CN2899078Y - Timing releaser - Google Patents
Timing releaser Download PDFInfo
- Publication number
- CN2899078Y CN2899078Y CN 200620078690 CN200620078690U CN2899078Y CN 2899078 Y CN2899078 Y CN 2899078Y CN 200620078690 CN200620078690 CN 200620078690 CN 200620078690 U CN200620078690 U CN 200620078690U CN 2899078 Y CN2899078 Y CN 2899078Y
- Authority
- CN
- China
- Prior art keywords
- unit
- timing
- disconnector
- explosion
- utility
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a timing releaser with the technic proposal as follows: the timing releaser comprises a sampling unit R and a blasting unit ZY both are connected in parallel. The utility model solves the disadvantages of being unable to protect overvoltage equipment, inaccurate disengaging time and limit application range of releaser adopting common technology, thereby having the advantages of being able to avoid permanent breakdown of overvoltage protecting equipment under high crest value and long time overvoltage, and extensive application range.
Description
One, technical field
The utility model relates to a kind of timing disconnector.
Two, background technology
In the power industry, serve as voltage apparatus (as lightning arrester, rc absorber etc.) under the situation of making alive overlong time, easily be damaged, when serious, can cause blast, used the system of overvoltage protective device to produce permanent fault.
Present disconnector is exclusively used in lightning arrester, this disconnector is arranged on the end of lightning arrester usually, when lightning arrester making alive overlong time, when making the fault current of lightning arrester reach certain numerical value by disconnector, the heat that the inner valve block of disconnector is assembled is enough big, triggers releasing mechanism rapidly, and the blasting cartridge explosion is broken away from, realize the disengaging of lightning arrester and earth point, prevent the expansion of accident.But there is following shortcoming in this kind disconnector:
1, this disconnector only could break away under the situation that lightning arrester has damaged, and it can only prevent the expansion of accident, can not realize the protection to overvoltage equipment itself.
2, this disconnector is to increase by electric current to make the inner valve block heat of aggregation amount of disconnector and to reach certain temperature and start igniter, so the running-active status of disconnector is subjected to the influence of factors such as the temperature of surrounding environment, air pressure, humidity.And, because the waveform that various types of overvoltage produce is different, cause the electric current that produces unpredictable, can make that to ignite the result inaccurate, as: ignite in advance or lag behind and ignite, even this quick-friedly all can produce unnecessary loss.
3, this disconnector can only be applied in the lightning arrester, and it is of limited application.
Three, utility model content
The defective that the utility model has solved that disconnector exists in the background technology can not itself not protect overvoltage equipment, the separation time is inaccurate and be of limited application.
Technical solution of the present utility model is: the utility model is a kind of timing disconnector, and its special character is: this timing disconnector comprises sampling unit R1 and explosion unit ZY6, and explosion unit ZY6 is in parallel with sampling unit R1.
Also be parallel with protected location BH2 between above-mentioned sampling unit R1 and the explosion unit ZY6.
Also be parallel with rectification unit ZL3 between above-mentioned protected location BH2 and the explosion unit ZY6.
Also be parallel with filtering, voltage regulation unit LBWY4 between above-mentioned rectification unit ZL3 and the explosion unit ZY6.
Also be parallel with starting, delay unit QD, YS5 between above-mentioned filtering, voltage regulation unit LBWY4 and the explosion unit ZY6.
Above-mentioned sampling unit R1 is made by standard resistor or standard capacitor.
Above-mentioned rectification unit ZL3 is full-wave rectification unit or halfwave rectifier unit.
Above-mentioned filtering voltage regulation unit LBWY4 is made of inductance capacitance loop or π shape circuit and voltage stabilizing circuit.
Above-mentioned starting delay unit QD, YS5 are made of capacitor or integrator.
