CN208672745U - A kind of electric railway switching station fault detection means - Google Patents
A kind of electric railway switching station fault detection means Download PDFInfo
- Publication number
- CN208672745U CN208672745U CN201821382072.7U CN201821382072U CN208672745U CN 208672745 U CN208672745 U CN 208672745U CN 201821382072 U CN201821382072 U CN 201821382072U CN 208672745 U CN208672745 U CN 208672745U
- Authority
- CN
- China
- Prior art keywords
- switching station
- net
- breaker
- current transformer
- lin
- 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.)
- Active
Links
Landscapes
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The utility model discloses a kind of electric railway switching station fault detection means, are related to electric railway traction power supply technique field.The fault detection means is installed on intermediate switching station, its output end connects Zuo Lin switching station, intermediate switching station, the control terminal of You Lin switching station and electricity and adjusts information transmitting terminal, wherein, the Zuo Lin switching station, intermediate switching station, You Lin switching station are arranged two respectively on the contact net respectively exported and are connected between sectionaliser and sectionaliser by transition region.The utility model can timely and accurately find failure and isolated fault, can efficiently solve pantograph shorting contact net when train existing in the prior art drives into faulty section from non-faulting section and new short circuit and train on-load is caused to enter non-Electric region and cause arcing and scaling loss, even blow contact net and cause the technical problems such as accident.
Description
Technical field
The invention belongs to attached wires of AC electrified railway traction power supply and observation and control technology fields.
Background technique
Directly occupy most status in the electric railway of power supply (direct-furnish) mode, it has, and structure is simple, investment is less,
Many advantages, such as maintenance and repair is easy.Obviously, under direct-furnish mode, implement power supply or adjacent traction over long distances in traction substation
Non-Electric region can be reduced or eliminated by implementing through cophase supply between electric substation, and then improve power supply capacity.At the same time, it is
Failure is limited in minimum zone, guarantees larger range of normal power supply, needs Traction networks to realize sectional power supply, that is, is connecing
Sectionaliser is installed in net-fault and switching station is set, to realize segmental resection, the isolation of failure.But this segmentation method is connecing
Net-fault can also bring new problem when breaking down: (1) breaker open operation of faulty section two sides is by after Fault Isolation, if train from
Non-faulting section drives into faulty section, then the contact net of normal contact net and faulty section can be shorted by its pantograph, causes new short circuit
Failure；(2) if instantaneous short-circuit failure is after the catenary cut off of faulty section one end or the breaker open operation at faulty section both ends
Through disappearing, if train from non-faulting section drives into faulty section at this time, belongs to train on-load and enters non-Electric region, arcing will be caused,
Arcing meeting scaling loss contact line, or even contact line is blown, it leads to a disaster.
Obviously, technical problem urgently to be solved is now: while being found in time and accurately with isolated fault, thoroughly
Eliminating pantograph shorting contact net when train drives into faulty section from non-faulting section causes new short circuit and train on-load to enter nothing
The phenomenon that electric area causes arcing and scaling loss, even blows contact net and cause accident and hidden danger.
Utility model content
It is an object of the present invention to provide a kind of fault detection means of electric railway switching station, it can efficiently solve existing
The technical issues of failure and isolated fault cannot be timely and accurately found present in technology, then column can thoroughly be eliminated by manipulation
Pantograph shorting contact net causes new short circuit and train on-load to enter non-Electric region and make when vehicle drives into faulty section from non-faulting section
At arcing and scaling loss, even blow contact net and cause accident the phenomenon that and hidden danger, to improve the reliability of power supply system
With the efficiency of railway transportation.
In order to solve the above-mentioned technical problem, the following technical solutions are proposed by the present invention:
A kind of electric railway switching station fault detection means chooses three opening and closings adjacent in electrified iron direct supply system
Carried out by section, be denoted as Zuo Lin switching station, intermediate switching station and You Lin switching station respectively, intermediate switching station is equipped with fault detection dress
It sets, the input terminal of the fault detection means is separately connected the test lead of Zuo Lin switching station, intermediate switching station, You Lin switching station,
Output end connects Zuo Lin switching station, intermediate switching station, the control terminal of You Lin switching station and electricity and adjusts information transmitting terminal, wherein left neighbour
Switching station, intermediate switching station, You Lin switching station are respectively set two sectionalisers on the contact net respectively exported, and sectionaliser it
Between pass through transition region connect.
The test lead of the Zuo Lin switching station is the test lead of the second current transformer, and the control terminal of Zuo Lin switching station is the
The control terminal of one upper right net breaker；The first bus concatenation first voltage mutual inductor of the Zuo Lin switching station is divided into three after drawing
Road, the first via are connected to first by the first upper left net breaker of concatenation, the first current transformer and the first upper left cable nearby
On the contact net of left sectionaliser left end, by the first breaker of concatenation, on third current transformer and first, cable is just on the second tunnel
It is closely connected in the contact net transition region between the first left sectionaliser and the first right sectionaliser, third road passes through the first upper right of concatenation
Net breaker, the second current transformer and the first upper right cable are connected to nearby on the contact net of the first right sectionaliser right end.
