CN104701824B - A kind of protocol converter, low-voltage network leakage protection system and its intellective protector stipulations automatic switching method - Google Patents
A kind of protocol converter, low-voltage network leakage protection system and its intellective protector stipulations automatic switching method Download PDFInfo
- Publication number
- CN104701824B CN104701824B CN201510063943.3A CN201510063943A CN104701824B CN 104701824 B CN104701824 B CN 104701824B CN 201510063943 A CN201510063943 A CN 201510063943A CN 104701824 B CN104701824 B CN 104701824B
- Authority
- CN
- China
- Prior art keywords
- intelligence
- protector
- network
- former
- total
- 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
- 230000001012 protector Effects 0.000 title claims abstract description 153
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 238000013500 data storage Methods 0.000 claims abstract description 4
- 238000004891 communication Methods 0.000 claims description 22
- 238000012546 transfer Methods 0.000 claims description 18
- 238000012544 monitoring process Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013523 data management Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Data Exchanges In Wide-Area Networks (AREA)
- Small-Scale Networks (AREA)
Abstract
The invention discloses a kind of protocol converter, it include low pressure conversion electric power, forwarding database for producing first data link layer microcontroller, connect the microcontroller respectively up channel and down channel, the forwarding database for storing the first data link layer and stipulations conversion database data storage；When the total protector of intelligence is moved in the second network area from a first network region, the microcontroller detects the former IP address in second data link layer to determine whether the total protector of this intelligence is firmly fixed；When not knowing this total protector of intelligence and being firmly fixed, the microcontroller regenerates the forwarding database of the first data link layer to include the former MAC Address of the total protector of this intelligence；When the microcontroller determines that the total protector of this intelligence is firmly fixed, it is controlled to be shifted to the data of the forwarding database of the second network area according to its former MAC Address.The invention also discloses a kind of low-voltage network leakage protection system and its intellective protector stipulations automatic switching method.
Description
Technical field
Present invention relates particularly to one kind to be used for the total protector of intelligence in low-voltage power distribution station area network or the intermediate protector of intelligence
Protocol converter, especially relate to a kind of low-voltage network leakage protection system and its intellective protector stipulations automatic conversion side
Method.
Background technology
The RCD Electrical Safety protection equipment crucial as countryside low-voltage electric distribution network, up to the present
Domestic countryside low-voltage electric distribution network installs and uses RCD substantially.Traditional RCD
Major part belongs to the in-situ protection equipment for being locally displayed and operating.Protector of the parts of traditional with communication function is generally pacified
Dress, the stipulations of use substantially belong to the privately owned communication protocol of manufacturer, are built it is difficult to carry out information system on a large scale and promote.
Accelerate with the construction progress of intelligent grid, the demand such as the circuit of overall monitor countryside low-voltage electric distribution network, electric current, state is urgent.
To realize that electric leakage shifts to an earlier date multistage early warning, protector state overall monitor, supply line's fault location is intelligent, realizes active rob
The service of repairing, the power supply reliability of raising Rural Power Distribution Network carry out the research of the equipment.
The content of the invention
Research and develop a kind of protector that can support conventional belt communication function and access the protocol converter of the public transformer terminals of intelligence, will
Long-range main website system is sent on intelligent total security and the public transformer terminals of the intermediate protector access intelligence of intelligence.The technology, which has been filled up, is used for rural power grids
The protector of conventional belt communication function is accessed the blank of the public transformer terminals application of intelligence in power distribution station.
Using the beneficial effect after the present invention：Because traditional protection device has completed installation and operation, the year of rotation is not arrived also
Limit.By it, directly replacing meets for example《RCD communication protocol》(People's Republic of China's Communication power row
Industry standard (draft for deliberation)), avoid intellective protector replacing that equipment can be caused to waste serious etc..Between the public transformer terminals of intelligence and tradition
A stipulations communication converter between protector with communication then can solve the problem that the problem.
Principle：The public transformer terminals of intelligence are adaptive《Stipulations》Requirement, protocol converter received from the public transformer terminals of intelligence
Related command after, the privately owned communication protocols of adaptive multiple manufacturer's protectors can be converted into.
Upgrading project is monitored on-line for power network intelligent electricity leakage protector and researches and develops successful newest auxiliary products.At the scene
When transforming attaching, without repeating to change the earth leakage protective device with communication function originally, only need to by the protocol converter and protector,
Distribution transformer terminals equipment is attached, you can realizes functional, quick and easy for installation, the time saving province of combined network communication online upgrading
Power, and the investment of huge replacing protector equipment can be saved.The same protocol converter is also for conventional belt communication function
Connection between intermediate protector and trunk module.
A kind of protocol converter, for the total protector of intelligence or the intermediate protector of intelligence, it includes：
Low pressure conversion electric power, it is the D/C voltage for being available for this protocol converter to work by power network AC voltage conversions；
Microcontroller, D/C voltage is obtained, for producing the forwarding database of first data link layer；
The up channel and down channel of the microcontroller are connected respectively, collect intelligent total security automatically by down channel
The parameter of device or the intermediate protector of intelligence is protected, the public transformer terminals of intelligence are connected by up channel；
Data storage, D/C voltage is obtained, for storing the forwarding database of this first data link layer, and stipulations turn
Change database；Wherein
When the total protector of intelligence or the intermediate protector of intelligence are moved in the second network area from a first network region,
The microcontroller detects the former IP address in second data link layer to determine in the total protector of this intelligence or intelligence
Whether level protector is firmly fixed, wherein second data link layer belongs in the second network area, the stipulations conversion
Device is arranged in second data link layer, and the repeater is arranged in first data link layer；Work as microcontroller
When uncertain total protector of this intelligence or intelligent intermediate protector are firmly fixed, the microcontroller regenerates the first data
The forwarding database of link layer is to include the former MAC Address of this total protector of intelligence or the intermediate protector of intelligence；Work as microcontroller
When device determines that the total protector of this intelligence or the intermediate protector of intelligence are firmly fixed, it is controlled to second according to its former MAC Address
The data transfer of the forwarding database of network area.
In one embodiment, the total protector of intelligence or the intermediate protector of intelligence are carried out from first by the down channel
Network area is moved to the data transfer of the forwarding database of the second network area.
In one embodiment, the forwarding database is further back to the first net comprising expression from the second network area
The former data in network region.
In one embodiment, the stipulations forwarding database includes the identifier of association former IP address and former MAC Address,
When it is determined that the total protector of intelligence or the intermediate protector of intelligence are from first network zone-transfer to the second network area, the micro-control
Device processed obtains former IP address, and former IP address is coupled into this identifier to produce new forwarding database；In uncertain intelligent total security
When protecting device or the intermediate protector of intelligence from first network zone-transfer to the second network area, former MAC Address is coupled into this mark
Accord with to produce new forwarding database.
In one embodiment, microcontroller obtains the former IP address to determine the total protector of this intelligence or intelligence middle rank
Protector is received into network data, and this enters network data for one of unicast signal, multicast signal or broadcast singal.
In one embodiment, the up channel uses RS485 communication modes, and down channel uses PLC cable communications
Mode.
Low-voltage network leakage protection system, including：First data link layer, the second data link layer and multiple carrier networks
Network, wherein setting described protocol converter in second data link layer, set in first data link layer
Repeater and the public transformer terminals of the intelligence being attached thereto, are provided with multiple carrier networks in the total protector of multiple intelligence or intelligence
Level protector.
Intellective protector stipulations automatic switching method for foregoing low-voltage network leakage protection system, it is characterised in that
Including：
1) the intelligent total security from first network region in the second network area is collected by the down channel of microcontroller
The former IP address of device or the intermediate protector of intelligence is protected,
2) when determining that the total protector of this intelligence or the intermediate protector of intelligence are fixedly mounted, former IP address is coupled into a stipulations
Identifier in conversion database；
3) when not knowing the total protector of this intelligence or the intermediate protector of intelligence is firmly fixed：
The microcontroller regenerates the forwarding database of the first data link layer with comprising this total protector of intelligence
Or the former MAC Address of the intermediate protector of intelligence, and former MAC Address is coupled into this identifier；
By microcontroller by the original in the total protector of intelligence or the intermediate protector of intelligence in first network region
Data are temporarily stored into forwarding database or are back to first network region；
4) re-start and once collect to determine that the total protector of these intelligence or the intermediate protector of intelligence are firmly fixed, root
It is controlled to be shifted to the data of the forwarding database of the second network area according to its former MAC Address.
