Insulation isolation device for isolation switch of transformer substation

Abstract

The utility model relates to the technical field of transformer station isolation switches, in particular to an insulation isolation device for a transformer station isolation switch, which comprises a base, the upper end of the base comprises an isolation switch arranged in the middle and an insulation isolation plate arranged on the outer side of the isolation switch, and the isolation switch comprises a switch base arranged on the base. The switch base is provided with a post insulator assembly, the post insulator assembly comprises a first post insulator, a pull rod insulator and a second post insulator, the post insulator assembly is provided with a contact assembly, and the insulation isolation plate comprises a mounting groove formed in the top and a first mounting plate arranged on the base in an attached mode. An acrylic insulation isolation cover plate is embedded in the mounting groove, and the acrylic insulation isolation cover plate comprises a second mounting plate arranged on the outer side and a clamping column arranged on the inner side of the lower end; the utility model has the advantages of convenient wearing, stability and firmness, and is suitable for assisting the safe and effective development of substation field operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of substation disconnecting switch, specifically to the insulating isolation device for substation disconnecting switch. BACKGROUND

[0002] In the stable operation of the power system, the substation disconnecting switch plays a key role, and its safe and reliable operation is crucial for the normal power supply of the entire power network and the safety of equipment and personnel.

[0003] However, the existing substation disconnecting switch technology faces a series of severe challenges in actual application scenarios. The traditional substation disconnecting switch lacks effective insulation protection improvement measures, making it vulnerable to external factors in complex and variable operating environments, such as humid environments, areas with corrosive gases or high dust levels. At the same time, the disconnecting switch lacking good insulation protection may gradually degrade its insulation performance, increasing the risk of electric leakage, threatening the personal safety of operating personnel, and possibly causing serious faults such as phase-to-phase short circuits, affecting the stability of the power system.

[0004] Therefore, to solve the above problems, we propose an insulating isolation device for substation disconnecting switch. INVENTION CONTENTS

[0005] The utility model aims at overcoming the shortcomings of the prior art and providing an insulating isolation device for substation disconnecting switch, which is convenient to wear, stable and firm, and suitable for assisting the safe and effective implementation of substation field operations, to solve the problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an insulating isolation device for substation disconnecting switch, which comprises a base, a disconnecting switch arranged in the middle of the base, and an insulating isolation plate arranged outside the disconnecting switch. The disconnecting switch comprises a switch base arranged on the base, a support insulator assembly arranged on the switch base, the support insulator assembly comprising a first support insulator, a pull rod insulator and a second support insulator, a contact assembly arranged on the support insulator assembly, the insulating isolation plate comprising a mounting groove arranged on the top and a first mounting plate arranged on the base, and an acrylic insulating isolation cover plate arranged in the mounting groove.

[0007] Preferably, the acrylic insulating isolation cover plate comprises a second mounting plate arranged on the outer side and a clamping column arranged on the inner side of the lower end, and the lower end of the second mounting plate is provided with an outer baffle in the insulating isolation plate, and the lower end of the clamping column is provided with an inner baffle in the insulating isolation plate.

[0008] Preferably, a rotating seat is arranged in the middle of the switch base, a rotating shaft is arranged in the rotating seat, a rotating rod is arranged at one end of the rotating shaft outside the switch base, and bearing seats are arranged on the switch base on both sides of the rotating shaft.

[0009] Further, the first and second post insulators are arranged in a linear manner on both sides of the switch base, and the pull rod insulator is arranged in a linear manner on the rotating seat between the first and second post insulators.

[0010] Further, the switch base is provided with a clamping groove corresponding to the outer baffle and the inner baffle.

[0011] Preferably, the contact assembly comprises a movable contact limiting plate arranged on the first post insulator, a pull rod seat arranged on the pull rod insulator, and a static contact plate arranged on the second post insulator.

[0012] Preferably, the movable contact limiting plate is provided with a contact knife, the middle lower end of the contact knife is provided with a connecting piece, and the lower end of the connecting piece is connected with the pull rod seat.

[0013] Further, the static contact plate is provided with a contact block.

[0014] Preferably, the lower side of the end of the contact knife away from the movable contact limiting plate is provided with a contact groove, and the contact groove is connected with the contact block arranged in the middle of the static contact plate.

[0015] Preferably, the base is further provided with a bolt hole.

[0016] Compared with the prior art, the utility model has the advantages that the utility model discloses an insulating isolation device for a disconnecting switch, which comprises a base, an insulating isolation plate is arranged on the base, and a disconnecting switch is arranged on the insulating isolation plate. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure schematic view of the insulating isolation device of the utility model;

[0018] Figure 2 It is a structure schematic view of the insulating isolation device of the utility model;

[0019] Figure 3The utility model discloses a schematic diagram of the isolating baffle structure.

[0020] Figure 4 The utility model discloses a schematic diagram of the isolator structure.