The test lead of the intermediate switching station is the 4th current transformer, the 5th current transformer, the 6th current transformer
And the test lead for the second voltage mutual inductor being installed between the contact net and rail of intermediate switching station, the intermediate switching station
Control terminal is the control terminal of the second upper left net breaker, the second upper right net breaker, the second breaker；The intermediate switching station
It is divided into three tunnels after second bus concatenation second voltage mutual inductor, the first via passes through concatenation the second upper left net breaker, the 4th electric current
Mutual inductor and the second upper left cable are connected to nearby on the contact net of the second left sectionaliser left end, and the second tunnel is disconnected by concatenation second
Cable is connected to the contact between the second left sectionaliser and the second right sectionaliser nearby on road device, the 6th current transformer and second
In net transition region, third road is connected nearby by the second upper right net breaker of concatenation, the 5th current transformer and the second upper right cable
It is connected on the contact net of the second right sectionaliser right end.
The test lead of the You Lin switching station is the test lead of the 7th current transformer, the control terminal of the You Lin switching station
For the control terminal of third upper right net breaker；The third bus concatenation tertiary voltage mutual inductor of the You Lin switching station divides after drawing
Cheng Sanlu, the first via are connected to nearby by concatenation third upper left net breaker, the 7th current transformer and third upper left cable
On the contact net of the left sectionaliser left end of third, the second tunnel passes through concatenation third breaker, the 9th current transformer and third online
Line is connected to nearby in the contact net transition region between the left sectionaliser of third and the right sectionaliser of third, and third road passes through concatenation third
Upper right net breaker, the 8th current transformer and third upper right cable are connected to the contact net of the right sectionaliser right end of third nearby
On.
In order to solve the above-mentioned technical problem, the utility model is needed by following technical solution again to realize its function:
A kind of electric railway switching station event using fault detection means described in any one of above-mentioned technical proposal
Hinder detection method, wherein the fault detection means is installed on intermediate switching station, if train current transformer net side closes the reaction time
For △ t1, the contact net breaker open operation time is △ t2, and train current transformer detects that contact net voltage normally restores normal work afterwards
The time interval of work is △ t3, and the time interval of reclosing is the specific step of the △ t4 fault detection method after contact net T short circuit
It is rapid as follows:
Whether the voltage value U2 for judging that second voltage mutual inductor YH2 is measured is lower than state threshold UT；
If so, train decompression and it is in decompression range, the closing of train current transformer net side, at this time load after △ is t1 second
=0, while setting △ t1+ △ t3 > △ t2+ △ t4；If conversely, if train operation it is normal.
Preferably, when train is under decompression state, the specific steps are as follows:
If the difference for the electric current I32 that electric current I23 and the 7th current transformer that the 5th current transformer measures are measured is absolute
Value is greater than out-of-balance current △ I, i.e. ▕ I23-I32 ▏ > △ I then assert the contact net between intermediate switching station and You Lin switching station
Short trouble occurs for T, and the opening and closing section between intermediate switching station and You Lin switching station is faulty section, and the fault detection means issues
Separating brake order, the second breaker of intermediate switching station, the second upper right net breaker, You Lin switching station third upper left net after △ is t2 seconds
The equal separating brake of breaker, while contact net transition region decompression, faulty section are isolated, faulty section two sides are opened and closed the contact net T voltage of section
Restore normal.
It is further preferred that the train of decompression range is still in unsteady flow within the △ t1+ △ t3 t4 seconds periods of > △ t2+ △
Device net side closed state, i.e. load=0, after △ t2+ △ t4 seconds, switching station's the second upper right net among fault detection means order
Breaker (DL23) He Youlin switching station's third upper left net breaker reclosing, if reclosing success, faulty section restores normal
Power supply, the second breaker closing of simultaneous faults detection device order centre switching station, if unsuccessful reclosing, fault detection dress
It sets and adjusts information transmitting terminal to the permanent short failure of contact net between the intermediate switching station of electricity tune report and You Lin switching station by electricity
Information, tissue repairing, while electricity adjusts report line tune, the whole route map of train of row tune；After the completion of repairing, restores normal power supply, be
System restores normal.
Preferably, when train is under decompression state, the specific steps are as follows: if the electric current that the 4th current transformer measures
The absolute value of the difference for the electric current I12 that I21 and the second current transformer measure is greater than out-of-balance current △ I, i.e. ▕ I21-I12 ▏ > △
I then assert that short trouble, intermediate switching station and Zuo Lin switching station occur for the contact net between intermediate switching station and Zuo Lin switching station
Between opening and closing section be faulty section, fault detection means issues separating brake order, and intermediate switching station (KB2) second is broken after △ is t2 second
Road device (DL2), the second upper left net breaker, Zuo Lin switching station the first upper right net breaker open operation, contact net transition region decompression, therefore
Barrier section is isolated, and the contact net T voltage that faulty section two sides are opened and closed section restores normal.
