Medium-voltage outdoor combined current and voltage transformer

Abstract

The utility model provides a medium-voltage outdoor combined current and voltage transformer which comprises a plurality of fixing plates which are arranged at intervals left and right, and a transformer is arranged above the fixing plates and used for circuit connection. The peripheral side face of each fixing plate is provided with a connecting component, the adjacent fixing plates are connected through the connecting components, and the connecting components are used for connecting the adjacent fixing plates. A mounting plate is arranged on the connecting component, a plurality of vertically through fixing holes are formed in the mounting plate, bolts are inserted into the fixing holes, and the bolts and the mounting plate are matched with each other to fix the fixing plate on a fixing source; a lifting plate is fixedly arranged at the bottom of each mutual inductor; the primary sliding rails and the primary sliding grooves on the peripheral side surfaces of the fixing plates can be connected with the mounting plate, and the adjacent fixing plates can be connected with each other, so that the mutual inductor can be singly used, and a plurality of mutual inductors can be combined together for use.

Description

Technical Field

[0001] The utility model relates to the technical field of mutual inductors, in particular to a medium-voltage outdoor combined current and voltage mutual inductor. Background Art

[0002] Outdoor combined current and voltage transformer is a device used for measurement and protection in power systems. It can be installed on outdoor poles or in transmission lines. This type of transformer is usually designed to adapt to harsh external environmental conditions, such as moisture, pollution, etc., so they usually use special insulation materials and technologies to ensure their reliability and stability.

[0003] With the rapid development of the national economy, the construction of the national power grid is also changing with each passing day. We have put forward higher requirements on the quality of the power grid, the measurement and management of electric energy, etc. As one of the important and indispensable equipment in the power grid, the requirements for voltage and current transformers are also getting higher and higher.

[0004] At present, the existing mutual inductors are usually independent or multiple mutual inductors are fixedly connected together. This is inconvenient to combine the independent or multiple mutual inductors that are fixedly connected together for use in some special cases, which limits the scope of use of the device. Utility Model Content

[0005] The purpose of the utility model is to provide a medium-voltage outdoor combined current and voltage transformer, aiming to solve the problem that the existing transformers in the prior art are usually independent or multiple fixedly connected together, which is inconvenient to combine the independent or multiple fixedly connected transformers for use in some special circumstances, thus limiting the scope of use of the device.

[0006] To achieve the above object, the utility model adopts the following technical solution: the medium voltage outdoor combined current and voltage transformer comprises a plurality of fixed plates spaced apart from each other, a transformer is arranged above the fixed plates, and the transformer is used for circuit connection;

[0007] A connecting member is provided on the peripheral side surface of each of the fixing plates, and adjacent fixing plates are connected to each other through the connecting member, and the connecting member is used to connect adjacent fixing plates to each other;

[0008] The connecting member is provided with a mounting plate, and the mounting plate is provided with a plurality of fixing holes which are transparent from top to bottom, and bolts are inserted into the fixing holes, and the bolts cooperate with the mounting plate to mount the fixing plate on the fixed source;

[0009] A lifting plate is fixedly provided at the bottom of each mutual inductor, and a lifting mechanism capable of driving the lifting plate to move up and down is provided above the fixed plate, and the lifting mechanism is used to adjust the height of the mutual inductor.

[0010] Preferably, each of the connecting members comprises a primary slide rail and a primary slide groove, and the primary slide rail and the primary slide groove are both two in number and are extended in the extending direction of the fixed plate;

[0011] The primary slide rails are fixed on the left and front sides of the fixed plate, and the primary slide grooves are opened on the rear and right sides of the fixed plate. The primary slide rails on one of the fixed plates can be detachably slidably inserted into the primary slide grooves on the adjacent fixed plate.

[0012] Preferably, the mounting plate comprises a front mounting plate and a rear mounting plate, and the fixing holes are respectively provided on the front mounting plate and the rear mounting plate;

[0013] The front mounting plate is transmission connected to the main-stage slide rail, and the rear mounting plate is transmission connected to the main-stage slide groove.

[0014] Preferably, a secondary sliding groove opening toward the fixed plate is provided on a side of the front mounting plate facing the fixed plate, and the secondary sliding groove is extended along the extension direction of the front mounting plate;

[0015] The main slide rail is slidably inserted in the slave slide groove, and the main slide rail and the slave slide groove cooperate with each other to connect the front mounting plate and the fixing plate.

[0016] Preferably, a secondary slide rail is fixedly provided on one side of the rear mounting plate facing the fixed plate, and the secondary slide rail is extended along the extension direction of the rear mounting plate;

[0017] The slave slide rail is slidably inserted in the main slide groove, and the slave slide rail and the main slide groove cooperate with each other to connect the rear mounting plate and the fixing plate to each other.

[0018] Preferably, each of the lifting mechanisms comprises a threaded sleeve, a threaded rod and a bevel gear set, and the threaded sleeve, threaded rod and bevel gear set are two in number and are spaced apart from each other.

[0019] The two threaded sleeves are fixed on the top of the fixed plate, the bevel gear sets are rotatably arranged on the top of the threaded sleeves, the threaded insert rod passes through the bevel gear set, is slidably inserted in the threaded sleeves, and is threadedly connected with the inner wall of the bevel gear set;

[0020] A handle is provided on the rear side of the bevel gear set, and a rotating shaft is fixedly provided on the front side of the handle. The rotating shaft is transmission-connected with the two bevel gear sets, and the rotating shaft is used to drive the bevel gear set to rotate. When the bevel gear set rotates, it is used to drive the threaded insert rod to slide along the threaded sleeve.

[0021] Preferably, a plurality of first sleeves spaced apart in a rectangular array are fixedly provided at the bottom of each lifting plate, a plurality of first rods spaced apart in a rectangular array are fixedly provided on the fixed plate, and the first rods are slidably inserted in the first sleeves;

[0022] When the lifting plate moves up and down, it can drive the first sleeve to move up and down along the extension direction of the first sleeve rod.

[0023] Preferably, a support plate is fixedly provided on the outer side walls of the two threaded sleeves on the same side, the support plate is located below the rotating shaft, a plurality of support seats spaced front and back are fixedly provided on the support plate, and the support seats are rotatably mounted on the rotating shaft.

[0024] The beneficial effects are: 1. The main-stage slide rails and main-stage slide grooves on the peripheral side of the fixed plate can be connected to the mounting plate or to each other between adjacent fixed plates, so that the mutual inductor can be used alone or in combination.

[0025] 2. By setting the main slide rail and the main slide groove, adjacent fixed plates can be connected in multiple directions, and the mounting plates can also be connected in multiple directions, thereby improving the diversity of fixed plate connections.

[0026] 3. Under the action of the lifting mechanism, the height of the lifting plate and the transformer can be adjusted to adapt to lines of different heights, so as to better carry out installation and line connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a plurality of mutual inductors used in combination in a specific embodiment of the utility model;

[0028] Figure 2 It is a structural schematic diagram of a single mutual inductor used in a specific embodiment of the utility model;

[0029] Figure 3 It is a structural schematic diagram of the connection between the mounting plate and the fixing plate in a specific embodiment of the utility model;

[0030] Figure 4 In the specific embodiment of the utility model Figure 3 A schematic diagram of the enlarged structure at point A;

[0031] Figure 5 It is a structural schematic diagram of the lifting mechanism in a specific embodiment of the utility model;

[0032] Figure 6 It is a structural schematic diagram of the distribution of secondary slide grooves on the front mounting plate in a specific embodiment of the utility model;

[0033] Figure 7 It is a schematic diagram of the structure in which the secondary slide rails are distributed on the rear mounting plate in a specific embodiment of the utility model.

[0034] In the figure: 1. fixing plate; 2. mutual inductor; 3. connecting member; 301. main slide rail; 302. main slide groove; 4. mounting plate; 401. front mounting plate; 402. rear mounting plate; 5. bolt; 6. lifting plate; 7. lifting mechanism; 701. threaded sleeve; 702. threaded plug rod; 703. bevel gear set; 8. slave slide groove; 9. slave slide rail; 10. handle; 11. rotating shaft; 12. first sleeve; 13. first set of rods; 14. support plate. DETAILED DESCRIPTION

[0035] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings.

