CN209719316U - Prevent train electrification from entering the Traction networks sectionalised protection shunt tripping system of dead track - Google Patents
Prevent train electrification from entering the Traction networks sectionalised protection shunt tripping system of dead track Download PDFInfo
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- CN209719316U CN209719316U CN201821995727.8U CN201821995727U CN209719316U CN 209719316 U CN209719316 U CN 209719316U CN 201821995727 U CN201821995727 U CN 201821995727U CN 209719316 U CN209719316 U CN 209719316U
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- 239000013307 optical fiber Substances 0.000 claims description 20
- 230000011218 segmentation Effects 0.000 claims description 18
- 230000001681 protective effect Effects 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 abstract description 8
- 238000010891 electric arc Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000010276 construction Methods 0.000 description 1
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Abstract
The utility model discloses a kind of Traction networks sectionalised protection shunt tripping systems for preventing train electrification from entering dead track; the power supply section of Traction networks is not defined as front power supply section and rear power supply section respectively according to current of traffic; the Traction networks include uplink Traction networks and downlink Traction networks; the power supply section of the uplink Traction networks is divided into AT section 1, AT section 2 and AT section 3, and the power supply section of the downlink Traction networks is divided into AT section 4, AT section 5 and AT section 6；Wherein, the Traction networks sectionalised protection shunt tripping system includes the first Traction networks differential protection and the second Traction networks differential protection, third Traction networks differential protection and the 4th Traction networks differential protection, the 5th Traction networks differential protection and the 6th Traction networks differential protection.Therefore, rear power supply section takes stream train electrification to pour the front power supply section after fault trip without electricity and lead to the problem of electric arc and burn out contact net after the utility model can not only efficiently solve Traction networks sectional power supply.
Description
Technical field
The utility model relates to electric railway traction power supply technique fields, and in particular to one kind prevents train electrification from entering
The Traction networks sectionalised protection shunt tripping system of dead track.
Background technique
Railway construction in China is highly visible, has made brilliant achievements.By 2017, China railways revenue kilometres reached 12.7 ten thousand
Km, wherein high-speed railway operating mileage increases to 2.5 ten thousand km, accounts for the world 2/3rds, is sure to occupy the first in the world.High-speed railway none
Exceptionally use electric propulsion.With the increase of high-speed railway mileage, safe, the good operation of tractive power supply system have to be by
To great attention.
Traction networks do not have spare, and are exposed in the Nature, and bow net high speed contact, is easy to cause the generation of failure in addition,
Cause to power off, influences to operate normally.Electric railway traction web frame is complicated, and fault location is difficult, if cannot be promptly and accurately
It was found that and debugging, will extend power off time, interfere normal transport.Traction networks various types short trouble will lead to traction and become
Electric institute's feeder breaker tripping, if it is full parallel operation mode, then electric substation's uplink and downlink feeder breaker will trip simultaneously,
Entire supply arm all by interruption of power supply, needs complicated back brake operation.
Full parallel operation mode realizes the parallel relationship of uplink and downlink Traction networks electrically, but from the angle of reliability function
It sees, it is substantially typical train, this is just significantly reduced that either component failure, which all will lead to system power supply interruption,
The reliability of traction power supply.Solution be Traction networks power supply segmentation, reduce power supply unit, realization quickly isolate fault branch,
Fault location and troubleshooting enhance the selectivity, quick-action, reliability and sensitivity of relay protection, reduce scope of power outage, mention
High breakdown repair efficiency, the tremendous economic that reduces influence of the Traction networks failure to normal transport tissue to greatest extent and may cause
Loss is realized railway security, is functions reliably and efficiently run.
When Traction networks sectional power supply, according to current of traffic will power section be defined as front power supply section (downlink is led
Draw net) and rear power supply section (uplink Traction networks), when short trouble occurs in front service area section, relay protection detects failure
In front of tripping after power-feed section, stream train is taken to would be possible to electrification from rear power-feed section (having electricity) entrance front on the power-feed section of rear
Power-feed section (no electricity) generates electric arc, burns out contact net, cause serious net accident of collapsing.
