JPS5476918A - Dc compound motor - Google Patents
Dc compound motorInfo
- 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
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
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) |
-
1977
- 1977-12-02 JP JP14386177A patent/JPS6052678B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6052678B2 (en) | 1985-11-20 |
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