Stipulations forwarding database includes the identifier of association former IP address and former MAC Address, wherein：
When it is determined that the total protector of intelligence or the intermediate protector of intelligence are from first network zone-transfer to the second network area,
The microcontroller obtains former IP address, and former IP address is coupled into this identifier to produce new forwarding database；
In the total protector of uncertain intelligence or the intermediate protector of intelligence from first network zone-transfer to the second network area
When, former MAC Address is coupled into this identifier to produce new forwarding database.
Microcontroller obtain the former IP address with determine the total protector of this intelligence or the intermediate protector of intelligence receive into
Network data, this enters network data for one of unicast signal, multicast signal or broadcast singal.
Embodiment
The traditional protector with communication function is carried out data transmission to relaying by RS-485 connecting line protocol converters
Module or the public transformer terminals of intelligence realize data interaction, will the split type intelligence of intelligence finally by the public transformer terminals GPRS communication ports of intelligence
Can intermediate protector teletransmission to monitoring system.
Low-voltage power distribution station area scene is pacified by trunk module and the public transformer terminals of intelligence by RS-485 order wires with traditional
Shipment row the protector with communication function be attached, protocol converter can automatic identification and gather protector relevant information and
Sampled data, the public transformer terminals of intelligence and trunk module become eventually after collecting protector relevant information data automatically by intelligence is public
Electric power GPRS communication ports are held by data remote to monitoring system, so that traditional protector enters in protector monitoring system
Row file data management.
Embodiment 1：Protocol converter, it is arranged between a repeater and the total protector of intelligence, or is arranged at one
Between repeater and the intermediate protector of intelligence, the protocol converter specifically includes：
Low pressure conversion electric power, it is the D/C voltage for being available for this protocol converter to work by power network AC voltage conversions；
Microcontroller (dsp chip), D/C voltage is obtained, for producing the forwarding database of first data link layer；
The up channel and down channel of the microcontroller are connected respectively, collect intelligent total security automatically by down channel
The parameter of device or the intermediate protector of intelligence is protected, the public transformer terminals of intelligence are connected by up channel；
Data storage, D/C voltage is obtained, the forwarding database and stipulations for storing this first data link layer turn
Change database；
When the total protector of intelligence or the intermediate protector of intelligence are moved in the second network area from a first network region,
The microcontroller detects the former IP address in second data link layer to determine in the total protector of this intelligence or intelligence
Whether level protector is firmly fixed, wherein second data link layer belongs in the second network area, the stipulations conversion
Device is arranged in second data link layer, and the repeater is arranged in first data link layer；Work as microcontroller
When uncertain total protector of this intelligence or intelligent intermediate protector are firmly fixed, the microcontroller regenerates the first data
The forwarding database of link layer is to include the former MAC Address of this total protector of intelligence or the intermediate protector of intelligence；Work as microcontroller
When device determines that the total protector of this intelligence or the intermediate protector of intelligence are firmly fixed, it is controlled to second according to its former MAC Address
The data transfer of the forwarding database of network area.
In one embodiment, the total protector of intelligence or the intermediate protector of intelligence are carried out from first by the down channel
Network area is moved to the data transfer of the forwarding database of the second network area.
In one embodiment, the forwarding database is further back to the first net comprising expression from the second network area
The former data in network region.
In one embodiment, the stipulations forwarding database includes the identifier of association former IP address and former MAC Address,
When it is determined that the total protector of intelligence or the intermediate protector of intelligence are from first network zone-transfer to the second network area, the micro-control
Device processed obtains former IP address, and former IP address is coupled into this identifier to produce new forwarding database；In uncertain intelligent total security
When protecting device or the intermediate protector of intelligence from first network zone-transfer to the second network area, former MAC Address is coupled into this mark
Accord with to produce new forwarding database.
