CN116937795A

CN116937795A - Discharging method and device for contact net, discharging system and storage medium

Info

Publication number: CN116937795A
Application number: CN202310810462.9A
Authority: CN
Inventors: 曾显光; 谢荣发; 樊帆; 宋柏佑; 张瑞棠
Original assignee: Zhuhai Unitech Power Technology Co Ltd
Current assignee: Zhuhai Unitech Power Technology Co Ltd
Priority date: 2023-07-03
Filing date: 2023-07-03
Publication date: 2023-10-24

Abstract

The invention relates to the technical field of rail transit detection, and discloses a discharging method, a discharging device, a discharging system and a storage medium of a contact net, which are used for improving the operation safety of the discharging of the contact net. The discharging system comprises at least one electricity testing component and a discharger, and the discharging method of the contact net comprises the following steps: detecting whether a discharge system has an electricity-checking identifier, whether an isolating switch of the contact net is in a split position or not, and detecting whether the contact net is electrified or not through at least one electricity-checking component; if the discharge system is detected to have the electricity verification mark, the disconnecting switch is in a separated position and the contact net is electrified, the discharger is controlled by the preset discharge instruction to keep the disconnecting switch in a separated position state and lock, and the contact net is connected with the track to discharge.

Description

Discharging method and device for contact net, discharging system and storage medium

Technical Field

The invention relates to the technical field of rail transit detection, in particular to a discharging method, a discharging device, a discharging system and a storage medium of a contact net.

Background

In rail transit, when overhauling a running area of a rail locomotive or overhauling the rail locomotive in a vehicle section in an overhauling warehouse, in order to ensure the operation safety of overhauling staff, a contact net of the running area and the vehicle section in the overhauling warehouse needs to be powered off, and residual voltage needs to be discharged after the contact net is powered off.

At present, the mode of manual electricity inspection and grounding wire hanging is generally adopted for discharging, the process of the existing mode is complicated and complicated, and the safety risk of electric shock exists, so that the operation safety of the contact net discharging is lower.

Disclosure of Invention

The invention provides a discharging method, a discharging device, a discharging system and a storage medium of a contact net, which are used for keeping and locking an isolating switch in a split state in the discharging process of the contact net, so that the operation safety of the discharging of the contact net is improved.

The first aspect of the invention provides a discharging method of a contact net, which is applied to a discharging system, wherein the discharging system comprises at least one electricity testing component and a discharger, and the discharging method of the contact net comprises the following steps: detecting whether an electricity testing identifier exists in the discharging system, whether an isolating switch of the contact net is in a split position or not, and detecting whether the contact net is electrified or not through the at least one electricity testing component; if the discharge system is detected to have an electricity verification mark, the isolating switch is in a separated position and the contact net is electrified, the discharger is controlled by a preset discharge instruction to keep the isolating switch in a separated position and lock, and the contact net is connected with a track to discharge.

In a possible implementation manner, the controlling the discharger to keep the disconnecting switch in a separated state and lock by a preset discharging instruction, and discharging the contact net and the track connection includes: electrifying the discharger through a preset discharge instruction; acquiring state information of the discharger, wherein the state information of the discharger is used for indicating whether the discharger works in a discharging state; and if the state information of the discharger indicates that the discharger works in a discharging state, controlling the discharger to keep the isolating switch in a separated state and lock, and discharging the contact net and the track connection.

In a possible embodiment, said detecting, by said at least one electroscopic component, whether said catenary is charged comprises: acquiring an actual voltage value of the contact net through the at least one electricity testing component, and performing voltage conversion to obtain at least one analog voltage value, wherein the analog voltage value corresponds to the electricity testing component one by one; performing voltage conversion on the at least one analog voltage value to obtain at least one target voltage value; if the at least one target voltage value is greater than or equal to a preset voltage value, determining that the contact net is electrified; and if the at least one target voltage value is smaller than the preset voltage value, determining that the contact net is not electrified.

In a possible embodiment, the number of the at least one electroscopic component is two, the number of the at least one target voltage value is two, and after the determining that the contact network is charged, the method further comprises: calculating a difference between the two target voltage values; if the difference value is greater than or equal to a preset threshold value, generating fault prompt information, wherein the fault prompt information is used for indicating that at least one of the two electricity testing components fails.

In a possible implementation manner, after the detecting whether the discharge system has an electroscopic identifier, whether the isolating switch of the contact net is in a split position, and detecting whether the contact net is electrified through the at least one electroscopic component, the method further includes: if the fact that the electricity testing mark does not exist in the discharging system or the isolating switch is in the closed position is detected, forbidden operation prompt information is generated, and the forbidden operation prompt information is used for indicating that the contact network is not powered off and discharging operation is not allowed.

In a possible implementation manner, the discharging system further includes a grounding module, and after the discharger is controlled by a preset discharging instruction to keep the isolating switch in a separated state and locked, and the contact net is connected with a track to perform discharging, the discharging system further includes: detecting whether the contact net meets preset grounding conditions or not; and if the contact net meets the grounding condition, controlling the grounding module to perform grounding operation on the contact net, controlling the discharger to be electrified, and keeping the isolating switch in a split state and locking.

The second aspect of the invention provides a discharging device of a contact net, which is applied to a discharging system, wherein the discharging system comprises at least one electricity checking component and a discharger, and the discharging device of the contact net comprises: the first detection module is used for detecting whether an electricity-checking identifier exists in the discharge system, whether the isolating switch of the contact net is in a split position or not, and detecting whether the contact net is electrified or not through the at least one electricity-checking component; and the control module is used for controlling the discharger to keep the disconnecting switch in a separated state and lock the disconnecting switch through a preset discharging instruction and discharging the contact net and the track connection if the discharging system is detected to have the electricity verification mark and the disconnecting switch is in the separated position and the contact net is electrified.

In a possible embodiment, the control module is specifically configured to: electrifying the discharger through a preset discharge instruction; acquiring state information of the discharger, wherein the state information of the discharger is used for indicating whether the discharger works in a discharging state; and if the state information of the discharger indicates that the discharger works in a discharging state, controlling the discharger to keep the isolating switch in a separated state and lock, and discharging the contact net and the track connection.

