CN107104419A - A kind of interim protection device of transmission line of electricity microcomputer - Google Patents
A kind of interim protection device of transmission line of electricity microcomputer Download PDFInfo
- Publication number
- CN107104419A CN107104419A CN201710366510.4A CN201710366510A CN107104419A CN 107104419 A CN107104419 A CN 107104419A CN 201710366510 A CN201710366510 A CN 201710366510A CN 107104419 A CN107104419 A CN 107104419A
- Authority
- CN
- China
- Prior art keywords
- casing
- plug
- transmission line
- protection device
- microcomputer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
Abstract
Proposed by the present invention is a kind of interim protection device of transmission line of electricity microcomputer.The interim protection device of transmission line of electricity microcomputer is provided with casing, and handle is housed on casing, sign board is posted in the panel of casing, and provided with display screen and button, backboard is provided with box back surface, plug terminal is provided with backboard.In casing built with secondary circuit.The drawbacks of can avoiding electromagnetic type comprehensively using the present invention, compact, second loop return wiring is simple, and the precision that microcomputer is protected temporarily is very high, reflects rapid to failure, it is widely used in addition.Suitably used as the interim protection device of transmission line of electricity.
Description
Technical field
Proposed by the present invention is that electro-mechanical arts are used for a kind of interim protection device of transmission line of electricity microcomputer.
Background technology
Because many 220kV transmission lines of electricity and 66kV transmission lines of electricity need technological transformation in transformer station, need to install additional before putting into operation
Interim protection, for the phase measurement to electric current, voltage, it is ensured that phase it is correct, will not occur misoperation.Previously used faces
When protection be that overcurrent relay and auxiliary reclay etc. are grouped together application, volume is excessive, wiring complexity, and due to electromagnetism
The characteristic of property relay, precision is not high, it is difficult to ensure accuracy.
The content of the invention
In order to be protected to circuit, the present invention proposes a kind of interim protection device of transmission line of electricity microcomputer.The device leads to
Computer line design is crossed, the technical problem of circuit protection is solved.
The present invention solves the scheme that is used of technical problem：
The interim protection device of transmission line of electricity microcomputer is provided with casing, and handle is housed on casing, sign board is posted in the panel of casing,
Provided with display screen and button, backboard is provided with box back surface, plug terminal is provided with backboard.
In casing built with secondary circuit.
Secondary circuit include power switch, inductance coil, exchange plug-in unit, CPU card, power insert and logica board,
Wherein, it is connected by the power supply of power switch by inductance coil with exchange plug-in unit, is provided with and is provided with exchange plug-in unit
Electric current IA, IB, IC, bottom are provided with IA ', IB ', IC ', and exchange plug-in unit is connected with CPU card；
In CPU card provided with intake, pulse PQ, pair when and communication, signal reset and it is standby open into 24V export be connected,
P, Q, COM and 24V output connection, COM are connected with the output of 24V branch roads, and SYNA+ is connected with pulse output, SYNA- and 24V branch roads
Connection, RS485A+ and RS485A- are communicated by induction coil；
P+ and P- on power insert are connected with+KM and-KM respectively, and power insert is connected with logica board, in logica board
Provided with F1 common segments, F2 tripping operations, standby, protection act and signal alarm；
Provided with tripping operation positive supply and tripping operation negative supply on the outside of logica board, protection act and signal alarm are connected with indicator lamp.
CPU card and logica board signal communication.
Good effect, a variety of drawbacks of electromagnetic type, compact, secondary returning can be avoided comprehensively by being protected temporarily using microcomputer
Road wiring is simple, and the precision that microcomputer is protected temporarily is very high, reflects rapid to failure, it is widely used in addition, not only can be with
As the interim protection of 220kV circuits and 66kV circuits, be also used as the replacement protection of below 10kV voltage class, such as certain
The 10kV route protections of transformer station break down, it is impossible to put into operation, now can protect portable microcomputer temporarily as replacing
Change, it is ensured that the normal operation of this circuit, the operation safety of transformer station will not be injured.In addition, this project protects microcomputer temporarily
Portable casing is installed additional, and the secondary circuit inside the backboard wiring of microcomputer protecting device and the casing installed additional progress has been connected
Connect, also develop and produce special secondary circuit test wire, the mode of connection that can meet all terminal blocks at this stage will
Ask.
Brief description of the drawings
Fig. 1 is casing figure of the present invention；
Fig. 2 is back view of the present invention；
Fig. 3 is circuit layout of the present invention.
In figure, 1. casings, 2. handles, 3. sign boards, 4. display screens, 5. buttons, 6. backboards, 7. plug terminals, 8. power supplys
Switch, 9. inductance coils, 10. exchange plug-in units, 11.CPU plug-in units, 12. power inserts, 13. logica boards.
Embodiment
The interim protection device of transmission line of electricity microcomputer is provided with casing 1, and handle 2 is housed on casing, posted in the panel of casing
Sign board 3, provided with display screen 4 and button 5, backboard 6 is provided with box back surface, plug terminal 7 is provided with backboard.
In casing built with secondary circuit.
Secondary circuit include power switch, inductance coil, exchange plug-in unit, CPU card, power insert and logica board,
Wherein, it is connected by the power supply of power switch 8 by inductance coil 9 with exchange plug-in unit 10, is provided with and sets in exchange plug-in unit
Electric current IA, IB, IC are equipped with, bottom is provided with IA ', IB ', IC ', and exchange plug-in unit is connected with CPU card 11；
In CPU card provided with intake, pulse PQ, pair when and communication, signal reset and it is standby open into 24V export be connected,
P, Q, COM and 24V output connection, COM are connected with the output of 24V branch roads, and SYNA+ is connected with pulse output, SYNA- and 24V branch roads
Connection, RS485A+ and RS485A- are communicated by induction coil；
P+ and P- on power insert 12 are connected with+KM and-KM respectively, and power insert is connected with logica board, in logica board
It is interior to be alerted provided with F1 common segments, F2 tripping operations, standby, protection act and signal；
In the outside of logica board 13 instruction is connected with provided with tripping operation positive supply and tripping operation negative supply, protection act and signal alarm
Lamp.
CPU card and logica board signal communication.
Interim protection is used as using microcomputer protecting device, it is only necessary to simple secondary circuit is carried out to microcomputer protecting device and connect
Line is with regard to that can meet it as the in need and functional requirement protected temporarily.In addition, having installed portable casing additional, and microcomputer is protected
The backboard wiring of protection unit is connected with the secondary circuit inside the casing progress installed additional, is also developed and is produced special secondary returning
Road test wire, can meet the mode of connection of all terminal blocks at this stage, while more safe and reliable.
By obtaining practical application among multinomial 220kV circuits manufacturing improvement engineering, and give full play to the role, make
220kV route protections smoothly put into operation after phase test is correct, and the protection temporarily of transmission line of electricity microcomputer, which is fully met, requires
When 10kV route protections break down, protection also quickly can be installed and used transmission line of electricity microcomputer temporarily, make circuit
Recovery power transmission that can be quickly, the interim protection in being rushed to repair as accident emergency shortens the time of power failure, improves power supply
Reliability.
Casing portable microcomputer protection device terminal connection table
Claims (1)
1. a kind of interim protection device of transmission line of electricity microcomputer, it is characterised in that：
The interim protection device of transmission line of electricity microcomputer is provided with casing（1）, handle is housed on casing（2）, posted in the panel of casing
Sign board（3）, provided with display screen（4）And button（5）, backboard is provided with box back surface（6）, plug terminal is provided with backboard
（7）；
In casing built with secondary circuit, secondary circuit includes power switch, and inductance coil exchanges plug-in unit, CPU card, power supply
Plug-in unit and logica board；
Wherein, power switch is passed through（8）Power supply pass through inductance coil（9）With exchanging plug-in unit（10）Set in connection, exchange plug-in unit
Have and be provided with electric current IA, IB, IC, bottom is provided with IA ', IB ', IC ', exchange plug-in unit and CPU card（11）Connection；
In CPU card provided with intake, pulse PQ, pair when and communication, signal reset and it is standby open into 24V export be connected,
P, Q, COM and 24V output connection, COM are connected with the output of 24V branch roads, and SYNA+ is connected with pulse output, SYNA- and 24V branch roads
Connection, RS485A+ and RS485A- are communicated by induction coil；
Power insert（12）On P+ and P- be connected respectively with+KM and-KM, power insert is connected with logica board, logic insert
Provided with F1 common segments, F2 tripping operations, standby, protection act and signal alarm in part；
In logica board（13）Outside is connected with instruction provided with tripping operation positive supply and tripping operation negative supply, protection act and signal alarm
Lamp；
CPU card and logica board signal communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710366510.4A CN107104419A (en) | 2017-05-23 | 2017-05-23 | A kind of interim protection device of transmission line of electricity microcomputer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710366510.4A CN107104419A (en) | 2017-05-23 | 2017-05-23 | A kind of interim protection device of transmission line of electricity microcomputer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107104419A true CN107104419A (en) | 2017-08-29 |
Family
ID=59669029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710366510.4A Pending CN107104419A (en) | 2017-05-23 | 2017-05-23 | A kind of interim protection device of transmission line of electricity microcomputer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107104419A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201504084U (en) * | 2009-01-06 | 2010-06-09 | 牡丹江电业局 | Portable digital protection and monitoring device |
| CN104022493A (en) * | 2014-06-16 | 2014-09-03 | 国家电网公司 | Portable temporary protection device for 220KV circuit |
| CN206697924U (en) * | 2017-05-23 | 2017-12-01 | 国网辽宁省电力有限公司葫芦岛供电公司 | The interim protection device of transmission line of electricity microcomputer |
-
2017
- 2017-05-23 CN CN201710366510.4A patent/CN107104419A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201504084U (en) * | 2009-01-06 | 2010-06-09 | 牡丹江电业局 | Portable digital protection and monitoring device |
| CN104022493A (en) * | 2014-06-16 | 2014-09-03 | 国家电网公司 | Portable temporary protection device for 220KV circuit |
| CN206697924U (en) * | 2017-05-23 | 2017-12-01 | 国网辽宁省电力有限公司葫芦岛供电公司 | The interim protection device of transmission line of electricity microcomputer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170829 |