[go: up one dir, main page]

CN114156140A - Power line carrier communication intelligent circuit breaker - Google Patents

Power line carrier communication intelligent circuit breaker Download PDF

Info

Publication number
CN114156140A
CN114156140A CN202111465533.3A CN202111465533A CN114156140A CN 114156140 A CN114156140 A CN 114156140A CN 202111465533 A CN202111465533 A CN 202111465533A CN 114156140 A CN114156140 A CN 114156140A
Authority
CN
China
Prior art keywords
phase
line
contact
connecting rod
rod
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.)
Pending
Application number
CN202111465533.3A
Other languages
Chinese (zh)
Inventor
陈颂
左常进
董伟
祝湘江
陈鉴武
杜武举
周妍
杜移山
陈墨
孙艳妮
杜凯
叶菁
吴静
赵霞
罗锐
孙伟
彭聪
丁玉珏
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.)
Yichang Power Supply Co of State Grid Hubei Electric Power Co Ltd
Original Assignee
Yichang Power Supply Co of State Grid Hubei Electric Power 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 Yichang Power Supply Co of State Grid Hubei Electric Power Co Ltd filed Critical Yichang Power Supply Co of State Grid Hubei Electric Power Co Ltd
Priority to CN202111465533.3A priority Critical patent/CN114156140A/en
Publication of CN114156140A publication Critical patent/CN114156140A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10Operating or release mechanisms
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B3/00Line transmission systems
    • H04B3/54Systems for transmission via power distribution lines

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)

Abstract

The invention belongs to the technical field of power systems. The power carrier communication intelligent circuit breaker comprises a circuit breaker, a microprocessor, a relay and a wireless communication module; the input line of the circuit breaker is provided with a relay, the relay is connected with the control end of the microprocessor through a wire, and the wireless communication module is connected with the microprocessor; the method is characterized in that: the power carrier communication module is characterized by further comprising a power carrier communication module, wherein the input end of the power carrier communication module is connected with the input line of the circuit breaker through a carrier power line, and the output end of the power carrier communication module is connected with the signal input end of the microprocessor through the carrier power line. The invention can realize the automatic opening and closing of the breaker in the place without wireless communication.

