CN207281509U - A kind of SCM Based ring main unit passive protection measure and control device - Google Patents
A kind of SCM Based ring main unit passive protection measure and control device Download PDFInfo
- Publication number
- CN207281509U CN207281509U CN201720773906.6U CN201720773906U CN207281509U CN 207281509 U CN207281509 U CN 207281509U CN 201720773906 U CN201720773906 U CN 201720773906U CN 207281509 U CN207281509 U CN 207281509U
- Authority
- CN
- China
- Prior art keywords
- module
- acquisition module
- singlechip controller
- human
- main unit
- 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
- 238000004891 communication Methods 0.000 claims abstract description 22
- 230000003993 interaction Effects 0.000 claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000004973 liquid crystal related substance Substances 0.000 claims 1
- 230000001681 protective effect Effects 0.000 abstract description 6
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model discloses a kind of SCM Based ring main unit passive protection measure and control device, including singlechip controller, on-off model acquisition module, current acquisition module, CT electricity-fetching modules, human-computer interaction module, communication module and output control module；The singlechip controller is mutually electrically connected with on-off model acquisition module, current acquisition module, human-computer interaction module, communication module, output control module respectively；The CT electricity-fetching modules are mutually electrically connected with singlechip controller, on-off model acquisition module, current acquisition module, human-computer interaction module, communication module and output control module respectively；The SCM Based ring main unit passive protection measure and control device of the utility model is powered by CT electricity-fetching modules for whole protective device; independent power supply is provided without exterior; it is achieved thereby that the real-time online protection monitoring of ring main unit; possess telecommunications functions, and can realize the control to smart machine in ring main unit.
Description
Technical field
Ring main unit technical field is the utility model is related to, a kind of particularly SCM Based ring main unit passive protection observing and controlling
Device.
Background technology
In ring main unit open-air atmosphere all installed outdoors domestic at present, ring main unit bears this grade of customer charge in itself
Responsibility, while the importance of series connection mains supply line looped network is also responsible for, the power supply reliability of ring main unit in itself is improved, is whole
The most important thing of subscribers' line power supply.Ring main unit is supply node important in urban power distribution network, how to realize ring main unit
Safe operation, protects ring main unit internal unit, realizes on-line monitoring, reduce the maintenance workload and power off time of Field Force,
Whole network is run very crucial.The advantages of ring main unit is small, low cost, and installation is convenient, at present domestic ring
The major control mode of net cabinet power supply has on-load switch, breaker etc., once line failure, mainly by on-load switch or
Person's breaker cuts off failure in itself, seriously affects the security of electric power system.
And the basic reason that ring main unit can not install protective relaying device additional at present is that do not have in cabinet without dedicated power-supply system
PT can not be provided for the dedicated power supply of secondary or straight-flow system, microcomputer protecting device no current source, so as to the phase of powering
Between equipment state and load condition can not timely obtain so as to being monitored.
The content of the invention
The purpose of this utility model is to provide a kind of simple in structure, easy to use and good reliability based on microcontroller
Ring main unit passive protection measure and control device.
The technical solution for realizing the utility model aim is：
A kind of SCM Based ring main unit passive protection measure and control device, it is characterised in that including singlechip controller, open
Pass amount signal acquisition module, current acquisition module, CT electricity-fetching modules, human-computer interaction module, communication module and output control module；
The singlechip controller respectively with on-off model acquisition module, current acquisition module, human-computer interaction module, communication module,
Output control module is mutually electrically connected；The CT electricity-fetching modules respectively with singlechip controller, on-off model acquisition module, electricity
Stream acquisition module, human-computer interaction module, communication module are mutually electrically connected with output control module, and the CT electricity-fetching modules are monolithic
Machine controller and other modules provide power supply；The letter that the on-off model acquisition module and current acquisition module will be gathered
Singlechip controller number is transmitted to, singlechip controller and the mutual transmission signal of human-computer interaction module, singlechip controller pass through
Communication module is communicated with control centre, and singlechip controller is adopted according to on-off model acquisition module and current acquisition module
The output of the signal control output control module of collection.
Preferably, the human-computer interaction module includes LCD MODULE and key-press module, LCD MODULE and button
Module is connected with singlechip controller.
Preferably, the singlechip controller uses microcontroller STM32 family chips.
Preferably, the communication module uses RS485 communication modules.
The utility model compared with prior art, its remarkable advantage：
（1）The SCM Based ring main unit passive protection measure and control device of the utility model is protected by CT electricity-fetching modules to be whole
Protection unit is powered, and independent power supply is provided without outside, it is achieved thereby that the real-time online protection monitoring of ring main unit.
（2）The SCM Based ring main unit passive protection measure and control device of the utility model possesses real-time locality and checks operation shape
State, setting definite value parameter, possess telecommunications functions, and can realize the control to smart machine in ring main unit, and each is dynamic
The process of work can consult, in that context it may be convenient to be checked on the screen of device.
The utility model is described in further detail below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is the structure diagram of the SCM Based ring main unit passive protection measure and control device of the utility model.
Embodiment
Embodiment 1：
As shown in Figure 1, a kind of SCM Based ring main unit passive protection measure and control device, including singlechip controller, open
Pass amount signal acquisition module, current acquisition module, CT electricity-fetching modules, human-computer interaction module, communication module and output control module；
The singlechip controller respectively with on-off model acquisition module, current acquisition module, human-computer interaction module, communication module,
Output control module is mutually electrically connected；The CT electricity-fetching modules respectively with singlechip controller, on-off model acquisition module, electricity
Stream acquisition module, human-computer interaction module, communication module are mutually electrically connected with output control module, and the CT electricity-fetching modules are monolithic
Machine controller and other modules provide power supply；The letter that the on-off model acquisition module and current acquisition module will be gathered
Singlechip controller number is transmitted to, singlechip controller and the mutual transmission signal of human-computer interaction module, singlechip controller pass through
Communication module is communicated with control centre, and singlechip controller is adopted according to on-off model acquisition module and current acquisition module
The output of the signal control output control module of collection.
The singlechip controller is responsible for the data task processing of whole device, and on-off model acquisition module is gathered
Data carry out data analysis after, be logged into the real-time sampling area of device, carry out real-time algorithm calculating, in real time and setting
Parameter carries out out-of-limit calculating, after protective device is out-of-limit, is acted according to corresponding relay protective scheme outlet in the open circuit of this unit
Device or combination switch, and state point change and sampled data will be saved in relevant data storage areas in real time at the same time,
Communication module and human-computer interaction module carry out data interaction, convenient to transport inspection personnel so as to fulfill the access of transferring of action data
The accident analysis of carry out system；The singlechip controller uses the ARM chips of STMF103xC series, which uses
The Cortex-M3 that ARM companies are 32 is core, and highest dominant frequency is 72MHz, and inside carries hardware multiplier and divider, chip
Inside carries the ADC module of 16 independent passages, conversion regime Approach by inchmeal, and the most fast sample frequency of single channel is 1MHz, very
It is adapted to custom power automation equipment and industrial control equipment, chip also has the abundant Uart serial port modules of much 5, with
And the FSMC buses of exterior extension can be carried out.
The on-off model acquisition module is used to be acquired each state of breaker and ring main unit body, real
Now each state is monitored, and combines definite value and sets, condition is provided for logic judgment.
The current acquisition module includes the sampling of four current channels, wherein three tunnels gather A, B, C phase current respectively, one
Road is sampled as zero-sequence current；Current acquisition module is converted into micro voltage signal, by fortune by being acquired to current signal
Treatment loop is put, is converted into the micro voltage signal that singlechip controller can receive.
The CT electricity-fetching modules are responsible for providing reliable and stable power supply to whole device, take electric principle using electric energy, add
Overvoltage crowbar, output multi-channel DC power supply, so as to be powered for whole protective device；The CT electricity-fetching modules pass through mutual
Sensor is sampled, and high current signal is converted to the voltage signal of millivolt level, it is achieved thereby that with electric power networks again every
From being also equipped with the characteristics of caloric value is few, small.
The human-computer interaction module includes LCD MODULE and key-press module, LCD MODULE and key-press module with
Singlechip controller is connected, and human-computer interaction module is in real time shown data by LCD MODULE, while can be with
The order such as experiment or the inquiry and setting of operations staff is received by key-press module.
The communication module includes two-way telecommunication circuit, independent mutually between two circuits, is responsible for device and a distant place all the way
, can also be right by producer's debugging software or the communication data of debugging software exchanges, and can be linked into real-time Communication for Power network
History file above intelligent apparatus is inquired about and parameter setting；In addition communicate all the way and be responsible for this unit smart machine
（If any intelligence instrument or temperature control）Carry out information exchange or, so as to realize the reading of third party device data.
