WO2015184711A1 - Power distribution cabinet - Google Patents
Power distribution cabinet Download PDFInfo
- Publication number
- WO2015184711A1 WO2015184711A1 PCT/CN2014/087724 CN2014087724W WO2015184711A1 WO 2015184711 A1 WO2015184711 A1 WO 2015184711A1 CN 2014087724 W CN2014087724 W CN 2014087724W WO 2015184711 A1 WO2015184711 A1 WO 2015184711A1
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- WIPO (PCT)
- Prior art keywords
- cabinet body
- disposed
- power distribution
- distribution cabinet
- cabinet
- Prior art date
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B15/00—Supervisory desks or panels for centralised control or display
Definitions
- the utility model belongs to the field of electric power facilities, in particular to a power distribution cabinet.
- Switchgear is used to access, disconnect, control and protect subordinate lines and equipment. According to the capacity of the distribution system, it is divided into the medium-pressure primary cabinet from the high-pressure transformer to the medium-pressure part, and the medium-voltage secondary cabinet from the medium-pressure to the low-pressure part.
- the medium-voltage secondary cabinet is often called the ring network connection. Ring network cabinet.
- some of the nodes are not high in capacity, and can be replaced by low-cost ring network cabinets, but the installation size and interface form of the primary cabinet and the ring network cabinet are different, for example, usually In case of switch cabinet height 2300mm, depth 1600mm, ring network cabinet height 1600mm, depth 840mm.
- High-voltage live display devices are often used in various types of switchgear.
- the main circuit When the main circuit is equipped with high-voltage power, it outputs a low-voltage voltage signal through the principle of capacitance division, igniting the xenon lamp, and prompting with a light signal.
- the inductive components of the live display are installed directly on the mounting panel of the high-voltage equipment. The operating personnel can observe the indicator light to know which section of the main circuit is running, and the device is especially important when maintaining or testing the components in the cabinet.
- the detection and control under the charged state are not taken into account in the "five-proof" interface, and it is difficult to install and maintain the live display device under the condition of constant power, so as to reliably prevent The charging misoperation brings certain difficulties.
- the live display device needs to install the sensor in the busbar in the case of power failure, and needs to re-evacuate and re-calibrate the SF6 inert gas.
- the inductive components of the live display are directly mounted on the mounting panel of the high-voltage equipment, and cannot be directly removed. Due to the limited space position during installation and maintenance, it takes a long working time, which is not conducive to the improvement of work efficiency.
- the technical problem to be solved by the utility model is: designing a power distribution cabinet, which is modified by the existing ring network cabinet, and the cost thereof is lower than that of the switch cabinet, and is installed and maintained under the condition of constant power and no door opening, and can be operated
- the organization implements one-way forced blocking.
- the technical solution adopted to solve the above technical problem is: designing a power distribution cabinet, including a cabinet body, wherein the cabinet body is provided with a high-voltage charging display device lock, and a heat dissipation hole is disposed on a side wall thereof, including a cabinet.
- the high voltage live display device lock includes a sensor, and the sensor is electrically connected to the controller through the shielding wire, and the controller includes the inner a casing and an outer casing, a buckle is arranged on both sides of the inner casing, and the outer casing is provided with a card hole, the inner casing is provided with a plug-in type terminal block, and the outer casing is correspondingly arranged with a plug-in type terminal pin, corresponding to The external connection terminal is electrically connected to the plug-in type terminal pin; two bracket mounting holes are respectively disposed on two sides of the outer casing, the mounting bracket is provided with two L-shaped hanging legs, and the middle portion is provided with a
- the utility model has the beneficial effects that the power distribution cabinet of the utility model can be arranged side by side with other switch cabinets through the arrangement of the cabinet body and the installation holes, and since the ring network cabinet has the same function as the switch cabinet The external dimensions and interface form, therefore, it is not necessary to modify the original connecting line, such as the connecting busbar; in addition, since the power distribution cabinet is modified by using the existing ring network cabinet, the cost is lower than that of the switch cabinet, thereby saving The whole equipment cost; the utility model is installed and maintained under the condition of constant power and no door opening, and can realize one-way forced locking to the operating mechanism; adopts inductive sensor, non-contact measurement, safe and reliable, and convenient to maintain; The device for preventing accidental entry into the charging interval and preventing electrical misoperation can be used for indoor and outdoor high-voltage electrical equipment with a rated voltage of 6 to 35 kV.
- Figure 1 is a schematic view of the structure of the present invention
- Figure 3 is a schematic view of the display panel of the present invention
- Figure 4 is a schematic view of the outer surface of the outer casing of the utility model
- Figure 5 is a schematic view showing the structure of the card hole and the bracket mounting hole of the present invention.
- Figure 6 is a schematic view showing the structure of the inner casing and the outer casing of the present invention.
- FIG. 7 is a schematic view of the mounting bracket of the present invention
- FIG. 8 is a functional block diagram of the controller board of the present invention
- Figure 9 is a diagram showing the forced blocking circuit of the present invention.
- Figure 10 is a circuit diagram of the sensor of the present invention.
- Figure 11 is a circuit diagram of the integrated circuit board
- Figure 12 is a single circuit board circuit diagram
- Figure 13 is a schematic view of the mechanism of the mounting plate of the present invention.
- the cabinet body 28 is characterized in that: the cabinet body 28 is provided with a high-voltage charging display device lock, and the side wall is provided with a heat dissipation hole 29, including a neutral terminal 30 disposed on the cabinet body and a bottom plate fixed on the cabinet body. a screw 31, a wire hole 32 disposed on the cabinet body, a mounting rail 33 mounted on the cabinet body, a grounding terminal 34 disposed on the cabinet body, and a floor mounting bracket 35 disposed on the cabinet body;
- the frame 35 is provided with a fine adjustment screw hole 36 and a panel mounting hole 37.
- the high-voltage live display device comprises a controller 1 and a sensor 2, which is electrically connected to the controller 1 via a shielded wire 3, the controller 1 comprising an inner casing 9 and an outer casing 10, the card being disposed on both sides of the inner casing 9
- the buckle body 21 is correspondingly disposed with the card hole 20, the inner casing 9 is provided with a plug-in type terminal block, and the outer casing 10 is correspondingly provided with a plug-in type terminal pin corresponding to the plug-in type terminal block.