Description

Power line carrier communication intelligent circuit breaker
Technical Field
The invention belongs to the technical field of electric power, and particularly relates to an intelligent circuit breaker.
Background
The existing intelligent circuit breaker generally adopts a wireless communication module to receive a control signal, and the automatic disconnection and connection of the circuit breaker are realized. When there is no signal (such as basement, mountain area, signal interference, etc.), the automatic opening and closing of the circuit breaker cannot be realized, and only the time for opening can be set.
Power line carrier communication (powerlinecarriercommunication) is power system communication in which a power transmission line is a transmission medium of a carrier signal.
Disclosure of Invention
The invention aims to provide a power carrier communication intelligent circuit breaker, which can realize automatic disconnection and connection of the circuit breaker in a place without wireless communication.
In order to achieve the purpose, the invention adopts the technical scheme that: the power carrier communication intelligent circuit breaker comprises a circuit breaker, a microprocessor, a relay and a wireless communication module; the input line of the circuit breaker is provided with a relay, the relay is connected with the control end of the microprocessor through a wire, and the wireless communication module is connected with the microprocessor; the method is characterized in that: the power carrier communication module is characterized by further comprising a power carrier communication module, wherein the input end of the power carrier communication module is connected with the input line of the circuit breaker through a carrier power line, and the output end of the power carrier communication module is connected with the signal input end of the microprocessor through the carrier power line.
The invention has the beneficial effects that: due to the adoption of the power carrier communication module, the automatic opening and closing of the circuit breaker can be realized in a place without wireless communication by utilizing the existing power line.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
In the figure: 1-circuit breaker, 2-undervoltage wire, 3-undervoltage release, 4-undervoltage armature, 5-first spring, 6-right block, 7-lever, 8-hinged seat, 9-hooking rod, 10-overcurrent release, 11-left block, 12-A phase input line, 13-B phase input line, 14-C phase input line, 15-relay, 16-first contact, 17-second spring, 18-insulation locking rod, 19-A phase conductive connecting rod, 20-second contact, 21-A phase output line, 22-B phase output line, 23-C phase output line, 24-overcurrent armature, 25-heating resistance wire and 26-bimetallic strip.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, the power line carrier communication intelligent circuit breaker includes a circuit breaker (or called air switch) 1, a microprocessor, a relay, and a wireless communication module; a relay 15 is arranged on an input line of the circuit breaker 1 (the relay realizes automatic disconnection and connection of the input line), the relay 15 is connected with a control end of a microprocessor through a wire, and a wireless communication module is connected with the microprocessor; the circuit breaker further comprises a power carrier communication module (or power line carrier communication module), wherein the input end of the power carrier communication module is connected with the input line of the circuit breaker 1 through a carrier power line (the input end of the power carrier communication module can be coupled with the input line of the circuit breaker 1 through a power line coupling interface), and the output end of the power carrier communication module is connected with the signal input end of the microprocessor through the carrier power line.
The circuit breaker 1 comprises a shell, an A-phase input line 12, a B-phase input line 13, a C-phase input line 14, an A-phase output line 21, a B-phase output line 22, a C-phase output line 23, an under-voltage line 2, an under-voltage release 3, an under-voltage armature 4, a first spring 5, a lever 7, a hinged seat 8, a hook rod 9, an over-current release 10, a second spring 17, an insulating latch rod 18, an A-phase conductive connecting rod 19, a B-phase conductive connecting rod, a C-phase conductive connecting rod, an over-current armature 24, a heating resistance wire 25 and a bimetallic strip 26; the A-phase input line 12, the B-phase input line 13, the C-phase input line 14, the A-phase output line 21, the B-phase output line 22, the C-phase output line 23, the undervoltage line 2, the undervoltage release 3, the undervoltage armature 4, the first spring 5, the lever 7, the hinged base 8, the hook lapping rod 9, the overcurrent release 10, the second spring 17, the insulation lock key rod 18, the A-phase conductive connecting rod 19, the B-phase conductive connecting rod, the C-phase conductive connecting rod, the overcurrent armature 24, the heating resistance wire 25 and the bimetallic strip 26 are all positioned in the shell; the upper end input interfaces of the A-phase input line 12, the B-phase input line 13 and the C-phase input line 14 are arranged on the shell (the input interfaces are used for external input lines), and the lower end output interfaces of the A-phase output line 21, the B-phase output line 22 and the C-phase output line 23 are arranged on the shell (the output interfaces are used for external output lines);
the right end of the insulated locking key rod 18 is provided with an upward hook (for convenience of description, the right side and the left side in fig. 1 are left), the left end of the insulated locking key rod 18 is connected with the shell through a second spring 17, the insulated locking key rod 18 is fixed with an A-phase conductive connecting rod 19, a B-phase conductive connecting rod and a C-phase conductive connecting rod, and the upper right side surface and the lower right side surface of the A-phase conductive connecting rod 19, the B-phase conductive connecting rod and the C-phase conductive connecting rod are respectively fixed with a first contact 16; second contacts 20 are respectively fixed at the lower ends of the A-phase input line 12, the B-phase input line 13 and the C-phase input line 14, and second contacts 20 are respectively fixed at the upper ends of the A-phase output line 21, the B-phase output line 22 and the C-phase output line 23; the first contact 16 on the right side of the upper end of the a-phase conductive connecting rod 19 is located on the left side of the second contact 20 on the lower end of the a-phase input line 12, and the first contact 16 on the right side of the lower end of the a-phase conductive connecting rod 19 is located on the left side of the second contact 20 on the upper end of the a-phase output line 21; the first contact 16 on the right side of the upper end of the B-phase conductive connecting rod is positioned on the left side of the second contact 20 on the lower end of the B-phase input line 13, and the first contact 16 on the right side of the lower end of the B-phase conductive connecting rod is positioned on the left side of the second contact 20 on the upper end of the B-phase output line 22; the first contact 16 on the right side of the upper end of the C-phase conductive connecting rod is positioned on the left side of the second contact 20 at the lower end of the C-phase input line 14, and the first contact 16 on the right side of the lower end of the C-phase conductive connecting rod is positioned on the left side of the second contact 20 at the upper end of the C-phase output line 23;
the right end part of the hook rod 9 is hinged with the hinge seat 8, the hinge seat 8 is fixed on the shell, the left end part of the hook rod 9 is provided with a downward hook, and the hook on the hook rod 9 is buckled with the hook on the insulating lock key rod 18; a lever 7 is fixed below the middle part of the hooking rod 9, a right stop block 6 is fixed on the right side surface of the lower end part of the lever 7, a left stop block 11 is fixed on the left side surface of the lower part of the lever 7, and the left stop block 11 is positioned above the right stop block 6;
a coil is arranged at the upper part of the C-phase output line 23, the coil is wound on the overcurrent release (an inverted U-shaped magnet) 10, the left end part of the overcurrent armature 24 is hinged with the left part of the lower end of the current release 10, and the right end part of the overcurrent armature 24 is positioned below the left stop block 11; a heating resistance wire 25 is arranged at the lower part of the C-phase output wire 23, a bimetallic strip 26 is arranged above the heating resistance wire 25, and the bimetallic strip 26 is fixed on the shell;
one end of an undervoltage wire 2 is connected with an A-phase output wire 21, the other end of the undervoltage wire 2 is connected with a B-phase output wire 22, a coil is arranged on the undervoltage wire 2 and wound on an over undervoltage release (U-shaped magnet) 3, the right end of an undervoltage armature 4 is hinged with the right part of the upper end of the undervoltage release 3, and the left end of the undervoltage armature 4 is positioned below a right stop block 6; the upper middle part of the undervoltage armature 4 is connected with the shell by a first spring 5.
The circuit breaker 1 adopts the prior art.
Use of: the automatic disconnection and connection of the circuit breaker can be realized at the place without wireless communication by utilizing the existing power line and the power carrier communication module. Meanwhile, the circuit breaker can be automatically switched off and on in a place with a wireless communication signal by utilizing wireless communication and a wireless communication module.

