CN103532232B - A kind of in-situ protection system of distribution - Google Patents
A kind of in-situ protection system of distribution Download PDFInfo
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- CN103532232B CN103532232B CN201310471057.5A CN201310471057A CN103532232B CN 103532232 B CN103532232 B CN 103532232B CN 201310471057 A CN201310471057 A CN 201310471057A CN 103532232 B CN103532232 B CN 103532232B
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- 238000009826 distribution Methods 0.000 title claims abstract description 34
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 9
- 238000001514 detection method Methods 0.000 claims abstract description 49
- 238000004891 communication Methods 0.000 claims description 12
- 238000004458 analytical method Methods 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 4
- 238000013024 troubleshooting Methods 0.000 abstract description 7
- 238000002955 isolation Methods 0.000 abstract description 5
- 238000007726 management method Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 7
- 230000032683 aging Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000007405 data analysis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a kind of in-situ protection system of distribution; comprise on-pole switch; on-pole switch is arranged on electric pole; electric pole is arranged on and exports on the distribution line of subscriber equipment by transformer station; described on-pole switch connects feeder automation detection and control terminal; described feeder automation detection and control terminal is also connected with current transformer and voltage transformer, and described current transformer and voltage transformer are connected in the distribution line of electric pole position.Carry out management and the troubleshooting of distribution network systems in prior art mainly through controlling master station, troubleshooting speed is slow, and can cause large-scale power failure, and the loss of economical production is large.The present invention can realize the isolation on the spot of fault point, avoids the power failure on a large scale of fault zone, and controls without the need to relying on controlling center, accelerates the speed of troubleshooting.
Description
Technical field
The present invention relates to power protection system, the in-situ protection system of particularly a kind of distribution.
Background technology
In existing distribution network systems; by feeder automation detection and control terminal complete to regard to place power network signal detection and be sent to control sub-station; be sent to by control sub-station and control master station; by controlling the treatment and analysis of master station; when finding that there is fault message; send control information the control sub-station of fault zone, and control sub-station controls feeder protection equipment action, controlled the power supply of disengagement failure region transformer by feeder protection equipment.The isolation of fault point cannot be realized, cause the power failure on a large scale of fault zone, have impact on the power supply of important load in distribution, cause the heavy losses of economical production, and all depend on controlling center to the process of fault message with control, controlling center load is large, and because electric network data amount is large, control information process is slow, has delayed the process of fault message, may cause the damage of grid equipment.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of in-situ protection system of distribution, can realize the isolation on the spot of fault point, avoids the power failure on a large scale of fault zone, and controls without the need to relying on controlling center, accelerates the speed of troubleshooting.
In order to solve the problems of the technologies described above; the present invention adopts following technical scheme: a kind of in-situ protection system of distribution; comprise on-pole switch; on-pole switch is arranged on electric pole; electric pole is arranged on and exports on the distribution line of subscriber equipment by transformer station; described on-pole switch connects feeder automation detection and control terminal, and described feeder automation detection and control terminal is also connected with current transformer and voltage transformer, and described current transformer and voltage transformer are connected in the distribution line of electric pole position.Described feeder automation detection and control terminal detects the voltage and current signal on distribution line, due to transmission general on electric pole is high-tension electricity, feeder automation detection and control terminal cannot detect high-tension electricity, could be detected after needing the voltage and current being converted to the low-pressure system of 220V or 380V of standard through voltage transformer summation current transformer by feeder automation detection and control terminal.When feeder automation detection and control terminal detect want institute to connect distribution line occurs for such as phase fault or earth fault time, sending controling instruction is to on-pole switch, and the circuit at on-pole switch disengagement failure point place, isolates fault point.Comparing original mode of carrying out electric network data analysis and troubleshooting by controlling master station, accelerating the process of fault point, avoid the power equipment that process causes of delaying because of fault to damage, also mitigate the burden controlling master station simultaneously.Avoiding large-scale power failure by isolated fault point on the spot, the impact that important load in distribution is powered can not be caused, reducing the economical production loss caused because having a power failure.
