CN113991596A - Multifunctional intelligent distribution network circuit breaker - Google Patents

Multifunctional intelligent distribution network circuit breaker Download PDF

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Publication number
CN113991596A
CN113991596A CN202111238093.8A CN202111238093A CN113991596A CN 113991596 A CN113991596 A CN 113991596A CN 202111238093 A CN202111238093 A CN 202111238093A CN 113991596 A CN113991596 A CN 113991596A
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CN
China
Prior art keywords
circuit breaker
unit
intelligent
switching
automation system
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.)
Withdrawn
Application number
CN202111238093.8A
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Chinese (zh)
Inventor
余海
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.)
Shenzhen Nankaisheng Electric Power Technology Co ltd
Original Assignee
Shenzhen Nankaisheng Electric Power Technology 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 Shenzhen Nankaisheng Electric Power Technology Co ltd filed Critical Shenzhen Nankaisheng Electric Power Technology Co ltd
Priority to CN202111238093.8A priority Critical patent/CN113991596A/en
Publication of CN113991596A publication Critical patent/CN113991596A/en
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02—Details
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02—Details
    • H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02—Details
    • H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
    • H02H3/042—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned combined with means for locating the fault
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02—Details
    • H02H3/06—Details with automatic reconnection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02—Details
    • H02H3/06—Details with automatic reconnection
    • H02H3/066—Reconnection being a consequence of eliminating the fault which caused disconnection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • H02H3/10—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current additionally responsive to some other abnormal electrical conditions
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/20—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage
    • H02H3/207—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage also responsive to under-voltage

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  • Breakers (AREA)

Abstract

The invention relates to a multifunctional intelligent distribution network circuit breaker which comprises an intelligent circuit breaker, residual current protection, an electric mechanism and an electronic molded case circuit breaker, wherein an electronic overcurrent release and an RS485 serial interface are arranged in the electronic molded case circuit breaker, a low-voltage distribution automation system is arranged in the intelligent circuit breaker, an HPLC (high performance liquid chromatography)/dual-mode communication module is arranged at the output end of the low-voltage distribution automation system, a collector and an intelligent electric meter are arranged in the low-voltage distribution automation system, the output end of the low-voltage distribution automation system is provided with an input end of a CPU (central processing unit), and the output end of the CPU is provided with a storage unit, a communication unit, a measurement unit, a topology identification unit, a man-machine interaction unit, a remote control unit, a switching-on-off unit and a wave recording unit. Has the advantages that: the protection is carried out on the ground fault, the over-current, the short circuit, the phase failure, the leakage current, the over-voltage and the under-voltage of the circuit and the equipment, the fire hazard and the equipment damage accident caused by the electrical fault are prevented, and the indirect protection is provided for the personal protection against electric shock.

