CN201077466Y - High voltage asymmetric track circuit system of 25Hz power supply - Google Patents
High voltage asymmetric track circuit system of 25Hz power supply Download PDFInfo
- Publication number
- CN201077466Y CN201077466Y CNU2007200327752U CN200720032775U CN201077466Y CN 201077466 Y CN201077466 Y CN 201077466Y CN U2007200327752 U CNU2007200327752 U CN U2007200327752U CN 200720032775 U CN200720032775 U CN 200720032775U CN 201077466 Y CN201077466 Y CN 201077466Y
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- power supply
- circuit
- impedance transformer
- receiving
- rail
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Abstract
The utility model discloses a high-voltage asymmetric track circuit system for 25 Hz power supply, comprising a steel rail and a sending-end circuit and a receiving-end circuit which are connected with the steel rail, the sending-end circuit comprises a sending-end choke transformer, the secondary side coil of the sending-end choke transformer is connected with the output of a code sender, the input of the code sender is connected with a power supply; the receiving-end circuit comprises a receiving-end choke transformer, the secondary side coil of the receiving-end choke transformer is connected with the input of a decoder, the output of the decoder is connected with a receiving equipment; the primary side coils of the sending-end choke transformer and the receiving-end choke transformer are respectively connected with the rail, the power frequency is 25 Hz. The utility model has the advantages that the rail-voltage is improved to breakdown rust layer of the track surface, the splitter sensitivity of track circuit is improved, the problem of bad splitter is solved, and a resonant circuit connected in series is connected in parallel in the receiving-end choke transformer, the anti-interference capability is improved, the driving safety is ensured.
Description
Technical field
The utility model relates to a kind of track circuit that is used for railway power traction section.Be particularly related to a kind of asymmetric track circuit system of high pressure of 25Hz power supply power supply.
Background technology
At present, about 98% station utilization 25Hz phase detecting track circuit system detects and has or not train occupation on the track in China's electrified railway, sends, whether complete information whether idle about track by track circuit.But in real work,, multiple reason make its track circuit lose proper function owing to causing the track rail level to get rusty.It is investigated reality, the rail level rusty scale can be considered quartz conductor, semi-insulator, when rail surface voltage greater than certain value (about 0.5V), the quartz conductor rusty scale is with breakdown and conducting; And the about 0.4V～0.7V of rail surface voltage of existing 97 type 25Hz phase detecting track circuit systems is not enough to the breakdown voltage semiconductor rusty scale, and therefore, the normal operation of track circuit system can not be guaranteed, and directly influences the transportation-production and the traffic safety of railway.
The utility model content
The purpose of this utility model is the deficiency that exists at prior art, and a kind of asymmetric track circuit system of high pressure that can puncture the 25Hz power supply power supply of rail level rusty scale, raising track circuit shunting sensitivity is provided.
The technical solution of the utility model is: a kind of asymmetric track circuit system of high pressure of 25Hz power supply power supply, the sending end circuit that comprises rail 3 and be connected and be subjected to terminal circuit with rail 3, it is characterized in that: described sending end circuit comprises sending end impedance transformer 2, II lateral coil of sending end impedance transformer 2 connects the mouth of code sender 1, and the input end of code sender 1 connects power supply 7; The described terminal circuit that is subjected to comprises receiving end impedance transformer 4, and II lateral coil of receiving end impedance transformer 4 connects the input end of decoder 5, and the mouth of decoder 5 connects reception facilities 6; I lateral coil of described sending end impedance transformer 2 and receiving end impedance transformer 4 is connected with rail 3 respectively, and described power supply 7 frequencies are 25Hz.
The utility model compared with prior art has the following advantages: the utility model adopts by 220 volts, the code sender of 25 hertz of power supply power supplies produces the high pressure asymmetry pulse, rail surface voltage is improved, (the rail level rusty scale is an iron oxide composition to puncture the rail level rusty scale, can be considered quartz conductor, semi-insulator, when the quartz conductor both end voltage greater than certain value, quartz conductor is with conducting), improve the track circuit shunting sensitivity, solved the shunting badness problem, and in sending the receiving end impedance transformer and be connected to series resonant circuit, improve antijamming capability, thereby guaranteed railway transportation production and traffic safety.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
The utility model will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, the utility model comprises rail 3 and the sending end circuit that is connected with rail and be subjected to terminal circuit, described sending end circuit comprises sending end impedance transformer 2, and II lateral coil of sending end impedance transformer 2 connects the mouth of code sender 1, and the input end of code sender 1 connects power supply 7; The described terminal circuit that is subjected to comprises receiving end impedance transformer 4, and II lateral coil of receiving end impedance transformer 4 connects the input end of decoder 5, and the mouth of decoder 5 connects reception facilities 6; I lateral coil of described sending end impedance transformer 2 and receiving end impedance transformer 4 is connected with rail 3 respectively, and described power supply 7 frequencies are 25Hz.
