CN107993880A - A kind of pole with current-taking function - Google Patents

Abstract

A solid-sealed pole with the function of taking electricity, including a sleeve and a vacuum interrupter arranged on the inner side of the sleeve. The front part of the inner side of the cylinder is also equipped with a lower outlet conductive rod connected to the lower outlet end, and a first power-taking sensor is implanted and fixed in the front inner wall of the sleeve, and the first power-taking sensor is connected to the said first power-taking sensor. The conductive rod of the lower outgoing line is connected and conducted; the inner wall of the back of the sleeve is implanted with a second power-taking sensor, and the second power-taking sensor is connected and conducted with the upper incoming line end. The invention not only has the function of taking electricity, but also replaces the electromagnetic voltage transformer, provides electric energy for the operation of the control terminal and the circuit breaker, and makes the complex and bulky electrical equipment in the early outdoor pole-mounted distribution network simple and small It can improve the electrical insulation performance and outdoor protection ability of electrical equipment, simplify the installation of the power grid, and improve the connection reliability.

Description

A solid-sealed pole with the function of taking electricity

technical field

The invention relates to the technical field of high-voltage switchgear, in particular to a solid-sealed pole with the function of taking electricity.

Background technique

At present, the outdoor smart distribution network technology based on the primary and secondary integration of the Internet of Things technology is becoming more and more mature, requiring the switchgear of the outdoor smart distribution network to have real-time online detection of voltage, current and power loss in the grid system. parameters, so real-time transmission of power grid operation data, reliable and stable power acquisition and system are very important.

The outdoor vacuum circuit breaker on the pole is an important switching element of the overhead line of the power grid, which plays the role of protecting and controlling the power grid line; The components are integrally implanted into the epoxy resin to form a solid-sealed pole, which plays the role of insulation and switching.

Traditionally, the solid-sealed pole is the fixed carrier of the vacuum interrupter; the power distribution network on the outdoor pole uses electromagnetic voltage transformers, which are electrical equipment independent of the vacuum circuit breaker on the outdoor pole. It is usually installed on both sides of the incoming and outgoing lines of the vacuum circuit breaker on the outdoor column, and converts high-voltage electricity into low-voltage electricity to provide electric energy for the operation of control terminals and circuit breakers. Electromagnetic voltage transformers are large in size and complex in structure, and are prone to resonance. When the secondary short circuit occurs, overcurrent will burn the transformer; therefore, the complexity of the distribution network structure will be increased, and the electrical insulation performance and waterproof of the switchgear will be reduced. , dustproof and other outdoor protection capabilities. It does not meet the requirements of the new outdoor pole-mounted intelligent distribution network for the stability, safety and portability of electrical equipment, and at the same time increases the risk of failure of the distribution network.

Contents of the invention

The invention provides a solid-sealed pole with the function of taking electricity, and its main purpose is to overcome the complex structure, large volume and heavy weight of the voltage transformer in the existing outdoor pole distribution network, which will increase the structure of the entire distribution network Complexity flaws.

In order to solve the problems of the technologies described above, the present invention adopts the following technical solutions:

A solid-sealed pole with the function of taking electricity, including a sleeve and a vacuum interrupter arranged on the inner side of the sleeve. The front part of the inner side of the cylinder is also equipped with a lower outlet conductive rod connected to the lower outlet end,

The inner wall of the front part of the sleeve is implanted with a first power-taking sensor, and the first power-taking sensor is connected to the conductive rod of the lower outgoing line;

The inner wall of the back of the sleeve is implanted with a second power-taking sensor, and the second power-taking sensor is connected to the upper incoming line end; the first power-taking sensor and the second power-taking sensor are connected through the ring The epoxy resin APG process is cast and implanted and sealed on the inner wall of the sleeve to form an integral body with the sleeve.

Further, the sleeve is molded by epoxy resin APG process.

Further, both the first power-taking sensor outlet terminal and the second power-taking sensor outlet terminal extend to the bottom end of the sleeve to connect with the equipment in the circuit breaker case.

Further, both the first power-taking sensor and the second power-taking sensor are electronic voltage transformers.

Further, the lower outgoing line end is connected to the lower outgoing line conductive rod through a soft connection.

Further, the outer wall of the sleeve is covered with a silicone shell.

Compared with prior art, the beneficial effect that the present invention produces is:

The present invention has simple structure and strong practicability. By fixing the power transformer on the inner side of a solid-sealed pole sleeve, the present invention not only has the function of taking power, but also provides electric energy for the operation of control terminals and circuit breakers, and can Miniaturize the complex and bulky electrical equipment in the early outdoor pole-mounted distribution network, improve electrical insulation performance and outdoor protection capabilities, simplify the installation of the power grid, and improve connection reliability.

Description of drawings

Fig. 1 is a side half-sectional schematic diagram of the present invention.

Fig. 2 is a front half-sectional schematic view of the present invention.