It is further preferred that the train of decompression range is still in unsteady flow within the △ T1+ △ T3 T4 seconds periods of > △ T2+ △
Device net side closed state, i.e. load=0, after △ t2+ △ t4 seconds, switching station's the second upper left net among fault detection means order
Breaker and Zuo Lin switching station the first upper right net breaker reclosing, if reclosing success, faulty section restores normal power supply, together
When fault detection means order among the second breaker closing of switching station, if unsuccessful reclosing, fault detection means passes through
Electricity adjusts information transmitting terminal to adjust the permanent short fault message for reporting contact net between intermediate switching station and Zuo Lin switching station, group to electricity
Repairing is knitted, while electricity adjusts report line tune, adjusts route map of train；After the completion of repairing, restore normal power supply, system restores normal.
It is further preferred that when train is under decompression state, the specific steps are as follows: if the 6th current transformer measures
Electric current I2 > 0, then assert that short trouble occurs for the contact net transition region of intermediate switching station outlet, fault detection means issues point
Lock order, the second breaker DL2 separating brake of intermediate switching station after △ is t2 seconds, in the △ t1+ △ t3 t4 seconds periods of > △ t2+ △
Interior, the train of decompression range is still in current transformer net side closed state, i.e. load=0, after △ t2+ △ t4 seconds, fault detection
Second breaker reclosing of switching station between device hit, if reclosing success, contact net transition region restores normal power supply, such as
Fruit unsuccessful reclosing, then fault detection means adjusts information transmitting terminal to adjust to electricity and reports intermediate switching station outlet contact net mistake by electricity
The permanent short fault message in area, tissue repairing are crossed, while electricity adjusts report line tune, the whole route map of train of row tune；Repairing is completed
Afterwards, restore normal power supply, system restores normal.
Compared with prior art, the utility model has the beneficial effects that
One, two sectionalisers are set on the contact net of switching station outlet, transition region is set among it, it can be with most simply
Main junction and its fault detection method non-faulting section is connect come its pantograph when train being avoided to drive into faulty section from non-faulting section
It touches net and is shorted with faulty section contact net and causes new short circuit accident.
Two, it sets train current transformer net side and closes the reaction time as △ t1, the contact net breaker open operation time is △ t2, train
It is △ t3 that current transformer, which detects that contact net voltage normally restores the time interval worked normally afterwards, reclosing after contact net short circuit
Time interval is △ t4；Two sectionalisers in setting left and right, are arranged transition region, transition among it on the contact net of switching station outlet
Area is straightened by the self coupling of switching station and connects power supply, is respectively divided the contact net at both ends by the sectionaliser at both ends；Due to △ t1 <
△ t2 < △ t3 and △ t4 can avoid train band negative when selecting △ t1+ △ t3 > △ t2+ △ t4 with simplest method
The phenomenon that lotus enters non-Electric region, would not cause arcing and scaling loss, even blow contact net and cause accident and hidden danger.
Three, it can find, distinguish accurately and in time, various contact net failures are isolated, while guaranteeing that fault-free section continues
Power supply, operation, reduce scope of power outage to the maximum extent, the extension for avoiding failure from influencing, and further increase Traction networks power supply
Reliability.
Four, the relevant apparatus investment being related to is less, easy to implement, both uses convenient for new line, is also convenient for old line transformation.
Detailed description of the invention
Fig. 1 is the schematic diagram of electrified iron direct supply system described in the utility model embodiment one.
Fig. 2 is the input/output relation of the fault detection means of electric railway switching station in the utility model embodiment one
Figure.
Specific embodiment
The utility model will be further described with reference to the accompanying drawings and detailed description:
In order to make those skilled in the art more fully understand the technical solution of the utility model, with reference to the accompanying drawing and have
The utility model is described in further detail for body embodiment.
Embodiment one
As depicted in figs. 1 and 2, the utility model embodiment provides a kind of fault detection dress of electric railway switching station
It sets, is installed on and states in intermediate switching station KB2, which is separately connected Zuo Lin switching station KB1, intermediate opening and closing
The test lead of institute KB2, You Lin switching station KB3, output end connect Zuo Lin switching station KB1, centre switching station KB2, right adjacent opening and closing
The control terminal and electricity of institute KB3 adjusts information transmitting terminal DD, wherein the Zuo Lin switching station KB1, centre switching station KB2, right adjacent opening and closing
Institute KB3 is arranged two on the contact net T respectively exported respectively and is connected between sectionaliser and sectionaliser by transition region Ta.
