CN203774756U - On-line monitoring protection device for relay protection of high voltage equipment - Google Patents
On-line monitoring protection device for relay protection of high voltage equipment Download PDFInfo
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- CN203774756U CN203774756U CN201320853894.XU CN201320853894U CN203774756U CN 203774756 U CN203774756 U CN 203774756U CN 201320853894 U CN201320853894 U CN 201320853894U CN 203774756 U CN203774756 U CN 203774756U
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- controller module
- line monitoring
- tension apparatus
- voltage
- protection device
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Abstract
The utility model relates to an on-line monitoring protection device for relay protection of high voltage equipment. The on-line monitoring protection device for relay protection of the high voltage equipment includes a voltage transformer, an AD conversion module, keys, a controller module, a display screen module, and a relay output unit. The on-line monitoring protection device adopts relay protection, and when a user needs to change an external wiring method of a relay protection device from a star connection method to a delta connection method, relay protection can be realized by using the same relay protection device, thereby saving resources; and the on-line monitoring protection device has user parameter entering and monitoring display functions, thus equipment monitoring information is more complete, and the user can know the state of the equipment more completely. The on-line monitoring protection device for relay protection of the high voltage equipment is simple in structure and adopts modular design, so that maintenance and use are very rapid, simple and convenient, on-line monitoring of the circuit running condition of the high voltage equipment is performed, occurrence of abnormal conditions is monitored in time and protection is provided for the equipment in time.
Description
Technical field
The utility model belongs to grid power monitoring technical field, relates in particular to a kind of on-line monitoring protective device of high-tension apparatus relaying protection.
Background technology
At present; in the transformer station of network system, be provided with many high voltage electric equipments; the effect of relaying protection is to break down or when unusual service condition when electric power system; in shortest time in the cards and Minimum Area; automatically faulty equipment is excised from system; or send signal and eliminate unusual service condition root by operator on duty, with the impact that alleviates or avoid the damage of equipment and adjoining area is powered.
At present, protective relaying device can adopt two kinds of external wiring patterns that the voltage measurement module of protective relaying device is connected with protected power circuit, one is in voltage measurement module, to have three voltage transformers, be connected with protected power circuit in star-star connection mode, to the A in protected power circuit, B, the three-phase voltage of C three-phase is measured, obtain A, B, the voltage of C three-phase, also having a kind of mode is in voltage measurement module, to only have two voltage transformers, be connected with protected power circuit in delta connection mode, to the A in protected power circuit, B, the three-phase voltage of C three-phase is measured, obtain between A phase and B phase, electrical potential difference between B phase and C phase, the voltage parameter obtaining from voltage transformer up-sampling due to processing unit has different physical meaning, therefore different external wiring patterns must be to there being different relaying protection judgment modes in the processing unit of different protective relaying devices, such as passing through the A in protected power circuit because of the self-produced voltage of zero sequence, B, the voltage of C three-phase calculates, and the voltage transformer that adopts the external triangular mode of connection can only provide between A phase and B phase, electrical potential difference between B phase and C phase, therefore adopt the protective relaying device of the external triangular mode of connection just can not adopt the relaying protection judgment mode based on the self-produced voltage of zero sequence.
In some cases, user need to convert external wiring pattern to delta connection mode from star-star connection mode, if adopting, user comprises three voltage transformers, and the external wiring pattern of these three voltage transformers and protected power circuit was that the protective relaying device of star-star connection mode is simulated the protective relaying device that external wiring pattern is delta connection mode originally, the single-chip microcomputer processing unit of protective relaying device can be transformed into from voltage transformer sampling the voltage parameter of protected power circuit through AD, the relaying protection judgment mode adopting due to processing unit is corresponding to star-star connection mode, therefore the relaying protection judgment mode that the voltage parameter that single-chip microcomputer processing unit samples and protective relaying device adopt can not be compatible, , can not directly adopt this voltage parameter as the reference data that judges whether to need relaying protection, therefore when user need to be when converting external wiring pattern to delta connection mode from star-star connection mode, to realize relaying protection with same protective relaying device, need to reinstall one and there is the protective relaying device that meets the required external wiring pattern of user, so, cause the waste in resource.
