CN102097783A - High-voltage flexible safety device - Google Patents
High-voltage flexible safety device Download PDFInfo
- Publication number
- CN102097783A CN102097783A CN201110023385XA CN201110023385A CN102097783A CN 102097783 A CN102097783 A CN 102097783A CN 201110023385X A CN201110023385X A CN 201110023385XA CN 201110023385 A CN201110023385 A CN 201110023385A CN 102097783 A CN102097783 A CN 102097783A
- Authority
- CN
- China
- Prior art keywords
- voltage
- circuit
- safety device
- flexible safety
- processor
- 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
Images
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention provides a high-voltage flexible safety device, and relates to the safety protection field of power operation equipment. The high-voltage flexible safety device comprises a microcomputer processor, wherein the input end of the microcomputer processor is connected with a current transformer, a zero-sequence current mutual inductor and a voltage mutual inductor; and the output end of the microcomputer processor is connected with a voltage transformer protector, an arc light grounding processor, a resonance processing unit, a multiterm filtering processing device and an arc light processing device. The high-voltage flexible safety device integrates functions of arc extinction, resonance extinction, overvoltage, harmonic wave, resonance, high-voltage insulation monitoring and protection into a whole, thus parts of faults of a neutral point non-effective grounding power grid can be processed automatically and the scope for safe operation of the power grid is greatly enlarged.
Description
Technical field:
The present invention relates to operation power device security protection field, be specifically related to a kind of high pressure Flexible Safety device.
Background technology:
In the electric power system of a lot of industrial and mining enterprises, most of user's high and low pressure switchgear houses and outdoor on-the-spot thick line are cable substantially, and the high and low pressure circuit mixes, and than comparatively dense, running environment is more abominable.
Along with the development of present electrical network, it is a kind of inexorable trend that overhead transmission line is progressively replaced by the solid insulation circuit.Because the build-up effect that solid insulation punctures, its internal overvoltage, particularly arc grounding overvoltage that produces during electrical network generation single phase intermittent arc grounding and the ferro-resonance over-voltage that excites thus, and system resonance, harmonic wave, dielectric strength etc., become one of this class electric power netting safe running and threatened greatly, the automatic processing of insulating monitoring and fault has become requisite important topic and has conscientiously solved.
Summary of the invention:
Technical problem to be solved by this invention be to provide a kind of collect extinguishing arc, harmonic elimination, and overvoltage, harmonic wave, resonance, High-Voltage Insulation monitoring and defencive function be the high pressure Flexible Safety device of one.
Technical problem to be solved by this invention realizes by the following technical solutions,
A kind of high pressure Flexible Safety device, it is characterized in that: described high pressure Flexible Safety device includes computer processor, the input of computer processor is connected with current transformer, zero sequence current mutual inductor, voltage transformer, and the output of computer processor is connected with voltage transformer protective device, arc grounding processor, resonance processing unit, multinomial filter processing device, arc light processing unit; Described high pressure Flexible Safety device comprises that also overvoltage suppresses circuit, mutual induction of voltage circuit, arc light treatment circuit; described overvoltage suppresses circuit by excess voltage suppressor ground connection; ground connection after described mutual induction of voltage circuit is connected with described voltage transformer protective device by described voltage transformer; ground connection after described arc light treatment circuit is connected with described arc grounding processor by described arc light processor connects isolation switch after described voltage-suppressing circuit, mutual induction of voltage circuit, the parallel connection of arc light treatment circuit.
Described mutual induction of voltage circuit has been arranged in parallel two groups, and system adopts two voltage transformer samplings and the protection of voltage transformer multilayer.
Described computer processor adopts two DSP32 bit machines, calculates, analysis speed is fast.
The invention has the beneficial effects as follows collection extinguishing arc, harmonic elimination, reaching inhibition overvoltage, harmonic wave, resonance, High-Voltage Insulation monitoring and defencive function is one; most of fault of neutral non-effective grounding electrical network is handled automatically, and has improved the scope of electric power netting safe running greatly.
Description of drawings:
Fig. 1 is a principle schematic of the present invention.
Fig. 2 is a system schematic of the present invention.
Embodiment:
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with specific embodiment and diagram, further set forth the present invention.
As shown in Figure 1 and Figure 2, a kind of high pressure Flexible Safety device, include computer processor 10, the input of computer processor 10 is connected with current transformer 1, zero sequence current mutual inductor 2, voltage transformer 6, and the output of computer processor 10 is connected with voltage transformer protective device 7, arc grounding processor 8, resonance processing unit 11, multinomial filter processing device 12, arc light processing unit 9; High pressure Flexible Safety device comprises that also overvoltage suppresses circuit, mutual induction of voltage circuit, arc light treatment circuit; overvoltage suppresses circuit by excess voltage suppressor 5 ground connection; ground connection after the mutual induction of voltage circuit is connected with voltage transformer protective device 7 by voltage transformer 6; ground connection after the arc light treatment circuit is connected with arc grounding processor 8 by arc light processor 9 connects isolation switch 3 after voltage-suppressing circuit, mutual induction of voltage circuit, the parallel connection of arc light treatment circuit.
The mutual induction of voltage circuit has been arranged in parallel two groups, and system adopts two voltage transformer 6 samplings and the protection of voltage transformer 6 multilayers.Computer processor 10 adopts the DSP32 bit machines, calculates, analysis speed is fast.
When the overvoltage of high amplitude appearred in system, overvoltage suppresses circuit at first devoted oneself to work, with system's overvoltage Limiting in the safe range that insulation of electrical installation allows; When ground connection or resonance fault take place in protected system; the instantaneous value of the three-phase voltage U a that computer processor 10 provides according to voltage transformer 6, Ub, Uc and open delta voltage U; the variate-value that summation current transformer 1 provides; and zero-sequence current 2 provide changing value judge the character of fault, send corresponding instruction and signal.
1. if the fault of Fa Shenging is a unstable arc ground connection, computer processor 10 sends instruction after judging ground connection separate, makes in the vacuum contactor 10ms of fault phase closed; With arc grounding processor 8 restriction and adjustment module inputs, the restriction of arc light electric current is discharged, limited the fault of fault phase.
2. if the fault of Fa Shenging is a stable arc ground connection, computer processor 10 is after judging that fault is separate, make fault phase and high-pressure vacuum contactor work, make system in 30ms, be quickly converted to the direct ground connection of stable metallicity by the arc grounding of stability, make the fault phase voltage reduce to zero, electric arc disappears.Illustrate that this arcing ground fault is that computer processor 10 route selections are handled because the instantaneity earth fault that voltge surge causes is installed and assert that this fault is nonvolatil arcing ground fault.
3. if the fault of Fa Shenging is in the protection range of this device (this device hypomere user); this device is handled immediately; if metallic direct earth fault takes place in the epimere user; this device can send early warning signal and indication according to the nature of trouble differentiation; the user can be according to the fault section situation, in time reflects and handles.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (3)
1. high pressure Flexible Safety device, it is characterized in that: described high pressure Flexible Safety device includes computer processor, the input of computer processor is connected with current transformer, zero sequence current mutual inductor, voltage transformer, and the output of computer processor is connected with voltage transformer protective device, arc grounding processor, resonance processing unit, multinomial filter processing device, arc light processing unit;
Described high pressure Flexible Safety device comprises that also overvoltage suppresses circuit, mutual induction of voltage circuit, arc light treatment circuit; described overvoltage suppresses circuit by excess voltage suppressor ground connection; ground connection after described mutual induction of voltage circuit is connected with described voltage transformer protective device by described voltage transformer; ground connection after described arc light treatment circuit is connected with described arc grounding processor by described arc light processor connects isolation switch after described voltage-suppressing circuit, mutual induction of voltage circuit, the parallel connection of arc light treatment circuit.
2. a kind of high pressure Flexible Safety device according to claim 1, it is characterized in that: described mutual induction of voltage circuit has been arranged in parallel two groups.