Description

Multifunctional intelligent distribution network circuit breaker
Technical Field
The invention relates to the technical field of circuit breakers, in particular to a multifunctional intelligent distribution network circuit breaker.
Background
The low-voltage circuit breaker is an important electrical component in low-voltage distribution equipment, the construction of an intelligent power grid and the intellectualization of a power grid user side provide higher requirements for the reliability of a power distribution system, the rapid development of the intelligent low-voltage circuit breaker is objectively promoted, the plastic shell type low-voltage intelligent circuit breaker is developed rapidly, high-performance products with various different structures appear in recent years, and great contribution is made to the intellectualization of a low-voltage distribution network. The existing low-voltage intelligent circuit breaker has a relatively perfect protection function, and can also upload field operation data to a central control computer to realize the functions of remote control, remote measurement, remote regulation and remote signaling. However, with the great application of renewable green energy and the continuous development of energy management level, more and higher requirements are placed on field data uploaded through communication.
The intelligent distribution network circuit breaker is an intelligent circuit breaker with a reclosing function, integrates residual current protection, an electric mechanism and an electronic molded case circuit breaker, is suitable for a three-phase four-wire neutral point direct grounding (TT) distribution network with the rated voltage of 380V and the rated current of 630A or below, protects the grounding fault, overcurrent, short circuit, phase failure, leakage current, overvoltage, undervoltage and the like of a line and equipment, prevents the electric fault from causing fire and equipment damage accidents, and provides indirect protection for personal protection against electric shock.
Disclosure of Invention
The invention aims to provide a multifunctional intelligent distribution network circuit breaker to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a multi-functional intelligence joins in marriage net circuit breaker, is including intelligent circuit breaker, residual current protection, electric mechanism and electronic type moulded case circuit breaker, the inside residual current protection that includes of intelligent circuit breaker electric mechanism with electronic type moulded case circuit breaker, inside electronic type overcurrent release and the RS485 serial interface of being equipped with of electronic type moulded case circuit breaker, the inside low-voltage distribution automation system that is equipped with of intelligent circuit breaker, the output of low-voltage distribution automation system is equipped with HPLC/bimodulus communication module, inside collector and the smart electric meter of being equipped with of low-voltage distribution automation system, the output of low-voltage distribution automation system is equipped with treater CPU's input, treater CPU's output is equipped with storage unit, communication unit, measuring unit, topology identification unit, human-computer interaction unit, remote control unit, The switching-on and switching-off unit and the wave recording unit are arranged, the output end of the low-voltage distribution automation system is provided with a DL/T634-5101 interface and a DL/T645-2007 interface, and the DL/T634-5101 interface and the DL/T645-2007 interface transmit data to the processor CPU through the collector and the smart meter in the low-voltage distribution automation system.
Furthermore, the outside one side of intelligent circuit breaker is equipped with the recess, be located on the intelligent circuit breaker recess top one side is equipped with liquid crystal display, be located on the intelligent circuit breaker liquid crystal display's bottom one side is equipped with the keyboard, just the keyboard is located in the recess.
Furthermore, a battery jar is arranged on one side of the bottom of the groove on the intelligent circuit breaker and provides electric energy for the CPU.
Furthermore, one side that lies in the recess on the intelligent circuit breaker is equipped with manual divide-shut brake, lie in on the intelligent circuit breaker top one side of manual divide-shut brake is equipped with the state lamp, lie in on the intelligent circuit breaker top one side of state lamp is equipped with local divide-shut brake position indication.
Furthermore, the switching-on/off unit comprises an automatic switching-on/off switch, a remote signaling switching-on/off switch and a local switching-on/off switch.
Furthermore, the storage unit records alarming, faults and opening and closing actions, and the communication unit comprises 1-path 485 communication, 2-path 485 communication and 1-path dual-mode wireless communication.
Furthermore, the measuring unit is used for measuring and controlling three-phase power, the topology identification unit is used for detecting characteristic current, and the human-computer interaction unit comprises a liquid crystal display screen, a local opening and closing position indicator and a keyboard.
Furthermore, the remote control unit comprises a brake separating unit, a brake closing unit and a fault alarm resetting unit, and the wave recording unit is used for generating wave recording when a fault occurs.
Compared with the prior art, the invention has the following beneficial effects: the circuit breaker adopts an electronic overcurrent release, the rated current can be adjusted according to the line load condition, and by adjusting three sections of protection curves, the circuit breaker is provided with an RS485 serial interface, supports an extended HPLC/dual-mode communication module, supports DL/T634-5101 and DL/T645-2007 protocols, can realize the automatic meter reading function for the collector or the intelligent electric meter, can be quickly integrated into a low-voltage distribution automation system, can conveniently realize an intelligent distribution network, the protection is carried out on the ground fault, the over-current, the short circuit, the phase failure, the leakage current, the over-voltage and the under-voltage of the circuit and the equipment, the fire hazard and the equipment damage accident caused by the electrical fault are prevented, and the indirect protection is provided for the personal protection against electric shock.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic diagram of a body structure of a multifunctional intelligent distribution network circuit breaker according to the embodiment of the invention;