In one embodiment, microcontroller obtains the former IP address to determine the total protector of this intelligence or intelligence middle rank
Protector is received into network data, and this enters network data for one of unicast signal, multicast signal or broadcast singal.
In one embodiment, the up channel uses RS485 communication modes, and down channel uses PLC cable communications
Mode.
Embodiment 2：Low-voltage network leakage protection system, including：First data link layer, the second data link layer and more
Individual carrier network, wherein setting protocol converter in second data link layer, set in first data link layer
The public transformer terminals of intelligence put repeater and be attached thereto, are provided with the total protector of multiple intelligence or intelligence in multiple carrier networks
Intermediate protector.
Embodiment 3：For the intellective protector stipulations automatic switching method of foregoing low-voltage network leakage protection system, its
It is characterised by including：
1) the intelligent total security from first network region in the second network area is collected by the down channel of microcontroller
The former IP address of device or the intermediate protector of intelligence is protected,
2) when determining that the total protector of this intelligence or the intermediate protector of intelligence are fixedly mounted, former IP address is coupled into a stipulations
Identifier in conversion database；
3) when not knowing the total protector of this intelligence or the intermediate protector of intelligence is firmly fixed：
The microcontroller regenerates the forwarding database of the first data link layer with comprising this total protector of intelligence
Or the former MAC Address of the intermediate protector of intelligence, and former MAC Address is coupled into this identifier；
By microcontroller by the original in the total protector of intelligence or the intermediate protector of intelligence in first network region
Data are temporarily stored into forwarding database or are back to first network region；
4) re-start and once collect to determine that the total protector of these intelligence or the intermediate protector of intelligence are firmly fixed, root
It is controlled to be shifted to the data of the forwarding database of the second network area according to its former MAC Address.
Stipulations forwarding database includes the identifier of association former IP address and former MAC Address, wherein：
When it is determined that the total protector of intelligence or the intermediate protector of intelligence are from first network zone-transfer to the second network area,
The microcontroller obtains former IP address, and former IP address is coupled into this identifier to produce new forwarding database；
In the total protector of uncertain intelligence or the intermediate protector of intelligence from first network zone-transfer to the second network area
When, former MAC Address is coupled into this identifier to produce new forwarding database.
Microcontroller obtain the former IP address with determine the total protector of this intelligence or the intermediate protector of intelligence receive into
Network data, this enters network data for one of unicast signal, multicast signal or broadcast singal.
Claims (10)
1. a kind of protocol converter, being arranged between a repeater and the total protector of intelligence, or it is arranged at a repeater
Between the intermediate protector of intelligence, it is characterised in that the protocol converter specifically includes：
Low pressure conversion electric power, it is the D/C voltage for being available for this protocol converter to work by power network AC voltage conversions；
Microcontroller, D/C voltage is obtained, for producing the forwarding database of first data link layer；
The up channel and down channel of the microcontroller are connected respectively, collect the total protector of intelligence automatically by down channel
Or the parameter of the intermediate protector of intelligence, the public transformer terminals of intelligence are connected by up channel；
Data storage, D/C voltage is obtained, for storing the forwarding database and stipulations conversion number of this first data link layer
According to storehouse；
It is described when the total protector of intelligence or the intermediate protector of intelligence are moved in the second network area from a first network region
Microcontroller detects the former IP address in second data link layer to determine that the total protector of this intelligence or intelligence middle rank are protected
Whether shield device is firmly fixed, wherein second data link layer belongs in the second network area, the protocol converter is set
It is placed in second data link layer, the repeater is arranged in first data link layer；When microcontroller is not true
When the fixed total protector of this intelligence or intelligent intermediate protector are firmly fixed, the microcontroller regenerates the first data link
The forwarding database of layer is to include the former MAC Address of this total protector of intelligence or the intermediate protector of intelligence；When microcontroller is true
When the fixed total protector of this intelligence or intelligent intermediate protector are firmly fixed, it is controlled to the second network according to its former MAC Address
The data transfer of the forwarding database in region.
