Medium-voltage generator car quick access matching device and use method thereof

Abstract

The invention discloses a medium-voltage generator car quick access matching device and a using method thereof. The medium-voltage generator car quick access matching device comprises a wire lap joint assembly and on-pole access assemblies in one-to-one correspondence with three phases of an overhead line. The on-pole access assembly comprises a first on-pole positioning piece, an insulation protection box and a wiring terminal used for being connected with a medium-voltage generator car. The first on-pole positioning piece is arranged on the surface of the insulation protection box, the wiring terminal is located in the insulation protection box, and the surface of the insulation protection box is provided with a cable access port corresponding to the wiring terminal; the wire lap joint assembly is provided with an access end and a lap joint end used for lap joint of an overhead line, and the access end is provided with a grounding fitting. The wiring terminal is electrically connected with the access end, the access end is electrically connected with the lap joint end, and the connection on-off state is adjustable. According to the invention, the live working process is completed in advance, the influence of weather, terrain and other factors on the access use of the medium-voltage vehicle is reduced, the device can be left on a tower, the future working process is simplified, and the speed of responding to power restoration is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of live distribution operations, and in particular to a medium-voltage generator vehicle quick access matching device and a use method thereof. Background Art

[0002] As the dependence on electricity supply increases, the requirements for safe operation of power systems and power supply reliability are also getting higher and higher. Non-stop operation has become a trend. 10kV medium-voltage generator trucks have been promoted and applied, achieving less or even no power outages for the masses.

[0003] For overhead lines, if a medium-voltage generator vehicle is required, live working methods are currently required for access; live working personnel use live working vehicles to perform insulation shielding, phase-by-phase insulation stripping, phase-by-phase suspension of flexible cables, and phase-by-phase splicing on overhead lines.

[0004] However, live working is greatly affected by weather factors, such as live working is prohibited in thunderstorms and high humidity. The on-site access point needs to be able to accommodate a 10kV medium-voltage generator and a live working vehicle to carry out normal operations. It is greatly affected by the terrain, and the use of live working vehicles is cumbersome during access, which cannot meet the rapid response requirements of emergency power supply. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a medium-voltage power generation vehicle quick access supporting device and its use method, reduce the impact of factors such as weather and terrain on the access and use of the medium-voltage vehicle, and at the same time simplify the operation process and improve the speed of response to power restoration.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A medium voltage generator car quick access matching device, comprising a conductor splicing assembly and a pole access assembly corresponding to the three phases of the overhead line;

[0008] The pole access assembly comprises a first pole positioning member, an insulating protection box and a connection terminal for connecting to a medium voltage power generation vehicle;

[0009] The first rod upper positioning member is arranged on the surface of the insulating protection box, the wiring terminal is located in the insulating protection box, and the surface of the insulating protection box is provided with a cable access port corresponding to the wiring terminal;

[0010] The conductor splicing assembly is provided with an access end and a splicing end for splicing an overhead line, and the access end is provided with a grounding accessory;

[0011] The connection terminal is electrically connected to the access end, the access end is electrically connected to the lap end, and the on-off state of the connection is adjustable.

[0012] In order to solve the above technical problems, another technical solution adopted by the present invention is:

[0013] A method for using a medium-voltage generator vehicle quick access supporting device, which is applied to the above-mentioned medium-voltage generator vehicle quick access supporting device, comprises the following steps:

[0014] S1. Construction personnel install the wire splicing assembly and the pole access assembly on the pole tower in advance, and connect the wiring terminal to the access end of the wire splicing assembly;

[0015] S2. A live working worker connects the connecting end of the conductor connecting assembly to the overhead line while keeping the connecting end and the access end disconnected;

[0016] S3. When performing the connection operation of the medium-voltage generator car, the connection operator grounds on the grounding accessories and connects the cables of the medium-voltage generator car to the wiring terminals one by one and one by one;

[0017] S4. The access operator releases the grounding and leaves the pole tower, and restores the electrical connection between the overlapped end and the access end by operating the operating rod.

[0018] The beneficial effects of the present invention are: providing a medium-voltage generator truck quick access supporting device and a method of using the same, installing a conductor splicing assembly and a pole access assembly on the pole tower, relying on the conductor splicing assembly to perform splicing in advance, so that the live working process is completed in advance, avoiding the need to perform live working when accessing the medium-voltage generator truck, reducing the impact of weather, terrain and other factors on the access and use of the medium-voltage truck, and when it is necessary to access the medium-voltage generator truck, the cable of the medium-voltage generator truck can be connected and the splicing can be restored while ensuring the safety of personnel. The operation is convenient, and the device can be left on the pole tower, simplifying future work processes and improving the speed of responding to power restoration. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a pole access assembly of a medium-voltage generator vehicle quick access supporting device of the present invention being installed on a pole tower;

[0020] Figure 2 It is a structural schematic diagram of a conductor connection assembly of a medium-voltage generator vehicle quick access supporting device installed on a pole tower according to the present invention;

[0021] Figure 3 It is a schematic diagram of the steps of using a method for quickly connecting a medium-voltage power generation vehicle to a supporting device according to the present invention.

[0022] Description of labels:

[0023] 1. Positioning piece on the first pole; 2. Insulation protection box; 3. Wiring terminal; 4. Knife switch; 5. Upper lead of knife switch; 6. Lower lead of knife switch; 7. Grounding accessories; 8. Positioning piece on the second pole; 9. Positioning piece on the third pole; 10. Support insulator; 11. Lightning arrester; 12. Protective cover; 13. Flexible wire clamp; 14. Cable support frame; 15. Pole tower. DETAILED DESCRIPTION

[0024] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0025] Please refer to Figure 1 and Figure 2 , a medium voltage generator car quick access matching device, including a conductor lap assembly and a pole access assembly corresponding to the three phases of the overhead line;

[0026] The pole access assembly comprises a first pole positioning member 1, an insulating protection box 2 and a connection terminal 3 for connecting to a medium voltage power generation vehicle;

[0027] The first rod upper positioning member 1 is arranged on the surface of the insulating protection box 2, the wiring terminal 3 is located in the insulating protection box 2, and the surface of the insulating protection box 2 is provided with a cable access port corresponding to the wiring terminal 3;

[0028] The conductor splicing assembly is provided with an access end and a splicing end for splicing an overhead line, and the access end is provided with a grounding accessory 7;

[0029] The connection terminal 3 is electrically connected to the access end, the access end is electrically connected to the lap end, and the on / off state of the connection is adjustable.

[0030] From the above description, it can be seen that the beneficial effects of the present invention are: a conductor splicing assembly and a pole access assembly are installed on the pole tower 15, and splicing is performed in advance by relying on the conductor splicing assembly, so that the live working process is completed in advance, avoiding the need to perform live working when accessing a medium-voltage generator truck, reducing the impact of factors such as weather and terrain on the access and use of the medium-voltage generator truck, and when it is necessary to access a medium-voltage generator truck, the cable of the medium-voltage generator truck can be connected and the splicing can be restored while ensuring the safety of personnel. The operation is convenient, and the device can be left on the pole tower 15, simplifying future work processes and improving the speed of response to power restoration.

[0031] Furthermore, the wire bonding assembly includes a knife switch 4, an upper lead wire 5 and a lower lead wire 6;

[0032] One end of the knife switch 4 is electrically connected to the connection terminal 3 through the knife switch lower lead 6, and the other end of the knife switch 4 is electrically connected to one end of the knife switch upper lead 5, and the other end of the knife switch upper lead 5 is used to bridge the overhead line.

[0033] From the above description, it can be seen that the conductor splicing assembly consists of a knife switch 4, an upper lead 5 and a lower lead 6. By switching the state of the knife switch 4, the access action on the overhead line side is completed, realizing the prospect of live working.

[0034] Furthermore, the wire connection assembly also includes a second rod positioning member 8, and the second rod positioning member 8 is arranged on the knife switch 4.

[0035] It can be seen from the above description that the knife switch 4 is permanently fixed on the pole tower 15 by the second pole positioning member 8, which is convenient for subsequent use and maintenance management.

[0036] Furthermore, the conductor splicing assembly further comprises a third rod positioning member 9 and a supporting insulator 10;

[0037] The knife switch upper lead 5 and the knife switch lower lead 6 are both connected to one of the support insulators 10 , and each of the support insulators 10 is provided with the third rod upper positioning member 9 .

