CN214100870U

CN214100870U - Three-phase load unbalance on-load adjusting switch of power system

Info

Publication number: CN214100870U
Application number: CN202023311391.9U
Authority: CN
Inventors: 朱金华; 曲长英
Original assignee: Shandong Institute for Product Quality Inspection
Current assignee: Shandong Institute for Product Quality Inspection
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-08-31
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses an unbalanced three-phase load of electric power system has load adjustment switch, including switch housing and U type cardboard, the side has all been seted up and has been inserted the channel behind the switch housing upper and lower surface, and equal activity is inserted in inserting the channel and is equipped with the picture peg, and the open slot has all been seted up to the lower extreme on the surface of switch housing rear side, and device inslot fixed mounting has compression spring, and the equal fixed mounting in side surface has the slide in the picture peg, and the equal activity of slide is inserted and is located the device inslot that corresponds the position, and compression spring one end all laminates with the slide surface. At first pass through bolt fixed mounting with two sets of U type cardboards in the block terminal, through compression spring's elasticity, the rectangular groove and the curb plate block of U type cardboard of picture peg can accomplish adjustment switch's installation fast, when needs dismantle adjustment switch, only need pull up the picture peg of surface about the adjustment switch, can be very convenient this moment dismantle adjustment switch from U type cardboard.

Description

Three-phase load unbalance on-load adjusting switch of power system

Technical Field

The utility model relates to a power equipment technical field, more specifically say, in particular to unbalanced three-phase load has load adjustment switch of electric power system.

Background

As an overall power supply system, in a three-phase power supply line of the power supply system, load distribution balance among the phase lines is necessary, which not only relates to the problem of phase line current balance of the three-phase power supply line, but also relates to problems in aspects of reducing line loss, economic operation of a power grid, safety and the like.

Because of the unbalance of the three-phase load of the power supply system, the load of a certain phase is larger, and the line loss is increased. Meanwhile, the phase line works under a large load, so that the operation safety of the transformer is influenced, and the power supply capacity of the transformer is reduced.

Therefore, the balanced distribution of the phase line loads in the three-phase power supply line is very critical to the economic and safe operation of the whole power distribution network and the reliability guarantee of the power distribution equipment. Present three-phase regulating switch is generally through a lot of screw direct fixed mounting in the block terminal, and the installation is more loaded down with trivial details, and when needing to dismantle regulating switch, need dismantle a lot of screws on with regulating switch through the instrument and get off, and the time of cost is more.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an unbalanced three-phase load of electric power system has load adjustment switch.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a three-phase unbalanced load on-load adjusting switch of an electric power system comprises a switch shell and a U-shaped clamping plate, wherein the rear ends of the upper surface and the lower surface of the switch shell are respectively provided with an inserting groove channel, inserting plates are movably inserted in the inserting groove channels, the upper end and the lower end of the rear side surface of the switch shell are respectively provided with an open groove, the open grooves are respectively communicated with the inserting grooves of corresponding positions, the size of each inserting groove channel corresponds to the size of one side plate of the U-shaped clamping plate, the inner side surface of each inserting plate is respectively provided with a rectangular groove with the size corresponding to the size of one side plate of the U-shaped clamping plate, the rear side wall of the switch shell is provided with a device groove at the position of the inserting groove, a compression spring is fixedly arranged in the device groove, the inner side surface of each inserting plate is fixedly provided with a sliding plate, the sliding plates are movably inserted in the device grooves of corresponding positions, one end of the compression spring is attached to the surface of the sliding plate, the rectangular groove of each inserting plate is clamped with the U-shaped side plate at the corresponding position through the elastic action of the compression spring, the surface of the other side plate of the U-shaped clamping plate is connected with a bolt through a threaded hole in a matched mode, the inner side surface of the switch shell is fixedly provided with a heat absorbing plate at the position of an open slot, and the surface of the heat absorbing plate is evenly provided with a plurality of groups of through holes.

Preferably, the end positions of the two groups of the inserting plates are fixedly provided with protruding side ribs.

Preferably, two sets of the picture peg is located a curb plate surface in the plug-in groove way and has all seted up the circle opening corresponding to the bolt position, and the size of circle opening is greater than the size of bolt nut.

Compared with the prior art, the utility model has the advantages of:

at first pass through bolt fixed mounting with two sets of U type cardboards in the block terminal, the picture peg of surface about the switch casing is pulled up this moment, make two sets of U type cardboard curb plates insert and establish in the open slot that corresponds the position, then loosen the picture peg, elasticity through compression spring, the rectangular groove of picture peg can with a U type cardboard curb plate block, can accomplish adjustment switch's installation fast, when adjustment switch is dismantled to needs, only need to pull up the picture peg of surface about the adjustment switch, the rectangular groove that makes the picture peg breaks away from U type cardboard, can be very convenient dismantle adjustment switch from U type cardboard this moment, compare directly through screw fixation adjustment switch, the time of its installation dismantlement cost is few, and it is more convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a structural diagram of a three-phase unbalanced load on-load adjustment switch of an electric power system of the present invention;

fig. 2 is a cross-sectional view of the three-phase unbalanced load on-load adjustment switch of the utility model;

in the figure: the heat-absorbing device comprises a switch shell 1, an insertion groove 2, an opening groove 3, a U-shaped clamping plate 4, a protruding side rib 5, an insertion plate 6, a rectangular groove 7, a device groove 8, a sliding plate 9, a compression spring 10, a circular opening 11, a heat-absorbing plate 12 and a through hole 13.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.