2. protocol converter according to claim 1, it is characterised in that：The total protection of intelligence is carried out by the down channel
Device or the intermediate protector of intelligence are moved to the data transfer of the forwarding database of the second network area from first network region.
3. protocol converter according to claim 1, it is characterised in that：The forwarding database further comprising represent from
Second network area is back to the former data in first network region.
4. protocol converter according to claim 1, it is characterised in that：The stipulations forwarding database, which includes, associates former IP
Address and the identifier of former MAC Address, it is determined that the total protector of intelligence or the intermediate protector of intelligence from first network zone-transfer
During to the second network area, the microcontroller obtains former IP address, and former IP address is coupled into this identifier to produce new turn
Send out database；In the total protector of uncertain intelligence or the intermediate protector of intelligence from first network zone-transfer to the second network area
When, former MAC Address is coupled into this identifier to produce new forwarding database.
5. protocol converter according to claim 1, it is characterised in that：Microcontroller obtains the former IP address to determine
This total protector of intelligence or the intermediate protector of intelligence are received into network data, this enter network data for unicast signal, multicast signal or
One of broadcast singal.
6. protocol converter according to claim 1, it is characterised in that：The up channel uses RS485 communication modes,
Down channel uses PLC cable communication modes.
7. low-voltage network leakage protection system, it is characterised in that including：First data link layer, the second data link layer and more
Individual carrier network, wherein the protocol converter described in claim 1 is set in second data link layer, described first
Repeater and the intelligence public transformer terminals being attached thereto are set in data link layer, multiple intelligence are provided with multiple carrier networks
Total protector or the intermediate protector of intelligence.
8. it is used for the intellective protector stipulations automatic switching method of the low-voltage network leakage protection system described in claim 7,
It is characterized in that including：
1) the total protector of intelligence from first network region in the second network area is collected by the down channel of microcontroller
Or the former IP address of the intermediate protector of intelligence,
2) when determining that the total protector of this intelligence or the intermediate protector of intelligence are fixedly mounted, former IP address is coupled into a stipulations conversion
Identifier in database；
3) when not knowing the total protector of this intelligence or the intermediate protector of intelligence is firmly fixed：
The microcontroller regenerates the forwarding database of the first data link layer with comprising the total protector of this intelligence or intelligence
The former MAC Address of the intermediate protector of energy, and former MAC Address is coupled into this identifier；
By microcontroller by the former data in the total protector of intelligence or the intermediate protector of intelligence in first network region
It is temporarily stored into forwarding database or is back to first network region；
4) re-start and once collect to determine that the total protector of these intelligence or the intermediate protector of intelligence are firmly fixed, according to it
Former MAC Address controls it to be shifted to the data of the forwarding database of the second network area.
9. intellective protector stipulations automatic switching method according to claim 8, it is characterised in that stipulations forwarding database
Identifier comprising association former IP address and former MAC Address, wherein：
It is described when it is determined that the total protector of intelligence or the intermediate protector of intelligence are from first network zone-transfer to the second network area
Microcontroller obtains former IP address, and former IP address is coupled into this identifier to produce new forwarding database；
, will when the total protector of uncertain intelligence or the intermediate protector of intelligence are from first network zone-transfer to the second network area
Former MAC Address couples this identifier to produce new forwarding database.
