Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
METHOD FOR STARTING A SINGLE-PHASE INDUCTION MOTOR, STARTING DEVICE FOR A SINGLE-PHASE MOTOR AND STARTING SYSTEM THEREFOR
Document Type and Number:
WIPO Patent Application WO/2012/116425
Kind Code:
A3
Abstract:
The present invention relates to a starting device for a single-phase induction motor, comprising a stator (M) with a running winding (B1) and a starting winding (B2), a starting device (28) connecting the starting winding (B2) to an alternating voltage supply source (F) when in a closed state; the start switch (S1) being moved to an open position when the start of the motor is ended, the starting device (28) comprising: a start switch (S1), an electronic signal-processing device (30) receiving current signals originating from a current sensor (RS) that senses the current flowing through the start switch (S1) and receiving voltage signals from a voltage zero-crossing sensor SV, wherein the control unit (30) instructs the closing and opening of the start switch (S1) in accordance with the interpretation of the signals from the voltage and current zero- crossing sensors, and from time sensors.

Inventors:
ZANELATO MARCELO (BR)
BRUNING CLAUDIO (BR)
DE SOUZA MARCOS ROBERTO (BR)
Application Number:
PCT/BR2012/000052
Publication Date:
December 06, 2012
Filing Date:
March 01, 2012
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
WHIRLPOOL SA (BR)
ZANELATO MARCELO (BR)
BRUNING CLAUDIO (BR)
DE SOUZA MARCOS ROBERTO (BR)
International Classes:
H02P1/42; H02P1/44; H02P25/04
Domestic Patent References:
WO2004038906A12004-05-06
Foreign References:
US6756756B12004-06-29
US7202627B12007-04-10
US20060175999A12006-08-10
Attorney, Agent or Firm:
DANNEMANN, SIEMSEN, BIGLER & IPANEMA MOREIRA (Rua Marquês de Olinda 70, -040 - Rio de Janeiro - RJ, BR)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: FISHING DEVICE WITH AN ELASTIC SHAFT FOR THE REEL

Next Patent: HIGH POWER AC TO DC CONVERSION