CN210775714U - Traction substation return cable state monitoring device - Google Patents

Traction substation return cable state monitoring device Download PDF

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Publication number
CN210775714U
CN210775714U CN201920889086.6U CN201920889086U CN210775714U CN 210775714 U CN210775714 U CN 210775714U CN 201920889086 U CN201920889086 U CN 201920889086U CN 210775714 U CN210775714 U CN 210775714U
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China
Prior art keywords
monitoring
return cable
current
box body
traction substation
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CN201920889086.6U
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Chinese (zh)
Inventor
吕文利
温建民
张华志
高黎明
汪自成
张雷
王林
王天兵
李进军
吴华丹
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China Railway Siyuan Survey and Design Group Co Ltd
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China Railway Siyuan Survey and Design Group Co Ltd
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Abstract

The utility model relates to the field of electrified railway engineering, and discloses a device for monitoring the state of a return cable of a traction substation, which comprises a box body, wherein a monitoring system is arranged in the box body; the monitoring system comprises a plurality of current sensors and a plurality of current collectors; the internal surface of the first lateral wall of box is equipped with the electron subrack, is equipped with a plurality of interface on the electron subrack, and every backward flow cable corresponds with a current sensor and links to each other, and every current sensor corresponds with a current collector and links to each other, and every current collector is connected with the plug of electron subrack at the interface. The utility model provides a pair of draw substation return cable state monitoring devices sets up the electron subrack and is used for connecting current collector, can set up current collector and current sensor's quantity as required in a flexible way, can realize the nimble increase and decrease of monitoring devices intermediate function module through simple plug, and the return cable of adaptable different quantity improves this monitoring devices's suitability and flexibility greatly.