3. a kind of high pressure Flexible Safety device according to claim 1 is characterized in that: described computer processor adopts the input and output interface of two DSP32 bit machines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110023385XA CN102097783A (en) | 2011-01-21 | 2011-01-21 | High-voltage flexible safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110023385XA CN102097783A (en) | 2011-01-21 | 2011-01-21 | High-voltage flexible safety device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102097783A true CN102097783A (en) | 2011-06-15 |
Family
ID=44130703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110023385XA Pending CN102097783A (en) | 2011-01-21 | 2011-01-21 | High-voltage flexible safety device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102097783A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103606887A (en) * | 2013-11-27 | 2014-02-26 | 安徽泰隆电气有限公司 | Electronic rapid resonance elimination device installed at neutral point |
| CN104078960A (en) * | 2014-06-11 | 2014-10-01 | 安徽三和电力技术有限公司 | Electric energy security intelligent detection and control device |
| CN105356441A (en) * | 2015-11-17 | 2016-02-24 | 国网冀北电力有限公司张家口供电公司 | Intelligent PT harmonic elimination and phase selection method and device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2847638Y (en) * | 2005-10-28 | 2006-12-13 | 朱勇 | Arc extinetion and resonance extinction overvoltage protector |
| CN101707369A (en) * | 2009-03-17 | 2010-05-12 | 郭道胜 | Arc and resonance elimination comprehensive device for power grid |
| CN201498986U (en) * | 2009-09-27 | 2010-06-02 | 合肥普望电子有限责任公司 | Isolating arc extinguishing cabinet |
| JP2010268543A (en) * | 2009-05-12 | 2010-11-25 | Kanto Denki Hoan Kyokai | Electric leakage preventing monitoring system |
| CN201956666U (en) * | 2011-01-21 | 2011-08-31 | 合肥徽力电气技术有限公司 | High-voltage flexible safety device |
-
2011
- 2011-01-21 CN CN201110023385XA patent/CN102097783A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2847638Y (en) * | 2005-10-28 | 2006-12-13 | 朱勇 | Arc extinetion and resonance extinction overvoltage protector |
| CN101707369A (en) * | 2009-03-17 | 2010-05-12 | 郭道胜 | Arc and resonance elimination comprehensive device for power grid |
| JP2010268543A (en) * | 2009-05-12 | 2010-11-25 | Kanto Denki Hoan Kyokai | Electric leakage preventing monitoring system |
| CN201498986U (en) * | 2009-09-27 | 2010-06-02 | 合肥普望电子有限责任公司 | Isolating arc extinguishing cabinet |
| CN201956666U (en) * | 2011-01-21 | 2011-08-31 | 合肥徽力电气技术有限公司 | High-voltage flexible safety device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103606887A (en) * | 2013-11-27 | 2014-02-26 | 安徽泰隆电气有限公司 | Electronic rapid resonance elimination device installed at neutral point |
| CN104078960A (en) * | 2014-06-11 | 2014-10-01 | 安徽三和电力技术有限公司 | Electric energy security intelligent detection and control device |
| CN105356441A (en) * | 2015-11-17 | 2016-02-24 | 国网冀北电力有限公司张家口供电公司 | Intelligent PT harmonic elimination and phase selection method and device |
| CN105356441B (en) * | 2015-11-17 | 2018-05-29 | 国网冀北电力有限公司张家口供电公司 | The method and apparatus of intelligent PT harmonic eliminations phase selection |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100546146C (en) | The harmonic elimination of neutral non-effective grounding electrical network, arc extinguishing method and comprehensive protector | |
| CN201312112Y (en) | Overvoltage monitoring and comprehensive protective device for medium voltage power network | |
| CN201956666U (en) | High-voltage flexible safety device | |
| CN202004453U (en) | High-voltage flexible overvoltage suppression device | |
| CN102097783A (en) | High-voltage flexible safety device | |
| CN201054497Y (en) | Resonance and arc-elimination integrated device for neutral non-valid ground mesh | |
| CN202009232U (en) | Novel arc and resonance extinguishing device | |
| CN106684850B (en) | High-tension transformer earth neutral system | |
| CN203180508U (en) | System overvoltage inhibition apparatus | |
| CN202524078U (en) | Arc suppression and overvoltage protection device controller | |
| CN203932706U (en) | A kind of arc-extinguishing harmonic-eliminating cabinet | |
| CN201887468U (en) | Device for limiting all overvoltage | |
| CN105048437B (en) | A kind of combined type neutral ground composite control apparatus | |
| CN203014377U (en) | Power grid overvoltage inhibition apparatus | |
| CN103683262B (en) | Active voltage regulating type arc extinction voltage limiting protecting device for small current grounding system | |
| CN206226010U (en) | Transformer neutral point protection system to earth | |
| CN105529685A (en) | Temporary IT grounding system switching method for variable-frequency-load TT grounding system low-voltage system under condition of electric leakage failure | |
| CN104953578A (en) | System overvoltage suppression device | |
| CN104065054A (en) | Overvoltage inhibition cabinet | |
| CN201774233U (en) | Novel protection device special for low voltage generator | |
| CN201887444U (en) | Electric grounding comprehensive protector for TXHPT | |
| CN202014089U (en) | High-voltage flexible PT device | |
| CN203859512U (en) | PT arc-extinguishing protective device | |
| CN107611956A (en) | A kind of small high voltage switch cubicle | |
| CN202616767U (en) | Intelligent comprehensive arc-extinction resonance-elimination overvoltage protection optimizing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110615 |