Voltage transformer handcart structure

Abstract

The utility model belongs to a voltage transformer handcart structure in the technical field of high-voltage switch cabinets. The upper frame (2) is installed on the upper portion of the chassis frame (1) and comprises a horizontal frame (12) and a vertical frame (13), the voltage transformer (4) and the lightning arrester (9) are installed on the horizontal frame (12), the conjoined insulator (7) is installed on the vertical frame (13), one end of the contact arm (6) is installed on the conjoined insulator (7), the tulip contact (5) is installed at the other end of the contact arm (6), one end of the fusible core (4) is connected with the contact arm (6), and the other end of the fusible core (4) is connected with the tulip contact (5). The other end of the fusible core (4) is installed on the voltage transformer (3), the bottom of the lightning arrester (9) is installed on the horizontal frame (12), and the head of the lightning arrester (9) is connected with the contact arm (6). The handcart structure of the voltage transformer is simple in structure, low in cost, short in processing period, convenient to assemble and maintain, high in structural strength, high in insulating property and easy to popularize, and the overall performance is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to high voltage switch cabinet technical field, more specifically, it relates to a voltage transformer handcart structure. BACKGROUND

[0002] For high voltage movable type AC metal-enclosed switch cabinet, the switch cabinet body is usually composed of breaker chamber, bus chamber, cable chamber and control chamber four parts, when the primary main circuit scheme adopts isolation incoming line with incoming line arrester scheme, the incoming line arrester is usually installed in the cable chamber.But, the incoming line arrester installed in the cable chamber has the following disadvantages: first, because the incoming line arrester is installed in the cable chamber behind the switch cabinet, on the one hand, it occupies the installation space of the connecting copper bar in the cable chamber, wastes resources and increases the manufacturing cost, on the other hand, it causes the cable chamber space to be small, which causes trouble to the on-site maintenance and repair.In addition, when the switch cabinet is in service, the power supply department needs to install monitoring devices such as monitoring counter in the cable chamber, which further leads to the decrease of the installation space of the cable chamber;Second, when the arrester is damaged due to overvoltage and other factors, there is a certain safety hazard when the maintenance personnel enters the cable chamber to replace it.

[0003] In the prior art, there is a technology with the name of "compact voltage transformer handcart", the publication number is "CN205646599U", which belongs to the technical field of electrical equipment, including chassis car, frame, voltage transformer, fuse, touch wall, secondary wiring terminal, cover plate and maintenance square hole.In the utility model, the voltage transformer and the fuse are arranged parallel to the chassis car, which effectively reduces the height of the handcart, saves the effective space of the switch cabinet, and saves labor and effort when installing.The frame panel is provided with a larger maintenance square hole, in the installation site, the handcart is in the test position and the working position, the cover plate covering the maintenance square hole is opened, and the secondary wiring terminal of the voltage transformer can be conveniently maintained through the maintenance square hole without completely withdrawing the handcart, which is convenient for on-site installation and maintenance of the secondary wiring terminal, saves manpower and material resources, and is safe and reliable.

[0004] However, the technology does not involve the technical problems and technical solutions of the present application. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problems that: in view of the deficiencies of the prior art, provide a voltage transformer handcart structure with simple structure, low cost, short processing period, convenient assembly and maintenance, high structural strength, high insulation performance, improve overall performance, easy to promote characteristics.

[0006] To solve the above technical problems, the utility model adopts the technical scheme that:

[0007] The utility model discloses a voltage transformer handcart structure, and upper frame is installed on the bottom disc car frame upper portion, and the upper frame includes horizontal frame and vertical frame, and voltage transformer and lightning arrester are installed on the horizontal frame, and connected body insulator is installed on the vertical frame, and the one end of contact arm is installed on the connected body insulator, and the other end of contact arm installs plum blossom contact, and the one end of fuse core is connected with contact arm, and the other end of fuse core is installed on voltage transformer, and the bottom of lightning arrester is installed on the horizontal frame, and the head of lightning arrester is connected with contact arm.

[0008] The bottom disc car frame is provided with a propelling mechanism, and the lower part of the bottom disc car frame is provided with a rolling wheel.

[0009] The vertical frame of the upper frame is welded with an upper cross beam, and the connected body insulator is installed on the upper cross beam.

[0010] The one end of the fuse core is connected with the contact arm through a fuse core upper connecting piece, and the other end of the fuse core is connected with the voltage transformer through a fuse core lower connecting piece.

[0011] The head of the lightning arrester is connected with the contact arm through a lightning arrester connecting piece.

[0012] The fuse core forms a conduction loop between the contact arm and the voltage transformer.

[0013] The lightning arrester is a full-insulation lightning arrester.

[0014] The vertical frame of the upper frame is provided with an insulating plate on the side surface.

[0015] An inter-phase insulating plate is arranged between the A phase and the B phase of the plum blossom contact, and an inter-phase insulating plate is arranged between the B phase and the C phase of the plum blossom contact.

[0016] The technical scheme of the utility model has the following working principle and beneficial effects:

[0017] The utility model discloses a voltage transformer handcart structure sets up chassis frame, and chassis frame is the basis of installing other components, and upper frame is installed on the upper portion of chassis frame, and is connected through bolt, and the upper frame includes horizontal frame and vertical frame, and horizontal frame and vertical frame are integral type structure, and voltage transformer and lightning arrester are installed on the horizontal frame, and connected body insulator is installed on the vertical frame, and connected body insulator is horizontally arranged, and one end of contact arm is installed on connected body insulator, and the other end of contact arm is installed plum-pudding contact, and contact arm is horizontally arranged, and one end of fuse core is connected with contact arm, and the other end of fuse core is installed on voltage transformer, forms the conduction gourd, and the bottom of lightning arrester is installed on horizontal frame, and the head of lightning arrester is connected with contact arm. The above-mentioned structure, lightning arrester is installed on the upper frame, that is, is located inside voltage transformer handcart structure, and no longer needs to install incoming line lightning arrester in the cable room behind the switch cabinet, avoids occupying the installation space of connecting copper bar in the cable room, no longer wastes resources, makes the manufacturing cost reduce, on the other hand, because no longer occupies the cable room, will not cause the cable room space to be small, avoids constituting the trouble of on-site maintenance and overhaul. The connecting structure of each component is reliable, and the insulation is reliable, improves overall use reliability and safety. BRIEF DESCRIPTION OF DRAWINGS

[0018] The following is a brief description of the content expressed by each drawing of the present specification and the marks in the drawings:

[0019] Figure 1 It is the structural schematic diagram of the voltage transformer handcart structure of the utility model;

[0020] The marks in the drawings are as follows: 1. chassis frame;2. upper frame welding;3. voltage transformer;4. fuse core;5. plum-pudding contact;6. contact arm;7. connected body insulator;8. insulating plate;9. lightning arrester;10. propulsion mechanism;11. roller;12, horizontal frame;13, vertical frame;14, upper crossbeam;15, fuse core upper connecting piece;16, fuse core lower connecting piece;17, lightning arrester connecting piece. DETAILED DESCRIPTION

[0021] The following is a brief description of the content expressed by each drawing of the present specification and the marks in the drawings:

[0022] As shown in the accompanying Figure 1The utility model discloses a voltage transformer handcart structure, upper frame 2 installs on the bottom disc vehicle frame 1 upper portion, and upper frame 2 includes horizontal frame 12 and vertical frame 13, and voltage transformer 4 and lightning arrester 9 are installed on horizontal frame 12, and connected body insulator 7 is installed on vertical frame 13, and one end of contact arm 6 is installed on connected body insulator 7, and the other end of contact arm 6 is installed plum blossom contact 5, and one end of fuse core 4 is connected with contact arm 6, and the other end of fuse core 4 is installed on voltage transformer 3, and the bottom of lightning arrester 9 is installed on horizontal frame 12, and the head of lightning arrester 9 is connected with contact arm 6. The above structure, for the deficiency in the prior art, proposes the technical scheme of improvement. When setting structure, set up bottom disc vehicle frame 1, and bottom disc vehicle frame 1 is the basis for installing other components, and upper frame 2 is installed on the upper portion of bottom disc vehicle frame 1, and is connected by bolt, and upper frame 2 includes horizontal frame 12 and vertical frame 13, and horizontal frame 12 and vertical frame 13 are integrated structure, and voltage transformer 4 and lightning arrester 9 are installed on horizontal frame 12, and connected body insulator 7 is installed on vertical frame 13, and connected body insulator 7 is horizontally arranged, and one end of contact arm 6 is installed on connected body insulator 7, and the other end of contact arm 6 is installed plum blossom contact 5, and contact arm 6 is horizontally arranged, and one end of fuse core 4 is connected with contact arm 6, and the other end of fuse core 4 is installed on voltage transformer 3, and forms the conduction gourd, and the bottom of lightning arrester 9 is installed on horizontal frame 12, and the head of lightning arrester 9 is connected with contact arm 6. The above structure, lightning arrester 9 is installed on upper frame 2, that is, located inside voltage transformer handcart structure, and the incoming line lightning arrester is no longer needed to be installed in the cable room behind the switch cabinet, avoids occupying the installation space of connecting copper bar in the cable room, no longer wastes resources, makes the manufacturing cost reduce, on the other hand, because no longer occupies the cable room, will not cause the cable room space to be small, avoids constituting the trouble of on-site maintenance and overhaul. And the connecting structure of each component is reliable, and the insulation is reliable, improves overall use reliability and safety. The voltage transformer handcart structure, simple structure, low in cost, short in processing period, convenient in assembly and maintenance, high in structural strength, high in insulation performance, improves overall performance, and is easy to popularize.

[0023] The bottom disc vehicle frame 1 is provided with a propelling mechanism 10, and the lower part of the bottom disc vehicle frame 1 is provided with a plurality of rollers 11. The propelling mechanism is a prior art, and the propelling mechanism 10 drives the rollers 11 to move, so that the handcart structure can be moved between the working position and the test position.

[0024] The vertical frame 13 of the upper frame 2 is welded with an upper cross beam 14, and the connected body insulator 7 is installed on the upper cross beam 14. The upper cross beam is welded to increase the strength, so that the connected body insulator 7 can be connected, and the connected body insulator 7 is used to connect the contact arm 6.

[0025] The fuse core 4 is connected with the contact arm 6 through the upper fuse core connecting piece 15, and the other end of the fuse core 4 is connected with the voltage transformer 3 through the lower fuse core connecting piece 16. The above structure forms a conducting loop between the contact arm 6 and the voltage transformer 3 through the fuse core 4, and meets the operation requirement of the handcart structure.

[0026] The head of the lightning arrester 9 is connected with the contact arm 6 through the lightning arrester connecting piece 17. The above structure reliably realizes the connection between the lightning arrester and the contact arm, and realizes the reliable operation requirement of the handcart structure.

[0027] The lightning arrester is a full-insulation type lightning arrester.

[0028] The vertical frame 13 of the upper frame 2 is provided with the insulating plate 8 on the side surface. The phase-to-phase insulating plates are arranged between the A phase and the B phase of the plug-in contact 5 and between the B phase and the C phase of the plug-in contact 5. The above structure ensures that the voltage transformer handcart has high withstand voltage level, and the insulating strength is effectively ensured by installing the insulating plate 8 on the left and right side edges of the upper frame 2 and between the A phase and the B phase and between the B phase and the C phase.

