CN202455158U - Bus coupler cabinet backup automatic switching device for rail transit power supply system - Google Patents
Bus coupler cabinet backup automatic switching device for rail transit power supply system Download PDFInfo
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- CN202455158U CN202455158U CN2012200250874U CN201220025087U CN202455158U CN 202455158 U CN202455158 U CN 202455158U CN 2012200250874 U CN2012200250874 U CN 2012200250874U CN 201220025087 U CN201220025087 U CN 201220025087U CN 202455158 U CN202455158 U CN 202455158U
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- bus
- cabinet
- automatic switching
- bus coupler
- buses
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Abstract
The utility model provides a bus coupler cabinet backup automatic switching device for a rail transit power supply system. The bus coupler cabinet backup automatic switching device comprises a plurality of subway stations, a first bus and a second bus of each subway station are connected through a connecting line positioned between the buses, a bus coupler cabinet is mounted on each connecting line positioned between the buses, first buses of the adjacent subway stations are serially connected through an inter-zone cable, second buses of the adjacent subway stations are serially connected through an inter-zone cable, a comprehensive measuring and controlling protection device F650 is mounted in each bus coupler cabinet, and a digital communication over-current protection device F35 and a circuit differential protection device L30 are mounted in an inlet wire circuit breaker cabinet and an outlet wire circuit breaker cabinet of each inter-zone cable respectively. An input condition is logically judged under the combined action of the F650, the F35 and the L30, backup automatic switching judgment results are outputted, and safety interlocking and automatic switching of the automatic switching device are finished, so that a manual separating brake and a remote-control separating brake have an automatic switching function in interlocking.
Description
Technical field
The utility model belongs to track traffic electric power system technical field of relay protection, is specifically related to be applied to the female device that joins the cabinet prepared auto restart of realization of track traffic electric power system.
Background technology
In the track traffic electric power system, be connected through line between mother between two sections buses of same subway station, need on line between mother, connect a bus between two bus circuit breakers on two sections buses.Under the normal condition, two bus breaker closings, a bus separating brake, two sections buses are independently-powered respectively.When one section bus breaks down, then need make the bus tripping operation on this segment fault bus, close a floodgate with seasonal bus, utilizing the normal bus of another section is two sections bussed supplies, this function is called prepared auto restart.Prior art is for the detection of bus loss of pressure, and how to judge exactly whether the prepared auto restart operation condition is set up and in time close a floodgate female the couplet, all do not have good solution.
The utility model content
To the problems referred to above, the applicant improves through research, provides a kind of track traffic electric power system female cabinet backup auto-activating device that joins at present, satisfies the requirement of relaying protection to reliability, selectivity, sensitivity, rapidity.
The technical scheme of the utility model is following:
The utility model provides a kind of track traffic electric power system female cabinet backup auto-activating device that joins; Comprise a plurality of subway stations; Each subway station comprises first bus and second bus, and first bus is connected through line between mother with second bus, and female cabinet that joins is installed on the line between mother; Contact each other through a class interval cable between first bus of adjacent subway station; Contact each other through another class interval cable between second bus of adjacent subway station; At least one interval cable is connected with outlet from electric substation; The outlet that every interval cable is connected with last subway station and with inlet wire that back one subway station is connected on breaker cabinet all is installed; Be separately installed with comprehensive control protective device F650 in each female couplet in cabinet, in the line breaker cabinet, be separately installed with a digital communication overcurrent protective device F35 and a line differential protection device L30 at every interval cable.
The useful technique effect of the utility model is:
The utility model carries out logic determines through the acting in conjunction of F650, F35, L30 to initial conditions, and output prepared auto restart judged result, accomplishes the safety interlocking and automatic input of equipment, makes manual brake separating and the locking of telemechanical separating brake possess automatic input function.
Description of drawings
Fig. 1 is typical case's power supply section sketch map.
Fig. 2 is the logic diagram that first kind of situation starts prepared auto restart.
Fig. 3 is the logic diagram that second kind of situation starts prepared auto restart.
Fig. 4 is a prepared auto restart combined floodgate logic diagram.
Fig. 5 is female commissural arch combined floodgate logic diagram.
Fig. 6 is cyclization protection Trip Logic figure.
Embodiment
Further specify below in conjunction with the embodiment of accompanying drawing the utility model.
Be convenient and analyze that choose the typical case as shown in Figure 1 section of supplying power to track traffic electric power system the whole network at present and introduce the utility model, other power supply sections are similar with it.
One, typical service area segment protect configuration:
On typical power supply zone as shown in Figure 1, show A, two subway stations of B, I bus and II bus form looped network separately, are provided with 8 circuit breakers (cabinet) on two looped networks altogether.The I bus is connected through line between mother with the II bus, establishes 1 bus (cabinet) between every mother on the line.On this power supply zone, may be because of the change of operational mode, supplier of electricity to and change to some extent.On this power supply zone, interval cable on the line breaker cabinet, all install digital communication overcurrent protective device F35, line differential protection device L30, bus is all installed the integrated protection and monitoring device F650 of GE company cashier's office in a shop.
Two, the prepared auto restart function realizes:
The dual power supply of subway and two sections bus section operational modes according to initial conditions, can realize stand-by power supply prepared auto restart function through programming in logic.The prepared auto restart function should drop into and remove in locality/distant place.
