CN102768918A

CN102768918A - Gas insulation load switch and horizontal beam of gas insulation load switch

Info

Publication number: CN102768918A
Application number: CN2012102610116A
Authority: CN
Inventors: 周振业; 侯峰; 刘桂华; 刘蜀江
Original assignee: GUANGXI YINHE DECOM ELECTRIC CO Ltd
Current assignee: GUANGXI YINHE DECOM ELECTRIC CO Ltd
Priority date: 2012-07-26
Filing date: 2012-07-26
Publication date: 2012-11-07

Abstract

The invention discloses an assembled gas insulation load switch which comprises a frame formed by two end plates and a plurality of horizontal beams for connecting the two end plates, as well as three-phase fixed knife heads (5) and three-phase movable knife bus bars (7) arranged on the horizontal beams, wherein each horizontal beam comprises a beam body made from insulated materials; a weight reducing hole surrounded by beam walls outside the beam body and separation ribs for different beam walls among the beam walls is formed in the beam body; connecting embedded parts (9) are embedded at the two ends of the beam body; three projected ear plates with mounting holes are arranged on at least one side surface of the beam body; each end plate is connected with the connecting embedded parts (9) of each horizontal beam through a connecting piece; and the three-phase fixed knife heads (5) and the three-phase movable knife bus bars (7) are respectively connected onto the ear plates on different horizontal beams. According to the assembled gas insulation load switch, the problems of large frame deformation and poor product uniformity in the existing high-pressure gas insulation load switch can be solved.

Description

Gas-insulated on-load switch and crossbeam thereof

Technical field

The present invention relates to power switchgear manufacturing technology field, especially a kind of is the switchgear of dielectric with gas.

Background technology

Existing gases at high pressure insulation load switch generally has the framework of a welding; The framework of this welding is because welding can cause inevitable distortion, and its size of this distortion of framework and degree are difficult to control, and the installation of switch element and the control of size are impacted; Be difficult to guarantee the homogeneity of product; Therefore, with the switch that this framework is made, it is isolated with conductive parts usually to need to increase insulating part in addition.

Summary of the invention

Problem to be solved by this invention provides a kind of gas-insulated on-load switch and crossbeam thereof, and it is big that it can solve existing gases at high pressure insulation load switch frame deformation, the problem of homogeneity of product difference.

In order to address the above problem; The technical scheme that the present invention adopts is: this insulation load switch; Include the framework that is made up of two end plates and many crossbeams that are connected this two end plates, and be installed in quiet cutter head of three-phase and three-phase moving knife bus-bar on these crossbeams, said crossbeam has the beam body of being processed by insulating material; In this beam body, be provided with by the Liang Bi of the external side of beam and connect the lightening hole that the muscle between the different beam walls surrounds; The two ends of said beam body are embedded with and connect down spare, said beam body at least therein side be provided with three outstanding, have the otic placode of installing hole; Said end plate is to be connected with the down spare that is connected of said crossbeam through connector; The quiet cutter head of said three-phase is connected on the otic placode on the different said crossbeams through bolt with three-phase moving knife bus-bar.

In the above-mentioned technical scheme of stating the gas-insulated on-load switch, can also be more specifically: said connection down spare can be a nut, and at this moment said connector then is a double-screw bolt; On the contrary, said connection down spare can be a stud nut, and at this moment said connector then is a nut.In addition, on the quiet cutter head of each said three-phase, can also all be connected with an arc suppression coil, then all be hinged with a moving knife bar on the said three-phase moving knife bus-bar of each.

Owing to adopted above-mentioned design, the present invention's beneficial effect compared with prior art is:

1, this crossbeam adopts the mould molding manufacturing, and to guarantee each installation dimension, current-carrying part is installed on the crossbeam; And the front and rear panel of current-carrying part and switch bracket is assembled into integral body through bolt; Therefore, can prevent that the switch framework distortion of welding is big, the problem of homogeneity of product difference.

2, the on-load switch front and rear panel is connected in one, has increased the bulk strength of switch.

3, the hole of placing cushion rubber bumper is left in the crossbeam installation place, can solve the problem that cushions after dynamic cutter head closes a floodgate.

Description of drawings

Fig. 1 is the front view of embodiment of the invention middle cross beam.