In conclusion the SCM Based ring main unit passive protection measure and control device of the utility model is by CT electricity-fetching modules
Whole protective device is powered, and independent power supply is provided without outside, it is achieved thereby that the real-time online protection monitoring of ring main unit；
The SCM Based ring main unit passive protection measure and control device of the utility model possesses real-time locality and checks operating status, setting definite value
Parameter, possesses telecommunications functions, and can realize the control to smart machine in ring main unit, and each action process can be looked into
Read, in that context it may be convenient to checked on the screen of device.
Claims (1)
1. a kind of SCM Based ring main unit passive protection measure and control device, it is characterised in that including singlechip controller, switch
Measure signal acquisition module, current acquisition module, CT electricity-fetching modules, human-computer interaction module, communication module and output control module；Institute
State singlechip controller respectively with on-off model acquisition module, current acquisition module, human-computer interaction module, communication module, defeated
Go out control module to be mutually electrically connected；The CT electricity-fetching modules respectively with singlechip controller, on-off model acquisition module, electric current
Acquisition module, human-computer interaction module, communication module and output control module are mutually electrically connected, and the CT electricity-fetching modules are microcontroller
Controller and other modules provide power supply；The signal that the on-off model acquisition module and current acquisition module will be gathered
Singlechip controller, singlechip controller and the mutual transmission signal of human-computer interaction module are transmitted to, singlechip controller passes through logical
Letter module is communicated with control centre, and singlechip controller is gathered according to on-off model acquisition module and current acquisition module
Signal control output control module output；The human-computer interaction module includes LCD MODULE and key-press module, liquid crystal
Display module and key-press module are connected with singlechip controller；The singlechip controller is using microcontroller STM32 series
Chip；The communication module uses RS485 communication modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720773906.6U CN207281509U (en) | 2017-06-29 | 2017-06-29 | A kind of SCM Based ring main unit passive protection measure and control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720773906.6U CN207281509U (en) | 2017-06-29 | 2017-06-29 | A kind of SCM Based ring main unit passive protection measure and control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207281509U true CN207281509U (en) | 2018-04-27 |
Family
ID=61992882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720773906.6U Active CN207281509U (en) | 2017-06-29 | 2017-06-29 | A kind of SCM Based ring main unit passive protection measure and control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207281509U (en) |
-
2017
- 2017-06-29 CN CN201720773906.6U patent/CN207281509U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100533081C (en) | Switch cabinet contact temperature monitoring and alarming system | |
| CN106329721B (en) | Integral intelligent electric energy meter and electric-power metering and Control protection system | |
| CN202351347U (en) | Monitoring terminal device for distribution transformer | |
| CN206628714U (en) | Low voltage switch equipment | |
| CN204758748U (en) | Cubical switchboard intelligent integrated monitoring devices | |
| CN207832923U (en) | A kind of distributing monitoring system | |
| CN101237156B (en) | Realization method for wall-hang energy-saving high-frequency switch DC power system | |
| CN201051018Y (en) | Switch case contact temperature monitoring and alarming system | |
| CN204497848U (en) | A kind of based on man-machine interface LV Distribution Monitoring System | |
| CN104201986A (en) | Photovoltaic power generation and supervisory control integrated device | |
| CN205544617U (en) | Distribution transformer's control, protection and management device | |
| CN205829295U (en) | Integral intelligent electric energy meter and electric-power metering and Control protection system | |
| CN108964259A (en) | A kind of power grid intelligence control system | |
| CN202351676U (en) | Energy consumption metering and production safety monitoring system | |
| CN204167883U (en) | A kind of 10kV line short fault microcomputer protective relay device | |
| CN206225828U (en) | A kind of distribution outlet of low-voltage comprehensive distribution box with plug-in type capacitance compensation and metering cabinet | |
| CN210840077U (en) | Intelligent monitoring short message gateway device | |
| CN205283154U (en) | Protection control of distributing type photovoltaic power generation and communication device | |
| CN104142648A (en) | Management and control terminal of urban rail traffic low-voltage power distribution system | |
| CN218888153U (en) | Photovoltaic grid-connected control and isolation device | |
| CN207281509U (en) | A kind of SCM Based ring main unit passive protection measure and control device | |
| CN203588057U (en) | Wind power monitoring device | |
| CN211321024U (en) | Embedded distribution transformer monitoring and metering device and distribution room terminal | |
| CN207053251U (en) | A kind of grid entry point supervising device of family expenses photovoltaic generating system | |
| CN107508380A (en) | A kind of electric power power transformation big data system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |