CN102082049A - Protection device for high-voltage line fuse and transmission and distribution detection system - Google Patents
Protection device for high-voltage line fuse and transmission and distribution detection system Download PDFInfo
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- CN102082049A CN102082049A CN2010105788323A CN201010578832A CN102082049A CN 102082049 A CN102082049 A CN 102082049A CN 2010105788323 A CN2010105788323 A CN 2010105788323A CN 201010578832 A CN201010578832 A CN 201010578832A CN 102082049 A CN102082049 A CN 102082049A
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Abstract
The invention belongs to the field of power system detection, in particular to a protection device for a high-voltage line fuse and a transmission and distribution detection system. The protection device comprises a current temperature sampling module, a microprocessor and a knife switch tripping module, wherein the current temperature sampling module is used for sampling and shaping a current temperature signal of a high-voltage line by an electromagnetic induction principle and outputting the shaped current temperature signal; the microprocessor is used for performing digital analysis, processing and judgment on a current signal processed by the current temperature sampling module in the high-voltage line, and outputting a control signal; and the knife switch tripping module is used for controlling the on and off states of a knife switch according to the control signal of the microprocessor. The protection device effectively prevents the maloperation and the slow motion of the preposed knife switch tripping module by adopting the structures such as the microprocessor, the knife switch tripping module and the like, so that a circuit is cut off before meeting a fusing current and a time condition of the fuse to avoid unnecessary fusing of the fuse; therefore, risk probability of major accidents of the high-voltage line is reduced; national metal resources are also effectively saved; and environmental pollution is reduced.
Description
Technical field
The invention belongs to the electric power system detection range, relate in particular to a kind of protective device and power transmission and distribution detection system of high-tension line fusible link.
Background technology
At present, fusible link has as a kind of overload protection measure to be implemented simple and easyly, protects respond well; with low cost; operating personnel's technical merit is required characteristics such as low, general easily, in the social development process, especially in the process that electric energy uses, played indelible effect and contribution.But fusible link is as a kind of disposable measure, in today of social resources growing tension, the more and more higher resource of the price of various metal materials is more and more nervous, the disposable action characteristic of fusible link has caused using in a large number and producing of fusible link simultaneously, has just strengthened the social production cost and the consumption of materials so virtually.Simultaneously the high temperature of fuse failure moment also generates multiple metal oxide to the metal gasification and causes pollution in various degree for soil and atmosphere, this metalloid heavy metal pollution to human health exist greatly threaten also difficult simultaneously with administer.
Along with the development of electronics technology, automatically control part has slowly replaced fusible link, but still has irreplaceability for fusible link under high-voltage great-current and the absolute situation about ensureing as the most conservative substantially safety measure.But, also lack now and before satisfying fusible link blowout current and time conditions, cut off circuit and avoid the device of the unnecessary fusing of fusible link, can protect the isolated high-voltage power circuit thereby reach, can save resource loss again.
Summary of the invention
The present invention provides a kind of protective device of high-tension line fusible link for solving the technical problem that exists in the known technology, is intended to solve and cut off the problem that circuit is avoided the unnecessary fusing of fusible link before satisfying fusible link blowout current and time conditions.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is:
A kind of protective device of high-tension line fusible link, described protective device comprises:
The current temperature sampling module is used for by electromagnetic induction principle high-tension line being carried out the line output of going forward side by side after current temperature signals sampling and the shaping;
Microprocessor is used for the current signal of high-tension line after described current temperature sampling module is handled carried out digitized analysis, handles and judgement and output control signal;
Plug-in strip takes off a mouthful module, is used for the break-make according to the control signal of described little processing control plug-in strip, with the safe operation of protection high-tension line with avoid the unnecessary loss of fusible link.
Another object of the present invention also provides a kind of power transmission and distribution detection system that comprises above-mentioned protective device.
The present invention can also be further by the following technical solutions:
Described protective device also comprises: the instrument transformer electricity-fetching module is used for obtaining electric current by electromagnetic induction principle from high-tension line, for described protective device provides power supply.
Described plug-in strip takes off a mouthful module and is installed between described microprocessor and the fusible link.
The present invention takes off structures such as mouthful module by adopting microprocessor, plug-in strip, prevented that effectively preposition plug-in strip from taking off the malfunction and the slow motion of mouthful module, make and before satisfying fusible link blowout current and time conditions, cut off circuit, avoid the unnecessary fusing of fusible link, the action accuracy and the accuracy of fusible link have been improved greatly, thereby greatly reduce the risk probability that major break down appears in high-tension line, also effectively saved national metals resources, reduced pollution, promoted the greenization and the intelligentized process of electrical network environment.
Description of drawings
Fig. 1 is the structured flowchart that is used to adapt to the energy taking device that electric current on a large scale changes that the embodiment of the invention provides;
Fig. 2 is the circuit diagram that is used to adapt to the energy taking device that electric current on a large scale changes that the embodiment of the invention provides.
Fig. 3 is that the plug-in strip that is used to adapt to the energy taking device that electric current on a large scale changes that the embodiment of the invention provides takes off the structural representation of mouthful module.
Embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, exemplify the following example of executing now, and conjunction with figs. is described in detail as follows:
Fig. 1 shows the structured flowchart of the protective device of the high-tension line fusible link that the embodiment of the invention provides, and for convenience of explanation, only shows part related to the present invention.
