Three-phase 6 / 10KV dual-power self-adaptive voltage transformer

Abstract

The utility model relates to the technical field of dual-power switching, in particular to a three-phase 6 / 10KV dual-power self-adaptive voltage transformer. The switching device comprises a mounting seat and a switching device assembled on the mounting seat, wherein the switching device comprises a dual-power controller positioned in the middle, and a mutual inductor I and a mutual inductor II which are symmetrically arranged on two sides of the dual-power controller; the dual-power-supply controller comprises a control box, a terminal board located on the outer side of the control box and a control board located in the control box. The input end of the control board is connected with a 6KV power supply and a 10KV power supply through terminal boards, and the output end of the control board is connected with a 220V load through a mutual inductor I and connected with a 100V load through a mutual inductor II. According to the utility model, self-adaptive switching and power supply from a 6 / 10KV power supply to 220V and 100V loads are realized, the requirements of loads of different voltage levels are flexibly met, and the automation degree of power supply switching and the reliability of power supply are improved.

Description

Technical Field

[0001] This utility model relates to the field of dual power supply switching technology, specifically to a three-phase 6 / 10KV dual power supply adaptive voltage transformer. Background Technology

[0002] In power systems, the diversification of electrical equipment leads to increasingly diverse demands for power supply voltage. Traditional dual-power switching devices are limited by specific voltage levels, making it difficult to meet the flexible power supply needs of diverse loads. Especially in 6kV and 10kV high-voltage power systems, achieving efficient and reliable power switching and adapting to loads of different voltage levels has become a critical issue that urgently needs to be addressed. To solve this problem, engineers have made many attempts, such as the substation dual-power AC power supply cabinet disclosed in Chinese patent CN209313519U. Although it has some innovations in the configuration of current transformers, it still has limitations: it is only applicable to specific voltage levels and lacks flexibility; it relies on manual or simple mechanical switches, resulting in low switching efficiency and a high risk of errors; power outages or voltage fluctuations during switching affect power supply stability. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a three-phase 6 / 10KV dual-power adaptive voltage transformer.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A three-phase 6 / 10kV dual-power adaptive voltage transformer includes a mounting base and a switching device mounted on the mounting base. The switching device includes a dual-power controller located in the middle, and transformer I and transformer II symmetrically arranged on both sides of the dual-power controller, wherein:

[0006] The dual power supply controller includes a control box, a terminal block located outside the control box, and a control board located inside the control box. The input terminals of the control board are connected to a 6KV power supply and a 10KV power supply respectively through the terminal block. The output terminals of the control board are connected to a 220V load through current transformer I and a 100V load through current transformer II.

[0007] Transformer I is a 220V voltage transformer, which is connected to a 220V load and transformer II respectively, and is used to switch 6 / 10KV to 220V power output;

[0008] Transformer II is a 100V voltage transformer used to switch 220V power supply to 100V power output.

[0009] The technical scheme realizes adaptive switching and power supply of 6 / 10KV power supply to 220V and 100V load, so that the demand of different voltage grade load is more flexibly met, and the automation degree of power switching and the reliability of power supply are improved.

[0010] In addition, the three-phase 6 / 10KV dual-power adaptive voltage transformer has the following additional technical features according to the above-mentioned utility model:

[0011] According to one embodiment of the utility model, the control board comprises a control chip, an isolation chip and a switching circuit, the control chip is connected with the switching circuit through the isolation chip, and the isolation chip adopts photoelectric isolation.

[0012] The technical scheme ensures that the control board realizes the power switching function in a safe and isolated environment through the control chip, the isolation chip (photoelectric isolation) and the switching circuit.

[0013] According to one embodiment of the utility model, the control box is further provided with an indicating lamp, and the indicating lamp is used for indicating the connection state of the 6KV power supply and the 10KV power supply.

[0014] The technical scheme directly indicates the connection state of the 6KV power supply and the 10KV power supply on the control box through the indicating lamp, so that the user can monitor the power state.

[0015] According to one embodiment of the utility model, the mounting seat is further provided with a cooling fan and a cooling fin, the cooling fan is mounted outside the control box, and the cooling fin is arranged close to the control board.

[0016] The technical scheme effectively enhances the heat dissipation effect of the control board by mounting the cooling fan and the cooling fin on the mounting seat, so that the stable operation of the device is ensured.

[0017] According to one embodiment of the utility model, the mounting seat bottom is additionally provided with a shock-absorbing foot pad made of high-elasticity material.

[0018] The technical scheme reduces the influence of external vibration on internal elements of the device and improves the stability of the device by providing the shock-absorbing foot pad made of high-elasticity material at the bottom of the mounting seat.

[0019] According to one embodiment of the utility model, the switching device further comprises a manual switching knob for manually selecting 6KV power supply or 10KV power supply for power supply.

[0020] The technical scheme allows the user to manually select 6KV power supply or 10KV power supply for power supply by adding the manual switching knob, thereby increasing the flexibility of power supply switching and emergency handling capacity.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] The dual-power controller and the two voltage transformers are used to realize adaptive switching and power supply of 6 / 10KV power supply to 220V and 100V load, flexibly meet the needs of different voltage grade loads, and improve the automation degree of power supply switching and the reliability of power supply. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is the structural schematic diagram of the utility model.

[0024] Figure 2 is the electrical connection block diagram of the utility model.

[0025] In the figure: 1, mounting seat; 2, dual-power controller; 3, terminal plate; 4, 10KV power supply; 5, 6KV power supply; 6, transformer I; 7, transformer II. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] Embodiment 1

[0028] As Figure 1 And Figure 2As shown in the embodiment, the three-phase 6 / 10KV dual-power self-adaptive voltage transformer comprises a mounting seat 1, a switching device assembled on the mounting seat 1, a dual-power controller 2 located in the middle of the switching device, and a transformer I 6 and a transformer II 7 symmetrically arranged on both sides of the dual-power controller 2, wherein:

[0029] The dual-power controller 2 comprises a control box, a terminal plate 3 located outside the control box, and a control panel located inside the control box; the input end of the control panel is connected with a 6KV power supply 5 and a 10KV power supply 4 through the terminal plate 3, and the output end of the control panel is connected with a 220V load through the transformer I 6 and connected with a 100V load through the transformer II 7.

[0030] The transformer I 6 is a 220V voltage transformer, which is connected with the 220V load and the transformer II 7, and is used for switching the 6 / 10KV to a 220V power supply output.

[0031] The transformer II 7 is a 100V voltage transformer, which is used for switching the 220V power supply to a 100V power supply output.

[0032] As shown in the embodiment, Figure 1 and Figure 2 The technical scheme comprises the following beneficial effects: the dual-power controller 2, the 220V voltage transformer I 6 and the 100V voltage transformer II 7 are used to realize the self-adaptive switching and power supply of the 6 / 10KV power supply 4 to the 220V and 100V loads, so that the demand of different voltage grade loads can be more flexibly met, and the automation degree of power switching and the reliability of power supply are improved. Specifically, the dual-power controller 2 receives the input from the two high-voltage power supplies of 6KV and 10KV, and selects one or both of the power supplies for power supply according to the demand; the control panel can receive the input signal from the high-voltage power supply through the terminal plate 3; the transformer I 6 and the transformer II 7 play a role in voltage transformation; the transformer I 6 is a 220V voltage transformer, which converts the high-voltage power supply of 6KV or 10KV into a low-voltage power supply of 220V for output, so as to meet the demand of certain specific load; the transformer II 7 is a 100V voltage transformer, which converts the power supply of 220V into a power supply of 100V for output, so as to adapt to the demand of other low-voltage loads; the electromagnetic coupling of the transformer is used to transfer the energy of the high-voltage power supply to the low-voltage side, while realizing the reduction of voltage; the device also has overcurrent protection, short circuit protection and fault alarm, so as to ensure that the device can quickly cut off the power supply in abnormal conditions and protect the safety of the equipment.

[0033] In addition, the three-phase 6 / 10KV dual-power self-adaptive voltage transformer has the following additional technical features according to the above-mentioned embodiment:

[0034] According to one embodiment of the utility model, the control panel comprises a control chip, an isolation chip and a switching circuit, the control chip is connected with the switching circuit through the isolation chip, and the isolation chip adopts photoelectric isolation.

[0035] The technical scheme ensures the power switching function of the control panel in a safe and isolated environment through the control chip, the isolation chip (photoelectric isolation) and the switching circuit.

[0036] According to one embodiment of the utility model, the control box is further provided with an indicating lamp, and the indicating lamp is used for indicating the connection state of the 6KV power supply 5 and the 10KV power supply 4.

[0037] The technical scheme directly indicates the connection state of the 6KV power supply 5 and the 10KV power supply 4 on the control box through the indicating lamp, so that the user can monitor the power state.

[0038] According to one embodiment of the utility model, the mounting seat 1 is further provided with a heat dissipation fan and a heat dissipation fin, the heat dissipation fan is installed outside the control box, and the heat dissipation fin is close to the control panel.

[0039] The technical scheme effectively enhances the heat dissipation effect of the control panel by installing the heat dissipation fan and the heat dissipation fin on the mounting seat 1, so that the device can stably operate.

[0040] According to one embodiment of the utility model, the mounting seat 1 is further provided with a damping foot pad at the bottom, and the damping foot pad is made of high-elasticity material.

[0041] The technical scheme reduces the influence of external vibration on internal elements of the device and improves the stability of the device by equipping the mounting seat 1 with the damping foot pad made of high-elasticity material at the bottom.

[0042] According to one embodiment of the utility model, the switching device further comprises a manual switching knob, and the user can manually select the 6KV power supply 5 or the 10KV power supply 4 for power supply.

[0043] The technical scheme allows the user to manually select the 6KV power supply 5 or the 10KV power supply 4 for power supply by adding the manual switching knob, so that the flexibility of power switching and the emergency processing capacity are increased.

[0044] The use process of the above embodiment is as follows:

[0045] As Figure 1 and Figure 2As shown, the device receives input from two high-voltage power sources, 6KV and 10KV, through the dual power controller 2; the control chip on the control board selects the appropriate power supply for powering based on pre-set logic, and ensures safety isolation through the isolation chip; the indicator lights on the control box visually display the connection status of the 6KV and 10KV power sources 4; after the selected power source, the voltage conversion process begins; the transformer I 6, as a 220V voltage transformer, converts the selected high-voltage power supply into a 220V low-voltage power supply output to meet the specific load requirements; the transformer II 7, as a 100V voltage transformer, converts the 220V power supply into a 100V power supply output to adapt to other low-voltage loads; this conversion process utilizes the electromagnetic coupling effect of the transformer to efficiently transfer energy and reduce voltage; to ensure stable operation of the device, the heat dissipation fan and heat sink on the mounting base 1 effectively dissipate heat, keeping the control board temperature within a safe range; the shock-absorbing foot pads made of high-elasticity material reduce the impact of external vibrations on the internal components of the device, improving stability; the device also has a manual switching knob that allows users to manually select the 6KV or 10KV power source 4 for powering in emergency situations, increasing the flexibility of power switching and emergency handling capabilities; overcurrent protection, short-circuit protection, and fault alarm functions ensure that the device can quickly cut off the power supply in abnormal situations to protect the equipment.

[0046] Although the utility model is described in detail by referring to the attached drawings and in combination with the preferred embodiments, the utility model is not limited thereto. Without departing from the spirit and essence of the utility model, those skilled in the art can make various equivalent modifications or replacements to the embodiments of the utility model, and these modifications or replacements should be within the scope of the utility model. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered within the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. A three-phase 6 / 10KV dual power self-adapting voltage transformer, characterized in that, The utility model relates to a double power supply switching device, comprising a mounting base (1) and a switching device assembled on the mounting base (1), the switching device comprising a double power supply controller (2) in the middle, a transformer I (6) and a transformer II (7) symmetrically arranged on both sides of the double power supply controller (2), wherein: The double power supply controller (2) comprises a control box, a terminal board (3) outside the control box and a control board inside the control box; the input end of the control board is connected with a 6KV power supply (5) and a 10KV power supply (4) through the terminal board (3) respectively, and the output end of the control board is connected with a 220V load through the transformer I (6) and a 100V load through the transformer II (7) respectively; The transformer I (6) is a 220V voltage transformer connected with the 220V load and the transformer II (7) respectively, and is used for switching 6 / 10KV to 220V power supply output; The transformer II (7) is a 100V voltage transformer used for switching 220V power supply to 100V power supply output.

2. The three-phase 6 / 10KV dual power self-adapting voltage transformer according to claim 1, characterized in that, The control board comprises a control chip, an isolation chip and a switching circuit, the control chip is connected with the switching circuit through the isolation chip, and the isolation chip adopts photoelectric isolation.

3. The three-phase 6 / 10KV dual power self-adapting voltage transformer according to claim 1, characterized in that, The control box is further provided with an indicating lamp, which is used for indicating the connection state of the 6KV power supply (5) and the 10KV power supply (4).

4. The three-phase 6 / 10KV dual supply self-adapting voltage transformer according to claim 1, characterized in that, The mounting base (1) is further provided with a heat dissipation fan and a heat dissipation fin, the heat dissipation fan is installed outside the control box, and the heat dissipation fin is arranged close to the control board.

5. The three-phase 6 / 10KV dual supply self-adapting voltage transformer according to claim 1, characterized in that, The bottom of the mounting base (1) is further provided with a shock-absorbing foot pad made of high-elasticity material.

6. The three-phase 6 / 10KV dual supply self-adapting voltage transformer of claim 1, wherein, The switching device further comprises a manual switching knob, which is used for manually selecting the 6KV power supply (5) or the 10KV power supply (4) for power supply.

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