Prefabricated automatic switch mounting assembly

Abstract

The utility model relates to a prefabricated automatic switch installation assembly. The prefabricated automatic switch installation assembly comprises a positioning rope which is installed on an electric pole and used for positioning and marking the installation positions of a wire, an isolating switch, a pole-mounted circuit breaker, a drop-out fuse and a voltage transformer; a plurality of prefabricated leads are preset according to the positioning marks on the positioning rope; the prefabricated leads are divided into a first type to a fourth type, the length of the first type of prefabricated leads is matched with the distance between a wire on the positioning rope and the disconnecting switch, and the length of the second type of prefabricated leads is matched with the distance between the disconnecting switch on the positioning rope and the pole-mounted circuit breaker. The length of the third type prefabricated lead is matched with the distance between a circuit breaker on the upper column of the positioning rope and a drop-out fuse, and the length of the fourth type prefabricated lead is matched with the distance between the drop-out fuse on the positioning rope and a voltage transformer. According to the utility model, the installation time of the automatic switch can be shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical engineering construction, in particular to a prefabricated automatic switch installation component suitable for installing an automatic switch. Background Art

[0002] With the increasing requirements for distribution network automation and user-side management, the demand for installing automated switches / intelligent switches through live working has increased significantly in recent years, and this type of live working sites has become more and more common.

[0003] The existing method of live work for installing automatic switches is: after the live team disconnects the lead, the installation workers climb up the pole, disconnect the drop-type fuse on the pole, measure the size of each section that needs to be installed, and after getting down the pole, cut multiple lead wires of corresponding lengths according to the measurement results and crimp the terminal blocks, and then climb the pole again to complete the lead installation of the automatic switch. After the installation is completed, the live team removes the overlap and puts the automatic switch into use.

[0004] It can be seen that at present, in the work site of live-line operation to install automatic switches, there is a problem of uncertain lead length in each operation due to the uncertainty of the installation position. Each operation requires actual measurement at the work site and then a series of processing on the wire length, joints, etc., and the live-line workers need to wait until the leads are completed and the automatic switches are installed before they can continue construction, which greatly increases the working time of the live-line operation team. Summary of the Invention

[0005] The purpose of the utility model is to provide a prefabricated automatic switch installation component capable of shortening the time of live working.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A prefabricated automatic switch installation assembly is used in live operations for installing an automatic switch on a pole and wiring the switch. The prefabricated automatic switch installation assembly includes:

[0008] A positioning rope installed on the pole and used to mark the installation positions of the conductors, disconnectors, pole-mounted circuit breakers, drop-out fuses, and voltage transformers on the pole;

[0009] A plurality of prefabricated leads preset according to the installation positions of the conductors, disconnectors, pole-mounted circuit breakers, drop-out fuses, and voltage transformers on the poles indicated by the positioning marks on the positioning ropes;

[0010] The prefabricated leads are divided into four categories: first-category prefabricated leads, second-category prefabricated leads, third-category prefabricated leads, and fourth-category prefabricated leads. The length of the first-category prefabricated leads is adapted to the distance between the conductor on the positioning rope and the disconnector, the length of the second-category prefabricated leads is adapted to the distance between the disconnector on the positioning rope and the pole-mounted circuit breaker, the length of the third-category prefabricated leads is adapted to the distance between the pole-mounted circuit breaker on the positioning rope and the drop-out fuse, and the length of the fourth-category prefabricated leads is adapted to the distance between the drop-out fuse on the positioning rope and the voltage transformer.

[0011] The prefabricated lead includes a wire body and connection terminals installed at both ends of the wire body.

[0012] The wiring terminal comprises a sleeve end sleeved on the end of the wire body and a locking end connected to the sleeve end. The locking end is provided with a through hole matched with a locking bolt.

[0013] The locking end is connected to the axial end of the sleeve end.

[0014] The positioning rope comprises a rope body, a mounting member for detachably mounting the rope body on the pole along the axial direction of the pole,

[0015] The mounting member comprises a hanging ring arranged at one end of the rope body.

[0016] Due to the application of the above technical solution, the utility model has the following advantages compared with the existing technology: the utility model can shorten the installation time of the automatic switch, reduce the waiting and working time of the live working personnel, and can also improve the accuracy of the live working. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Attachment Figure 1 This is a schematic diagram of the prefabricated automatic switch installation assembly of the present invention.

[0018] Attachment Figure 2 This is a schematic diagram of the main view of the pole after the automatic switch is installed using the prefabricated automatic switch installation component of the utility model (single-circuit double-sided).

[0019] Attachment Figure 3 The figure is a side view of a pole after the automatic switch is installed using the prefabricated automatic switch installation assembly of the present invention (single-circuit double-sided).

[0020] Attachment Figure 4 This is a schematic diagram of the main view of the pole after the automatic switch is installed using the prefabricated automatic switch installation component of the utility model (double-circuit double-sided).

[0021] Attachment Figure 5The figure is a side view of a pole after the automatic switch is installed using the prefabricated automatic switch installation assembly of the present invention (double-circuit double-side).

[0022] In the above drawings: 1. Pole-mounted circuit breaker; 2. Switch bracket; 3. Wire lead; 4. Lightning arrester upper lead; 5. Lightning arrester; 6. Voltage transformer; 7. Voltage transformer lead; 8. Grounding down conductor; 9. Electric pole; 10. Transformer bracket; 11. Switch control box; 12. Disconnector; 13. Drop-out fuse; 14. Wire; 15. Positioning rope; 16. Prefabricated lead; 17. Rope body; 18. Hanging ring; 19. Wire body; 20. Terminal block. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0024] Example 1: As shown in the attached Figure 1 As shown, a prefabricated automatic switch installation assembly for live work in which an automatic switch is installed on a pole 9 and connected to wires is provided, comprising a positioning rope 15 and a plurality of prefabricated lead wires 16 to be used in conjunction therewith.

[0025] The positioning rope 15 is installed on the pole 9, and is used to mark the installation positions of the conductor 14, disconnector 12, pole-mounted circuit breaker 1, drop-out fuse 13, and voltage transformer 6 on the pole 9 in the height direction. Based on the positioning rope 15 after positioning, several installation distances can be determined, including at least the distance between the conductor 14 and the disconnector 12, the distance between the disconnector 12 and the pole-mounted circuit breaker 1, the distance between the pole-mounted circuit breaker 1 and the drop-out fuse 13, the distance between the drop-out fuse 13 and the voltage transformer 6, etc.

[0026] The positioning rope 15 includes a rope body 17 and a mounting member for detachably mounting the rope body 17 on the pole 9 along the axial direction of the pole 9. For example, the mounting member includes a hanging ring 18 provided at one end of the rope body 17.

[0027] Several prefabricated leads 16 are pre-placed based on the installation positions of the conductor 14, disconnector 12, pole-mounted circuit breaker 1, dropout fuse 13, and voltage transformer 6 on the pole 9, as indicated by the positioning marks on the positioning rope 15. The prefabricated leads 16 are divided into four categories: first-category prefabricated leads, second-category prefabricated leads, third-category prefabricated leads, and fourth-category prefabricated leads. The length of the first-category prefabricated leads matches the distance between the conductor 14 and disconnector 12 on the positioning rope 15; the length of the second-category prefabricated leads matches the distance between the disconnector 12 and pole-mounted circuit breaker 1 on the positioning rope 15; the length of the third-category prefabricated leads matches the distance between the pole-mounted circuit breaker 1 and dropout fuse 13 on the positioning rope 15; and the length of the fourth-category prefabricated leads matches the distance between the dropout fuse 13 and voltage transformer 6 on the positioning rope 15. The number of various prefabricated lead wires is determined according to the installation mode configured on the pole 9 (single-circuit single-side, single-circuit double-side, double-circuit double-side, etc.).

[0028] The prefabricated lead 16 includes a wire body 19 and terminals 20 mounted on both ends of the wire body 19. The terminals 20 include a sleeve end that fits over the end of the wire body 19 and a locking end connected to the sleeve end. The locking end is connected to the axial end of the sleeve end and has a through hole that mates with a locking bolt.

[0029] To address the issue of inconsistent and uncertain installation locations for various types of equipment, the use of the aforementioned prefabricated automated switch installation assembly can save time during live operations. First, a positioning rope 15 is installed on the pole 9 to mark the height of the installation positions of the conductors 14, disconnector 12, pole-mounted circuit breaker 1, drop-out fuse 13, and voltage transformer 6 on the pole 9. The prefabricated lead wires 16 required for each section are then prefabricated based on the positioning marks on the positioning rope 15. During construction, the corresponding length and quantity of prefabricated lead wires 16 can be brought directly to the construction site. Once the live team has completed the splicing, the installation can be completed by climbing the pole directly. Compared to existing installation methods, this is expected to save approximately 40 minutes of installation time.

[0030] As attached Figure 2-3As shown in the single-circuit, double-sided assembly diagram, the pole 9 is equipped with conductors 14, a disconnector 12 mounted on a switch bracket 2, a pole-mounted circuit breaker 1 mounted below the switch bracket 2, a drop-out fuse 13, a voltage transformer 6 mounted on a transformer bracket 10, and a switch control box 11, distributed from top to bottom. The pole 9 is also equipped with a grounding down conductor 8. From top to bottom, the pole 9 is connected by prefabricated lead wires 16 from the conductor 14 to the disconnector 12, then to the pole-mounted circuit breaker 1, then to the drop-out fuse 13, then to the voltage transformer 6, and finally to the switch control box 11. The first type of prefabricated lead wires connecting the conductor 14 and the disconnector 12 and the second type of prefabricated lead wires connecting the disconnector 12 and the pole-mounted circuit breaker 1 are collectively referred to as conductor leads 3. The fourth type of prefabricated lead wires connecting the drop-out fuse 13 and the voltage transformer 6 are also referred to as voltage transformer leads 7. In addition, several lightning arresters 5 are installed above the pole-mounted circuit breaker 1, and the arrester upper leads 4 are connected to the pole-mounted circuit breaker. The above-mentioned double-sided voltage transformer 6 (PT) adopts a symmetrical installation method, so this installation method is also applicable when the single-sided voltage transformer 6 (PT) is installed.

[0031] As attached Figure 4-5 As shown in the double-circuit double-sided assembly diagram, the connection sequence and method from top to bottom remain unchanged, which is the same as the single-circuit double-sided assembly method.

[0032] Based on this, the installation methods of single-circuit single-side, single-circuit double-side, and double-circuit double-side can be uniformly planned, and factory prefabrication can be carried out using standardized solutions to quickly complete the installation and construction of the automated switch.

[0033] For example, using positioning rope 15, the distance from conductor 14 to disconnector 12 is 80 cm, the distance from disconnector 12 to pole-mounted circuit breaker 1 is 80 cm, the distance from pole-mounted circuit breaker 1 to dropout fuse 13 is 60 cm, and the distance from dropout fuse 13 to voltage transformer 6 is 60 cm. Based on this, three 80 cm prefabricated lead wires (single circuit, single side) or six (single circuit, double sides or double circuit, double sides) are prefabricated, and two 60 cm prefabricated lead wires (single circuit, single side) or four (single circuit, double sides or double circuit, double sides) are prefabricated. Once prefabricated, these materials can be taken to the construction site for installation.

[0034] The application of the above-mentioned prefabricated automatic switch installation components can omit the process of measuring length, determining position and preparing materials, shorten the installation time of the automatic switch, thereby reducing the waiting time of the live working team on site, and can quickly complete the live working task and move on to the next construction site. At the same time, it can improve the accuracy of construction work and avoid installation errors and other problems.

[0035] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention are intended to be included in the scope of protection of the present invention.

Claims

1. A prefabricated automatic switch installation assembly, used in live operations such as installing automatic switches on electric poles and wiring them, characterized by: The prefabricated automatic switch installation assembly includes: A positioning rope installed on the pole and used to mark the installation positions of the conductors, disconnectors, pole-mounted circuit breakers, drop-out fuses, and voltage transformers on the pole; A plurality of prefabricated leads preset according to the installation positions of the conductors, disconnectors, pole-mounted circuit breakers, drop-out fuses, and voltage transformers on the poles indicated by the positioning marks on the positioning ropes; The prefabricated leads are divided into four categories: first-category prefabricated leads, second-category prefabricated leads, third-category prefabricated leads, and fourth-category prefabricated leads. The length of the first-category prefabricated leads is adapted to the distance between the conductor on the positioning rope and the disconnector, the length of the second-category prefabricated leads is adapted to the distance between the disconnector on the positioning rope and the pole-mounted circuit breaker, the length of the third-category prefabricated leads is adapted to the distance between the pole-mounted circuit breaker on the positioning rope and the drop-out fuse, and the length of the fourth-category prefabricated leads is adapted to the distance between the drop-out fuse on the positioning rope and the voltage transformer.

2. The prefabricated automation switch installation assembly according to claim 1, characterized in that: The prefabricated lead includes a wire body and connection terminals installed at both ends of the wire body.

3. The prefabricated automation switch installation assembly according to claim 2, characterized in that: The wiring terminal comprises a sleeve end sleeved on the end of the wire body and a locking end connected to the sleeve end. The locking end is provided with a through hole matched with a locking bolt.

4. The prefabricated automation switch installation assembly according to claim 3, characterized in that: The locking end is connected to the axial end of the sleeve end.

5. The prefabricated automation switch installation assembly according to claim 1, characterized in that: The positioning rope includes a rope body and a mounting member for detachably mounting the rope body on the pole along the axial direction of the pole.

6. The prefabricated automation switch installation assembly according to claim 5, characterized in that: The mounting member comprises a hanging ring arranged at one end of the rope body.

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