Fig. 2 is the vertical view of embodiment of the invention middle cross beam.

Fig. 3 is the rearview of embodiment of the invention middle cross beam.

Fig. 4 is the left view of embodiment of the invention middle cross beam.

Fig. 5 is an A-A place cutaway view among Fig. 1.

Fig. 6 is the front view of the embodiment of the invention.

Fig. 7 is the left view after the embodiment of the invention removes the framework header board.

Embodiment

Below in conjunction with the accompanying drawing instance the present invention is made further detailed description:

Fig. 1 is to crossbeam shown in Figure 5; Its beam body is formed by the integrated poured of nylon glass fiber; In this beam body, be provided with by the Liang Bi of the external side of beam and connect the lightening hole that the muscle between the different beam walls surrounds; The two ends of beam body are embedded with the connection down spare 9 (connecting down spare in other embodiments can be double-screw bolt) that is served as by nut, on the beam body at least therein side be provided with three outstanding, have the otic placode of installing hole.

With Fig. 1 gas-insulated on-load switch such as Fig. 6, shown in Figure 7 to crossbeam manufacturing shown in Figure 5; This gas-insulated on-load switch has a framework; This framework by header board 3 and back plate 4 these two end plates with is connected two of this two end plates metal beam formations that are " U " font like Fig. 1 crossbeam 1 extremely shown in Figure 5 and cross section; Wherein header board is to be connected (in other embodiments through double-screw bolt 2 with the back plate with crossbeam 1; When the connection down spare of crossbeam 1 is double-screw bolt, then crossbeam 1 is connected with the back plate with header board) through being connected with this double-screw bolt with nut; Between header board and back plate and the metal beam also is to be connected through double-screw bolt, and this structure can accurately guarantee the consistency of frame size.In that quiet cutter head 5 is installed on the otic placode of entablature 1 with three-phase through bolt on the entablature 1, through bolt three-phase moving knife bus-bar 7 is being installed on the otic placode of sill 1 on the sill 1.All be connected with an arc suppression coil 6 on the quiet cutter head 5 of each three-phase; All be hinged with a moving knife bar 8 on the three-phase moving knife bus-bar 7 of each.Each root moving knife bar 8 is connected with joystick crank on being contained in the ground connection cutter head through an insulated pull bar.Other part is identical with existing gas-insulated on-load switch.

Claims

1. a gas-insulated on-load switch includes the framework that is made up of two end plates and many crossbeams that are connected this two end plates, and is installed in quiet cutter head of three-phase (5) and three-phase moving knife bus-bar (7) on these crossbeams, it is characterized in that:

Said crossbeam has the beam body of being processed by insulating material; In this beam body, be provided with by the Liang Bi of the external side of beam and connect the lightening hole that the muscle between the different beam walls surrounds; The two ends of said beam body are embedded with and connect down spare (9); Said beam body at least therein side be provided with three outstanding, have the otic placode of installing hole;

Said end plate is to be connected with the down spare (9) that is connected of said crossbeam through connector; The quiet cutter head of said three-phase (5) is connected on the otic placode on the different said crossbeams through bolt with three-phase moving knife bus-bar (7).

2. according to the said gas-insulated on-load switch of claim 1, it is characterized in that: said connection down spare (9) is a nut, and said connector is a double-screw bolt.

3. according to the said gas-insulated on-load switch of claim 1, it is characterized in that: said connection down spare (9) is a double-screw bolt, and said connector is a nut.

4. according to claim 1,2 or 3 said gas-insulated on-load switches, it is characterized in that: all be connected with an arc suppression coil (6) on the quiet cutter head of each said three-phase (5); All be hinged with a moving knife bar (8) on the said three-phase moving knife bus-bar (7) of each.

5. crossbeam; It is characterized in that: the beam body of processing by insulating material; In this beam body, be provided with by the Liang Bi of the external side of beam and connect the lightening hole that the muscle between the different beam walls surrounds; The two ends of said beam body are embedded with and connect down spare (9), said beam body at least therein side be provided with three outstanding, have the otic placode of installing hole.

6. crossbeam according to claim 5 is characterized in that: connecting down spare (9) is nut.

7. crossbeam according to claim 5 is characterized in that: connecting down spare (9) is double-screw bolt.