阅读说明：本技术 变电站视频与环境监控系统集中控制箱 (Centralized control box for video and environment monitoring system of transformer substation ) 是由 周永光 熊理想 谢欢欢 周潮 杨忠亮 张洪春 曹建伟 于 2019-07-31 设计创作，主要内容包括：本申请提供一种变电站视频与环境监控系统集中控制箱。变电站视频与环境监控系统集中控制箱可以提供多路直流12V和交流24V电源,并且配置有一个光纤终端熔接盒,可以满足变电站视频与环境监控系统的配电箱使用。通过少量的变电站视频与环境监控系统集中控制箱既可以满足变电站视频及环境监控系统的配电使用需求,也可以极大的减少配电箱使用数量。因此,通过变电站视频与环境监控系统集中控制箱可以替换多个传统的配电箱体,进而电缆和信号传输线路、摄像头等匹配装置也可以相应的减少,从而使得变电站视频与环境监控系统更容易集中管理控制。(The application provides a video of transformer substation and environmental monitoring system centralized control case. The transformer substation video and environment monitoring system centralized control box can provide multiple direct current 12V and alternating current 24V power supplies, is provided with an optical fiber terminal fusion box, and can meet the use requirement of a distribution box of the transformer substation video and environment monitoring system. The distribution use requirements of the transformer substation video and the environment monitoring system can be met through a small number of transformer substation video and environment monitoring system centralized control boxes, and the use number of distribution boxes can be greatly reduced. Therefore, a plurality of traditional distribution boxes can be replaced by the centralized control box of the transformer substation video and environment monitoring system, and then matching devices such as cables, signal transmission lines and cameras can be correspondingly reduced, so that the transformer substation video and environment monitoring system can be managed and controlled more easily in a centralized manner.)

1. The utility model provides a video of transformer substation and environmental monitoring system centralized control case, is applied to video of transformer substation and environmental monitoring system, its characterized in that includes:

A housing (10) surrounding and forming a housing space (111);

A power conversion device (20) disposed in the housing space (111), the power conversion device (20) converting a control box power supply voltage into a plurality of paths of voltages;

The power conversion device (20) comprises a direct-current voltage conversion circuit (210) and an alternating-current voltage conversion circuit (220);

The first end of the direct-current voltage conversion circuit (210) is connected with a zero line; the second end of the direct-current voltage conversion circuit (210) is connected with a live wire corresponding to a control box power supply and is used for being connected with a 220V feeder corresponding to the control box power supply; the third end of the direct current voltage conversion circuit (210) is a direct current voltage end, and the third end of the direct current voltage conversion circuit (210) is connected with a plurality of first loads;

The alternating voltage conversion circuit (220) comprises a first sub-circuit (221) and a second sub-circuit (222);

The first end of the first sub-circuit (221) is connected with a zero line; the second end of the first sub-circuit (221) is connected with a live wire corresponding to the control box power supply and is used for being connected with a 220V feeder corresponding to the control box power supply; the first end of the second sub-circuit (222) is connected with a zero line; the second end of the second sub-circuit (222) is connected with a corresponding live wire of the control box power supply; the fourth end of the first sub-circuit (221) and the fourth end of the second sub-circuit (222) are connected, and are connected with a zero line.

2. The substation video and environmental monitoring system centralized control box according to claim 1, wherein the dc voltage conversion circuit (210) comprises:

The first end of the first power converter (212) is connected with a zero line, the second end of the first power converter (212) is connected with a live line corresponding to the power supply of the control box, the third end of the first power converter (212) is the direct-current voltage end, and the third end of the first power converter (212) is connected with the first loads.

3. The substation video and environmental monitoring system centralized control box according to claim 2, characterized in that the third terminal of the first power converter (212) is connected with a plurality of second micro-switches (213), and a plurality of direct current 12V feeders are led out through the plurality of second micro-switches (213).

4. The substation video and environmental monitoring system centralized control box according to claim 2, characterized in that the first end of the first power converter (212) is connected to the neutral line through a third micro-break switch (211), and the second end of the first power converter (212) is connected to the corresponding live line of the control box power through the third micro-break switch (211).

5. Substation video and environmental monitoring system centralized control box according to claim 1, characterized in that the first sub-circuit (221) comprises a second power converter (2211), the second sub-circuit (222) comprises a third power converter (2221);

A first end of the second power converter (2211) is connected with a zero line through a sixth micro-break switch (2212), and a second end of the second power converter (2211) is connected with a live line corresponding to the control box power supply through the sixth micro-break switch (2212) and is used for being connected with a 220V feeder corresponding to the control box power supply;

The first end of the third power converter (2221) is connected with a zero line through a seventh micro-break switch (2222), and the second end of the third power converter (2221) is connected with a live wire corresponding to the control box power supply through the seventh micro-break switch (2222) and is used for being connected with a 220V feeder corresponding to the control box power supply.