As preferred further, described feeder automation detection and control terminal comprises signal deteching circuit, control circuit and telecommunication circuit;
Signal deteching circuit: the voltage and current signal of Real-time Collection electric pole place distribution line, and by current transformer and voltage transformer, the high-pressure system signal of telecommunication is converted to the standard low pressure system signal of telecommunication;
Control circuit: be electrically connected with on-pole switch, the voltage and current signal that treatment and analysis signal deteching circuit detects, sending controling instruction controls cut-offfing of on-pole switch;
Telecommunication circuit: connection control circuit, is sent to the control sub-station at transformer place by the electric network data in control circuit.
As preferably, a bin is surrounded by outside described feeder automation detection and control terminal, described bin is provided with cable connecting interface, and described on-pole switch, current transformer and voltage transformer are connected to the signal deteching circuit of feeder automation detection and control terminal through described cable connecting interface.Because feeder automation detection and control terminal is arranged on open air, be subject to the interference of the factors such as weather, and equipment long term exposure outside, easy quickening ageing equipment, at the additional bin of feeder automation detection and control terminal, cause interference when preventing extraneous factor from detecting signal deteching circuit, and avoid the quick aging of equipment.
As preferably, the telecommunication circuit of described feeder automation detection and control terminal connects communication equipment, described communication equipment be connected to substation control sub-station on.Feeder automation detection and control terminal is by the power network signal in telecommunication circuit sending controling circuit and through communication device transfers in control sub-station.Feeder line due to distribution network systems connects complicated; feeder line is provided with a lot of electric poles; each electric pole connects a feeder automation detection and control terminal; detection and control is carried out to the distribution information be just located in; the electric network data that feeder automation detection and control terminals all on feeder line detects is sent in control sub-station; be convenient to the unified management of electric network data; and when breaking down, on-pole switch is failure to actuate; feeder protection equipment is controlled by control sub-station; transformer station can be powered cut-out, to prevent the damage of power equipment.
Institute is as preferred, and described feeder automation detection and control terminal and communication equipment are installed on electric pole.To install and easy to connect, and save the cable of connection, saved equipment cost.
As preferably, described communication equipment is connected by aerial fiber cable with control sub-station.Aerial cable, from overhead cabling, can not impact pedestrian's daily life.
After adopting technique scheme, tool of the present invention has the following advantages:
By feeder automation detection and control terminal detection of grid information, when detection finds that there is fault, sending controling instruction is to connected on-pole switch, and on-pole switch disconnects, isolated fault point.Avoid the power failure on a large scale of fault zone, and control without the need to relying on controlling center, alleviate the burden of controlling center, accelerate troubleshooting speed.Feeder automation detection and control terminal also can communicate with control sub-station, when on-pole switch is failure to actuate breaking down, controls feeder protection equipment by control sub-station, and cut-out of transformer station being powered prevents the damage of power equipment.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further:
Fig. 1 is winding diagram of the present invention.
Embodiment
As shown in Figure 1, a kind of in-situ protection system of distribution, comprises on-pole switch, and on-pole switch is arranged on electric pole 1, and electric pole 1 is arranged on and exports on the distribution line of subscriber equipment by transformer station, and described on-pole switch connects feeder automation detection and control terminal.Described feeder automation detection and control terminal comprises signal deteching circuit, control circuit and telecommunication circuit.Described signal deteching circuit connection control circuit, control circuit connects telecommunication circuit.Described feeder automation detection and control terminal has also been connected to current transformer and voltage transformer, and described current transformer and voltage transformer are connected in the distribution line of electric pole 1 position.
