WO2022252539A1

WO2022252539A1 - Active load regulation resistor

Info

Publication number: WO2022252539A1
Application number: PCT/CN2021/136134
Authority: WO
Inventors: 谢庆坚; 巫昌松; 廖汉卿; 黄福梁
Original assignee: 广东福德电子有限公司; 株洲福德轨道交通研究院有限公司
Priority date: 2021-06-04
Filing date: 2021-12-07
Publication date: 2022-12-08
Also published as: CN215731130U

Abstract

The present utility model relates to the technical field of resistors, and relates in particular to an active load regulation resistor, which comprises a plurality of arranged resistor towers, the number of rows thereof being more than two rows. A plurality of sets of bridge assemblies are disposed between two adjacent rows of resistor towers. Each set of bridge assemblies comprises an uprightly arranged column, a cross beam that is fixed to the column, and a first insulator that is erect on the cross beam. A top portion of the first insulator is provided with a conductive seat. The bridge assembly further comprises a tube bus, and the conductive seats of each set of bridge assemblies are electrically connected by means of the tube bus. Lead-out terminals of different resistor towers are electrically connected to one another and then electrically connected to the conductive seats of the bridge assemblies. In comparison with the existing technology, the overall layout is reasonable and resistor boxes stacked in the resistor towers occupy a relatively small area; in addition, by connecting to the conductive seats of the bridge assemblies by means of the lead-out terminals, when a particular resistor tower fails, maintenance can be carried out by disconnecting the current of a corresponding lead-out terminal, and therefore the maintenance operation is convenient and suitable for an electronic load power balance system of a regional power grid.

Description

A kind of active load regulating resistor

technical field

The invention relates to the technical field of resistors, in particular to an active load regulating resistor, which is suitable for an electronic load power balance system of a regional power grid.

Background technique

The generator sets on the power grid are all running in parallel, and then the power is delivered to the user by the transmission, transformation and distribution equipment. As the demand for electric energy increases, more and more units are connected to the grid, making the scale of the grid larger and larger. The large power grid has the advantages of reliable power supply, stable frequency and voltage. The existing resistors used in the electronic load power balancing system of the regional power grid have unreasonable layout, large floor space and inconvenient maintenance.

technical problem

The existing resistors used in the electronic load power balancing system of the regional power grid have unreasonable layout, large floor space and inconvenient maintenance.

technical solution

In view of the above-mentioned technical problems in the prior art, the invention provides an active load regulating resistor with reasonable layout and easy maintenance.

To achieve the above object, the present invention provides the following technical solutions:

An active load regulating resistor is provided, which includes a plurality of resistance towers arranged in more than two rows, multiple groups of bridging components are arranged between two adjacent rows of resistance towers, and each group of bridging components includes upright columns 1. The beam fixed on the column and the first insulator standing on the beam, the top of the first insulator is provided with a conductive seat; the bridge assembly also includes a pipe mother, and the conductive seats of each group of bridge assemblies are electrically connected through the pipe mother;

Each resistance tower includes a plurality of stacked resistance boxes, and each resistance box includes a box body and a resistance module located in the box body, and the resistance module includes a side plate, a plurality of parallel resistance sheets electrically connected to each other, and a plurality of resistance sheets The string rods are connected in series, and the string rods are connected with a plurality of insulating seats for separating two adjacent resistance sheets. The two ends of the string rods are respectively fixed on different side plates. The board is fixed on the second insulator, so as to set up the resistance module; the resistance module also includes a lead-out terminal, one end of which is electrically connected to the resistor sheet, and the other end is passed out of the box; the lead-out terminals of different resistance boxes are electrically connected to each other and then It is electrically connected to the conductive seat of the bridging component; the bottom of the box is provided with a third insulator, and the boxes of the upper and lower adjacent resistance towers are separated by the third insulator.

Preferably, the two ends of each resistor sheet are respectively provided with series parts bent in opposite directions, and two adjacent resistor sheets are connected in series by overlapping the series parts; and/or the two ends of each resistor sheet are provided with supply The hook part through which the skewer passes.

Preferably, heat dissipation louvers are provided on the side of the box.

Preferably, a door is provided on the side of the box.

Preferably, the box body includes a top plate, and the top plate includes an upwardly arched portion and a horizontal supporting portion, and the supporting portion upwardly supports the third insulator of the upper resistance box.

Preferably, the lead-out terminal is covered with a fourth insulator.

Preferably, each resistance tower includes three resistance boxes.

Preferably, each resistance box is provided with a plurality of resistance modules, and the plurality of resistance modules are electrically connected to each other.

Preferably, multiple resistance towers are arranged in two rows, and the resistance towers in each row are aligned one by one.

Preferably, the beam is perpendicular to the column, and a reinforcing rib is arranged between the beam and the column.

Beneficial effect

Compared with the prior art, the active load regulating resistors created by the present invention are arranged in a way of being electrically connected through bridge components, the overall layout is reasonable, and the resistance boxes stacked by the resistance towers have a relatively small footprint, and through The lead-out terminal is connected to the conductive seat of the bridge component. When a certain resistance tower fails, it can be maintained by disconnecting the current of the corresponding lead-out terminal. Therefore, the maintenance operation is convenient, and it is suitable for the electronic load power balance system of the regional power grid.

Description of drawings

Fig. 1 is a front view of an active load adjusting resistor in the embodiment.

Fig. 2 is a top layout diagram of the active load regulating resistor in the embodiment.

Fig. 3 is a side view of the active load adjusting resistor in the embodiment.

Fig. 4 is a perspective view of a single resistance tower of the active load regulating resistor in the embodiment, which hides the partial board of the lower resistance box.

FIG. 5 is an enlarged view at point A in FIG. 4 .

FIG. 6 is a perspective view of a resistor plate of an active load adjusting resistor in an embodiment.

Reference signs:

resistance tower 1;

Resistance box 2, box body 21, heat dissipation louver 22, door body 23, top plate 24, arched part 25, supporting part 26;

Resistance module 3, side plate 31, resistance sheet 32, series part 321, hook part 322, string bar 33, insulating seat 34, second insulator 35, lead-out terminal 36, third insulator 37, fourth insulator 38;

Bridge assembly 4, column 41, beam 42, first insulator 43, reinforcing rib 44, conductive seat 45;

tube mother 5.

Embodiments of the present invention

The invention will be described in detail below in conjunction with specific embodiments and accompanying drawings.

The active load regulating resistor of this embodiment, as shown in Figures 1 to 5, includes a plurality of resistance towers 1. From a top view, the plurality of resistance towers 1 are arranged in two horizontal rows and nine vertical columns. Between the resistance towers 1 are arranged a plurality of sets of bridging assemblies 4 arranged in a line, and each set of bridging assemblies 4 includes vertically arranged columns 41, beams 42 fixed to the columns 41 and first insulators 43 standing on the beams 42, and the beams 42 Vertical to the column 41, a reinforcing rib 44 is provided between the beam 42 and the column 41, a conductive seat 45 is provided on the top of the first insulator 43, and the bridge assembly 4 also includes a tube mother 5, and the conductive seat 45 of each group of bridge assemblies 4 passes through Tube mother 5 is electrically connected.

Each resistance tower 1 includes three stacked resistance boxes 2, each resistance box 2 includes a box body 21 and four resistance modules 3 that are electrically connected to each other in the box body 21, and each resistance module 3 includes two parallel Side plate 31, a plurality of resistor slices 32 connected in series side by side, and a string bar 33 connected in series with multiple resistor slices 32, string bar 33 has a plurality of insulating seats 34 for making correspondence between adjacent resistor slices 32 The positions are separated, and the two ends of the string rod 33 are respectively fixed to different side plates 31 . A second insulator 35 is erected inside the box body 21 , and the side plate 31 is fixed on the second insulator 35 to erect the resistance module 3 . The resistance module 3 also includes a lead terminal 36 , the four resistance modules 3 in the same resistance box 2 are electrically connected to one end of the lead terminal 36 , and the other end of the lead terminal 36 passes out of the box body 21 . The lead-out terminals 36 of different resistance boxes 2 are electrically connected to each other through another pipe nut 5 and then electrically connected to the conductive seat 45 of the bridging assembly 4 . A third insulator 37 is provided at the bottom of the box body 21 , and the box bodies 21 of two adjacent resistance towers 1 up and down are separated by the third insulator 37 .