Claims (2)

1.电力载波通讯智能断路器,包括断路器、微处理器、继电器、无线通讯模块;断路器的输入线上安装有继电器,继电器由导线与微处理器的控制端相连,无线通讯模块与微处理器相连;其特征在于:还包括电力载波通信模块,电力载波通信模块的输入端由载波电力线与断路器的输入线相连,电力载波通信模块的输出端由载波电力线与微处理器的信号输入端相连。1. Power carrier communication intelligent circuit breaker, including circuit breaker, microprocessor, relay, wireless communication module; a relay is installed on the input line of the circuit breaker, the relay is connected with the control end of the microprocessor by a wire, and the wireless communication module is connected with the microcomputer. The processor is connected to each other; it is characterized in that: it also includes a power carrier communication module, the input end of the power carrier communication module is connected with the input line of the circuit breaker by the carrier power line, and the output end of the power carrier communication module is input by the carrier power line and the signal of the microprocessor end connected. 2.根据权利要求1所述的电力载波通讯智能断路器,其特征在于:所述断路器(1)包括壳体、A相输入线(12)、B相输入线(13)、C相输入线(14)、A相输出线(21)、B相输出线(22)、C相输出线(23)、欠电压线(2)、欠电压脱扣器(3)、欠电压衔铁(4)、第一弹簧(5)、杠杆(7)、铰接座(8)、搭钩杆(9)、过电流脱扣器(10)、第二弹簧(17)、绝缘锁键杆(18)、A相导电连接杆(19)、B相导电连接杆、C相导电连接杆、过电流衔铁(24)、加热电阻丝(25)、双金属片(26);A相输入线(12)、B相输入线(13)、C相输入线(14)、A相输出线(21)、B相输出线(22)、C相输出线(23)、欠电压线(2)、欠电压脱扣器(3)、欠电压衔铁(4)、第一弹簧(5)、杠杆(7)、铰接座(8)、搭钩杆(9)、过电流脱扣器(10)、第二弹簧(17)、绝缘锁键杆(18)、A相导电连接杆(19)、B相导电连接杆、C相导电连接杆、过电流衔铁(24)、加热电阻丝(25)、双金属片(26)均位于壳体内;A相输入线(12)、B相输入线(13)、C相输入线(14)的上端输入接口设在壳体上,A相输出线(21)、B相输出线(22)、C相输出线(23)的下端输出接口设在壳体上;2. The power carrier communication intelligent circuit breaker according to claim 1, characterized in that: the circuit breaker (1) comprises a housing, an A-phase input line (12), a B-phase input line (13), and a C-phase input line Line (14), A-phase output line (21), B-phase output line (22), C-phase output line (23), undervoltage line (2), undervoltage release (3), undervoltage armature (4) ), the first spring (5), the lever (7), the hinge seat (8), the hook lever (9), the overcurrent release (10), the second spring (17), the insulating lock lever (18) , A-phase conductive connecting rod (19), B-phase conductive connecting rod, C-phase conductive connecting rod, overcurrent armature (24), heating resistance wire (25), bimetal (26); A-phase input line (12) , B-phase input line (13), C-phase input line (14), A-phase output line (21), B-phase output line (22), C-phase output line (23), undervoltage line (2), undervoltage Release (3), undervoltage armature (4), first spring (5), lever (7), hinged seat (8), hook rod (9), overcurrent release (10), second Spring (17), insulating locking rod (18), A-phase conductive connecting rod (19), B-phase conductive connecting rod, C-phase conductive connecting rod, overcurrent armature (24), heating resistance wire (25), bimetal The plates (26) are all located in the casing; the upper input interfaces of the A-phase input lines (12), B-phase input lines (13), and C-phase input lines (14) are set on the casing, and the A-phase output lines (21), The lower output interfaces of the B-phase output line (22) and the C-phase output line (23) are arranged on the casing; 绝缘锁键杆(18)的右端部设有向上的搭钩,绝缘锁键杆(18)的左端部由第二弹簧(17)与壳体相连,绝缘锁键杆(18)上固定有A相导电连接杆(19)、B相导电连接杆、C相导电连接杆,A相导电连接杆(19)、B相导电连接杆、C相导电连接杆的上端右侧面、下端右侧面分别固定有第一触头(16);A相输入线(12)、B相输入线(13)、C相输入线(14)的下端分别固定有第二触头(20),A相输出线(21)、B相输出线(22)、C相输出线(23)的上端分别固定有第二触头(20);A相导电连接杆(19)的上端右侧面的第一触头(16)位于A相输入线(12)的下端的第二触头(20)的左侧,A相导电连接杆(19)的下端右侧面的第一触头(16)位于A相输出线(21)的上端的第二触头(20)的左侧;B相导电连接杆的上端右侧面的第一触头(16)位于B相输入线(13)的下端的第二触头(20)的左侧,B相导电连接杆的下端右侧面的第一触头(16)位于B相输出线(22)的上端的第二触头(20)的左侧;C相导电连接杆的上端右侧面的第一触头(16)位于C相输入线(14)的下端的第二触头(20)的左侧,C相导电连接杆的下端右侧面的第一触头(16)位于C相输出线(23)的上端的第二触头(20)的左侧;The right end of the insulating locking lever (18) is provided with an upward hook, the left end of the insulating locking lever (18) is connected to the housing by a second spring (17), and the insulating locking lever (18) is fixed with A Phase conductive connection rod (19), B-phase conductive connection rod, C-phase conductive connection rod, A-phase conductive connection rod (19), B-phase conductive connection rod, and C-phase conductive connection rod on the right side of the upper end and the right side of the lower end The first contacts (16) are respectively fixed; the lower ends of the A-phase input lines (12), the