CN103499790A - Online detection device for switching-on/off state of power distribution network - Google Patents

Online detection device for switching-on/off state of power distribution network Download PDF

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Publication number
CN103499790A
CN103499790A CN201310454634.XA CN201310454634A CN103499790A CN 103499790 A CN103499790 A CN 103499790A CN 201310454634 A CN201310454634 A CN 201310454634A CN 103499790 A CN103499790 A CN 103499790A
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CN
China
Prior art keywords
state
switching
circuit
power distribution
distribution network
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
CN201310454634.XA
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Chinese (zh)
Inventor
陈世忠
付刚
陈会玲
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Henan Kaiqi Power Industry Co Ltd
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Henan Kaiqi Power Industry 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 Henan Kaiqi Power Industry Co Ltd filed Critical Henan Kaiqi Power Industry Co Ltd
Priority to CN201310454634.XA priority Critical patent/CN103499790A/en
Publication of CN103499790A publication Critical patent/CN103499790A/en
Pending legal-status Critical Current

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Abstract

The invention relates to an online detection device for a switching-on/off state of a power distribution network. The online detection device for the switching-on/off state of the power distribution network comprises a switching-on/off state detection sensor and a single chip microcomputer system circuit, wherein the switching-on/off state detection sensor is respectively connected with the lower end of a circuit breaker by three paths of voltage signal acquisition circuits; three paths of measured output voltage signals are respectively switched into an optical-coupling isolation module by a current-limiting resistor and a unidirectional protection diode; the optical-coupling isolation module is respectively connected with an I/O (Input/Output) input port of a single chip microcomputer in the single chip microcomputer system unit; and the single chip microcomputer system circuit controls to calculate a switching-on/off state electric parameter and outputs the electric parameter to a remote transmission unit. The online detection device for the switching-on/off state of a power distribution transformer provided by the invention can more economically and ideally realize online detection and uploading of the switching-on/off state of the power distribution transformer; and the auxiliary effect of a partial function of the online detection of the switching-on/off state of the lightning arrester of the power distribution transformer is acted on automatic control of a power distribution system.

