CN221669285U - A miniaturized intelligent GGD cabinet - Google Patents

A miniaturized intelligent GGD cabinet Download PDF

Info

Publication number
CN221669285U
CN221669285U CN202322526609.XU CN202322526609U CN221669285U CN 221669285 U CN221669285 U CN 221669285U CN 202322526609 U CN202322526609 U CN 202322526609U CN 221669285 U CN221669285 U CN 221669285U
Authority
CN
China
Prior art keywords
cabinet
circuit breaker
ggd
measurement
control terminal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202322526609.XU
Other languages
Chinese (zh)
Inventor
陈星燃
邓丽文
缪新招
胡日鹏
罗林欢
刘潇建
谷云
彭伟骏
李仕君
王静楠
许凯旋
麦栋明
于建军
余恩赐
陈绍庆
黎灏林
吴剑华
张俊业
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Haihong Electric Co Ltd
Original Assignee
Guangzhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Haihong Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Power Supply Bureau of Guangdong Power Grid Co Ltd, Haihong Electric Co Ltd filed Critical Guangzhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority to CN202322526609.XU priority Critical patent/CN221669285U/en
Application granted granted Critical
Publication of CN221669285U publication Critical patent/CN221669285U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Patch Boards (AREA)

Abstract

The utility model discloses a miniaturized intelligent GGD cabinet, which relates to the technical field of electric cabinets and comprises a cabinet body and a detection device, wherein an isolating switch is arranged at the upper part of the cabinet body, a circuit breaker is arranged below the isolating switch, two circuit breakers are connected in parallel to the output end of the isolating switch through a connecting copper bar, the connecting copper bar is positioned behind the circuit breaker, the connecting copper bar is beneficial to reducing the height of the GGD cabinet, a middle copper bar is arranged on the connecting copper bar, two adjacent middle copper bars are laminated along the height direction of the cabinet body, so that avoidance of the two adjacent middle copper bars is realized, the spatial distribution of internal equipment of the GGD cabinet is more compact, the reduction of the volume of the GGD cabinet is facilitated, the upgrading and transformation of the GGD cabinet are facilitated, the detection device is provided with a measurement and control terminal, a current transformer and a monitoring background, the current transformer is arranged on the outgoing copper bar of the circuit breaker, and the measurement and control terminal measures three-phase current values and voltage values in a loop, and the electrical parameters in the loop are fed back to the monitoring background, so that the intelligent control and intelligent upgrading of the GGD cabinet are realized.