Description

Traction substation return cable state monitoring device
Technical Field
The utility model relates to an electronic railway engineering field especially relates to a draw return cable state monitoring devices of electric substation.
Background
The reliability of the traction power supply system is one of factors for guaranteeing the normal operation of a railway line, and the backflow cable is of great importance as an electric path for backflow of a traction loop to a substation. Due to mechanical damage, insulation moisture, insulation aging, insulation breakdown and other reasons, insulation damage sometimes occurs to the return cable. A ground fault occurs at the damaged portion, and a discharge arc is formed to blow the cable, which develops into a more serious power supply accident. The capacity of the reflux current is increased, each group of traction reflux lines generally consists of a plurality of cables, when a single cable breaks down, the traction reflux current is not easy to be perceived, and the reflux current is easy to exceed the current carrying capacity of other normal cables, so that more serious faults are formed.
The existing outdoor cable state monitoring device needs to be operated by multiple persons when being installed, is very troublesome, and the number of the internal functional modules of the monitoring device is often certain, and can only adapt to cables with specific number, thereby greatly reducing the practicability of the monitoring device.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model aims at providing a draw substation return cable state monitoring devices for solve or the partial quantity of solving the inside function module of current cable state monitoring class device often certain, can only adapt to the cable of specific quantity, greatly reduced the problem of this monitoring devices practicality.
(II) technical scheme
In order to solve the technical problem, the utility model provides a traction substation return cable state monitoring device, which comprises a box body, wherein a monitoring system is arranged in the box body; the monitoring system comprises a plurality of current sensors and a plurality of current collectors; the internal surface of the first lateral wall of box is equipped with the electron subrack, be equipped with a plurality of interface on the electron subrack, every return cable corresponds with a current sensor and links to each other, and every current sensor corresponds with a current collector and links to each other, every current collector is in the interface with the plug-in connection of electron subrack.
On the basis of the above scheme, the monitoring system further comprises: the device comprises a power supply module, a signal transmitter, a synchronous signal line and a controller; the electronic plug box, the signal transmitter, the synchronous signal line and the controller are respectively electrically connected with the power supply module; the signal transmitter is connected with the synchronous signal line in a bidirectional way and is used for transmitting signals synchronously acquired by all the current collectors to an upper computer; the synchronous signal line is bidirectionally connected with the electronic plug box and is used for connecting with the current collectors through the electronic plug box and controlling all the current collectors to synchronously collect signals; the controller is connected with the electronic plug box and used for controlling the operation of the power supply module according to the operation state of the current collector connected with the electronic plug box.
On the basis of the scheme, the method further comprises the following steps: a security panel; the safety panel with the internal surface fixed connection of first lateral wall, power module, signal transmitter, synchronous signal line and controller encapsulation are in between first lateral wall and the safety panel, be equipped with the socket on the safety panel, the electron subrack is in socket department with safety panel plug connection.
On the basis of the scheme, the method further comprises the following steps: a bracket and a bottom plate; one end of the support is detachably and fixedly connected with the bottom plate, and the other end of the support is detachably and fixedly connected with the outer surface of the first side wall.
On the basis of the scheme, a bracket is fixedly connected to the support at a position corresponding to the bottom of the box body, and the bracket is connected with the bottom of the box body.
On the basis of the scheme, a plurality of connecting pieces are arranged on the outer surface of the first side wall at intervals along the length direction of the support, fixing pieces are arranged on the support and correspond to the connecting pieces in position, and the fixing pieces are connected with the connecting pieces in a one-to-one correspondence mode through bolts.
On the basis of the scheme, the safety panel is provided with an air switch.
On the basis of the scheme, a door body is arranged on one side, opposite to the first side wall, of the box body, and a door lock is arranged on the door body.
On the basis of the scheme, a rain shelter is arranged at the top of the box body and covers the top of the box body; and the side wall of the box body is provided with a wire inlet hole and a heat dissipation hole.
On the basis of the scheme, the outer surface of the box body is provided with a waterproof structure layer.
(III) advantageous effects
The utility model provides a traction substation return cable state monitoring device, through all connecting a current sensor on every cable, can be in real time to each traction substation return cable separately monitor, can in time discover when return cable takes place ground fault and broken string trouble to in time take measures, avoid appearing great accident; in addition, the electronic plug box is arranged to be connected with the current collectors, the number of the current collectors and the number of the current sensors can be flexibly set according to needs, flexible increase and decrease of the functional modules in the monitoring device can be achieved through simple plugging, the monitoring device is suitable for backflow cables with different numbers, and the applicability and flexibility of the monitoring device are greatly improved.
Drawings
Fig. 1 is a first overall schematic view of a traction substation return cable state monitoring device according to an embodiment of the present invention;
fig. 2 is a schematic connection diagram of a monitoring system according to an embodiment of the present invention;
fig. 3 is a second overall schematic view of a traction substation return cable state monitoring device according to an embodiment of the present invention;
fig. 4 is a third overall schematic diagram of a traction substation return cable state monitoring device according to an embodiment of the present invention.
Description of reference numerals:
1, a box body; 2, a bracket; 3-a bottom plate;
4, an interface; 5-a security panel; 6, electronic plug-in box;
7-air switch; 8, connecting pieces; 9-a fixing piece;
10-door body; 11-door lock; 12-a rain shelter;
13-a carrier; 14-a threaded hole; 15-wire inlet hole;
16-heat dissipation holes.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The embodiment of the utility model provides a traction substation return cable state monitoring device, refer to fig. 1, including box 1, the monitoring system is placed in the box 1; referring to fig. 2, the monitoring system includes a number of current sensors and a number of current collectors; the internal surface of the first lateral wall of box 1 is equipped with electron subrack 6, is equipped with a plurality of interface 4 on the electron subrack 6. Each backflow cable is correspondingly connected with one current sensor, each current sensor is correspondingly connected with one current collector, and each current collector is connected with the electronic plug box 6 in a plugging mode at the interface 4.
The utility model provides a draw substation return cable state monitoring devices, it links to each other with current sensor to set up the cable, and current sensor can carry out real-time supervision to the electric current in the cable. The current collector is connected with the current sensor, and can collect monitoring signals of the current sensor to obtain current signals in the monitored cable. According to the current signal, the operation condition of the cable, namely whether a fault occurs or not, can be judged and analyzed.
Set up electron subrack 6, the current collector is connected with 6 plug-ins of electron subrack, easy to assemble and dismantlement. When the number of the backflow cables is large, the number of the current sensors and the number of the current collectors can be increased, and the current collectors are inserted into the interfaces 4 on the electronic plug boxes 6. When the number of the backflow cables is small, the number of the current sensors and the number of the current collectors can be reduced, and the redundant current collectors can be pulled out of the interface 4 on the electronic plug box 6. The current sensors are connected with the current collectors in a one-to-one correspondence mode, and the number of the current sensors is the same as that of the return cables. The current sensor and the current collector can be connected through a signal wire. The current collector and the electronic plug box 6 can be connected through a signal wire.
According to the device for monitoring the state of the return cables of the traction substation, each cable is connected with one current sensor, each traction return cable of the traction substation can be monitored independently in real time, and can be found in time when the return cables have ground faults and disconnection faults, so that measures can be taken in time, and large accidents are avoided; in addition, the electronic plug box 6 is arranged to be connected with the current collectors, the number of the current collectors and the number of the current sensors can be flexibly set according to needs, flexible increase and decrease of the functional modules in the monitoring device can be achieved through simple plugging, the monitoring device is suitable for backflow cables with different numbers, and the applicability and flexibility of the monitoring device are greatly improved.
On the basis of the above embodiment, further, referring to fig. 2, the monitoring system further includes: power module, signal transmitter, synchronizing signal line and controller. The electronic plug box 6, the signal transmitter, the synchronous signal line and the controller are respectively electrically connected with the power supply module. The power supply module is a device capable of providing electric energy for other components, and can be a power supply circuit connected with a power supply and the like. The power supply module should be capable of both providing power and controlling the supply of power. The power source may be a battery or an external power source.
The signal transmitter is connected with the synchronous signal line in a bidirectional mode and used for transmitting signals synchronously acquired by all the current collectors to the upper computer. The synchronous signal line is connected with the electronic plug box 6 in a bidirectional mode and is used for being connected with the current collectors through the electronic plug box 6 and controlling all the current collectors to synchronously collect signals. The controller is connected with the electronic plug box 6 and is used for controlling the operation of the power supply module according to the operation state of the current collector connected with the electronic plug box 6.
Further, the controller may be a CAN bus, or may be other, and is not limited specifically.
On the basis of the above embodiment, further, a traction substation return cable state monitoring device further includes: a security panel 5; the safety panel 5 is fixedly connected with the inner surface of the first side wall, and the power supply module, the signal transmitter, the synchronous signal line and the controller are packaged between the first side wall and the safety panel 5. The safety panel 5 is provided with a socket, and the electronic plug box 6 is connected with the safety panel 5 in a plug-in manner at the socket.
The electronic plug box 6 is connected with the power supply module, the synchronous signal line, the controller and other parts inside the safety panel 5 through the socket on the safety panel 5. The security panel 5 may be a plate-like structure formed of an insulating material. The safety panel 5 is provided with a socket electrically connected with the related inner part. The electrical connection can realize the connection of signal transmission, and can be connected through a signal wire. Set up safety panel 5, can seal electrified part in the inboard, not only can improve the security in the monitoring process, still can guarantee the security that later stage overhauld, comparatively pleasing to the eye clean and tidy moreover.
On the basis of the above embodiment, further, a traction substation return cable state monitoring device further includes: a bracket 2 and a base plate 3; one end of the support 2 is detachably and fixedly connected with the bottom plate 3, and the other end of the support 2 is detachably and fixedly connected with the outer surface of the first side wall. The bracket 2 is used to support and fix the case 1 such that the case 1 is located at a position convenient for operation.
One end of the bracket 2 and the bottom plate 3 can be connected through bolts or other connection methods. The bottom plate 3 is used for fixing the bracket 2 and maintaining the stability of the whole device. The monitoring device may be fixed in position by the base plate 3. Threaded holes 14 may be provided in the base plate 3, the base plate 3 being bolted in place at the threaded holes 14.
In addition to the above embodiments, referring to fig. 3, a bracket 13 is fixedly connected to the support 2 at a position corresponding to the bottom of the box 1, and the bracket 13 is connected to the bottom of the box 1. The bracket 13 is fixedly connected with the bracket 2. The carrier 13 may be a plate-like structure perpendicular to the support 2. The bracket 13 supports the case 1. Set up bracket 13 for when this monitoring devices of on-the-spot installation, can place box 1 on bracket 13 and then install, alone can install the operation, improved this monitoring devices's suitability greatly.
On the basis of the above embodiment, further, referring to fig. 4, the outer surface of the first side wall is provided with a plurality of connecting pieces 8 at intervals along the length direction of the bracket 2. The bracket 2 is provided with a fixing part 9 corresponding to the connecting part 8. The fixing pieces 9 are connected with the connecting pieces 8 through bolts in a one-to-one correspondence mode. The connecting member 8 may be fixedly connected to the outer surface of the first sidewall of the box 1, may be welded, may also be in other connecting structures, and is not limited.
The fixing element 9 can also be fixedly connected to the support 2, for example by welding or otherwise. Can be located between connecting piece 8 and the mounting 9 with support 2, then in the both sides of support 2, utilize the bolt to couple together connecting piece 8 and mounting 9 respectively, realize being connected of support 2 and box 1, it is easy and simple to handle, simple structure and connection stability are stronger. The connecting structure between the bracket 2 and the box body 1 can be other, and is not limited.
In addition to the above embodiments, an air switch 7 is further provided on the security panel 5. The air switch 7 performs a safety protection function on the power supply of the electronic plug box 6 by the safety panel 5. When the current on the safety panel 5 is abnormal, the power supply loop can be automatically cut off to play a protection role and ensure the safety of operators.
In addition to the above embodiments, the cabinet 1 is further provided with a door 10 on a side opposite to the first side wall, and the door 10 is provided with a door lock 11.
On the basis of the above embodiment, further, a canopy 12 is provided on the top of the box body 1, and the canopy 12 covers the top of the box body 1. The side wall of the box body 1 is provided with a wire inlet 15 and a heat radiation hole 16.
On the basis of the above embodiment, further, the outer surface of the box body 1 is provided with a waterproof structure layer.
On the basis of the embodiment, further, the traction substation return cable state monitoring device is used for monitoring and early warning a traction substation return system. The monitoring device comprises a box body 1, a mounting bracket 2, a bottom plate 3 and an on-site monitoring system; the bottom of the mounting bracket 2 is fixedly connected with the top of the bottom plate 3; the internal surface of the first lateral wall of box 1 is fixedly connected with safety panel 5, and the front fixedly connected with electron subrack 6 of safety panel 5, and the front of safety panel 5 just is located the bottom fixedly connected with air switch 7 of electron subrack 6.
The top and the bottom of the back of the first side wall of the box body 1 are fixedly connected with connecting pieces 8. The top and the bottom of the upper end of the surface of the mounting bracket 2 are fixedly connected with fixing pieces 9. The inside of the fixing member 9 is screwed with the surface of the connecting member 8 by a screw.
The front of the box body 1 is hinged with a box door through a hinge, and the front of the box door is fixedly connected with a door lock 11. The top of the box body 1 is fixedly connected with a rain shelter 12. A mounting bracket 13 is fixedly connected to the surface of the bracket 2 and positioned at the bottom of the box body 1. The bottom plate 3 is provided with a threaded hole 14. One side of the bottom of the box body 1 is provided with a wire inlet 15 and a heat dissipation hole 16.
The on-site monitoring system comprises a power supply module, a current acquisition system, a current sensing system, a signal transmitter, a synchronous signal line and a CAN bus. The output end of the power supply module is connected with the input end of the current acquisition system, and the current acquisition system is in bidirectional connection with the synchronous signal line. The output end of the power supply module is connected with the input end of the signal transmitter. The signal transmitter and the synchronous signal line are connected in a bidirectional mode. The power supply module is in bidirectional connection with the synchronous signal line. The power supply module is in bidirectional connection with the CAN bus. The current acquisition system is connected with the current sensing system through a signal wire. N current collectors are arranged in the current collecting system. The current sensing system is internally provided with N current sensors which are connected with a current collector through a signal wire.
The lateral wall of box 1 adopts IP66 waterproof construction among this monitoring devices, is applicable to the outdoor use, and electronic equipment is the electronic components in the detecting system simultaneously and adopts the modularization plug structure of electron subrack 6, conveniently freely increases and decreases function module and electric current collector and current sensor as required at the use scene of difference, possesses the installation bracket 13 that makes things convenient for the field installation simultaneously, during the field installation, alone can install the operation, has improved this monitoring devices's practicality greatly.
The monitoring system in the monitoring device can monitor each traction backflow cable of the traction substation in real time so as to take measures in time when the backflow cable has ground fault and disconnection fault. The current collection adopts the modularized design, can freely increase and decrease according to the difference of specific application fields, is more convenient for maintenance and function extension, supports a plurality of on-site monitoring systems to be connected with a main station, realizes the distributed monitoring of many electric substations.
This monitoring devices multichannel electric current can synchronous acquisition, and the multichannel electric current data wave form after the collection possesses the comparability in the time, can be in real time to every backflow cable that pulls of traction substation monitors respectively to when backflow cable takes place ground fault and broken string trouble and appears, in time take measures. After the wiring of the field sensor is finished, the safety panel 5 can be installed, and all the contactable electrified components are completely sealed behind the cover plate, so that the appearance is attractive, and the safety of later-stage maintenance is ensured.
When the device is used, after the device box body 1 is moved to the outdoor, the bottom plate 3 is fixed with other positions by using screws, the box door is opened, and the electronic components in the device box body 1 adopt a modular plug-in structure of the electronic plug-in box 6, so that functional modules can be freely increased and decreased according to needs on different use sites.
The power supply module is responsible for power management of the signal transmitter and the current acquisition system and obtains the running state of the current acquisition system through the CAN bus. When a certain current collector operates abnormally, the power supply module is used for powering off and restarting the current collector, and meanwhile, when the certain current collector is in an idle state, the power supply module can also stop supplying power to the current collector so as to reduce power consumption.
And when the specified timing time is reached, the signal transmitter transmits an instruction to the current acquisition system through the CAN bus to enable the current acquisition system to enter an acquisition ready state, and controls each current acquisition device to acquire synchronous data through the synchronous signal line. After the acquisition is finished, the signal transmitter integrates and packs the data and adds a time mark, and then the data is transmitted to the master station through the optical cable. If communication fails, the data is stored, and the data is sent again after communication is recovered, so that the whole work is completed.
This draw substation return cable state monitoring devices, it is inconvenient and can not come the problem that freely increases and decreases the functional module in the electronic equipment according to the on-the-spot needs to have solved current monitoring facilities installation. The traction substation can monitor each traction backflow cable in the traction substation in real time, and can take measures in time when the backflow cable has ground fault and disconnection fault and remind operators. And a plurality of field monitoring systems are connected with one main station, so that distributed monitoring of a plurality of substations is realized.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A traction substation return cable state monitoring device comprises a box body, wherein a monitoring system is arranged in the box body; the monitoring system is characterized by comprising a plurality of current sensors and a plurality of current collectors; the internal surface of the first lateral wall of box is equipped with the electron subrack, be equipped with a plurality of interface on the electron subrack, every return cable corresponds with a current sensor and links to each other, and every current sensor corresponds with a current collector and links to each other, every current collector is in the interface with the plug-in connection of electron subrack.
2. The traction substation return cable condition monitoring device of claim 1, wherein the monitoring system further comprises: the device comprises a power supply module, a signal transmitter, a synchronous signal line and a controller; the electronic plug box, the signal transmitter, the synchronous signal line and the controller are respectively electrically connected with the power supply module;
the signal transmitter is connected with the synchronous signal line in a bidirectional way and is used for transmitting signals synchronously acquired by all the current collectors to an upper computer; the synchronous signal line is bidirectionally connected with the electronic plug box and is used for connecting with the current collectors through the electronic plug box and controlling all the current collectors to synchronously collect signals; the controller is connected with the electronic plug box and used for controlling the operation of the power supply module according to the operation state of the current collector connected with the electronic plug box.
3. The device for monitoring the condition of the return cable of the traction substation according to claim 2, further comprising: a security panel; the safety panel with the internal surface fixed connection of first lateral wall, power module, signal transmitter, synchronous signal line and controller encapsulation are in between first lateral wall and the safety panel, be equipped with the socket on the safety panel, the electron subrack is in socket department with safety panel plug connection.
4. The apparatus for monitoring the condition of the return cable of a traction substation according to any one of claims 1 to 3, further comprising: a bracket and a bottom plate; one end of the support is detachably and fixedly connected with the bottom plate, and the other end of the support is detachably and fixedly connected with the outer surface of the first side wall.
5. The device for monitoring the condition of the return cable of the traction substation according to claim 4, wherein a bracket is fixedly connected to the support at a position corresponding to the bottom of the box body, and the bracket is connected to the bottom of the box body.
6. The device for monitoring the state of the return cable of the traction substation according to claim 4, wherein a plurality of connecting pieces are arranged on the outer surface of the first side wall at intervals along the length direction of the bracket, fixing pieces are arranged on the position, corresponding to the connecting pieces, of the bracket, and the fixing pieces are connected with the connecting pieces through bolts in a one-to-one correspondence mode.
7. The device for monitoring the condition of the return cable of the traction substation according to claim 3, wherein an air switch is arranged on the safety panel.
8. The device for monitoring the state of the return cable of the traction substation according to claim 4, wherein a door body is arranged on one side of the box body opposite to the first side wall, and a door lock is arranged on the door body.
9. The device for monitoring the condition of the return cable of the traction substation as recited in claim 4, wherein a canopy is provided on the top of the box body, the canopy covering the top of the box body; and the side wall of the box body is provided with a wire inlet hole and a heat dissipation hole.
10. The device for monitoring the condition of the return cable of the traction substation as recited in claim 4, wherein a waterproof structure layer is disposed on an outer surface of the box body.
CN201920889086.6U 2019-06-13 2019-06-13 Traction substation return cable state monitoring device Active CN210775714U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920889086.6U CN210775714U (en) 2019-06-13 2019-06-13 Traction substation return cable state monitoring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920889086.6U CN210775714U (en) 2019-06-13 2019-06-13 Traction substation return cable state monitoring device

Publications (1)

Publication Number Publication Date
CN210775714U true CN210775714U (en) 2020-06-16

Family

ID=71060969

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920889086.6U Active CN210775714U (en) 2019-06-13 2019-06-13 Traction substation return cable state monitoring device

Country Status (1)

Country Link
CN (1) CN210775714U (en)

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Date Code Title Description
GR01 Patent grant
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract
EE01 Entry into force of recordation of patent licensing contract

Assignee: GUANGDONG ZHIHE TRAFFIC TECHNOLOGY CO.,LTD.

Assignor: CHINA RAILWAY SIYUAN SURVEY AND DESIGN GROUP Co.,Ltd.

Contract record no.: X2023420000222

Denomination of utility model: Status monitoring device for return cable of traction Electrical substation

Granted publication date: 20200616

License type: Common License

Record date: 20230706