II lateral coil of described sending end impedance transformer 2 and receiving end impedance transformer 4 all and be connected to series resonant circuit, described series resonant circuit is composed in series by inductance L and capacitor C.
The input power frequency of described code sender 1 is 25Hz.
During the utility model work, employing is code sender 1 power supply by 220 volts, 25 hertz power supplys, code sender 1 produces the high pressure asymmetry pulse, and rail surface voltage is improved, and (the rail level rusty scale is an iron oxide composition to puncture the rail level rusty scale, can be considered quartz conductor, when the quartz conductor both end voltage greater than certain value, quartz conductor is with conducting), thus improved the track circuit shunting sensitivity, solve the shunting badness problem, guaranteed railway transportation production and traffic safety.
Claims (3)
1. the asymmetric track circuit system of high pressure of 25Hz power supply power supply, the sending end circuit that comprises rail (3) and be connected and be subjected to terminal circuit with rail (3), it is characterized in that: described sending end circuit comprises sending end impedance transformer (2), II lateral coil of sending end impedance transformer (2) connects the mouth of code sender (1), and the input end of code sender (1) connects power supply (7); The described terminal circuit that is subjected to comprises receiving end impedance transformer (4), and II lateral coil of receiving end impedance transformer (4) connects the input end of decoder (5), and the mouth of decoder (5) connects reception facilities (6); I lateral coil of described sending end impedance transformer (2) and receiving end impedance transformer (4) is connected with rail (3) respectively, and described power supply (7) frequency is 25Hz.
2. the asymmetric track circuit system of high pressure of 25Hz power supply power supply according to claim 1, it is characterized in that: II lateral coil of described sending end impedance transformer (2) and receiving end impedance transformer (4) all and be connected to series resonant circuit, described series resonant circuit is composed in series by inductance L and capacitor C.
3. the asymmetric track circuit system of high pressure according to claim 1 is characterized in that: the input power frequency of described code sender (1) is 25Hz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200327752U CN201077466Y (en) | 2007-09-17 | 2007-09-17 | High voltage asymmetric track circuit system of 25Hz power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200327752U CN201077466Y (en) | 2007-09-17 | 2007-09-17 | High voltage asymmetric track circuit system of 25Hz power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201077466Y true CN201077466Y (en) | 2008-06-25 |
Family
ID=39569523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200327752U Expired - Lifetime CN201077466Y (en) | 2007-09-17 | 2007-09-17 | High voltage asymmetric track circuit system of 25Hz power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201077466Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102107667A (en) * | 2010-12-15 | 2011-06-29 | 佟元江 | Method and device for solving problem of poor shunting of track circuit |
| CN102310870A (en) * | 2011-05-16 | 2012-01-11 | 铁道部运输局 | ZPW-2000A track circuit system |
| CN104714127A (en) * | 2015-02-04 | 2015-06-17 | 中国铁路总公司 | Track circuit traction current interference resistance testing device based on virtual instrument |
| CN115892118A (en) * | 2023-01-06 | 2023-04-04 | 中铁通信信号勘测设计院有限公司 | 25Hz phase-sensitive track circuit system |
-
2007
- 2007-09-17 CN CNU2007200327752U patent/CN201077466Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102107667A (en) * | 2010-12-15 | 2011-06-29 | 佟元江 | Method and device for solving problem of poor shunting of track circuit |
| CN102107667B (en) * | 2010-12-15 | 2013-09-18 | 陈淑芳 | Method for solving problem of poor shunting of track circuit |
| CN102310870A (en) * | 2011-05-16 | 2012-01-11 | 铁道部运输局 | ZPW-2000A track circuit system |
| CN104714127A (en) * | 2015-02-04 | 2015-06-17 | 中国铁路总公司 | Track circuit traction current interference resistance testing device based on virtual instrument |
| CN115892118A (en) * | 2023-01-06 | 2023-04-04 | 中铁通信信号勘测设计院有限公司 | 25Hz phase-sensitive track circuit system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080625 |