In the utility model embodiment, the test lead of the Zuo Lin switching station KB1 is the second current transformer LH12's
Test lead, the control terminal of the Zuo Lin switching station KB1 are the control terminal of the first upper right net breaker DL12；The Zuo Lin switching station
It is divided into three tunnels after the first bus MX1 of KB1, the first via passes through the first upper left net breaker DL10, the first current transformer LH10
It is connected to nearby with the first upper left cable SW10 on the contact net T of the first left end left sectionaliser FD1a, the second tunnel is disconnected by first
Cable SW1 is connected to right point of the first left sectionaliser FD1a and first nearby on road device DL1, third current transformer LH1 and first
On contact net transition region Ta between section device FD1b, third road passes through the first upper right net breaker DL12, the second current transformer
LH12 and the first upper right cable SW12 are connected to nearby on the contact net T of the first right sectionaliser FD1b right end.
In the utility model embodiment, the test lead of the intermediate switching station KB2 is the 4th current transformer LH21, the
The control terminal of five current transformer LH23 and the 6th current transformer LH2, the intermediate switching station KB2 are the net open circuit of the second upper left
Device DL21, the second upper right net breaker DL23, the second breaker DL2；Divide after the second bus MX2 of the intermediate switching station KB2
Cheng Sanlu, the first via pass through the second upper left net breaker DL21, the 4th current transformer LH21 and the second upper left cable SW21 just
It is closely connected on the contact net T of the second left end left sectionaliser FD2a, the second tunnel passes through the second breaker DL2, the 6th Current Mutual Inductance
Cable SW2 is connected to the contact net between the second left right sectionaliser FD2b of sectionaliser FD2a and second nearby on device LH2 and second
On transition region Ta, third road passes through the second upper right net breaker DL23, the 5th current transformer LH23 and the second upper right cable
SW23 is connected to nearby on the contact net T of the second right sectionaliser FD2b right end.
In the utility model embodiment, the test lead of the You Lin switching station KB3 is the 7th current transformer LH32's
Test lead, the control terminal of the You Lin switching station KB3 are the control terminal of third upper right net breaker DL32；The You Lin switching station
It is divided into three tunnels after the third bus MX3 of KB3, the first via passes through third upper left net breaker DL32, the 7th current transformer LH32
It is connected to nearby with third upper left cable SW32 on the contact net T of the left end third left sectionaliser FD3a, the second tunnel is disconnected by third
Cable SW3 is connected to the left sectionaliser FD3a of third and the third right side point nearby in road device DL3, the 9th current transformer LH3 and third
On contact net transition region Ta between section device FD3b, third road passes through third upper right net breaker DL34, the 8th current transformer
LH34 and third upper right cable SW34 are connected to nearby on the contact net T of the right sectionaliser FD3b right end of third.
In the utility model embodiment, first voltage mutual inductor YH1 is the contact net T for being installed on Zuo Lin switching station KB1
With the voltage transformer between rail R；Second voltage mutual inductor YH2 is the contact net T and rail for being installed on intermediate switching station KB2
Voltage transformer between R；Tertiary voltage mutual inductor YH3 is to be installed between the contact net T and rail R of intermediate switching station KB3
Voltage transformer.
Continue according to Fig.2, the input terminal of the fault detection means of the intermediate switching station KB2 connects Zuo Lin switching station
The of the 7th current transformer LH32 and centre switching station KB2 of second current transformer LH12, You Lin switching station KB3 of KB1
Six current transformer LH2, the 4th current transformer LH21, the 5th current transformer LH23 and second voltage mutual inductor YH2
Measurement end, the online of the right side first breaker of the output end connection Zuo Lin switching station KB1 of the fault detection means of intermediate switching station KB2
DL12, the second upper left net breaker DL21 of centre switching station KB2, the second upper right net breaker DL23, the second breaker DL2 and
The control terminal and electricity of the third upper left net breaker DL32 of You Lin switching station KB3 adjusts information transmitting terminal DD.
Fault detection means described in the utility model needs to realize its function, institute by switching station's fault detection method
It states fault detection means and is installed on intermediate switching station KB2, if it is △ t1, contact net T that train current transformer net side, which closes the reaction time,
The breaker open operation time is △ t2, and the time interval that train current transformer detects that contact net voltage normally restores to work normally afterwards is
△ t3, the time interval of reclosing is that specific step is as follows for the △ t4 detection method after contact net T short circuit: judging second voltage
Whether the voltage value U2 that mutual inductor YH2 is measured is lower than state threshold UT；
If so, train decompression and it is in decompression range, the closing of train current transformer net side, at this time load after △ is t1 second
=0, while setting △ t1+ △ t3 > △ t2+ △ t4；If conversely, if train operation it is normal.In the utility model embodiment, institute
It states state threshold UT and refers to contact net voltage drop as low as the voltage value for making train cisco unity malfunction, existing motor-car takes 16.6kV.