In a possible embodiment, the first detection module is specifically configured to: acquiring an actual voltage value of the contact net through the at least one electricity testing component, and performing voltage conversion to obtain at least one analog voltage value, wherein the analog voltage value corresponds to the electricity testing component one by one; performing voltage conversion on the at least one analog voltage value to obtain at least one target voltage value; if the at least one target voltage value is greater than or equal to a preset voltage value, determining that the contact net is electrified; and if the at least one target voltage value is smaller than the preset voltage value, determining that the contact net is not electrified.

In a possible embodiment, the first detection module is specifically further configured to: calculating a difference between the two target voltage values; if the difference value is greater than or equal to a preset threshold value, generating fault prompt information, wherein the fault prompt information is used for indicating that at least one of the two electricity testing components fails.

In a possible embodiment, the discharging device of the contact net further comprises: the generation module is used for generating forbidden operation prompt information if the discharge system is detected to have no electricity verification mark or the isolating switch is in the closed position, wherein the forbidden operation prompt information is used for indicating that the contact network is not powered off and the discharge operation is not allowed.

In a possible embodiment, the discharging device of the contact net further comprises: the second detection module is used for detecting whether the contact net meets preset grounding conditions or not; and the operation module is used for controlling the grounding module to perform grounding operation on the contact net if the contact net meets the grounding condition, controlling the discharger to be electrified, and keeping the isolating switch in a split state and locking.

A third aspect of the present invention provides a discharge system comprising: the device comprises a controller, at least one electricity testing component and a discharger, wherein the controller is connected with the at least one electricity testing component and the discharger; one end of the electricity checking component is electrically connected with the contact net, and the other end of the electricity checking component is electrically connected with the controller and is used for acquiring an actual voltage value of the contact net and converting the actual voltage value into an analog voltage value; the input end of the discharger is electrically connected with the contact net, and the output end of the discharger is electrically connected with the track and is used for keeping and locking the isolating switch of the contact net in a separated state and discharging the contact net when the discharger works in a discharging state; the controller is used for converting the analog voltage value into a target voltage value, detecting whether the contact net is electrified or not based on the target voltage value, detecting whether the electricity-checking mark exists in the discharging system or not and whether the isolating switch is in a separated position or not, and controlling the discharger to keep the isolating switch in a separated position state and lock the isolating switch and discharging the contact net and the track connection when detecting that the contact net is electrified, the electricity-checking mark exists in the discharging system and the isolating switch is in the separated position.

In one possible embodiment, each of the electricity verification components comprises a fuse and a voltage sensor, the fuse is arranged between the contact network and the voltage sensor, and the input end of the discharger is connected with the output end of the fuse and the input end of the voltage sensor.

In one possible embodiment, the arrester comprises a first relay and a second relay; the first relay is electrically connected with the controller and is used for generating state information of the discharger and transmitting the state information to the controller; the second relay is arranged between the contact net and the track and is used for discharging the contact net and the track.

In one possible embodiment, the arrester further comprises a third relay; the third relay is connected in series with the isolating switch and is used for keeping the isolating switch in a split state and locking.

In a possible embodiment, the arrester further comprises an external disconnecting link locking module; the external disconnecting link locking module is connected with the controller and used for locking the split state of the isolating switch and keeping the isolating switch in the split state and locking.

In a possible embodiment, the arrester further comprises an insulating barrier; the insulating baffle is arranged between the movable contact and the fixed contact of the isolating switch, is connected with the controller, and is used for being placed between the movable contact and the fixed contact, contacting with the movable contact, and keeping the isolating switch in a separated state and locking.

A fourth aspect of the present invention provides a computer readable storage medium having instructions stored therein, which when run on a computer, cause the computer to perform the above-described method of discharging a catenary.

In the technical scheme provided by the invention, whether an electricity testing mark exists in a discharge system or not and whether an isolating switch of a contact net is in a split position is detected, and whether the contact net is electrified or not is detected through at least one electricity testing component; if the discharge system is detected to have the electricity verification mark, the disconnecting switch is in a separated position and the contact net is electrified, the discharger is controlled by the preset discharge instruction to keep the disconnecting switch in a separated position state and lock, and the contact net is connected with the track to discharge. In the embodiment of the invention, when the discharge system is detected to have the electricity verification mark and the isolating switch is in the separated state and the contact net is electrified, the control discharger keeps the isolating switch in the separated state and locks, and the contact net is connected with the track to discharge, so that the change state of the voltage of the contact net can be monitored in real time, workers in the operation site of the contact net discharge can be convenient to intuitively know whether the contact net is electrified, the isolating switch can be kept in the separated state and locked in the discharge process, and the closing of the isolating switch caused by incorrect operation is prevented, so that the contact net is electrified, the danger is caused to the workers in the operation site of the contact net discharge, and the operation safety of the contact net discharge is improved.

Drawings

Fig. 1 is a schematic diagram of an embodiment of a discharging method of a catenary according to an embodiment of the present invention;

fig. 2 is a schematic diagram of another embodiment of a discharging method of a catenary according to an embodiment of the present invention;

FIG. 3 is a schematic view of an embodiment of a discharging device of a catenary according to an embodiment of the present invention;

fig. 4 is a schematic view of another embodiment of a discharging device of the catenary according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of an embodiment of a discharging system according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of an embodiment of a discharging system discharging a catenary according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of an embodiment of a third relay powered in series with an isolation switch according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of one embodiment of three relays connected in parallel in an embodiment of the present invention;

FIG. 9 is a schematic view of an embodiment of the invention in which the isolation switch is kept in the separated position and locked by the insulating shutter;

fig. 10 is a schematic view of an embodiment of the invention in which the movable contact of the disconnecting switch is covered by an insulating cover.

Detailed Description

The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments described herein may be implemented in other sequences than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus.

For easy understanding, the following describes a specific flow of an embodiment of the present invention, referring to fig. 1, and an embodiment of a discharging method of a catenary in an embodiment of the present invention includes:

101. detecting whether a discharge system has an electricity-checking identifier, whether an isolating switch of the contact net is in a split position or not, and detecting whether the contact net is electrified or not through at least one electricity-checking component;

The discharge system includes at least one electroscope assembly, a discharger, and a controller.

