CONTROLLER OF WIRE-WOUND MOTOR
PROBLEM TO BE SOLVED: To provide a controller of a wire-wound motor which assure use for a long period without eliminating resistor and also assure excellent maintenance. SOLUTION: This controller is provided with taps ta1 to ta3 provided to resistors 3, 5, 7 connected to each phase in the secondary...
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Main Authors | , |
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Format | Patent |
Language | English |
Published |
21.01.2000
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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Summary: | PROBLEM TO BE SOLVED: To provide a controller of a wire-wound motor which assure use for a long period without eliminating resistor and also assure excellent maintenance. SOLUTION: This controller is provided with taps ta1 to ta3 provided to resistors 3, 5, 7 connected to each phase in the secondary side of a 3-phase wire-wound motor 1, a plurality of rectifying means 312, 314, 316 for rectifying the 3-phase AC voltages of the taps ta1 to ta3 to the DC voltages, a plurality of switch means 311, 313, 315 consisting of semiconductors for turning ON and OFF the output side of the rectifier means 312, 314, 316 and a control means 320 for sequentially turning ON these switch means 311, 313, 315 at the time of starting the 3-phase motor 1. |
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Bibliography: | Application Number: JP19980190354 |