The length of contact net transition region Ta determines by the product of train speed per hour and breaker open operation time △ t2, such as；Train speed per hour=
360km/h, the breaker open operation time △ t2=0.1 seconds, then length >=10m of contact net transition region Ta.The out-of-balance current
△ I is the usual very little, close to 0 as caused by contact net unevenness, distribution capacity and current transformer measurement error etc..
When train is under decompression state, the specific steps are as follows: if the electric current I23 that the 5th current transformer LH23 is measured
It is greater than out-of-balance current △ I, i.e. ▕ I23-I32 ▏ > with the absolute value of the difference of the 7th current transformer LH32 electric current I32 measured
△ I then assert that short trouble, intermediate switching station KB2 occur for the contact net T between intermediate switching station KB2 and You Lin switching station KB3
Opening and closing section between You Lin switching station KB3 is faulty section, and the fault detection means issues separating brake order, after △ is t2 seconds in
Between the second breaker of switching station KB2 DL2, second upper right net breaker DL23, You Lin switching station KB3 third upper left net breaker
The equal separating brake of DL32, while contact net transition region Ta decompression, faulty section are isolated, faulty section two sides are opened and closed the contact net T voltage of section
Restore normal.
Within the △ t1+ △ t3 t4 seconds periods of > △ t2+ △, the train of decompression range closes shape still in current transformer net side
State, i.e. load=0, after △ t2+ △ t4 seconds, switching station KB2 the second upper right net breaker among fault detection means order
DL23 and You Lin switching station KB3 third upper left net breaker DL32 reclosing, if reclosing success, faulty section restores normal and supplies
Electricity, simultaneous faults detection device order centre switching station KB2 the second breaker DL2 closes a floodgate, if unsuccessful reclosing, failure inspection
It surveys device and adjusts information transmitting terminal DD to report contact net T between intermediate switching station KB2 and You Lin switching station KB3 to electric adjust by electricity
Permanent short fault message, tissue repairing, while electricity adjusts report line tune, the whole route map of train of row tune；After the completion of repairing, restore
Normal power supply, system restore normal.
When train is under decompression state, the specific steps are as follows: if the electric current I21 that the 4th current transformer LH21 is measured
It is greater than out-of-balance current △ I, i.e. ▕ I21-I12 ▏ > with the absolute value of the difference of the second current transformer LH12 electric current I12 measured
△ I then assert that short trouble, intermediate switching station KB2 occur for the contact net T between intermediate switching station KB2 and Zuo Lin switching station KB1
Opening and closing section between Zuo Lin switching station KB1 is faulty section, and fault detection means issues separating brake order, intermediate after △ is t2 seconds to open
Close the second breaker of institute KB2 DL2, second upper left net breaker DL21, Zuo Lin the first upper right of switching station KB1 net breaker DL12 points
Lock, contact net transition region Ta decompression, faulty section are isolated, and the contact net T voltage that faulty section two sides are opened and closed section restores normal.
Within the △ T1+ △ T3 T4 seconds periods of > △ T2+ △, the train of decompression range closes shape still in current transformer net side
State, i.e. load=0, after △ t2+ △ t4 seconds, the second upper left switching station KB2 net breaker among fault detection means order
DL21 and Zuo Lin switching station KB1 the first upper right net breaker DL12 reclosing, if reclosing success, faulty section restores normal and supplies
Electricity, simultaneous faults detection device order centre switching station KB2 the second breaker DL2 closes a floodgate, if unsuccessful reclosing, failure inspection
It surveys device and adjusts information transmitting terminal DD to report contact net T between intermediate switching station KB2 and Zuo Lin switching station KB1 to electric adjust by electricity
Permanent short fault message, tissue repairing, while electricity adjusts report line tune, adjusts route map of train；After the completion of repairing, restore normal
Power supply, system restore normal.
When train is under decompression state, the specific steps are as follows: if the electric current I2 > that the 6th current transformer LH2 is measured
0, then assert that short trouble occurs for the contact net transition region Ta of the intermediate outlet switching station KB2, fault detection means issues separating brake life
It enables, the second breaker DL2 separating brake of intermediate switching station KB2 after △ is t2 seconds, within the △ t1+ △ t3 t4 seconds periods of > △ t2+ △,
The train of decompression range is still in current transformer net side closed state, i.e. load=0, after △ t2+ △ t4 seconds, fault detection means
The second breaker DL2 reclosing of switching station KB2 between hit, if reclosing success, contact net transition region Ta restores normal and supplies
Electricity, if unsuccessful reclosing, fault detection means adjusts information transmitting terminal DD to adjust to electricity and reports that intermediate switching station KB2 goes out by electricity
The permanent short fault message of mouth contact net transition region Ta, tissue repairing, while electricity adjusts report line tune, the whole train operation of row tune
Figure；After the completion of repairing, restore normal power supply, system restores normal.
