Substation partial discharge detection device

Abstract

The utility model discloses a transformer station partial discharge detection device, and relates to the field of electric power detection. The transformer substation partial discharge detection device comprises a support, a sliding groove is formed in the support, a sliding block is connected into the sliding groove in a sliding mode, shells are symmetrically arranged on the two sides of the support, and guide rods are fixedly connected into the shells; according to the utility model, the screw rod, the driving motor and the first tension spring are arranged on the existing detection device, so that compared with the existing detection device, the device not only can realize automatic lifting and locking of the partial discharge detector, but also can exert pressure on the first tension spring when the lifting plate descends to the lowest end, so that the partial discharge detector can be automatically lifted and locked; and then, the first tensioning spring generates an upward thrust on the lifting plate, so that the lifting plate can move upwards more smoothly when the lifting plate is controlled to move upwards again, manual operation is not needed in the whole process, and the detection efficiency of the device for performing partial discharge detection on the electrical equipment is effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of power detection technology, specifically, it relates to a partial discharge detection device for substations. Background Technology

[0002] During the operation of a substation, partial discharge of internal electrical equipment is a significant hidden danger affecting equipment safety and power grid stability. Timely and accurate detection of partial discharge is crucial for preventing electrical faults and ensuring the reliable operation of the power system.

[0003] In the prior art, application number CN202210440883.2, entitled "Partial Discharge Detection Device," discloses a partial discharge detection device, including a support frame, a drive mechanism, and a detection mechanism. The support frame has a first mating part and a second mating part; the drive mechanism includes a drive frame and a lifting frame, one end of the drive frame being movably connected to the support frame through the first mating part, and the other end of the drive frame being movably connected to the lifting frame, the lifting frame being movably connected to the support frame through the second mating part, and one end of the drive frame being movable relative to the support frame, so that the lifting frame can move up and down relative to the support frame; the detection mechanism is disposed on the lifting frame and is used for partial discharge detection.

[0004] This partial discharge detection device can raise the detection mechanism to a higher position next to electrical equipment for partial discharge detection. However, the entire lifting process requires manual operation, and after raising the detection mechanism to the designated position, manual height limiting is also required, making the operation cumbersome. Although adding a lead screw and motor to the device can achieve automatic lifting of the detection mechanism, when the lifting frame is at a lower position, it is difficult to control the lifting frame to move automatically because the forward force on the lifting frame is greater than the upward force. Manual lifting of the lifting frame is still required. Therefore, this utility model is proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a substation partial discharge detection device that can overcome or at least partially solve the above problems.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows: a partial discharge detection device for substations, including a bracket, a sliding groove on the bracket, a slider slidably connected in the sliding groove, housings symmetrically arranged on both sides of the bracket, a guide rod fixedly connected in the housing, a sliding rod slidably connected on the guide rod, a lifting plate installed between the two sliding rods, a partial discharge detector installed on the lifting plate, and an adjusting rod rotatably connected between the slider and the lifting plate via a rotating shaft. The device also includes: a lead screw rotatably connected in the sliding groove of the bracket; a drive motor fixedly connected to the end of the bracket, with its output end fixedly connected to the end adjacent to the lead screw; and a first tension spring sleeved on the guide rod, with its lower end fixedly connected to the bottom of the housing.

[0007] To facilitate flexible assembly and disassembly of the partial discharge detector, a concave mounting plate is fixedly connected to the lifting plate via a support rod. Two sets of moving rods are symmetrically slidably connected to both sides of the concave mounting plate. A clamping plate is fixedly connected to one adjacent end of each set of moving rods. A second tension spring is sleeved on the moving rod, and the two ends of the second tension spring are fixedly connected to the concave mounting plate and the clamping plate, respectively.

[0008] To facilitate disassembly and disassembly of the device for storage when not in use, thereby reducing the space occupied by the device during storage, the housing and the bracket are detachably connected, and the slide rod and the lifting plate are detachably connected.

[0009] Furthermore, an extension plate is symmetrically arranged on the lower end of the housing near the support. The extension plate is threadedly connected to the housing by a first bolt. A connecting sleeve is fixedly connected to one end of the slide rod extending out of the housing. The lifting plate is inserted into the connecting sleeve. The lifting plate and the connecting sleeve are threadedly connected by a second bolt.

[0010] To further reduce the friction between the slide rod, guide rod, and housing, the upper and lower sides of the connecting sleeve are rotatably connected to receiving wheels via supports, and the receiving wheels roll on the housing.

[0011] To facilitate flexible movement of the device, the bracket is further provided with self-locking casters symmetrically connected to both sides on the side away from the drive motor, and a protrusion is integrally connected to the lower end of the bracket on the side closer to the drive motor, with the lower surface of the protrusion flush with the bottom of the self-locking caster.

[0012] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: By setting a lead screw, a drive motor and a first tension spring on the existing detection device, the present invention can not only realize the automatic lifting and locking of the partial discharge detector, but also apply pressure to the first tension spring when the lifting plate descends to the lowest point. Then the first tension spring will generate an upward thrust on the lifting plate, so that when the lifting plate is controlled to move up again, the lifting plate can move up more smoothly. The whole process does not require manual operation, effectively improving the detection efficiency of the device for partial discharge detection of electrical equipment.

[0013] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0014] In the attached diagram:

[0015] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0017] Figure 3 This is a schematic diagram showing the unfolded structure of a portion of this utility model.

