CN214224480U - Drop detection device for fuse - Google Patents
Drop detection device for fuse Download PDFInfo
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- CN214224480U CN214224480U CN202023269052.9U CN202023269052U CN214224480U CN 214224480 U CN214224480 U CN 214224480U CN 202023269052 U CN202023269052 U CN 202023269052U CN 214224480 U CN214224480 U CN 214224480U
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- distribution line
- travel switch
- drop detection
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Abstract
The utility model belongs to the technical field of fuses, in particular to a drop detection device for a fuse, which comprises a fuse body, wherein the two ends of the fuse body are respectively provided with a 10KV distribution line power supply side and a 10KV distribution line load side, and a fusion tube is arranged between the 10KV distribution line power supply side and the 10KV distribution line load side; the drop detection device comprises a position detection device and a current detection device, the position detection device comprises a connecting bus, a travel switch, a position sensor, a limiting device and a fixed connecting piece, the power side of the 10KV distribution line is connected with the fixed connecting piece through the connecting bus, the travel switch and the position sensor are arranged between the fusion tube and the connecting bus, and the limiting device is arranged beside the travel switch; the current detection device comprises a current sensor arranged on the connecting busbar. Drop detection device possess the fusion tube and fall the detection function, mechanical type falls and falls detection device reliable and stable.
Description
Technical Field
The utility model belongs to the technical field of the fuse, especially, relate to a fuse is with falling detection device.
Background
The drop-out fuse is a short-circuit protection switch most commonly used for 10kV distribution line branch lines and distribution transformers, has the characteristics of economy, convenience in operation, strong adaptability to outdoor environment and the like, is widely applied to primary sides of the 10kV distribution lines and the distribution transformers for protection and equipment switching and switching operation, and is important primary equipment for ensuring the safe operation of a distribution network. At present, a 10kV drop-out fuse operated in a hanging network only has basic switching operation and short-circuit fault cutting and isolating functions, an effective state monitoring means is lacked, operation and maintenance personnel need to check station areas one by one to confirm fault positions after line faults and power failure, the lack eliminating process is long and inefficient, and the power failure recovery time is long.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems existing in the prior art, the utility model aims to provide a fuse is with falling detection device.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a drop detection device for a fuse comprises a fuse body, wherein a 10KV distribution line power supply side and a 10KV distribution line load side are respectively arranged at two ends of the fuse body, and a fusion tube is arranged between the 10KV distribution line power supply side and the 10KV distribution line load side;
the drop detection device comprises a position detection device and a current detection device, the position detection device comprises a connecting bus, a travel switch, a position sensor, a limiting device and a fixed connecting piece, the power side of the 10KV distribution line is connected with the fixed connecting piece through the connecting bus, the travel switch and the position sensor are arranged between the fusion tube and the connecting bus, and the limiting device is arranged beside the travel switch; the current detection device comprises a current sensor arranged on the connecting busbar.
Preferably, an insulating protective cover covers the whole falling detection device.
Preferably, an arc extinguishing chamber installation reservation device is arranged on the insulation protective cover.
Preferably, the arc extinguishing cover installation reservation device is provided with an arc extinguishing cover.
The drop-and-fall detection device is arranged at the upper end of a fusion tube of the fuse body, is close to the 10kV side, is internally provided with a mechanical and electrical dual detection module, and can monitor the position information of the fusion tube in real time and convert the information into state quantity.
The fall detection device includes: the device comprises a connecting bus, a current sensor, a travel switch, a position sensor, a limiting device, a fixed connecting piece, an insulating protective cover and an arc extinguishing chamber installation reservation device, wherein the connecting bus is used for connecting a 10kV side with the fixed connecting piece to ensure the conductive connection of a line in a normal state; the current sensor is arranged on the connecting bus bar and used for measuring the current in real time; the travel switch and the position sensor are positioned between the fusion tube and the busbar, and whether the fusion tube falls off or not is judged through the deformation of different positions of the fusion tube; the limiting device is arranged beside the travel switch and used for protection; the insulating protective cover is arranged above the whole falling detection device and used for integral protection; the arc extinguishing cover installation reservation device is on insulating protective housing, if need, mountable arc extinguishing cover for the arc extinguishing and protect function when manual deciliter fuse.