It is understood that the execution body of the present invention may be a discharging device of the contact net, and may also be a controller, which is not limited herein. The embodiment of the invention is described by taking a controller as an execution main body.

It should be noted that, the controller detects whether the discharge system has the electricity inspection sign, whether the disconnecting switch of the contact net is in the branch position and whether the contact net is electrified simultaneously.

The electricity checking identification is a signal generated by triggering of external equipment, so that the controller receives the electricity checking identification, and in a discharging grounding scene, for example, a closing button of a grounding disconnecting link is arranged on an operation panel of the grounding cabinet, after the contact network is powered off, when the closing button of the grounding disconnecting link is pressed, the electricity checking identification is generated, and the controller obtains the electricity checking identification; or the control background sends a closing remote control instruction of the grounding disconnecting link to generate an electricity checking identification, and the electricity checking identification is sent to the controller in a communication transmission mode, so that the controller obtains the electricity checking identification.

It should be noted that, the electricity testing component can detect when the contact net is electrified to obtain an actual voltage value when the contact net is electrified, and can also detect when the contact net is powered off to obtain an actual voltage value when the contact net is powered off.

In a possible implementation manner, the discharging system further comprises a management background and a display module, the display module is arranged on an operation site of the overhead contact system, when the overhead contact system is electrified, the controller obtains an actual voltage value when the overhead contact system is electrified through the electricity checking component, the controller sends the actual voltage value when the overhead contact system is electrified to the management background and displays the voltage value through the management background, or the controller sends the actual voltage value when the overhead contact system is electrified to the display module and displays the voltage value through the display module. When the overhead line system is powered off, the controller acquires an actual voltage value when the overhead line system is powered off through the electricity checking component, and sends the actual voltage value when the overhead line system is powered off to the management background and displays the voltage value through the management background, or sends the actual voltage value when the overhead line system is powered off to the display module and displays the voltage value through the display module.

For example, the controller sends the actual voltage value of the overhead line system when the overhead line system is powered off to the LED screen on the operation site, and the actual voltage value of the overhead line system when the overhead line system is powered off is displayed through the LED screen.

Through showing the actual voltage value when cutting off the power supply of contact net, the change state of the voltage of contact net can be monitored in real time, the staff in the operation scene of contact net discharge of being convenient for carries out directly perceivedly and knows whether the contact net is electrified, has avoided the staff to carry out the operation of discharging under the circumstances of uncertain contact net electrified and has caused dangerous problem, has improved the operation security of contact net discharge.

In a possible implementation manner, the discharging system further comprises an external disconnecting link detection module, wherein the external disconnecting link detection module is used for collecting disconnecting link position information of the disconnecting link, generating state information of the disconnecting link according to the disconnecting link position information, and sending the state information of the disconnecting link to the controller, and the state information of the disconnecting link is used for indicating whether the disconnecting link is in a separated position or not.

It can be understood that the knife switch position information indicates that the knife switch is at a switch-on position or a switch-off position, and if the knife switch is at the switch-off position, the isolating switch is determined to be at the switch-off position. If the disconnecting link is at the closing position, the disconnecting link is determined to be at the closing position.

As an example and not by way of limitation, the external disconnecting link detection module may be an image acquisition device for acquiring a disconnecting link image of the disconnecting link, thereby obtaining disconnecting link position information; the sensor can also be used for detecting whether the movable contact and the fixed contact of the isolating switch are in contact or not, so that the position information of the disconnecting link is obtained, and the sensor is not limited herein and only needs to be capable of detecting whether the isolating switch is in a split position or not.

By detecting whether the isolating switch is in the separated position or not, the contact network can be discharged when the isolating switch is in the separated position (namely, the contact network is powered off) is determined, so that the problem that the isolating switch is switched on and powered on due to incorrect operation to cause danger to workers in the operation site of discharging the contact network is avoided.

102. If the discharge system is detected to have the electricity verification mark, the disconnecting switch is in a separated position and the contact net is electrified, the discharger is controlled by the preset discharge instruction to keep the disconnecting switch in a separated position state and lock, and the contact net is connected with the track to discharge.

The isolating switch is in the split position, namely, the contact network is powered off. The electrification of the contact net indicates that residual voltage exists after the contact net is powered off.

It should be noted that, only after the contact net is powered off, the contact net can be discharged, and the isolating switch needs to be kept in a separated state and locked in the discharging process, so that the isolating switch is prevented from being switched on due to incorrect operation, thereby leading to the electrification of the contact net, and further causing danger to workers in the operation site of the contact net discharging.

In a possible implementation manner, after detecting whether the discharge system has the electricity-checking identifier, whether the isolating switch of the contact net is in a split position, and detecting whether the contact net is electrified through at least one electricity-checking component, the method further comprises: if the fact that the electricity testing mark does not exist in the discharging system or the isolating switch is in the closed position is detected, operation prohibition prompt information is generated, and the operation prohibition prompt information is used for indicating that the contact net is not powered off and discharging operation is not allowed.

The isolating switch is in the closing position, namely the contact net is in the electrified state.

The operator contact net that can instruct the contact net to discharge through forbidden operation prompt message is in the energized state, avoids discharging when the contact net is in the energized state and causes dangerous problem.

In one possible implementation, the controller (1) detects whether the disconnecting switch of the contact net is in a split position when receiving the electricity verification identification; (2) When the isolating switch is detected to be in the split position, the controller detects whether the contact net is electrified or not through at least one electricity checking component; (3) When the contact net is detected to be electrified, the controller controls the discharger to keep the isolating switch in a split state and lock through a preset discharging instruction, and the contact net is connected with the track to discharge.

It can be understood that when the electricity verification identifier is received, whether the disconnecting switch is in a split state or not is firstly judged (namely, whether the contact net is powered off or not is judged), when the disconnecting switch is determined to be in the split state (namely, whether the contact net is powered off or not is judged), whether the contact net is electrified or not is detected through the electricity verification component (namely, whether the contact net has residual voltage after the power off or not is judged), when the contact net is determined to be electrified (namely, the contact net has residual voltage after the power off), the controller controls the discharger to keep the disconnecting switch in the split state and lock, and the contact net is connected with the track to discharge.