GE Company products F35, L30 are through programmable I/O; The switching value of gathering, couplet jumping signal, failure signal are transferred in the device of offside through optical-fibre channel; Intermediate quantity as the offside device is used for programming in logic, utilizes this function to haul oneself willingly into entry condition as bus connection switch in this engineering.
Disposed F650 integrated protection relay on the bus connection switch; Utilize input of powerful programming in logic ability of F650 and extendible switching value and output contact; Initial conditions is carried out logic determines; And the output judged result, the safety interlocking and automatic input of accomplishing equipment make manual brake separating and the locking of telemechanical separating brake drop into function automatically.Automatically input can drop in the locality/remove, and also can dropped into/removed by a distant place through communication network.
Two kinds start the prepared auto restart scheme:
I, differential or digital communication overcurrent main protection startup prepared auto restart:
Inlet wire starts female the couplet from voted signal to female cabinet that joins: 1. differential action (interval cable fault) under following three kinds of situation; 2. digital communication overcurrent main protection (interval cable fault); 3. the couplet of offside is jumped signal (higher level stand busbar fault).The logical relation that starts prepared auto restart is as shown in Figure 2.The biggest advantage that this kind starts prepared auto restart is to restore electricity fast.
The II decompression starts prepared auto restart:
Inlet wire starts female the couplet from voted signal to female cabinet that joins through finding the power supply decompression.The logical relation that starts prepared auto restart is as shown in Figure 3.This kind starts the prepared auto restart mode when optical fiber communication is interrupted and when fault is arranged, and restoring electricity of standing of subordinate played important effect.
Female cabinet protective device F650 that joins according to logic determines, carries out prepared auto restart after receiving above-mentioned startup prepared auto restart signal, its prepared auto restart combined floodgate logical relation is as shown in Figure 4.Among Fig. 4, " I is female to be started " and " the II mother starts " are I process female and that II is female and start the startup prepared auto restart signal that the prepared auto restart judgement obtains for above-mentioned two kinds.
Three, the function of cyclization operation realizes:
Definition: cyclization is operating as two inlet wires and the closed simultaneously operational mode of bus connection switch circuit breaker.Its advantage is can be to carrying out grid switching operation under vehicle towed power supply and the unbroken situation of throwing light on.
Implementation method: when cyclization allows change over switch when the position is withdrawed from cyclization; Two inlet wires can only closure wherein two with female join at most; When cyclization allows change over switch when cyclization allows the position; Two inlet wires and bus connection switch all can be closed, four chosen positions of tripping operation selective switchgear: cyclization withdraws from, select and jump into that line 1, choosing are jumped into line 2, the female couplet jumped in choosing, be used for two inlet wires and bus connection switch all can closure after a certain switch of tripping optionally.
Be installed in female F650 integrated protection relay that joins cashier's office in a shop; Through detecting the position signalling of two sections service entrance switchs, the switch position signal of self cupboard, cyclization allows the position signalling of selector switch position signalling and tripping operation selective switchgear; These signals are participated in programming in logic; Protective device carries out logic determines to initial conditions, and judged result is arranged to different contact outlets, delivers to branch, the closing circuit of respective switch cabinet.Realize the cyclization defencive function with this.
Logic such as Fig. 5, shown in Figure 6 of closing a floodgate and allowing.
Above-described only is the preferred implementation of the utility model, and the utility model is not limited to above embodiment.Be appreciated that other improvement and variation that those skilled in the art directly derive or associate under the prerequisite of the basic design that does not break away from the utility model, all should think to be included within the protection range of the utility model.
Claims (1)
1. the female cabinet backup auto-activating device that joins of track traffic electric power system comprises a plurality of subway stations, and each subway station comprises first bus and second bus, and first bus is connected through line between mother with second bus, and female cabinet that joins is installed on the line between mother; Contact each other through a class interval cable between first bus of adjacent subway station; Contact each other through another class interval cable between second bus of adjacent subway station; At least one interval cable is connected with outlet from electric substation; The outlet that every interval cable is connected with last subway station and with inlet wire that back one subway station is connected on breaker cabinet all is installed; It is characterized in that: be separately installed with comprehensive control protective device F650 in each female couplet in cabinet, in the line breaker cabinet, be separately installed with a digital communication overcurrent protective device F35 and a line differential protection device L30 at every interval cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200250874U CN202455158U (en) | 2012-01-19 | 2012-01-19 | Bus coupler cabinet backup automatic switching device for rail transit power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200250874U CN202455158U (en) | 2012-01-19 | 2012-01-19 | Bus coupler cabinet backup automatic switching device for rail transit power supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202455158U true CN202455158U (en) | 2012-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200250874U Expired - Fee Related CN202455158U (en) | 2012-01-19 | 2012-01-19 | Bus coupler cabinet backup automatic switching device for rail transit power supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202455158U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107171323A (en) * | 2017-06-27 | 2017-09-15 | 中铁第四勘察设计院集团有限公司 | A kind of track traffic loop wire middle-voltage network electric power system and its operation method |
-
2012
- 2012-01-19 CN CN2012200250874U patent/CN202455158U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107171323A (en) * | 2017-06-27 | 2017-09-15 | 中铁第四勘察设计院集团有限公司 | A kind of track traffic loop wire middle-voltage network electric power system and its operation method |
| CN107171323B (en) * | 2017-06-27 | 2023-04-18 | 中铁第四勘察设计院集团有限公司 | Rail transit loop medium-voltage network power supply system and operation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20150119 |
|
| EXPY | Termination of patent right or utility model |