B-phase input lines (13), and the C-phase input lines (14) are respectively fixed with second contacts (20), and the A-phase output lines The upper ends of the line (21), the B-phase output line (22), and the C-phase output line (23) are respectively fixed with a second contact (20); the first contact on the right side of the upper end of the A-phase conductive connecting rod (19) The head (16) is located on the left side of the second contact (20) at the lower end of the A-phase input line (12), and the first contact (16) on the right side of the lower end of the A-phase conductive connecting rod (19) is located at the A-phase The left side of the second contact (20) at the upper end of the output line (21); the first contact (16) on the right side of the upper end of the B-phase conductive connecting rod is located on the second side of the lower end of the B-phase input line (13). On the left side of the contact (20), the first contact (16) on the right side of the lower end of the B-phase conductive connecting rod is located on the left side of the second contact (20) on the upper end of the B-phase output line (22); C The first contact (16) on the right side of the upper end of the phase conductive connecting rod is located on the left side of the second contact (20) on the lower end of the C-phase input line (14), and the first contact (16) on the right side of the lower end of the C-phase conductive connecting rod is located on the left side. The first contact (16) is located to the left of the second contact (20) at the upper end of the C-phase output line (23); 搭钩杆(9)的右端部与铰接座(8)铰接,铰接座(8)固定在壳体上,搭钩杆(9)的左端部设有向下的搭钩,搭钩杆(9)上的搭钩与绝缘锁键杆(18)上的搭钩相搭扣;搭钩杆(9)的中部下面固定有杠杆(7),杠杆(7)的下端部右侧面固定有右挡块(6),杠杆(7)的下部左侧面固定有左挡块(11),左挡块(11)位于右挡块(6)的上方;C相输出线(23)的上部设有线圈,线圈绕在过电流脱扣器(10)上,过电流衔铁(24)的左端部与电流脱扣器(10)的下端左部铰接,过电流衔铁(24)的右端部位于左挡块(11)的下方;C相输出线(23)的下部设有加热电阻丝(25),加热电阻丝(25)的上方设有双金属片(26),双金属片(26)固定在壳体上;The right end of the hook rod (9) is hinged with the hinge seat (8), the hinge seat (8) is fixed on the shell, the left end of the hook rod (9) is provided with a downward hook, and the hook rod (9) The hook on the ) and the hook on the insulating lock key rod (18) are hooked together; a lever (7) is fixed under the middle part of the hook rod (9), and a right side is fixed on the right side of the lower end of the lever (7). Block (6), a left block (11) is fixed on the lower left side of the lever (7), and the left block (11) is located above the right block (6); the upper part of the C-phase output line (23) is provided with There is a coil, the coil is wound on the overcurrent release (10), the left end of the overcurrent armature (24) is hinged with the lower left of the current release (10), and the right end of the overcurrent armature (24) is located on the left Below the stopper (11); a heating resistance wire (25) is arranged at the lower part of the C-phase output wire (23), and a bimetallic sheet (26) is arranged above the heating resistance wire (25), and the bimetallic sheet (26) is fixed on the shell; 欠电压线(2)的一端与A相输出线(21)相连,欠电压线(2)的另一端与B相输出线(22)相连,欠电压线(2)上设有线圈,线圈绕在过欠电压脱扣器(3)上,欠电压衔铁(4)的右端部与欠电压脱扣器(3)的上端右部铰接,欠电压衔铁(4)的左端部位于右挡块(6)的下方;欠电压衔铁(4)的中部上面由第一弹簧(5)与壳体相连。One end of the under-voltage line (2) is connected with the A-phase output line (21), and the other end of the under-voltage line (2) is connected with the B-phase output line (22). The under-voltage line (2) is provided with a coil, and the coil is wound around On the overvoltage and undervoltage release (3), the right end of the undervoltage armature (4) is hinged with the upper right part of the undervoltage release (3), and the left end of the undervoltage armature (4) is located at the right stop ( 6) below; the upper part of the middle of the undervoltage armature (4) is connected to the housing by the first spring (5).
CN202111465533.3A 2021-12-03 2021-12-03 Power line carrier communication intelligent circuit breaker Pending CN114156140A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111465533.3A CN114156140A (en) 2021-12-03 2021-12-03 Power line carrier communication intelligent circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111465533.3A CN114156140A (en) 2021-12-03 2021-12-03 Power line carrier communication intelligent circuit breaker