Referring to fig. 1 and 2, the utility model provides a three-phase unbalanced load on-load adjustment switch of an electric power system, which comprises a switch casing 1 and a U-shaped clamp plate 4, wherein the rear side ends of the upper and lower surfaces of the switch casing 1 are respectively provided with an insertion groove channel 2, an insertion plate 6 is movably inserted in the insertion groove channel 2, the upper and lower ends of the rear side surface of the switch casing 1 are respectively provided with an open groove 3, the open grooves 3 are respectively communicated with the insertion groove channels 2 at corresponding positions, the size of the insertion groove channel 2 is corresponding to the size of a side plate of the U-shaped clamp plate 4, the inner side surface of the insertion plate 6 is respectively provided with a rectangular groove 7 with the size corresponding to the size of a side plate of the U-shaped clamp plate 4, the rear side wall of the switch casing 1 is provided with a device groove 8 at the position of the insertion groove channel 2, a compression spring 10 is fixedly arranged in the device groove 8, a sliding plate 9 is fixedly arranged on the inner side surface of the insertion plate 6, the sliding plate 9 is movably inserted in the device groove 8 at corresponding position, compression spring 10 one end all with the laminating of slide 9 surface, the rectangular groove 7 of picture peg 6 all through compression spring 10 the elasticity effect with the 4 curb plate blocks of U type cardboard that correspond the position, 4 other curb plate surfaces of U type cardboard all are connected with the bolt through the screw hole cooperation, 1 inboard surface of switch housing has absorber plate 12 at the equal fixed mounting in open slot 3 positions, multiunit through-hole 13 has evenly been seted up on absorber plate 12 surface.

In this embodiment, 6 end positions of two sets of picture pegs all fixed mounting have protrusion lateral rib 5, can make things convenient for the staff to pull up picture peg 6 through protrusion lateral rib 5.

In this embodiment, circle opening 11 has all been seted up corresponding to the bolt position on the curb plate surface that two sets of picture pegs 6 are located slot way 2, and the size of circle opening 11 is greater than the size of bolt nut, sets up circle opening 11 and is for the effect of convenient construction bolt.

The working principle is as follows: at first pass through bolt fixed mounting in the block terminal with two sets of U type cardboard 4, the picture peg 6 with switch casing 1 upper and lower surface is pulled up this moment, make two sets of 4 curb plates of U type cardboard insert and establish in the open slot 3 that corresponds the position, then loosen picture peg 6, elasticity through compression spring 10, rectangular groove 7 of picture peg 6 can with 4 curb plate blocks of U type cardboard, can accomplish adjustment switch's installation fast, absorb the inside heat that produces of adjustment switch through absorber plate 12, then conduct to U type cardboard 4 and the heat exchange takes place for the air, can reduce the inside temperature of adjustment switch, when needs dismantle adjustment switch, only need pull up picture peg 6 with adjustment switch upper and lower surface, make the rectangular groove 7 of picture peg 6 break away from U type cardboard 4, can be very convenient at this moment dismantle adjustment switch from U type cardboard 4.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, various changes and modifications can be made by the owner within the scope of the appended claims, and the protection scope of the present invention should not be exceeded by the claims.

Claims

1. The utility model provides an unbalanced three-phase load of power system has load adjustment switch, includes switch housing (1) and U type cardboard (4), its characterized in that: the switch casing is characterized in that the rear side end of the upper surface and the lower surface of the switch casing (1) is provided with an insertion groove channel (2), the insertion groove channel (2) is internally provided with an insertion plate (6) in an all-movable insertion manner, the upper end and the lower end of the rear side surface of the switch casing (1) are provided with open grooves (3), the open grooves (3) are all communicated with the insertion groove channels (2) corresponding to the positions, the size of the insertion groove channels (2) is mutually corresponding to the size of a side plate of the U-shaped clamping plate (4), the inner side surface of the insertion plate (6) is provided with rectangular grooves (7) of which the size is mutually corresponding to the size of a side plate of the U-shaped clamping plate (4), the rear side wall of the switch casing (1) is provided with a device groove (8) at the position of the insertion groove channel (2), a compression spring (10) is fixedly arranged in the device groove (8), the inner side surface of the insertion plate (6) is fixedly provided with a sliding plate (9), and the sliding plate (9) is movably inserted in the device groove (8) corresponding to the position, compression spring (10) one end all with slide (9) surface laminating, rectangular groove (7) of picture peg (6) all through the spring effect of compression spring (10) and U type cardboard (4) a curb plate block that corresponds the position, U type cardboard (4) opposite side board surface all is connected with the bolt through the screw hole cooperation, switch casing (1) inboard surface has absorber plate (12) at the equal fixed mounting in open slot (3) position, and multiunit through-hole (13) have evenly been seted up on absorber plate (12) surface.

2. The power system three-phase load unbalance on-load adjustment switch according to claim 1, wherein: the end positions of the two groups of the inserting plates (6) are fixedly provided with convex side ribs (5).

3. The power system three-phase load unbalance on-load adjustment switch according to claim 1, wherein: two sets of circle opening (11) have all been seted up corresponding to the bolt position in picture peg (6) are located a side plate surface in picture peg way (2), and the size of circle opening (11) is greater than the size of bolt nut.