CN223538937U

CN223538937U - Partial discharge detection device for transformer substation

Info

Publication number: CN223538937U
Application number: CN202422190128.0U
Authority: CN
Inventors: 孟晓东; 姚余清; 陈文文; 郑健
Original assignee: Shandong Wuzhou Electric Co ltd Power Transmission And Transformation Engineering Branch
Current assignee: Shandong Wuzhou Electric Co ltd Power Transmission And Transformation Engineering Branch
Priority date: 2024-09-06
Filing date: 2024-09-06
Publication date: 2025-11-11
Anticipated expiration: 2034-09-06

Abstract

The utility model discloses a transformer substation partial discharge detection device, and relates to the field of power detection. The partial discharge detection device of the transformer substation comprises a bracket, wherein a sliding groove is formed in the bracket, a sliding block is connected in the sliding groove in a sliding manner, two sides of the bracket are symmetrically provided with a shell, and a guide rod is fixedly connected in the shell; compared with the existing detection device, the device can realize automatic lifting and locking of the partial discharge detector, when the lifting plate descends to the lowest end, the first tensioning spring can exert pressure on the first tensioning spring, and then the first tensioning spring can generate an upward thrust on the lifting plate, so that when the lifting plate is controlled to move upwards again, the lifting plate can move upwards more smoothly, manual operation is not needed in the whole process, and the detection efficiency of the device for detecting partial discharge of the electric equipment is effectively improved.

Description

Partial discharge detection device for transformer substation

Technical Field

The utility model belongs to the technical field of power detection, and particularly relates to a partial discharge detection device of a transformer substation.

Background

In the operation process of a transformer substation, partial discharge of internal electrical equipment is an important hidden danger affecting equipment safety and power grid stability, and timely and accurately detecting the partial discharge phenomenon is important for preventing electrical faults and guaranteeing reliable operation of a power system.

In the prior art, the application number is CN202210440883.2, the name is partial discharge detection device, the partial discharge detection device comprises a support frame, a driving mechanism and a detection mechanism, wherein the support frame is provided with a first matching part and a second matching part, the driving mechanism comprises a driving frame and a lifting frame, one end of the driving frame is movably connected with the support frame through the first matching part, the other end of the driving frame is movably connected with the lifting frame, one end of the lifting frame is movably connected with the support frame through the second matching part, and the lifting frame can move relative to the support frame so that the lifting frame can lift relative to the support frame, and the detection mechanism is arranged on the lifting frame and is used for carrying out partial discharge detection.

The partial discharge detection device can lift the detection mechanism to the side of the electrical equipment positioned at a higher position to perform partial discharge detection on the electrical equipment positioned at the higher position, but the whole lifting process needs manual operation, and after the detection mechanism is lifted to a designated position, the detection mechanism also needs manual height limiting, so that the operation is more complicated, and the automatic lifting of the detection mechanism can be realized by adding the screw rod and the motor to the device, but when the lifting frame is positioned at a lower position, the lifting frame is controlled to lift, the lifting frame is difficult to automatically lift because the forward force of the lifting frame is larger than the upward force, and the lifting frame also needs manual lifting.

Disclosure of utility model

The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a transformer substation partial discharge detection device which can overcome the problems or at least partially solve the problems.

The technical scheme is that the transformer substation partial discharge detection device comprises a support, a driving motor, a first tensioning spring and a second tensioning spring, wherein a sliding groove is formed in the support, sliding blocks are connected in the sliding groove in a sliding mode, a shell is symmetrically arranged on two sides of the support, a guide rod is fixedly connected in the shell, sliding rods are connected to the guide rod in a sliding mode, a lifting plate is arranged between the two sliding rods, a partial discharge detector is arranged on the lifting plate, an adjusting rod is connected between the sliding blocks and the lifting plate in a rotating mode through a rotating shaft, the sliding rod is further arranged in the sliding groove of the support in a rotating mode, the driving motor is fixedly connected to the end portion of the support, the output end of the driving motor is fixedly connected with one end, adjacent to the lead screw, of the driving motor, and the lower end of the first tensioning spring is fixedly connected with the bottom of the shell in a sleeved mode.