6. the substation video and environmental monitoring system centralized control box of claim 5, wherein the alternating voltage conversion circuit (220) further comprises:

A static switch (223), wherein a first end of the static switch (223) is connected with a third end of the second power converter (2211);

The second end of the static switch (223) is connected with the third end of the third power converter (2221);

The third end of the static switch (223) is an alternating voltage end, and the third end of the static switch (223) is connected with a plurality of second loads.

7. The substation video and environment monitoring system centralized control box according to claim 6, characterized in that the third terminal of the static switch (223) is connected with a plurality of fourth micro-switches (224), and a multi-way alternating current 24V feeder is led out through the plurality of fourth micro-switches (224).

8. Substation video and environmental monitoring system centralized control box according to claim 1, characterized in that said power conversion means (20) further comprise:

A tide and socket circuit (230), a first end of the tide and socket circuit (230) being connected with a neutral wire;

the second end of the moisture removing and socket circuit (230) is connected with a corresponding live wire of the control box power supply and is used for being connected with a corresponding 220V feeder of the control box power supply;

the moisture dissipating and socket circuit (230) has third and fourth terminals both grounded.

9. Substation video and environmental monitoring system centralized control box according to claim 8, characterized in that said tide and socket circuit (230) comprises:

One end of the moisture removing circuit (231) is connected with a zero line through a fifth micro-break switch (234), and the other end of the moisture removing circuit (231) is connected with a live wire corresponding to the power supply of the control box through the fifth micro-break switch (234);

A first end of the socket loop (232) is connected with a zero line through a fifth micro-switch (234), a second end of the socket loop (232) is connected with a live line corresponding to the power supply of the control box through the fifth micro-switch (234), and a third end of the socket loop (232) is grounded;

One end of the lightning arrester (233) is connected with a zero line through a fifth micro disconnecting switch (234), and the other end of the lightning arrester (233) is grounded;

One end of the second lightning protection device (235) is connected with the zero line through the fifth micro-break switch (234), and the other end of the second lightning protection device (235) is grounded.

10. the substation video and environmental monitoring system centralized control box of claim 1, further comprising:

the isolation structure (120) is arranged in the accommodating space (111), the isolation structure (120) is connected with the inner wall of the shell (10), and the isolation structure (120) isolates the accommodating space (111) to form a first installation space (112) and a second installation space (113);

the power conversion device (20) is arranged in the first installation space (112);

And an optical fiber termination fusion splice cassette (30) disposed in the first installation space (112).

Technical Field

The application relates to the technical field of transformer substation monitoring, in particular to a transformer substation video and environment monitoring system centralized control box.

Background

With the improvement of the requirements on the informatization and the intellectualization of the transformer substation, the application of the video and environment monitoring system in the transformer substation is more and more extensive. The system can meet the working requirements of remote monitoring, remote operation auxiliary monitoring, field working behavior supervision, accident and obstacle auxiliary analysis, emergency command drilling and the like of equipment working conditions in the transformer substation, and ensures the safe operation of the transformer substation. According to the requirements of relevant regulations, cameras need to be arranged on each equipment room, equipment site, transformer substation enclosure and roof to meet the requirement of video monitoring full coverage.

However, one camera needs to be provided with one distribution box, and the power supply and the signal transmission adopt a control mode of decentralized power supply, so that the number of video distribution boxes in the transformer substation is large. Taking a transformer substation dominated by a Shenzhen power grid as an example, a 110kV transformer substation is configured with about 25 cameras, a 220kV transformer substation is configured with about 35 cameras, and a corresponding number of distribution boxes are also configured. Therefore, the traditional transformer substation video and environment monitoring system needs a large number of distribution boxes, the distribution boxes are scattered in each equipment room and high-voltage field, and a power supply line and a signal transmission line are complicated to lay and inconvenient to manage in a centralized mode.

Disclosure of Invention

Based on this, it is necessary to need a large amount of distribution boxes to traditional transformer substation's video and environmental monitoring system, and the dispersion is at each equipment room and high voltage field, and power supply line and signal transmission line lay complicacy, inconvenient centralized management's problem provides a can satisfy the transformer substation's video and the environmental monitoring system centralized control case of environmental monitoring system demand through a small amount of block terminals.