Compared with the prior art, the way of arrangement and electrical connection between bridge components 4 has a reasonable overall layout, and the resistance boxes 2 stacked by the resistance towers 1 have a relatively small footprint, and are connected to the bridge components 4 through the lead-out terminal 36. When a certain resistance tower 1 fails, it can be maintained by disconnecting the current of the corresponding lead-out terminal 36, so the maintenance operation is convenient, and it is suitable for the electronic load power balance system of the regional power grid.

In this embodiment, as shown in FIG. 6 , the two ends of each resistance sheet 32 are respectively provided with series parts 321 bent in opposite directions, and two adjacent resistance sheets 32 are connected in series by overlapping the series parts 321 . Both ends of each resistance sheet 32 are provided with Ω-shaped hook-shaped portions 322 through which the string rods 33 pass.

In this embodiment, the side of the box body 21 is provided with a heat dissipation louver 22, which is convenient for the heat generated by the resistance module 3 to dissipate. The side of the box body 21 is provided with a door body 23, and the internal components can be detected by opening the door body 23 maintain.

In this embodiment, the box body 21 includes a top plate 24, and the top plate 24 includes an upward arched portion 25 and a horizontal support portion 26, and the support portion 26 supports the third insulator of the resistance box 2 on the upper layer upward. 37.

In this embodiment, the lead-out terminal 36 is covered with a fourth insulator 38 , which increases the creepage distance between the connection point between the lead-out terminal 36 and the pipe nut 5 and the side wall of the box body 21 .

Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present invention, rather than to limit the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art Personnel should understand that the technical solution of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solution of the present invention.

Claims

An active load regulating resistor, characterized in that it includes a plurality of resistance towers arranged in more than two rows, multiple groups of bridging components are arranged between two adjacent rows of resistance towers, and each group of bridging components includes vertical The arranged column, the beam fixed to the column and the first insulator standing on the beam, the top of the first insulator is provided with a conductive seat; the bridge assembly also includes a pipe mother, and the conductive seats of each group of bridge assemblies are electrically connected through the pipe mother;

Each resistance tower includes a plurality of stacked resistance boxes, and each resistance box includes a box body and a resistance module located in the box body, and the resistance module includes a side plate, a plurality of parallel resistance sheets electrically connected to each other, and a plurality of resistance sheets The string rods are connected in series, and the string rods are connected with a plurality of insulating seats for separating two adjacent resistance sheets. The two ends of the string rods are respectively fixed on different side plates. The board is fixed on the second insulator, so as to set up the resistance module; the resistance module also includes a lead-out terminal, one end of which is electrically connected to the resistor sheet, and the other end is passed out of the box; the lead-out terminals of different resistance boxes are electrically connected to each other and then It is electrically connected to the conductive seat of the bridging component; the bottom of the box is provided with a third insulator, and the boxes of the upper and lower adjacent resistance towers are separated by the third insulator.
An active load regulating resistor according to claim 1, wherein the two ends of each resistor sheet are respectively provided with series parts bent in opposite directions, and two adjacent resistor sheets are connected by overlapping the series parts. realize series connection; and/or the two ends of each resistor sheet are provided with hook-shaped parts for string rods to pass through.
An active load regulating resistor according to claim 1, characterized in that: the side of the box is provided with louvers for heat dissipation.
An active load regulating resistor according to claim 1 or 3, characterized in that: the side of the box is provided with a door.
An active load regulating resistor according to claim 1, characterized in that: the box body includes a top plate, the top plate includes an upward arched portion and a horizontal supporting portion, and the supporting portion supports the upper one upwards. The third insulator of the layer resistance box.
An active load regulating resistor according to claim 1, characterized in that: the lead-out terminal is covered with a fourth insulator.
An active load regulating resistor according to claim 1, characterized in that: each resistance tower includes three resistance boxes.
The active load regulating resistor according to claim 1, characterized in that: each resistance box is provided with a plurality of resistance modules, and the plurality of resistance modules are electrically connected to each other.
An active load regulating resistor according to claim 1, characterized in that: a plurality of resistance towers are arranged in two rows, and the resistance towers in each row are aligned one by one.
The active load regulating resistor according to claim 1, characterized in that: the beam is perpendicular to the column, and a reinforcing rib is arranged between the beam and the column.