The voltage and current signal of signal deteching circuit Real-time Collection electric pole 1 place distribution line, and by current transformer and voltage transformer, the high-pressure system signal of telecommunication is converted to the standard low pressure system signal of telecommunication; Control circuit electrical connection on-pole switch, the voltage and current signal gathered carries out treatment and analysis by control circuit, judges whether to there is the problem such as overcurrent, short circuit, and sending controling instruction controls cut-offfing of on-pole switch.When there is the such as problem such as overcurrent, short circuit if judge, control circuit sending controling instruction disconnects on-pole switch, realizes the isolation on the spot of fault point.For convenience of control sub-station to the unified management of the electric network data in distribution region, described telecommunication circuit connection control circuit, the electric network data in control circuit is sent to substation control sub-station.
A bin 2 is surrounded by outside described feeder automation detection and control terminal, described bin 2 is provided with cable connecting interface, and described on-pole switch, current transformer and voltage transformer are connected to the signal deteching circuit of feeder automation detection and control terminal through described cable connecting interface.Because feeder automation detection and control terminal is arranged on open air, be subject to the impact of the factors such as weather, and equipment long term exposure outside, accelerate the progress of ageing equipment, at the additional bin 2 of feeder automation detection and control terminal, cause interference when preventing extraneous factor from detecting signal deteching circuit, and avoid the quick aging of equipment.
Due to transmission general on electric pole 1 is high-tension electricity, feeder automation detection and control terminal cannot detect high-tension electricity, could be detected after needing the voltage and current being converted to the low-pressure system of 220V or 380V of standard through voltage transformer summation current transformer by feeder automation detection and control terminal.When after the input current detection voltage and current signal of feeder automation detection and control terminal, after control unit treatment and analysis, judge that institute connects when distribution line occurs for such as phase fault or earth fault, sending controling instruction is to on-pole switch, the circuit at on-pole switch disengagement failure point place, on the spot isolated fault point.Data volume to be processed is needed because feeder automation detection and control terminal electric network data to be processed amount will be far smaller than control master station, alleviate the burden controlling master station, and in the control procedure of distribution network systems, master station is controlled without the need to all relying on, solve the problem that original troubleshooting is delayed, avoid the damage of power equipment.To fault point isolation processing, avoiding large-scale power failure, the impact that important load in distribution is powered can not be caused, reducing the economical production loss caused because having a power failure.In addition, feeder line due to distribution network systems connects complicated, feeder line is provided with a lot of electric poles, each electric pole is connected with a feeder automation detection and control terminal, detection and control is carried out to the distribution information be just located in, for convenience of the unified management of electric network data, the telecommunication circuit of described feeder automation detection and control terminal is by communication equipment connection control substation.The electric network data that feeder automation detection and control terminals all on feeder line detects is sent in control sub-station; and when breaking down, on-pole switch is failure to actuate; control feeder protection equipment by control sub-station, cut-out of transformer station can being powered, prevents the damage of power equipment.
As the optimization to the present embodiment, described feeder automation detection and control terminal and communication equipment are installed on electric pole 1, install and easy-to-connect, and save stube cable, reduce equipment cost.Described communication equipment is connected by aerial fiber cable 3 with control sub-station.Aerial fiber cable, from aerial cabling, can not impact pedestrian's daily life.
Except above preferred embodiment, the present invention also has other execution mode, and those skilled in the art can make various change and distortion according to the present invention, only otherwise depart from spirit of the present invention, all should belong to the scope that claims of the present invention define.
Claims (2)
1. the in-situ protection system of a distribution, comprise on-pole switch, on-pole switch is arranged on electric pole (1), electric pole (1) is arranged on and exports on the distribution line of subscriber equipment by transformer station, it is characterized in that: described on-pole switch connects feeder automation detection and control terminal, described feeder automation detection and control terminal is also connected with current transformer and voltage transformer, described current transformer and voltage transformer are connected in the distribution line of electric pole (1) position, described feeder automation detection and control terminal comprises signal deteching circuit, control circuit and telecommunication circuit, signal deteching circuit is used for the voltage and current signal of Real-time Collection electric pole place distribution branch road, and by current transformer and voltage transformer, the high-pressure system signal of telecommunication is converted to the standard low pressure system signal of telecommunication, control circuit is electrically connected with on-pole switch, and for the voltage and current signal that treatment and analysis signal deteching circuit detects, sending controling instruction controls cut-offfing of on-pole switch, telecommunication circuit connection control circuit, for the electric network data in control circuit is sent to substation control sub-station, a bin (2) is surrounded by outside described feeder automation detection and control terminal, described bin (2) is provided with cable connecting interface, described on-pole switch, current transformer and voltage transformer are connected to the signal deteching circuit of feeder automation detection and control terminal through described cable connecting interface, the telecommunication circuit of described feeder automation detection and control terminal connects communication equipment, described communication equipment be connected to substation control sub-station on, described communication equipment is connected by aerial fiber cable (3) with control sub-station.
2. the in-situ protection system of distribution according to claim 1, is characterized in that: described feeder automation detection and control terminal and communication equipment are installed on electric pole (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310471057.5A CN103532232B (en) | 2013-10-10 | 2013-10-10 | A kind of in-situ protection system of distribution |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310471057.5A CN103532232B (en) | 2013-10-10 | 2013-10-10 | A kind of in-situ protection system of distribution |
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| Publication Number | Publication Date |
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| CN103532232A CN103532232A (en) | 2014-01-22 |
| CN103532232B true CN103532232B (en) | 2016-04-27 |
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| CN201310471057.5A Expired - Fee Related CN103532232B (en) | 2013-10-10 | 2013-10-10 | A kind of in-situ protection system of distribution |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104125693B (en) * | 2014-08-12 | 2016-04-06 | 国网重庆市电力公司 | The control method of transformer station's lamp light control system |
| CN104614603B (en) * | 2015-01-08 | 2017-04-12 | 国电南瑞科技股份有限公司 | On-site protection device status detection system and detection method thereof |
| CN105186497B (en) * | 2015-09-02 | 2018-11-09 | 国网上海市电力公司 | A kind of pole-mounted circuit breaker configuration structure and configuration method for high voltage overhead lines |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201673233U (en) * | 2010-05-26 | 2010-12-15 | 西安兴汇电力科技有限公司 | Distribution network line fault judger |
| CN202435023U (en) * | 2012-02-14 | 2012-09-12 | 广州南方电力集团电器有限公司 | Novel intelligent controller of outdoor pole-mounted switch |
| CN202888966U (en) * | 2012-11-08 | 2013-04-17 | 闫祖顺 | Intelligent power grid branch line control equipment |
| CN202978436U (en) * | 2012-12-17 | 2013-06-05 | 熊曼妮 | Remote automatic control system applied to distribution circuit |
| CN203481924U (en) * | 2013-10-10 | 2014-03-12 | 国家电网公司 | On-site protection system for distribution network |
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2013
- 2013-10-10 CN CN201310471057.5A patent/CN103532232B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201673233U (en) * | 2010-05-26 | 2010-12-15 | 西安兴汇电力科技有限公司 | Distribution network line fault judger |
| CN202435023U (en) * | 2012-02-14 | 2012-09-12 | 广州南方电力集团电器有限公司 | Novel intelligent controller of outdoor pole-mounted switch |
| CN202888966U (en) * | 2012-11-08 | 2013-04-17 | 闫祖顺 | Intelligent power grid branch line control equipment |
| CN202978436U (en) * | 2012-12-17 | 2013-06-05 | 熊曼妮 | Remote automatic control system applied to distribution circuit |
| CN203481924U (en) * | 2013-10-10 | 2014-03-12 | 国家电网公司 | On-site protection system for distribution network |
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| CN103532232A (en) | 2014-01-22 |
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Granted publication date: 20160427 |