Current technology does not also realize the on-line monitoring of relaying protection in addition, and monitoring and maintenance difficulty is strengthened.
Utility model content
The utility model is to solve the on-line monitoring of not realizing relaying protection existing in known technology, makes the problem that monitoring and maintenance difficulty strengthens and a kind of on-line monitoring protective device of simple in structure, easy to install, the high-tension apparatus relaying protection of increasing work efficiency is provided.
The technical scheme that the utility model is taked for the technical problem existing in solution known technology is:
The on-line monitoring protective device of the high-tension apparatus relaying protection of the utility model embodiment, the on-line monitoring protective device of this high-tension apparatus relaying protection comprises: voltage transformer, AD modular converter, button, controller module, display panel module, relay output unit;
Voltage transformer, carries out analog-to-digital conversion for the voltage parameter of protected high-tension apparatus circuit is offered to AD modular converter;
AD modular converter, is connected with voltage transformer, is converted to digital signal and sends into controller module processing for the voltage parameter signal of voltage transformer collection;
Button, is connected with controller module, for receiving the parameter information of user's input, and delivers to controller module and processes;
Controller module, for the digital signal after the conversion of AD modular converter is carried out to analyzing and processing and the computing of data, analyze the ruuning situation of high-tension apparatus circuit, on the one hand real-time high-tension apparatus line status being presented on display screen, control in time on the other hand the timely open failure circuit of relay output unit, ensure equipment safety operation;
Display panel module, is connected with controller module, for receiving the signal from controller module, and real-time display device ruuning situation;
Relay output unit with, is connected with controller module, for receiving the troubleshooting signal from controller module, cut-off in time relay, ensure device systems generate heat safe operation.
The utility model can also adopt following technical measures:
Further, voltage transformer is connected with protected high-tension apparatus circuit respectively according to delta connection mode or star-star connection mode.
Advantage and the good effect that the utlity model has are: because the utility model adopts relaying protection, in the time that user need to convert the external wiring pattern of protective relaying device to delta connection mode from star-star connection mode, can realize relaying protection with same protective relaying device, thereby can economize on resources; Possess customer parameter typing and monitoring Presentation Function, make monitoring of equipment information more perfect, understand more perfect to the state of equipment.The utility model is simple in structure, and modularized design makes to safeguard and use very fast and simple, online to the circuit ruuning situation of high-tension apparatus monitoring, and monitors in time abnormal conditions generation also in time for equipment provides protection.
Brief description of the drawings
Fig. 1 is the on-line monitoring protective device structural representation of the high-tension apparatus relaying protection that provides of the utility model embodiment;
In figure: 1, voltage transformer; 2, AD modular converter; 3, button; 4, controller module; 5, display panel module; 6, relay output unit.
Embodiment
For further understanding utility model content of the present utility model, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows: the utility model software module used all belongs to known module, in the time buying hardware module, this software module has been installed.There is not the innovation of software or method in the utility model.
Refer to Fig. 1:
As shown in Figure 1, the on-line monitoring protective device of the high-tension apparatus relaying protection of the utility model embodiment is mainly made up of voltage transformer 1, AD modular converter 2, button 3, controller module 4, display panel module 5, relay output unit 6;
1, three voltage transformer of voltage transformer is connected with protected high-tension apparatus circuit respectively according to delta connection mode or star-star connection mode, carries out analog-to-digital conversion for the voltage parameter of protected high-tension apparatus circuit being offered to AD modular converter 2;
AD modular converter 2, is connected with voltage transformer 1, and the voltage parameter signal gathering for voltage transformer 1 is converted to digital signal and sends into controller module 4 and process;
Button 3, is connected with controller module 4, for receiving the parameter information of user's input, and delivers to controller module 4 and processes;
Controller module 4, carry out analyzing and processing and the computing of data for the digital signal after AD modular converter 2 is changed, analyze the ruuning situation of high-tension apparatus circuit, on the one hand real-time high-tension apparatus line status being presented on display screen, control in time on the other hand the timely open failure circuit of relay output unit, ensure equipment safety operation;
Display panel module 5, is connected with controller module 4, for receiving the signal from controller module 4, and real-time display device ruuning situation;
Relay output unit 6 with, be connected with controller module 4, for receiving the troubleshooting signal from controller module 4, cut-off in time relay, ensure device systems heating safe operation.
Operation principle of the present utility model:
Voltage transformer 1 is connected with AD modular converter 2, three voltage transformers are connected with protected high-tension apparatus circuit respectively according to delta connection mode or star-star connection mode, the voltage parameter of protected high-tension apparatus circuit is offered to AD modular converter 2 and carry out analog-to-digital conversion; AD modular converter 2 is connected with controller module 4, and AD modular converter 2 is carried out to the Digital Signal Analysis processing after analog-to-digital conversion, provides fault actions and state to show; Key-press module 3 is connected with controller module 4, the parameter of user's input is delivered to controller module 4 and process; Controller module 4 is connected with relay output unit 6 with display panel module 5, controller module 4 carries out analyzing and processing and the computing of data, analyze the ruuning situation of high-tension apparatus circuit, on the one hand real-time high-tension apparatus line status being presented on display panel module 5, control in time on the other hand the timely open failure circuit of relay output unit 6, ensure equipment safety operation.
In conjunction with following analysis, the utility model is described further:
The utility model comprises: three voltage transformers, are connected with protected power circuit respectively according to delta connection mode or star-star connection mode, for the voltage parameter of protected power circuit is provided to controller module, controller module, be used for obtaining voltage parameter, in the time that voltage transformer is connected with protected power circuit according to delta connection mode, the voltage parameter obtaining is processed, make the voltage parameter after treatment can be compatible mutually with the judgment mode of preset relaying protection, adopt the judgment mode of preset relaying protection to judge whether to carry out relaying protection to protected power circuit according to voltage parameter after treatment, preset relaying protection judgment mode is that the voltage parameter providing according to the voltage transformer that adopts Y-connection mode to be connected with protected power circuit designs,
Or, in the time that voltage transformer is connected with protected power circuit according to star-star connection mode, adopt the judgment mode of preset relaying protection to judge whether to carry out relaying protection to protected power circuit according to the voltage parameter obtaining;
In the time that needs carry out relaying protection to protected power circuit, the make-break operation of control relay unit;
The utility model comprises: the voltage parameter of the protected power circuit being provided by three voltage transformers is provided, voltage transformer according to, be connected with protected power circuit respectively according to delta connection mode or star-star connection mode;
Obtain voltage parameter, in the time that voltage transformer is connected with protected power circuit according to delta connection mode, the voltage parameter obtaining is processed, make the voltage parameter after treatment can be compatible mutually with the judgment mode of preset relaying protection, adopt the judgment mode of preset relaying protection to judge whether to carry out relaying protection to protected power circuit according to voltage parameter after treatment, preset relaying protection judgment mode is that the voltage parameter providing according to the voltage transformer that adopts Y-connection mode to be connected with protected power circuit designs; Or, in the time that voltage transformer is connected with protected power circuit according to star-star connection mode, adopt the judgment mode of preset relaying protection to judge whether to carry out relaying protection to protected power circuit according to the voltage parameter obtaining;
In the time that needs carry out relaying protection to protected power circuit, the make-break operation of control relay unit.In the utility model embodiment, three voltage transformers are connected with protected power circuit according to different external wiring patterns, in the time that external wiring pattern is delta connection mode, controller module is for the treatment of the voltage parameter of the protected power circuit obtaining from voltage transformer sampling AD conversion, these voltage parameters after treatment can be used in preset relaying protection judgment mode, and then judge whether to carry out relaying protection to protected power circuit, in the time needing relaying protection, control the make-break operation of relay unit, in the time that external wiring pattern is star-star connection mode, because preset relaying protection judgment mode is to design according to the voltage parameter that adopts the voltage transformer of Y-connection mode to provide, controller module can directly adopt preset relaying protection judgment mode to judge whether to carry out relaying protection to protected power circuit according to the voltage parameter of the protected power circuit obtaining from voltage transformer sampling and after AD conversion.Therefore in the utility model embodiment, in the time that user need to convert the external wiring pattern of protective relaying device to delta connection mode from star-star connection mode, can realize relaying protection with same protective relaying device, thereby can economize on resources.
Controller module, gathering also real-time being presented on the display screen of protecting box of monitoring result after treatment, reacts the relaying protection situation of high-tension apparatus in time, reaches the object of on-line monitoring relaying protection.
The above is only to preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, every foundation technical spirit of the present utility model is to any simple modification made for any of the above embodiments, equivalent variations and modification, all belong in the scope of technical solutions of the utility model.
Claims (2)
1. the on-line monitoring protective device of a high-tension apparatus relaying protection, it is characterized in that, the on-line monitoring protective device of this high-tension apparatus relaying protection comprises: voltage transformer, AD modular converter, button, controller module, display panel module, relay output unit;
Voltage transformer, carries out analog-to-digital conversion for the voltage parameter of protected high-tension apparatus circuit is offered to AD modular converter;
AD modular converter, is connected with voltage transformer, is converted to digital signal and sends into controller module processing for the voltage parameter signal of voltage transformer collection;
Button, is connected with controller module, for receiving the parameter information of user's input, and delivers to controller module and processes;
Controller module, for the digital signal after the conversion of AD modular converter is carried out to analyzing and processing and the computing of data, analyze the ruuning situation of high-tension apparatus circuit, on the one hand real-time high-tension apparatus line status being presented on display screen, control in time on the other hand the timely open failure circuit of relay output unit, ensure equipment safety operation;
Display panel module, is connected with controller module, for receiving the signal from controller module, and real-time display device ruuning situation;
Relay output unit with, is connected with controller module, for receiving the troubleshooting signal from controller module, cut-off in time relay, ensure device systems generate heat safe operation.
2. the on-line monitoring protective device of high-tension apparatus relaying protection as claimed in claim 1, is characterized in that, voltage transformer is connected with protected high-tension apparatus circuit respectively according to delta connection mode or star-star connection mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320853894.XU CN203774756U (en) | 2013-12-23 | 2013-12-23 | On-line monitoring protection device for relay protection of high voltage equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320853894.XU CN203774756U (en) | 2013-12-23 | 2013-12-23 | On-line monitoring protection device for relay protection of high voltage equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203774756U true CN203774756U (en) | 2014-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320853894.XU Expired - Fee Related CN203774756U (en) | 2013-12-23 | 2013-12-23 | On-line monitoring protection device for relay protection of high voltage equipment |
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| CN (1) | CN203774756U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104635910A (en) * | 2014-12-30 | 2015-05-20 | 宁波江东波莫纳电子科技有限公司 | Power management control system for computer |
| CN104932653A (en) * | 2015-06-18 | 2015-09-23 | 常州工学院 | Computer startup management control system |
-
2013
- 2013-12-23 CN CN201320853894.XU patent/CN203774756U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104635910A (en) * | 2014-12-30 | 2015-05-20 | 宁波江东波莫纳电子科技有限公司 | Power management control system for computer |
| CN104932653A (en) * | 2015-06-18 | 2015-09-23 | 常州工学院 | Computer startup management control system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20151223 |
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| EXPY | Termination of patent right or utility model |