FIG. 2 is a schematic diagram of an electrical schematic of a multifunctional intelligent distribution network circuit breaker implemented in accordance with the present invention;
reference numerals:
1. an intelligent fuse; 11. a groove; 12. a liquid crystal display screen; 13. a keyboard; 14. a battery case; 15. manually opening and closing the brake; 16. a status light; 17. local switching-on and switching-off position indication; 2. residual current protection; 3. an electric mechanism; 4. an electronic molded case circuit breaker; 41. an electronic overcurrent release; 42. an RS485 serial interface; 5. a low voltage distribution automation system; 51. a collector; 52. a smart meter; 6. a processor CPU; 61. a storage unit; 62. a communication unit; 63. a measuring unit; 64. a topology identification unit; 65. a human-computer interaction unit; 66. a remote control unit; 67. a switching unit; 68. and a recording unit.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-2, a multifunctional intelligent distribution network circuit breaker according to the present invention includes an intelligent circuit breaker 1, a residual current protection 2, an electric mechanism 3 and an electronic molded case circuit breaker 4, the intelligent circuit breaker 1 includes the residual current protection 2, the electric mechanism 3 and the electronic molded case circuit breaker 4, the electronic molded case circuit breaker 4 is provided with an electronic overcurrent release 41 and an RS485 serial interface 42, the intelligent circuit breaker 1 is provided with a low voltage distribution automation system 5, an output end of the low voltage distribution automation system 5 is provided with an HPLC/dual-mode communication module, the low voltage distribution automation system 5 is provided with a collector 51 and an intelligent electric meter 52, an output end of the low voltage distribution automation system 5 is provided with an input end of a processor CPU6, an output end of the processor CPU6 is provided with a storage unit 61, a communication unit 62, a measurement unit 63, 63, The topology identification unit 64, the human-computer interaction unit 65, the remote control unit 66, the switching-on/off unit 67 and the wave recording unit 68 are arranged on the output end of the low-voltage distribution automation system 5, a DL/T634-5101 interface and a DL/T645-2007 interface are arranged on the output end of the low-voltage distribution automation system 5, and the DL/T634-5101 interface and the DL/T645-2007 interface transmit data to the processor CPU6 through the collector 51 and the smart meter 52 in the low-voltage distribution automation system 5.
Wherein, 1 outside one side of intelligent circuit breaker is equipped with recess 11, and the bottom one side that lies in recess 11 top on the intelligent circuit breaker 1 is equipped with liquid crystal display 12, and the bottom one side that lies in liquid crystal display 12 on the intelligent circuit breaker 1 is equipped with keyboard 13, and keyboard 13 is arranged in recess 11, realizes man-machine interactive's effect.
Wherein, the intelligent circuit breaker 1 is provided with a battery jar 14 at one side of the bottom of the groove 11, and the battery jar 14 provides electric energy for the processor CPU 6.
Wherein, the one side that lies in recess 11 on intelligent circuit breaker 1 is equipped with manual divide-shut brake 15, and the top one side that lies in manual divide-shut brake 15 on intelligent circuit breaker 1 is equipped with status light 16, and the top one side that lies in status light 16 on intelligent circuit breaker 1 is equipped with local divide-shut brake position indication 17, and man-machine interaction controls the circuit breaker.
The switching-on/off unit 67 comprises an automatic switching-on/off unit, a remote signaling switching-on/off unit and a local switching-on/off unit, and has diversified functions.
The storage unit 61 records alarming, faults and opening and closing actions, and the communication unit 62 realizes the functions of storage and communication by 1-path 485 communication, 2-path 485 communication and 1-path dual-mode wireless communication.
The measuring unit 63 measures and controls three-phase power, the topology recognition unit 64 detects characteristic current, and the human-computer interaction unit 65 comprises the liquid crystal display screen 12, the local opening and closing position indication 17 and the keyboard 13, so that the use is convenient.
The remote control unit 66 includes switching-off, switching-on and fault alarm resetting, and the wave recording unit 68 is used for recording waves when a fault occurs, and has strong functionality.
Principle of operation
By the scheme, the circuit breaker of the multifunctional intelligent distribution network adopts the electronic overcurrent release in the using process, the rated current can be adjusted according to the line load condition, the circuit breaker can be matched with a lower-level circuit breaker to realize graded protection by adjusting three-section protection curves, the electronic overcurrent release has high protection precision and small influence by the environmental temperature and the installation position, is an upgrading and updating product of the thermomagnetic overcurrent release, is provided with an RS485 serial interface, supports an extended HPLC/dual-mode communication module and DL/T634-5101 and DL/T645-2007 protocols, can realize the automatic meter reading function on a collector or an intelligent electric meter, is quickly integrated into a low-voltage distribution automation system, conveniently realizes an intelligent distribution network, and protects the ground fault, overcurrent, short circuit, phase loss, leakage current, overvoltage and undervoltage of a line and equipment, prevent that electric fault from arousing conflagration and equipment damage accident, provide indirect protection for the personal protection against electric shock.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (8)