Utility model content
The purpose of the utility model is to provide a kind of Traction networks sectionalised protection connection for preventing train electrification from entering dead track
Jump system, after capable of being effectively prevented from Traction networks sectional power supply, it is short that rear power supply section takes stream train on-load to pour front generation
The technical issues of electric arc burns out contact net is generated during road failure and segregate dead track.
In order to solve the above-mentioned technical problem, it is as follows to use a technical solution for the utility model:
A kind of Traction networks sectionalised protection shunt tripping system for preventing train electrification from entering dead track, according to current of traffic
The power supply section of Traction networks is not defined as front power supply section and rear power supply section respectively, the Traction networks include that uplink is led
Draw net and downlink Traction networks, the power supply section of the uplink Traction networks is divided into AT section 1, AT section 2 and AT section 3, the downlink traction
The power supply section of net is divided into AT section 4, AT section 5 and AT section 6；Wherein, the Traction networks sectionalised protection shunt tripping system is led including first
It is differential to draw net differential protection, the second Traction networks differential protection, third Traction networks differential protection, the 4th Traction networks
Protective device, the 5th Traction networks differential protection and the 6th Traction networks differential protection；Wherein first Traction networks are poor
Dynamic protective device is communicated to connect by the first optical fiber and the second Traction networks differential protection, and second Traction networks are differential
Protective device is connect by the first shunt tripping line with the third Traction networks differential protection, the third Traction networks differential protection
Device is communicated to connect by the second optical fiber and the 4th Traction networks differential protection, the 4th Traction networks differential protection dress
It sets and is connect by the first shunt tripping line with the 5th Traction networks differential protection, the 5th Traction networks differential protection is logical
It crosses third optical fiber and the 6th Traction networks differential protection communicates to connect.
Preferably, it is even presented by the segmentation of the first contact line articulated type and first respectively between the AT section 1 and AT section 2
The segmentation connection of line articulated type, is connected by the segmentation of the second contact line articulated type and second respectively between the AT section 2 and AT section 3
The segmentation connection of feeder line articulated type.
Preferably, it is even presented by the segmentation of the 4th contact line articulated type and the 4th respectively between the AT section 4 and AT section 5
The segmentation connection of line articulated type, is connected by the segmentation of the 5th contact line articulated type and the 5th respectively between the AT section 5 and AT section 6
The segmentation connection of feeder line articulated type.
It is further preferred that the AT section 1 and AT section 4 be sequentially located at respectively electric substation and the first AT between uplink lead
Draw net and downlink Traction networks, the AT section 2 and AT section 5 be sequentially located at respectively the first AT and the 2nd AT between uplink draw
Net and downlink Traction networks, the AT section 3 and AT section 6 be sequentially located at respectively the 2nd AT and subregion between uplink Traction networks and
Downlink Traction networks.
Specifically, the first Traction networks differential protection is installed in the electric substation, and second Traction networks are poor
Dynamic protective device and the third Traction networks differential protection are installed in the first AT institute, the 4th Traction networks differential protection
Device and the 5th Traction networks differential protection are installed in the 2nd AT institute, the 6th Traction networks differential protection peace
Loaded in the subregion institute.
Compared with prior art, the beneficial effect of the utility model technology is:
One, power supply section is defined as front power supply section and rear power supply section according to current of traffic, works as front
There is short trouble in power supply section, and relay protection detects in front of failure tripping after power-feed section, is simultaneously emitted by after shunt tripping instruction makes
Square power-feed section tripping prevents from taking the electrification of stream train to enter front power-feed section from rear power-feed section (having electricity) on the power-feed section of rear
(no electricity) generates electric arc, burns out contact net, cause serious net accident of collapsing.
Two, this shunt tripping scheme is suitable for the sectional power supply of AT Traction networks and direct-furnish Traction networks, it can also be used to penetrate through same phase entirely
Power supply.
Three, the supply arm that this shunt tripping scheme is suitable for having multiple power supply segmentations.
Three, versatility is good, easy to implement.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of Traction networks sectionalised protection shunt tripping system in the utility model embodiment.
Fig. 2 is the concrete structure schematic diagram of Traction networks sectionalised protection shunt tripping system in the utility model embodiment.
Fig. 3 is the concrete structure schematic diagram that TR short trouble occurs in the utility model embodiment.
Fig. 4 is the concrete structure schematic diagram that FR short trouble occurs in the utility model embodiment.
Specific embodiment
For easy understanding the creation thought of the utility model, the working principle of spy's brief description the utility model, specifically
Are as follows: set electric railway AT (auto-transformer) Traction networks contact line as T, rail R, positive feeder F, TR voltage rating is
UT, FR voltage rating are UF.Uplink Traction networks are divided into three sections: AT section 1, AT section 2, AT section 3, downlink Traction networks are divided into three
Section: AT section 4, AT section 5, AT section 6.A pair of of Traction networks differential protection is installed by electric substation and AT institute 1, this is differential to Traction networks
Pass through fiber optic communication between protective device；A pair of of Traction networks differential protection is installed by AT institute 1 and AT institute 2, this is poor to Traction networks
Pass through fiber optic communication between dynamic protective device；A pair of of Traction networks differential protection is installed with subregion by AT institute 2, this is to Traction networks
Pass through fiber optic communication between differential protection.AT Traction networks differential protection in 1 connected by shunt tripping line, AT institute 2
Interior Traction networks differential protection is connected by shunt tripping line.Power supply section is defined as front power supply according to current of traffic
Section and rear power supply section, when short trouble occurs in front service area section, relay protection detects power supply in front of failure tripping
Duan Hou, being simultaneously emitted by shunt tripping instruction makes rear power-feed section trip, and prevents from taking stream train electrification to supply from rear on the power-feed section of rear
Electric section (having electricity) enters front power-feed section (no electricity), generates electric arc, burns out contact net, cause serious net accident of collapsing.
As shown in Figure 1, the utility model embodiment provides a kind of Traction networks for preventing train electrification from entering dead track
Sectionalised protection shunt tripping system, according to current of traffic by the power supply section of Traction networks be not defined as respectively front power supply section and
Rear power supply section, the Traction networks include uplink Traction networks and downlink Traction networks, the power supply section point of the uplink Traction networks
For AT section 1, AT section 2 and AT section 3, the power supply section of the downlink Traction networks is divided into AT section 4, AT section 5 and AT section 6；Its feature exists
In the Traction networks sectionalised protection shunt tripping system includes short circuit event occur for the front power supply section where AT section 1 and AT section 4
When barrier control rear power-feed section tripping the first Traction networks differential protection DU1 and the second Traction networks differential protection DU2,
The third of control rear power supply section tripping is led when there is short trouble for the front power supply section where AT section 2 and AT section 5
Draw net differential protection DU3 and the 4th Traction networks differential protection DU4, for the front power supply where AT section 3 and AT section 6
There is the 5th Traction networks differential protection DU5 and the 6th Traction networks of power supply section tripping in control rear when short trouble in section
Differential protection DU6.In the utility model embodiment, described occur that short trouble generally comprises TR short trouble and FR is short
Road failure, wherein the voltage rating between contact line T and rail R is UT, and the voltage rating between negative feeder F and rail R is UF.
As shown in Fig. 2, the first Traction networks differential protection DU1 is installed in the electric substation SS, for receiving and dispatching
First optical fiber GQ1It instructs and controls the first contact line breaker KT1, the first feeder breaker KF1, the second contact line breaker KT2
With the first feeder breaker KF2Disconnection；The second Traction networks differential protection DU2 is installed on the first AT institute AT1
It is interior, for receiving and dispatching the first optical fiber GQ1Instruction and the first shunt tripping line LT1Shunt tripping instructs and controls the first upper left breaker KT11, first
Lower-left breaker KF11, the 4th upper left breaker KT41With the 4th lower-left breaker KF41Disconnection；The third Traction networks are differential
Protective device DU3 is installed in the first AT institute AT1, for receiving and dispatching the first shunt tripping line LT1Shunt tripping instruction and the second optical fiber GQ2
And control the first upper right breaker KT12, the first bottom right breaker KF12, the 4th upper right breaker KT42With the 4th bottom right breaker
KF42Disconnection；The 4th Traction networks differential protection DU4 is installed in the 2nd AT institute AT2, for receiving and dispatching the second light
Fine GQ2Instruction and the second shunt tripping line LT2Shunt tripping instructs and controls the second upper left breaker KT21, the second lower-left breaker KF21,
Five upper left breaker KT51With the 5th lower-left breaker KF51Disconnection；The 5th Traction networks differential protection DU5 is installed on
In 2nd AT institute AT2, for receiving and dispatching the second shunt tripping line LT2Shunt tripping instruction and third optical fiber GQ3It instructs and controls the second upper right
Breaker KT22, the second bottom right breaker KF22, the 5th upper right breaker KT52With the 5th lower-left breaker KF51Disconnection；It is described
6th Traction networks differential protection DU6 is installed in the subregion institute SP, for receiving and dispatching third optical fiber GQ3It instructs and controls
Three contact line breaker KT3, third feeder breaker KF3, the 4th contact line breaker KT6With the 4th feeder breaker KF6It is disconnected
It opens.
The first Traction networks differential protection DU1 passes through the first optical fiber GQ1With the second Traction networks differential protection
Device DU2 communication connection, the second Traction networks differential protection DU2 pass through the first shunt tripping line LT1It is drawn with the third
The DU3 connection of net differential protection, the third Traction networks differential protection DU3 pass through the second optical fiber GQ2With the described 4th
Traction networks differential protection DU4 communication connection, the 4th Traction networks differential protection DU4 pass through the first shunt tripping line LT2
It is connect with the 5th Traction networks differential protection DU5, the 5th Traction networks differential protection DU5 passes through third optical fiber
GQ3It is communicated to connect with the 6th Traction networks differential protection DU6.
The electric substation SS and the first AT institute AT1 shares the traction of the first Traction networks differential protection DU1 and second
Net differential protection DU2, the first AT institute AT1 and the 2nd AT institute AT2 share third Traction networks differential protection
It is poor that DU3 and the 4th Traction networks differential protection DU4, the 2nd AT institute AT2 and the subregion institute SP shares the 5th Traction networks
Dynamic protective device DU5 and the 6th Traction networks differential protection DU6.
Continue as shown in Fig. 2, the uplink Traction networks of the Traction networks sectionalised protection system are divided into three sections and are respectively
AT section 1, AT section 2 and AT section 3 are segmented FD by the first contact line articulated type respectively between the AT section 1 and AT section 2T1With
First, which connects feeder line articulated type, is segmented FDF1Connection passes through the second contact line articulated type respectively between the AT section 2 and AT section 3
It is segmented FDT2Connect feeder line articulated type with second and is segmented FDF2Connection.
Described 1 one end of AT section the first contact line breaker KT by being installed on the contact line T respectively1Be installed on
The first feeder breaker KF on the positive feeder F1It is connect with the electric substation SS；1 other end of AT section passes through peace respectively
Loaded on the first upper left breaker KT on the contact line T11With the first lower-left breaker KF being installed on the positive feeder F11
It is connect with the first AT institute AT1.The the first upper right open circuit by being installed on the contact line T respectively of described 2 one end of AT section
Device KT12With the first bottom right breaker KF being installed on the positive feeder F12It is connect with the first AT institute AT1, the AT section 2
The other end the second upper left breaker KT by being installed on the contact line T respectively21Be installed on the positive feeder F
Two lower-left breaker KF21It is connect with the 2nd AT institute AT2.Described 3 one end of AT section is respectively by being installed on the contact line T
The second upper right breaker KT22With the 4th bottom right breaker KF being installed on the positive feeder F22With the 2nd AT institute
AT2 connection, 3 other end of the AT section third contact line breaker KT by being installed on the contact line T respectively3And installation
In the third feeder breaker KF on the positive feeder F3It is connect with the subregion institute SP.
