CN205016847U - But low -voltage switchgear of intelligent communication - Google Patents

But low -voltage switchgear of intelligent communication Download PDF

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Publication number
CN205016847U
CN205016847U CN201520716348.0U CN201520716348U CN205016847U CN 205016847 U CN205016847 U CN 205016847U CN 201520716348 U CN201520716348 U CN 201520716348U CN 205016847 U CN205016847 U CN 205016847U
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China
Prior art keywords
unit
switch unit
low
incoming
incoming cables
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Active
Application number
CN201520716348.0U
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Chinese (zh)
Inventor
梁相军
陆丽丽
罗昕
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Hangzhou Shibang Electric Technology Co Ltd
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Hangzhou Shibang Electric Technology Co Ltd
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Priority to CN201520716348.0U priority Critical patent/CN205016847U/en
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Abstract

The utility model relates to a but low -voltage switchgear of intelligent communication. The problem of do not deal with the device that switchgear broke down in the current low tension switchgear system is solved. The cubical switchboard is including preventing trouble inlet wire end, fault detection unit, a plurality of inlet wire circuits that are formed by connecting at a pair of inlet wire end, it all is connected with transformer unit and service entrance switch unit to serve at every inlet wire, each service entrance switch is connected with DLC the control unit respectively, each inlet wire end all is provided with a ray of sweetgum fruit and crosses the interconnection switch unit and be connected to trouble inlet wire end respectively, each interconnection switch unit is connected with DLC the control unit respectively, fault detection unit is connected to respectively on each service entrance switch unit, fault detection unit is connected with DLC the control unit. The utility model has the advantages that break down to low -voltage switchgear's service entrance switch and detect to protect breaking down, guarantee that low -voltage switchgear normally works.

Description

The low-tension switch cabinet of intelligent communication
Technical field
The utility model relates to a kind of technical field of electric control, particularly relates to a kind of low-tension switch cabinet of intelligent communication.
Background technology
Low tension switch also claims automatic air-break switch, all-purpose air breaker, and it is widely used in low-voltage distribution system, and when there is circuit under voltage, overload, short circuit, the automatic trip of low tension switch energy, thus protection power consumption equipment, improve power supply quality.
Have a great deal of low-voltage distribution system to adopt two transformers to connect at present to be incorporated into the power networks.When circuit generation under voltage, overload, short circuit etc. are abnormal, can trip in time, power consumption equipment is protected.But also there are some defects in these low-voltage distribution systems, the reply device of switching devices fault is not set, when switchgear breaks down, then whole piece circuit just cannot work, just can work on after needing manually to safeguard, preventive maintenance time is long, and the time that causes power failure is long, the problem of user satisfaction difference.
Summary of the invention
The utility model mainly solves the device of not answering switching devices to break down in existing low tension switch system, causes system normally to run, the problem that just can work on after needing manual maintenance, provides a kind of low-tension switch cabinet of intelligent communication.
The utility model solves the technical scheme that its technical problem adopts: a kind of low-tension switch cabinet of intelligent communication, comprise some inlet wire circuits be formed by connecting by a pair end of incoming cables, each end of incoming cables is connected with transformer unit and incoming line switch unit, each service entrance switch is connected with DLC control unit respectively, switch cubicle also includes fail-safe end of incoming cables and fault detection unit, end of incoming cables is connected with incoming line switch unit to fail-safe, this incoming line switch unit is connected with DLC control unit, each end of incoming cables is all provided with a circuit and is connected to fault end of incoming cables respectively by interconnection switch unit, described each interconnection switch unit is connected with DLC control unit respectively, described fault detection unit is connected respectively on each incoming line switch unit, and fault detection unit is connected with DLC control unit.In the utility model, whether fault detection unit breaks down or exception for detecting each incoming line switch unit, and the information detected is sent to DLC control unit.DLC control unit controls the work of each incoming line switch unit, interconnection switch unit.The service entrance switch of the utility model to low-tension switch cabinet breaks down and detects and protect breaking down, even if occurred that fault can also ensure inlet wire line work.
As a kind of preferred version of such scheme, be connected by section breaker unit between described a pair end of incoming cables.Two ends of incoming cables link together by section breaker unit, make the transformer unit paired running on two ends of incoming cables.
As a kind of preferred version of such scheme, described each interconnection switch unit one end is connected on the incoming line switch unit on fail-safe end of incoming cables, and each interconnection switch unit other end to be connected between the service entrance switch end of respective end of incoming cables and section breaker unit on circuit.When incoming line switch unit breaks down, closed corresponding interconnection switch unit, makes inlet wire circuit still be in conducting state.
As a kind of preferred version of such scheme, also include cutoff switch unit, described cutoff switch unit is connected on the circuit between fail-safe end incoming line switch unit and each interconnection switch unit.
As a kind of preferred version of such scheme, described incoming line switch unit, interconnection switch unit, section breaker unit and Disconnecting switch unit are circuit breaker.
The utility model has the advantages that: can break down to the service entrance switch of low-tension switch cabinet and detect, and protect breaking down, even if occurred that fault can also ensure inlet wire line work, ensure that low-tension switch cabinet normally works.
Accompanying drawing explanation
Fig. 1 is a kind of structural frames diagram of the present utility model;
Fig. 2 is a kind of electrical block diagram of the present utility model.
1-transformer unit 2-incoming line switch unit 3-interconnection switch unit 4-section breaker unit 5-cutoff switch unit 6-fault detection unit 7-DLC control unit.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is further described.
Embodiment:
The low-tension switch cabinet of the intelligent communication of the present embodiment, as depicted in figs. 1 and 2, is comprised some inlet wire circuits be formed by connecting by a pair end of incoming cables, is connected between a pair end of incoming cables by section breaker unit 4.Each end of incoming cables is connected with transformer unit 1 and incoming line switch unit 2, each incoming line switch unit is connected with DLC control unit respectively, switch cubicle also includes fail-safe end of incoming cables and fault detection unit 6, fail-safe end of incoming cables is connected with incoming line switch unit 2, this incoming line switch unit is connected with DLC control unit, and each end of incoming cables is all provided with a circuit and is connected to fault end of incoming cables respectively by interconnection switch unit 3.Each interconnection switch unit one end is connected on the incoming line switch unit 2 on fail-safe end of incoming cables, and each interconnection switch unit other end to be connected between the service entrance switch end 2 of respective end of incoming cables and section breaker unit 4 on circuit.Each interconnection switch unit 3 is connected with DLC control unit 7 respectively, and fault detection unit 6 is connected respectively on each incoming line switch unit 2, and fault detection unit is connected with DLC control unit 7.Circuit between fail-safe end incoming line switch unit 2 and each interconnection switch unit 3 is connected with cutoff switch unit 5.Incoming line switch unit 2, interconnection switch unit 3, section breaker unit 4 and Disconnecting switch unit 5 are all circuit breaker.
As shown in Figure 2, the present embodiment provides physical circuit figure and is described, and includes 5 ends of incoming cables, is respectively end of incoming cables a, end of incoming cables b, end of incoming cables c, end of incoming cables d, with fail-safe inlet wire section e, each end of incoming cables is connected with transformer unit and incoming line switch unit.Wherein carry out end a to be connected by section breaker unit A2 with end of incoming cables b, carry out end c and be connected by section breaker unit C2 with end of incoming cables d, form two inlet wire circuits arranged side by side.Each end of incoming cables is also provided with a circuit to be connected on fail-safe end of incoming cables by interconnection switch unit, as shown in Figure 2, is connected on one end of cutoff switch E1.
The present embodiment low-tension switch cabinet course of work is:
Under normal circumstances, incoming line switch unit A, B, C, D, E are in "on" position, and section breaker unit A2, C2 are in "on" position, and cutoff switch section unit E1 is in "on" position, and interconnection switch unit A1, B1, C1, D1 are in gate-dividing state.
When incoming line switch unit arbitrary in incoming line switch unit A, B, C, D breaks down, each self-corresponding interconnection switch unit automatic closing.
When service entrance switch E breaks down for during heavy duty, close interconnection switch unit A1, B1, C1, D1.
Break down when wiretap E is underloading, any one interconnection switch unit in close interconnection switch unit A1, B1, C1, D1.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Although more employ the terms such as transformer unit, incoming line switch unit, interconnection switch unit, section breaker unit herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present invention more easily; The restriction that they are construed to any one additional is all contrary with spirit of the present invention.

Claims (5)

1. the low-tension switch cabinet of an intelligent communication, comprise some inlet wire circuits be formed by connecting by a pair end of incoming cables, each end of incoming cables is connected with transformer unit and incoming line switch unit, each incoming line switch unit is connected with DLC control unit respectively, it is characterized in that: also include fail-safe end of incoming cables and fault detection unit (6), fail-safe end of incoming cables is connected with incoming line switch unit (2), this incoming line switch unit is connected with DLC control unit, each end of incoming cables is all provided with a circuit and is connected to fault end of incoming cables respectively by interconnection switch unit, described each interconnection switch unit is connected with DLC control unit respectively, described fault detection unit (6) is connected respectively on each incoming line switch unit (2), and fault detection unit is connected with DLC control unit.
2. the low-tension switch cabinet of intelligent communication according to claim 1, is characterized in that being connected by section breaker unit (4) between described a pair end of incoming cables.
3. the low-tension switch cabinet of intelligent communication according to claim 2, it is characterized in that described each interconnection switch unit (3) one end is connected on the incoming line switch unit (2) on fail-safe end of incoming cables, each interconnection switch unit other end to be connected between the service entrance switch end (2) of respective end of incoming cables and section breaker unit (4) on circuit.
4. the low-tension switch cabinet of the intelligent communication according to claim 1 or 2 or 3, it is characterized in that also including cutoff switch unit (5), described cutoff switch unit is connected on the circuit between fail-safe end incoming line switch unit (2) and each interconnection switch unit (3).
5. the low-tension switch cabinet of the intelligent communication according to claim 1 or 2 or 3, is characterized in that described incoming line switch unit (2), interconnection switch unit (3), section breaker unit (4) and Disconnecting switch unit (5) are circuit breaker.
CN201520716348.0U 2015-09-16 2015-09-16 But low -voltage switchgear of intelligent communication Active CN205016847U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520716348.0U CN205016847U (en) 2015-09-16 2015-09-16 But low -voltage switchgear of intelligent communication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520716348.0U CN205016847U (en) 2015-09-16 2015-09-16 But low -voltage switchgear of intelligent communication

Publications (1)

Publication Number Publication Date
CN205016847U true CN205016847U (en) 2016-02-03

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CN201520716348.0U Active CN205016847U (en) 2015-09-16 2015-09-16 But low -voltage switchgear of intelligent communication

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113009850A (en) * 2021-03-07 2021-06-22 广东电网有限责任公司广州供电局 Intelligent operation method and device of low-voltage contact cabinet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113009850A (en) * 2021-03-07 2021-06-22 广东电网有限责任公司广州供电局 Intelligent operation method and device of low-voltage contact cabinet
CN113009850B (en) * 2021-03-07 2022-06-07 广东电网有限责任公司广州供电局 Intelligent operation method and device for low-voltage contact cabinet

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