In order to be best understood from the utility model embodiment, the working principle of the utility model embodiment is described in detail herein,
It is specific as follows:
When contacting network short circuit fault, contact net voltage train decompression lower than state threshold UT, train current transformer net side is closed
It closes, load=0, contact net short dot two sides breaker open operation, if it is △ t1, contact that train current transformer net side, which closes the reaction time,
The net breaker open operation time is △ t2, and train current transformer detects that contact net voltage normally restores the time interval worked normally afterwards
For △ t3, the time interval of reclosing is △ t4 after contact net short circuit；The setting left and right two on the contact net of switching station outlet
Transition region is arranged in sectionaliser among it, and transition region is straightened by the self coupling of switching station and connects power supply, respectively will by the sectionaliser at both ends
The contact net at both ends is divided；Due to △ t1 < △ t2 < △ t3 and △ t4, and assume △ t1+ △ t3 > △ t2+ △ t4, then,
When contacting network short circuit fault, the breaker open operation at faulty section both ends, contact net transition region breaker open operation, material is thus formed
Three kinds of normal reach, contact net transition region and faulty section sections.Normal reach restores normal power supply at this time, but in short-circuit decompression model
It encloses, contact net transition region and faulty section are without electricity, and the train current transformer net side within the scope of decompression is closed, i.e. train load=0, train
It is not on-load when entering the contact net transition region without electricity by the sectionaliser that the switching station exports by normal reach, therefore can
Enter non-Electric region to avoid train on-load, arcing and scaling loss would not be caused, even contact net is blown and cause showing for accident
As and hidden danger, while contact net transition region breaker open operation and without electricity, can be driven into avoid train from normal reach (non-faulting section)
The contact net of non-faulting section contact net and faulty section is shorted and causes new short circuit by its pantograph when faulty section.
Detailed description are as follows for the specific embodiment of the utility model embodiment: in the intermediate switching station KB2, when second
When the voltage U2 that voltage transformer YH2 is measured is lower than state threshold UT, the train decompression of decompression range, train unsteady flow after △ t1 seconds
Device net side is closed, load=0, if △ t1+ △ t3 > △ t2+ △ t4:
(1) if the electric current I32 that electric current I23 and the 7th current transformer LH32 that the 5th current transformer LH23 is measured are measured
Absolute value of the difference be greater than out-of-balance current △ I, i.e. ▕ I23-I32 ▏ > △ I, then assert intermediate switching station KB2 and right adjacent be opened and closed
Short trouble occurs for the contact net T between institute KB3, and the opening and closing section between intermediate switching station KB2 and You Lin switching station KB3 is failure
Section, fault detection means issue separating brake order, and intermediate the second breaker of switching station KB2 DL2, the second upper right net are disconnected after △ is t2 seconds
Road device DL23, You Lin switching station KB3 third upper left net breaker DL32 separating brake, contact net transition region Ta decompression, faulty section by every
From the contact net voltage that faulty section two sides are opened and closed section restores normal, but in △ t1+ △ t3 (> △ t2+ △ t4) in period second, loses
Press the train of range still in current transformer net side closed state, i.e. load=0, after △ t2+ △ t4 seconds, fault detection means life
Intermediate switching station KB2 the second upper right net breaker DL23 and You Lin switching station KB3 third upper left net breaker DL32 reclosing is enabled,
If reclosing success, faulty section restores normal power supply, while intermediate switching station KB2 the second breaker DL2 being ordered to close a floodgate, if
Unsuccessful reclosing, then fault detection means adjusts information transmitting terminal DD to adjust to electricity and reports that intermediate switching station KB2 is opened with right neighbour by electricity
The permanent short fault message of contact net T between institute KB3, tissue repairing are closed, while electricity adjusts report line tune, adjusts train operation
Figure；After the completion of repairing, restore normal power supply, system restores normal.
(2) if the electric current I12 that electric current I21 and the second current transformer LH12 that the 4th current transformer LH21 is measured are measured
Absolute value of the difference be greater than out-of-balance current △ I, i.e. ▕ I21-I12 ▏ > △ I, then assert intermediate switching station KB2 and left adjacent be opened and closed
Short trouble occurs for the contact net T between institute KB1, and the opening and closing section between intermediate switching station KB2 and Zuo Lin switching station KB1 is failure
Section, fault detection means issue separating brake order, and intermediate the second breaker of switching station KB2 DL2, the second upper left net are disconnected after △ is t2 seconds
Road device DL21, Zuo Lin switching station KB1 the first upper right net breaker DL12 separating brake, contact net transition region Ta decompression, faulty section by every
From the contact net voltage that faulty section two sides are opened and closed section restores normal, but in △ t1+ △ t3 (> △ t2+ △ t4) in period second, loses
Press the train of range still in current transformer net side closed state, i.e. load=0, after △ t2+ △ t4 seconds, fault detection means life
The second upper left intermediate switching station KB2 net breaker DL21 and Zuo Lin switching station KB1 the first upper right net breaker DL12 reclosing is enabled,
If reclosing success, faulty section restores normal power supply, while intermediate switching station KB2 the second breaker DL2 being ordered to close a floodgate, if
Unsuccessful reclosing, then fault detection means adjusts information transmitting terminal DD to adjust to electricity and reports that intermediate switching station KB2 is opened with left neighbour by electricity
The permanent short fault message of contact net T between institute KB1, tissue repairing are closed, while electricity adjusts report line tune, adjusts train operation
Figure；After the completion of repairing, restore normal power supply, system restores normal.