[0036] like Figure 1-Figure 7 As shown, a medium-voltage outdoor combined current and voltage transformer, the main-stage slide rail 301 and the main-stage slide groove 302 on the side surface of the fixed plate 1 can be connected to the mounting plate 4 or connected to each other between adjacent fixed plates 1, so that the transformer 2 can be used alone or in combination. Specifically, it includes a plurality of fixed plates 1 spaced apart from each other, and a transformer 2 is arranged above the fixed plate 1. The transformer 2 is used for circuit connection. The setting of the fixed plate 1 makes the transformer 2 not directly installed on the fixed source, so that the firmness of the transformer 2 can be improved, and the transformer 2 can be prevented from tilting or tipping over during use. The setting of the fixed plate 1 can well support the transformer 2.

[0037] A connecting member 3 is provided on the circumferential side surface of each fixing plate 1, and adjacent fixing plates 1 are connected to each other through the connecting member 3. The connecting member 3 is used to connect adjacent fixing plates 1 to each other. Under the action of the connecting member 3, the connection of adjacent fixing plates 1 can be achieved, and the connection of the mounting plate 4 can also be achieved, so that the mutual inductor 2 can be used individually or in combination, thereby improving applicability.

[0038] By setting the main-stage slide rail 301 and the main-stage slide groove 302, adjacent fixed plates 1 can be connected in multiple directions, and the mounting plate 4 can also be connected in multiple directions, thereby improving the diversity of connection of the fixed plate 1. Specifically, each connecting member 3 includes a main-stage slide rail 301 and a main-stage slide groove 302, and there are two main-stage slide rails 301 and two main-stage slide grooves 302, which are extended in the extension direction of the fixed plate 1. Adjacent fixed plates 1 and mounting plates 4 can be installed in the left-right direction as well as in the front-back direction.

[0039] The main slide rail 301 is fixed on the left side and front side of the fixed plate 1, and the main slide groove 302 is opened on the rear side and right side of the fixed plate 1. The main slide rail 301 on one fixed plate 1 can be detachably slid into the main slide groove 302 on the adjacent fixed plate 1. When the mutual inductor 2 is used alone, the mounting plate 4 and the fixed plate 1 can be connected to each other, and then connected to the fixed source to strengthen the fixed plate 1. When multiple mutual inductors 2 are used in combination, the fixed plates 1 can be connected to each other to improve the stability between the multiple mutual inductors 2, so as to achieve the purpose of improving applicability.

[0040] A mounting plate 4 is provided on the connecting member 3, and a plurality of fixing holes which are transparent from top to bottom are opened on the mounting plate 4. Bolts 5 are inserted into the fixing holes. The bolts 5 cooperate with the mounting plate 4 to mount the fixing plate 1 on the fixing source. Through the arrangement of the bolts 5, when the mounting plate 4 and the fixing plate 1 are connected to each other, the bolts 5 can be passed through the fixing holes to connect with the fixing source, so that the fixing plate 1 can be fixed, so as to improve the stability of the fixing plate 1 and improve the use effect of the mutual inductor 2.

[0041] The mounting plate 4 includes a front mounting plate 401 and a rear mounting plate 402 , and fixing holes are respectively provided on the front mounting plate 401 and the rear mounting plate 402 .

[0042] The front mounting plate 401 is transmission-connected to the primary slide rail 301 (the front mounting plate 401 can be installed on the left and front sides of the fixed plate 1 ), and the rear mounting plate 402 is transmission-connected to the primary slide groove 302 (the rear mounting plate 402 can be installed on the rear and right sides of the fixed plate 1 ).

[0043] A secondary sliding groove 8 opening toward the fixed plate 1 is provided on one side of the front mounting plate 401 facing the fixed plate 1 , and the secondary sliding groove 8 is extended along the extending direction of the front mounting plate 401 .

[0044] The main-level slide rail 301 is slidably inserted in the slave-level slide groove 8. The main-level slide rail 301 and the slave-level slide groove 8 cooperate with each other to connect the front mounting plate 401 and the fixed plate 1 to each other. When the front mounting plate 401 needs to be installed, the main-level slide rail 301 on the fixed plate 1 is slidably inserted into the slave-level slide groove 8 on the front mounting plate 401, so that the fixed plate 1 and the front mounting plate 401 can be connected to each other.

[0045] A secondary slide rail 9 is fixedly provided on one side of the rear mounting plate 402 facing the fixed plate 1 , and the secondary slide rail 9 is extended along the extending direction of the rear mounting plate 402 .

[0046] The slave slide rail 9 is slidably inserted into the main slide groove 302, and the slave slide rail 9 and the main slide groove 302 cooperate with each other to connect the rear mounting plate 402 and the fixed plate 1 to each other. When the rear mounting plate 402 needs to be installed, the slave slide rail 9 on the rear mounting plate 402 is slidably inserted into the main slide groove 302 on the fixed plate 1, so that the fixed plate 1 and the rear mounting plate 402 can be connected to each other.

[0047] Since the cross-sectional shapes of the main-level slide groove 302 and the slave-level slide groove 8 are both "convex"-shaped groove structures, and the cross-sectional shapes of the slave-level slide rail 9 and the main-level slide rail 301 are both "convex"-shaped block structures, and the block structure and the groove structure correspond to each other, when the block structure is inserted into the groove structure, there will be no shaking or deviation, thereby improving the stability.

[0048] Under the action of the lifting mechanism 7, the height of the lifting plate 6 and the transformer 2 can be adjusted to adapt to lines of different heights so as to better perform installation and line connection. Specifically, a lifting plate 6 is fixedly provided at the bottom of each transformer 2, and a lifting mechanism 7 capable of driving the lifting plate 6 to move up and down is provided above the fixed plate 1. The lifting mechanism 7 is used to adjust the height of the transformer 2, and the lifting mechanism 7 is driven to start, so that the lifting mechanism 7 can drive the lifting plate 6 to move up and down so as to adjust the height of the transformer 2.

[0049] Each lifting mechanism 7 includes a threaded sleeve 701, a threaded rod 702 and a bevel gear set 703 (the bevel gear set 703 includes a first bevel gear, a bidirectional bevel gear and a second bevel gear. The first bevel gear is rotatably arranged on the top of the threaded sleeve 701, and the second bevel gear is fixed on the rotating shaft 11. The first bevel gear, the bidirectional bevel gear and the second bevel gear are meshed with each other, so they can drive the rotation). There are two threaded sleeves 701, threaded rods 702 and bevel gear sets 703, and they are arranged at intervals in front and back.

[0050] The two threaded sleeves 701 are fixed on the top of the fixed plate 1, and the bevel gear sets 703 are rotatably arranged on the top of the threaded sleeves 701. The threaded rod 702 passes through the bevel gear sets 703 and is slidably inserted into the threaded sleeves 701, and is threadedly connected to the inner wall of the bevel gear sets 703. Since the bevel gear sets 703 are threadedly connected to the bevel gear sets 703, when the bevel gear sets 703 rotate, it can drive the threaded rod 702 to move up and down inside the threaded sleeves 701.

[0051] A handle 10 is provided on the rear side of the bevel gear set 703, and a rotating shaft 11 is fixedly provided on the front side of the handle 10. The handle 10 is manually rotated so that the rotating shaft 11 can be driven to rotate when the handle 10 is rotated. The rotating shaft 11 is transmission-connected with the two bevel gear sets 703. The rotating shaft 11 is used to drive the bevel gear set 703 to rotate. When the bevel gear set 703 rotates, it is used to drive the threaded insert rod 702 to slide along the threaded sleeve 701. When the rotating shaft 11 rotates, it drives the bevel gear set 703 to rotate.

[0052] A plurality of first sleeves 12 arranged in a rectangular array and spaced apart are fixedly provided at the bottom of each lifting plate 6, and a plurality of first rods 13 arranged in a rectangular array and spaced apart are fixedly provided on the fixed plate 1. The first rods 13 are slidably inserted in the first sleeves 12. When the lifting plate 6 is lifted up and down, it can drive the first sleeves 12 to move up and down along the first rods 13. With the mutual cooperation between the first rods 13 and the first sleeves 12, the lifting plate 6 can maintain a stable state during the lifting process.

[0053] When the lifting plate 6 moves up and down, it can drive the first sleeve 12 to move up and down along the extending direction of the first sleeve rod 13 .

[0054] A support plate 14 is fixedly provided on the outer wall of the two threaded sleeves 701 on the same side. The support plate 14 is located below the rotating shaft 11. A plurality of support seats spaced apart front and rear are fixedly provided on the support plate 14. The support seats are rotatably mounted on the rotating shaft 11. The arrangement of the support plate 14 and the support seats can support the rotating shaft 11 and the bevel gear set 703.

[0055] Working principle: When a single mutual inductor 2 is used, the front mounting plate 401 and the rear mounting plate 402 are respectively installed on the fixed plate 1. When the front mounting plate 401 needs to be installed, the main-level slide rail 301 on the fixed plate 1 is slidably inserted into the secondary-level slide groove 8 on the front mounting plate 401, so that the fixed plate 1 and the front mounting plate 401 can be connected to each other. Similarly, when the rear mounting plate 402 needs to be installed, the secondary-level slide rail 9 on the rear mounting plate 402 is slidably inserted into the main-level slide groove 302 on the fixed plate 1, so that the fixed plate 1 and the rear mounting plate 402 can be connected to each other. After the front mounting plate 401 and the rear mounting plate 402 are connected to the fixed plate 1, the bolt 5 can be passed through the fixing hole to connect with the fixing source, so that the fixed plate 1 can be fixed, so as to improve the stability of the fixed plate 1 and improve the use effect of the mutual inductor 2.

[0056] Then, the handle 10 is manually rotated so that the handle 10 can drive the rotating shaft 11 to rotate when it rotates, and the rotating shaft 11 can drive the bevel gear set 703 to rotate when it rotates. Since the bevel gear set 703 is threadedly connected to the bevel gear set 703, when the bevel gear set 703 rotates, it can drive the threaded rod 702 to move up and down along the threaded sleeve 701, so as to drive the lifting plate 6 to move up and down, so as to adjust the height of the transformer 2, and then the transformer 2 can be connected to the line.

[0057] When multiple mutual inductors 2 are used, the front mounting plate 401 and the rear mounting plate 402 are first removed from the fixed plate 1, and then the main slide rail 301 on the fixed plate 1 is inserted into the main slide groove 302 on the adjacent fixed plate 1, so that multiple fixed plates 1 can be connected to each other, and then the front mounting plate 401 and the rear mounting plate 402 are slidably inserted on the fixed plate 1 according to needs, so that the mutual inductor 2 can be used individually or in combination.

[0058] Then, the same operation is performed as above to adjust the height of the lifting plate 6 and the mutual inductor 2 so as to better connect the lines.

[0059] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is limited by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A medium voltage outdoor combined current and voltage transformer, characterized in that: It comprises a plurality of fixed plates (1) spaced apart from each other, wherein a mutual inductor (2) is provided above the fixed plates (1), and the mutual inductor (2) is used for circuit connection; A connecting member (3) is provided on the peripheral side surface of each of the fixing plates (1), and adjacent fixing plates (1) are connected to each other via the connecting member (3), and the connecting member (3) is used to connect adjacent fixing plates (1) to each other; The connecting member (3) is provided with a mounting plate (4), the mounting plate (4) is provided with a plurality of fixing holes which are transparent from top to bottom, bolts (5) are inserted into the fixing holes, and the bolts (5) cooperate with the mounting plate (4) to mount the fixing plate (1) on the fixing source; A lifting plate (6) is fixedly provided at the bottom of each mutual inductor (2), and a lifting mechanism (7) capable of driving the lifting plate (6) to move up and down is provided above the fixed plate (1), wherein the lifting mechanism (7) is used to adjust the height of the mutual inductor (2).

2. A medium voltage outdoor combined current and voltage transformer according to claim 1, characterized in that: Each of the connecting components (3) comprises a primary slide rail (301) and a primary slide groove (302), wherein the primary slide rail (301) and the primary slide groove (302) are both two in number and are arranged to extend in the direction in which the fixed plate (1) extends; The primary slide rail (301) is fixedly arranged on the left side and the front side of the fixed plate (1), and the primary slide groove (302) is opened on the rear side and the right side of the fixed plate (1), wherein the primary slide rail (301) on one of the fixed plates (1) can be detachably slidably inserted into the primary slide groove (302) on the adjacent fixed plate (1).

3. A medium voltage outdoor combined current and voltage transformer according to claim 2, characterized in that: The mounting plate (4) comprises a front mounting plate (401) and a rear mounting plate (402), and the fixing holes are respectively provided on the front mounting plate (401) and the rear mounting plate (402); The front mounting plate (401) is transmission-connected to the primary slide rail (301), and the rear mounting plate (402) is transmission-connected to the primary slide groove (302).

4. A medium voltage outdoor combined current and voltage transformer according to claim 3, characterized in that: A secondary sliding groove (8) with an opening facing the fixed plate (1) is provided on a side of the front mounting plate (401) facing the fixed plate (1), and the secondary sliding groove (8) is extended along an extension direction of the front mounting plate (401); The primary slide rail (301) is slidably inserted into the secondary slide groove (8), and the primary slide rail (301) and the secondary slide groove (8) cooperate with each other to connect the front mounting plate (401) and the fixing plate (1) to each other.

5. A medium voltage outdoor combined current and voltage transformer according to claim 3, characterized in that: A secondary slide rail (9) is fixedly provided on one side of the rear mounting plate (402) facing the fixed plate (1), and the secondary slide rail (9) is extended along the extension direction of the rear mounting plate (402); The secondary slide rail (9) is slidably inserted in the primary slide groove (302), and the secondary slide rail (9) and the primary slide groove (302) cooperate with each other to connect the rear mounting plate (402) and the fixing plate (1) to each other.

6. A medium voltage outdoor combined current and voltage transformer according to claim 1, characterized in that: Each of the lifting mechanisms (7) comprises a threaded sleeve (701), a threaded rod (702) and a bevel gear set (703), wherein the threaded sleeve (701), the threaded rod (702) and the bevel gear set (703) are each two in number and are spaced apart from each other. The two threaded sleeves (701) are fixedly mounted on the top of the fixed plate (1); the bevel gear sets (703) are rotatably mounted on the top of the threaded sleeves (701); the threaded insert rod (702) passes through the bevel gear sets (703), is slidably inserted into the threaded sleeves (701), and is threadedly connected to the inner wall of the bevel gear sets (703); A handle (10) is provided on the rear side of the bevel gear set (703), and a rotating shaft (11) is fixedly provided on the front side of the handle (10). The rotating shaft (11) is transmission-connected to the two bevel gear sets (703). The rotating shaft (11) is used to drive the bevel gear set (703) to rotate. When the bevel gear set (703) rotates, it is used to drive the threaded insert rod (702) to slide along the threaded sleeve (701).

7. A medium voltage outdoor combined current and voltage transformer according to claim 6, characterized in that: A plurality of first sleeves (12) arranged at intervals in a rectangular array are fixedly provided at the bottom of each lifting plate (6); a plurality of first rods (13) arranged at intervals in a rectangular array are fixedly provided on the fixed plate (1); the first rods (13) are slidably inserted in the first sleeves (12); When the lifting plate (6) moves up and down, it can drive the first sleeve (12) to move up and down along the extension direction of the first sleeve rod (13).

8. A medium voltage outdoor combined current and voltage transformer according to claim 6, characterized in that: A support plate (14) is fixedly provided on the outer side walls of the two threaded sleeves (701) on the same side. The support plate (14) is located below the rotating shaft (11). A plurality of support seats spaced apart from each other are fixedly provided on the support plate (14). The support seats are rotatably mounted on the rotating shaft (11).

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