[0038] From the above description, it can be seen that by setting the third pole positioning piece 9 and the supporting insulator 10, the upper lead 5 and the lower lead 6 of the knife switch can be stably installed on the pole tower 15, avoiding the entanglement of other wirings, etc., which brings convenience to the pole operation.

[0039] Furthermore, the conductor bonding assembly further includes a lightning arrester 11;

[0040] The lightning arrester 11 is arranged on the lower lead 6 of the knife switch.

[0041] It can be seen from the above description that the arrangement of the lightning arrester 11 can provide voltage protection.

[0042] Furthermore, a protective cover 12 is provided on the surface of the insulating protection box 2 and covers the cable access port.

[0043] From the above description, it can be seen that the protective cover 12 at the cable access port can effectively prevent dust, rainwater, etc. from entering the interior of the insulating protection box 2 when the device is not needed, ensuring that the insulation performance is not affected.

[0044] Furthermore, a rubber pad is arranged around one side of the cable access port facing the wiring terminal 3 .

[0045] It can be seen from the above description that by providing the rubber pad, flexible support and protection can be provided for the cables of the medium voltage generator vehicle connected to the terminal block 3, and the rubber pad can also prevent slipping.

[0046] Furthermore, a flexible wire clamp 13 is provided on the wiring terminal 3 .

[0047] It can be seen from the above description that by providing the flexible wire clamp 13 to fix the cable of the medium voltage power generation vehicle, the assembly and disassembly is simple, the cost is low, and the maintenance is convenient.

[0048] Furthermore, the pole access assembly further comprises a cable support frame 14 arranged on the pole, and the cable support frame 14 is opposite to the cable access port.

[0049] From the above description, it can be seen that providing a cable support frame 14 to support the cable of the medium voltage generator vehicle helps to optimize the degree of bending that the cable should have when connected, making the connection process more convenient and the connection state more stable.

[0050] Please refer to Figure 3 A method for using a medium-voltage generator vehicle quick access supporting device, which is applied to the above-mentioned medium-voltage generator vehicle quick access supporting device, comprises the following steps:

[0051] S1. The construction personnel install the wire splicing assembly and the pole access assembly on the pole tower 15 in advance, and connect the terminal 3 to the access end of the wire splicing assembly;

[0052] S2. A live working worker connects the connecting end of the conductor connecting assembly to the overhead line while keeping the connecting end and the access end disconnected;

[0053] S3. When performing the connection operation of the medium-voltage power generation vehicle, the connection operator grounds on the grounding accessory 7, and connects the cables of the medium-voltage power generation vehicle to the wiring terminals 3 one by one and phase by phase;

[0054] S4. The access operator releases the grounding and leaves the pole tower 15, and restores the electrical connection between the lap end and the access end by operating the operating rod.

[0055] From the above description, it can be seen that the beneficial effects of the present invention are: a conductor splicing assembly and a pole access assembly are installed on the pole tower 15, and splicing is performed in advance by relying on the conductor splicing assembly, so that the live working process is completed in advance, avoiding the need to perform live working when accessing a medium-voltage generator truck, reducing the impact of factors such as weather and terrain on the access and use of the medium-voltage generator truck, and when it is necessary to access a medium-voltage generator truck, the cable of the medium-voltage generator truck can be connected and the splicing can be restored while ensuring the safety of personnel. The operation is convenient, and the device can be left on the pole tower 15, simplifying future work processes and improving the speed of response to power restoration.

[0056] Please refer to Figure 1 and Figure 2 , Embodiment 1 of the present invention is:

[0057] A medium-voltage generator car quick access matching device comprises a conductor splicing assembly and a pole access assembly corresponding to the three phases of an overhead line; the pole access assembly comprises a first pole positioning member 1, an insulating protection box 2 and a terminal block 3 for connecting the medium-voltage generator car; the first pole positioning member 1 is arranged on the surface of the insulating protection box 2, the terminal block 3 is located in the insulating protection box 2, and a cable access port corresponding to the terminal block 3 is arranged on the surface of the insulating protection box 2; the conductor splicing assembly is provided with an access end and a splicing end for splicing the overhead line, and a grounding accessory 7 is provided on the access end, specifically a grounding ring; the terminal block 3 is electrically connected to the access end, the access end is electrically connected to the splicing end, and the on-off state of the connection is adjustable.