The utility model is to be exclusively used in protection is constituted or comprised the zinc oxide valve plate unit by non-linear zinc oxide valve plate overvoltage protective device; when high amplitude, long superpotential effect damage the zinc oxide component unit down; in time blow by the utility model and to make overvoltage protective device and electrical network break away from automatically; thereby the protection overvoltage protective device exempts from damage, therefore the utlity model has following advantage:
1, the utility model has not only possessed the permanent fault that can avoid overvoltage protective device to produce, the further expansion of accident prevention under high amplitude, long-time overvoltage effect; Simultaneously, it can promptly be isolated overvoltage protective device before overvoltage protective device is about to damage with system power supply, effectively protected the safety of electric equipment and the safety of operation power.
2, applied range.The utility model can be used for protecting series such as lightning arrester, rc absorber, combined type overvoltage protection device, combination overvoltage protector to comprise the equipment of the overvoltage protective device of zinc oxide valve plate unit.
3, the accident expansion that causes for avoiding the explosion time relic to splash everywhere, the utility model has also adopted the directional blasting mode, has effectively guaranteed accurately putting in place of disconnector disjunction.
Four, description of drawings
Fig. 1 is a schematic block circuit diagram of the present utility model.
Five, embodiment
Referring to Fig. 1; this is a preferred embodiment of the present utility model; it comprises sampling unit R1 and explosion unit ZY6; explosion unit ZY6 is in parallel with sampling unit R1; also be parallel with protected location BH2 successively between sampling unit R1 and the explosion unit ZY6; rectification unit ZL3, filtering voltage regulation unit LBWY4 and starting delay unit QD, YS5.Wherein:
Sampling unit R1: be used for the main circuit electric parameters is collected the utility model loop, as input variable of the present utility model.Sampling unit can be made by certain criteria resistance or standard capacitor, as fixed carbon resister, metalfilmresistor, wire-wound resistor, plated film electric capacity etc.
Protected location BH2: be used for protecting sampling unit.Protected location BH adopts high voltage not puncture or damages components and parts in the utility model circuit, as discharging gap, non-linear valve block, vacuum tube etc.
Rectification unit ZL3: be used for converting the input electric weight to direct current by interchange.Can adopt full-wave rectifier or half-wave rectifier, as halfwave rectifier bridge, full-wave rectification bridge etc.
Filtering voltage regulation unit LBWY4: be used for the spuious component filtering of high frequency in the electric weight of rectification output is improved waveform, avoid transient swing to influence the stable of the utility model operating characteristic.Can constitute by inductance capacitance loop or π shape circuit.As: electrochemical capacitor or ceramic disc capacitor and metalfilmresistor are used in combination.
Starting delay unit QD, YS5: according to the waveform characteristics, automatic setting starting voltage and corresponding starting time-delay guarantee that effectively overvoltage protective device is not damaged.Can constitute by capacitor or integrator etc.As: tantalum electric capacity, plated film electric capacity, electrochemical capacitor etc.
Explosion unit ZY6: be used under the impact of certain electric pulse, making and overvoltage protective device and charged system obviously cut off the utility model blast.Based on extraordinary high explosive.
The utility model is mounted between the power end and system power supply of overvoltage protective device in use,
When under the effect of normal rating voltage, it is low to import voltage magnitude of the present utility model, is not enough to start explosion unit ZY6, and the utility model can not move.
When under common switching overvoltage, lightning overvoltage effect, import voltage magnitude height of the present utility model, be higher than operation voltage, but because of voltage duration weak point, the utility model can not move.
When abnormal conditions such as arc grounding overvoltage that resonance overvoltage, single-phase earthing cause appear in system; because of its voltage magnitude height, longer duration; the automatic explosion of starting explosion unit ZY6 will protect equipment and system to isolate before overvoltage protective device is damaging.
Occur under aging or the defective situation at overvoltage protective device; because of the deterioration of its material strengthens main circuit current gradually; be input to sampling voltage of the present utility model and should understand increase thereupon; and; because of the time of its development longer; the utility model also can in time reflect and move explosion, plays a protective role.
Claims (9)
1, a kind of timing disconnector is characterized in that: this timing disconnector comprises sampling unit R and explosion unit ZY, and described explosion unit ZY is in parallel with sampling unit R.
2, timing disconnector according to claim 1 is characterized in that: also be parallel with protected location BH between described sampling unit R and the explosion unit ZY.
3, timing disconnector according to claim 2 is characterized in that: also be parallel with rectification unit ZL between described protected location BH and the explosion unit ZY.
4, timing disconnector according to claim 3 is characterized in that: also be parallel with filtering voltage regulation unit LBWY between described rectification unit ZL and the explosion unit ZY.
5, timing disconnector according to claim 4 is characterized in that: also be parallel with starting delay unit QD, YS between described filtering voltage regulation unit LBWY and the explosion unit ZY.
6, according to the described timing disconnector of the arbitrary claim of claim 1 to 5, it is characterized in that: described sampling unit R is made by standard resistor or standard capacitor.
7, timing disconnector according to claim 3 is characterized in that: described rectification unit ZL is full-wave rectification unit or halfwave rectifier unit.
8, timing disconnector according to claim 4 is characterized in that: described filtering voltage regulation unit LBWY is made of inductance capacitance loop or π shape circuit.
9, timing disconnector according to claim 5 is characterized in that: described starting delay unit QD, YS are made of capacitor or integrator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620078690 CN2899078Y (en) | 2006-03-31 | 2006-03-31 | Timing releaser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620078690 CN2899078Y (en) | 2006-03-31 | 2006-03-31 | Timing releaser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2899078Y true CN2899078Y (en) | 2007-05-09 |
Family
ID=38074411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620078690 Expired - Fee Related CN2899078Y (en) | 2006-03-31 | 2006-03-31 | Timing releaser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2899078Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106547201A (en) * | 2016-10-31 | 2017-03-29 | 中国船舶重工集团公司第七0五研究所 | A kind of round voyage behaviour thunder section trouserss free the method for testing of time under water |
-
2006
- 2006-03-31 CN CN 200620078690 patent/CN2899078Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106547201A (en) * | 2016-10-31 | 2017-03-29 | 中国船舶重工集团公司第七0五研究所 | A kind of round voyage behaviour thunder section trouserss free the method for testing of time under water |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203103947U (en) | Lightning protector | |
| CN101752858B (en) | Multi-gap metal gas discharge tube power supply over-voltage protection module | |
| CN202997557U (en) | Controllable trigger device for protecting 110kV transformer neutral point | |
| CN201478825U (en) | Power supply over voltage protection module for multi-gap metal gas discharge tube | |
| CN104134989A (en) | Explosion-proof type combined over-voltage protector large in energy capacitance | |
| CN2899078Y (en) | Timing releaser | |
| CN204144931U (en) | A kind of lightning arrester | |
| CN2789896Y (en) | Electric unit structure for metal oxide lightning arrester | |
| CN103269058A (en) | Controllable gap, and device and method for protecting neutral point of 110KV transformer based on controllable gap | |
| CN102254735A (en) | Protection device having functions of automatic control, energy moving and degradation self-separation for vacuum arc extinguish chamber | |
| CN201726124U (en) | Large current quick by-pass protection device | |
| CN111064172A (en) | Protection circuit and variable pitch system | |
| CN200950428Y (en) | Novel frequency division shunting separator | |
| CN203014373U (en) | Transient surge protector used specially for elevator | |
| KR100981787B1 (en) | One chip surge arrester with selector switch | |
| CN2590234Y (en) | Microcomputer arc extinguishing, wire selecting and excess voltage comprehensive protector | |
| CN207353645U (en) | Split clamping type cable arrester | |
| RU2304835C1 (en) | Overvoltage protective gear | |
| CN201118213Y (en) | Energy-storage capacitor group protector | |
| CN201910623U (en) | Resistance-capacitance absorber | |
| CN201388042Y (en) | Central high-voltage switch equal-height cabinet | |
| CN2565118Y (en) | Composite cover metal oxide arrester with damage indicator | |
| CN210430915U (en) | DC power supply lightning protection device with overcurrent and overvoltage protection function | |
| CN220457118U (en) | Trigger circuit of switch type SPD | |
| CN205429713U (en) | Over -voltage protector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070509 Termination date: 20140331 |