Through confirming that isolator is in branch position and contact net electrified, discharge again and contact the net, can ensure that the contact net is in the outage state to avoid causing danger to the staff, and keep isolator in branch position state and locking in the discharge process, so as to prevent to cause isolator to switch on because of wrong operation, thereby lead to the contact net to switch on, and then cause danger to the staff in the operation scene of contact net discharge, improved the operation security of contact net discharge.

In the embodiment of the invention, when the discharge system is detected to have the electricity verification mark and the isolating switch is in the separated state and the contact net is electrified, the control discharger keeps the isolating switch in the separated state and locks, and the contact net is connected with the track to discharge, so that the change state of the voltage of the contact net can be monitored in real time, workers in the operation site of the contact net discharge can be convenient to intuitively know whether the contact net is electrified, the isolating switch can be kept in the separated state and locked in the discharge process, and the closing of the isolating switch caused by incorrect operation is prevented, so that the contact net is electrified, the danger is caused to the workers in the operation site of the contact net discharge, and the operation safety of the contact net discharge is improved.

Referring to fig. 2, another embodiment of a discharging method of a catenary according to an embodiment of the present disclosure includes:

201. detecting whether a discharge system has an electricity-checking identifier, whether an isolating switch of the contact net is in a split position or not, and detecting whether the contact net is electrified or not through at least one electricity-checking component;

in a possible embodiment, the detection of whether the contact net is charged by at least one electroscopic component specifically comprises: (1) The controller obtains the actual voltage value of the contact net through at least one electricity testing component and performs voltage conversion to obtain at least one analog voltage value, wherein the analog voltage value corresponds to the electricity testing component one by one; (2) The controller performs voltage conversion on at least one analog voltage value to obtain at least one target voltage value; (3) If at least one target voltage value is greater than or equal to a preset voltage value, determining that the contact network is electrified; (4) And if at least one target voltage value is smaller than the preset voltage value, determining that the contact net is not electrified.

As an example and not by way of limitation, the preset voltage value may be 100V or 200V, and the specific preset voltage value may be set according to the actual application scenario.

The electroscope assembly comprises a fuse and a voltage sensor, wherein the fuse is used for protecting a circuit, for example, when the circuit breaks down, the fuse breaks the corresponding circuit to protect components in the circuit. As an example, but not limited to, the voltage sensor may be a contact voltage sensor, but also may be a non-contact voltage sensor, which is not limited herein, for example, the controller obtains an actual voltage value of the catenary through the voltage sensor in the electroscope assembly and performs voltage conversion to obtain an analog voltage value, where the actual voltage value is 100V, the analog voltage value is 5V, and the controller performs voltage conversion on the analog voltage value based on a preset conversion rule to obtain a target voltage value of the catenary as 100V, where the preset conversion rule is set according to the actual voltage value, and it is required to specify that the range of the analog voltage value is 0-5V, and since the actual voltage value is 100V, the analog voltage value is 5V, and thus the preset conversion rule is: x=k×y, X is used to indicate a target voltage value, k is 20, and Y is used to indicate an analog voltage value.

Through detecting whether the contact net is electrified, the change state of the voltage of the contact net can be monitored in real time, so that workers in the operation site of the contact net discharging can intuitively know whether the contact net is electrified or not and the actual voltage value of the contact net.

In a possible embodiment, the number of at least one electroscopic component is more than one, and after determining that the contact network is charged, the method further comprises: (1) The controller calculates the difference value between any two target voltage values in the at least one target voltage value to obtain at least one voltage difference value; (2) If the voltage difference value is larger than or equal to the preset threshold value, the controller generates fault prompt information, and the fault prompt information is used for indicating that the electricity testing component in the at least one electricity testing component breaks down.

For example, the number of at least one electroscope component is 3, i.e. the number of at least one target voltage value is 3, respectively: the first target voltage value is 10V, the second target voltage value is 15V, the third target voltage value is 30V, the controller calculates the difference between any two target voltage values to obtain 3 voltage difference values, wherein the 3 voltage difference values are respectively: the voltage difference between the second target voltage value and the first target voltage value is 5V, the voltage difference between the third target voltage value and the first target voltage value is 20V, the voltage difference between the third target voltage value and the second target voltage value is 15V, and if the voltage difference between the 3 voltage differences is greater than or equal to a preset threshold value, the controller generates fault prompt information which is used for indicating that the electricity inspection assembly of the 3 electricity inspection assemblies fails.

In a possible embodiment, the number of at least one electroscopic component is two, the number of at least one target voltage value is two, and after determining that the contact network is charged, the method further comprises: (1) The controller calculates the difference between the two target voltage values; (2) If the difference value is greater than or equal to a preset threshold value, the controller generates fault prompt information, and the fault prompt information is used for indicating that at least one of the two electricity testing components fails.

By way of example and not limitation, the preset threshold may be 10V or 20V, and the specific preset threshold may be set according to the actual application scenario.

Under the condition that the number of at least one electricity testing component is two, whether the electricity testing component fails or not is judged through the difference value between the two target voltage values, and the running state of the electricity testing component can be monitored in real time, so that the failure is found out in time, the failure is removed, and the safety and the efficiency of detecting the contact network are improved.

202. If the discharge system is detected to have the electricity verification mark, the isolating switch is in a separated position and the contact net is electrified, the discharger is controlled by a preset discharge instruction to keep the isolating switch in a separated position state and lock, and the contact net is connected with the track to discharge;

In one possible implementation manner, the discharger is controlled by a preset discharging instruction to keep the isolating switch in a split state and lock, and the contact net is connected with the track to discharge, which specifically comprises: (1) If the discharge system is detected to have the electricity verification mark, the isolating switch is in a split position and the contact net is electrified, the controller electrifies the discharger through a preset discharge instruction; (2) The controller acquires state information of the discharger, wherein the state information of the discharger is used for indicating whether the discharger works in a discharging state or not; (3) And if the state information of the discharger indicates that the discharger works in a discharging state, the controller controls the discharger to keep the isolating switch in a separated state and lock the isolating switch, and the contact net is connected with the track to discharge.

The controller comprises a fourth relay, and the discharger is electrified through a preset discharging instruction, and the controller can be understood that the controller controls the fourth relay to conduct a circuit between the controller and the discharger through the preset discharging instruction, so that the discharger is electrified.