- the outer terminal is connected, and two bracket mounting holes 19 are respectively disposed on two sides of the outer casing 10.
- the mounting bracket 22 is provided with two L-shaped hanging legs 23, and a screwing screw 24 is disposed through the middle portion thereof, and the controller 1 further
- the main board includes: a display unit having an input end connected to the output end of the sensor 2 for displaying a charged state of the device under test; and a latching unit having an input end connected to the output end of the display unit for being When the measuring device is charged, the device under test is locked; the arithmetic unit amplifying unit; the voltage comparing unit; the PLC programming control unit; the relay function unit; the whistle alarm unit, and the inner casing 9 is corresponding to the plug-in terminal block setting single line Board, said outside
- the body 10 is provided with an integrated circuit board, and the plug-in type wiring pin and the external terminal are disposed on the integrated circuit board.
- the inner casing 9 further includes a display panel 8.
- the display panel 8 is provided with an indicator light 12, a self-test switch and The external power socket, the indicator light 12, the self-test switch are electrically connected to the main board, and the external power supply supplies auxiliary power to the controller 1.
- Each set of external contacts of the external connection terminal is connected to the normally closed contact of the relay on the main board, and the external connection terminal
- Each set of external contacts is respectively connected to the grounding knife auxiliary normally open contact 25 to realize one-way forced locking, and the sensor 2 includes an electrical signal amplifying circuit.
- the heat dissipation hole 29 is a mesh-shaped structure; the mounting rail 33 is fixedly connected to the cabinet 28 by screws.
- the power distribution cabinet of the utility model can be arranged side by side with other switch cabinets through the arrangement of the cabinet body and the installation holes, and since the ring network cabinet has the same external dimensions and interface forms as the switch cabinet, Therefore, it is not necessary to modify the original connecting line, such as the connecting busbar; in addition, since the power distribution cabinet is modified by using the existing ring network cabinet, the cost is lower than that of the switch cabinet, thereby saving the entire equipment cost.
- the sensor 2 should be installed to ensure that the air distance requirements under different voltage levels are met. Preferably, it is installed at the bottom of the corresponding high-voltage line post insulator 6.
- the supporting hose clamp 4 is used to fasten the pole 5 first, and the sensor 2 is installed in the branch.
- the controller 5 is connected to the rod 5 through the shielded wire 3 to ensure that the sensor 2 and the high voltage busbar 7 are facing each other, and the non-contact measurement is safe and reliable.
- the inductive and non-contact measurement are performed outside the safety distance, and the sensor 2 generates an induced charge under the action of the alternating electric field to form an induced current as an input signal of the device.
- the induced current signal is transmitted to the controller 1 through the cable.
- the signal is filtered to effectively remove various high-order harmonic signals.
- the power frequency 50Hz voltage signal is output, and then compensated.
- the operation amplifying unit after the detection process, enters the voltage comparison unit to perform voltage comparison, and then sends the compared signal to the PLC programming control unit for micro-processing discrimination, and finally outputs the two outputs, one output to the display unit, if the voltage is higher than Set the voltage threshold and judge that there is electricity.
- the indicator light 12 flashes red. If the voltage is lower than the set voltage threshold, it is judged as no power.
- the indicator light 12 flashes green, the other way is sent to the relay, and the control relay operates. When it is judged that there is power, the relay does not operate. When it is judged as no power, the normally closed contact of the relay is disconnected, and the normally closed contact of the relay is respectively It is connected with a set of external contacts of the external terminal block to control the blocking, and provides the node function for the microcomputer five defenses.
- the corresponding phase indicator light 12 emits a flashing alarm indication, and the controller 1 emits a whistle alarm.
- the hand When the device is removed, the hand is extended from the movable door of the instrument door, and the buckles on both sides of the inner casing 9 of the controller 1 are pulled outward, and the buckles are integrated with the buckles 21, and the buckles 21 are forcefully pulled out of the card holes 20, that is,
- the inner casing 9 can be pulled out, and the plug-in terminal block of the inner casing 9 is also unplugged from the plug-in terminal pin of the outer casing 10, and the inner casing 9 is separated from the outer casing 10, and the outer casing 10 left in the switchgear, the plug-in terminal block is electrically connected to the external terminal, and the controller 1 can be removed without opening and closing the door for maintenance, maintenance or replacement.
- the controller 1 has been removed from the control mechanism. No need to power off.
- the controller 1 is provided with a replaceable and rechargeable standby power source.
- the main power source When the main power source is powered off, it automatically switches to the standby power source; after the main power source is restored, the standby power source is automatically charged; when the main power source and the backup power source are not powered, the controller can pass
- the external power socket on the display panel 8 selects an external power supply to provide multiple power supply guarantees to ensure the normal operation of the live display device. Press the self-test button to perform a self-test on the software and hardware systems to prevent false indications due to hardware damage and internal faults.
- Figure 4 shows the outer end surface of the outer casing 10 of the present invention
- K1K2 is used to connect the first electromagnetic lock
- K3K4 is used to connect the second electromagnetic lock
- K5K6 is used to connect the microcomputer five defense
- L+N- is used to connect the working power supply
- the lower row ports are the signal line interface 16, the shield layer interface 17, and the ground end interface 18, respectively.
- Figure 9 shows the grounding knife forcibly blocking circuit.
- the controller 1 is provided with a plurality of external contacts, a set of external contacts connected to the relay I phase normally closed contact 26, and the relay II.
- a set of external contacts connected to the normally closed contact 27 are respectively connected with the grounding blade auxiliary normally open contact 25 to form a forced locking circuit, so that the one-direction forced locking can be realized. If the test has electricity, the I-phase and II-phase relays do not operate, and the grounding knife switch is normally open. If the test is not powered, the I-phase or II-phase relay operates, and the relay I-phase normally closed contact 26 and relay II are normally closed.
- Point 27 changes from normally closed to disconnected, 25 connected to it
- the grounding knife assists the normally open contact to close and achieve forced locking.
- the device can be reliably locked and instructed.
- the charged phase can be accurately indicated, and the locking device will not be unlocked.
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Abstract
A power distribution cabinet, which comprises a cabinet body (28). A high-voltage live display device lock is disposed in the cabinet body, and heat dissipation holes (29) are disposed in the sidewall of the cabinet body. The power distribution cabinet comprises zero terminals (30) disposed on the cabinet body, bottom plate fixing screws (31) disposed on the cabinet body, wire-passing holes (32) disposed in the cabinet body, a mounting rail (33) mounted on the cabinet body, grounding terminals (34) disposed on the cabinet body, and a bottom plate mounting frame (35) disposed on the cabinet body. The bottom plate mounting frame (35) is provided with fine adjustment screw holes (36) and panel mounting holes (37). As the power distribution cabinet has the same appearance size and interface form as a switch cabinet, the original connection line, such as a connection busbar, does not need to be changed; the power distribution cabinet can be applied to indoor and outdoor high-voltage electrical equipment with a rated voltage of 6-35 kV; an inductive sensor is used so that non-contact measurement is performed, a controller adopts a plug-in structural design, replacement can be made without cutting power or opening the door, and maintenance is convenient.
Description
技术领域Technical field
本实用新型属于电力设施领域，尤其涉及一种配电柜。The utility model belongs to the field of electric power facilities, in particular to a power distribution cabinet.
背景技术Background technique
开关柜用于接入、断开、控制和保护下级线路和设备。按配电***容量分为从高压变压到中压部分的中压一次柜，与从中压变压到低压部分的中压二次柜，中压二次柜因为常常环网联接，又称为环网柜。在实际安装运行中，在某些线路中，其中的某些节点容量并不高，可以用成本低廉的环网柜代替，但一次柜与环网柜的安装尺寸以及接口形式不同，例如，通常情况下，开关柜高度
2300mm, 深度 1600mm，环网柜高度 1600mm，深度
840mm。因此，无法将环网柜与开关柜并排设置和连接。因此，需要提供一种新型的配电柜，这种新型配电柜是通过对环网柜进行改造而成，并且该新型配电柜可以适应一次柜的接口形式。
Switchgear is used to access, disconnect, control and protect subordinate lines and equipment. According to the capacity of the distribution system, it is divided into the medium-pressure primary cabinet from the high-pressure transformer to the medium-pressure part, and the medium-voltage secondary cabinet from the medium-pressure to the low-pressure part. The medium-voltage secondary cabinet is often called the ring network connection. Ring network cabinet. In actual installation and operation, some of the nodes are not high in capacity, and can be replaced by low-cost ring network cabinets, but the installation size and interface form of the primary cabinet and the ring network cabinet are different, for example, usually In case of switch cabinet height
2300mm, depth 1600mm, ring network cabinet height 1600mm, depth
840mm. Therefore, it is not possible to arrange and connect the ring network cabinet and the switch cabinet side by side. Therefore, it is necessary to provide a new type of power distribution cabinet, which is transformed by a ring network cabinet, and the new power distribution cabinet can be adapted to the interface form of the primary cabinet.
在高压、超高压的电力***中，确保安全生产是十分重要的，在各类型开关柜中，经常使用高压带电显示装置。当主回路带有高压电时，它经过电容分压原理输出低压电压讯号，点燃氖灯，以灯光信号发出提示。带电显示的感应元件多直接安装在高压设备的安装面板上，运行人员观察指示灯就可了解哪一段主回路在带电运行，在维护或测试柜内元件时，该装置更显得尤为重要。
In high-voltage, ultra-high-voltage power systems, it is important to ensure safe production. High-voltage live display devices are often used in various types of switchgear. When the main circuit is equipped with high-voltage power, it outputs a low-voltage voltage signal through the principle of capacitance division, igniting the xenon lamp, and prompting with a light signal. The inductive components of the live display are installed directly on the mounting panel of the high-voltage equipment. The operating personnel can observe the indicator light to know which section of the main circuit is running, and the device is especially important when maintaining or testing the components in the cabinet.
但在现有运行的全封闭电站设计的时候，在“五防”接口方面没有考虑到带电状态下的检测和控制，很难在不断电的情况下安装和维护带电显示装置，给可靠的防止带电误操作带来一定的困难，带电显示装置需要在断电的情况下，在母线筒内安装传感器，需要重新抽空和重新标定SF6惰性气体。However, in the design of the existing fully enclosed power station, the detection and control under the charged state are not taken into account in the "five-proof" interface, and it is difficult to install and maintain the live display device under the condition of constant power, so as to reliably prevent The charging misoperation brings certain difficulties. The live display device needs to install the sensor in the busbar in the case of power failure, and needs to re-evacuate and re-calibrate the SF6 inert gas.
带电显示的感应元件多直接安装在高压设备的安装面板上，无法直接取下，安装和维护时因空间位置所限，需要付出较长的工作时间，不利于工作效率的提高。The inductive components of the live display are directly mounted on the mounting panel of the high-voltage equipment, and cannot be directly removed. Due to the limited space position during installation and maintenance, it takes a long working time, which is not conducive to the improvement of work efficiency.
发明内容Summary of the invention
本实用新型所要解决的技术问题是：设计一种配电柜，利用现有环网柜进行改造，其成本低于开关柜，在不断电、不开门的情况下安装和维护，并可对操作机构实现单向强制闭锁。The technical problem to be solved by the utility model is: designing a power distribution cabinet, which is modified by the existing ring network cabinet, and the cost thereof is lower than that of the switch cabinet, and is installed and maintained under the condition of constant power and no door opening, and can be operated The organization implements one-way forced blocking.
