CN113991663B - Movable phase-changing device and vehicle-mounted mobile substation - Google Patents

Abstract

The invention discloses a mobile phase commutation device, comprising: a bus barrel; an input conductive part, the input conductive part is located in the bus barrel, and the input conductive part can be electrically connected with the input bushing; the output conductive part, the output The conductive part at the end is located in the bus barrel, and the conductive part at the output end can be electrically connected with the bushing at the output end; the commutation corner device, the input end of the commutation corner device is connected to the input terminal conductive part, and the output end of the commutation corner device is connected to the output end The conductive parts are connected, and the phase change angle device is used for phase change. The mobile phase commutation device in the present invention can be prepared in advance, and after being transported to the site, the device is placed on the vehicle board, and then connected directly for use. The mobile phase change device in the invention can significantly increase the input speed of the vehicle-mounted mobile substation, simplify the phase change operation steps, and avoid damage to the ground on site. The invention also discloses a vehicle-mounted mobile substation.

Description

A mobile phase commutation device and a vehicle-mounted mobile substation

technical field

The invention relates to the field of vehicle-mounted mobile transformers, and more specifically, relates to a mobile phase commutation device and a vehicle-mounted mobile substation.

Background technique

Vehicle-mounted mobile substations can replace power stations to supply power to loads in power emergencies or power station maintenance, so they are increasingly used. In practical applications, there is a problem that the phase sequence of the transformer is inconsistent with the phase sequence of the high-voltage line in the vehicle-mounted mobile substation, so phase commutation is required. In the prior art, those skilled in the art usually implement phase commutation by setting insulating pillars or erecting gantry frames. However, this method has the disadvantages of long construction time and complicated operation. And when setting insulating pillars or erecting gantry frames, it is necessary to make a fixed foundation on the ground, so the degree of damage to the ground is relatively large. In addition, the insulating pillars set up or the gantry erected can only be used once and cannot be reused.

Therefore, how to reduce the working time of phase change, simplify the operation steps of phase change, avoid damage to the ground, and improve the utilization rate of phase change equipment are key problems to be solved urgently by those skilled in the art.

Contents of the invention

The purpose of the invention is to reduce the working time of phase change, simplify the operation steps of phase change, avoid damage to the ground, and improve the utilization rate of phase change equipment. To achieve the above object, the present invention provides the following technical solutions:

A mobile phase change device, comprising:

Bus barrel;

an input-end conductive part, the input-end conductive part is located in the bus barrel, and the input-end conductive part can be electrically connected to the input-end bushing;

an output-end conductive part, the output-end conductive part is located in the bus barrel, and the output-end conductive part can be electrically connected to the output-end bushing;

The phase change angle device, the input end of the phase change angle device is connected to the input terminal conductive part, the output end of the phase change angle device is connected to the output end conductive part, and the phase change angle device is used to change phase.

Preferably, there are multiple sleeves at the input end, and there are correspondingly multiple conductive members at the input end;

The input-end conductive part includes an input-end vertical conductive part and an input-end horizontal conductive part, the top of the input-end vertical conductive part is connected to the corresponding input-end bushing, and one end of the input-end horizontal conductive part It is connected to the bottom end of the vertical conductive member at the input end, and the other end of the horizontal conductive member at the input end is connected to the input end of the commutation corner device.

Preferably, there are multiple sleeves at the output end, and there are correspondingly multiple conductive members at the output end;

The output-end conductive parts include output-end vertical conductive parts and output-end horizontal conductive parts. The bottom end of the vertical conductive member at the output end, the other end of the horizontal conductive member at the output end is connected to the output end of the commutation corner device.

Preferably, the phase commutation corner device includes: a first phase commutation corner piece, a second phase commutation corner piece, and an intermediate connecting piece;

The input end of the first commutation corner piece is connected to the output end of the horizontal conductive piece at the input end, the output end of the first commutation corner piece is connected to the input end of the intermediate connector, and the intermediate connection The output end of the piece is connected to the input end of the second commutation corner piece, the output end of the second commutation corner piece is connected to the input end of the horizontal conductive piece at the output end, and the first commutation corner piece It is used for the first commutation, and the second commutation corner piece is used for re-commutation.

Preferably, the bus barrel is filled with sulfur hexafluoride insulating gas.