In order to facilitate flexible disassembly and assembly of the partial discharge detector, further, the lifting plate is fixedly connected with a concave mounting plate through a supporting rod, two groups of moving rods are symmetrically and slidably connected to two sides of the concave mounting plate, two groups of clamping plates are fixedly connected to adjacent ends of the moving rods, a second tensioning spring is sleeved on the moving rods, and two ends of the second tensioning spring are fixedly connected with the concave mounting plate and the clamping plates respectively.

In order to be convenient for dismantle the device and break up to when not using, accomodate it, reduce the occupation space of the device when depositing, further, can dismantle between casing and the support and be connected, can dismantle between slide bar and the lifter plate and be connected.

Furthermore, one side of the lower end of the shell, which is close to the bracket, is symmetrically provided with an extension plate, the extension plate is in threaded connection with the shell through a first bolt, one end of the sliding rod, which extends out of the shell, is fixedly connected with a connecting sleeve, the lifting plate is inserted into the connecting sleeve, and the lifting plate is in threaded connection with the connecting sleeve through a second bolt.

In order to reduce friction force between the sliding rod, the guide rod and the shell, further, the upper side and the lower side of the connecting sleeve are both rotatably connected with a bearing wheel through a support, and the bearing wheel rolls on the shell.

In order to facilitate flexible movement of the device, further, the self-locking universal wheels are symmetrically connected to two sides of one side, away from the driving motor, of the support in a rotating mode, a bump is integrally connected to the lower end of one side, close to the driving motor, of the support, and the lower surface of the bump is flush with the bottom of the self-locking universal wheels.

Compared with the existing detection device, the device can realize automatic lifting and locking of the partial discharge detector, when the lifting plate descends to the lowest end, the first tensioning spring can exert pressure, and then the first tensioning spring can generate an upward thrust on the lifting plate, so that when the lifting plate is controlled to move upwards again, the lifting plate can move upwards more smoothly, and manual operation is not needed in the whole process, so that the detection efficiency of the device for partial discharge detection of the electric equipment is effectively improved.

The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings.

Drawings

In the drawings:

FIG. 1 is a schematic diagram of a first embodiment of the present utility model;

FIG. 2 is a schematic diagram of a second embodiment of the present utility model;

FIG. 3 is an expanded view of a portion of the structure of the present utility model.

In the figure, 1, a bracket, 101, a self-locking universal wheel, 102, a sliding groove, 103, a screw rod, 104, a driving motor, 105, a sliding block, 106, an adjusting rod, 2, a shell, 201, an extension plate, 202, a first bolt, 203, a guide rod, 204, a first tensioning spring, 205, a sliding rod, 206, a connecting sleeve, 207, a second bolt, 208, a receiving wheel, 3, a lifting plate, 301, a concave mounting plate, 302, a clamping plate, 303, a moving rod, 304, a second tensioning spring and 4, a partial discharge detector.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model, and the following embodiments are used to illustrate the present utility model, but are not intended to limit the scope of the present utility model.

Example 1:

Referring to fig. 1-3, the partial discharge detection device of the transformer substation comprises a support 1, a sliding groove 102 is formed in the support 1, a sliding block 105 is connected in the sliding groove 102 in a sliding mode, a shell 2 is symmetrically arranged on two sides of the support 1, a guide rod 203 is fixedly connected in the shell 2, a sliding rod 205 is connected to the guide rod 203 in a sliding mode, a lifting plate 3 is installed between the two sliding rods 205, a partial discharge detector 4 is installed on the lifting plate 3, an adjusting rod 106 is connected between the sliding block 105 and the lifting plate 3 in a rotating mode through a rotating shaft, the partial discharge detection device further comprises a screw rod 103, the partial discharge detection device is connected in the sliding groove 102 of the support 1 in a rotating mode, a driving motor 104 is fixedly connected to the end portion of the support 1, an output end of the driving motor is fixedly connected with one end, adjacent to the screw rod 103, of a first tensioning spring 204 is sleeved on the guide rod 203, and the lower end of the first tensioning spring 204 is fixedly connected with the bottom of the shell 2.

When the electrical equipment stored at a higher position in the transformer substation needs to be subjected to partial discharge detection, the device can be moved to the side of the electrical equipment at the moment, then the bracket 1 can be horizontally placed on the ground, then the driving motor 104 can be started, the driving motor 104 drives the sliding block 105 to move through the screw rod 103, the sliding block 105 drives the sliding rod 205 to move downwards in the shell 2 through the adjusting rod 106 and the guide rod 203, then the sliding rod 205 can move the lifting plate 3 to the lowest end, when the lifting plate 3 is in contact with the first tensioning spring 204, the lifting plate 3 compresses the first tensioning spring 204, then a worker can install the partial discharge detector 4 on the lifting plate 3, then the driving motor 104 is started to control the screw rod 103 to overturn, the partial discharge detector 4 can be driven to move upwards to a position to be detected on the electrical equipment by the lifting plate 3, then the partial discharge detector 4 is started, the electrical equipment can be detected, after detection is completed, the lifting plate 3 is controlled to move downwards, and the partial discharge detector 4 can be stored.

Through set up lead screw 103, driving motor 104 and first tensioning spring 204 on current detection device, compare with current detection device, the device not only can realize the automatic rising and locking to partial discharge detector 4, after lifter plate 3 descends to the lower extreme, still can exert a pressure for first tensioning spring 204, then first tensioning spring 204 just can produce an ascending thrust to lifter plate 3, thereby when being convenient for control lifter plate 3 again and shift up, lifter plate 3 can more smooth-going shift up, whole process need not manual operation, effectively improve the detection efficiency that device carries out partial discharge detection to electrical equipment.

Example 2:

Referring to fig. 1-3, the substation partial discharge detection device is basically the same as that of embodiment 1, and further, a concave mounting plate 301 is fixedly connected to a lifting plate 3 through a supporting rod, two groups of moving rods 303 are symmetrically and slidingly connected to two sides of the concave mounting plate 301, clamping plates 302 are fixedly connected to adjacent ends of the two groups of moving rods 303, second tensioning springs 304 are sleeved on the moving rods 303, and two ends of each second tensioning spring 304 are fixedly connected with the concave mounting plate 301 and the clamping plates 302 respectively.

Through installing concave mounting panel 301, carriage release 303, grip block 302 and second tensioning spring 304 on lifter plate 3, when installing partial discharge detector 4 on lifter plate 3, can make it quick fixed to lifter plate 3 to when need dismantle it, can be convenient for dismantle it fast, effectively improved the practicality of device.

Example 3:

Referring to fig. 1 to 3, the partial discharge detection device for a transformer substation is basically the same as that of embodiment 2, and further, the shell 2 is detachably connected with the bracket 1, and the sliding rod 205 is detachably connected with the lifting plate 3.

An extension plate 201 is symmetrically arranged at one side, close to the support 1, of the lower end of the shell 2, the extension plate 201 is in threaded connection with the shell 2 through a first bolt 202, a connecting sleeve 206 is fixedly connected to one end, extending out of the shell 2, of a sliding rod 205, a lifting plate 3 is inserted into the connecting sleeve 206, and the lifting plate 3 is in threaded connection with the connecting sleeve 206 through a second bolt 207.

After the partial discharge detection of the electrical equipment in the transformer substation is completed, the lifting plate 3 can be lowered to the initial position, then the first bolt 202 and the second bolt 207 can be unscrewed, and then the shell 2 is moved to the outer side, so that the shell 2 and the bracket 1 and the connecting sleeve 206 and the lifting plate 3 can be separated, the device can be detached and scattered, the device can be stored when not used, and the occupied space of the device when stored is reduced.

Example 4:

Referring to fig. 1-3, the partial discharge detection device of the transformer substation is basically the same as that of embodiment 3, further, the upper and lower sides of the connecting sleeve 206 are both rotatably connected with the receiving wheels 208 through the support, the receiving wheels 208 roll on the housing 2, and by setting the receiving wheels 208, when the sliding rod 205 moves in the housing 2, the friction force between the sliding rod 205 and the guide rod 203 as well as between the sliding rod 205 and the housing 2 can be reduced, so that the lifting plate 3 can be lifted more smoothly.

The support 1 is kept away from one side bilateral symmetry rotation of driving motor 104 and is connected with auto-lock universal wheel 101, one side lower extreme an organic whole that support 1 is close to driving motor 104 is connected with the lug, the lower surface of lug is parallel and level mutually with auto-lock universal wheel 101's bottom, after removing the device to needs the electrical equipment that detects, alright place subaerial with support 1 this moment, make auto-lock universal wheel 101, the lug all contact with ground, then alright control partial discharge detector 4 rise to appointed position and detect the operation, after accomplishing the detection, alright handheld lug of staff at this moment, through auto-lock universal wheel 101 pulling the device remove, the flexibility of the device has effectively been improved, the device is removed to the staff is convenient.

The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the present utility model in any way, although the present utility model has been described in the preferred embodiments, and is not limited thereto.

Claims

1. A partial discharge detection device for a substation, comprising a bracket (1), wherein a sliding groove (102) is provided on the bracket (1), a slider (105) is slidably connected in the sliding groove (102), housings (2) are symmetrically arranged on both sides of the bracket (1), a guide rod (203) is fixedly connected in the housing (2), a sliding rod (205) is slidably connected on the guide rod (203), a lifting plate (3) is installed between the two sliding rods (205), a partial discharge detector (4) is installed on the lifting plate (3), and an adjusting rod (106) is rotatably connected between the slider (105) and the lifting plate (3) via a rotating shaft, characterized in that it further comprises:

The lead screw (103) is rotatably connected in the groove (102) of the bracket (1);

The drive motor (104) is fixedly connected to the end of the bracket (1), and its output end is fixedly connected to the end of the lead screw (103) adjacent to it.

The first tension spring (204) is sleeved on the guide rod (203), and the lower end of the first tension spring (204) is fixedly connected to the bottom of the housing (2).

2. The substation partial discharge detection device according to claim 1, characterized in that a concave mounting plate (301) is fixedly connected to the lifting plate (3) by a support rod, two sets of moving rods (303) are symmetrically slidably connected to both sides of the concave mounting plate (301), a clamping plate (302) is fixedly connected to one adjacent end of each of the two sets of moving rods (303), a second tension spring (304) is sleeved on the moving rod (303), and the two ends of the second tension spring (304) are fixedly connected to the concave mounting plate (301) and the clamping plate (302) respectively.

3. The substation partial discharge detection device according to claim 1, wherein the housing (2) is detachably connected to the bracket (1), and the slide rod (205) is detachably connected to the lifting plate (3).

4. The substation partial discharge detection device according to claim 3, characterized in that an extension plate (201) is symmetrically arranged on the side of the lower end of the housing (2) near the support (1), the extension plate (201) and the housing (2) are threadedly connected by a first bolt (202), a connecting sleeve (206) is fixedly connected to one end of the slide rod (205) extending out of the housing (2), the lifting plate (3) is inserted into the connecting sleeve (206), and the lifting plate (3) and the connecting sleeve (206) are threadedly connected by a second bolt (207).

5. The substation partial discharge detection device according to claim 4, characterized in that the upper and lower sides of the connecting sleeve (206) are rotatably connected to the receiving wheel (208) through the support, and the receiving wheel (208) rolls on the housing (2).

6. The substation partial discharge detection device according to claim 1, characterized in that, the bracket (1) is symmetrically rotatably connected to two sides on the side away from the drive motor (104), and a protrusion is integrally connected to the lower end of the side of the bracket (1) close to the drive motor (104), and the lower surface of the protrusion is flush with the bottom of the self-locking universal wheel (101).