A New Method for Part-Winding Starting of Polyphase Motors [includes discussion]
- 1 January 1955
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Transactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems
- Vol. 74 (3)
- https://doi.org/10.1109/AIEEPAS.1955.4499251
Abstract
Part-winding or "step-starting" of polyphase induction motors for holding down the initial starting current inrush is on the increase. The conventional scheme provides two half-current starting contactors, each with three poles. The motors have dual-voltage 9-lead windings, arranged in two independent Y's, separately connected to the two contactors. The two contactors are closed in sequence with a few seconds' delay between, giving about 60 per cent (%) current on the first step. The delay must be very short, because the accelerating torque on half-winding is usually low, the motor may be noisy, and the rate of heating is high.Keywords
This publication has 2 references indexed in Scilit:
- Split-Winding Starting of 3-Phase MotorsTransactions of the American Institute of Electrical Engineers, 1951
- Starting Characteristics and Control of Polyphase Squirrel-Cage Induction MotorsTransactions of the American Institute of Electrical Engineers, 1926