[0058] like Figure 1 As shown, there are three pole access components, corresponding to the A phase, B phase and C phase of the overhead cable respectively. The insulation protection box 2 is fixed on the pole tower 15 through the first pole positioning member 1, and the cable access port is located at the bottom of the insulation protection box 2; preferably, the shell of the insulation protection box 2 is made of hard and high-strength insulating material, such as epoxy resin fiberglass, and its insulation strength reaches more than 45kV / min. In addition, a rubber pad is arranged around the side of the cable access port facing the terminal 3 to prevent internal collision and improve insulation performance.

[0059] In this embodiment, the conductor bridging assembly includes a knife switch 4, a knife switch upper lead 5, a knife switch lower lead 6, a second pole upper positioning member 8, a third pole upper positioning member 9 and a support insulator 10; one end of the knife switch 4 is electrically connected to the terminal 3 through the knife switch lower lead 6, and the other end of the knife switch 4 is electrically connected to one end of the knife switch upper lead 5, and the other end of the knife switch upper lead 5 is used to bridge the overhead line. The second pole upper positioning member 8 is arranged on the knife switch 4. The knife switch upper lead 5 and the knife switch lower lead 6 are both connected to a support insulator 10, and each support insulator 10 is respectively provided with a third pole upper positioning member 9. In addition, the knife switch lower lead 6 is also provided with a lightning arrester. Among them, the first pole upper positioning member 1, the second pole upper positioning member 8 and the third pole upper positioning member 9 can all adopt fixing accessories such as clamps suitable for cylindrical objects.

[0060] like Figure 2 As shown, the knife switch 4 is fixed on the pole tower 15 through the second pole positioning piece 8, and the supporting insulator 10 is fixed on the pole tower 15 through the third pole positioning piece 9, and the knife switch upper lead 5 and the knife switch lower lead 6 are respectively connected to a supporting insulator 10; thus, the entire wire splicing assembly is fixed on the pole tower 15 and can be activated at any time.

[0061] In this embodiment, a protective cover 12 covering the cable access port is provided on the surface of the insulating protection box 2. The protective cover 12 blocks the cable access port to prevent dust, rainwater, etc. from entering the box body and affecting the insulation performance.

[0062] The terminal block 3 adopts a connection mechanism such as a hanging ring to widen the contact area, reduce contact resistance, and avoid heat generation; at the same time, the terminal block 3 is provided with a flexible wire clamp 13, preferably a bolt-type crimping connection method. In addition, the pole access assembly also includes a cable support frame 14 arranged on the pole, and the cable support frame 14 is opposite to the cable access port. A rubber pad can also be arranged on the support surface of the cable support frame 14, which is not only anti-slip but also does not cause damage to the cable.

[0063] Please refer to Figure 3 , Embodiment 2 of the present invention is:

[0064] A method for using a medium-voltage power generation vehicle quick access supporting device, applied to a medium-voltage power generation vehicle quick access supporting device of embodiment 1, comprises the following steps:

[0065] S1. The construction personnel install the wire splicing assembly and the pole access assembly on the pole tower 15 in advance, and connect the terminal 3 to the access end of the wire splicing assembly;

[0066] In this embodiment, on the pre-selected pole tower 15, the construction team issues two types of distribution tickets to install all accessories of the device including the knife switch 4, the knife switch upper lead 5, the lightning arrester 11, the supporting insulator 10, etc. on the pole and make reliable connections.

[0067] S2. A live working worker connects the connecting end of the conductor connecting assembly to the overhead line while keeping the connecting end and the access end disconnected;

[0068] In this embodiment, the live working team issues a live working ticket to perform splicing on the lead wire 5 of the switch of the wire splicing assembly.

[0069] S3. When performing the connection operation of the medium-voltage power generation vehicle, the connection operator grounds on the grounding accessory 7, and connects the cables of the medium-voltage power generation vehicle to the wiring terminals 3 one by one and phase by phase;

[0070] In this embodiment, the access operator can suspend the cable of the medium voltage generator truck on the cable support frame 14, and after ensuring that the cable bending radius meets the requirements, quickly open the protective cover 12 and connect the cable to the terminal 3; when connecting, access is performed phase by phase from far to near.