Publications (1)

Publication Number Publication Date
CN114156140A true CN114156140A (en) 2022-03-08

Family

ID=80456020

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111465533.3A Pending CN114156140A (en) 2021-12-03 2021-12-03 Power line carrier communication intelligent circuit breaker

Country Status (1)

Country Link
CN (1) CN114156140A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010036047A1 (en) * 2000-02-03 2001-11-01 Macbeth Bruce F. AFCI which detects and interrupts line side arcing
CN101656432A (en) * 2009-09-08 2010-02-24 宁夏隆基宁光仪表有限公司 Electronic radio carrier communication watt-hour meter
CN103091602A (en) * 2013-01-11 2013-05-08 浙江华健电子科技有限公司 Power line carrier wave online fault detection device
CN204205719U (en) * 2014-11-25 2015-03-11 青岛东软载波科技股份有限公司 A kind of circuit breaker control circuit possessing radio communication and function of measuring
CN208142820U (en) * 2018-05-30 2018-11-23 苏琪 The novel current protection device of Coal Mine Power Distribution System
CN109818423A (en) * 2019-04-08 2019-05-28 国网福建省电力有限公司 An intelligent operation and maintenance power distribution system based on active service management mode
WO2019186422A1 (en) * 2018-03-28 2019-10-03 Kamata Online Protection Services (Kops) Limited A monitoring and protection device
CN111211811A (en) * 2020-02-28 2020-05-29 上海良信电器股份有限公司 Circuit breaker, circuit breaker system, circuit breaker communication method and device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010036047A1 (en) * 2000-02-03 2001-11-01 Macbeth Bruce F. AFCI which detects and interrupts line side arcing
CN101656432A (en) * 2009-09-08 2010-02-24 宁夏隆基宁光仪表有限公司 Electronic radio carrier communication watt-hour meter
CN103091602A (en) * 2013-01-11 2013-05-08 浙江华健电子科技有限公司 Power line carrier wave online fault detection device
CN204205719U (en) * 2014-11-25 2015-03-11 青岛东软载波科技股份有限公司 A kind of circuit breaker control circuit possessing radio communication and function of measuring
WO2019186422A1 (en) * 2018-03-28 2019-10-03 Kamata Online Protection Services (Kops) Limited A monitoring and protection device
CN208142820U (en) * 2018-05-30 2018-11-23 苏琪 The novel current protection device of Coal Mine Power Distribution System
CN109818423A (en) * 2019-04-08 2019-05-28 国网福建省电力有限公司 An intelligent operation and maintenance power distribution system based on active service management mode
CN111211811A (en) * 2020-02-28 2020-05-29 上海良信电器股份有限公司 Circuit breaker, circuit breaker system, circuit breaker communication method and device

Similar Documents

Publication Publication Date Title
CN105513915B (en) A kind of intelligent breaker combination unit
WO2013097288A1 (en) Intelligent magnetic latching miniature circuit breaker
WO2013097289A1 (en) Intelligent magnetic latching miniature circuit breaker and control method therefor
CN101416264A (en) Circuits breaker having resetting function and breaking function for abnormal current
CN107508102A (en) A kind of intelligent socket and its overload protection method
CN111223725A (en) A circuit breaker and control method
CN210120060U (en) External circuit breaker structure of electric energy meter with wireless communication
CN113141056A (en) Time delay closing type charge control system
CN114156140A (en) Power line carrier communication intelligent circuit breaker
CN209044774U (en) A kind of prepaid low-voltage broken circuit control device
CN112213547A (en) An open-type low-voltage AC current acquisition device with switch value
CN218447775U (en) Automatic control circuit breaker based on Internet of things
CN113394013B (en) Intelligent voltage transformer
CN213752592U (en) Internet of things intelligent circuit breaker with data acquisition module
CN208298764U (en) Air switch with remote control and regulation function
CN112415242B (en) Intelligent electric energy metering box inlet wire quick connecting device
CN114156736A (en) Intelligent branch box
CN207368746U (en) Intelligent locking device for preventing switching-on and power transmission of station grounding knife
CN219418939U (en) Multi-structure integrated intelligent miniature circuit breaker
CN214797281U (en) Breaker switch state collector for Internet of things
CN218975369U (en) Circuit breaker on small-capacity user demarcation pole
CN220439525U (en) Three-phase four-wire circuit breaker assembly
CN212461551U (en) Intelligent miniature circuit breaker
CN215680568U (en) Fool-proof structure of universal circuit breaker plug-in secondary terminal
CN111524758A (en) Remote negative control locking and opening device of circuit breaker

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20220308

RJ01 Rejection of invention patent application after publication