The application provides a transformer substation video and environmental monitoring system centralized control box, which is applied to a transformer substation video and environmental monitoring system. The transformer substation video and environment monitoring system centralized control box comprises a shell and a power supply conversion device. The shell surrounds to form a containing space. The power conversion device is arranged in the accommodating space. The power supply conversion device is used for converting the power supply voltage of the control box into multi-path voltage. The power conversion device comprises a direct-current voltage conversion circuit and an alternating-current voltage conversion circuit. And the first end of the direct-current voltage conversion circuit is connected with a zero line. And the second end of the direct-current voltage conversion circuit is connected with a live wire corresponding to the power supply of the control box and is used for being connected with a 220V feeder corresponding to the power supply of the control box. The third end of the direct current voltage conversion circuit is a direct current voltage end, and the third end of the direct current voltage conversion circuit is connected with the plurality of first loads.

the alternating voltage conversion circuit comprises a first sub-circuit and a second sub-circuit. And the first end of the first sub-circuit is connected with a zero line. And the second end of the first sub-circuit is connected with a live wire corresponding to the control box power supply and is used for being connected with a 220V feeder corresponding to the control box power supply. And the first end of the second sub-circuit is connected with a zero line. And the second end of the second sub-circuit is connected with the corresponding live wire of the control box power supply. And the fourth end of the first sub-circuit is connected with the fourth end of the second sub-circuit and is connected with a zero line.

In one embodiment, the dc voltage conversion circuit includes a first power converter. The first end of the first power converter is connected with a zero line. And the second end of the first power converter is connected with a corresponding live wire of the control box power supply. The third end of the first power converter is the direct-current voltage end, and the third end of the first power converter is connected with the plurality of first loads.

In one embodiment, the third end of the first power converter is connected with a plurality of second micro-disconnection switches, and a plurality of direct current 12V feeders are led out through the plurality of second micro-disconnection switches.

In one embodiment, the first end of the first power converter is connected with a neutral wire through a third micro-break switch. And the second end of the first power converter is connected with the corresponding live wire of the control box power supply through the third micro-break switch.

In one embodiment, the first sub-circuit comprises a second power converter. The second sub-circuit comprises a third power converter. And the first end of the second power supply converter is connected with the zero line through a sixth micro-break switch. And the second end of the second power converter is connected with the corresponding live wire of the control box power supply through the sixth micro-break switch and is used for being connected with the corresponding 220V feeder line of the control box power supply. And the first end of the third power converter is connected with the zero line through a seventh micro-break switch. And the second end of the third power converter is connected with the corresponding live wire of the control box power supply through the seventh micro-break switch and is used for being connected with the corresponding 220V feeder of the control box power supply.

in one embodiment, the ac voltage conversion circuit further comprises a static switch. And the first end of the static switch is connected with the third end of the second power converter. And the second end of the static switch is connected with the third end of the third power converter. And the third end of the static switch is an alternating-current voltage end and is connected with the plurality of second loads.

in one embodiment, the third end of the static switch is connected with a plurality of fourth micro-disconnection switches, and a plurality of alternating current 24V feeders are led out through the plurality of fourth micro-disconnection switches.

In one embodiment, the power conversion device further includes a moisture dissipating and socket circuit (230). The first end of the moisture removing and socket circuit (230) is connected with a neutral wire. And the second end of the damp-dispelling and socket circuit (230) is connected with a live wire corresponding to the control box power supply and is used for being connected with a 220V feeder corresponding to the control box power supply. The moisture dissipating and socket circuit (230) has third and fourth terminals both grounded.

In one embodiment, the dampening and receptacle circuit includes a dampening circuit and a receptacle circuit. And one end of the moisture removing circuit is connected with the zero line through a fifth micro-break switch. And the other end of the moisture driving circuit is connected with a live wire corresponding to the power supply of the control box through the fifth micro-break switch. And the first end of the socket loop is connected with the zero line through a fifth micro-break switch. And the second end of the socket loop is connected with the corresponding live wire of the control box power supply through the fifth micro-break switch, and the third end of the socket loop is grounded.

In one embodiment, the tidal and socket circuit further comprises a first lightning protector and a second lightning protector. One end of the lightning protection device is connected with the zero line through a fifth micro-break switch, and the other end of the lightning protection device is grounded. One end of the second lightning protection device is connected with the zero line through the fifth micro-break switch, and the other end of the second lightning protection device is grounded.

In one embodiment, the substation video and environment monitoring system centralized control box further comprises an isolation structure and an optical fiber terminal fusion box. The isolation structure is arranged in the accommodating space. The isolation structure is connected with the inner wall of the shell. And the isolation structure isolates the receiving space to form a first installation space and a second installation space. The power conversion device is arranged in the first installation space. The optical fiber terminal fusion-splicing box is arranged in the first installation space.

The application provides an above-mentioned video of transformer substation and environmental monitoring system centralized control case. The transformer substation video and environment monitoring system centralized control box can provide multiple direct current 12V and alternating current 24V power supplies, is provided with an optical fiber terminal fusion box, and can meet the use requirement of a distribution box of the transformer substation video and environment monitoring system. The distribution use requirements of the transformer substation video and the environment monitoring system can be met through a small number of transformer substation video and environment monitoring system centralized control boxes, and the use number of distribution boxes can be greatly reduced. Therefore, a plurality of traditional distribution boxes can be replaced by the centralized control box of the transformer substation video and environment monitoring system, and then matching devices such as cables, signal transmission lines and cameras can be correspondingly reduced, so that the transformer substation video and environment monitoring system can be managed and controlled more easily in a centralized manner.

Drawings

Fig. 1 is a schematic overall structure diagram of a centralized control box of a substation video and environment monitoring system provided in the present application;

Fig. 2 is a schematic diagram of an overall circuit structure of the power conversion apparatus provided in the present application;

Fig. 3 is a schematic diagram of a partial structure of an ac voltage converting circuit provided in the present application;

fig. 4 is a schematic view of an optical fiber termination fusion splice cassette provided herein.

description of the reference numerals

The centralized control box 100 of the substation video and environment monitoring system, a housing 10, a receiving space 111, a power converter 20, a dc-to-voltage conversion circuit 210, a first micro-break switch 214, a first power converter 212, a second micro-break switch 213, a third micro-break switch 211, an ac-to-voltage conversion circuit 220, a first sub-circuit 221, a second sub-circuit 222, a sixth micro-break switch 2212, a second power converter 2211, a first sub-circuit 221, a third power converter 2221, a seventh micro-break switch 2222, a static switch 223, a fourth micro-break switch 224, a moisture expelling and socket circuit 230, a fifth micro-break switch 234, a moisture expelling circuit 231, a socket loop 232, a first lightning arrester 233, a second lightning arrester 235, an isolation structure 120, a first installation space 112, a second installation space 113, a closed structure 115, a connection assembly 116, a first heat dissipation vent 114, a second heat dissipation vent 121, an optical cable hole 122, a second heat dissipation vent 115, a connection assembly 116, and a power supply device, Cable holes 123, fiber termination fusion splice tray 30.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below by way of embodiments and with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be considered as limiting the present application.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1-2, the present application provides a centralized control box 100 for a substation video and environment monitoring system, which is applied to a substation video and environment monitoring system. The substation video and environment monitoring system centralized control box 100 comprises a shell 10 and a power conversion device 20. The housing 10 encloses a receiving space 111. The power conversion device 20 is disposed in the housing space 111. The power conversion device 20 is used for converting the control box power voltage into a plurality of paths of voltages. The power conversion apparatus 20 includes a dc voltage conversion circuit 210. The first end of the dc voltage converting circuit 210 is connected to the neutral line. The second end of the dc voltage converting circuit 210 is connected to a live wire corresponding to the control box power supply, and is configured to be connected to a 220V feeder corresponding to the control box power supply. The third terminal of the dc voltage converting circuit 210 is a dc voltage terminal, and the third terminal of the dc voltage converting circuit 210 is connected to a plurality of first loads.

the dc voltage converting circuit 210 converts the control box power voltage into multiple dc voltages, and each dc voltage can be connected to one of the first loads. And providing voltage to the plurality of first loads through the plurality of direct current voltages. At this time, the power conversion device 20 may enable the substation video and environmental monitoring system centralized control box 100 to provide voltage for the plurality of first loads. Therefore, the distribution use requirements of the transformer substation video and environment monitoring system can be met through a small number of the transformer substation video and environment monitoring system centralized control boxes 100, and the use number of the distribution boxes can be greatly reduced. Therefore, the centralized control box 100 for the substation video and environment monitoring system can replace a plurality of traditional distribution boxes, and matching devices such as cables, signal transmission lines and cameras can be correspondingly reduced, so that the substation video and environment monitoring system is easier to manage and control in a centralized manner.