10. intellective protector stipulations automatic switching method according to claim 8, it is characterised in that：Microcontroller obtains
For the former IP address to determine that the total protector of this intelligence or the intermediate protector of intelligence are received into network data, this enters network data for list
Broadcast one of signal, multicast signal or broadcast singal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510063943.3A CN104701824B (en) | 2015-02-06 | 2015-02-06 | A kind of protocol converter, low-voltage network leakage protection system and its intellective protector stipulations automatic switching method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510063943.3A CN104701824B (en) | 2015-02-06 | 2015-02-06 | A kind of protocol converter, low-voltage network leakage protection system and its intellective protector stipulations automatic switching method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104701824A CN104701824A (en) | 2015-06-10 |
| CN104701824B true CN104701824B (en) | 2018-03-09 |
Family
ID=53348694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510063943.3A Active CN104701824B (en) | 2015-02-06 | 2015-02-06 | A kind of protocol converter, low-voltage network leakage protection system and its intellective protector stipulations automatic switching method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104701824B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105959305B (en) * | 2016-07-01 | 2019-04-19 | 国网山东省电力公司博兴县供电公司 | A kind of substation's communication protocol converting system |
| CN113657505B (en) * | 2021-08-18 | 2024-05-10 | 国网四川省电力公司自贡供电公司 | Data processing system and method of power monitoring platform |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202309764U (en) * | 2011-09-22 | 2012-07-04 | 南京航天银山电气有限公司 | Resolving device of integrated Ethernet chip (IEC) 61850 communication protocol |
| CN104158296A (en) * | 2014-08-30 | 2014-11-19 | 国家电网公司 | Remote residual current protection device managing system based on network technology |
| CN104253486A (en) * | 2014-09-30 | 2014-12-31 | 杭州天目电力科技有限公司 | Communication adapter |
-
2015
- 2015-02-06 CN CN201510063943.3A patent/CN104701824B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202309764U (en) * | 2011-09-22 | 2012-07-04 | 南京航天银山电气有限公司 | Resolving device of integrated Ethernet chip (IEC) 61850 communication protocol |
| CN104158296A (en) * | 2014-08-30 | 2014-11-19 | 国家电网公司 | Remote residual current protection device managing system based on network technology |
| CN104253486A (en) * | 2014-09-30 | 2014-12-31 | 杭州天目电力科技有限公司 | Communication adapter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104701824A (en) | 2015-06-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201570902U (en) | System for remotely monitoring and managing humidity of terminal box of transformer substation | |
| CN102227090A (en) | Intelligent FA (feeder automation) system of 10kV-carrier communication | |
| CN104022571B (en) | A kind of power load monitoring system based on autonomous wireless networking and method | |
| CN206178051U (en) | Defeated power transformation device state integrated monitoring device based on loRa technique | |
| CN105048630A (en) | Intelligent scheduling control system and method based on data automatic analysis system | |
| CN104319886A (en) | Power grid wide area protection and control system | |
| CN102290863A (en) | Distributed-feeder-automation-system-based remote monitoring terminal and implementation method | |
| CN104701824B (en) | A kind of protocol converter, low-voltage network leakage protection system and its intellective protector stipulations automatic switching method | |
| CN103278733B (en) | A kind of cable grounding remote monitoring method and Long-Range Surveillance System | |
| CN103560583A (en) | Micro-unit monitor based on DSP | |
| CN203312920U (en) | Intelligent integrated system of PT cabinet | |
| CN103117598A (en) | Constant value remote setting maintenance-free system for transformer substation | |
| CN203069726U (en) | Rural power grid power distribution line fault location and isolation system | |
| CN211428993U (en) | Remote switching device and system for disconnecting link power supply of transformer substation | |
| CN102185372A (en) | Method and device for generating backup automatic switchover control model based on EMS (energy management system) | |
| CN204964674U (en) | Insulating monitoring signal processing system of contact net | |
| CN103389421A (en) | Island detection method and device based on GOOSE communication | |
| CN106972631A (en) | Integrated vacuum circuit breaker | |
| CN102937690A (en) | Lightning stroke failure disconnection positioning method based on information interaction | |
| CN210404847U (en) | Power distribution network power consumption information acquisition and power distribution structure topology recognition system | |
| CN101499682A (en) | Improved implementation method for power distribution automation | |
| CN209218138U (en) | It is a kind of wirelessly to match electricity automation information acquisition system | |
| CN204376410U (en) | A kind of overload control apparatus | |
| CN106199314A (en) | Cable fault on-line monitoring system | |
| CN204215440U (en) | Line loss statistical system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |