Title: Speed regulating method using tapped-winding and tapped-winding electric motors and switches
Application Number: 85100999 Application Date: 1985.04.01
Publication Number: 1000088 Publication Date: 1985.10.10
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H01H1/14,H01H19/56,H02P7/00
Applicant(s) Name: Zhengzhou Polytechnical College Address:
Inventor(s) Name:
Attorney & Agent:
Abstract:
     The invention discloses a speed regulating method of 3 phase asynchronous motor, the regulation of which is realized by means of changing the turns of every coils of its winding,i.e.by means of changing the value of voltage per turn. In comparision with the existing speed regulating system using thyristor converter for dropping voltage and the electromagnetic speed-control electric motor,the new method has advantages of simple construction,convenient to produce, easy to maintain, cheaper cost and reliable in operation.
Time: 11