In one embodiment, the control box power supply is a 220V feeder line which is connected with a 380V alternating current feeder line in a power supply station. Through the substation video and environment monitoring system centralized control box 100, 220V can be converted into multi-path direct current 12V voltage, and the use amount of the traditional distribution box body can be reduced.

in one embodiment, the housing 10 may be made of Polycarbonate (PC) with good insulation, extensibility, stability, flame retardancy, and corrosion resistance. Moreover, the box body of the centralized control box 100 of the transformer substation video and environment monitoring system is sealed by a sealing rubber ring with corrosion resistance, tearing resistance, abrasion resistance and stable performance. Meanwhile, an industrial plug with high protection level, flame retardance, water resistance and dust resistance is used as the sealing of the wiring hole span of the centralized control box 100 of the transformer substation video and environment monitoring system. Therefore, the problems that the traditional distribution box is easy to corrode, poor in waterproof performance and the like can be solved through the shell 10. Meanwhile, the shell 10 is made of a corrosion-resistant PC material, so that the service life and the sealing performance of the transformer substation video and environment monitoring system centralized control box 100 can be guaranteed, and the risk of short circuit of equipment in the transformer substation video and environment monitoring system centralized control box 100 is avoided. The casing 10 provides a stable environment for the equipment in the storage space 111 of the substation video and environment monitoring system centralized control box 100, so that the normal operation of the equipment is guaranteed.

In one embodiment, the dc voltage conversion circuit 210 includes a first power converter 212. The first end of the first power converter 212 is connected to neutral. The second end of the first power converter 212 is connected to the corresponding live wire of the control box power supply. The third terminal of the first power converter 212 is the dc voltage terminal. And the third terminal of the first power converter 212 is connected to the plurality of first loads.

The first power converter 212 is a 250W 220V AC to 12V DC power converter for converting AC220V voltage to DC 12V. The third terminal of the first power converter 212 is an output terminal of 12v dc voltage, and provides 12v dc voltage for the plurality of first loads. The number of the plurality of first loads may be 3, 4, or 5, etc., without limitation.

The control box supply voltage 220V is converted to a multi-path 12V dc voltage by the first power converter 212. Each 12v dc voltage path may be connected to one of said first loads. At this time, the first power converter 212 may enable the substation video and environmental monitoring system centralized control box 100 to provide voltage for the plurality of first loads. Therefore, the distribution use requirements of the transformer substation video and environment monitoring system can be met through a small number of the transformer substation video and environment monitoring system centralized control boxes 100, and the use number of the distribution boxes can be greatly reduced.

Therefore, the centralized control box 100 for the substation video and environment monitoring system can replace a plurality of traditional distribution boxes, and matching devices such as cables, signal transmission lines and cameras can be correspondingly reduced, so that the substation video and environment monitoring system is easier to manage and control in a centralized manner.

in one embodiment, the third terminal of the first power converter 212 is connected to a plurality of second micro-break switches 213, and a plurality of direct current 12V feeders are led out through the plurality of second micro-break switches 213. Whether the 12v dc voltage supplies the plurality of first loads can be controlled by the plurality of second micro-break switches 213. The second micro-break switch 213 may be a 3A leaky micro-break switch.

in one embodiment, a first end of the first power converter 212 is connected to a neutral line through a third micro-break switch 211, and a second end of the first power converter 212 is connected to a corresponding live line of the control box power through the third micro-break switch 211.

The third micro-switch 211 is a main switch of the dc-to-voltage conversion circuit 210, and is used to control the dc-to-voltage conversion circuit 210. The third micro-break switch 211 may be a 10A leaky micro-break switch.

Referring to fig. 3, in an embodiment, the power conversion apparatus 20 further includes an ac voltage converting circuit 220. The ac voltage converting circuit 220 includes a first sub-circuit 221 and a second sub-circuit 222. A first end of the first sub-circuit 221 is connected to the neutral line. The second end of the first sub-circuit 221 is connected to the live wire corresponding to the control box power supply, and is configured to be connected to the 220V feeder corresponding to the control box power supply. The first end of the second sub-circuit 222 is connected to the neutral line. The second end of the second sub-circuit 222 is connected to the corresponding live wire of the control box power supply. The fourth end of the first sub-circuit 221 and the fourth end of the second sub-circuit 222 are connected, and are connected with a zero line.

The control box power supply voltage is converted into a plurality of alternating voltages by the alternating voltage conversion circuit 220. Each path of alternating voltage can be connected with one second load. And providing the voltage to the plurality of second loads through the multi-path alternating current voltage. At this time, the power conversion device 20 may enable the substation video and environmental monitoring system centralized control box 100 to provide voltage for the plurality of second loads. Therefore, the distribution use requirements of the transformer substation video and environment monitoring system can be met through a small number of the transformer substation video and environment monitoring system centralized control boxes 100, and the use number of the distribution boxes can be greatly reduced. Therefore, the centralized control box 100 for the substation video and environment monitoring system can replace a plurality of traditional distribution boxes, and matching devices such as cables, signal transmission lines and cameras can be correspondingly reduced, so that the substation video and environment monitoring system is easier to manage and control in a centralized manner.

Also, a dual configuration loop may be implemented by the first sub-circuit 221 and the second sub-circuit 222. In operation, one of the first sub-circuit 221 and the second sub-circuit 222 may be used as a main power supply, and the other may be used as a backup power supply. When the main power supply is abnormal, the main power supply can be automatically switched to the standby power supply to ensure uninterrupted power supply, so that the normal work of the centralized control box 100 of the substation video and environment monitoring system can be ensured.

In one embodiment, the first sub-circuit 221 includes a second power converter 2211. The second sub-circuit 222 includes a third power converter 2221. The first end of the second power converter 2211 is connected to the neutral line through a sixth micro-disconnect switch 2212. A second end of the second power converter 2211 is connected to the corresponding live wire of the control box power supply through the sixth micro-disconnect switch 2212, and is configured to be connected to a 220V feeder corresponding to the control box power supply. A first end of the third power converter 2221 is connected to the neutral line through a seventh micro-switch 2222. A second end of the third power converter 2221 is connected to the live wire corresponding to the control box power supply through the seventh micro-disconnection switch 2222, and is configured to be connected to the 220V feeder corresponding to the control box power supply.

The second power converter 2211 is a 1000W power converter with 220V AC to 24V AC for converting AC220V voltage to AC24V voltage. The third terminal of the second power converter 2211 is an output terminal of 24V ac voltage, and may be connected to a plurality of second loads to provide 24V ac voltage for the loads. The number of the second loads may be 3, 4, or 5, etc., without limitation.

The control box power voltage 220V is converted into multiple 24V ac voltages by the second power converter 2211. Each path of 24V ac voltage may be connected to a second load. At this time, the substation video and environment monitoring system centralized control box 100 may be enabled to provide voltage for the plurality of second loads through the second power converter 2211. Therefore, the distribution use requirements of the transformer substation video and environment monitoring system can be met through a small number of the transformer substation video and environment monitoring system centralized control boxes 100, and the use number of the distribution boxes can be greatly reduced.

Therefore, the centralized control box 100 for the substation video and environment monitoring system can replace a plurality of traditional distribution boxes, and matching devices such as cables, signal transmission lines and cameras can be correspondingly reduced, so that the substation video and environment monitoring system is easier to manage and control in a centralized manner.

The sixth micro disconnecting switch 2212 and the seventh micro disconnecting switch 2222 may be 20A micro disconnecting switches with leakage. The sixth micro-switch 2212 controls the on/off of the first sub-circuit 221. The seventh micro-switch 2222 controls the on/off of the second sub-circuit 222. At this time, the sixth micro disconnecting switch 2212 and the seventh micro disconnecting switch 2222 can control the on/off of each branch of the two-way dual-configuration loop.

In one embodiment, the ac voltage conversion circuit 220 further includes a static switch 223. The first terminal of the static switch 223 is connected to the third terminal of the second power converter 2211. The second terminal of the static switch 223 is connected to the third terminal of the third power converter 2221. The third terminal of the static switch 223 is an ac voltage terminal, and the third terminal of the static switch 223 is connected to a plurality of second loads.

the static switch 223 is a power switch for controlling the first sub-circuit 221 and the second sub-circuit 222 to form a dual configuration loop. In operation, one of the first sub-circuit 221 and the second sub-circuit 222 may be used as a main power supply, and the other may be used as a backup power supply. When the main power supply is abnormal, the static switch 223 can be automatically switched to the standby power supply to ensure uninterrupted power supply, so that the normal work of the substation video and environment monitoring system centralized control box 100 can be ensured. And, the third terminal of the static switch 223 is connected to a plurality of second loads, and can provide 24V ac voltage for the plurality of second loads. Therefore, the transformer substation video and environment monitoring system centralized control box 100 can replace a plurality of traditional distribution box bodies, and matching devices such as cables, signal transmission lines and cameras can be correspondingly reduced, so that the transformer substation video and environment monitoring system can be managed and controlled more easily in a centralized mode.

in one embodiment, the third terminal of the static switch 223 is connected to a plurality of fourth micro-disconnection switches 224, and a multi-way ac24V feeder is led out through the plurality of fourth micro-disconnection switches 224.

The plurality of fourth micro-break switches 224 may be respectively connected to the plurality of second loads. And controlling the substation video and environment monitoring system centralized control box 100 to provide 24V alternating-current voltage for the second loads through the fourth micro-break switches 224. Whether the 24 vac voltage supplies the plurality of second loads may be controlled by the plurality of fourth micro-break switches 224. The plurality of fourth micro-break switches 224 may be 3A leaky micro-break switches.

in one embodiment, the power conversion device 20 further includes a tidal and Outlet Circuit 230. The first end of the tide and socket circuit 230 is connected to neutral. The second end of the damp expelling and socket circuit 230 is connected to the corresponding live wire of the control box power supply, and is used for being connected to the corresponding 220V feeder of the control box power supply. The third and fourth terminals of the dampening and socket circuit 230 are both grounded.

The moisture removing and socket circuit 230 is connected to the first micro-switch 214, so that the first micro-switch 214 can control the on/off of the entire power conversion device 20. The moisture removing and socket circuit 230 can remove moisture in the transformer substation video and environment monitoring system centralized control box 100, so that the risk of short circuit of equipment in the transformer substation video and environment monitoring system centralized control box 100 is avoided. And a maintenance power supply is provided through the moisture driving and socket circuit 230, so that a stable working environment is provided for the equipment in the centralized control box 100 of the transformer substation video and environment monitoring system, and the normal operation of the equipment is guaranteed.

In one embodiment, the dampening and socket circuit 230 includes a dampening circuit 231. One end of the moisture removing circuit 231 is connected with the zero line through the fifth micro-switch 234. The other end of the moisture expelling circuit 231 is connected with the corresponding live wire of the control box power supply through the fifth micro-switch 234.

Through the moisture removing circuit 231, moisture can be removed from the transformer substation video and environment monitoring system centralized control box 100, and the risk of short circuit of equipment in the transformer substation video and environment monitoring system centralized control box 100 is avoided. At this time, a relatively stable environment can be provided for the devices in the centralized control box 100 of the substation video and environment monitoring system through the moisture removing circuit 231, so that the normal operation of the devices is guaranteed.

In one embodiment, the tidal and socket circuit 230 also includes a socket return 232. A first end of the receptacle circuit 232 is connected to neutral via the fifth micro disconnect switch 234. The second end of the socket loop 232 is connected to the corresponding live wire of the control box power supply through the fifth micro-switch 234. The third terminal of the receptacle loop 232 is grounded.

Through the socket loop 232 can be for providing the maintenance power supply, thereby for the equipment in the video of transformer substation and the environmental monitoring system centralized control box 100 provides comparatively stable operational environment, in order to ensure the normal operating of equipment.

In one embodiment, the tidal and socket circuit 230 further includes a first lightning protector 233 and a second lightning protector 235. One end of the lightning protection device 233 is connected with a zero line through the fifth micro disconnecting switch 234, and the other end of the lightning protection device 233 is grounded. One end of the second lightning protection device 235 is connected with a zero line through the fifth micro-switch 234, and the other end of the second lightning protection device 235 is grounded.

The first lightning protection device 233 is arranged in the zero line circuit, and the second lightning protection device 235 is arranged in the live line circuit. The equipment in the substation video and environment monitoring system centralized control box 100 is protected from overvoltage through the first lightning protector 233 and the second lightning protector 235.

in one embodiment, the power conversion device 20 further includes a first micro-break switch 214. The first terminal of the dc voltage converting circuit 210, the first terminal of the first sub-circuit 221, and the first terminal of the second sub-circuit 222 are all connected to a zero line. The first terminal of the dc voltage converting circuit 210, the first terminal of the first sub-circuit 221, and the first terminal of the second sub-circuit 222 are connected to the first micro-switch 214. The second terminal of the dc voltage converting circuit 210, the second terminal of the first sub-circuit 221, and the second terminal of the second sub-circuit 222 are all connected to a live wire. The second terminal of the dc voltage converting circuit 210, the second terminal of the first sub-circuit 221, and the second terminal of the second sub-circuit 222 are connected to the first micro-switch 214. The first micro-switch 214 controls the switching on/off of the entire power converter 20.

The first micro-break switch 214 is a main switch of the power conversion apparatus 20 for controlling the whole circuit. The first micro-disconnect 214 may be a 32A leaky micro-disconnect. The power conversion device 20.

In one embodiment, the substation video and environmental monitoring system centralized control box 100 further comprises an isolation structure 120. The isolation structure 120 is disposed in the receiving space 111. The isolation structure 120 is connected to the inner wall of the housing 10. And the isolation structure 120 isolates the receiving space 111 to form a first installation space 112 and a second installation space 113. The power conversion device 20 is disposed in the first installation space 112.

the isolation structure 120 has the same shape as the cross section of the housing 10, and may be an isolation plate. The isolation structure 120 and the inner wall of the housing 10 can be detachably connected, so that the transformer substation video and the centralized control box 100 of the environment monitoring system can be conveniently detached and connected. The power conversion device 20 is disposed in the first installation space 112, so that a stable environment can be provided for the power conversion device 20, and the normal operation of the power conversion device 20 can be guaranteed.

In one embodiment, the substation video and environmental monitoring system centralized control box 100 further comprises an enclosure 115. The second installation space 113 formed by the isolation structure 120 and the housing 10 has an opening. The closing structure 115 is detachably connected to the housing 10 to close the opening.

The closing structure 115 may be a movable door panel to facilitate the opening and closing of the second installation space 113.

In one embodiment, the substation video and environmental monitoring system centralized control box 100 further comprises a connection component 116. The closing structure 115 is detachably connected to the housing 10 through the connecting assembly 116.

the connecting assembly 116 may be a hinged connecting member.

in one embodiment, the housing 10 is provided with a plurality of first heat dissipation vents 114. And the plurality of first heat dissipation vents 114 are disposed in the housing 10 corresponding to the second installation space 113.

The plurality of first heat dissipation vents 114 are disposed on a portion of the housing 10 corresponding to the second installation space 113 formed by the housing 10 and the isolation structure 120. The cables in the second installation space 113 can be circulated with the outside air through the plurality of first heat dissipation vents 114, thereby preventing the cables in the second installation space 113 from being heated and burned. The number of the first heat dissipation vents 114 is not limited.

In one embodiment, the isolation structure 120 is provided with a plurality of second heat dissipation vents 121.

The isolation structure 120 is provided with a cable hole 122 and a cable hole 123. The fiber termination fusion-splicing cassette 30 is connected to the optical cable passing through the second installation space 113 through the cable hole 122. The optical cables and the electric cables in the second installation space 113 can enter the first installation space 112 through the cable holes 122 and the cable holes 123, and are connected with the devices in the first installation space 112.

The plurality of second heat dissipation vents 12 may be used for heat dissipation ventilation such that the first installation space 112 is in airflow communication with the second installation space 113.

In one embodiment, the substation video and environmental monitoring system centralized control box 100 further comprises a flame retardant. The flame retardant is disposed in the second installation space 113, and is used for preventing the cable and the optical fiber in the second installation space 113 from burning.

The flame retardant can be asbestos, carbon dioxide foam or glass fiber and the like which can prevent combustion and can isolate air. The second installation space 113 is a blocking layer for cables and optical fibers, and the cables and the optical fibers enter the first installation space 112 through the plurality of second heat dissipation vents 121.

Referring to fig. 4, in one embodiment, the substation video and environment monitoring system centralized control box 100 further includes a fiber termination fusion splice box 30. The fiber termination splice tray 30 is disposed within the first mounting space 112. And the optical fiber termination fusion-splicing cassette 30 is connected to the optical fiber cables passing through the second installation space 113 through the plurality of second heat dissipation vents 121.

The transformer substation video and environment monitoring system centralized control box 100 can provide multiple direct current 12V and alternating current 24V power supplies, and is provided with one optical fiber terminal fusion box 30, so that the transformer substation video and environment monitoring system distribution box can be used. At this time, the use number of the distribution boxes and the optical fiber boxes can be reduced through the substation video and environment monitoring system centralized control box 100. Therefore, the centralized control box 100 for the substation video and environment monitoring system can replace a plurality of traditional distribution boxes, and matching devices such as cables, signal transmission lines and cameras can be correspondingly reduced, so that the substation video and environment monitoring system is easier to manage and control in a centralized manner.

the optical fiber termination fusion splice tray 30 may be a 24-core optical fiber termination cassette, which connects a fiber core and a pigtail in an optical cable and is used to split one optical cable into a single optical fiber. Through the use quantity of the optical fiber box can be reduced by the optical fiber terminal fusion splice box 30, the utilization rate of the fiber core and the tail fiber of the optical cable is improved, and the problem that the utilization rate of the tail fiber in the optical fiber box is not high is solved.

In one embodiment, a substation video and environment monitoring system comprises a substation video and environment monitoring system centralized control box 100 as described in any one of the above. The substation video and environment monitoring system can provide multiple paths of direct current 12V and alternating current 24V power supplies through the substation video and environment monitoring system centralized control box 100, and is provided with one optical fiber terminal fusion box 30, so that the use of the distribution box of the substation video and environment monitoring system is met. At this time, the substation video and environment monitoring system can meet the power distribution use requirement of the substation video and environment monitoring system by adopting a small amount of the substation video and environment monitoring system centralized control box 100. Therefore, the centralized control box 100 for the substation video and environment monitoring system makes it easier to centrally manage and control the substation video and environment monitoring system.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.