The discharger comprises a first relay which is a normally open low-voltage relay. Under the condition that the normally open low-voltage relay normally operates, state information of the discharger is obtained, and when the discharger is electrified, the normally open low-voltage relay is switched from a normally open state to a normally closed state, a series circuit between the normally open low-voltage relay and the controller is conducted, so that the controller determines that the discharger works in a discharging state, and the state information of the discharger is determined as that the discharger works in the discharging state. Under the condition that the normally open low-voltage relay has faults, the state information of the discharger is obtained, and when the discharger is electrified, the normally open low-voltage relay cannot be switched from a normally open state to a normally closed state, and a series circuit between the normally open low-voltage relay and the controller cannot be conducted, so that the controller determines that the discharger does not work in a discharging state, and the state information of the discharger is determined as that the discharger does not work in the discharging state.

The discharger also comprises a second relay which is a normally open high-voltage relay. The normally open high-voltage relay is arranged between the contact net and the track, and is used for discharging the contact net and the track, and the normally open high-voltage relay can be switched from a normally open state to a normally closed state, so that the contact net and the track are conducted, and the contact net is discharged.

The discharger discharges the contact net, so that the problem of electric shock caused by the discharge of the conventional mode of manually hanging the ground wire can be avoided, and the safety of the discharge of the contact net is improved.

The disconnecting switch is kept in the separated state and locked, so that the disconnecting switch cannot be switched on, the contact net is always in the power-off state, and the safety of the contact net discharging is improved.

In a possible embodiment, the discharger further comprises a third relay, which is a normally closed low-voltage relay, controlling the discharger to hold and lock the disconnector in the separated state, comprising in particular: the controller controls a third relay in the discharger to disconnect a target circuit, which is a circuit in which the third relay is connected in series with the disconnecting switch, to hold the disconnecting switch in a split state and lock the disconnecting switch.

The target circuit is a circuit for controlling the isolating switch to switch on or off. The target circuit is opened, and it is understood that the normally-closed low-voltage relay is switched from the normally-closed state to the normally-open state, so that the circuit in which the third relay is connected in series with the disconnecting switch becomes an open circuit. The isolating switch at the split position can not normally switch on or off by disconnecting the target circuit, so that the isolating switch is kept in the split position state and locked.

In a possible embodiment, the discharger further comprises an external knife lock module for controlling the discharger to hold and lock the disconnecting switch in the separated state, and specifically comprises: the controller controls an external disconnecting link locking module in the discharger to lock the split state of the isolating switch so as to keep the isolating switch in the split state and lock the isolating switch.

As an example and not by way of limitation, the external knife switch locking module may be an electronic lock provided on a knife switch of the isolating switch, or may be any other device capable of locking the separated state of the isolating switch, which is not limited herein, and only needs to lock the separated state of the isolating switch.

The external disconnecting link locking module is controlled to lock the separated state of the disconnecting switch, and the disconnecting switch is kept in the separated state and locked, so that the disconnecting switch cannot be switched on, the contact network is always in the power-off state, and the safety of discharging of the contact network is improved.

In a possible embodiment, the discharger further comprises an insulating baffle plate, the insulating baffle plate is arranged between the movable contact and the stationary contact of the isolating switch, and the discharger is controlled to keep the isolating switch in a separated state and locked, and specifically comprises: the controller controls the insulating baffle in the discharger to move between the movable contact and the fixed contact of the isolating switch and contact with the movable contact so as to keep the isolating switch in a separated state and lock.

By way of example and not limitation, the insulating barrier need not be rectangular in shape or circular in size, and can be held in a split state and locked by only being positioned between and in contact with the movable contact and the stationary contact of the disconnecting switch.

The movable contact and the fixed contact of the isolating switch are isolated through the insulating baffle, and the isolating switch is kept in a split state and locked, so that the isolating switch cannot be switched on and electrified under wrong operation, the contact net is always in a power-off state, and the safety of discharging of the contact net is improved.

In a possible embodiment, the discharger further comprises an insulating cover provided at the movable contact of the disconnector, the discharger being controlled to hold the disconnector in a separated state and to lock, and comprising in particular: the controller controls an insulating cover in the discharger to cover and contact the movable contact of the disconnecting switch so as to keep the disconnecting switch in a separated state and lock the disconnecting switch.

As an example, but not by way of limitation, the shape of the insulating cover is not required, and the shape of the insulating cover may be hemispherical or cylindrical, so long as the movable contact of the isolating switch is covered and contacted with the movable contact, the isolating switch can be kept in a separated state and locked.

The movable contact and the fixed contact of the isolating switch are isolated through the insulating cover, and the isolating switch is kept in a split state and locked, so that the isolating switch cannot be switched on and electrified under wrong operation, the contact network is always in a power-off state, and the safety of discharging of the contact network is improved.

203. Detecting whether the contact net meets preset grounding conditions or not;

in a possible implementation manner, the controller detects whether the contact net meets a preset grounding condition, and specifically includes: (1) The controller obtains the actual voltage value of the contact net through at least one electricity testing component and performs voltage conversion to obtain at least one analog voltage value, wherein the analog voltage value corresponds to the electricity testing component one by one; (2) The controller performs voltage conversion on at least one analog voltage value to obtain at least one target voltage value; (3) If the at least one target voltage value is smaller than or equal to the first preset value within the preset time period, the controller determines that the contact net meets the preset grounding condition; (4) If at least one target voltage value is larger than a first preset value within the preset time period, the controller determines that the contact net does not meet the preset grounding condition.

By detecting whether the contact net meets the preset grounding condition, the problem that the contact net is subjected to grounding operation when the contact net does not meet the grounding condition, so that danger is caused to staff is avoided, and the operation safety of the contact net grounding is improved.

In a possible embodiment, after the controller performs voltage conversion on the at least one analog voltage value to obtain at least one target voltage value, the method further includes: (1) If the at least one target voltage value is larger than the first preset value within the preset time period, the controller judges whether the at least one target voltage value is larger than or equal to a second preset value, and the second preset value is larger than the first preset value; (2) If the target voltage value which is larger than or equal to the second preset value exists in the at least one target voltage value, the controller generates reminding information which is used for indicating to check the voltage of the contact network.