[0021] Figure 5 The utility model discloses a schematic diagram of the post insulator overall structure.

[0022] Figure 6 The utility model discloses a schematic diagram of the post insulator mounting structure.

[0023] Figure 7 The utility model discloses a schematic diagram of the moving contact assembly structure.

[0024] The figure mark explanation: 1, base; 2, isolator; 3, insulating isolation board; 4, acrylic insulating isolation cover plate; 5, installation groove; 6, contact assembly; 7, first installation plate; 8, outer baffle; 9, inner baffle; 10, second installation plate; 11, clamping column; 12, switch base; 13, post insulator assembly; 14, bolt hole; 15, clamping groove; 16, bearing seat; 17, rotating shaft; 18, rotating rod; 19, rotating seat; 20, first post insulator; 21, pull rod insulator; 22, second post insulator; 23, moving contact limit board; 24, pull rod seat; 25, static contact board; 26, contact knife; 27, connecting piece; 28, contact groove; 29, contact block. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the utility model. Embodiment 1

[0026] As Figures 1-4As shown, the embodiment discloses an insulating isolation device for substation disconnecting switch, which comprises a base 1, the upper end of the base 1 comprises a disconnecting switch 2 arranged in the middle and an insulating isolation plate 3 arranged outside the disconnecting switch 2, the disconnecting switch 2 comprises a switch base 12 arranged on the base 1, a support insulator assembly 13 is arranged on the switch base 12, the support insulator assembly 13 comprises a first support insulator 20, a pull rod insulator 21 and a second support insulator 22, a contact assembly 6 is arranged on the support insulator assembly 13, the insulating isolation plate 3 comprises a mounting groove 5 arranged on the top and a first mounting plate 7 arranged on the base 1, the mounting groove 5 is inlaid with an acrylic insulating isolation cover plate 4, the acrylic insulating isolation cover plate 4 comprises a second mounting plate 10 arranged on the outer side and a clamping column 11 arranged on the inner side of the lower end, the lower end of the second mounting plate 10 is correspondingly provided with an outer baffle 8 in the insulating isolation plate 3, and the lower end of the clamping column 11 is correspondingly provided with an inner baffle 9 in the insulating isolation plate 3.

[0027] In the embodiment, bolt holes 14 for mounting and fixing the whole are also symmetrically arranged on the base 1, the insulating isolation plate 3 is bolted on the base 1 through the first mounting plate 7, and the disconnecting switch 2 arranged in the middle of the base 1 is separated by the outer baffle 8 and the inner baffle 9 arranged in the insulating isolation plate 3, so that the personnel can be limited to approach the live part of the disconnecting switch, the safety of personnel and equipment is ensured, and the isolation and protection functions are achieved.

[0028] In the embodiment, the acrylic insulating isolation cover plate 4 is bolted in the mounting groove 5 on the upper end of the insulating isolation plate 3 through the second mounting plate 10 arranged on the lower end, the clamping columns 11 arranged in the acrylic insulating isolation cover plate 4 are correspondingly arranged with the outer baffle 8 and the inner baffle 9 in the insulating isolation plate 3, so that the contact assembly 6 is arranged in the gap between the clamping columns 11 in the acrylic insulating isolation cover plate 4, which can insulate the disconnecting switch 2 without affecting the switch operation, prevent the risk of electric shock caused by falling of foreign matters, make the maintenance personnel safer in the operation process, and reduce the possibility of occurrence of electric shock and other dangers, and the acrylic insulating isolation cover plate 4 is made of acrylic transparent material, which is convenient for observing the opening and closing of the contact assembly 6 on the disconnecting switch 2, and does not affect the insulation and protection functions. Embodiment 2

[0029] As Figures 1-7As shown, the embodiment discloses an insulating isolation device for disconnecting switch of transformer substation, which comprises a base 1, the upper end of the base 1 comprises a disconnecting switch 2 arranged in the middle and an insulating isolation plate 3 arranged outside the disconnecting switch 2, the disconnecting switch 2 comprises a switch base 12 arranged on the base 1, the switch base 12 is provided with a support insulator assembly 13, the support insulator assembly 13 comprises a first support insulator 20, a pull rod insulator 21 and a second support insulator 22, the support insulator assembly 13 is provided with a contact assembly 6, the insulating isolation plate 3 comprises a mounting groove 5 arranged on the top and a first mounting plate 7 arranged on the base 1, the mounting groove 5 is provided with a acrylic insulating isolation cover plate 4 embedded therein.