Preferably, an insulating basin is also included, and the insulating basin isolates the inner cavity of the busbar barrel into airtight rooms not communicating with each other.

Preferably, a conductor is provided on the insulating basin, one end of the conductor is connected to the intermediate connector, and the other end is connected to the first commutation corner piece or the second commutation corner piece.

Preferably, the intermediate connector is connected to the conductor through a first socket, and the first commutation corner piece or the second commutation corner piece is connected to the conductor through a second socket .

Preferably, a support leg is provided at the bottom of the busbar barrel, and the support leg is connected to the vehicle panel by bolts.

Preferably, the two ends of the bus barrel are respectively provided with an input-end bushing seat and an output-end bushing seat, the input-end bushing is installed on the input-end bushing seat, and the output-end bushing is installed on On the socket of the output end.

The present invention also provides a vehicle-mounted substation, including the mobile phase commutation device described in any one of the above.

It can be seen from the above technical solutions that the mobile phase commutation device in the present invention can be prepared in advance, placed on the vehicle board after being transported to the site, and then directly wired for use. Compared with the way in which insulating brackets or gantry erections are required on site in the prior art, the mobile phase change device in the present invention can significantly increase the input speed of the vehicle-mounted mobile substation, simplify the phase change operation steps, and avoid the need for on-site ground cause havoc. In addition, the mobile phase changing device in the present invention can be reused, which improves the utilization rate and reduces the cost.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a front view of a mobile phase change device provided by a specific embodiment of the present invention;

Fig. 2 is a top view of a mobile phase commutation device provided by a specific embodiment of the present invention;

Fig. 3 is a top view of a vehicle-mounted mobile substation provided by a specific embodiment of the present invention.

Among them, 1 is the bus barrel, 2 is the horizontal conductive part of the input end, 3 is the vertical conductive part of the input end, 4 is the horizontal conductive part of the output end, 5 is the vertical conductive part of the output end, 6 is the bushing of the input end, and 7 is The output end bushing, 8 is a car plate, and 9 is an insulating basin.

Detailed ways

The invention discloses a mobile phase change device, which can reduce the working time of phase change, simplify the operation steps of phase change, avoid damage to the ground, and improve the utilization rate of phase change equipment. The invention also discloses a vehicle-mounted mobile substation.

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The invention discloses a mobile phase change device, which comprises: a bus bar barrel 1, an input end conductive part, an output end conductive part and a phase change corner device. Wherein, the bus barrel 1 is placed on the vehicle board 8 of the vehicle-mounted mobile substation. The input conductive part is located in the bus barrel 1 , and the input conductive part can be electrically connected with the input sleeve 6 . The output conductive part is located in the bus barrel 1 , and the output conductive part can be electrically connected with the output sleeve 7 . The input end of the commutation corner device is connected to the conductive part at the input end, and the output end of the commutation corner device is connected to the conductive part at the output end. The function of the commutation angle device is to change the phase, so that the bushing 7 at the output end outputs a voltage with a different phase sequence from that of the bushing 7 at the output end.

The mobile phase commutation device in the present invention can be prepared in advance, and the device is placed on the vehicle board 8 after being transported to the site, and then directly connected for use. Compared with the way in which insulating brackets or gantry erections are required on site in the prior art, the mobile phase change device in the present invention can significantly increase the input speed of the vehicle-mounted mobile substation, simplify the phase change operation steps, and avoid the need for on-site ground cause havoc. In addition, the mobile phase changing device in the present invention can be reused, which improves the utilization rate and reduces the cost.

In a specific embodiment of the present invention, there are multiple input-end bushings 6 , and there are correspondingly multiple input-end conductive parts. Each input-end conductive element includes an input-end vertical conductive element 3 and an input-end horizontal conductive element 2 . The top end of the vertical conductive member 3 at the input end is connected to the corresponding input end bushing 6 . One end of the horizontal conductive member 2 at the input end is connected to the bottom end of the vertical conductive member 3 at the input end, and the other end of the horizontal conductive member 2 at the input end is connected to the input end of the commutation angle device. The vertical conductive member 3 at the input end and the horizontal conductive member 2 at the input end are distributed at right angles. All the conductive parts at the input ends are parallel to each other and have a preset insulation distance between them.