Continue as shown in Fig. 2, the downlink Traction networks of the Traction networks sectionalised protection system are divided into three sections and are respectively
AT section 4, AT section 5 and AT section 6 are segmented FD by the 4th contact line articulated type respectively between the AT section 4 and AT section 5T4With
4th, which connects feeder line articulated type, is segmented FDF4Connection passes through the 5th contact line articulated type respectively between the AT section 5 and AT section 6
It is segmented FDT5Connect feeder line articulated type with the 5th and is segmented FDF5Connection.
Described 4 one end of AT section the second contact line breaker KT by being installed on the contact line T respectively2Be installed on
The second feeder breaker KF on the positive feeder F2It is connect with the electric substation SS；4 other end of AT section passes through peace respectively
Loaded on the 4th upper left breaker KT on the contact line T41With the 4th lower-left breaker KF being installed on the positive feeder F41
It is connect with the first AT institute AT1.The 4th upper right open circuit by being installed on the contact line T respectively of described 5 one end of AT section
Device KT42With the 4th bottom right breaker KF being installed on the positive feeder F42It is connect with the first AT institute AT1, the AT section 4
The other end the 5th upper left breaker KT by being installed on the contact line T respectively51Be installed on the positive feeder F
Five lower-left breaker KF51It is connect with the 2nd AT institute AT2.Described 6 one end of AT section is respectively by being installed on the contact line T
The 5th upper right breaker KT52With the 5th bottom right breaker KF being installed on the positive feeder F52With the 2nd AT institute AT2
Connection, 6 other end of AT section the 4th contact line breaker KT by being installed on the contact line T respectively6Be installed on
The 4th feeder breaker KF on the positive feeder F6It is connect with the subregion institute SP.
As shown in Figure 3 and Figure 4, in order to be best understood from the utility model embodiment, now to prevent train electrification into no electricity
The concrete operation method of the Traction networks sectionalised protection shunt tripping system of section is described as follows:
The power supply section of Traction networks is not defined as front power supply section respectively according to current of traffic and rear powers
Section, the Traction networks include uplink Traction networks and downlink Traction networks, the power supply section of the uplink Traction networks be divided into AT section 1,
AT section 2 and AT section 3, the power supply section of the downlink Traction networks are divided into AT section 4, AT section 5 and AT section 6；The Traction networks segmentation connection
Jump method specifically includes as follows: the front power supply where any in AT section 1, AT section 2, AT section 3, AT section 4, AT section 5 and AT section 6
When there is short trouble in section, the first Traction networks differential protection DU1 and the second Traction networks corresponding to AT section 1 and AT section 4
Third Traction networks differential protection DU3 corresponding to differential protection DU2 or AT section 2 and AT section 5 and the 4th Traction networks are poor
5th Traction networks differential protection DU5 corresponding to dynamic protective device DU4 or AT section 5 and AT section 6 and the 6th Traction networks are differential
Protective device DU6 detects power supply section in tripping front after failure, and being simultaneously emitted by shunt tripping instruction makes rear power supply section tripping, anti-
Only rear powers taking the electrification of stream train to enter front power supply section from rear power supply section on section.The front power supply section
It is opposite with rear power supply section, such as: when AT section 2 breaks down in uplink Traction networks, then according to train operation side
To the front power supply section of AT section 2 is AT section 3, and the rear power supply section of AT section 2 is AT section 1；When AT section 3 in uplink Traction networks
It breaks down, then according to current of traffic, the rear power supply section of AT section 3 is AT section 1 and AT section 2.
As shown in figure 3, when TR short trouble occurs for AT section 3, the traction of the 5th Traction networks differential protection DU5 and the 6th
Net differential protection DU6 disconnects the second upper right breaker KT22With third contact line breaker KT3, while by failure removal and
5th Traction networks differential protection DU5 passes through the second shunt tripping line LT2Hair shunt tripping is instructed to the 4th Traction networks differential protection
DU4；It after the 4th Traction networks differential protection DU4 is connected to shunt tripping instruction, determines after AT section 2 has train to take stream, disconnection the
Two upper left breaker KT21, while passing through the second optical fiber GQ2Issue a command to third Traction networks differential protection DU3, third traction
Net differential protection DU3 disconnects the second upper left breaker KT after receiving instruction12；When AT section 2 is by shunt tripping, third Traction networks are poor
Dynamic protective device DU3 passes through the first shunt tripping line LT1Hair shunt tripping is instructed to the second Traction networks differential protection DU2；It is led second
Draw after net differential protection DU2 is connected to shunt tripping instruction, determines after AT section 1 has vehicle to take stream, the first upper left breaker of disconnection
KT11, while passing through the first optical fiber GQ1Issue a command to the first Traction networks differential protection DU1, the first Traction networks differential protection dress
It sets after DU1 receives instruction and disconnects the first contact line breaker KT1.The T line power loss of the section of AT in this way 1, running train would not thereon
Electrification avoids electric arc and burns out FD from the entrance AT section 2 of AT section 1 (contact line T line shunt tripping power loss)T1Risk.Simultaneously upper
In the case of stating, AT section 4, AT section 5 and the power supply of AT section 6 in downlink Traction networks are not influenced by failure.Similarly, TR occurs for AT section 6
When short trouble, the segmentation shunt tripping method that TR short trouble occurs with above-mentioned AT section 3 is essentially identical, and details are not described herein.
When TR short trouble occurs for AT section 2, third Traction networks differential protection DU3 and the 4th Traction networks differential protection
Device DU4 disconnects the second upper left breaker KT12With the second upper left breaker KT21, while by failure removal, third Traction networks
Differential protection DU3 passes through the first shunt tripping line LT1Hair shunt tripping is instructed to the second Traction networks differential protection DU2；Second
After Traction networks differential protection DU2 is connected to shunt tripping instruction, determine after AT section 1 has vehicle to take stream, the first upper left breaker of disconnection
KT11, while passing through the first optical fiber GQ1Issue a command to the first Traction networks differential protection DU1, the first Traction networks differential protection dress
It sets after DU1 receives instruction and disconnects the first contact line breaker KT1.The T line power loss of the section of AT in this way 1, running train would not thereon
Electrification avoids electric arc and burns out FD from the entrance AT section 2 of AT section 1 (T line trip protection power loss)T1Risk.In this case,
Uplink AT section 3, downlink AT section 4, AT section 5, the power supply of AT section 6 are not influenced by failure.Similarly, when TR short trouble occurs for AT section 5, with
The segmentation shunt tripping method that TR short trouble occurs for above-mentioned AT section 2 is essentially identical, and details are not described herein.
As shown in figure 4, when FR short trouble occurs for AT section 3, the traction of the 5th Traction networks differential protection DU5 and the 6th
Net differential protection DU6 disconnects the second bottom right breaker KF22With third feeder breaker KT3, while by failure removal and
Five Traction networks differential protection DU5 pass through the second shunt tripping line LT2Hair shunt tripping is instructed to the 4th Traction networks differential protection
DU4；It after the 4th Traction networks differential protection DU4 is connected to shunt tripping instruction, determines after AT section 2 has train to take stream, disconnection the
Two lower-left breaker KF21, while passing through the second optical fiber GQ2Issue a command to third Traction networks differential protection DU3, third traction
Net differential protection DU3 disconnects the second bottom right breaker KF after receiving instruction12；When AT section 2 is by shunt tripping, third Traction networks are poor
Dynamic protective device DU3 passes through the first shunt tripping line LT1Hair shunt tripping is instructed to the second Traction networks differential protection DU2；It is led second
Draw after net differential protection DU2 is connected to shunt tripping instruction, determines after AT section 1 has vehicle to take stream, the first lower-left breaker of disconnection
KF11, while passing through the first optical fiber GQ1Issue a command to the first Traction networks differential protection DU1, the first Traction networks differential protection dress
It sets after DU1 receives instruction and disconnects the first feeder breaker KF1.Similarly, it when FR short trouble occurs for AT section 6, is sent out with above-mentioned AT section 3
The segmentation shunt tripping method of raw TR short trouble is essentially identical, and details are not described herein.