Description

Miniaturized intelligent GGD cabinet
Technical Field
The utility model relates to the technical field of electric cabinets, in particular to a miniaturized intelligent GGD cabinet.
Background
The GGD cabinet, namely the alternating-current low-voltage power distribution cabinet, is suitable for power distribution of power plants, substations, factories, mining enterprises and the like, and has the advantages of reasonable mechanism, convenience in installation and maintenance, good protective performance, large capacity, strong sectioning capability, strong dynamic stability, wide applicability of an electrical appliance scheme and the like; at present, with the continuous development of urbanization, early box-type transformers or racks become unable to meet the current demands, in the upgrading and reconstruction of GGD cabinets, the capacity of power equipment in the GGD cabinets is required to be continuously enlarged, so that the volume of the GGD cabinets is continuously enlarged along with the upgrading and reconstruction, and meanwhile, with the construction of intelligent development, the intelligent upgrading of the GGD cabinets is also a problem facing the upgrading and reconstruction of the GGD cabinets.
Disclosure of utility model
The utility model aims to at least solve one of the technical problems in the prior art, and provides a miniaturized intelligent GGD cabinet, which is favorable for upgrading and reforming the GGD cabinet and realizes miniaturization and intellectualization of the GGD cabinet.
According to an embodiment of the present utility model, there is provided a miniaturized intelligent GGD cabinet including:
The cabinet body, install the disconnecting switch in the upper portion of the cabinet body, install the circuit breaker below the disconnecting switch, disconnecting switch one end is connected with main bus electricity, two circuit breakers connect in parallel and insert the output of the disconnecting switch through connecting the copper bar, connect the copper bar to locate at the rear of the circuit breaker, connect the copper bar to have middle copper bar, two adjacent middle copper bars are laminated along the height direction of the cabinet body;
The detection device is provided with a measurement and control terminal, a current transformer and a monitoring background, wherein one end of the circuit breaker is provided with an outgoing copper bar, the current transformer is arranged on the outgoing copper bar, the measurement and control terminal measures three-phase current values in the current transformer and voltage values in the connection copper bar, and the measurement and control terminal feeds back the electric parameters in the loop to the monitoring background after calculation.
The miniaturized intelligent GGD cabinet has at least the following beneficial effects: the embodiment is provided with a cabinet body and a detection device, wherein an isolating switch is arranged on the upper part of the cabinet body, a circuit breaker is arranged below the isolating switch, one end of the isolating switch is connected with a main bus, two circuit breakers are connected with the output end of the isolating switch in parallel through a connecting copper bar, the connecting copper bar is positioned at the rear of the circuit breaker, the height of the GGD cabinet is reduced, the connecting copper bar is provided with a middle copper bar, two adjacent middle copper bars are laminated along the height direction of the cabinet body, so that the avoidance of the two adjacent middle copper bars is realized, the space distribution of internal equipment of the GGD cabinet is more compact, the size of the GGD cabinet is reduced, and the upgrading and the transformation of the GGD cabinet are facilitated;
The detection device is provided with a measurement and control terminal, a current transformer and a monitoring background, wherein one end of the circuit breaker is provided with an outgoing copper bar, the current transformer is arranged on the outgoing copper bar, the measurement and control terminal measures three-phase current values in the current transformer and voltage values in the connection copper bar, the measurement and control terminal calculates electric parameters in a loop to obtain the electric parameters such as active power and reactive power in the loop, and the measurement and control terminal feeds the electric parameters in the loop back to the monitoring background, so that intelligent detection control of the GGD cabinet is realized, and intelligent upgrading and transformation of the GGD cabinet are facilitated.
According to the miniaturized intelligent GGD cabinet, the connecting copper bar is provided with a first connecting end connected with the isolating switch and a second connecting end connected with the circuit breaker, and the two second connecting ends are connected with the first connecting end through the middle copper bar.
According to the miniaturized intelligent GGD cabinet, the measurement and control terminal and the circuit breaker are electrically connected through the wiring terminal, so that the opening and closing states of the circuit breaker are detected.
According to the miniaturized intelligent GGD cabinet, the measurement and control terminal takes electricity from the copper bar contact point so as to obtain a voltage value.
According to the miniaturized intelligent GGD cabinet, the detection device is provided with the protection melting core, and the protection melting core is used for connecting the copper bar contact and the measurement and control terminal so as to protect a power supply loop of the measurement and control terminal.
According to the miniaturized intelligent GGD cabinet, the breaker is provided with the shunt coil, and the shunt coil is connected to the measurement and control terminal so as to realize that the measurement and control terminal controls the opening and closing of the breaker.
According to the miniaturized intelligent GGD cabinet, when the upper circuit is provided with the disconnecting switch or the drawer-type circuit breaker, the circuit breaker is connected to the main bus.
According to the miniaturized intelligent GGD cabinet, the cabinet door is covered on the cabinet body, and the measurement and control terminal is arranged on the cabinet door.
According to the miniaturized intelligent GGD cabinet, the cabinet body is provided with a first mounting beam for mounting the isolating switch, and the cabinet body is provided with a second mounting beam for mounting the circuit breaker.
According to the miniaturized intelligent GGD cabinet, the cabinet body is provided with the auxiliary element mounting beam, and the wiring terminal and the protection melting core are mounted on the auxiliary element mounting beam.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The utility model is further described below with reference to the drawings and examples;
FIG. 1 is an isometric view of a miniaturized intelligent GGD cabinet according to an embodiment of the utility model;
FIG. 2 is a side view of a miniaturized intelligent GGD cabinet according to an embodiment of the utility model;
FIG. 3 is a rear view of a miniaturized intelligent GGD cabinet in accordance with an embodiment of the present utility model;
FIG. 4 is a schematic diagram of a detecting device according to an embodiment of the present utility model;
fig. 5 is a schematic diagram of a connection manner of a circuit breaker according to an embodiment of the present utility model;
Fig. 6 is a schematic diagram of another connection mode of the circuit breaker according to the embodiment of the present utility model.
Reference numerals:
A cabinet 100; a first mounting beam 101; a second mounting beam 102; an auxiliary element mounting beam 103; a cabinet door 104; an isolation switch 110; a circuit breaker 120; a wire copper bar 121; a measurement and control terminal 130; a current transformer 140; a connection terminal 150; copper bar contacts 160; protecting the melt core 170;
