JPS54113820A - Protective device for ac motor - Google Patents

Protective device for ac motor

Info

Publication number
JPS54113820A
JPS54113820A JP2085378A JP2085378A JPS54113820A JP S54113820 A JPS54113820 A JP S54113820A JP 2085378 A JP2085378 A JP 2085378A JP 2085378 A JP2085378 A JP 2085378A JP S54113820 A JPS54113820 A JP S54113820A
Authority
JP
Japan
Prior art keywords
motor
input terminal
voltage
reactor
higher harmonic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2085378A
Other languages
Japanese (ja)
Inventor
Akira Nadawae
Hiroshi Uchino
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP2085378A priority Critical patent/JPS54113820A/en
Publication of JPS54113820A publication Critical patent/JPS54113820A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make a reduction of higher harmonic voltage in the armature winding, by connecting a condenser between input terminals or between the input terminal and the ground of AC motor as well as connecting a reactor between the input terminal of the AC motor and an output terminal of the switching device.
CONSTITUTION: Between an input terminal of the AC motor 3 and an output terminal of the switching device 2, for on-off controlling a voltage applied to the input terminal of the AC motor 3, is connected a higher harmonic absorbing reactor 4 to 6, and between the input terminals of the AC motor 3 or between the input terminal and the ground, is connected a condenser 7 to 9. In this way, a higher harmonic voltage is almost mainly applied to the reactor 10, with a voltage, applied to the armature winding, reduced to ΔEd.
COPYRIGHT: (C)1979,JPO&Japio
JP2085378A 1978-02-27 1978-02-27 Protective device for ac motor Pending JPS54113820A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2085378A JPS54113820A (en) 1978-02-27 1978-02-27 Protective device for ac motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2085378A JPS54113820A (en) 1978-02-27 1978-02-27 Protective device for ac motor

Publications (1)

Publication Number Publication Date
JPS54113820A true JPS54113820A (en) 1979-09-05

Family

ID=12038649

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2085378A Pending JPS54113820A (en) 1978-02-27 1978-02-27 Protective device for ac motor

Country Status (1)

Country Link
JP (1) JPS54113820A (en)

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