The intelligent terminal comprises a controller and an intelligent terminal of a transformer area, wherein the current sensor, the travel switch and the position sensor are electrically connected with the controller, the current sensor can timely send a monitored current signal of the fuse to the controller, and if the current drops to exceed a threshold value, the controller can send a current mutation signal to the intelligent terminal of the transformer area; the travel switch and the position sensor can timely send the monitored position information of the fusion tube to the controller, and if the monitored position information of the fusion tube exceeds a threshold value, the controller can send a displacement signal to the intelligent terminal of the transformer area.
The detection principle of the falling detection device is as follows: the travel switch and the position sensor are installed in the hardware fitting on the upper portion of the fuse tube to be matched for use, position information with obvious difference can be measured under two states of 'on' and 'off' of the fuse tube respectively, the position information is converted into analog quantity, a 'displacement' event is considered to occur when the analog quantity exceeds a threshold value, meanwhile, the current sensor measures the current passing through the fuse in real time, similarly, if the current drops to exceed the threshold value, the 'current mutation' event is sent, the two events are synchronously reported, and the fuse 'off' event is determined to occur on site.
Advantageous effects
The utility model discloses a fuse is with falling detection device, fall detection device can be applied to traditional 10kV drop out fuse on, possess the fusion tube and fall the detection function, the mechanical type falls and falls detection device reliable and stable. Drop detection device be used for monitoring 10kV drop out fuse's quantity of state to report data to platform district intelligent terminal or electric wire netting main website backstage system through short distance wireless or NB, make field device obtain effectual monitoring management. After the short circuit fault occurs to the line, the equipment can report the fault alarm in time, thereby greatly facilitating the fault elimination work of operation and maintenance personnel and reducing the power failure time.
Drawings
FIG. 1 is a schematic structural view of a drop detection device for a fuse according to embodiment 1 of the present invention when a fuse tube is dropped;
FIG. 2 is a schematic diagram of data exchange of the drop detection device for the fuse according to embodiment 1 of the present invention;
in the figure, 1: connecting a busbar; 2: a current sensor; 3: a pressure sensor; 4: a travel switch; 5: a position sensor; 6: a fusion tube; 7: a limiting device; 8: the power supply side of the 10KV distribution line; 9: 10KV distribution line load side; 10: fixing the connecting piece; 11: an insulating protective cover; 12: the arc extinguishing chamber is provided with a reserved device.
Detailed Description
Hereinafter, the present invention will be described in detail. Before the description is made, it should be understood that the terms used in the present specification and the appended claims should not be construed as limited to general and dictionary meanings, but interpreted based on the meanings and concepts corresponding to technical aspects of the present invention on the basis of the principle that the inventor is allowed to define terms appropriately for the best explanation. Accordingly, the description proposed herein is just a preferable example for the purpose of illustrations only, not intended to limit the scope of the invention, so it should be understood that other equivalents and modifications could be made thereto without departing from the spirit and scope of the invention.
The following examples are given by way of illustration of embodiments of the invention and are not intended to limit the invention, and those skilled in the art will appreciate that modifications within the scope of the invention do not depart from the spirit and scope of the invention.
Example 1
As shown in fig. 1, a drop detecting device for a fuse includes: the device comprises a connecting bus, a current sensor, a travel switch, a position sensor, a limiting device, a fixed connecting piece, an insulating protective cover and an arc extinguishing chamber installation reservation device, wherein the connecting bus 1 is used for connecting a 10kV side with the fixed connecting piece 10 to ensure the conduction connection of a line in a normal state; the current sensor 2 is arranged on the connecting bus bar 1 and is used for measuring the current in real time; the travel switch 4 and the position sensor 5 are positioned between the fusion tube 6 and the connecting bus bar 1, and whether the connection bus bar falls is judged through the deformation of different positions of the fusion tube; the limiting device 7 is arranged beside the travel switch 4 and used for protection; the insulating protective cover 11 is arranged above the whole falling detection device and used for protecting the whole body; the arc extinguishing chamber installation reservation device 12 is arranged on an insulating protective cover, and the arc extinguishing chamber can be installed if needed and used for arc extinguishing and protection functions during manual switching on and off of the fuse.
The intelligent terminal comprises a controller and an intelligent terminal of a transformer area, wherein the current sensor, the travel switch and the position sensor are electrically connected with the controller, the current sensor can timely send a monitored current signal of the fuse to the controller, and if the current drops to exceed a threshold value, the controller can send a current mutation signal to the intelligent terminal of the transformer area; the travel switch and the position sensor can timely send the monitored position information of the fusion tube to the controller, and if the monitored position information of the fusion tube exceeds a threshold value, the controller can send a displacement signal to the intelligent terminal of the transformer area.
The detection principle of the falling detection device is as follows: the travel switch and the position sensor are installed in the hardware fitting on the upper portion of the fuse tube to be matched for use, position information with obvious difference can be measured under two states of 'on' and 'off' of the fuse tube respectively, the position information is converted into analog quantity, a 'displacement' event is considered to occur when the analog quantity exceeds a threshold value, meanwhile, the current sensor measures the current passing through the fuse in real time, similarly, if the current drops to exceed the threshold value, the 'current mutation' event is sent, the two events are synchronously reported, and the fuse 'off' event is determined to occur on site. The PLC controller used in the embodiment has the model number of S7-400, is suitable for the field of medium and high performance automatic control, and is strong in performance and simple to operate.
The drop-and-fall detection device is arranged at the upper end of a fusion tube of the fuse body, is close to the 10kV side, is internally provided with a mechanical and electrical dual detection module, and can monitor the position information of the fusion tube in real time and convert the information into state quantity. Drop detection device be used for monitoring 10kV drop out fuse's quantity of state to report data to platform district intelligent terminal or electric wire netting main website backstage system through short distance wireless or NB, make field device obtain effectual monitoring management. After the short circuit fault occurs to the line, the equipment can report the fault alarm in time, thereby greatly facilitating the fault elimination work of operation and maintenance personnel and reducing the power failure time.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or that equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention, which is claimed.
Claims (6)
1. A drop detection device for a fuse comprises a fuse body, wherein a 10KV distribution line power supply side and a 10KV distribution line load side are respectively arranged at two ends of the fuse body, and a fusion tube is arranged between the 10KV distribution line power supply side and the 10KV distribution line load side; the method is characterized in that: the drop detection device comprises a position detection device and a current detection device, the position detection device comprises a connecting bus, a travel switch, a position sensor, a limiting device and a fixed connecting piece, the power side of the 10KV distribution line is connected with the fixed connecting piece through the connecting bus, the travel switch and the position sensor are arranged between the fusion tube and the connecting bus, and the limiting device is arranged beside the travel switch; the current detection device comprises a current sensor arranged on the connecting busbar.
2. The drop detection device for a fuse according to claim 1, wherein: the whole upper cover that falls detection device is equipped with insulating protection casing.
3. The drop detection device for a fuse according to claim 2, wherein: and an arc extinguishing chamber installation reservation device is arranged on the insulation protective cover.
4. The drop detection device for a fuse according to claim 3, wherein: and the arc extinguishing cover installation reservation device is provided with an arc extinguishing cover.
5. The drop detection device for a fuse according to claim 1, wherein: also included is a control system including a controller.
6. The drop detection device for a fuse according to claim 5, wherein: and the current sensor, the travel switch and the position sensor are electrically connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023269052.9U CN214224480U (en) | 2020-12-30 | 2020-12-30 | Drop detection device for fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023269052.9U CN214224480U (en) | 2020-12-30 | 2020-12-30 | Drop detection device for fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214224480U true CN214224480U (en) | 2021-09-17 |
Family
ID=77707153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023269052.9U Active CN214224480U (en) | 2020-12-30 | 2020-12-30 | Drop detection device for fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214224480U (en) |
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2020
- 2020-12-30 CN CN202023269052.9U patent/CN214224480U/en active Active
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