The preset duration may be, for example and not by way of limitation, 5 seconds, or 10 seconds, and the specific preset duration may be set according to the actual application scenario. The first preset value can be 5V or 10V, the situation that electric shock danger is not caused to staff is only required to be met, the specific first preset value can be set according to an actual application scene, the second preset value can be 10V or 20V, the situation that the second preset value is larger than the first preset value is only required to be met, and the specific second preset value can be set according to the actual application scene.

The fault of the voltage of the contact net can be detected by judging the target voltage value larger than the second preset value, so that the contact net is checked, and the contact net is prevented from causing electric shock danger to workers.

204. And if the contact net meets the grounding condition, controlling the grounding module to perform grounding operation on the contact net, controlling the discharger to be electrified, and keeping the isolating switch in a split state and locking.

In one possible embodiment, the discharge system further comprises a grounding module.

The control grounding module carries out grounding operation on the contact net, and can be understood as controlling the grounding knife switch in the grounding module to carry out switching-on so as to enable the contact net to be grounded with the track connection.

The control of the arrester to be powered down can be understood as that the first relay, the second relay and the third relay in the arrester recover the state when not powered up, and the series circuit formed by the arrester, the contact net and the track is disconnected.

In a possible embodiment, the arrester further comprises an external knife lock module, which holds and locks the disconnector in the separated state, comprising in particular: the controller controls an external disconnecting link locking module in the discharger to lock the split state of the isolating switch so as to keep the isolating switch in the split state and lock the isolating switch.

In a possible embodiment, the discharger further comprises an insulating shutter provided between the movable contact and the stationary contact of the disconnector, for holding the disconnector in the separated state and locking, comprising in particular: the controller controls the insulating baffle in the discharger to move between the movable contact and the fixed contact of the isolating switch and contact with the movable contact so as to keep the isolating switch in a separated state and lock.

It can be understood that in the process of grounding the contact net, the isolating switch needs to be kept in a split state and locked so as to prevent the isolating switch from being switched on due to incorrect operation, thereby leading to the energizing of the contact net and further causing danger to workers in the operation site of discharging the contact net.

The above describes a discharging method of a catenary in an embodiment of the present invention, and the following describes a discharging device of a catenary in an embodiment of the present invention, applied to a discharging system, where the discharging system includes at least one electroscope assembly and a discharger, referring to fig. 3, and one embodiment of the discharging device of a catenary in an embodiment of the present invention includes:

the first detection module 301 is configured to detect whether an electricity-checking identifier exists in the discharge system, whether an isolating switch of the contact network is located in a split position, and detect whether the contact network is electrified through at least one electricity-checking component;

and the control module 302 is configured to, if it is detected that the discharge system has the electroscopic identifier, the disconnecting switch is in a separated position and the contact network is electrified, control the discharger to maintain the disconnecting switch in a separated position and lock the disconnecting switch by presetting a discharge instruction, and connect the contact network with the track for discharging.

Referring to fig. 4, another embodiment of a discharging device of a catenary according to an embodiment of the present disclosure includes:

Optionally, the control module 302 is specifically configured to:

electrifying the discharger through a preset discharge instruction;

acquiring state information of the discharger, wherein the state information of the discharger is used for indicating whether the discharger works in a discharging state;

and if the state information of the discharger indicates that the discharger works in a discharging state, the discharger is controlled to keep the isolating switch in a separated state and lock, and the contact net is connected with the track for discharging.

Optionally, the first detection module 301 is specifically configured to:

acquiring an actual voltage value of the contact net through at least one electricity testing component, and performing voltage conversion to obtain at least one analog voltage value, wherein the analog voltage value corresponds to the electricity testing component one by one;

Performing voltage conversion on at least one analog voltage value to obtain at least one target voltage value;

if at least one target voltage value is greater than or equal to a preset voltage value, determining that the contact network is electrified;

and if at least one target voltage value is smaller than the preset voltage value, determining that the contact net is not electrified.

Optionally, the first detection module 301 is specifically further configured to:

calculating a difference between the two target voltage values;

if the difference value is greater than or equal to a preset threshold value, generating fault prompt information, wherein the fault prompt information is used for indicating that at least one of the two electricity testing components fails.

Optionally, the discharging device of the catenary further includes:

the generating module 303 is configured to generate operation prohibition prompting information if it is detected that the discharging system does not have the electroscopic identifier or the isolating switch is in the closed position, where the operation prohibition prompting information is used to instruct the contact network not to be powered off and not to allow the discharging operation.

Optionally, the discharging device of the catenary further includes:

the second detection module 304 is configured to detect whether the contact net meets a preset grounding condition;

and the operation module 305 is used for controlling the grounding module to perform grounding operation on the contact net if the contact net meets the grounding condition, controlling the discharger to be powered down, and keeping the isolating switch in a split state and locking.

The discharging device of the overhead line system in the embodiment of the present invention is described in detail from the point of view of modularized functional entity in fig. 3 and fig. 4, and the discharging system in the embodiment of the present invention is described in detail from the point of view of hardware processing.

Referring to fig. 5, an embodiment of a discharging system according to an embodiment of the present invention:

fig. 5 is a schematic structural diagram of a discharge system according to an embodiment of the present invention, and fig. 5 is only a schematic diagram, where specific component positions and directions of circuit wires may be set according to actual application scenarios. Fig. 5 illustrates an example in which the number of at least one electroscopic component is at least two.

The discharge system 500 includes: a controller 510, at least one electroscope assembly 520, and a discharger 530, wherein the controller 510 is connected to the at least one electroscope assembly 520 and the discharger 530;

one end of the electricity checking component 520 is electrically connected with the contact net, and the other end is electrically connected with the controller 510, and is used for obtaining an actual voltage value of the contact net and converting the actual voltage value into an analog voltage value;

the input end of the discharger 530 is electrically connected with the contact net, and the output end is electrically connected with the track, which is used for keeping the isolating switch 540 of the contact net in a separated state and locking and discharging the contact net when the discharger 530 works in a discharging state;

the controller 510 is configured to convert the analog voltage value into a target voltage value, detect whether the contact net is charged based on the target voltage value, detect whether the discharging system 500 has an electroscopic identifier and whether the isolating switch 540 is located, and when detecting that the contact net is charged, the discharging system 500 has the electroscopic identifier and the isolating switch 540 is located, control the discharger 530 to maintain the isolating switch 540 in a located state and lock, and discharge the contact net and the track connection.