(3) if the electric current I2 > 0 that the 6th current transformer LH2 is measured, assert the contact net of the intermediate outlet switching station KB2
Short trouble occurs for transition region Ta, and fault detection means issues separating brake order, and the second of intermediate switching station KB2 is disconnected after △ is t2 seconds
Road device DL2 separating brake, in △ t1+ △ t3 (> △ t2+ △ t4) in period second, the train of decompression range is closed still in current transformer net side
Closed state, i.e. load=0, after △ t2+ △ t4 seconds, the second breaker DL2 weight of switching station KB2 between fault detection means hit
It closes a floodgate, if reclosing success, contact net transition region Ta restores normal power supply, if unsuccessful reclosing, fault detection means
Adjust information transmitting terminal DD to the permanent short failure letter of the intermediate switching station KB2 outlet contact net transition region Ta of electricity tune report by electricity
Breath, tissue repairing, while electricity adjusts report line tune, adjusts route map of train；After the completion of repairing, restore normal power supply, system is restored
Normally.
Above are merely preferred embodiments of the utility model, it is noted that above-mentioned preferred embodiment should not regard
For limitations of the present invention, the protection scope of the utility model should be defined by the scope defined by the claims..For
For those skilled in the art, without departing from the spirit and scope of the utility model, it can also make several
Improvements and modifications, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (4)
1. a kind of electric railway switching station fault detection means chooses three switching stations adjacent in electrified iron direct supply system
For section, it is denoted as Zuo Lin switching station (KB1), intermediate (KB2) He Youlin switching station, switching station (KB3) respectively, it is characterised in that: in
Between switching station (KB2) be equipped with fault detection means, the input terminal of the fault detection means be separately connected Zuo Lin switching station (KB1),
Intermediate switching station (KB2), You Lin switching station (KB3) test lead, output end connects Zuo Lin switching station (KB1), intermediate opening and closing
Institute (KB2), the control terminal of You Lin switching station (KB3) and electricity adjust information transmitting terminal (DD), wherein Zuo Lin switching station (KB1), centre
Two sectionalisers, and sectionaliser is respectively set in switching station (KB2), You Lin switching station (KB3) on the contact net (T) respectively exported
Between by transition region (Ta) connect.
2. a kind of electric railway switching station fault detection means according to claim 1, it is characterised in that: the left neighbour
The test lead of switching station (KB1) is the test lead of the second current transformer (LH12), and the control terminal of Zuo Lin switching station (KB1) is the
The control terminal of one upper right net breaker (DL12)；The first bus (MX1) of the Zuo Lin switching station (KB1) is divided into three after drawing
Road, the first via pass through the first upper left net breaker (DL10) of concatenation, the first current transformer (LH10) and the first upper left cable
(SW10) it is connected on the contact net (T) of the first left sectionaliser (FD1a) left end nearby, the second tunnel passes through the first breaker of concatenation
(DL1), cable (SW1) is connected to the first left sectionaliser (FD1a) and first nearby on third current transformer (LH1) and first
In contact net transition region (Ta) between right sectionaliser (FD1b), third road by concatenation the first upper right net breaker (DL12),
Second current transformer (LH12) and the first upper right cable (SW12) are connected to connecing for the first right sectionaliser (FD1b) right end nearby
It touches net on (T).
3. a kind of electric railway switching station fault detection means according to claim 1, it is characterised in that: the centre
The test lead of switching station (KB2) is the 4th current transformer (LH21), the 5th current transformer (LH23) and the 6th Current Mutual Inductance
Device (LH2) and the second voltage mutual inductor (HY2) being installed between the contact net (T) of intermediate switching station (KB2) and rail (R)
Test lead, the control terminal of the intermediate switching station (KB2) are the second upper left net breaker (DL21), the second upper right net breaker
(DL23), the control terminal of the second breaker (DL2)；The second bus (MX2) of the intermediate switching station (KB2) concatenates second voltage
It is divided into three tunnels after mutual inductor (YH2), the first via passes through concatenation the second upper left net breaker (DL21), the 4th current transformer
(LH21) it is connected on the contact net (T) of the second left sectionaliser (FD2a) left end nearby with the second upper left cable (SW21), second
Road is connected to second by cable (SW2) on concatenation the second breaker (DL2), the 6th current transformer (LH2) and second nearby
In contact net transition region (Ta) between left sectionaliser (FD2a) and the second right sectionaliser (FD2b), third road passes through concatenation second
Upper right net breaker (DL23), the 5th current transformer (LH23) and the second upper right cable (SW23) are connected to second right point nearby
On the contact net (T) of section device (FD2b) right end.