为了解决上述技术问题所采取的技术方案为：设计一种配电柜，包括柜体，其特征在于：所述柜体设置高压带电显示装置锁，其侧壁上设置散热孔，包括设置在柜体上的零线端子、设置在柜体上的底板固定螺丝、设置在柜体上的走线孔、安装在柜体上的安装轨、设置在柜体上的接地端子，及设置在柜体上的底板安装架；所述底板安装架上设置有微调螺丝孔和面板安装孔；所述高压带电显示装置锁包括传感器，所述传感器通过屏蔽线与控制器电连接，所述控制器包括内壳体和外壳体，内壳体两侧设置卡扣，外壳体对应设置卡孔，所述内壳体设置插拔式接线排母，外壳体对应设置适配的插拔式接线排针，对应于插拔式接线排针电连接设置外接线端子；所述外壳体两侧分别设置两个支架安装孔，安装支架设有两个L型挂脚，其中部贯通设置旋紧螺杆；所述控制器还包括主板，所述主板包含：显示单元，其输入端与传感器的输出端相连，用以显示被测设备的带电状态；闭锁单元，其输入端与显示单元的输出端相连，用以在被测设备带电时将被测设备闭锁；运算器放大单元；电压比较单元；PLC编程控制单元；继电器功能单元；鸣笛报警单元；所述内壳体对应于插拔式接线排母设置单线路板，所述外壳体设置综合线路板，插拔式接线排针和外接线端子设置在综合线路板上；所述内壳体还包括显示面板，显示面板上设有指示灯、自检开关和外接电源插孔，指示灯、自检开关与主板电连接，外接电源给控制器辅助供电；所述外接线端子的每组外接点连接主板上继电器的常闭触头，外接线端子的每组外接点分别与接地刀辅助常开触点连接，实现单向强制闭锁；所述传感器包括电信号放大电路；所述散热孔为网状形结构；所述安装轨与柜体通过螺丝固定连接。The technical solution adopted to solve the above technical problem is: designing a power distribution cabinet, including a cabinet body, wherein the cabinet body is provided with a high-voltage charging display device lock, and a heat dissipation hole is disposed on a side wall thereof, including a cabinet. a neutral terminal on the body, a bottom plate fixing screw disposed on the cabinet body, a wire hole disposed on the cabinet body, a mounting rail mounted on the cabinet body, a grounding terminal disposed on the cabinet body, and a cabinet body a bottom plate mounting frame; the bottom plate mounting frame is provided with a fine adjustment screw hole and a panel mounting hole; the high voltage live display device lock includes a sensor, and the sensor is electrically connected to the controller through the shielding wire, and the controller includes the inner a casing and an outer casing, a buckle is arranged on both sides of the inner casing, and the outer casing is provided with a card hole, the inner casing is provided with a plug-in type terminal block, and the outer casing is correspondingly arranged with a plug-in type terminal pin, corresponding to The external connection terminal is electrically connected to the plug-in type terminal pin; two bracket mounting holes are respectively disposed on two sides of the outer casing, the mounting bracket is provided with two L-shaped hanging legs, and the middle portion is provided with a screwing screw; The controller further includes a main board, the main board includes: a display unit, wherein the input end is connected to the output end of the sensor to display the charged state of the device under test; the latching unit has an input end connected to the output end of the display unit for The device under test is locked when the device under test is charged; the arithmetic unit amplifying unit; the voltage comparing unit; the PLC programming control unit; the relay function unit; the whistle alarm unit; and the inner casing corresponding to the plug-in terminal block setting list a circuit board, the outer casing is provided with an integrated circuit board, and the plug-in type terminal pin and the external connection terminal are disposed on the integrated circuit board; the inner casing further includes a display panel, and the display panel is provided with an indicator light and a self-test switch And the external power socket, the indicator light, the self-test switch and the main board are electrically connected, and the external power supply supplies auxiliary power to the controller; each set of external terminals of the external connection terminal is connected with the normally closed contact of the relay on the main board, and each of the external connection terminals The external contacts of the group are respectively connected with the grounding knife auxiliary normally open contacts to realize one-way forced locking; the sensor comprises an electric signal amplifying circuit; the heat dissipation holes are nets Shaped configuration; the mounting rail and the cabinet is fixed by a screw connection.
本实用新型的有益效果：本实用新型的配电柜，通过柜体与各安装孔的设置，可以将这种配电柜与其他开关柜并排设置，并且由于该环网柜具有与开关柜相同的外形尺寸和接口形式，因此，可以不必对原连接线路，如连接母排进行改动；另外，由于该配电柜利用现有环网柜进行改造，其成本低于开关柜，因此，节省了整个设备成本；本实用新型在不断电、不开门的情况下安装和维护，并可对操作机构实现单向强制闭锁；采用感应式传感器，非接触式测量，安全可靠，维护方便；是用来防止误入带电间隔和防止电气误操作的装置，可用于额定电压6～35kV的户内外高压电气设备。The utility model has the beneficial effects that the power distribution cabinet of the utility model can be arranged side by side with other switch cabinets through the arrangement of the cabinet body and the installation holes, and since the ring network cabinet has the same function as the switch cabinet The external dimensions and interface form, therefore, it is not necessary to modify the original connecting line, such as the connecting busbar; in addition, since the power distribution cabinet is modified by using the existing ring network cabinet, the cost is lower than that of the switch cabinet, thereby saving The whole equipment cost; the utility model is installed and maintained under the condition of constant power and no door opening, and can realize one-way forced locking to the operating mechanism; adopts inductive sensor, non-contact measurement, safe and reliable, and convenient to maintain; The device for preventing accidental entry into the charging interval and preventing electrical misoperation can be used for indoor and outdoor high-voltage electrical equipment with a rated voltage of 6 to 35 kV.
