High-voltage integrated cabinet

Abstract

The utility model discloses a high-voltage integrated cabinet, which comprises a first cabinet body, a wire inlet unit, a conversion unit, a protection unit and a power utilization unit, wherein the wire inlet unit, the conversion unit, the protection unit and the power utilization unit are all arranged in the first cabinet body; the wire inlet unit is suitable for transmitting a high-voltage power supply to the conversion unit; the conversion unit comprises a voltage transformer with a built-in fuse, and the voltage transformer is suitable for generating a low-voltage signal corresponding to the high-voltage power supply and transmitting the low-voltage signal to the power utilization unit; the protection unit comprises a fuse which is suitable for cutting off a first path when the first current exceeds a current threshold value, and the first path is a path between the voltage transformer with the built-in fuse wire and the power utilization unit. According to the high-voltage integrated cabinet, the wire inlet unit, the conversion unit, the protection unit and the power utilization unit are integrated into one cabinet body, so that the conversion and use of voltage can be completed by only one high-voltage integrated cabinet, the functions of the high-voltage cabinet are increased, the requirement on the space size of an installation site is reduced, and the production cost is also reduced.

Description

Technical Field

[0001] The present application relates to the field of high voltage electricity, and in particular to a high voltage integrated cabinet. Background Art

[0002] PT cabinet, also known as voltage transformer cabinet, can provide measurement voltage, instrument voltage and protection voltage in the electrical system; provide measurement voltage for power meter; provide operation and control power for related equipment and meet the needs of relay protection of electrical system.

[0003] In the power distribution system industry, external equipment is required to detect and protect the PT cabinet circuits, and it is also unable to accommodate electrical equipment, meaning that the PT cabinet has very limited functions. Summary of the invention

[0004] The technical problem to be solved by the utility model is that the existing PT cabinet has fewer functions.

[0005] A high-voltage integrated cabinet comprises: a first cabinet, an incoming line unit, a conversion unit, a protection unit and a power consumption unit. The incoming line unit, the conversion unit, the protection unit and the power consumption unit are all placed in the first cabinet. The incoming line unit connects a high-voltage power supply and the conversion unit, and the incoming line unit is suitable for transmitting the high-voltage power supply to the conversion unit. The conversion unit comprises: a voltage transformer with a built-in fuse, and the voltage transformer with a built-in fuse is suitable for generating a low-voltage signal corresponding to the high-voltage power supply, and transmitting the low-voltage signal to the power consumption unit.

[0006] The protection unit includes: a fuse, which is connected to the conversion unit, and is suitable for cutting off a first path when a first current exceeds a current threshold, the first current is the current between the voltage transformer with the built-in fuse and the power consumption unit, and the first path is the path between the voltage transformer with the built-in fuse and the power consumption unit.

[0007] Optionally, there are two voltage transformers with built-in fuses, and a V / V connection mode is adopted between the two voltage transformers with built-in fuses.

[0008] Optionally, the protection unit further includes: a circuit breaker. The circuit breaker is connected to the fuse and the power consumption unit, and is suitable for cutting off the first path when a short circuit or overload occurs in the first path.

[0009] Optionally, the protection unit further includes: a grounding protection component. The grounding protection component is connected to the conversion unit.

[0010] Optionally, the power consumption unit includes: a multi-function meter and a controller. The multi-function meter is connected to the protection unit and the controller, and is suitable for generating a first current signal corresponding to the first current and a first voltage signal corresponding to the first voltage, and transmitting them to the controller, wherein the first voltage is the voltage between the voltage transformer with the built-in fuse and the power consumption unit. Both the first current signal and the first voltage signal are analog signals. The controller is suitable for converting the first current signal into a first digital signal and converting the first voltage signal into a second digital signal.

[0011] Optionally, the high-voltage integrated cabinet further includes: a display unit. The display unit is disposed in or on the first cabinet, connected to the controller, and is suitable for displaying the current and voltage of the first path according to the first digital signal and the second digital signal.

[0012] Optionally, the controller is further adapted to generate an alarm signal when the first digital signal exceeds the current threshold or when the second digital signal exceeds the voltage threshold.

[0013] Optionally, the power unit further includes an alarm component. The alarm component is connected to the controller and the display unit, and is adapted to generate an alarm reminder according to the alarm signal. The alarm reminder includes an icon, a speaker, and an LED flash light.

[0014] Optionally, the incoming line unit includes: a busbar and a silicone cable. The busbar connects the high-voltage power supply and the silicone cable. The silicone cable connects the conversion unit and is suitable for transmitting the high-voltage power supply to the conversion unit.

[0015] Optionally, the high-voltage integrated cabinet further includes a second cabinet, wherein the incoming line unit and the conversion unit are placed in the second cabinet, and the second cabinet is placed in the first cabinet.

[0016] Due to the adoption of the above-mentioned technical scheme, the utility model has the following beneficial effects compared with the prior art: the application realizes the high integration of the high-voltage cabinet by integrating the incoming line unit, the conversion unit, the protection unit and the power consumption unit into one high-voltage cabinet. Only one high-voltage cabinet is needed to complete the voltage conversion, use and circuit protection, which increases the function of the high-voltage cabinet, reduces the requirements for the space size of the distribution room, and also reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present application will become easily understood. In the accompanying drawings, several embodiments of the present application are shown in an exemplary and non-restrictive manner, and the same or corresponding numbers represent the same or corresponding parts.

[0018] Figure 1 This is a partial circuit structure block diagram of a high-voltage integrated cabinet according to an embodiment of the present application;

[0019] Figure 2 This is a partial structural block diagram of a high-voltage integrated cabinet according to an embodiment of the present application;

[0020] Figure 3 This is another structural block diagram of a high-voltage integrated cabinet according to an embodiment of the present application.

[0021] Description of Figure Numbers:

[0022] 1. Incoming line unit; 11. Busbar; 12. Silicone cable; 2. Conversion unit; 3. Protection unit; 31. Fuse; 32. Circuit breaker; 33. Grounding protection assembly; 4. Power consumption unit; 41. Multi-function meter; 42. Controller; 5. Display unit; 6. First cabinet; 7. Second cabinet. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0024] It should be understood that when the terms "first", "second", etc. are used in the claims, specification and drawings of the present application, they are only used to distinguish different objects, rather than to describe a specific order. The terms "include" and "comprise" used in the specification and claims of the present application indicate the presence of the described features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or their collections.

[0025] See also Figure 1 As shown, the embodiment of the present application discloses a high-voltage integrated cabinet, including a first cabinet body 6, an incoming line unit 1, a conversion unit 2, a protection unit 3 and a power consumption unit 4. The incoming line unit 1, the conversion unit 2, the protection unit 3 and the power consumption unit 4 are all placed in the first cabinet body 6. The incoming line unit 1 connects the high-voltage power supply and the conversion unit 2, and the incoming line unit 1 is suitable for transmitting the high-voltage power supply to the conversion unit 2. The conversion unit 2 includes: a voltage transformer with a built-in fuse, and the voltage transformer with a built-in fuse is suitable for generating a low-voltage signal corresponding to the high-voltage power supply, and transmitting the low-voltage signal to the power consumption unit 4.

[0026] This embodiment integrates the incoming line unit 1, the conversion unit 2, the protection unit 3 and the power consumption unit 4 into a high-voltage cabinet, thereby realizing a high degree of integration of the high-voltage cabinet. Only one high-voltage cabinet is needed to complete voltage conversion, use and circuit protection, thereby increasing the function of the high-voltage cabinet, reducing the requirements for the space size of the distribution room, and reducing the production cost.

[0027] The above components are described in detail below.

[0028] See also Figure 2 As shown, the incoming line unit 1 may include a busbar 11 and a silicone cable 12 .

[0029] In this embodiment, a high-voltage power supply is connected via the busbar 11, and the high-voltage power supply can output high-voltage electricity of 1kV-220kV. In this embodiment, the high-voltage power supply outputs high-voltage electricity of 10kV. The silicone cable 12 connects the busbar 11 and the conversion unit 2, and can safely transmit the high-voltage power supply to the conversion unit 2, thereby improving the safety of transmitting high-voltage electricity.

[0030] See also Figure 3 As shown, the conversion unit 2 may include two voltage transformers with built-in fuses.

[0031] The high-voltage power supply outputs high-voltage electricity to the incoming line unit 1 through three live wires of three-phase electricity, namely, live wire R, live wire S and live wire T. The incoming line unit 1 introduces the high-voltage electricity into the conversion unit 2. Two voltage transformers with built-in fuses convert the high-voltage electricity output by the high-voltage power supply into a corresponding low-voltage signal and transmit it to the power consumption unit 4. In addition, the voltage transformer with built-in fuse can also protect the path between the high-voltage power supply and the conversion unit 2. The low-voltage signal can be a low-voltage electricity of 220V, 200V, 110V or 100V. In this embodiment, the low-voltage signal is 100V. The conversion unit 2 can be implemented by JDZR10-10A.

[0032] By connecting two built-in fuses in a V / V connection mode, the three-phase voltage transformer is replaced, which greatly reduces the volume, reduces the use of electrical cabinets, and saves production costs. It is understandable that, according to actual needs, the conversion unit 2 can also be composed of multiple built-in fuse voltage transformers.

[0033] See also Figure 2 Combined with Figure 3 As shown, the protection unit 3 includes a fuse 31 .

[0034] The fuse 31 connects the conversion unit 2 and the power unit 4. The fuse 31 is suitable for protecting the first path. When the first current exceeds the current threshold, the fuse 31 is suitable for melting the fuse 31 with the heat generated by itself, thereby cutting off the first path and protecting the first path. The first current is the current between the voltage transformer with the built-in fuse and the power unit 4, and the first path is the path between the voltage transformer with the built-in fuse and the power unit 4.

[0035] The fuse 31 may include: a fuse FU1 , a fuse FU2 and a fuse FU3 .

[0036] The conversion unit 2 converts the high voltage electricity on the three live wires into low voltage signals and transmits them to the fuse 31 through three outputs, wherein the first end of the fuse FU1, the first end of the fuse FU2 and the first end of the fuse FU3 are respectively connected to the three output ends of the conversion unit 2. The first end of the fuse FU1 is the end close to the conversion unit 2, the first end of the fuse FU2 is the end close to the conversion unit 2, and the first end of the fuse FU3 is the end close to the conversion unit 2.

[0037] More specifically, the protection unit 3 may further include a circuit breaker 32 .

[0038] The circuit breaker 32 connects the fuse 31 and the power unit 4. The protection unit 3 may include the fuse 31, the circuit breaker 32 and the grounding protection component 33, or the protection unit 3 may also be composed of the fuse 31 and the grounding protection component 33. Reasonable selection and setting can be made according to actual needs.

[0039] The first path is the low-voltage side, and the circuit breaker 32 can provide secondary protection for the low-voltage side. It is suitable for disconnecting the circuit breaker 32 when a short circuit or overload occurs in the first path, thereby cutting off the first path and protecting the first path. In addition, after the high-voltage integrated cabinet is turned off, the circuit breaker 32 can be manually disconnected to disconnect the first path, thereby ensuring the safety of the power distribution equipment.

[0040] The circuit breaker 32 may include: a circuit breaker QF1, a circuit breaker QF2, and a circuit breaker QF3. The first end of the circuit breaker QF1 is connected to the second end of the fuse FU1, the first end of the circuit breaker QF2 is connected to the second end of the fuse FU2, and the first end of the circuit breaker QF3 is connected to the second end of the fuse FU3. The second end of the fuse FU1 is an end away from the conversion unit 2, the second end of the fuse FU2 is an end away from the conversion unit 2, and the second end of the fuse FU3 is an end away from the conversion unit 2. The second end of the circuit breaker QF1, the second end of the circuit breaker QF2, and the second end of the circuit breaker QF3 are respectively connected to the three input ends of the power unit 4. The second end of the circuit breaker QF1 is an end away from the fuse FU1, the second end of the circuit breaker QF2 is an end away from the fuse FU1, and the second end of the circuit breaker QF3 is an end away from the fuse FU1.

[0041] Further, see Figure 3 As shown, the protection unit 3 may further include a grounding protection component 33 .

[0042] The grounding protection component 33 is connected to the conversion unit 2. The grounding protection component 33 may include a first ground, a second ground and a third ground. The first ground and the second ground are respectively connected to the housings of two voltage transformers with built-in fuses, and the third ground is a neutral point ground. The grounding protection component 33 can provide protection for the safe operation of the first path and further protect the safety of the user.

[0043] Further, see Figure 2 As shown, the power consumption unit 4 may include: a multi-function meter 41 and a controller 42 .

[0044] One end of the multi-function meter 41 is connected to the fuse 31 or the circuit breaker 32, and the other end is connected to the controller 42. The multi-function meter 41 is adapted to generate a first current signal corresponding to the first current and a first voltage signal corresponding to the first voltage, and transmit the signals to the controller 42. The first voltage is the voltage between the voltage transformer with the built-in fuse and the power consumption unit 4. Both the first current signal and the first voltage signal are analog signals.

[0045] The controller 42 is adapted to convert the first current signal into a first digital signal and convert the first voltage signal into a second digital signal. The controller 42 can convert an analog signal into a digital signal.

[0046] Specifically, the power consumption unit 4 may further include: an alarm component.

[0047] The controller 42 is also suitable for generating an alarm signal when the first digital signal exceeds the current threshold, or when the second digital signal exceeds the voltage threshold. The alarm component is connected to the controller 42, and the alarm component is suitable for generating an alarm reminder according to the alarm signal. The alarm reminder includes: an icon, a speaker and an LED flash. The icon of the alarm reminder is displayed on the display unit 5, the speaker is suitable for emitting an alarm sound, and the LED flash is suitable for emitting an alarm prompt light. When the staff sees one or more of the alarm reminders, they can promptly perform equipment maintenance.

[0048] Further, see Figure 2 As shown, the high-voltage integrated cabinet also includes a display unit 5 .

[0049] The display unit 5 is arranged on the outer wall of the first cabinet 6 or the inner wall of the first cabinet 6 or inside the first cabinet 6, and can be reasonably selected and set according to actual needs. The display unit 5 is suitable for displaying the current and voltage of the first path in real time according to the first digital signal and the second digital signal, and can also display other information in the circuit according to the needs of the user, and can be reasonably selected and set according to actual needs, so that the user can view the real-time status of the high-voltage integrated cabinet.

[0050] The display unit 5 may be a display screen or a touch screen, and may be reasonably selected and set according to actual needs.

[0051] Specifically, see Figure 1 As shown, the high-voltage integrated cabinet further includes a first cabinet body 6 and a second cabinet body 7 .

[0052] In order to make the internal structure of the high-voltage integrated cabinet more compact, the high-voltage integrated cabinet includes a first cabinet body 6 and a second cabinet body 7, wherein the second cabinet body 7, the incoming line unit 1, the conversion unit 2 and the power consumption unit 4 are arranged in the first cabinet body 6, the incoming line unit 1 and the conversion unit 2 are arranged in the second cabinet body 7, and the second cabinet body 7 is fixed in the first cabinet body 1, so that the overall spatial structure of the high-voltage integrated cabinet is compactly arranged.

[0053] In order to facilitate understanding of the above technical solutions of the present invention, the working principle or operation mode of the present invention in the actual process is described in detail below.

[0054] When the high-voltage integrated cabinet is turned on, the high-voltage power supply is transmitted to the conversion unit 2 through the bus 11 and the silicone cable 12 in sequence. The conversion unit 2 generates a low-voltage signal corresponding to the high-voltage power supply and transmits it to the power consumption unit 4. In the process of transmitting the low-voltage signal to the power consumption unit 4, the fuse 31, the circuit breaker 32 and the grounding protection component 33 can provide multiple protections for the first path. The multi-function meter 41 receives the low-voltage signal, can generate a first current signal and a first voltage signal, and transmit them to the controller 42. The controller 42 generates the corresponding first digital signal and the second digital signal and transmits them to the display unit 5. The display unit 5 can display the current and voltage of the first path in real time.

[0055] When a circuit failure occurs in the high-voltage integrated cabinet, the controller 42 detects that the first digital signal exceeds the current threshold or the second digital signal exceeds the voltage threshold, and the controller 42 generates an alarm signal. The alarm signal sends an alarm reminder through the alarm component. The alarm reminder includes an icon, a speaker, and an LED flash light, where the icon alarm is displayed on the display unit 5. The controller 42 also shuts down the high-voltage integrated cabinet based on the alarm signal.

[0056] In general, the present application provides a high-voltage integrated cabinet, including a first cabinet, an incoming line unit, a conversion unit, a protection unit and a power unit; the incoming line unit, the conversion unit, the protection unit and the power unit are all placed in the first cabinet; the incoming line unit connects the high-voltage power supply and the conversion unit, and the incoming line unit is suitable for transmitting the high-voltage power supply to the conversion unit; the conversion unit includes: a voltage transformer with a built-in fuse, the voltage transformer with a built-in fuse is suitable for generating a low-voltage signal corresponding to the high-voltage power supply, and transmitting the low-voltage signal to the power unit; the protection unit includes: a fuse, the fuse is connected to the conversion unit, and the fuse is suitable for cutting off a first path when a first current exceeds a current threshold, and the first path is a path between the voltage transformer with a built-in fuse and the power unit. The present application integrates the incoming line unit, the conversion unit, the protection unit and the power unit into one cabinet, and only one high-voltage integrated cabinet is needed to complete the voltage conversion, use and circuit protection, thereby increasing the function of the high-voltage cabinet, reducing the requirements for the size of the installation site space, and reducing the production cost.

[0057] Although this specification has shown and described a plurality of embodiments of the present application, it is obvious to those skilled in the art that such embodiments are provided by way of example only. Those skilled in the art will think of many changes, modifications and alternatives without departing from the thought and spirit of the present application. It should be understood that in the process of practicing the present application, various alternatives to the embodiments of the present application described herein may be adopted.

[0058] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high voltage integrated cabinet, characterized in that: include: The first cabinet, the incoming line unit, the conversion unit, the protection unit and the power consumption unit; The incoming line unit, conversion unit, protection unit and power consumption unit are all placed in the first cabinet; The incoming line unit is connected to the high-voltage power supply and the conversion unit, and the incoming line unit is suitable for transmitting the high-voltage power supply to the conversion unit; The conversion unit comprises: a voltage transformer with a built-in fuse, the voltage transformer with a built-in fuse is suitable for generating a low voltage signal corresponding to the high voltage power supply, and transmitting the low voltage signal to the power consumption unit; The protection unit includes: a fuse, which is connected to the conversion unit, and is suitable for cutting off a first path when a first current exceeds a current threshold, the first current is the current between the voltage transformer with the built-in fuse and the power consumption unit, and the first path is the path between the voltage transformer with the built-in fuse and the power consumption unit.

2. The high voltage integrated cabinet according to claim 1, characterized in that: There are two voltage transformers with built-in fuses, and a V / V connection mode is adopted between the two voltage transformers with built-in fuses.

3. The high voltage integrated cabinet according to claim 1, characterized in that: The protection unit further comprises: a circuit breaker; The circuit breaker connects the fuse and the power-consuming unit, and is suitable for cutting off the first path when a short circuit or overload occurs in the first path.

4. The high voltage integrated cabinet according to claim 1, characterized in that: The protection unit also includes: a ground protection component; The ground protection component is connected to the conversion unit.

5. The high voltage integrated cabinet according to claim 1, characterized in that: The power consumption unit comprises: a multi-function meter and a controller; The multifunctional meter is connected to the protection unit and the controller, and is adapted to generate a first current signal corresponding to the first current and a first voltage signal corresponding to the first voltage, and transmit the signals to the controller, wherein the first voltage is a voltage between the voltage transformer with the built-in fuse and the power consumption unit; The first current signal and the first voltage signal are both analog signals; The controller is adapted to convert the first current signal into a first digital signal, and convert the first voltage signal into a second digital signal.

6. The high voltage integrated cabinet according to claim 5, characterized in that: Also includes: Display unit; The display unit is disposed in or on the first cabinet, and is connected to the controller, and is suitable for displaying the current and voltage of the first path according to the first digital signal and the second digital signal.

7. The high voltage integrated cabinet according to claim 6, characterized in that: The controller is further adapted to generate an alarm signal when the first digital signal exceeds the current threshold or when the second digital signal exceeds a voltage threshold.

8. The high voltage integrated cabinet according to claim 7, characterized in that: The power consumption unit further comprises: an alarm component; The alarm component is connected to the controller and the display unit, and the alarm component is suitable for generating an alarm reminder according to the alarm signal; The alarm reminder includes: an icon, a speaker and an LED flash light.

9. The high voltage integrated cabinet according to claim 1, characterized in that: The incoming line unit comprises: a busbar and a silicone cable; The busbar connects the high voltage power supply and the silicone cable; The silicone cable is connected to the conversion unit and is suitable for transmitting the high voltage power supply to the conversion unit.

10. The high voltage integrated cabinet according to claim 1, characterized in that: Also includes a second cabinet; The incoming line unit and the conversion unit are placed in the second cabinet, and the second cabinet is placed in the first cabinet.

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