Referring to fig. 6, another embodiment of the discharging system in the embodiment of the present invention is as follows:

Fig. 6 is a schematic diagram of a structure of a discharging system for discharging a contact network according to an embodiment of the present invention, and fig. 6 is only a schematic diagram, where specific component positions and directions of circuit wires may be set according to actual application scenarios. Fig. 6 illustrates an example in which the number of at least one electroscope assembly is at least two, and the discharger includes a first relay, a second relay, a third relay, an external knife lock module, an insulating shutter, and an insulating cover.

The discharging system 500 further includes a grounding module 550, where the grounding module 550 is disposed between the contact net and the track, and is used for performing a grounding operation on the contact net;

the controller 510 is further configured to detect whether the catenary meets a preset grounding condition based on the target voltage value; when the contact net meets the grounding condition, the grounding module 550 is controlled to perform grounding operation on the contact net, the discharger 530 is controlled to be powered down, and the isolating switch 540 is kept in a split state and locked.

It will be appreciated that the connection between the grounding module 550 and the controller 510 may be an electrical connection or may be a communication connection, which is not limited herein, and the connection between the grounding module and the controller is a communication connection in fig. 6.

In one possible embodiment, each of the electroscopic components 520 includes a fuse 5201 and a voltage sensor 5202, the fuse 5201 being disposed between the catenary and the voltage sensor 5202, and an input of the discharger 530 being connected to an output of the fuse 5201 and an input of the voltage sensor 5202.

Specifically, the fuse 5201 is used to open a corresponding circuit when the circuit fails. The voltage sensor 5202 is used for converting an actual voltage value of the catenary into an analog voltage value.

In one possible embodiment, the arrester 530 includes: the first relay 5301 and the second relay 5302; the first relay 5301 is electrically connected to the controller 510, and is configured to generate state information of the discharger 530 and transmit the state information to the controller 510; the second relay 5302 is disposed between the contact net and the track, and is configured to connect the contact net and the track for discharging.

The first relay 5301 generates state information of the arrester 530, and it can be understood that the first relay 5301 switches from a normally open state to a normally closed state. The second relay 5302 discharges the contact net to the rail connection, and it is understood that the second relay 5302 switches from the normally open state to the normally closed state.

In one possible embodiment, the arrester 530 further comprises: a third relay 5303; the third relay 5303 is connected in series with the isolation switch 540 for holding and locking the isolation switch 540 in the split state.

The third relay 5303 holds and locks the isolating switch 540 in the separated state, and it is understood that the third relay 5303 is switched from the normally closed state to the normally open state, so that a circuit in which the third relay 5303 is connected in series with the isolating switch 540 becomes an open circuit.

As shown in fig. 7, fig. 7 is a schematic diagram of an embodiment of the third relay and the disconnecting switch connected in series.

In one possible embodiment, the first relay 5301 is a normally open low voltage relay; the second relay 5302 is a normally open high voltage relay; the third relay 5303 is a normally closed low voltage relay.

In one possible implementation, the controller 510 includes: a fourth relay 5101 and a control unit 5102;

A fourth relay 5101 for controlling the arrester 530 to be powered up or powered down; the control unit 5102 is configured to control the second relay 5302 to disconnect the target circuit of the disconnector 550 of the catenary and control the third relay 5303 to discharge the catenary from the track connection when the state information of the discharger 530 indicates that the discharger 530 is operating in the discharge state.

In one possible embodiment, the first relay 5301 is electrically connected to the control unit 5102 in the controller 510, and the control unit 5102 acquires state information of the discharger 530.

Note that the connection relationship among the first relay 5301, the second relay 5302, and the third relay 5303 is parallel connection, and it is understood that the fourth relay 5101 is connected to the discharger 530. As shown in fig. 8, fig. 8 is a schematic diagram of an embodiment of the present invention in which three relays are connected in parallel.

In one possible embodiment, the arrester 530 further comprises: the external disconnecting link locking module 5304, the external disconnecting link locking module 5304 is connected to the controller 510, and is configured to lock the disconnection switch 540, and maintain the disconnection switch 540 in the disconnection state and lock.

The external switch locking module 5304 may be electrically connected to the controller 510, and may also be communicatively connected, which is not limited herein.

In one possible embodiment, the arrester 530 further comprises: the insulating damper 5305, the insulating damper 5305 is disposed between the movable contact 5401 and the stationary contact 5402 of the isolating switch 540, and the insulating damper 5305 is connected to the controller 510, and is disposed between the movable contact 5401 and the stationary contact 5402, and contacts the movable contact 5401, so as to keep the isolating switch 540 in a separated state and lock.

The insulating shield 5305 may be electrically connected to the controller 510, and may also be communicatively connected, which is not limited herein.

As shown in fig. 9, fig. 9 is a schematic diagram of an embodiment of the present invention in which the isolating switch is kept in a separated state and locked by the insulating shutter.

In one possible embodiment, the arrester 530 further comprises: the insulating cover 5306, the insulating cover 5306 locates at the movable contact 5401 of the isolating switch 540, and the insulating cover 5306 is connected to the controller 510, and is used for covering the movable contact 5401 of the isolating switch 540 and contacting the movable contact 5401 to keep the isolating switch 540 in a separated state and locked.

As shown in fig. 10, fig. 10 is a schematic view of an embodiment of covering a movable contact of an isolating switch by an insulating cover in an embodiment of the present invention.

In one possible embodiment, the discharge system further comprises an external knife switch detection module 560,

the external disconnecting link detection module 560 is configured to collect disconnecting link position information of the disconnecting switch 540, generate status information of the disconnecting switch 540 according to the disconnecting link position information, and send the status information of the disconnecting switch 540 to the controller 510, where the status information of the disconnecting switch 540 is used to indicate whether the disconnecting switch 540 is in a split position.