附图说明DRAWINGS
图1为本实用新型的结构示意图Figure 1 is a schematic view of the structure of the present invention
图2为本实用新型控制器整体结构示意图2 is a schematic view of the overall structure of the controller of the present invention
图3为本实用新型显示面板示意图Figure 3 is a schematic view of the display panel of the present invention
图4为本实用新型外壳体外端面示意图Figure 4 is a schematic view of the outer surface of the outer casing of the utility model
图5为本实用新型卡孔和支架安装孔结构示意图Figure 5 is a schematic view showing the structure of the card hole and the bracket mounting hole of the present invention
图6为本实用新型内壳体和外壳体结构示意图Figure 6 is a schematic view showing the structure of the inner casing and the outer casing of the present invention
图7为本实用新型安装支架示意图Figure 7 is a schematic view of the mounting bracket of the present invention
图8为本实用新型控制器主板功能框图Figure 8 is a functional block diagram of the controller board of the present invention
图9为本实用新型强制闭锁电路图Figure 9 is a diagram showing the forced blocking circuit of the present invention
图10为本实用新型传感器电路图Figure 10 is a circuit diagram of the sensor of the present invention
图11为综合线路板电路图Figure 11 is a circuit diagram of the integrated circuit board
图12为单线路板电路图Figure 12 is a single circuit board circuit diagram
图13为本实用新型安装板的机构示意图Figure 13 is a schematic view of the mechanism of the mounting plate of the present invention
图中：1控制器 2传感器 3屏蔽线 4软管夹 5支杆 6支柱绝缘子 7高压母排 8显示面板 9内壳体
10外壳体 11支架 12指示灯 13电磁锁接口 14微机五防接口 15工作电源接口 16信号线接口 17屏蔽层接口 18接地端接口 19支架安装孔 20卡孔
21卡扣 22安装支架 23挂脚 24旋紧螺杆 25 接地刀辅助常开触点 26 继电器I相常闭触点 27继电器II相常闭触点 28柜体
29散热孔；30零线端子；31底板固定螺丝；32走线孔；33安装轨；34接地端子；35底板安装架；36微调螺丝孔；37面板安装孔；38安装板。In the figure: 1 controller 2 sensor 3 shielded wire 4 hose clamp 5 pole 6 post insulator 7 high voltage busbar 8 display panel 9 inner casing
10 outer casing 11 bracket 12 indicator light 13 electromagnetic lock interface 14 microcomputer five-proof interface 15 working power interface 16 signal line interface 17 shield interface 18 ground end interface 19 bracket mounting hole 20 card hole
21 buckle 22 mounting bracket 23 hanging foot 24 tightening screw 25 grounding knife auxiliary normally open contact 26 relay I phase normally closed contact 27 relay II phase normally closed contact 28 cabinet
29 vents; 30 neutral terminals; 31 bottom plate fixing screws; 32 wire holes; 33 mounting rails; 34 grounding terminals; 35 bottom plate mounting brackets; 36 fine-tuning screw holes; 37 panel mounting holes; 38 mounting plates.
具体实施方式detailed description
如图所示，一种配电柜,
包括柜体28，其特征在于：所述柜体28设置高压带电显示装置锁，其侧壁上设置散热孔29，包括设置在柜体上的零线端子30、设置在柜体上的底板固定螺丝31、设置在柜体上的走线孔32、安装在柜体上的安装轨33、设置在柜体上的接地端子34，及设置在柜体上的底板安装架35；所述底板安装架35上设置有微调螺丝孔36和面板安装孔37。As shown in the figure, a power distribution cabinet,
The cabinet body 28 is characterized in that: the cabinet body 28 is provided with a high-voltage charging display device lock, and the side wall is provided with a heat dissipation hole 29, including a neutral terminal 30 disposed on the cabinet body and a bottom plate fixed on the cabinet body. a screw 31, a wire hole 32 disposed on the cabinet body, a mounting rail 33 mounted on the cabinet body, a grounding terminal 34 disposed on the cabinet body, and a floor mounting bracket 35 disposed on the cabinet body; The frame 35 is provided with a fine adjustment screw hole 36 and a panel mounting hole 37.
高压带电显示装置包括控制器1和传感器2，所述传感器2通过屏蔽线3与控制器1电连接，所述控制器1包括内壳体9和外壳体10，内壳体9两侧设置卡扣21，外壳体10对应设置卡孔20，所述内壳体9设置插拔式接线排母，外壳体10对应设置适配的插拔式接线排针，对应于插拔式接线排针电连接设置外接线端子，所述外壳体10两侧分别设置两个支架安装孔19，安装支架22设有两个L型挂脚23，其中部贯通设置旋紧螺杆24，所述控制器1还包括主板，所述主板包含：显示单元，其输入端与传感器2的输出端相连，用以显示被测设备的带电状态；闭锁单元，其输入端与显示单元的输出端相连，用以在被测设备带电时将被测设备闭锁；运算器放大单元；电压比较单元；PLC编程控制单元；继电器功能单元；鸣笛报警单元，所述内壳体9对应于插拔式接线排母设置单线路板，所述外壳体10设置综合线路板，插拔式接线排针和外接线端子设置在综合线路板上，所述内壳体9还包括显示面板8，显示面板8上设有指示灯12、自检开关和外接电源插孔，指示灯12、自检开关与主板电连接，外接电源给控制器1辅助供电，所述外接线端子的每组外接点连接主板上继电器的常闭触头，外接线端子的每组外接点分别与接地刀辅助常开触点25连接，实现单向强制闭锁，所述传感器2包括电信号放大电路。所述散热孔29为网状形结构；所述安装轨33与柜体28通过螺丝固定连接。The high-voltage live display device comprises a controller 1 and a sensor 2, which is electrically connected to the controller 1 via a shielded wire 3, the controller 1 comprising an inner casing 9 and an outer casing 10, the card being disposed on both sides of the inner casing 9 The buckle body 21 is correspondingly disposed with the card hole 20, the inner casing 9 is provided with a plug-in type terminal block, and the outer casing 10 is correspondingly provided with a plug-in type terminal pin corresponding to the plug-in type terminal block. The outer terminal is connected, and two bracket mounting holes 19 are respectively disposed on two sides of the outer casing 10. The mounting bracket 22 is provided with two L-shaped hanging legs 23, and a screwing screw 24 is disposed through the middle portion thereof, and the controller 1 further The main board includes: a display unit having an input end connected to the output end of the sensor 2 for displaying a charged state of the device under test; and a latching unit having an input end connected to the output end of the display unit for being When the measuring device is charged, the device under test is locked; the arithmetic unit amplifying unit; the voltage comparing unit; the PLC programming control unit; the relay function unit; the whistle alarm unit, and the inner casing 9 is corresponding to the plug-in terminal block setting single line Board, said outside The body 10 is provided with an integrated circuit board, and the plug-in type wiring pin and the external terminal are disposed on the integrated circuit board. The inner casing 9 further includes a display panel 8. The display panel 8 is provided with an indicator light 12, a self-test switch and The external power socket, the indicator light 12, the self-test switch are electrically connected to the main board, and the external power supply supplies auxiliary power to the controller 1. Each set of external contacts of the external connection terminal is connected to the normally closed contact of the relay on the main board, and the external connection terminal Each set of external contacts is respectively connected to the grounding knife auxiliary normally open contact 25 to realize one-way forced locking, and the sensor 2 includes an electrical signal amplifying circuit. The heat dissipation hole 29 is a mesh-shaped structure; the mounting rail 33 is fixedly connected to the cabinet 28 by screws.
