force vectors don’t cause the rotor to rotate. So, single-phase induction motors are not self-starting—the motor buzzes in this condition. The starting force has to be applied for a single-phase motor to prevent this situation and rotate the rotor. The rotor starts rotating as the force in one direction becomes greater than the force in the other direction. In single-phase induction motors, Auxiliary windings are used for this purpose.


Fuan Zhongzhi Pump Co., Ltd


registered the trademark "ZOZHI."


Add:No.155 Shangcun Qinxiyang Industry Zone,Fuan city,Fujian,China

Tel:+86 0593 6532656 Fax: +86 0593 6531158

Mobile: +86.137.0604.0131

E-mail: sales@zz-pump.com

Website: www.zz-pump.com


Pub Time : 2020-02-26 14:11:52 >> News list
Contact Details
Fuan Zhongzhi Pump Co., Ltd.

Contact Person: Ms. Semmy Wu

Tel: 05936532656

Fax: 86-0593-6531158

Send your inquiry directly to us (0 / 3000)