1. A multifunctional intelligent distribution network breaker comprises an intelligent breaker (1), a residual current protector (2), an electric mechanism (3) and an electronic molded case circuit breaker (4), and is characterized in that the residual current protector (2), the electric mechanism (3) and the electronic molded case circuit breaker (4) are arranged in the intelligent breaker (1), an electronic overcurrent release (41) and an RS485 serial interface (42) are arranged in the electronic molded case circuit breaker (4), a low-voltage distribution automation system (5) is arranged in the intelligent breaker (1), an HPLC/dual-mode communication module is arranged at the output end of the low-voltage distribution automation system (5), a collector (51) and an intelligent electric meter (52) are arranged in the low-voltage distribution automation system (5), and the input end of a CPU (6) is arranged at the output end of the low-voltage distribution automation system (5), the output end of the processor CPU (6) is provided with a storage unit (61), a communication unit (62), a measuring unit (63), a topology identification unit (64), a human-computer interaction unit (65), a remote control unit (66), a switching-on/off unit (67) and a wave recording unit (68), the output end of the low-voltage distribution automation system (5) is provided with a DL/T634-5101 interface and a DL/T645-2007 interface, and the DL/T634-5101 interface and the DL/T645-2007 interface transmit data to the processor CPU (6) through the collector (51) and the intelligent electric meter (52) in the low-voltage distribution automation system (5).
2. The multifunctional intelligent distribution network circuit breaker according to claim 1, wherein a groove (11) is formed in one side of the outside of the intelligent circuit breaker (1), a liquid crystal display (12) is arranged on one side of the top of the groove (11) on the intelligent circuit breaker (1), a keyboard (13) is arranged on one side of the bottom of the liquid crystal display (12) on the intelligent circuit breaker (1), and the keyboard (13) is arranged in the groove (11).
3. The multifunctional intelligent distribution network circuit breaker according to claim 2, wherein a battery jar (14) is arranged on the intelligent circuit breaker (1) at one side of the bottom of the groove (11), and the battery jar (14) provides electric energy for the processor CPU (6).
4. The multifunctional intelligent distribution network circuit breaker according to claim 2, wherein a manual opening and closing switch (15) is arranged on one side of the intelligent circuit breaker (1) located in the groove (11), a state lamp (16) is arranged on one side of the intelligent circuit breaker (1) located at the top of the manual opening and closing switch (15), and a local opening and closing switch position indicator (17) is arranged on one side of the intelligent circuit breaker (1) located at the top of the state lamp (16).
5. The multifunctional intelligent distribution network circuit breaker according to claim 1, wherein the switching-on and switching-off unit (67) comprises an automatic switching-on and switching-off, a remote signaling switching-on and switching-off and a local switching-on and switching-off.
6. The multifunctional intelligent distribution network circuit breaker according to claim 1, wherein the storage unit (61) is used for recording alarm, fault and opening and closing actions, and the communication unit (62) comprises 1-channel 485 communication, 2-channel 485 communication and 1-channel dual-mode wireless communication.
7. The multifunctional intelligent distribution network circuit breaker according to claim 1, wherein the measuring unit (63) measures and controls three-phase power, the topology recognition unit (64) detects characteristic current, and the human-computer interaction unit (65) comprises a liquid crystal display (12), a local switching-on/off position indicator (17) and a keyboard (13).
8. The multifunctional intelligent distribution network circuit breaker as claimed in claim 1, wherein the remote control unit (66) comprises a switch-off unit, a switch-on unit and a fault alarm reset unit, and the wave recording unit (68) generates a wave recording for a fault.
CN202111238093.8A 2021-10-25 2021-10-25 Multifunctional intelligent distribution network circuit breaker Withdrawn CN113991596A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111238093.8A CN113991596A (en) 2021-10-25 2021-10-25 Multifunctional intelligent distribution network circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111238093.8A CN113991596A (en) 2021-10-25 2021-10-25 Multifunctional intelligent distribution network circuit breaker

Publications (1)

Publication Number Publication Date
CN113991596A true CN113991596A (en) 2022-01-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111238093.8A Withdrawn CN113991596A (en) 2021-10-25 2021-10-25 Multifunctional intelligent distribution network circuit breaker

Country Status (1)

Country Link
CN (1) CN113991596A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118731591A (en) * 2024-09-02 2024-10-01 国网陕西省电力有限公司电力科学研究院 A catastrophic fault testing method and related device for distribution automation system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118731591A (en) * 2024-09-02 2024-10-01 国网陕西省电力有限公司电力科学研究院 A catastrophic fault testing method and related device for distribution automation system

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