If the supplied voltage is a three-phase voltage, the input bushing 6 consists of three. Correspondingly, there are three vertical conductive members 3 at the input end and three horizontal conductive members 2 at the input end. Each input vertical conductive member 3 is connected to the corresponding input sleeve 6 . Each input horizontal conductive member 2 is connected to the corresponding input vertical conductive member 3 .

There are multiple output sleeves 7, and correspondingly multiple output conductive parts. Each output-end conductive element includes an output-end vertical conductive element 5 and an output-end horizontal conductive element 4 . The top end of the vertical conductive member 5 at the output end is connected to the corresponding output end bushing 7 . One end of the horizontal conductive member 4 at the output end is connected to the bottom of the vertical conductive member 5 at the output end. The other end of the horizontal conductive member 4 at the output end is connected to the output end of the commutation corner device. The vertical conductive member 5 at the output end and the horizontal conductive member 4 at the output end are distributed at right angles. All the conductive parts at the output ends are parallel to each other and have a preset insulation distance between them.

If the voltage to be delivered is a three-phase voltage, then the output bushing 7 includes three, and correspondingly, there are three vertical conductive members 5 at the output end and three horizontal conductive members 4 at the output end. Each output-end vertical conductive member 5 is connected to a corresponding output-end bushing 7 . Each output-end horizontal conductive member 4 is connected to the corresponding output-end vertical conductive member 5 .

Next, the phase-commutation corner device will be introduced. The phase-commutation corner device specifically includes: a first phase-commutation corner piece, a second phase-commutation corner piece, and an intermediate connecting piece. The input end of the first commutation corner piece is connected to the output end of the horizontal conductive member 2 at the input end, the output end of the first commutation corner piece is connected to the input end of the intermediate connector, and the output end of the intermediate connector is connected to the second commutation The input end of the corner piece is connected, the output end of the second commutation corner piece is connected to the input end of the output horizontal conductive member 4, the first phase change corner piece is used for the first phase change, and the second phase change corner piece is used for re-commutation Mutually.

Please refer to the accompanying drawing 1, in the drawing 1, the phase sequence of the horizontal conductive part 2 at the input end is ABC, the first commutation corner part rotates the three phases of ABC by 60°, and then the second commutation corner part makes the phase sequence rotate again 60°, then after the commutation of the second commutation corner piece, the phase sequence becomes CBA. The phase sequence of the bushing 6 at the input end is ABC, and the phase sequence of the bushing 7 at the output end is CBA.

In the present invention, the busbar barrel 1 is filled with sulfur hexafluoride insulating gas. In this way, a small space distance between adjacent conductive elements can ensure mutual insulation. In this way, the structure of the entire mobile commutation device can be made more compact, the occupied space is reduced, and the use is more flexible.

In the present invention, an insulating basin 9 is also provided in the busbar barrel 1, and the function of the insulating basin 9 is to isolate the inner cavity of the busbar barrel 1 into airtight chambers that are not communicated with each other. In this way, when one of the airtight chambers leaks, the airtightness of the other airtight chambers will not be affected.

A conductor is also arranged on the insulating basin 9, one end of the conductor is connected to the intermediate connector, and the other end is connected to the first commutation corner piece. In this way, the insulating basin 9 not only plays the role of isolating the airtight chamber, but also forms a supporting role for the intermediate connecting piece and the first commutation corner piece. In the present invention, two insulating basins 9 are arranged in the bus barrel 1 . One of the insulating basins 9 is used to support the intermediate connecting piece and the first commutation corner piece, and the other insulating basin 9 is used to support the intermediate connecting piece and the second commutation corner piece.

In the present invention, the intermediate connector is connected to the conductor through the first plug connector. The first plug is fixedly connected to the conductor and is located at one end of the conductor. The end of the intermediate connecting piece can be inserted and interference-fitted into the inner chamber of the first plug-in piece. In the same way, the first commutation corner piece or the second commutation corner piece is connected to the conductor through the second plug connector. The second plug connector is fixedly connected to the other end of the conductor. The first commutation corner piece or the second commutation corner piece is inserted, and is interference-fitted into the inner cavity of the second plug connector.

