JPS5476918A - Dc compound motor - Google Patents

Dc compound motor

Info

Publication number
JPS5476918A
JPS5476918A JP14386177A JP14386177A JPS5476918A JP S5476918 A JPS5476918 A JP S5476918A JP 14386177 A JP14386177 A JP 14386177A JP 14386177 A JP14386177 A JP 14386177A JP S5476918 A JPS5476918 A JP S5476918A
Authority
JP
Japan
Prior art keywords
shunt
divisions
bridge
overhead line
terminals
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.)
Granted
Application number
JP14386177A
Other languages
Japanese (ja)
Other versions
JPS6052678B2 (en
Inventor
Shizuo Tsujimoto
Tatsuo Baba
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP14386177A priority Critical patent/JPS6052678B2/en
Publication of JPS5476918A publication Critical patent/JPS5476918A/en
Publication of JPS6052678B2 publication Critical patent/JPS6052678B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Control Of Direct Current Motors (AREA)
  • Dc Machiner (AREA)

Abstract

PURPOSE: To eliminate unbalance of flux generated by shunt winding divisions with such a construction that a bridge is constituted by coils of the same impedance even at the time of sudden change of the overhead line voltage.
CONSTITUTION: A DC motor 1 has a shunt winding consisting of divisions 4A and 4B, which form a bridge together with external windings 12 having the same impedance as that of each shunt winding division. Of the terminals of this bridge, two opposing terminals are connected to a shunt circuit, and the other terminals are connected to an exciting circuit of a rectifying circuit 9. Thus, when the frequency is reduced to be lower than a reference frequency with reduction of the voltage on the overhead line 11, a thyristor 91 of the rectifying circuit 9 is fired to cause exciting current Ie to flow in the opposite direction to the shunt current If through the shunt winding divisions 4A and 4B. When the overhead line voltage 11 is increased, a thyristor 92 is fired to cause the exciting current Ie to flow in the same direction as the shunt current If through the shunt windings 4A and 4B.
COPYRIGHT: (C)1979,JPO&Japio
JP14386177A 1977-12-02 1977-12-02 DC compound motor Expired JPS6052678B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14386177A JPS6052678B2 (en) 1977-12-02 1977-12-02 DC compound motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14386177A JPS6052678B2 (en) 1977-12-02 1977-12-02 DC compound motor

Publications (2)

Publication Number Publication Date
JPS5476918A true JPS5476918A (en) 1979-06-20
JPS6052678B2 JPS6052678B2 (en) 1985-11-20

Family

ID=15348674

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14386177A Expired JPS6052678B2 (en) 1977-12-02 1977-12-02 DC compound motor

Country Status (1)

Country Link
JP (1) JPS6052678B2 (en)

Also Published As

Publication number Publication date
JPS6052678B2 (en) 1985-11-20

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