[0071] S4. The access operator releases the grounding and leaves the pole tower 15, and restores the electrical connection between the lap end and the access end by operating the operating rod.

[0072] In summary, the present invention provides a medium-voltage generator truck quick access supporting device and a method of using the same. A conductor splicing assembly and a pole access assembly are installed on the pole tower through various pole positioning parts. The conductor splicing assembly is used for pre-splicing, so that the live working process is completed in advance, avoiding the need to perform live working when accessing the medium-voltage generator truck, and reducing the impact of weather, terrain and other factors on the access and use of the medium-voltage truck. When it is necessary to access the medium-voltage generator truck, the cable of the medium-voltage generator truck can be connected and the splicing can be restored while ensuring the safety of personnel. The device has good insulation performance and is easy to operate. The device can be left on the pole tower, which simplifies future work processes and improves the speed of responding to power restoration.

[0073] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A medium voltage generator vehicle quick access supporting device, characterized in that: It includes a conductor splicing assembly and a pole access assembly corresponding to the three phases of the overhead line; The pole access assembly comprises a first pole positioning member, an insulating protection box and a connection terminal for connecting to a medium voltage power generation vehicle; The first rod upper positioning member is arranged on the surface of the insulating protection box, the wiring terminal is located in the insulating protection box, and the surface of the insulating protection box is provided with a cable access port corresponding to the wiring terminal; The conductor splicing assembly is provided with an access end and a splicing end for splicing an overhead line, and the access end is provided with a grounding accessory; The connection terminal is electrically connected to the access end, the access end is electrically connected to the lap end, and the on-off state of the connection is adjustable.

2. A medium voltage generator vehicle quick access supporting device according to claim 1, characterized in that: The wire bonding assembly comprises a knife switch, an upper lead wire of the knife switch and a lower lead wire of the knife switch; One end of the knife switch is electrically connected to the connection terminal through the knife switch lower lead, and the other end of the knife switch is electrically connected to one end of the knife switch upper lead, and the other end of the knife switch upper lead is used to bridge the overhead line.

3. A medium voltage generator vehicle quick access supporting device according to claim 2, characterized in that: The wire connection assembly also includes a second rod positioning member, and the second rod positioning member is arranged on the knife switch.

4. A medium voltage generator vehicle quick access supporting device according to claim 2, characterized in that: The conductor splicing assembly also includes a third pole upper positioning member and a supporting insulator; The upper lead wire of the knife switch and the lower lead wire of the knife switch are both connected to one of the supporting insulators, and each of the supporting insulators is respectively provided with the third rod upper positioning piece.

5. A medium voltage generator vehicle quick access supporting device according to claim 2, characterized in that: The conductor splicing assembly also includes a lightning arrester; The lightning arrester is arranged on the lower lead of the knife switch.

6. A medium voltage generator vehicle quick access supporting device according to claim 1, characterized in that: A protection cover covering the cable access port is provided on the surface of the insulation protection box.

7. A medium voltage generator vehicle quick access supporting device according to claim 1, characterized in that: A rubber pad is arranged around one side of the cable access port facing the wiring terminal.

8. A medium voltage generator vehicle quick access supporting device according to claim 1, characterized in that: A flexible wire clamp is provided on the wiring terminal.

9. A medium voltage generator vehicle quick access supporting device according to claim 1, characterized in that: The pole access assembly further comprises a cable support frame arranged on the pole, wherein the cable support frame is opposite to the cable access port.

10. A method for using a medium-voltage power generation vehicle quick access supporting device, applied to a medium-voltage power generation vehicle quick access supporting device as claimed in any one of claims 1 to 9, characterized in that: The steps include: S1. Pre-install the wire splicing assembly and the pole access assembly on the pole tower, and connect the wiring terminal to the access end of the wire splicing assembly; S2, overlapping the overlapping end of the conductor overlapping assembly with the overhead line, while maintaining the disconnected state between the overlapping end and the access end; S3. When performing the connection operation of the medium-voltage generator car, ground the ground on the grounding accessories, and connect the cables of the medium-voltage generator car to the wiring terminals one by one and one by one; S4. The access operator releases the grounding and leaves the pole tower, and restores the electrical connection between the overlapped end and the access end by operating the operating rod.

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