The protective device of the high-tension line fusible link that the embodiment of the invention provides comprises that mainly current temperature sampling module 11, microprocessor 12, plug-in strip take off mouthful module 13.
Current temperature sampling module 11 is used for by electromagnetic induction principle high-tension line being carried out the line output of going forward side by side after current temperature signals sampling and the shaping;
Plug-in strip takes off mouthful module 13, is used for the break-make according to the control signal of described little processing control plug-in strip, with the safe operation of protection high-tension line with avoid the unnecessary loss of fusible link 15.
As a preferred version of the embodiment of the invention, described protective device also comprises and is used for obtaining electric current by electromagnetic induction principle from high-tension line, for described protective device provides power transformer electricity-fetching module 11.
As a preferred version of the embodiment of the invention, described plug-in strip takes off mouthful module 13 and is installed between described microprocessor 12 and the fusible link 15.
As shown in Figure 2, the current transformer of instrument transformer electricity-fetching module 14 utilizes electromagnetic induction principle to obtain electric current from high-tension line, provides stable and reliable power supply to whole device.Simultaneously, the current temperature sampling module also carries out current temperature signals sampling and shaping by the electromagnetic induction principle of instrument transformer to high-tension line, and electric current and the temperature sent into then in 12 pairs of high-tension lines of microprocessor are analyzed, detected and judge.If electric current in the high-tension line and temperature reach the relevant criterion of fusible link 15 action, just trigger preposition plug-in strip shown in Figure 3 take off mouthful module 13 plug-in strip take off a mouthful action, effectively protect the safety of power circuit and the unnecessary loss of fusible link 15.If testing result does not reach the relevant criterion of fusible link 15 actions, the plug-in strip that preposition plug-in strip takes off mouthful module 13 then can not move, and repeats the appeal process.
The protective device of the high-tension line fusible link 15 that provides by the embodiment of the invention can improve greatly high-voltage electric power circuit is broken down moment, and the action accuracy and the accuracy of fusible link 15 have effectively prevented the malfunction and the slow motion of preposition chopper system.Greatly reduce high-tension line and the risk probability of major break down occurs, also effectively saved national metals resources, reduced pollution, promoted the greenization and the intelligentized process of electrical network environment.
The main application fields of the embodiment of the invention is in the electric power energy field, can be installed in flexibly on the electric power system power circuit, also can be used with other functional modules, common more powerful power transmission and distribution detection system and the electrical network feed system of composition function.
The above only is to preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention is to any simple modification that above embodiment did, and equivalent variations and modification all belong in the scope of technical solution of the present invention.
Claims (6)
1. the protective device of a high-tension line fusible link is characterized in that, described protective device comprises:
The current temperature sampling module is used for by electromagnetic induction principle high-tension line being carried out the line output of going forward side by side after current temperature signals sampling and the shaping;
Microprocessor is used for the current signal of high-tension line after described current temperature sampling module is handled carried out digitized analysis, handles and judgement and output control signal;
Plug-in strip takes off a mouthful module, is used for the break-make according to the control signal of described little processing control plug-in strip, with the safe operation of protection high-tension line with avoid the unnecessary loss of fusible link.
2. protective device as claimed in claim 1 is characterized in that, described protective device also comprises:
The instrument transformer electricity-fetching module is used for obtaining electric current by electromagnetic induction principle from high-tension line, for described protective device provides power supply.
3. protective device as claimed in claim 1 is characterized in that, described plug-in strip takes off a mouthful module and is installed between described microprocessor and the fusible link.
4. power transmission and distribution detection system, this system comprises the protective device of high-tension line fusible link, it is characterized in that, described protective device comprises:
The current temperature sampling module is used for by electromagnetic induction principle high-tension line being carried out the line output of going forward side by side after current temperature signals sampling and the shaping;
Microprocessor is used for the current signal of high-tension line after described current temperature sampling module is handled carried out digitized analysis, handles and judgement and output control signal;
Plug-in strip takes off a mouthful module, is used for the break-make according to the control signal of described little processing control plug-in strip, with the safe operation of protection high-tension line with avoid the unnecessary loss of fusible link.
5. power transmission and distribution detection system as claimed in claim 4 is characterized in that, described protective device also comprises:
The instrument transformer electricity-fetching module is used for obtaining electric current by electromagnetic induction principle from high-tension line, for described protective device provides power supply.
6. power transmission and distribution detection system as claimed in claim 4 is characterized in that, described plug-in strip takes off a mouthful module and is installed between described microprocessor and the fusible link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105788323A CN102082049A (en) | 2010-12-08 | 2010-12-08 | Protection device for high-voltage line fuse and transmission and distribution detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105788323A CN102082049A (en) | 2010-12-08 | 2010-12-08 | Protection device for high-voltage line fuse and transmission and distribution detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102082049A true CN102082049A (en) | 2011-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105788323A Pending CN102082049A (en) | 2010-12-08 | 2010-12-08 | Protection device for high-voltage line fuse and transmission and distribution detection system |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2412302Y (en) * | 1997-12-31 | 2000-12-27 | 何清海 | Multifunctional protector for electrical appliances |
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2010
- 2010-12-08 CN CN2010105788323A patent/CN102082049A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2412302Y (en) * | 1997-12-31 | 2000-12-27 | 何清海 | Multifunctional protector for electrical appliances |
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Application publication date: 20110601 |