本实用新型的配电柜，通过柜体与各安装孔的设置，可以将这种配电柜与其他开关柜并排设置，并且由于该环网柜具有与开关柜相同的外形尺寸和接口形式，因此，可以不必对原连接线路，如连接母排进行改动；另外，由于该配电柜利用现有环网柜进行改造，其成本低于开关柜，因此，节省了整个设备成本。
The power distribution cabinet of the utility model can be arranged side by side with other switch cabinets through the arrangement of the cabinet body and the installation holes, and since the ring network cabinet has the same external dimensions and interface forms as the switch cabinet, Therefore, it is not necessary to modify the original connecting line, such as the connecting busbar; in addition, since the power distribution cabinet is modified by using the existing ring network cabinet, the cost is lower than that of the switch cabinet, thereby saving the entire equipment cost.
安装时，挂脚23穿入支架安装孔19，向里推动控制器1，依靠挂脚23的L型结构挂牢控制器1，然后拧紧旋紧螺杆24，通过旋紧螺杆24固定到开关柜上。传感器2安装应确保满足对应不同电压等级下的空气距离要求，优选的，安装在对应高压线路支柱绝缘子6的底部，采用配套的软管夹4先将支杆5紧固，传感器2安装在支杆5上并通过屏蔽线3连接控制器1，确保传感器2与高压母排7正对，非接触式测量，安全可靠。During installation, the hanging leg 23 penetrates into the bracket mounting hole 19, pushes the controller 1 inward, and the controller 1 is fastened by the L-shaped structure of the hanging leg 23, and then the tightening screw 24 is tightened and fixed to the switch cabinet by the tightening screw 24. . The sensor 2 should be installed to ensure that the air distance requirements under different voltage levels are met. Preferably, it is installed at the bottom of the corresponding high-voltage line post insulator 6. The supporting hose clamp 4 is used to fasten the pole 5 first, and the sensor 2 is installed in the branch. The controller 5 is connected to the rod 5 through the shielded wire 3 to ensure that the sensor 2 and the high voltage busbar 7 are facing each other, and the non-contact measurement is safe and reliable.
利用传感器2与高压交变电场之间的电场耦合原理，在安全距离之外进行感应式、非接触式测量，传感器2在交变电场的作用下产生感应电荷，形成感应电流作为装置的输入信号，经过内部放大后，通过电缆把此感应电流信号传送到控制器1。信号经滤波处理，有效清除各种高次谐波信号，经过电流/电压变换，输出工频50Hz电压信号，再经补偿、
运算放大单元，检波处理后进入电压比较单元进行电压比对，再将比对后的信号送入PLC编程控制单元进行微处理判别，最终分两路输出，一路输出到显示单元，如果电压高于设定电压门值，判为有电，
指示灯12闪显示红色，如果电压低于设定电压门值，判为无电，
指示灯12闪显示绿色，另一路送入继电器，控制继电器动作，判为有电时，继电器不动作，判为无电时，则继电器的常闭触点断开，继电器的常闭触头分别与外接线端子的一组外接点连接，用于控制闭锁，给微机五防提供节点功能。Using the principle of electric field coupling between the sensor 2 and the high-voltage alternating electric field, the inductive and non-contact measurement are performed outside the safety distance, and the sensor 2 generates an induced charge under the action of the alternating electric field to form an induced current as an input signal of the device. After the internal amplification, the induced current signal is transmitted to the controller 1 through the cable. The signal is filtered to effectively remove various high-order harmonic signals. After current/voltage conversion, the power frequency 50Hz voltage signal is output, and then compensated.
The operation amplifying unit, after the detection process, enters the voltage comparison unit to perform voltage comparison, and then sends the compared signal to the PLC programming control unit for micro-processing discrimination, and finally outputs the two outputs, one output to the display unit, if the voltage is higher than Set the voltage threshold and judge that there is electricity.
The indicator light 12 flashes red. If the voltage is lower than the set voltage threshold, it is judged as no power.
The indicator light 12 flashes green, the other way is sent to the relay, and the control relay operates. When it is judged that there is power, the relay does not operate. When it is judged as no power, the normally closed contact of the relay is disconnected, and the normally closed contact of the relay is respectively It is connected with a set of external contacts of the external terminal block to control the blocking, and provides the node function for the microcomputer five defenses.
当传感器2与控制器1间连接的屏蔽线3发生断线或未接时,对应相指示灯12发出闪烁报警指示，同时控制器1发出鸣笛警报。When the shielded wire 3 connected between the sensor 2 and the controller 1 is disconnected or missed, the corresponding phase indicator light 12 emits a flashing alarm indication, and the controller 1 emits a whistle alarm.
拆下时，从仪表门活动窗伸手进去，捏住控制器1内壳体9两侧的扣耳向外拖动，扣耳与卡扣21一体，卡扣21受力脱出卡孔20，即可拔出内壳体9，此时内壳体9的插拔式接线排母也从外壳体10的插拔式接线排针上拔下，内壳体9从外壳体10上分离，外壳体10留在开关柜内，其插拔式接线排针电连接外接线端子，不必开关门即可拆下控制器1，进行检修、维护或者更换，控制器1已经从操控机构上拆下自然也不必断电。When the device is removed, the hand is extended from the movable door of the instrument door, and the buckles on both sides of the inner casing 9 of the controller 1 are pulled outward, and the buckles are integrated with the buckles 21, and the buckles 21 are forcefully pulled out of the card holes 20, that is, The inner casing 9 can be pulled out, and the plug-in terminal block of the inner casing 9 is also unplugged from the plug-in terminal pin of the outer casing 10, and the inner casing 9 is separated from the outer casing 10, and the outer casing 10 left in the switchgear, the plug-in terminal block is electrically connected to the external terminal, and the controller 1 can be removed without opening and closing the door for maintenance, maintenance or replacement. The controller 1 has been removed from the control mechanism. No need to power off.
控制器1设置可更换、可充电的备用电源，当主电源掉电时，自动切换到备用电源工作；主电源恢复后，自动对备用电源进线充电；主电源和备用电源不供电时，可以通过显示面板8上的外接电源插孔选择外置电源供电，起到多重电源保障作用，确保带电显示装置的正常运行。 按下自检按钮，可对软、硬件***进行自检，可防止由于硬件损坏及内部故障而造成的误指示。The controller 1 is provided with a replaceable and rechargeable standby power source. When the main power source is powered off, it automatically switches to the standby power source; after the main power source is restored, the standby power source is automatically charged; when the main power source and the backup power source are not powered, the controller can pass The external power socket on the display panel 8 selects an external power supply to provide multiple power supply guarantees to ensure the normal operation of the live display device. Press the self-test button to perform a self-test on the software and hardware systems to prevent false indications due to hardware damage and internal faults.
图4所示为本实用新型外壳体10的外端面，K1K2用于连接第一电磁锁，K3K4用于连接第二电磁锁，K5K6用于连接微机五防，L+N-用于连接工作电源，下排端口分别为信号线接口16、屏蔽层接口17、接地端接口18。
Figure 4 shows the outer end surface of the outer casing 10 of the present invention, K1K2 is used to connect the first electromagnetic lock, K3K4 is used to connect the second electromagnetic lock, K5K6 is used to connect the microcomputer five defense, L+N- is used to connect the working power supply The lower row ports are the signal line interface 16, the shield layer interface 17, and the ground end interface 18, respectively.
图9所示为接地刀强制闭锁电路，以两相母线测试为例，在控制器1上设有若干外接点，与继电器I相常闭触点26连接的一组外接点、与继电器II相常闭触点27连接的一组外接点分别与接地刀辅助常开触点25连接，组成强制闭锁回路，就可以实现单方向的强制闭锁。如果测试有电，I相和II相继电器不动作，接地刀开关处于常开，如果测试无电，则I相或II相继电器动作，继电器I相常闭触点26和继电器II相常闭触点27由常闭变为断开，与之相连的25
接地刀辅助常开触点闭合，达到强制闭锁。***中高压带电时，装置能可靠闭锁并指示，任意一相或两相失电时，能准确指示带电相，闭锁装置不会解锁。Figure 9 shows the grounding knife forcibly blocking circuit. Taking the two-phase busbar test as an example, the controller 1 is provided with a plurality of external contacts, a set of external contacts connected to the relay I phase normally closed contact 26, and the relay II. A set of external contacts connected to the normally closed contact 27 are respectively connected with the grounding blade auxiliary normally open contact 25 to form a forced locking circuit, so that the one-direction forced locking can be realized. If the test has electricity, the I-phase and II-phase relays do not operate, and the grounding knife switch is normally open. If the test is not powered, the I-phase or II-phase relay operates, and the relay I-phase normally closed contact 26 and relay II are normally closed. Point 27 changes from normally closed to disconnected, 25 connected to it
The grounding knife assists the normally open contact to close and achieve forced locking. When the system is powered by high voltage, the device can be reliably locked and instructed. When any phase or two phases are de-energized, the charged phase can be accurately indicated, and the locking device will not be unlocked.
需要指出的是，上述实施方式仅是本实用新型优选的实施例，对于本技术领域的普通技术人员来说，在符合本实用新型工作原理的前提下，任何等同或相似的替换均落入本实用新型的保护范围内。It should be noted that the above embodiments are merely preferred embodiments of the present invention. For those skilled in the art, any equivalent or similar replacements are included in the present invention in accordance with the working principle of the present invention. The scope of protection of utility models.
Claims (10)
- 一种配电柜，包括柜体，其特征在于：所述柜体设置高压带电显示装置锁，其侧壁上设置散热孔，包括设置在柜体上的零线端子、设置在柜体上的底板固定螺丝、设置在柜体上的走线孔、安装在柜体上的安装轨、设置在柜体上的接地端子，及设置在柜体上的底板安装架；所述底板安装架上设置有微调螺丝孔和面板安装孔。 A power distribution cabinet includes a cabinet body, wherein the cabinet body is provided with a high-voltage charging display device lock, and a heat dissipation hole is disposed on a side wall thereof, including a neutral terminal disposed on the cabinet body and disposed on the cabinet body a bottom plate fixing screw, a wire hole disposed on the cabinet body, a mounting rail mounted on the cabinet body, a grounding terminal disposed on the cabinet body, and a bottom plate mounting frame disposed on the cabinet body; the bottom plate mounting frame is disposed There are fine adjustment screw holes and panel mounting holes.
- 根据权利要求 1 所述的一种配电柜 , 其特征在于，所述 高压带电显示装置锁包括传感器， 所述传感器通过屏蔽线与控制器电连接，所述控制器包括内壳体和外壳体，内壳体两侧设置卡扣，外壳体对应设置卡孔，所述内壳体设置插拔式接线排母，外壳体对应设置适配的插拔式接线排针，对应于插拔式接线排针电连接设置外接线端子。A power distribution cabinet according to claim 1, wherein said high voltage live display device lock comprises a sensor, The controller is electrically connected to the controller through a shielded wire. The controller includes an inner casing and an outer casing. The inner casing is provided with a buckle on both sides, and the outer casing is correspondingly provided with a card hole, and the inner casing is provided with a plug-in connection. The female terminal and the outer casing are correspondingly arranged with the plug-in type terminal pin, and the outer connecting terminal is corresponding to the plug-type terminal pin electrical connection.