The Traction networks segmentation shunt tripping method specific steps include the following: when FR short trouble occurs for AT section 2, and third is led
Draw net differential protection DU3 and the 4th Traction networks differential protection DU4 and disconnects the second bottom right breaker KF12With the second lower-left
Breaker KF21, while by failure removal, third Traction networks differential protection DU3 passes through the first shunt tripping line LT1Hair shunt tripping refers to
It enables to the second Traction networks differential protection DU2；After the second Traction networks differential protection DU2 is connected to shunt tripping instruction, judgement
After thering is vehicle to take stream to AT section 1, the first lower-left breaker KF is disconnected11, while passing through the first optical fiber GQ1Issue a command to the first Traction networks
Differential protection DU1, the first Traction networks differential protection DU1 disconnect the first feeder breaker KF after receiving instruction1.Together
Reason, when FR short trouble occurs for AT section 5, the segmentation shunt tripping method that TR short trouble occurs with above-mentioned AT section 2 is essentially identical, herein
It repeats no more.
Claims (5)
1. a kind of Traction networks sectionalised protection shunt tripping system for preventing train electrification from entering dead track, will according to current of traffic
The power supply section of Traction networks is not defined as front power supply section and rear power supply section respectively, and the Traction networks include uplink traction
Net and downlink Traction networks, the power supply section of the uplink Traction networks are divided into AT section 1, AT section 2 and AT section 3, the downlink Traction networks
Power supply section be divided into AT section 4, AT section 5 and AT section 6；It is characterized in that, the Traction networks sectionalised protection shunt tripping system includes the
One Traction networks differential protection (DU1), the second Traction networks differential protection (DU2), third Traction networks differential protection
(DU3), the 4th Traction networks differential protection (DU4), the 5th Traction networks differential protection (DU5) and the 6th Traction networks are differential
Protective device (DU6)；Wherein the first Traction networks differential protection (DU1) passes through the first optical fiber (GQ1) and described second
Traction networks differential protection (DU2) communication connection, the second Traction networks differential protection (DU2) pass through the first shunt tripping line
(LT1) connect with the third Traction networks differential protection (DU3), the third Traction networks differential protection (DU3) is logical
Cross the second optical fiber (GQ2) communicated to connect with the 4th Traction networks differential protection (DU4), the differential guarantor of the 4th Traction networks
Protection unit (DU4) passes through the first shunt tripping line (LT2) connect with the 5th Traction networks differential protection (DU5), the described 5th
Traction networks differential protection (DU5) passes through third optical fiber (GQ3) communicated with the 6th Traction networks differential protection (DU6)
Connection.
2. the Traction networks sectionalised protection shunt tripping system according to claim 1 for preventing train electrification from entering dead track,
It is characterized in that, (FD is segmented by the first contact line articulated type respectively between the AT section 1 and AT section 2T1) and the first even feedback
Line articulated type is segmented (FDF1) connection, it is segmented respectively by the second contact line articulated type between the AT section 2 and AT section 3
(FDT2) and the second company feeder line articulated type segmentation (FDF2) connection.