4. a kind of electric railway switching station fault detection means according to claim 1, it is characterised in that: the right neighbour
The test lead of switching station (KB3) is the test lead of the 7th current transformer (LH32), the control terminal of the You Lin switching station (KB3)
For the control terminal of third upper right net breaker (DL32)；The third bus (MX3) of the You Lin switching station (KB3) is divided into after drawing
Three tunnels, the first via pass through concatenation third upper left net breaker (DL32), the 7th current transformer (LH32) and third upper left cable
(SW32) it is connected on the contact net (T) of the left end the left sectionaliser of third (FD3a) nearby, the second tunnel passes through concatenation third breaker
(DL3), cable (SW3) is connected to the left sectionaliser of third (FD3a) and third nearby in the 9th current transformer (LH3) and third
In contact net transition region (Ta) between right sectionaliser (FD3b), third road by concatenation third upper right net breaker (DL34),
8th current transformer (LH34) and third upper right cable (SW34) are connected to connecing for third right sectionaliser (FD3b) right end nearby
It touches net on (T).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821382072.7U CN208672745U (en) | 2018-08-24 | 2018-08-24 | A kind of electric railway switching station fault detection means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821382072.7U CN208672745U (en) | 2018-08-24 | 2018-08-24 | A kind of electric railway switching station fault detection means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208672745U true CN208672745U (en) | 2019-03-29 |
Family
ID=65839520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821382072.7U Active CN208672745U (en) | 2018-08-24 | 2018-08-24 | A kind of electric railway switching station fault detection means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208672745U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110239398A (en) * | 2019-06-20 | 2019-09-17 | 西南交通大学 | A kind of cophase supply traction substation protection for feed line trip method |
-
2018
- 2018-08-24 CN CN201821382072.7U patent/CN208672745U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110239398A (en) * | 2019-06-20 | 2019-09-17 | 西南交通大学 | A kind of cophase supply traction substation protection for feed line trip method |
| CN110239398B (en) * | 2019-06-20 | 2020-12-18 | 西南交通大学 | In-phase power supply traction substation feeder protection tripping method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109031046A (en) | A kind of electric railway switching station fault detection means and its method | |
| CN105034856B (en) | A kind of electric neutral section of attached wires of AC electrified railway intelligence | |
| CN104325896B (en) | A kind of electric railway traction net sectional power supply distributed protection system | |
| CN102963271B (en) | Section power supply and status measurement and control method of parallel-connected traction networks at tail end of double track railway | |
| CN107351730A (en) | A kind of electric railway train does not power off automatic neutral-section passing system and its operation method | |
| CN109318720A (en) | A kind of multi-standard EMU high voltage supply system and train | |
| CN103151763A (en) | Fault identification and protection method of electrified railway AT traction network | |
| CN109031047A (en) | A kind of electric railway AT fault detection means and its method | |
| CN105501069A (en) | Dual-mode current collection system and method | |
| CN110239398A (en) | A kind of cophase supply traction substation protection for feed line trip method | |
| CN208736961U (en) | A kind of electric railway AT fault detection means | |
| CN106114294A (en) | A kind of non-shut-brake neutral-section passing system of EMUs and fault recognition method | |
| CN208672745U (en) | A kind of electric railway switching station fault detection means | |
| CN103241138B (en) | Low-frequency traction power supply system | |
| CN109228872A (en) | Power supply system of train and its detection of electrical leakage positioning device, method and train | |
| CN108909541B (en) | Power supply structure for AT of electrified railway | |
| CN108773300B (en) | High-voltage system of power supply of contact network and application thereof | |
| CN208665010U (en) | A kind of electric railway AT institute powered construction | |
| CN204978290U (en) | Electric Railway pulls power supply structure | |
| CN104924922B (en) | Bilateral combination jump protection system of direct-current traction power supply system based on digital communications | |
| CN104934949B (en) | DC traction power-supply system two-sided anti-interference protection system based on fiber optic communication | |
| CN108773301B (en) | Control method and application of high-voltage system of power supply of contact network | |
| CN114024307B (en) | Rail transit vehicle and multi-stream conversion control method and system thereof | |
| CN110525274A (en) | A kind of EMU alternating current-direct current circuit on side of overhead contact line and its control method | |
| CN108995563A (en) | A kind of electric railway switching station powered construction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |