WO2012059609A1 - Protection against high-voltage line breaks - Google Patents
Protection against high-voltage line breaks Download PDFInfo
- Publication number
- WO2012059609A1 WO2012059609A1 PCT/ES2011/000330 ES2011000330W WO2012059609A1 WO 2012059609 A1 WO2012059609 A1 WO 2012059609A1 ES 2011000330 W ES2011000330 W ES 2011000330W WO 2012059609 A1 WO2012059609 A1 WO 2012059609A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- high voltage
- box
- lines
- protector against
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/18—Devices affording mechanical protection in the event of breakage of a line or cable, e.g. net for catching broken lines
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/02—Devices for adjusting or maintaining mechanical tension, e.g. take-up device
Definitions
- the present invention relates to a structure consisting of certain elements such as blades, insulators, connection terminals, among others, intended for the protection of people, animals and objects susceptible to falling victim to high voltage cable ground.
- the proposed invention aims to provide an economic, ecological, practical, simple and easy-to-use solution, the effect of which would be the protection of both living beings and material elements against the eventual breakage of high voltage lines, preventing damage, in some cases, irreparable
- the patent object of this invention has its field of application in the electrical sector, and more specifically in that of protection systems.
- maneuvering devices which must protect people and / or things against dangerous effects of electric current, such as fault current protection switches, network circuit line protection circuit breakers, automatic main line protection circuit breakers, motor protection switches, force circuit breakers and the like, contain trip mechanisms, which detect fault currents and overloads or short circuits, and then disconnect the switching mechanisms when they are exceeded The limit values. Then the contacts of the main current of the maneuvering devices are opened, so that no harmful current can normally pass through them anymore. But, it can happen that in a serious case, the maneuvering devices of this type fail, for example because their firing mechanisms are stuck, the switching mechanisms are blocked, the contacts are soldered or other defects occur.
- a protection device for low voltage distribution networks refers to a device for the protection of low-voltage electrical networks, against overcurrents and against overloads, which involves an insulating socket provided with at least one first and second jaws respectively intended to receive a first and a second Contact terminals of a module designed to cut off the electric current flowing through the line in case of overcurrents and overloads, a clamping handle designed to remove said module with respect to the insulating socket.
- said module comprises a governed switch mounted on said socket, with a standard fuse cartridge.
- An effective solution is provided that eliminates the risk of breakage of high voltage cables, especially on roads and urban areas.
- the present invention is constituted from the following elements:
- a rectangular fiberglass box covered by a plastic layer, and presenting at one of its ends a plate with a central hole in which a clip is connected through which a high voltage cable runs.
- Said box houses a full U-shaped aluminum body, covered internally by an insulating rubber layer, and which has a greater depth at the end where the plate is located, and a lower depth at the end opposite.
- a steel blade In the area of greater depth of said aluminum body is housed in a guide rail, vertically and longitudinally, a steel blade, joined in solidarity with a flexible steel wire which, leaving the box at the opposite end of the plate , and running inside a fiberglass tube, interconnects the boxes connected with the Other high voltage cables.
- the tube has lateral notches in the exit area of the steel wire of the box.
- the operating mechanism is simple. Due to the force that the cable produces when splitting, the protection system would fall and the tube would break in the area of the notches, which would pull the flexible steel wire by dragging the blade towards the shallowest area of the aluminum body, cutting the insulating rubber layer and making contact with the aluminum. This movement would drag the blades of the other protectors that are connected to the other high voltage cables, cutting their respective insulators, entering voltage and causing the short circuit. Thus, before the cable can reach the ground, the line will already be without service, avoiding any type of danger.
- Said housing houses a full-length aluminum body (6) in its entire interior length, covered internally by an insulating rubber layer (7), and which has a deeper area (8) at the end where find the plate, and a shallower one (9) at the opposite end.
- a guide rail (10) vertically and longitudinally, a steel blade (11), joined together with a flexible steel wire (12) which, leaving the box at the opposite end of the plate, and running inside a fiberglass tube (13), interconnects the boxes connected with the other high voltage cables.
- the tube has lateral notches (14) in the exit area of the steel wire from the box.
Landscapes
- Installation Of Indoor Wiring (AREA)
- Details Of Indoor Wiring (AREA)
Abstract
Description
PROTECTOR CONTRA ROTURA DE LÍNEAS DE ALTA TENSIÓN La presente invención se refiere a una estructura constituida por determinados elementos como cuchillas, aislantes, terminales de conexión, entre otros, destinada a la protección de personas, animales y objetos susceptibles de ser víctimas de la caída a tierra de cables de alta tensión. PROTECTOR AGAINST BREAK OF HIGH VOLTAGE LINES The present invention relates to a structure consisting of certain elements such as blades, insulators, connection terminals, among others, intended for the protection of people, animals and objects susceptible to falling victim to high voltage cable ground.
Son ampliamente conocidas las gravísimas consecuencias producidas por la rotura de líneas de alta tensión, especialmente cuando se produce en zonas de carreteras y otros espacios urbanos, Al producirse un accidente de este tipo, se pone en peligro la salud y aún la vida de las personas y anímales que se encuentran en la zona, además de acarrear otros inconvenientes, como riesgo de posibles incendios, cierres de carreteras, necesidad de evacuación de personas, etc. Como podemos ver, situaciones como éstas, provocan daños materiales, personales y al medio ambiente, y que en ciertos casos, resultan bastante lamentables. The very serious consequences produced by the breakage of high voltage lines, especially when it occurs in areas of roads and other urban spaces, are widely known. When an accident of this type occurs, the health and even life of people is endangered. and encourage them to be found in the area, in addition to carrying other inconveniences, such as the risk of possible fires, road closures, the need to evacuate people, etc. As we can see, situations like these cause material, personal and environmental damage, and in certain cases, are quite unfortunate.
La invención propuesta pretende aportar una solución económica, ecológica, práctica, sencilla y de fácil utilización, cuyo efecto sería la protección tanto de los seres vivos como elementos materiales ante una eventual rotura de las líneas de alta tensión, impidiendo daños, en algunos casos, irreparables The proposed invention aims to provide an economic, ecological, practical, simple and easy-to-use solution, the effect of which would be the protection of both living beings and material elements against the eventual breakage of high voltage lines, preventing damage, in some cases, irreparable
La patente objeto de esta invención tiene su campo de aplicación en el sector eléctrico, y más específicamente en el de los sistemas de protección. The patent object of this invention has its field of application in the electrical sector, and more specifically in that of protection systems.
En el estado de la técnica encontramos algunos documentos relacionados con la invención en cuestión, aunque ninguno de ellos aporta las mismas características ventajosas ni resuelve eficazmente los inconvenientes existentes. In the state of the art we find some documents related to the invention in question, although none of them provide the same advantageous characteristics nor effectively solve the existing drawbacks.
Así, en el documento ES 2 131 725 T3 encontramos un procedimiento para la fabricación de un manguito de recubrimiento para una conexión de cables de media tensión, que comprende las siguientes etapas: - extrusionar una estructura tubular de múltiples capas juntas, que comprende una capa semiconductora interna, una capa de control de campo intermedia que tiene una constante dieléctrica relativa comprendida entre 6 y 12 y una rigidez dieléctrica mayor de 5 kV/mm, y una capa de aislamiento externa, - cortar tramos de dicho tubo, teniendo cada uno de ellos una longitud correspondiente a la del manguito, - retirar de cada tramo la capa semiconductora interna, dejando solamente una porción central de la misma para proporcionar un electrodo de material semiconductor que tiene una forma cónica acabada en punta, conformar cada tramo. El inconveniente que presenta este documento es que se refiere exclusivamente a una protección contra altas concentraciones de campo eléctrico, y no aporta ninguna solución en caso de rotura de cables de alta tensión como sí lo hace la invención propuesta. Thus, in document ES 2 131 725 T3 we find a process for the manufacture of a cover sleeve for a medium voltage cable connection, which comprises the following steps: - extruding a multi-tubular tubular structure together layers, comprising an internal semiconductor layer, an intermediate field control layer having a relative dielectric constant between 6 and 12 and a dielectric strength greater than 5 kV / mm, and an external insulation layer, - cut sections of said tube, each of them having a length corresponding to that of the sleeve, - removing from each section the inner semiconductor layer, leaving only a central portion thereof to provide an electrode of semiconductor material having a conical shape ending in a point, make up each section. The drawback presented by this document is that it refers exclusively to a protection against high concentrations of electric field, and does not provide any solution in case of breakage of high voltage cables as the proposed invention does.
Por otro lado, existen otros aparatos de maniobra, que deben proteger a las personas y/o a las cosas contra efectos peligrosos de la corriente eléctrica, como interruptores de protección de corriente de defecto, interruptores automáticos de protección de líneas de conducción de la red, interruptores automáticos de protección de líneas de corriente principal, interruptores de protección de motores, disyuntores de fuerza y similares, contienen mecanismos de disparo, que detectan las corrientes de defecto y las sobrecargas o los cortocircuitos, y desconectan luego los mecanismos de conmutación cuando se sobrepasan los valores límite. Entonces se abren los contactos de la corriente principal de los aparatos de maniobra, de manera que normalmente ya no puede pasar a través de ellos ninguna corriente perjudicial. Pero, puede ocurrir que en un caso serio fallen los aparatos de maniobra de este tipo, por ejemplo porque quedan pegados sus mecanismos de disparo, se bloquean los mecanismos de conmutación, se sueldan los contactos o se producen otros defectos. En tal caso quedan expuestas a riesgos considerables las personas y/o las cosas que se deben proteger, en especial en caso de fallo de un interruptor de protección de corriente de defecto. En este caso hay documentos como el DE -A- 42 11 079 y el US -A- 2 757 259. Sin embargo, ninguna de estas aportaciones soluciona el problema del gran peligro que ocasiona la caída de líneas de alta tensión. On the other hand, there are other maneuvering devices, which must protect people and / or things against dangerous effects of electric current, such as fault current protection switches, network circuit line protection circuit breakers, automatic main line protection circuit breakers, motor protection switches, force circuit breakers and the like, contain trip mechanisms, which detect fault currents and overloads or short circuits, and then disconnect the switching mechanisms when they are exceeded The limit values. Then the contacts of the main current of the maneuvering devices are opened, so that no harmful current can normally pass through them anymore. But, it can happen that in a serious case, the maneuvering devices of this type fail, for example because their firing mechanisms are stuck, the switching mechanisms are blocked, the contacts are soldered or other defects occur. In this case, people and / or things that must be protected are exposed to considerable risks, especially in the event of a failure of a power protection switch default In this case there are documents such as DE-A-42 11 079 and US-A-2 757 259. However, none of these contributions solve the problem of the great danger caused by the fall of high voltage lines.
Otro ejemplo lo tenemos en el documento ES 2 156 536 B1 en el que se aporta un dispositivo de protección para redes de distribución de baja tensión. La misma se refiere a un dispositivo de protección de las redes eléctricas de baja tensión, contra las sobreintensidades y contra las sobrecargas, que comporta un zócalo aislante provisto por lo menos de una primera y una segunda mordazas destinadas respectivamente a recibir un primer y un segundo bornes de contacto de un módulo destinado a cortar la corriente eléctrica que circula por la línea en caso de sobreintensidades y de sobrecargas, una empuñadura de prensión destinada a extraer el citado módulo con respecto del zócalo aislante. Según la invención, dicho módulo comporta un interruptor gobernado montado en dicho zócalo, con un cartucho fusible normalizado. Al igual que los otros documentos mencionados, esta invención no ofrece, a diferencia de la invención propuesta, una solución a la problemática existente. Another example is in document ES 2 156 536 B1 in which a protection device for low voltage distribution networks is provided. It refers to a device for the protection of low-voltage electrical networks, against overcurrents and against overloads, which involves an insulating socket provided with at least one first and second jaws respectively intended to receive a first and a second Contact terminals of a module designed to cut off the electric current flowing through the line in case of overcurrents and overloads, a clamping handle designed to remove said module with respect to the insulating socket. According to the invention, said module comprises a governed switch mounted on said socket, with a standard fuse cartridge. Like the other documents mentioned, this invention does not offer, unlike the proposed invention, a solution to the existing problem.
Así vemos, que hasta ahora no se conocía un sistema de protección que por sus novedosas características resuelva los inconvenientes mencionados anteriormente tanto en cuanto a los documentos citados como a otras invenciones o protectores que encontramos en el estado de la técnica. Thus, we see that until now a protection system was not known that, due to its novel characteristics, resolves the aforementioned problems both in terms of the documents cited and other inventions or protectors that we find in the state of the art.
Tomando en consideración los casos mencionados y analizados los argumentos conjugados, con la invención que se propone en este documento se da lugar a un resultado final en el que se aportan aspectos diferenciadores significativos frente al estado de la técnica actual, y donde se aportan una serie de avances en las máquinas ya conocidas con sus ventajas correspondientes. En particular: Taking into consideration the cases mentioned and analyzing the conjugate arguments, with the invention proposed in this document, a final result is produced in which significant differentiating aspects are provided in relation to the state of the art, and where a series is provided. of advances in known machines with their corresponding advantages. In particular:
Se aporta una solución eficaz que elimina el riesgo que produce la rotura de cables de alta tensión, especialmente en carreteras y zonas urbanas. An effective solution is provided that eliminates the risk of breakage of high voltage cables, especially on roads and urban areas.