[0029] The voltage transformer handcart structure has the following structure: the bottom frame 1 is provided, the bottom frame 1 is the basis for installing other components, the upper frame 2 is installed on the upper part of the bottom frame 1 and is connected with the bottom frame 1 through bolts, the upper frame 2 comprises a horizontal frame 12 and a vertical frame 13, the horizontal frame 12 and the vertical frame 13 are integrated, the voltage transformer 4 and the lightning arrester 9 are installed on the horizontal frame 12, the connected insulator 7 is installed on the vertical frame 13, the connected insulator 7 is horizontally arranged, one end of the contact arm 6 is installed on the connected insulator 7, the other end of the contact arm 6 is installed with the plug-in contact 5, the contact arm 6 is arranged in a horizontal state, one end of the fuse core 4 is connected with the contact arm 6, and the other end of the fuse core 4 is installed on the voltage transformer 3, thereby forming a conducting hoist, the lightning arrester 9 is installed on the horizontal frame 12, and the head of the lightning arrester 9 is connected with the contact arm 6. The above structure has the following advantages: the lightning arrester 9 is installed on the upper frame 2, i.e. inside the voltage transformer handcart structure, so that the lightning arrester 9 does not need to be installed in the cable room behind the switch cabinet, the installation space of the connecting copper bar in the cable room is avoided, resources are not wasted, the manufacturing cost is reduced, the cable room space is not caused to be small, and the on-site maintenance and repair are not caused to be troublesome. In addition, the connection structure of the components of the handcart structure is reliable, the insulation is reliable, and the use reliability and safety are improved.

[0030] The utility model has carried on the exemplary description above binding the drawing, obviously the utility model concrete implementation is not limited by above-mentioned mode, as long as various improvements of method conception and technical scheme that adopted the utility model or the conception and technical scheme of the utility model are not improved and are directly applied to other occasions, are all in the protection scope of the utility model.

Claims

1. A voltage transformer handcart structure, characterized by: The upper frame (2) is installed on the upper part of the chassis frame (1), the upper frame (2) comprises a horizontal frame (12) and a vertical frame (13), the voltage transformer (3) and the lightning arrester (9) are installed on the horizontal frame (12), the connected insulator (7) is installed on the vertical frame (13), the contact arm (6) is installed on the connected insulator (7) at one end, the contact arm (6) is installed on the star contact (5) at the other end, the fuse core (4) is connected to the contact arm (6) at one end, and the fuse core (4) is installed on the voltage transformer (3) at the other end, the lightning arrester (9) is installed on the horizontal frame (12) at the bottom, and the lightning arrester (9) is connected to the contact arm (6) at the head; The chassis frame (1) is provided with a propelling mechanism (10) installed thereon, and the chassis frame (1) is provided with a rolling wheel (11) installed on the lower part thereof; The vertical frame (13) of the upper frame (2) is welded with an upper cross beam (14), and the connected insulator (7) is installed on the upper cross beam (14); One end of the fuse core (4) is connected to the contact arm (6) through a fuse core upper connecting piece (15), and the other end of the fuse core (4) is connected to the voltage transformer (3) through a fuse core lower connecting piece (16); The head of the lightning arrester (9) is connected to the contact arm (6) through a lightning arrester connecting piece (17).

2. The voltage transformer handcart structure according to claim 1, characterized by: The fuse core (4) forms a conduction loop between the contact arm (6) and the voltage transformer (3).

3. A voltage transformer kiosk structure according to claim 1 or 2, characterised in that: The lightning arrester (9) is a full-insulation lightning arrester.

4. A voltage transformer kiosk structure according to claim 1 or 2, characterised in that: The vertical frame (13) of the upper frame (2) is provided with an insulating plate (8) installed on the side surface thereof.

5. The voltage transformer kiosk structure of claim 1 or 2, wherein: The A phase and the B phase of the star contact (5) are provided with a phase-to-phase insulating plate, and the B phase and the C phase of the star contact (5) are provided with a phase-to-phase insulating plate.

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