It should be noted that the connection between the first commutation corner piece and the horizontal conductive piece 2 at the input end is through the third plug connector, and the connection between the second commutation corner piece and the horizontal conductive piece 4 at the output end is through the fourth plug connector .

The bottom of the busbar barrel 1 in the present invention is provided with supporting legs, and the supporting legs are connected to the car plate 8 by bolts. The bolted connection can not only ensure the firmness of the connection, but also facilitate disassembly, thereby facilitating the movement or reuse of the busbar barrel 1 .

The two ends of the bus barrel 1 are respectively provided with 6 input-end bushings and 7 output-end bushings. An input end flange is arranged on the 6 seats of the input end sleeve, and the input end sleeve 6 is connected to the 6 input end sleeves through the input end flange. The output end casing 7 is provided with an output end flange, and the output end casing 7 is connected to the output end casing 7 through the output end flange.

The invention also discloses a vehicle-mounted substation, which includes a mobile phase change device, and the mobile phase change device is any one of the above mobile phase change devices. The above-mentioned mobile phase commutation device has the above-mentioned effects, and the vehicle-mounted substation with the above-mentioned mobile phase commutation device also has the above-mentioned effects, so this paper will not repeat them here.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. A mobile commutation apparatus, comprising:

a bus bar drum;

the input end conductive piece is positioned in the bus tube and can be electrically connected with the input end sleeve;

the output end conductive piece is positioned in the bus tube and can be electrically connected with an output end sleeve;

the input end of the phase change corner device is connected with the input end conductive piece, the output end of the phase change corner device is connected with the output end conductive piece, and the phase change corner device is used for changing phases;

the number of the input end sleeves is multiple, and the number of the input end conductive pieces is correspondingly multiple;

the input end conductive piece comprises an input end vertical conductive piece and an input end horizontal conductive piece, the top end of the input end vertical conductive piece is connected with the corresponding input end sleeve, one end of the input end horizontal conductive piece is connected to the bottom end of the input end vertical conductive piece, and the other end of the input end horizontal conductive piece is connected with the input end of the commutation angle device;

the number of the output end sleeves is multiple, and the number of the output end conductive pieces is correspondingly multiple;

the output end conductive piece comprises an output end vertical conductive piece and an output end horizontal conductive piece, the top end of the output end vertical conductive piece is connected with the corresponding output end sleeve, one end of the output end horizontal conductive piece is connected to the bottom end of the output end vertical conductive piece, and the other end of the output end horizontal conductive piece is connected with the output end of the phase change corner device;

the commutation angle device comprises: the phase-change corner comprises a first phase-change corner piece, a second phase-change corner piece and an intermediate connecting piece;

the input of first commutation corner fitting with the output of the electrically conductive piece of input level is connected, the output of first commutation corner fitting with the input of intermediate junction spare is connected, the output of intermediate junction spare with the input of second commutation corner fitting is connected, the output of second commutation corner fitting with the input of the electrically conductive piece of output level is connected, first commutation corner fitting is used for the commutation for the first time, second commutation corner fitting is used for the commutation again.

2. The mobile commutation device of claim 1, wherein the bus bar cylinder is filled with sulfur hexafluoride insulating gas.

3. The mobile phase commutation device of claim 2, further comprising an insulation basin that isolates the interior cavity of the bus bar barrel from being sealed to each other.

4. The mobile phase-changing device according to claim 3, wherein an electrical conductor is provided on the insulation basin, one end of the electrical conductor is connected to the intermediate connector, and the other end of the electrical conductor is connected to the first phase-changing corner piece or the second phase-changing corner piece.

5. The mobile commutation apparatus of claim 4, wherein the intermediate connector is connected to the conductor by a first connector, and wherein the first commutation angle element or the second commutation angle element is connected to the conductor by a second connector.

6. The mobile phase commutation device of claim 1, wherein the bottom of the bus bar barrel is provided with support legs that are bolted to the deck.

7. The mobile commutation apparatus of claim 1, wherein the bus bar has an input bushing block and an output bushing block disposed at opposite ends of the bus bar, the input bushing being mounted on the input bushing block and the output bushing being mounted on the output bushing block.

8. A vehicle-mounted substation, characterized in that it comprises a mobile commutation device according to any one of claims 1 to 7.

Images