- El sistema es sencillo y práctico, careciendo de complejidades que encarezcan la solución o dificulten su aplicación. - The system is simple and practical, lacking complexities that make the solution more expensive or hinder its application.
Resulta un sistema respetable con el medio ambiente ya que no cuenta con elementos contaminantes ni aumenta el consumo eléctrico. It is a system that respects the environment because it does not have pollutants or increases electricity consumption.
Se aporta una solución completamente novedosa y llena de ventajas, que abre un nuevo campo de análisis y estudio al estado de la técnica. A completely new and full of advantages solution is provided, which opens a new field of analysis and study to the state of the art.
Se mejora la calidad de vida de las personas que viven en zonas por donde transcurren líneas de alta tensión, dotándolas de mayor seguridad. The quality of life of people living in areas where high-voltage lines run is improved, providing them with greater security.
Así, la presente invención está constituida a partir de los siguientes elementos: Thus, the present invention is constituted from the following elements:
Una caja rectangular de fibra de vidrio cubierta por una capa de plástico, y que presenta en uno de sus extremos una pletina con orificio central en el que va conectada una grapa por la que discurre un cable de alta tensión. Dicha caja alberga en toda su longitud interior un cuerpo de aluminio en forma de U, cubierto interiormente por una capa de goma aislante, y que presenta una mayor profundidad en el extremo en el que se encuentra la pletina, y una menor profundidad en el extremo opuesto. En la zona de mayor profundidad de dicho cuerpo de aluminio se encuentra alojada en un carril guía, vertical y longitudinalmente, una cuchilla de acero, unida solidariamente a un hilo de acero flexible que, saliendo de la caja por el extremo opuesto al de la pletina, y discurriendo por dentro de un tubo de fibra de vidrio, interconecta las cajas conectadas con los otros cables de alta tensión. El tubo presenta unas muescas laterales en la zona de salida del hilo de acero de la caja. A rectangular fiberglass box covered by a plastic layer, and presenting at one of its ends a plate with a central hole in which a clip is connected through which a high voltage cable runs. Said box houses a full U-shaped aluminum body, covered internally by an insulating rubber layer, and which has a greater depth at the end where the plate is located, and a lower depth at the end opposite. In the area of greater depth of said aluminum body is housed in a guide rail, vertically and longitudinally, a steel blade, joined in solidarity with a flexible steel wire which, leaving the box at the opposite end of the plate , and running inside a fiberglass tube, interconnects the boxes connected with the Other high voltage cables. The tube has lateral notches in the exit area of the steel wire of the box.
El mecanismo de funcionamiento es sencillo. Debido a la fuerza que produce el cable al partirse, el sistema de protección caería y se rompería el tubo en la zona de las muescas, lo que tiraría del hilo de acero flexible arrastrando la cuchilla hacia la zona de menor profundidad del cuerpo de aluminio, cortando así la capa de goma aislante y haciendo contacto con el aluminio. Este movimiento arrastraría las cuchillas de los otros protectores que se encuentran conectados a los otros cables de alta tensión, cortando sus respectivos aislantes, entrando en tensión y provocando el cortocircuito. Así, antes de que el cable pueda llegar al suelo, la línea ya estará sin servicio, evitándose cualquier tipo de peligro. The operating mechanism is simple. Due to the force that the cable produces when splitting, the protection system would fall and the tube would break in the area of the notches, which would pull the flexible steel wire by dragging the blade towards the shallowest area of the aluminum body, cutting the insulating rubber layer and making contact with the aluminum. This movement would drag the blades of the other protectors that are connected to the other high voltage cables, cutting their respective insulators, entering voltage and causing the short circuit. Thus, before the cable can reach the ground, the line will already be without service, avoiding any type of danger.
Para una mejor comprensión de esta memoria descriptiva se acompaña un dibujo que a modo de ejemplo no limitativo, describen una realización preferida de la invención: For a better understanding of this specification, a drawing is attached which, by way of non-limiting example, describes a preferred embodiment of the invention:
Figura 1.- Sección en alzado del protector Figure 1.- Elevation section of the protector
En dichas figuras se destacan los siguientes elementos numerados; These figures highlight the following numbered elements;
1. Caja rectangular de fibra de vidrio 1. Rectangular fiberglass box
2. Capa de plástico 2. Plastic layer
3. Pletina 3. Plate
4. Grapa 4. Staple
5. Cable de alta tensión 5. High voltage cable
6. Cuerpo de aluminio 6. Aluminum body
7. Capa de goma aislante 7. Rubber insulating layer
8. Zona de mayor profundidad 8. Area of greater depth
9. Zona de menor profundidad 9. Shallower area
10. Carril guía 10. Guide rail
11. Cuchilla de acero 11. Steel blade
12. Hilo de acero 12. Steel wire
13. Tubo de fibra de vidrio 14. Muescas laterales 13. Fiberglass tube 14. Side notches
Una realización preferida de la invención propuesta, se constituye a partir de los siguientes elementos: A preferred embodiment of the proposed invention is constituted from the following elements:
Una caja (1 ) rectangular de fibra de vidrio cubierta por una capa de plástico (2), y que presenta en uno de sus extremos una pletina (3) con orificio central en el que va conectada una grapa (4), y por la que discurre un cable de alta tensión (5). Dicha caja alberga en toda su longitud interior un cuerpo de aluminio (6) en forma de U, cubierto interiormente por una capa de goma aislante (7), y que presenta una zona de mayor profundidad (8) en el extremo en el que se encuentra la pletina, y una de menor profundidad (9) en el extremo opuesto. En la zona de mayor profundidad de dicho cuerpo de aluminio se encuentra alojada en un carril guía (10), vertical y longitudinalmente, una cuchilla de acero (11 ), unida solidariamente a un hilo de acero (12) flexible que, saliendo de la caja por el extremo opuesto al de la pletina, y discurriendo por dentro de un tubo de fibra de vidrio (13), interconecta las cajas conectadas con los otros cables de alta tensión. El tubo presenta unas muescas (14) laterales en la zona de salida del hilo de acero de la caja. A rectangular box (1) of fiberglass covered by a plastic layer (2), and presenting at one of its ends a plate (3) with central hole in which a clip (4) is connected, and by the that runs a high voltage cable (5). Said housing houses a full-length aluminum body (6) in its entire interior length, covered internally by an insulating rubber layer (7), and which has a deeper area (8) at the end where find the plate, and a shallower one (9) at the opposite end. In the area of greater depth of said aluminum body is housed in a guide rail (10), vertically and longitudinally, a steel blade (11), joined together with a flexible steel wire (12) which, leaving the box at the opposite end of the plate, and running inside a fiberglass tube (13), interconnects the boxes connected with the other high voltage cables. The tube has lateral notches (14) in the exit area of the steel wire from the box.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201001415A ES2381830B1 (en) | 2010-11-04 | 2010-11-04 | HIGH VOLTAGE LINE BREAK PROTECTOR |
| ESP201001415 | 2010-11-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2012059609A1 true WO2012059609A1 (en) | 2012-05-10 |
Family
ID=46024051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/ES2011/000330 Ceased WO2012059609A1 (en) | 2010-11-04 | 2011-11-02 | Protection against high-voltage line breaks |
Country Status (2)
| Country | Link |
|---|---|
| ES (1) | ES2381830B1 (en) |
| WO (1) | WO2012059609A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2821604A (en) * | 1952-11-29 | 1958-01-28 | Westinghouse Electric Corp | Fuse constructions |
| US3924215A (en) * | 1974-12-12 | 1975-12-02 | Danny R Allison | Hi-line voltage breaker and fuse |
| US5315064A (en) * | 1991-11-08 | 1994-05-24 | William D. Piper | Suspended line breakaway device |
| WO2003107360A1 (en) * | 2002-06-16 | 2003-12-24 | Maclean-Fogg Company | Composite insulator |
-
2010
- 2010-11-04 ES ES201001415A patent/ES2381830B1/en not_active Expired - Fee Related
-
2011
- 2011-11-02 WO PCT/ES2011/000330 patent/WO2012059609A1/en not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2821604A (en) * | 1952-11-29 | 1958-01-28 | Westinghouse Electric Corp | Fuse constructions |
| US3924215A (en) * | 1974-12-12 | 1975-12-02 | Danny R Allison | Hi-line voltage breaker and fuse |
| US5315064A (en) * | 1991-11-08 | 1994-05-24 | William D. Piper | Suspended line breakaway device |
| WO2003107360A1 (en) * | 2002-06-16 | 2003-12-24 | Maclean-Fogg Company | Composite insulator |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2381830B1 (en) | 2013-05-08 |
| ES2381830A1 (en) | 2012-06-01 |
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