[0030] In the embodiment, the switch base 12 is provided with a rotating seat 19 in the middle, the rotating shaft 17 is arranged in the rotating seat 19, one end of the rotating shaft 17 is provided with a rotating rod 18 outside the switch base 12, and the rotating shaft 17 is provided with a bearing seat 16 on both sides of the switch base 12; the first support insulator 20 and the second support insulator 22 are arranged in a linear type on both sides of the switch base 12, the pull rod insulator 21 is arranged between the first support insulator 20 and the second support insulator 22 and arranged in a linear type on the rotating seat 19, and the switch base 12 is further provided with a clamping groove 15 corresponding to the outer baffle 8 and the inner baffle 9, which is beneficial to rotating the rotating shaft 17 by the rotating rod 18, rotating the rotating seat 19 and the pull rod insulator 21 arranged on the rotating seat 19 to one side, so as to realize the communication of the first support insulator 20 and the second support insulator 22 through the contact assembly 6.

[0031] In the embodiment, the contact assembly 6 comprises a movable contact limiting plate 23 arranged on the first support insulator 20, a pull rod seat 24 arranged on the pull rod insulator 21 and a static contact plate 25 arranged on the second support insulator 22, the movable contact limiting plate 23 is provided with a contact knife 26, the middle lower end of the contact knife 26 is provided with a connecting piece 27, and the lower end of the connecting piece 27 is connected with the pull rod seat 24; the static contact plate 25 is provided with a contact block 29, the lower side of the end of the contact knife 26 away from the movable contact limiting plate 23 is provided with a contact groove 28, the contact groove 28 is connected with the contact block 29 arranged in the middle of the static contact plate 25, which is beneficial to offsetting the connecting piece 27 connected with the pull rod seat 24 to one side when the pull rod insulator 21 rotates to one side, so that the contact groove 28 arranged on the lower side of the end of the contact assembly 6 away from the movable contact limiting plate 23 is in contact with the contact block 29 arranged in the middle of the static contact plate 25 on the second support insulator 22, so as to realize the closing of the disconnecting switch.

[0032] The basic principle and main features of the present application and the advantages of the present application are shown and described above, and it is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application; therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application, and any reference signs in the claims should not be considered as limiting the claims.

[0033] In addition, it should be understood that, although the present application is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. An insulating isolation device for disconnectors of a substation, comprising a base (1), a disconnector (2) arranged in the middle of the base (1), and an insulating isolation plate (3) arranged outside the disconnector (2), characterized in that: The isolator (2) comprises a switch base (12) arranged on the base (1), a support insulator assembly (13) is arranged on the switch base (12), the support insulator assembly (13) comprises a first support insulator (20), a pull rod insulator (21) and a second support insulator (22), a contact assembly (6) is arranged on the support insulator assembly (13), the insulating isolation plate (3) comprises a mounting groove (5) arranged on the top and a first mounting plate (7) arranged on the base (1), and the mounting groove (5) is arranged with an acrylic insulating isolation cover plate (4) embedded therein.

2. The insulating isolation device for substation disconnectors according to claim 1, characterized in that: The acrylic insulating isolation cover plate (4) comprises a second mounting plate (10) arranged on the outer side and a clamping column (11) arranged on the inner side of the lower end, the second mounting plate (10) is correspondingly provided with an outer baffle (8) in the insulating isolation plate (3), and the clamping column (11) is correspondingly provided with an inner baffle (9) in the insulating isolation plate (3).

3. The substation disconnector insulation displacement device according to claim 2, characterized in that: A rotating seat (19) is arranged in the middle of the switch base (12), a rotating shaft (17) is arranged in the rotating seat (19), one end of the rotating shaft (17) is provided with a rotating rod (18) outside the switch base (12), and bearing seats (16) are arranged on both sides of the rotating shaft (17) on the switch base (12); The first support insulator (20) and the second support insulator (22) are arranged in a linear arrangement on both sides of the switch base (12), and the pull rod insulator (21) is arranged between the first support insulator (20) and the second support insulator (22) and arranged in a linear arrangement on the rotating seat (19); The switch base (12) is further provided with a clamping groove (15) corresponding to the outer baffle (8) and the inner baffle (9).

4. The substation disconnector insulation displacement device according to claim 1, characterized in that: The contact assembly (6) comprises a movable contact limiting plate (23) arranged on the first support insulator (20), a pull rod seat (24) arranged on the pull rod insulator (21) and a static contact plate (25) arranged on the second support insulator (22).

5. The insulating isolation device for substation disconnectors according to claim 4, characterized in that: The movable contact limiting plate (23) is provided with a contact knife (26), the middle lower end of the contact knife (26) is provided with a connecting piece (27), and the lower end of the connecting piece (27) is connected with the pull rod seat (24); The static contact plate (25) is provided with a contact block (29).

6. The insulating isolation device for substation disconnectors according to claim 5, characterized in that: The contact knife (26) is provided with a contact groove (28) on the lower side of the end away from the movable contact limiting plate (23), and the contact groove (28) is clamped with the contact block (29) arranged in the middle of the static contact plate (25).

7. The substation disconnector insulation displacement device according to claim 1, characterized in that: The base (1) is further provided with a bolt hole (14) symmetrically.

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