Connecting copper bars 200; an intermediate copper bar 210, a first connection end 220; a second connection 230.
Detailed Description
Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.
In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Referring to fig. 1 and 5, an embodiment of the present utility model provides a miniaturized intelligent GGD cabinet, including a cabinet body 100, a first mounting beam 101 is provided at an upper portion of the cabinet body 100, a disconnecting switch 110 is installed on the first mounting beam 101, a second mounting beam 102 is provided below the disconnecting switch 110, a circuit breaker 120 is installed on the second mounting beam 102, one end of the disconnecting switch 110 is electrically connected with a main bus, two circuit breakers 120 are connected in parallel to the disconnecting switch 110 through a connection copper bar 200, and the connection copper bar 200 is located at a rear of the circuit breaker 120, which is beneficial to reducing a height of the GGD cabinet, so as to reduce a volume of the GGD cabinet.
Referring to fig. 1 to 3, the connection copper bar 200 is provided with a first connection end 220 connected to the isolating switch 110 and a second connection end 230 connected to the circuit breaker 120, the connection copper bar 200 is provided with a middle copper bar 210, and the two second connection ends 230 are connected to the first connection end 220 through the middle copper bar 210, so that the two circuit breakers 120 are connected to the isolating switch 110 in parallel, the circuit breaker 120 is a three-phase circuit breaker, the first connection end 220 and the middle copper bar 210 are respectively provided with three, and the adjacent two middle copper bars 210 are laminated along the height direction of the cabinet body 100, so that the avoidance of the adjacent two middle copper bars 210 is realized, the space distribution of equipment inside the GGD cabinet is more compact, the lengths of the adjacent two first connection ends 220 are correspondingly changed along with the lamination position of the middle copper bar 210, the size of the GGD cabinet is reduced, and the miniaturized upgrade transformation of the GGD cabinet is realized.
Referring to fig. 5 and fig. 6, in an embodiment, an isolating switch 110 is disposed in the GGD cabinet, one end of the isolating switch 110 is electrically connected with a main bus, and two circuit breakers 120 are connected in parallel to the output end of the isolating switch 110, so as to provide an obvious breakpoint for the circuit during maintenance, and avoid the upper level switch from being turned on by mistake, so as to ensure the safety of maintenance personnel; optionally, when the upper circuit of the GGD cabinet is provided with the disconnecting switch 110 or the drawer-type circuit breaker, the disconnecting switch 110 may not be provided in the GGD, and the circuit breaker 120 is directly connected to the main bus, which is beneficial to reducing the height of the GGD cabinet, so as to reduce the volume of the GGD cabinet.
Referring to fig. 1 to 4, an embodiment of the present utility model provides a miniaturized intelligent GGD cabinet, which is provided with a detection device, the detection device is provided with a measurement and control terminal 130, a current transformer 140 and a monitoring background, the cabinet body 100 is covered with a cabinet door 104, the measurement and control terminal 130 is installed on the cabinet door 104, one end of a circuit breaker 120 is provided with an outgoing copper bar 121, the current transformer 140 is installed on the outgoing copper bar 121, the measurement and control terminal 130 measures three-phase current values in the current transformer 140, the measurement and control terminal 130 takes electricity from a copper bar contact 160 connected with the copper bar 200 so as to obtain voltage values of a loop, the copper bar contact 160 and the measurement and control terminal 130 are electrically connected through a protection fuse 170, and the protection fuse 170 prevents the damage to the measurement and control terminal 130 due to excessive current in the loop, which is beneficial to protecting the measurement and control terminal 130.
The measurement and control terminal 130 and the circuit breaker 120 are electrically connected through the wiring terminal 150, so that the measurement and control terminal 130 detects the opening and closing states of the circuit breaker 120, the circuit breaker 120 is provided with a shunt coil, the shunt coil is connected to the measurement and control terminal 130, the measurement and control terminal 130 controls the opening and closing of the circuit breaker 120, the wiring terminal 150 is used for transferring connection between a current measurement loop and a communication loop of the measurement and control terminal 130, electric connection between different components is facilitated, an auxiliary element mounting beam 103 is arranged on the upper portion of the cabinet body 100, and the protection melting core 170 and the wiring terminal 150 are mounted on the auxiliary element mounting beam 103.
Referring to fig. 4, the measurement and control terminal 130 measures three-phase current values in the loop through the current transformer 140, the measurement and control terminal 130 measures voltage values in the loop through the copper bar contact 160, so that the electrical parameters in the loop are processed and calculated, the electrical parameters such as active power and reactive power in the loop are further obtained, the measurement and control device feeds back the calculated electrical parameters in the loop to the monitoring background, so that the use decision of the GGD cabinet is provided as a reference condition, the intelligent detection of the GGD cabinet is realized, the measurement and control terminal 130 is connected with the circuit breaker 120, the opening and closing state of the circuit breaker 120 is detected, the opening and closing of the circuit breaker 120 is controlled through the connection of the measurement and control terminal 130, the intelligent control of the GGD cabinet is realized, and the intelligent modification and upgrading of the GGD cabinet are facilitated.
Optionally, the circuit breaker 120 is an intelligent circuit breaker 120, and the measurement and control terminal 130 sets three-section protection parameters of the circuit breaker 120 to realize the four-remote function of the detection device.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
The utility model discloses a miniaturized intelligent GGD cabinet, which relates to the technical field of electric cabinets and comprises a cabinet body and a detection device, wherein an isolating switch is arranged at the upper part of the cabinet body, a circuit breaker is arranged below the isolating switch, two circuit breakers are connected in parallel to the output end of the isolating switch through a connecting copper bar, the connecting copper bar is positioned behind the circuit breaker, the connecting copper bar is beneficial to reducing the height of the GGD cabinet, a middle copper bar is arranged on the connecting copper bar, two adjacent middle copper bars are laminated along the height direction of the cabinet body, so that avoidance of the two adjacent middle copper bars is realized, the spatial distribution of internal equipment of the GGD cabinet is more compact, the reduction of the volume of the GGD cabinet is facilitated, the upgrading and transformation of the GGD cabinet are facilitated, the detection device is provided with a measurement and control terminal, a current transformer and a monitoring background, the current transformer is arranged on the outgoing copper bar of the circuit breaker, and the measurement and control terminal measures three-phase current values and voltage values in a loop, and the electrical parameters in the loop are fed back to the monitoring background, so that the intelligent control and intelligent upgrading of the GGD cabinet are realized.

Claims (10)

1.一种小型化智能GGD柜,其特征在于,包括:1. A miniaturized intelligent GGD cabinet, characterized by comprising: 柜体,所述柜体的上部安装有隔离开关,所述隔离开关下方安装有断路器,所述隔离开关一端与主母线电连接,两个所述断路器通过连接铜排并联接入所述隔离开关的输出端,所述连接铜排位于所述断路器的后方,所述连接铜排设有中间铜排,相邻的两个所述中间铜排沿所述柜体的高度方向层叠;A cabinet, wherein an isolating switch is installed on the upper part of the cabinet, and a circuit breaker is installed below the isolating switch, one end of the isolating switch is electrically connected to the main bus, and two circuit breakers are connected in parallel to the output end of the isolating switch through a connecting copper bar, the connecting copper bar is located behind the circuit breaker, and the connecting copper bar is provided with an intermediate copper bar, and two adjacent intermediate copper bars are stacked along the height direction of the cabinet; 检测装置,所述检测装置设有测控终端、电流互感器、监控后台,所述断路器的一端设有出线铜排,所述电流互感器安装于所述出线铜排上,所述测控终端测量所述电流互感器中的三相电流值和所述连接铜排中的电压值,所述测控终端将回路中的电参数计算后反馈至所述监控后台。The detection device is provided with a measurement and control terminal, a current transformer, and a monitoring background. One end of the circuit breaker is provided with an outgoing copper busbar, and the current transformer is installed on the outgoing copper busbar. The measurement and control terminal measures the three-phase current value in the current transformer and the voltage value in the connecting copper busbar. The measurement and control terminal calculates the electrical parameters in the loop and feeds them back to the monitoring background. 2.根据权利要求1所述的一种小型化智能GGD柜,其特征在于:所述连接铜排设有连接于所述隔离开关的第一连接端和连接于所述断路器的第二连接端,两个所述第二连接端通过所述中间铜排连接于所述第一连接端。2. A miniaturized intelligent GGD cabinet according to claim 1, characterized in that: the connecting copper busbar is provided with a first connecting end connected to the isolating switch and a second connecting end connected to the circuit breaker, and the two second connecting ends are connected to the first connecting end through the middle copper busbar. 3.根据权利要求1所述的一种小型化智能GGD柜,其特征在于:所述测控终端和所述断路器通过接线端子实现电连接,以检测所述断路器的分闸、合闸状态。3. A miniaturized intelligent GGD cabinet according to claim 1, characterized in that: the measurement and control terminal and the circuit breaker are electrically connected through wiring terminals to detect the opening and closing states of the circuit breaker. 4.根据权利要求3所述的一种小型化智能GGD柜,其特征在于:所述测控终端从铜排接点取电,以获得电压数值。4. A miniaturized intelligent GGD cabinet according to claim 3, characterized in that: the measurement and control terminal draws power from the copper busbar contact to obtain a voltage value. 5.根据权利要求4所述的一种小型化智能GGD柜,其特征在于:所述检测装置设有保护熔芯,所述保护熔芯用于连接所述铜排接点和所述测控终端,以保护所述测控终端的供电回路。5. A miniaturized intelligent GGD cabinet according to claim 4, characterized in that: the detection device is provided with a protection fuse, and the protection fuse is used to connect the copper busbar contact and the measurement and control terminal to protect the power supply circuit of the measurement and control terminal. 6.根据权利要求1所述的一种小型化智能GGD柜,其特征在于:所述断路器设有分励线圈,所述分励线圈连接于所述测控终端,以实现所述测控终端控制所述断路器的分合闸。6. A miniaturized intelligent GGD cabinet according to claim 1, characterized in that: the circuit breaker is provided with a shunt coil, and the shunt coil is connected to the measurement and control terminal to enable the measurement and control terminal to control the opening and closing of the circuit breaker. 7.根据权利要求1所述的一种小型化智能GGD柜,其特征在于:上级回路设有所述隔离开关或抽屉式断路器,所述断路器连接于所述主母线。7. A miniaturized intelligent GGD cabinet according to claim 1, characterized in that the upper circuit is provided with the isolating switch or drawer-type circuit breaker, and the circuit breaker is connected to the main bus. 8.根据权利要求1所述的一种小型化智能GGD柜,其特征在于:所述柜体上盖合有柜门,所述测控终端安装于所述柜门。8. A miniaturized intelligent GGD cabinet according to claim 1, characterized in that: the cabinet body is covered with a cabinet door, and the measurement and control terminal is installed on the cabinet door. 9.根据权利要求1所述的一种小型化智能GGD柜,其特征在于:所述柜体设有安装所述隔离开关的第一安装梁,所述柜体设有安装所述断路器的第二安装梁。9. A miniaturized intelligent GGD cabinet according to claim 1, characterized in that: the cabinet body is provided with a first mounting beam for mounting the isolating switch, and the cabinet body is provided with a second mounting beam for mounting the circuit breaker. 10.根据权利要求5所述的一种小型化智能GGD柜,其特征在于:所述柜体上设有辅助元件安装梁,所述接线端子和所述保护熔芯安装于所述辅助元件安装梁。10. A miniaturized intelligent GGD cabinet according to claim 5, characterized in that an auxiliary component mounting beam is provided on the cabinet body, and the wiring terminals and the protection fuse are mounted on the auxiliary component mounting beam.
CN202322526609.XU 2023-09-15 2023-09-15 A miniaturized intelligent GGD cabinet Active CN221669285U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322526609.XU CN221669285U (en) 2023-09-15 2023-09-15 A miniaturized intelligent GGD cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322526609.XU CN221669285U (en) 2023-09-15 2023-09-15 A miniaturized intelligent GGD cabinet

