A pole-mounted switch with integral coupler and high voltage capacitor power supply

Abstract

The utility model relates to a pole switch with integrated coupler and high voltage capacitor power supply, including, with high voltage bus power supply VA connection's first capacitance CH, first capacitance CH connects the primary coil one end of power -on transformer T, and power -on transformer T's primary coil and power -on transformer T's secondary coil one side connection and with signal coupler connection, the utility model discloses the capacitor power supply and high frequency communication coupler integration to an organic whole, just constitutes the 10KV primary and secondary fusion capacitor power supply with capacitor power supply and high frequency communication function.

Description

Technical Field

[0001] This utility model belongs to the field of high-voltage power extraction technology, specifically a pole-mounted switch with an integrated coupler and a high-voltage capacitor power supply. Background Technology

[0002] In the intelligent upgrading of power distribution networks, pole-mounted switches, as key node devices, not only need to perform line on / off control, but also need to have reliable power supply (for their own controllers, sensors, communication modules, etc.) and remote communication capabilities (for status uploading and command reception). For pole-mounted switches that draw power directly from high-voltage lines (such as 10kV), capacitor voltage division is a common solution. It uses high-voltage capacitors (such as CH) to obtain energy from the bus (such as phase VA), and then converts it into low-voltage DC power through isolation transformers (such as power-taking transformer T) and voltage stabilizing circuits.

[0003] Traditional solutions typically design the capacitor-powered power module and the communication coupler module as separate units:

[0004] Size and cost issues: Separate designs require independent components (high-voltage capacitors, power-taking transformers, voltage regulator circuits; coupling transformers, coupling capacitors, etc.), packaging, and connections, leading to increased overall equipment size, structural complexity, and higher material and manufacturing costs, which is detrimental to the miniaturization and economic requirements of pole-mounted switches. Furthermore, the two functional modules are installed adjacent to each other, operating at different frequencies (power taking focuses on power frequency energy, while communication uses high-frequency signals), posing a risk of mutual electromagnetic interference, potentially affecting power supply stability or communication quality. Additionally, separate designs may introduce redundancy or efficiency losses in the energy transfer path. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Given the following technical problems in the existing technology: how to effectively reuse key high-voltage components, especially high-voltage capacitors CH and isolation transformers, to realize a single set of hardware that can simultaneously serve both power supply and communication functions, and avoid resource waste?

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a pole-mounted switch with an integrated coupler and a high-voltage capacitor power supply, including a first capacitor CH connected to the high-voltage bus power supply VA, the first capacitor CH being connected to one end of the primary coil of the power supply transformer T, and the primary coil and one side of the secondary coil of the power supply transformer T being connected and connected to the signal coupler.

[0008] As a preferred technical solution for a pole-mounted switch with an integrated coupler and a high-voltage capacitor power supply, the secondary coil of the power supply transformer T is connected to the input of a voltage regulator circuit, and the output of the voltage regulator circuit serves as the output of the power supply.

[0009] As a preferred technical solution for a pole-mounted switch with an integrated coupler and a high-voltage capacitor power supply, the signal coupler includes a coupling transformer Tn, with one end of the primary coil and the secondary coil of the coupling transformer Tn short-circuited and grounded.

[0010] As a preferred technical solution for a pole-mounted switch with an integrated coupler and a high-voltage capacitor power supply, one section of the secondary coil of the coupling transformer Tn is connected to a second capacitor CL.

[0011] As a preferred technical solution for a pole-mounted switch with an integrated coupler and a high-voltage capacitor power supply, the other end of the second capacitor CL is connected to the other end of the secondary coil of the coupling transformer Tn to the signal transmission port Po / Pi.

[0012] The beneficial effects of this utility model are as follows: This utility model integrates a capacitor-powered power supply and a high-frequency communication coupler into one unit, thus forming a 10KV primary and secondary integrated capacitor-powered power supply with capacitor power supply and high-frequency communication functions. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0014] Figure 1 This is a schematic diagram of the principle structure of this utility model.

[0015] Figure label: Signal coupler 1. Detailed Implementation

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0019] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0020] Example 1

[0021] Reference Figure 1 This embodiment provides a pole-mounted switch with an integrated coupler and a high-voltage capacitor power supply, including a first capacitor CH connected to the high-voltage bus power supply VA, the first capacitor CH being connected to one end of the primary coil of the power supply transformer T, and the primary coil and one side of the secondary coil of the power supply transformer T being connected and connected to the signal coupler 1.

[0022] The secondary coil of the power-taking transformer T is connected to the input of a voltage regulator circuit, and the output of the voltage regulator circuit serves as the output of the power supply.

[0023] The power transformer converts the primary high-voltage power supplied via CH into an isolated secondary low-voltage power supply. The obtained power is then supplied to the load via a voltage regulator circuit.

[0024] The signal coupler 1 includes a coupling transformer Tn, with one end of the primary coil and one end of the secondary coil of the coupling transformer Tn short-circuited and grounded.

[0025] One section of the secondary coil of the coupling transformer Tn is connected to the second capacitor CL.

[0026] The other end of the second capacitor CL is connected to the other end of the secondary coil of the coupling transformer Tn, which is then connected to the signal transmission port Po / Pi.

[0027] In this embodiment, the device is installed in a 10KV circuit breaker. The first capacitor CH is connected to the high-voltage bus power supply VA for power. In this embodiment, the first capacitor CH is both a power-drawing capacitor and a high-voltage coupling capacitor of the signal coupler 1. The second capacitor CL is a secondary coupling capacitor in the signal coupler 1. This circuit can achieve both power drawing and communication functions.

[0028] Integrating the capacitor-powered power supply and the high-frequency communication coupler into one unit constitutes a 10KV primary and secondary integrated capacitor-powered power supply with capacitor power supply and high-frequency communication functions.

[0029] This invention not only retains the basic functions of a general circuit breaker but also adds carrier communication capabilities, and in expanded applications, supports intelligent requirements such as remote communication, status monitoring, fault location, and remote control. This enables traditional pole-mounted circuit breakers to transmit high-frequency signals for other purposes, greatly enhancing their applicability in smart grids.

[0030] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0031] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A pole-mounted switch with an integrated coupler and a high-voltage capacitor power supply, characterized in that: It includes a first capacitor CH connected to the high-voltage bus power supply VA, the first capacitor CH being connected to one end of the primary coil of the power taking transformer T, and the primary coil and the secondary coil of the power taking transformer T being connected to one side and connected to the signal coupler (1).

2. The pole-mounted switch with an integrated coupler and a high-voltage capacitor power supply according to claim 1, characterized in that: The secondary coil of the power-taking transformer T is connected to the input of a voltage regulator circuit, and the output of the voltage regulator circuit serves as the output of the power supply.

3. The pole-mounted switch with an integrated coupler and a high-voltage capacitor power supply according to claim 2, characterized in that: The signal coupler (1) includes a coupling transformer Tn, with one end of the primary coil and the secondary coil of the coupling transformer Tn short-circuited and grounded.

4. The pole-mounted switch with an integrated coupler and a high-voltage capacitor power supply according to claim 3, characterized in that: One section of the secondary coil of the coupling transformer Tn is connected to the second capacitor CL.

5. The pole-mounted switch with an integrated coupler and a high-voltage capacitor power supply according to claim 4, characterized in that: The other end of the second capacitor CL is connected to the other end of the secondary coil of the coupling transformer Tn to the signal transmission port Po / Pi.

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