CN206515421U - Monitoring system based on distributed single-phase earth fault monitoring terminal - Google Patents
Monitoring system based on distributed single-phase earth fault monitoring terminal Download PDFInfo
- Publication number
- CN206515421U CN206515421U CN201720019472.0U CN201720019472U CN206515421U CN 206515421 U CN206515421 U CN 206515421U CN 201720019472 U CN201720019472 U CN 201720019472U CN 206515421 U CN206515421 U CN 206515421U
- Authority
- CN
- China
- Prior art keywords
- earth fault
- phase earth
- distributed single
- fault monitoring
- monitoring terminal
- 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.)
- Active
Links
Abstract
The utility model is related to a kind of monitoring system based on distributed single-phase earth fault monitoring terminal, including multiple distributed single-phase earth fault monitoring terminals, server and communication network, multiple distributed single-phase earth fault monitoring terminals and server are interconnected by communication network and transmit information mutually.The utility model can effectively utilize the historical failure data and recorder data that monitor circuit that distributed single-phase earth fault monitoring terminal stores in switch cubicle, Substation Station circulating net cabinet and distribution line terminal box body in Substation Station, carry out integrating statistical analysis judgement, the reliability and accuracy of failure line selection and fault section location are improved, shortens trouble shooting time and reduces operation maintenance personnel amount of labour raising power supply reliability.
Description
Technical field
The utility model belongs to the automatically-monitored technical field of power system transformer substation and power distribution network, is related to one kind and is based on
The monitoring system of distributed single-phase earth fault monitoring terminal.
Background technology
Small current neutral grounding mode being used China's 6~35kV medium voltage distribution networks, single-phase connect occurs for small current neutral grounding system more
The probability highest of earth fault, can account for the 80% of total failare.After low current grounding, it is allowed to which system was no longer than in 2 hours,
It can operate with failure to improve power supply reliability.But long-play easily makes failure propagation short into or multipoint earthing at 2 points
Road, arc grounding can also cause total system overvoltage, and then damage equipment, system safety operation be destroyed, so must look in time
To faulty line and cut off.For the more faulty line of the longer branch of circuit, to search as early as possible basic routing line or
Branched line failure.Reclosing, fast recovery of power supply are carried out after failure removal in time.
Single phase earthing protection device special at present is all arranged on substation secondary master control room substantially, with transient state route selection
It is general using the pattern for concentrating route selection based on principle, i.e., by the zero-sequence current concentrated collection of each switch cubicle in transformer station
Reason, route selection result is generally forwarded to the subdispatch center of power system by comprehensive automation system of transformer substation, according to circumstances again
Carry out the operations such as feeder switch tripping operation reclosing.And for the more circuit of the longer branch of circuit mainly by transformer station outside ring
The protection location of distribution terminal on net cabinet or circuit is detected, singlephase earth fault judgement is carried out to branched line, is jumped
Lock and reclosing.
When singlephase earth fault occurs and after generation, with being obtained respectively in circuit trunk outside transformer station and branch in transformer station
Fault message and recorder data, do not obtain unified integration, processing and analyze.It is responsible for the scheduling fortune of tripping operation reclosing order
The O＆M maintainer that administrative staff and responsible line walking search failure cause cannot get blindness work in the case that effective information is indicated
Make so that search Failure And Recovery power-on time and greatly prolong.
The content of the invention
The utility model provides a kind of monitoring system based on distributed single-phase earth fault monitoring terminal, can be effective
Utilization Substation Station in switch cubicle, distributed single-phase earth fault in Substation Station circulating net cabinet and distribution line terminal box body
The historical failure data and recorder data that monitor circuit that monitoring terminal stores, carry out integrating statistical analysis judgement, improve event
Hinder the reliability and accuracy of route selection and fault section location.
The technical solution of the utility model is as follows：
A kind of monitoring system based on distributed single-phase earth fault monitoring terminal, including multiple distributed single-phase earthing events
Hinder monitoring terminal, server and communication network.Multiple distributed single-phase earth fault monitoring terminals and server pass through communication
The network interconnection simultaneously transmits mutually information.
As further improvement of the utility model, the distributed single-phase earth fault monitoring terminal is distributed in transformer station
In standing in switch cubicle, Substation Station circulating net cabinet and distribution line terminal box body.
As further improvement of the utility model, the server is collected each by communication network and distributed single-phase connect
Historical failure data, recorder data, configuration information and the setting parameter of earth fault monitoring terminal storage, and being capable of download configuration
Information and setting parameter.
As further improvement of the utility model, it is described be distributed in Substation Station in switch cubicle distributed single-phase connect
Earth fault monitoring terminal can independently exchange information in groups in transformer station by communication network, carry out failure line selection, failure and jump
Lock and reclosing.
As further improvement of the utility model, it is described be distributed in Substation Station in switch cubicle distributed single-phase connect
Terminal passes through communication in earth fault monitoring terminal and the Substation Station circulating net cabinet and distribution line terminal box body that belong to this circuit together
Network can independently exchange information in groups, carry out fault section location.
As further improvement of the utility model, the server is united according to historical failure data and recorder data
There is provided the sequence list and time setting ginseng that the failure line selection and fault section of circuit and branch line carry out tripping operation reclosing for meter analysis
Number, line fault early warning and line maintenance plan.
Compared with prior art, the beneficial effects of the utility model are to be based on distributed single-phase earth fault monitoring terminal
Monitoring system the fault data in the transformer station of monitored circuit and outside transformer station can be collected, substantially increase number
It is believed that breath is comprehensive.Handled by effective confluence analysis, improve the judgement of faulty line and the lookup of fault section
Reliability and accuracy, power supply reliability is improved so as to shorten trouble shooting time and reduce operations staff's amount of labour.
Brief description of the drawings
Accompanying drawing 1 is the monitoring system composition structural representation based on distributed single-phase earth fault monitoring terminal；
Embodiment
It is new to this practicality with reference to the accompanying drawings and detailed description for clearer explaination advantage of the present utility model
Type is further described in detail.Many instantiations are listed in the following description to fully understand the utility model
Advantage, but the utility model can also be different from other modes described here using other implement, therefore this practicality
The new limitation for being not limited to following public instantiation.
As shown in figure 1, the monitoring system based on distributed single-phase earth fault monitoring terminal is single-phase including multiple distributions
Ground fault detection terminal and server.Multiple distributed single-phase earth fault monitoring terminals are distributed in switch cubicle in Substation Station
In interior, transformer station's circulating net cabinet, in the distribution terminal FTU casings of circuit and in demarcation switch casing.
Multiple distributed single-phase earth fault monitoring terminals and server interconnect and transmit information mutually.Server is collected respectively
Historical failure data, recorder data, configuration information and the setting parameter of individual distributed single-phase earth fault monitoring terminal storage, and
And being capable of download configuration information and setting parameter.
Distributed single-phase earth fault monitoring terminal in switch cubicle is distributed in Substation Station in transformer station by logical
News network can independently exchange information in groups, carry out failure line selection, fault trip and reclosing.
The distributed single-phase earth fault monitoring terminal being distributed in Substation Station in switch cubicle and the change for belonging to this circuit together
Terminal in power station station circulating net cabinet, distribution line terminal FTU casings can independently exchange information in groups by communication network, enter
Row fault section location.
Above-described embodiment is only preferred embodiment of the present utility model, is not limited to the utility model, for
For those skilled in the art, the utility model can have various modifications and variations.It is all in spirit of the present utility model and former
Within then, any modification, equivalent variations, improvement for being made etc. should be included within protection domain of the present utility model.
Claims (6)
1. a kind of monitoring system based on distributed single-phase earth fault monitoring terminal, it is characterised in that：Including multiple distributions
Singlephase earth fault monitoring terminal, server and communication network, multiple distributed single-phase earth fault monitoring terminals and service
Device is interconnected by communication network and transmits information mutually.
2. a kind of monitoring system based on distributed single-phase earth fault monitoring terminal according to claim 1, its feature
It is：The distributed single-phase earth fault monitoring terminal be distributed in switch cubicle in Substation Station, Substation Station circulating net cabinet and
In distribution line terminal box body.
3. a kind of monitoring system based on distributed single-phase earth fault monitoring terminal according to claim 1, its feature
It is：The server collects the historical failure number that each distributed single-phase earth fault monitoring terminal stores by communication network
According to, recorder data, configuration information and setting parameter, and being capable of download configuration information and setting parameter.
4. a kind of monitoring system based on distributed single-phase earth fault monitoring terminal according to claim 2, its feature
It is：The distributed single-phase earth fault monitoring terminal being distributed in Substation Station in switch cubicle is in transformer station by logical
News network can independently exchange information in groups, carry out failure line selection, fault trip and reclosing.
5. a kind of monitoring system based on distributed single-phase earth fault monitoring terminal according to claim 2, its feature
It is：The distributed single-phase earth fault monitoring terminal being distributed in Substation Station in switch cubicle and the change for belonging to this circuit together
Terminal can independently exchange information in groups by communication network in power station station circulating net cabinet and distribution line terminal box body, carry out event
Hinder section positioning.
6. a kind of monitoring system based on distributed single-phase earth fault monitoring terminal according to claim 3, its feature
It is：The server carries out statistical analysis according to historical failure data and recorder data, and there is provided the failure of circuit and branch line
Route selection and fault section carry out the sequence list and time setting parameter, line fault early warning and line maintenance meter of tripping operation reclosing
Draw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720019472.0U CN206515421U (en) | 2017-01-09 | 2017-01-09 | Monitoring system based on distributed single-phase earth fault monitoring terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720019472.0U CN206515421U (en) | 2017-01-09 | 2017-01-09 | Monitoring system based on distributed single-phase earth fault monitoring terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206515421U true CN206515421U (en) | 2017-09-22 |
Family
ID=59864632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720019472.0U Active CN206515421U (en) | 2017-01-09 | 2017-01-09 | Monitoring system based on distributed single-phase earth fault monitoring terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206515421U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109888747A (en) * | 2019-03-12 | 2019-06-14 | 南京南瑞继保电气有限公司 | A kind of distribution earthing wire-selecting system and method |
-
2017
- 2017-01-09 CN CN201720019472.0U patent/CN206515421U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109888747A (en) * | 2019-03-12 | 2019-06-14 | 南京南瑞继保电气有限公司 | A kind of distribution earthing wire-selecting system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106124935B (en) | Middle and low voltage network Fault Locating Method | |
| CN102510048B (en) | Anti-override trip protection method | |
| CN107895954A (en) | The enhancing disturbance management of electric power pool | |
| CN105281435A (en) | Intelligent distribution network oriented distribution type fault detection and isolation system and working method | |
| CN103607042B (en) | The distribution network failure processing method of long fault indicator for overhead lines towards outskirts of a town | |
| CN106291245A (en) | A kind of distribution network failure actively generates and sends repaiies method and apparatus | |
| CN103475098A (en) | Intelligent power distribution monitoring system | |
| CN101871988A (en) | System and method for positioning medium voltage distribution network using power line carrier communication | |
| CN105573283B (en) | The foundation in substation equipment function association storehouse and the filter method of event correlation information group | |
| CN103227450B (en) | On-line failure recovery method and system | |
| CN106160227A (en) | A kind of intelligent substation entirely stand communication network unified management method | |
| CN109490691A (en) | Signal identification type fault detector and Fault Locating Method are applied outside a kind of | |
| CN101741060A (en) | Demarcation circuit breaker device and remote monitoring method thereof | |
| CN104821661B (en) | A kind of power information acquisition system with residual current monitoring function | |
| CN111276929B (en) | Information recording method for fault expert diagnosis of power system | |
| CN112583117A (en) | Data assembly service system based on intelligent edge terminal | |
| CN110380378A (en) | Distributed 10KV power distribution network monitoring and protection system and guard method | |
| CN106451770B (en) | One kind is based on the low fault-tolerant monitoring information interaction system of distribution system | |
| CN204330940U (en) | A kind of line fault monitoring system | |
| Siirto et al. | Fault location, isolation and restoration in a city distribution network | |
| CN206515421U (en) | Monitoring system based on distributed single-phase earth fault monitoring terminal | |
| CN111327474B (en) | Power system fault diagnosis method based on topology analysis | |
| CN207117310U (en) | A kind of intelligent traction substation framework | |
| CN106908694B (en) | A kind of distribution line failure indicator and its detection method based on IEC61850 | |
| Hodgson | The use GSM and web based SCADA for monitoring Fault Passage Indicators |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |