Transformer primary side wiring device
By using conductive connection copper bars and support devices on the primary side of the transformer, the problem of cables being easily damaged in high and low temperature environments is solved, the stability and safety of current carrying capacity are improved, and the maintenance process is simplified.
Patent Information
- Application Number
- CN202421795667.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-26
AI Technical Summary
The cable connections on the primary side of the existing transformer are easily damaged in high and low temperature environments, resulting in a decrease in current carrying capacity, pose safety hazards, and affecting the stable operation of the equipment.
The conductive copper bar is used to replace the traditional cable, and is fixed by supporting devices and insulators. A wire clamp is installed to fix the power cable, and a protective device is provided to prevent unconscious access.
It ensures the stable current carrying capacity at the connection, reduces safety risks, simplifies the maintenance process, and improves the stable operation and convenience of equipment.
Smart Images
Figure CN222914533U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrical connection, in particular to a primary side wiring device for a transformer. Background Art
[0002] A transformer consists of an iron core (or magnetic core) and coils. The coils have two or more windings, and the winding connected to the power supply is called the primary coil, also known as the primary side.
[0003] Currently, most transformers in the factory are equipped with disconnectors on the primary side. The connection method from the disconnector to the primary side of the transformer usually uses cable connection. The current-carrying capacity of the cable conductors is greatly affected by the ambient temperature. In high-temperature and low-temperature weather, it is easy to cause external damage, thereby reducing the current-carrying capacity, posing a safety hazard, and affecting the stable operation of the transformer. Summary of the Utility Model
[0004] The technical problem to be solved by the utility model is to provide a primary side wiring device for a transformer aiming at the above deficiencies of the prior art, which can ensure the current-carrying capacity at the connection, ensure the normal operation of the equipment, reduce safety hazards at the same time, and has the characteristics of convenient use and strong practicability.
[0005] The technical solution adopted by the utility model is: a primary side wiring device for a transformer, including a support device. One side of the support device is installed on the wall. There are multiple insulators at the upper end of the support device. Each insulator is provided with a conductive connection copper bar. One end of the conductive connection copper bar is connected to the wiring terminal of the transformer, and one end of the conductive connection copper bar is connected to the power cable. The power cable is fixedly connected to the support device. A protection device for protection is provided on one side of the support device.
[0006] As a further improvement, the support device includes a support frame, a cross bar, and a wire clamp. The support frame is installed on the wall through expansion screws. The cross bar is installed on the support frame. The insulators are installed on the cross bar. The wire clamp is installed below the support frame. The power cable is fixed on the support frame through the wire clamp.
[0007] Further, the conductive connection copper bar is arranged in an inclined shape. The highest end of the conductive connection copper bar is connected to the insulator, and the lowest end of the conductive connection copper bar is connected to the transformer.
[0008] Further, one end of the conductive connection copper bar is provided with a first screw hole. The wiring terminal of the transformer passes through the first screw hole and is threadedly connected to a nut.
[0009] Further, the other end of the conductive connection copper bar is provided with a second screw hole and a third screw hole. The bolt head of the insulator passes through the second screw hole and is threadedly connected to a nut. The conductive connection copper bar is connected to the power cable through a galvanized bolt passing through the third screw hole.
[0010] Further, the protection device includes an insulating door frame and an insulating net. The insulating door frame is rotatably connected to the support device through a hinge, and the insulating net is arranged inside the insulating door frame.
[0011] Further, a heat shrinkable tube for preventing dust accumulation is sleeved on the outer surface of the conductive connection copper bar.
[0012] Beneficial effects
[0013] Compared with the prior art, the present utility model has the following advantages:
[0014] For the primary side wiring device of a transformer of the present utility model, by using a conductive connection copper bar to replace the traditional cable, the conductive connection copper bar will not be affected by temperature changes and affect the current-carrying capacity, thus ensuring the stable operation of the equipment. By setting the support device and the insulator, multiple conductive connection copper bars can be orderly installed and fixed on the support frame, and the insulator plays the role of isolating electricity. By setting the wire clamp, the power cable can be installed and fixed on the support frame, which is convenient for connection with the conductive connection copper bar. By providing multiple screw holes on the conductive connection copper bar, it is beneficial to the installation and connection of the conductive connection copper bar. By setting the protection device, when protection is needed, only the insulating door frame needs to be closed, and under the action of the insulating net, the harm caused by unconscious approach can be effectively prevented. This connection is simple, has good conductivity, few failure rates, is convenient for maintenance, ensures the stable operation of the transformer, and has the characteristics of convenient use and wide application range. Description of the drawings
[0015] Figure 1 It is the front view structural schematic diagram of the present utility model;
[0016] Figure 2 It is the enlarged top view structural schematic diagram of the conductive connection copper bar in the present utility model.
[0017] Wherein: 1 - support device, 2 - protection device, 3 - insulator, 4 - conductive connection copper bar, 5 - transformer, 6 - power cable, 7 - first screw hole, 8 - second screw hole, 9 - third screw hole, 11 - support frame, 12 - wire clamp, 13 - cross bar, 21 - insulating net, 22 - insulating door frame. Specific embodiments
[0018] The following further describes the present utility model with reference to specific embodiments in the drawings.
[0019] Refer to Figure 1-2As shown, a transformer primary-side wiring device of the utility model comprises a supporting device 1, one side of the supporting device 1 is mounted on a wall, a plurality of insulators 3 are mounted on the upper end of the supporting device 1, each insulator 3 is provided with a conductive connection copper bar 4, one end of the conductive connection copper bar 4 is connected to a terminal of a transformer 5, one end of the conductive connection copper bar 4 is connected to a power cable 6, the power cable 6 is connected and fixed to the supporting device 1, a protective device 2 for protection is provided on one side of the supporting device 1, by adopting the conductive connection copper bar 4 to replace the traditional cable, the conductive connection copper bar 4 will not be affected by the change of temperature to affect the current carrying capacity, thereby ensuring the stable operation of the equipment, by setting the supporting device 1 and insulator 3, so that multiple conductive connection copper bars 4 can be installed and fixed on the support frame 11 in an orderly manner, the insulator 3 plays the role of isolating electricity, and by arranging the wire clamp 12, the power cable 6 can be installed and fixed on the support frame 11, which is convenient for connecting with the conductive connection copper bar 4. By arranging multiple screw holes on the conductive connection copper bar 4, it is beneficial to the installation and connection of the conductive connection copper bar 4. By arranging the protective device 2, when protection is needed, it is only necessary to close the insulating door frame 22. Under the action of the insulating net 21, the harm caused by unintentional approach is effectively prevented. This connection is simple, has good conductivity, low failure rate, is convenient for maintenance, and ensures stable operation of the transformer.
[0020] Specifically, the supporting device 1 includes a supporting frame 11, a cross bar 13 and a wire clamp 12. The supporting frame 11 is installed on the wall by expansion screws, the cross bar 13 is installed on the supporting frame 11, the insulator 3 is installed on the cross bar 13, the wire clamp 12 is installed under the supporting frame 11, and the power cable 6 is fixed to the supporting frame 11 by the wire clamp 12. The supporting frame 11 is made of channel steel and angle steel. The supporting frame 11 mainly fixes the power cable 6, installs the insulator 3, and fixes the conductive connecting copper bus 4, so as to facilitate the connection between the power cable 6 and the conductive connecting copper bus 4.
[0021] Preferably, the conductive copper busbar 4 is arranged in an inclined shape, with the highest end of the conductive copper busbar 4 connected to the insulator 3 and the lowest end of the conductive copper busbar 4 connected to the transformer 5, so that the connection point is located at a high position to avoid being easily touched, and the safety performance is higher.
[0022] Furthermore, a first screw hole 7 is provided at one end of the conductive copper busbar 4 , and the terminal of the transformer 5 passes through the first screw hole 7 and is threadedly connected with a nut, so as to facilitate the installation and connection of the conductive copper busbar 4 .
[0023] Furthermore, a second screw hole 8 and a third screw hole 9 are provided at the other end of the conductive copper busbar 4. The bolt head of the insulator 3 passes through the second screw hole 8 to fix the conductive copper busbar 4, so that one end of the conductive copper busbar 4 can be quickly fixed through the insulator 3. The insulator 3 plays a role in isolating electricity. The conductive copper busbar 4 is connected to the power cable by passing through the third screw hole 9 with a galvanized bolt, and mainly plays a role in connecting the power supply.
[0024] Further, the protection device 2 includes an insulating door frame 22 and an insulating net 21. The insulating door frame 22 is rotatably connected to the support device 1 through a hinge. The insulating net 21 is arranged inside the insulating door frame 22. The insulating door frame 22 is supported by fiberglass material, and the insulating net 21 is woven with cloth ropes. Both have good insulating properties. When protection is needed, only the insulating door frame 22 needs to be closed. Under the action of the insulating net 21, the harm caused by unconscious approach can be effectively prevented.
[0025] Further, a heat shrinkable tube for preventing dust accumulation is sleeved on the outer surface of the conductive connection copper bar 4. The colors of the heat shrinkable tubes on each conductive connection copper bar 4 are different, mainly used to distinguish the phase sequence. The heat shrinkable tube plays a role in preventing dust accumulation on the conductive connection copper bar, thereby ensuring the conductive performance of the conductive connection copper bar 4.
[0026] When the primary side wiring device of a transformer in this embodiment is in use, by using the conductive connection copper bar 4 to replace the traditional cable, the conductive connection copper bar 4 will not be affected by temperature changes and affect the current-carrying capacity, thereby ensuring the stable operation of the equipment and avoiding the occurrence of safety accidents. By setting the support device 1 and the insulator 3, multiple conductive connection copper bars 4 can be orderly installed and fixed on the support frame 11. The insulator 3 plays a role in isolating electricity. By setting the wire clamp 12, the power cable 6 can be installed and fixed on the support frame 11, which is convenient for connection with the conductive connection copper bar 4. By providing a plurality of screw holes on the conductive connection copper bar 4, it is beneficial to the installation and connection of the conductive connection copper bar 4. By setting the protection device 2, when protection is needed, only the insulating door frame 22 needs to be closed. Under the action of the insulating net 21, the harm caused by unconscious approach can be effectively prevented. This connection is simple, has a good conduction rate, few failure rates, is convenient for maintenance, and ensures the stable operation of the transformer. A primary side wiring device of a transformer of the present utility model ensures the current-carrying capacity at the connection, ensures the normal operation of the equipment, and at the same time reduces potential safety hazards, and has the characteristics of convenient use and strong practicability.
[0027] The above are only the preferred embodiments of the present utility model. It should be pointed out that for those skilled in the art, without departing from the structure of the present utility model, several deformations and improvements can still be made, and these will not affect the implementation effect of the present utility model and the practicability of the patent.
Claims
1. A transformer primary side connection device, characterized in that: The invention comprises a supporting device (1), one side of which is mounted on a wall, a plurality of insulators (3) are provided on the upper end of the supporting device (1), each of which is provided with a conductive copper bar (4), one end of which is connected to a terminal of a transformer (5), one end of which is connected to a power cable (6), and the power cable (6) is connected and fixed to the supporting device (1), and a protective device (2) for protection is provided on one side of the supporting device (1).
2. A transformer primary side connection device according to claim 1, characterized in that: The support device (1) comprises a support frame (11), a cross bar (13) and a wire clamp (12); the support frame (11) is mounted on a wall via expansion screws; the cross bar (13) is mounted on the support frame (11); the insulator (3) is mounted on the cross bar (13); the wire clamp (12) is mounted below the support frame (11); and the power cable (6) is fixed to the support frame (11) via the wire clamp (12).
3. A transformer primary side connection device according to claim 1, characterized in that: The conductive copper bar (4) is arranged in an inclined shape, the highest end of the conductive copper bar (4) is connected to the insulator (3), and the lowest end of the conductive copper bar (4) is connected to the transformer (5).
4. A transformer primary side connection device according to claim 1, characterized in that: A first screw hole (7) is provided at one end of the conductive connection copper bar (4), and the terminal of the transformer (5) passes through the first screw hole (7) and is threadedly connected to a nut.
5. A transformer primary side connection device according to claim 4, characterized in that: The other end of the conductive copper bar (4) is provided with a second screw hole (8) and a third screw hole (9); the bolt head of the insulator (3) passes through the second screw hole (8) to fix the conductive copper bar (4); and the conductive copper bar (4) is connected to the power cable by a galvanized bolt passing through the third screw hole (9).
6. A transformer primary side connection device according to claim 1, characterized in that: The protective device (2) comprises an insulating door frame (22) and an insulating net (21); the insulating door frame (22) is rotatably connected to the supporting device (1) via a hinge; and the insulating net (21) is arranged inside the insulating door frame (22).
7. A transformer primary side connection device according to claim 1, characterized in that: The outer surface of the conductive connecting copper bar (4) is sheathed with a layer of heat shrink tube for preventing dust accumulation.