Description

The composition of Switching State of Distribution Network on-line measuring device
Technical field
The present invention relates to a kind of for the composition of Switching State of Distribution Network on-line measuring device.
Background technology
Along with developing rapidly of power industry, the process of distribution system automation control technology is further accelerated.But the realization of distribution system automation control technology, the automatically-monitored of infrastructure device of must take is basis.And the power distribution network switch is as the widely used basic device of distribution system, its duty has directly determined the operation of distribution system.Therefore, its operating mode is monitored, contributed to the robotization control and management of distribution system.
The confirmation of composition of Switching State of Distribution Network, be divided into two kinds, and a kind of is the switchgear that obvious cut-off point is arranged, as high pressure isolated operation switch, fuse switch (also claim zero can), low voltage isolation switch, low-voltage knife switch or switch with knifeshaped fuse, Low voltage knife switch etc.A kind of is the obviously switchgear of cut-off point of nothing, as primary cut-out, sulfur hexafluoride breaker, and low-voltage circuit breaker or A.C. contactor, automatic switch, with no pressure contactor etc.Latter's device for switching is in actual motion, and because on off state does not understand, in operation transmission or not process, its on off state of living in (being the position of disjunction of living in or connection) is extremely important.For example: when wish has a power failure, if because of certain primary cut-out or low-voltage circuit breaker fault (upper and lower dynamic and static contact adhesion), will cause the operation that has a power failure unsuccessful; While wanting power transmission, if because of certain primary cut-out or low-voltage circuit breaker fault (upper and lower dynamic and static contact is bad), will cause the power transmission operation unsuccessful.Particularly adopt the even more important of Long-distance Control mode.
At present, this switch electric fault phenomenon is not also had to ripe monitoring technology.After fault occurs, just know the harm that on off state causes often.Such power distribution network running status, will certainly cause power supply reliability poor, and the device damage rate is high.Therefore, how to realize that the real-time online of on off state detects, accomplish to prevent trouble before it happens, become current problem demanding prompt solution.
Summary of the invention
The present invention is directed to the problem that background technology proposes, propose a kind of simple in structurely, the on off state on-line measuring device that operation characteristic is more satisfactory, contribute to improve power supply reliability.
To achieve these goals, the technical solution adopted in the present invention is:
A kind of composition of Switching State of Distribution Network on-line measuring device; comprise: on off state detecting sensor and microcontroller system circuit; described on off state sensor adopts three tunnel voltage signal acquisition circuit to be connected to the isolating switch lower end; record the three-phase output voltage signal respectively by current-limiting resistance and unidirectional protection diode access light-coupled isolation module; an I/O input port that connects respectively single-chip microcomputer in microcontroller system circuit by the light-coupled isolation module, controlled and calculated the on off state electrical quantity and output to the teletransmission unit by microcontroller system circuit.
Described composition of Switching State of Distribution Network on-line measuring device, microcontroller system circuit comprises core CPU module, peripheral circuit and communication module, in the core CPU module, the serial communication interface of single-chip microcomputer connects the uplink communication module, communication module adopts RS-485 bus communication mode, or adopts CAN bus or BUS bus communication mode.
Described composition of Switching State of Distribution Network on-line measuring device, described microcontroller system circuit comprises core CPU module, peripheral circuit, the teletransmission unit adopts the MANET wireless communication module based on wireless technology or the mobile communication module of bidirectional transmit-receive.
The useful good effect of invention:
1, substation transformer switch state detector of the present invention, can be comparatively economic, the desirable substation transformer on off state of realizing detects online and uploads, and it is for realizing that distribution system automation controls the booster action that will play the online test section of substation transformer on off state function.
2, substation transformer switch state detector of the present invention, simple in structure, cost is low, easily realizes, and easy to use, it is applied, and contributes to improve the Automation of Electric Systems level of control, improves power supply quality.
The accompanying drawing explanation
Fig. 1 is on off state detecting sensor scheme of installation of the present invention;
Fig. 2 is voltage signal acquisition optical coupling isolation circuit schematic diagram;
Fig. 3 is switch state detector microcontroller system circuit schematic diagram of the present invention.
Embodiment
Below by embodiment, technical scheme of the present invention is described in further detail.
embodiment 1
As Fig. 1, 2, Fig. 3, composition of Switching State of Distribution Network on-line measuring device of the present invention, comprise on off state detecting sensor and microcontroller system circuit, described on off state sensor 102 adopts three tunnel voltage signal acquisition circuit to be connected to isolating switch 101 lower ends, record the three-phase output voltage signal respectively by current-limiting resistance and unidirectional protection diode access light-coupled isolation module, an I/O input port that connects respectively single-chip microcomputer in microcontroller system circuit by the light-coupled isolation module, control and calculate the on off state electrical quantity and output to the teletransmission unit by microcontroller system circuit.
The output signal end of number in the figure 103 representation switch state sensors 102.
Wherein, microcontroller system circuit comprises core CPU module, peripheral circuit and communication module, in the core CPU module, the serial communication interface of single-chip microcomputer connects the uplink communication module, and communication module adopts RS-485 bus communication mode, or adopts CAN bus or BUS bus communication mode.
Be connected with when prison storage module with described single-chip microcomputer, keep with the preservation that realizes the on off state recorded information and the preservation of running parameter.
Embodiment 2
The composition of Switching State of Distribution Network on-line measuring device of the present embodiment, as different from Example 1: the teletransmission unit adopts the MANET wireless communication module based on wireless technology of bidirectional transmit-receive or adopts the mobile communication module.On off state sensor 102 is for the online detection of on off state, and microcontroller system circuit is controlled and calculated the on off state electrical quantity and output to the teletransmission unit.

Claims (3)

1. a composition of Switching State of Distribution Network on-line measuring device; comprise: on off state detecting sensor and microcontroller system circuit; it is characterized in that: described on off state sensor adopts three tunnel voltage signal acquisition circuit to be connected to the isolating switch lower end; record the three-phase output voltage signal respectively by current-limiting resistance and unidirectional protection diode access light-coupled isolation module; an I/O input port that connects respectively single-chip microcomputer in microcontroller system circuit by the light-coupled isolation module, controlled and calculated the on off state electrical quantity and output to the teletransmission unit by microcontroller system circuit.
2. composition of Switching State of Distribution Network on-line measuring device according to claim 1, it is characterized in that: described microcontroller system circuit comprises core CPU module, peripheral circuit and communication module, in the core CPU module, the serial communication interface of single-chip microcomputer connects the uplink communication module, communication module adopts RS-485 bus communication mode, or adopts CAN bus or BUS bus communication mode.
3. composition of Switching State of Distribution Network on-line measuring device according to claim 1, it is characterized in that: described microcontroller system circuit comprises core CPU module, peripheral circuit, and the teletransmission unit adopts the MANET wireless communication module based on wireless technology or the mobile communication module of bidirectional transmit-receive.
CN201310454634.XA 2013-09-30 2013-09-30 Online detection device for switching-on/off state of power distribution network Pending CN103499790A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310454634.XA CN103499790A (en) 2013-09-30 2013-09-30 Online detection device for switching-on/off state of power distribution network

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310454634.XA CN103499790A (en) 2013-09-30 2013-09-30 Online detection device for switching-on/off state of power distribution network

Publications (1)

Publication Number Publication Date
CN103499790A true CN103499790A (en) 2014-01-08

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105606989A (en) * 2015-11-05 2016-05-25 浙江海得新能源有限公司 Circuit test method, device and system
CN107526003A (en) * 2017-07-20 2017-12-29 北京天泰怡和科技有限公司 Intelligent distribution network automatic analysis system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101088133A (en) * 2004-12-23 2007-12-12 西门子公司 Method and device for the secure operation of a switching device
WO2012079841A1 (en) * 2010-12-15 2012-06-21 Abb Technology Ag Combined measuring and detection system
EP2503343A1 (en) * 2011-03-25 2012-09-26 General Electric Company Systems, methods, and apparatus for detecting theft and status of electrical power
CN103076560A (en) * 2012-03-30 2013-05-01 重庆市电力公司检修分公司 Combined device for contactless type measurement through electrical testing equipment and application thereof
CN203054193U (en) * 2012-12-31 2013-07-10 青岛特锐德电气股份有限公司 On-line monitoring system for mechanical characteristic of vacuum circuit breaker
CN203561730U (en) * 2013-09-30 2014-04-23 河南开启电力实业有限公司 Power distribution network switch state online detection device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101088133A (en) * 2004-12-23 2007-12-12 西门子公司 Method and device for the secure operation of a switching device
WO2012079841A1 (en) * 2010-12-15 2012-06-21 Abb Technology Ag Combined measuring and detection system
EP2503343A1 (en) * 2011-03-25 2012-09-26 General Electric Company Systems, methods, and apparatus for detecting theft and status of electrical power
CN103076560A (en) * 2012-03-30 2013-05-01 重庆市电力公司检修分公司 Combined device for contactless type measurement through electrical testing equipment and application thereof
CN203054193U (en) * 2012-12-31 2013-07-10 青岛特锐德电气股份有限公司 On-line monitoring system for mechanical characteristic of vacuum circuit breaker
CN203561730U (en) * 2013-09-30 2014-04-23 河南开启电力实业有限公司 Power distribution network switch state online detection device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105606989A (en) * 2015-11-05 2016-05-25 浙江海得新能源有限公司 Circuit test method, device and system
CN107526003A (en) * 2017-07-20 2017-12-29 北京天泰怡和科技有限公司 Intelligent distribution network automatic analysis system

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Application publication date: 20140108

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