[0018] In the diagram: 1. Bracket; 101. Self-locking caster wheel; 102. Slide groove; 103. Lead screw; 104. Drive motor; 105. Slider; 106. Adjusting rod; 2. Housing; 201. Extension plate; 202. First bolt; 203. Guide rod; 204. First tension spring; 205. Slide rod; 206. Connecting sleeve; 207. Second bolt; 208. Receiving wheel; 3. Lifting plate; 301. Concave mounting plate; 302. Clamping plate; 303. Moving rod; 304. Second tension spring; 4. Partial discharge detector. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0020] Example 1:

[0021] Reference Figures 1-3A partial discharge detection device for a substation includes a bracket 1 with a groove 102 on the bracket 1. A slider 105 is slidably connected in the groove 102. A housing 2 is symmetrically arranged on both sides of the bracket 1. A guide rod 203 is fixedly connected in the housing 2. A slider 205 is slidably connected on the guide rod 203. A lifting plate 3 is installed between the two sliders 205. A partial discharge detector 4 is installed on the lifting plate 3. An adjusting rod 106 is rotatably connected between the slider 105 and the lifting plate 3 via a rotating shaft. The device also includes: a lead screw 103 rotatably connected in the groove 102 of the bracket 1; a drive motor 104 fixedly connected to the end of the bracket 1, with its output end fixedly connected to the end adjacent to the lead screw 103; and a first tension spring 204 sleeved on the guide rod 203, with its lower end fixedly connected to the bottom of the housing 2.

[0022] When partial discharge detection is required on electrical equipment located at a high position in a substation, the device can be moved next to the equipment. The bracket 1 can then be placed flat on the ground. The drive motor 104 is then started, which, via the lead screw 103, moves the slider 105. The slider 105, through the adjusting rod 106 and guide rod 203, moves the sliding rod 205 downwards within the housing 2. The sliding rod 205 then lowers the lifting plate 3 to its lowest point. When the lifting plate 3 contacts the first tension spring 204, it compresses the spring. The operator can then install the partial discharge detector 4 onto the lifting plate 3. The drive motor 104 is then started again to control the lead screw 103 to rotate, allowing the lifting plate 3 to move the partial discharge detector 4 to the position on the electrical equipment to be tested. The detector 4 is then activated to perform the detection operation on the electrical components within the equipment. After the test is completed, the lifting plate 3 is lowered to remove and store the partial discharge detector 4.

[0023] By incorporating a lead screw 103, a drive motor 104, and a first tension spring 204 into the existing detection device, this device not only enables automatic lifting and locking of the partial discharge detector 4, but also applies pressure to the first tension spring 204 when the lifting plate 3 descends to its lowest point. The first tension spring 204 then generates an upward thrust on the lifting plate 3, making it easier to control the lifting plate 3 to move upward more smoothly. The entire process requires no manual operation, effectively improving the detection efficiency of the device for partial discharge detection of electrical equipment.

[0024] Example 2:

[0025] Reference Figures 1-3The substation partial discharge detection device is basically the same as that in Embodiment 1, but with a further improvement: a concave mounting plate 301 is fixedly connected to the lifting plate 3 by a support rod, and 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 set 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.

[0026] By installing a concave mounting plate 301, a moving rod 303, a clamping plate 302, and a second tensioning spring 304 on the lifting plate 3, the partial discharge detector 4 can be quickly fixed to the lifting plate 3 when it is installed on the lifting plate 3, and it can be easily disassembled when it needs to be disassembled, which effectively improves the practicality of the device.

[0027] Example 3:

[0028] Reference Figures 1-3 The substation partial discharge detection device is basically the same as that in Example 2, but with the following additional features: the housing 2 and the bracket 1 are detachably connected, and the slide rod 205 and the lifting plate 3 are detachably connected.

[0029] An extension plate 201 is symmetrically arranged on the lower end of the housing 2 near the support 1. The extension plate 201 is threadedly connected to the housing 2 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. The lifting plate 3 and the connecting sleeve 206 are threadedly connected by a second bolt 207.

[0030] After the partial discharge test of the electrical equipment in the 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. Then, the housing 2 can be moved outward to separate the housing 2 from the bracket 1 and the connecting sleeve 206 from the lifting plate 3. This allows the device to be disassembled and broken down so that it can be stored when not in use, reducing the space occupied by the device during storage.

[0031] Example 4:

[0032] Reference Figures 1-3 The substation partial discharge detection device is basically the same as that in Embodiment 3, but with a further improvement: the upper and lower sides of the connecting sleeve 206 are rotatably connected to the receiving wheel 208 through the support. The receiving wheel 208 rolls on the housing 2. By setting the receiving wheel 208, when the sliding rod 205 moves in the housing 2, the friction between the sliding rod 205 and the guide rod 203 and the housing 2 can be reduced, so that the lifting plate 3 can be lifted and lowered more smoothly.

[0033] The bracket 1 has self-locking casters 101 symmetrically connected to both sides on the side away from the drive motor 104. A protrusion is integrally connected to the lower end of the bracket 1 on the side closer to the drive motor 104. The lower surface of the protrusion is flush with the bottom of the self-locking caster 101. When the device is moved next to the electrical equipment to be tested, the bracket 1 can be placed on the ground so that the self-locking caster 101 and the protrusion are in contact with the ground. Then, the partial discharge detector 4 can be raised to the designated position for testing. After the test is completed, the operator can hold the protrusion and pull the device by the self-locking caster 101 to move it, which effectively improves the flexibility of the device and provides convenience for the operator to move the device.

[0034] The above description is only a preferred embodiment 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 disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model.

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, Also includes: 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 set of moving rods (303). A second tension spring (304) is sleeved on the moving rod (303). 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, characterized in that, 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 lower end of the housing (2) near the support (1). The extension plate (201) is threadedly connected to the housing (2) 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). The lifting plate (3) is threadedly connected to the connecting sleeve (206) 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 wheels (208) via supports, and the receiving wheels (208) roll on the housing (2).

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

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