Detailed ways

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

Refer to Figure 1 and Figure 2. A solid-sealed pole with the function of taking electricity, including a sleeve 1 and a vacuum interrupter 2 arranged on the inner upper part of the sleeve 1. The upper and lower ends of the vacuum interrupter 2 have an upper wire terminal 21 and a lower wire outlet respectively. end 22, the front part of the inner side of the sleeve 1 is also equipped with a lower outlet conductive rod 3 connected to the lower outlet end 22, in addition,

The front inner wall of the sleeve 1 is implanted with a first power-taking sensor 4, and the first power-taking sensor 4 is connected and conducted with the lower outgoing line conductive rod 3;

A second power-taking sensor 5 is implanted and fixed on the back inner wall of the sleeve 1 , and the second power-taking sensor 5 is connected and conducted with the upper wire terminal 21 . The function of the power-taking sensor is to provide electric energy for the operation of the control terminal and the vacuum circuit breaker after the high-voltage electricity of the power grid becomes low-voltage power. Therefore, the present invention uses a power-taking sensor to add a power-taking function to the solid-sealed pole. And the first power-taking sensor 4 and the second power-taking sensor 5 are two power-taking devices with independent functions, and any single fixed installation can be selected. Wherein, both the first power-taking sensor 4 and the second power-taking sensor 5 are electronic voltage transformers.

By fixing the first and second power-taking sensors inside the sleeve of a solid-sealed pole, the present invention not only has the power-taking function to provide electric energy for the operation of the control terminal and the circuit breaker, but also can make the early complicated and bulky The equipment has become miniaturized, the electrical insulation performance and outdoor protection ability have been improved, the installation of the power grid has been simplified, and the connection reliability has been improved.

Refer to Figure 1 and Figure 2. Specifically, the sleeve 1 is molded by epoxy resin APG process. Both the first power-taking sensor 4 and the second power-taking sensor 5 are poured, implanted and sealed on the inner wall of the sleeve 1 through the epoxy resin APG process to form an integral body with the sleeve, thereby greatly improving the stability of the overall structure, and further Improved electrical insulation performance and outdoor protection.

Refer to Figure 1 and Figure 2. Both the first power-taking sensor outlet terminal 41 and the second power-taking sensor outlet terminal 51 extend to the bottom of the sleeve 1 to connect with electrical accessories and other equipment in the vacuum circuit breaker cabinet. Specifically, the sleeve 1 is installed on the circuit breaker case 8, so that the sleeve 1 and the circuit breaker case 8 form a common box; the first power-taking sensor outlet terminal 41 and the second power-taking sensor outlet terminal 51 are connected from the bottom plate of the sleeve lead to the inside of the circuit breaker enclosure. The circuit breaker is connected with the control terminal 9 through the aviation plug 81 again. After the first power-taking sensor 4 or the second power-taking sensor 5 obtains the high-voltage power on the incoming line side and the outgoing line side, it converts the high-voltage power into low-voltage power, and provides a source for the reliable operation of circuit breakers and electrical equipment through the control terminal Constant power.

Refer to Figure 1 and Figure 2. Specifically, the lower outlet end 22 is connected to the lower outlet conductive rod 3 through the flexible connection 6 . The flexible connection 6 can be a silver-plated copper bar flexible connection. In addition, the outer wall of the sleeve 1 can also be coated with a silicone shell 7 .

The above is only a specific embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any non-substantial changes made to the present invention by using this concept should be an act of violating the protection scope of the present invention.

Claims (6)

1. a kind of pole with current-taking function, including sleeve and the vacuum interrupter arranged on sleeve inside upper part, should The upper and lower ends of vacuum interrupter have enterprising line end and a lower wire end respectively, and the front portion on the inside of the sleeve is also equiped with and institute State the lower outlet conductive pole of lower wire end connection, it is characterised in that：

The front inner wall implantation of the sleeve is installed with first and takes electric transducer, this first takes electric transducer to be led with the lower outlet Electric pole connection conducting；The back inner wall implantation of the sleeve is installed with second and takes electric transducer, this second takes electric transducer and institute State enterprising line end connection conducting；

Described first takes electric transducer to take electric transducer to pour into a mould implantation sealing described by epoxy resin APG techniques with second Sleeve lining forms an entirety with the sleeve.

A kind of 2. pole with current-taking function as claimed in claim 1, it is characterised in that：The sleeve passes through asphalt mixtures modified by epoxy resin Fat APG technique moulding by casting.

A kind of 3. pole with current-taking function as claimed in claim 1, it is characterised in that：Described first takes electric transducer Outlet terminal and second takes that electric transducer outlet terminal all extends to the bottom of the sleeve and the equipment in breaker cabinet connects It is logical.

A kind of 4. pole with current-taking function as claimed in claim 1, it is characterised in that：Described first takes electric transducer It is electronic type voltage transformer to take electric transducer with second.

A kind of 5. pole with current-taking function as claimed in claim 1, it is characterised in that：The lower wire end passes through soft Connection is connected conducting with the lower outlet conductive pole.

A kind of 6. pole with current-taking function as claimed in claim 1, it is characterised in that：The sleeve lateral wall cladding There is silica gel shell.