In one possible implementation, the grounding module 550 includes: a grounding switch 5501 and a motor 5502; the grounding disconnecting link 5501 is used for connecting the contact net with the track to be grounded; and the motor 5502 is used for controlling the grounding disconnecting link 5501 to switch on.

The present invention also provides a computer readable storage medium, which may be a non-volatile computer readable storage medium, or may be a volatile computer readable storage medium, in which instructions are stored, which when run on a computer, cause the computer to perform the steps of the discharging method of the catenary.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a random access memory (random access memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method of discharging a catenary, applied to a discharge system, wherein the discharge system comprises at least one electroscope assembly and a discharger, the method of discharging a catenary comprising:

detecting whether an electricity testing identifier exists in the discharging system, whether an isolating switch of the contact net is in a split position or not, and detecting whether the contact net is electrified or not through the at least one electricity testing component;

if the discharge system is detected to have an electricity verification mark, the isolating switch is in a separated position and the contact net is electrified, the discharger is controlled by a preset discharge instruction to keep the isolating switch in a separated position and lock, and the contact net is connected with a track to discharge.

2. The discharging method of the overhead line system according to claim 1, wherein the controlling the discharger to hold the disconnector in the separated state and lock by a preset discharging command and discharging the overhead line system to the track connection comprises:

electrifying the discharger through a preset discharge instruction;

And if the state information of the discharger indicates that the discharger works in a discharging state, controlling the discharger to keep the isolating switch in a separated state and lock, and discharging the contact net and the track connection.

3. The method of discharging a catenary according to claim 1, wherein said detecting whether the catenary is charged by said at least one electroscopic component comprises:

acquiring an actual voltage value of the contact net through the at least one electricity testing component, and performing voltage conversion to obtain at least one analog voltage value, wherein the analog voltage value corresponds to the electricity testing component one by one;

performing voltage conversion on the at least one analog voltage value to obtain at least one target voltage value;

if the at least one target voltage value is greater than or equal to a preset voltage value, determining that the contact net is electrified;

and if the at least one target voltage value is smaller than the preset voltage value, determining that the contact net is not electrified.

4. A method of discharging a catenary according to claim 3, wherein the number of the at least one electroscopic component is two and the number of the at least one target voltage value is two, and further comprising, after the determining that the catenary is charged:

Calculating a difference between the two target voltage values;

5. The method according to any one of claims 1 to 4, further comprising, after said detecting whether said discharge system has a electroscopic flag, whether said disconnector of said catenary is in a split position, and detecting whether said catenary is charged by said at least one electroscopic component:

if the fact that the electricity testing mark does not exist in the discharging system or the isolating switch is in the closed position is detected, forbidden operation prompt information is generated, and the forbidden operation prompt information is used for indicating that the contact network is not powered off and discharging operation is not allowed.

6. The discharging method of the overhead contact system according to claim 1, wherein the discharging system further comprises a grounding module, and further comprises, after the control of the discharger to hold the disconnector in the separated state and lock by a preset discharging instruction and the discharging of the overhead contact system with the track connection:

Detecting whether the contact net meets preset grounding conditions or not;

and if the contact net meets the grounding condition, controlling the grounding module to perform grounding operation on the contact net, controlling the discharger to be electrified, and keeping the isolating switch in a split state and locking.

7. A discharge device of a catenary, applied to a discharge system, the discharge system comprising at least one electroscope assembly and a discharger, the discharge device of the catenary comprising:

the first detection module is used for detecting whether an electricity-checking identifier exists in the discharge system, whether the isolating switch of the contact net is in a split position or not, and detecting whether the contact net is electrified or not through the at least one electricity-checking component;

and the control module is used for controlling the discharger to keep the disconnecting switch in a separated state and lock the disconnecting switch through a preset discharging instruction and discharging the contact net and the track connection if the discharging system is detected to have the electricity verification mark and the disconnecting switch is in the separated position and the contact net is electrified.

8. A discharge system, the discharge system comprising: the device comprises a controller, at least one electricity testing component and a discharger, wherein the controller is connected with the at least one electricity testing component and the discharger;

One end of the electricity checking component is electrically connected with the contact net, and the other end of the electricity checking component is electrically connected with the controller and is used for acquiring an actual voltage value of the contact net and converting the actual voltage value into an analog voltage value;

the input end of the discharger is electrically connected with the contact net, and the output end of the discharger is electrically connected with the track and is used for keeping and locking the isolating switch of the contact net in a separated state and discharging the contact net when the discharger works in a discharging state;

the controller is used for converting the analog voltage value into a target voltage value, detecting whether the contact net is electrified or not based on the target voltage value, detecting whether the electricity-checking mark exists in the discharging system or not and whether the isolating switch is in a separated position or not, and controlling the discharger to keep the isolating switch in a separated position state and lock the isolating switch and discharging the contact net and the track connection when detecting that the contact net is electrified, the electricity-checking mark exists in the discharging system and the isolating switch is in the separated position.

9. The discharge system of claim 8, wherein each of the electrical verification assemblies includes a fuse and a voltage sensor, the fuse being disposed between the catenary and the voltage sensor, an input of the discharger being connected to an output of the fuse and an input of the voltage sensor.

10. The discharge system of claim 8, wherein the discharger comprises a first relay and a second relay;

the first relay is electrically connected with the controller and is used for generating state information of the discharger and transmitting the state information to the controller;

the second relay is arranged between the contact net and the track and is used for discharging the contact net and the track.

11. The discharge system of claim 10 wherein the discharger further comprises a third relay;

the third relay is connected in series with the isolating switch and is used for keeping the isolating switch in a split state and locking.

12. The discharge system of claim 10, wherein the discharger further comprises an external knife lock module;

the external disconnecting link locking module is connected with the controller and used for locking the split state of the isolating switch and keeping the isolating switch in the split state and locking.

13. The discharge system of claim 10 wherein the arrester further comprises an insulating baffle;

the insulating baffle is arranged between the movable contact and the fixed contact of the isolating switch, is connected with the controller, and is used for being placed between the movable contact and the fixed contact, contacting with the movable contact, and keeping the isolating switch in a separated state and locking.

14. A computer-readable storage medium, on which instructions are stored, which instructions, when executed by a processor, implement a method of discharging a catenary according to any one of claims 1-6.