Testing device of high-voltage switchgear

Abstract

The utility model provides a testing device for high-voltage switch equipment. The testing device comprises a connecting sleeve and a sealing plate, one end of the connecting sleeve is fixed on the outer side wall of the circuit breaker cabinet body and is peripherally sealed with the circuit breaker cabinet body; the sealing plate is fixed with the other end of the connecting sleeve and is peripherally sealed with the other end of the connecting sleeve; inner cone sockets which are in one-to-one axial correspondence with conductor slots in the outer wall of the circuit breaker cabinet body are arranged in the connecting sleeve, one end of each inner cone socket is matched and connected with the corresponding conductor slot in an inserted mode and conducts electricity, and the other end of each inner cone socket is fixed to the sealing plate and is sealed in the circumferential direction. The other end of each inner cone socket is electrically connected with one test cable; two self-sealing valves are connected to the side wall of the connecting sleeve, a gas density meter is installed on one self-sealing valve, and the other self-sealing valve is used for being connected with inflation equipment so that the inflation equipment can inflate dry air into the connecting sleeve; according to the utility model, the withstand voltage test of the high-voltage switchgear can be realized so as to meet the withstand voltage test requirement of the high-voltage switchgear.

Description

TECHNICAL FIELD

[0001] The utility model relates to high voltage switchgear technical field, specifically, relate to a kind of test device of high voltage switchgear. BACKGROUND

[0002] Gas Insulated metal-enclosed Switchgear (GIS) is a unit device composed of various switchgears and busbars. Currently, GIS devices have common tank type and separate tank type. The common tank type is that three-phase (A-phase, B-phase and C-phase) conductors are installed in a closed metal shell filled with specific pressure according to a certain angle. The other separate tank type structure is that three-phase (A-phase, B-phase and C-phase) conductors are respectively installed in independent closed metal shells filled with specific pressure. Since all high-potential conductors of GIS are placed in a metal shell, they are not affected by the external environment. When in normal operation, operating and maintenance personnel will not touch live parts, and GIS devices can be safely and reliably operated in limited space. Therefore, GIS devices are increasingly widely used in high-voltage fields.

[0003] Insulation performance is a basic function that must be met for high-voltage switchgears to operate normally. After GIS devices are transported to the construction site for installation, the inspection department will conduct a withstand voltage test on the GIS devices before the power station is formally delivered. The purpose of the utility model is to provide a test device for testing the withstand voltage of high-voltage switchgears. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem of providing a test device for high-voltage switchgears, which can test the withstand voltage of high-voltage switchgears to meet the withstand voltage test requirements of high-voltage switchgears.

[0005] The utility model provides a test device for high-voltage switchgears, which comprises a connecting sleeve and a sealing plate. One end of the connecting sleeve is fixed to the outer wall of the circuit breaker cabinet and is circumferentially sealed with the circuit breaker cabinet. The other end of the connecting sleeve is fixed to the sealing plate and is circumferentially sealed. The inside of the connecting sleeve is provided with an inner cone socket corresponding to the conductor slot on the outer wall of the circuit breaker cabinet. One end of each inner cone socket is matched with the corresponding conductor slot and is electrically connected. The other end of each inner cone socket is fixed to the sealing plate and is circumferentially sealed. The other end of each inner cone socket is electrically connected to one of the test cables. Two self-sealing valves are connected to the side wall of the connecting sleeve. A gas density meter is installed on one of the self-sealing valves. The other self-sealing valve is used to connect to the inflation equipment to inflate dry air into the connecting sleeve.

[0006] The utility model discloses a structure, which can realize the withstand voltage test of the high-voltage switch equipment, thereby meeting the withstand voltage test requirement of the high-voltage switch equipment.

[0007] In a possible implementation, the other end of each inner cone socket is abutted against and circumferentially sealed with the inner side of the sealing plate, the outer side of the sealing plate is provided with a flange plate axially corresponding to each inner cone socket, and the other end of each inner cone socket is fastened with the sealing plate through a plurality of bolts threaded into the sealing plate and the corresponding flange plate and screwed with the other end of the inner cone socket.

[0008] In a possible implementation, a sealing washer is embedded between the sealing plate and the other end of the connecting sleeve, and the sealing plate and the other end of the connecting sleeve are circumferentially sealed through the sealing washer.

[0009] In a possible implementation, the outer side wall of the sealing plate is fixed with a fixing plate on the side of each inner cone socket in the radial direction, and the fixing plate is used for supporting and fixing the test cable electrically connected with the corresponding inner cone socket.

[0010] In a possible implementation, the outer side wall of each fixing plate is fixed with a reinforcing rib plate, and the reinforcing rib plate extends along the length direction of the fixing plate. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1The utility model discloses a main view structure schematic drawing of removing circuit breaker cabinet body after;

[0012] Figure 2 The utility model discloses a first three -dimensional structure schematic drawing of removing circuit breaker cabinet body after;

[0013] Figure 3 The utility model discloses a second three -dimensional structure schematic drawing of removing circuit breaker cabinet body after;

[0014] Figure 4 The utility model discloses a sectional structure schematic drawing of removing circuit breaker cabinet body after. DETAILED DESCRIPTION

[0015] First, those skilled in the art should understand that these embodiments are only used to explain the technical principles of the embodiments of the application, and are not intended to limit the protection scope of the embodiments of the application. Those skilled in the art can adjust them as needed in order to adapt to specific application occasions.

[0016] In the description of the embodiments of the application, it should be explained that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected, can be mechanically connected, can be electrically connected, can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the application can be understood according to specific circumstances.

[0017] In the embodiments of the application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be indirectly contacted through an intermediate medium. Moreover, the first feature can be directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature can be directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0018] The application will be further described in detail below in combination with the drawings and specific embodiments.

[0019] Reference Figures 1-4As shown, the embodiment of the application discloses a kind of test device of high voltage switchgear, including connecting sleeve 1 and sealing plate 2;One end of connecting sleeve 1 is fixed on the outer wall of circuit breaker cabinet 3 and is circumferentially sealed with circuit breaker cabinet 3, and the other end of sealing plate 2 is fixed with connecting sleeve 1 and circumferentially sealed;The inside of connecting sleeve 1 is provided with the inner cone socket 5 corresponding to the conductor slot 4 on the outer wall of circuit breaker cabinet 3 in axial direction, one end of each inner cone socket 5 is matched with the corresponding conductor slot 4 and is conductive, the other end of each inner cone socket 5 is fixed with sealing plate 2 and is circumferentially sealed, and the other end of each inner cone socket 5 is electrically connected with one of test cable;Two self-sealing valves 6 are connected on the side wall of connecting sleeve 1, a gas density meter is installed on one of the self-sealing valves 6, and the other self-sealing valve 6 is used to be connected with the inflation device to make the inflation device fill dry air into the connecting sleeve 1.

[0020] The utility model discloses in using, first make every inner cone socket's one end with the conductor slot on the corresponding position matched plugging, then with the outer side wall of circuit breaker cabinet fixed and circumferentially sealed of one end of connecting sleeve, then through inflation device, fill dry air into connecting sleeve, and fill the dry air of required air pressure value in connecting sleeve by observing the numerical value that gas density meter shows, finally, the test cable is electrified and adjusts voltage value to realize the withstand voltage test of high voltage switchgear.

[0021] The other end of each inner cone socket 5 is abutted with the inner side of sealing plate 2 and is circumferentially sealed, the outer side of sealing plate 2 is provided with flange plate 7 corresponding to each inner cone socket 5 in axial direction, and the other end of each inner cone socket 5 and sealing plate 2 are fastened by a plurality of bolts threaded connected with the other end of inner cone socket 5 and arranged in sealing plate 2 and corresponding flange plate 7;After adopting this structure, under the cooperation of flange plate and bolt, the other end of each inner cone socket can be reliably fixed together with the inner side of sealing plate, in addition, sealing ring can be embedded between the other end of inner cone socket and sealing plate to further improve the sealing between the other end of inner cone socket and sealing plate.

[0022] Sealing washer 8 is embedded between sealing plate 2 and the other end of connecting sleeve 1, and sealing plate 2 and the other end of connecting sleeve 1 are circumferentially sealed by sealing washer 8;After adopting this structure, under the action of sealing washer, sealing washer can reliably seal the gap between sealing plate and the other end of connecting sleeve, in addition, sealing plate and the other end of connecting sleeve can be reliably fastened together by a plurality of circumferentially spaced bolt assemblies.

[0023] The outer side wall of the sealing plate 2 is fixed with a fixing plate 9 on one side of the radial direction of each inner cone socket 5, and the fixing plate 9 is used to support and fix the test cable electrically connected with the corresponding inner cone socket 5; through the setting of the fixing plate, the fixing plate can reliably realize the support and fixation of the test cable on the corresponding position, that is, the test cable can be effectively prevented from being separated from the inner cone socket; in addition, the test cable can be fastened on the fixing plate by a hoop.

[0024] The outer side wall of each fixing plate 9 is fixed with a reinforcing rib plate 91 extending along the length direction of the fixing plate 9; through the adoption of this structure, under the action of the reinforcing rib plate, the deformation resistance and bending resistance of each fixing plate can be improved, so that the fixing plate can reliably support and fix the test cable.

[0025] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A test device for a high voltage switching device, characterized in that: The utility model relates to a kind of test cable connection structure of circuit breaker, including connecting sleeve (1) and sealing plate (2);The one end of connecting sleeve (1) is fixed on the outer wall of circuit breaker cabinet (3) and is circumferentially sealed with circuit breaker cabinet (3), and the sealing plate (2) is fixed with the other end of connecting sleeve (1) and circumferentially sealed;The inside of connecting sleeve (1) is provided with the inner cone socket (5) corresponding with conductor slot (4) on the outer wall of circuit breaker cabinet (3) one by one in axial direction, and the one end of each inner cone socket (5) is matched with corresponding conductor slot (4) and is conductive, and the other end of each inner cone socket (5) is fixed with sealing plate (2) and circumferentially sealed, and the other end of each inner cone socket (5) is electrically connected with one of test cable;Two self-sealing valves (6) are connected on the side wall of connecting sleeve (1), and gas density table is installed on one of self-sealing valves (6), and the other self-sealing valve (6) is used to be connected with inflation equipment to make inflation equipment fill dry air into connecting sleeve (1).

2. The testing device for high voltage switchgear according to claim 1, characterized in that: The other end of each inner cone socket (5) is abutted with the inside of sealing plate (2) and circumferentially sealed, and the outside of sealing plate (2) is provided with flange plate (7) corresponding with each inner cone socket (5) one by one in axial direction, and the other end of each inner cone socket (5) is fastened by the bolt of being threaded in sealing plate (2) and corresponding flange plate (7) and being connected with the other end of inner cone socket (5).

3. The testing device for high voltage switchgear according to claim 1, characterized in that: Sealing washer (8) is embedded between sealing plate (2) and the other end of connecting sleeve (1), and sealing plate (2) and the other end of connecting sleeve (1) are circumferentially sealed by sealing washer (8).

4. The testing device for high voltage switching equipment according to any of claims 1-3, characterized in that: The outside wall of sealing plate (2) is fixed with fixed plate (9) on the side of each inner cone socket (5) in radial direction, and fixed plate (9) is used to support and fix test cable electrically connected with corresponding inner cone socket (5).

5. The testing device for high voltage switchgear according to claim 4, characterized in that: Reinforcing rib plate (91) is fixed on the outside wall of each fixed plate (9), and reinforcing rib plate (91) extends along the length direction of fixed plate (9).

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