Starter for a line start electric motor

Details Starter for a line start electric motor Starter for a line start electric motor

2007-09-04

2007-09-04

Masih, Karen (Department: 2837)

Electricity: motive power systems

Induction motor systems

Primary circuit control

C318S778000, C318S783000, C318S782000, C318S430000, C318S431000

Reexamination Certificate

active

11046102

ABSTRACT:
The invention concerns a starter for a line start electric motor having at least one main winding (4) and at least one start winding (12) and which start winding is connected in series with a run capacitor (14) with which a start capacitor (17) and a PTC-thermistor (19) are connected in parallel. In order to make a simply constructed starter for a line start electric motor the start capacitor (17) and the PTC-thermistor (19) are connected in series with a switch mechanism (20). The series connected circuit made up of the start capacitor (17), the PTC-thermistor (19) and the switch mechanism (20) is connected in parallel with the run capacitor (14).

REFERENCES:
patent: 3737752 (1973-06-01), Strachan
patent: 6356047 (2002-03-01), Cecconi
patent: 6456470 (2002-09-01), Cecconi
patent: 2002/0190595 (2002-12-01), Han et al.

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