JPS5522526A - Power supply to dc electric train - Google Patents
Power supply to dc electric trainInfo
- Publication number
- JPS5522526A JPS5522526A JP9430678A JP9430678A JPS5522526A JP S5522526 A JPS5522526 A JP S5522526A JP 9430678 A JP9430678 A JP 9430678A JP 9430678 A JP9430678 A JP 9430678A JP S5522526 A JPS5522526 A JP S5522526A
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- circuit
- equipment
- converter
- phase
- 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
Links
Abstract
PURPOSE: To simplify and make the equipment maintenance free and to improve protection and reliability of power supply system by constituting power supply circuit system in which each power supply circuit is equipped with a converter and eliminating a circuit breaker for a converter and power supply.
CONSTITUTION: Three-phase AC voltage received from a three-phase AC cables 5 via AC circuit brackers 6 is transformed to a proper voltage by a transformer 7 and is converted into DC by converters 8 and 8'. Plus side of each converter 8 and 8' are directly connected to the positive pole bus bars 10 and 10', without any breakers between them, and the bus bars 10 and 10' are directly connected to each electric train area 13 and 13', with DC current breaker for power supply omitted. The equipment is protected from short circuit on the power supply circuit, if any, by a three-phase AC breaker 6. As stated, even without DC breakers, the equipment is completely protected from troubles of short circuits. The simplified, maintenance-free equipment is thus obtained for improved protection and power supply reliability.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9430678A JPS5522526A (en) | 1978-08-02 | 1978-08-02 | Power supply to dc electric train |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9430678A JPS5522526A (en) | 1978-08-02 | 1978-08-02 | Power supply to dc electric train |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5522526A true JPS5522526A (en) | 1980-02-18 |
Family
ID=14106582
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9430678A Pending JPS5522526A (en) | 1978-08-02 | 1978-08-02 | Power supply to dc electric train |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5522526A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4468572A (en) * | 1981-10-15 | 1984-08-28 | Japanese National Railways | Feeder voltage compensating apparatus for electric railway |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4921136B1 (en) * | 1970-08-31 | 1974-05-30 |
-
1978
- 1978-08-02 JP JP9430678A patent/JPS5522526A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4921136B1 (en) * | 1970-08-31 | 1974-05-30 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4468572A (en) * | 1981-10-15 | 1984-08-28 | Japanese National Railways | Feeder voltage compensating apparatus for electric railway |
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