3. the Traction networks sectionalised protection shunt tripping system according to claim 1 for preventing train electrification from entering dead track,
It is characterized in that, (FD is segmented by the 4th contact line articulated type respectively between the AT section 4 and AT section 5T4) and the 4th even feedback
Line articulated type is segmented (FDF4) connection, it is segmented respectively by the 5th contact line articulated type between the AT section 5 and AT section 6
(FDT5) and the 5th company feeder line articulated type segmentation (FDF5) connection.
4. preventing train electrification from entering the Traction networks sectionalised protection shunt tripping of dead track described according to claim 1 or 2 or 3
System, which is characterized in that the AT section 1 and AT section 4 are sequentially located at upper between electric substation (SS) and the first AT institute (AT1) respectively
Row Traction networks and downlink Traction networks, the AT section 2 and AT section 5 are sequentially located at the first AT institute (AT1) and the 2nd AT institute (AT2) respectively
Between uplink Traction networks and downlink Traction networks, the AT section 3 and AT section 6 are sequentially located at the 2nd AT institute (AT2) and subregion respectively
Uplink Traction networks and downlink Traction networks between institute (SP).
5. the Traction networks sectionalised protection shunt tripping system according to claim 1 for preventing train electrification from entering dead track,
It is characterized in that, the first Traction networks differential protection (DU1) is installed in the electric substation (SS), second traction
Net differential protection (DU2) and the third Traction networks differential protection (DU3) are installed in the first AT institute (AT1), institute
It states the 4th Traction networks differential protection (DU4) and the 5th Traction networks differential protection (DU5) is installed on the 2nd AT institute
(AT2) in, the 6th Traction networks differential protection (DU6) is installed in the subregion institute (SP).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821995727.8U CN209719316U (en) | 2018-11-29 | 2018-11-29 | Prevent train electrification from entering the Traction networks sectionalised protection shunt tripping system of dead track |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821995727.8U CN209719316U (en) | 2018-11-29 | 2018-11-29 | Prevent train electrification from entering the Traction networks sectionalised protection shunt tripping system of dead track |
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| Publication Number | Publication Date |
|---|---|
| CN209719316U true CN209719316U (en) | 2019-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821995727.8U Withdrawn - After Issue CN209719316U (en) | 2018-11-29 | 2018-11-29 | Prevent train electrification from entering the Traction networks sectionalised protection shunt tripping system of dead track |
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| CN (1) | CN209719316U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109552113A (en) * | 2018-11-29 | 2019-04-02 | 成都尚华电气有限公司 | Prevent train electrification from entering the Traction networks sectionalised protection shunt tripping system and method for dead track |
| CN111313384A (en) * | 2020-03-04 | 2020-06-19 | 西南交通大学 | Fault hop selection protection method for high-speed railway traction network |
| CN113022389A (en) * | 2020-09-21 | 2021-06-25 | 西南交通大学 | Relay protection method for traction network power supply arm based on directional impedance element |
-
2018
- 2018-11-29 CN CN201821995727.8U patent/CN209719316U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109552113A (en) * | 2018-11-29 | 2019-04-02 | 成都尚华电气有限公司 | Prevent train electrification from entering the Traction networks sectionalised protection shunt tripping system and method for dead track |
| CN109552113B (en) * | 2018-11-29 | 2024-02-23 | 成都尚华电气有限公司 | Traction network segment protection jump system and method for preventing train from entering electroless section in electrified mode |
| CN111313384A (en) * | 2020-03-04 | 2020-06-19 | 西南交通大学 | Fault hop selection protection method for high-speed railway traction network |
| CN111313384B (en) * | 2020-03-04 | 2021-03-30 | 西南交通大学 | Fault hop selection protection method for high-speed railway traction network |
| CN113022389A (en) * | 2020-09-21 | 2021-06-25 | 西南交通大学 | Relay protection method for traction network power supply arm based on directional impedance element |
| CN113022389B (en) * | 2020-09-21 | 2022-11-29 | 西南交通大学 | Relay protection method for traction network power supply arm based on directional impedance element |
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