- 根据权利要求 2 所述的一种配电柜 , 其特征在于，所述外壳体两侧分别设置两个支架安装孔，安装支架设有两个 L 型挂脚，其中部贯通设置旋紧螺杆。A power distribution cabinet according to claim 2, wherein two mounting holes are respectively arranged on two sides of the outer casing, and two mounting brackets are provided. The type of hanging foot is provided with a screwing screw through the middle portion.
- 根据权利要求 2 所述的一种配电柜 , 其特征在于，所述控制器还包括主板，所述主板包含：显示单元，其输入端与传感器的输出端相连，用以显示被测设备的带电状态；闭锁单元，其输入端与显示单元的输出端相连，用以在被测设备带电时将被测设备闭锁；运算器放大单元；电压比较单元； PLC 编程控制单元；继电器功能单元；鸣笛报警单元。A power distribution cabinet according to claim 2, The controller further includes a main board, the main board includes: a display unit, wherein the input end is connected to the output end of the sensor to display the charged state of the device under test; the latching unit, the input end thereof and the display unit The output ends are connected to block the device under test when the device under test is charged; the arithmetic unit amplifying unit; the voltage comparing unit; PLC programming control unit; relay function unit; whistle alarm unit.
- 根据权利要求 2 所述的一种配电柜 , 其特征在于，所述内壳体对应于插拔式接线排母设置单线路板，所述外壳体设置综合线路板，插拔式接线排针和外接线端子设置在综合线路板上。A power distribution cabinet according to claim 2, The inner casing is provided with a single circuit board corresponding to the plug-in type busbar, and the outer casing is provided with an integrated circuit board, and the plug-in type terminal pin and the external connection terminal are disposed on the integrated circuit board.
- 根据权利要求 2 所述的一种配电柜 , 其特征在于，所述内壳体还包括显示面板，显示面板上设有指示灯、自检开关和外接电源插孔，指示灯、自检开关与主板电连接，外接电源给控制器辅助供电。A power distribution cabinet according to claim 2, The inner casing further includes a display panel. The display panel is provided with an indicator light, a self-test switch and an external power jack. The indicator light and the self-test switch are electrically connected to the main board, and the external power supply supplies auxiliary power to the controller.
- 根据权利要求 2 所述的一种配电柜 , 其特征在于，所述外接线端子的每组外接点连接主板上继电器的常闭触头，外接线端子的每组外接点分别与接地刀辅助常开触点连接，实现单向强制闭锁。A power distribution cabinet according to claim 2, The utility model is characterized in that each set of external contacts of the external connection terminal is connected to the normally closed contact of the relay on the main board, and each set of external contact points of the external connection terminal is respectively connected with the grounding knife auxiliary normally open contact to realize one-way forced locking.
- 根据权利要求 2 所述的一种配电柜 , 其特征在于，所述传感器包括电信号放大电路。A power distribution cabinet according to claim 2, wherein said sensor comprises an electrical signal amplifying circuit.
- 根据权利要求 1 所述的一种配电柜 , 其特征在于， 所述散热孔为网状形结构。The power distribution cabinet according to claim 1, wherein the heat dissipation holes have a mesh structure.
- 根据权利要求 1 所述的一种配电柜 , 其特征在于， 所述安装轨与柜体通过螺丝固定连接。 A power distribution cabinet according to claim 1, wherein the mounting rail and the cabinet are fixedly connected by screws.
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| CN107731591A (en) * | 2017-11-24 | 2018-02-23 | 彭显刚 | A kind of ring main unit five-prevention interlocking device |
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| CN108761177A (en) * | 2018-08-16 | 2018-11-06 | 广东电网有限责任公司 | High voltage display device |
| CN108776256A (en) * | 2018-08-01 | 2018-11-09 | 广东电网有限责任公司 | Switch cabinet electrified display device |
| CN109672107A (en) * | 2017-10-13 | 2019-04-23 | 广东易正电气股份有限公司 | A kind of high voltage power distributing cabinet |
| CN110504636A (en) * | 2019-09-25 | 2019-11-26 | 江苏华富电力科技有限公司 | Landscape advertising lamp house formula minimizes substation |
| WO2020061800A1 (en) * | 2018-09-26 | 2020-04-02 | 刘婷婷 | High-voltage cabinet capable of performing heat dissipation and dehumidification |
| CN113991444A (en) * | 2021-11-24 | 2022-01-28 | 广东电网有限责任公司 | Distribution box capable of being closed during maintenance grounding work |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106468899A (en) * | 2016-08-31 | 2017-03-01 | 天津市振津石油天然气工程有限公司 | Join the host computer of cabinet and the communication connecting system of distribution loop based on intelligent relay |
| CN106468899B (en) * | 2016-08-31 | 2023-08-08 | 天津市振津石油天然气工程有限公司 | Communication connection system of upper computer and distribution circuit based on intelligent relay cross cabinet |
| CN109672107A (en) * | 2017-10-13 | 2019-04-23 | 广东易正电气股份有限公司 | A kind of high voltage power distributing cabinet |
| CN107731591A (en) * | 2017-11-24 | 2018-02-23 | 彭显刚 | A kind of ring main unit five-prevention interlocking device |
| CN107770977A (en) * | 2017-11-27 | 2018-03-06 | 国网安徽省电力公司黄山供电公司 | A kind of high-voltage charge display device device |
| CN108258607A (en) * | 2018-03-12 | 2018-07-06 | 川开电气有限公司 | A kind of switchgear difference handcart is into vehicle device for identifying |
| CN108776256A (en) * | 2018-08-01 | 2018-11-09 | 广东电网有限责任公司 | Switch cabinet electrified display device |
| CN108761177A (en) * | 2018-08-16 | 2018-11-06 | 广东电网有限责任公司 | High voltage display device |
| WO2020061800A1 (en) * | 2018-09-26 | 2020-04-02 | 刘婷婷 | High-voltage cabinet capable of performing heat dissipation and dehumidification |
| CN110504636A (en) * | 2019-09-25 | 2019-11-26 | 江苏华富电力科技有限公司 | Landscape advertising lamp house formula minimizes substation |
| CN113991444A (en) * | 2021-11-24 | 2022-01-28 | 广东电网有限责任公司 | Distribution box capable of being closed during maintenance grounding work |
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