Publications (1)

Publication Number Publication Date
CN221669285U true CN221669285U (en) 2024-09-06

Family

ID=92572395

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322526609.XU Active CN221669285U (en) 2023-09-15 2023-09-15 A miniaturized intelligent GGD cabinet

Country Status (1)

Country Link
CN (1) CN221669285U (en)

Similar Documents

Publication Publication Date Title
CN102664354A (en) Multifunctional low voltage distribution cabinet
CN202997339U (en) Low-voltage capacitor compensation cabinet
CN103515956A (en) Voltage switching automatic paralleling device
CN220652608U (en) A high-voltage cabinet with circuit breaker for energy storage box transformation
CN205724436U (en) A kind of compact boats and ships direct current main distribution cabinet
CN102222589B (en) Small-sized remote control circuit breaker
CN215955753U (en) Layout structure of a 10kV full handcart hybrid DC load switch
CN221669337U (en) Small-size intelligent GGD cabinet
CN202633748U (en) Multifunctional low-voltage distribution cabinet
CN221652036U (en) A combiner cabinet for energy storage container
CN203589725U (en) A voltage switching automatic parallel device
CN220122346U (en) A kind of DC switchgear
CN117335278A (en) Miniature smart GGD cabinet
CN218919597U (en) Isolation load switch cabinet for protecting used transformer
CN215896276U (en) Leakage protector
CN212182851U (en) Metering cabinet
CN113643941B (en) Leakage protector
CN110165623A (en) Modularization bus duct positive-displacement apparatus
CN110086183A (en) A kind of breaker body unbalanced three-phase lines protection circuit
CN2796199Y (en) Unattended online monitoring comprehensive automatic control cabinet
CN223514456U (en) Multifunctional power supply and distribution box and power supply equipment
CN209497146U (en) A kind of outdoor water-proof power supply box
CN201499015U (en) a connector
CN222868371U (en) A distribution box capable of quickly restoring power supply using an emergency power supply system
CN218499036U (en) Comprehensive control box for motor

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant