CN204719186U - A kind of sparking distance detecting device - Google Patents
A kind of sparking distance detecting device Download PDFInfo
- Publication number
- CN204719186U CN204719186U CN201520486877.6U CN201520486877U CN204719186U CN 204719186 U CN204719186 U CN 204719186U CN 201520486877 U CN201520486877 U CN 201520486877U CN 204719186 U CN204719186 U CN 204719186U
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- metal contact
- insulated substrate
- probe
- detecting device
- electric discharge
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- 239000000523 sample Substances 0.000 claims abstract description 34
- 239000002184 metal Substances 0.000 claims abstract description 31
- 239000000758 substrate Substances 0.000 claims abstract description 27
- 238000007599 discharging Methods 0.000 claims abstract description 12
- 239000012212 insulator Substances 0.000 description 26
- 229910000831 Steel Inorganic materials 0.000 description 24
- 239000010959 steel Substances 0.000 description 24
- 238000001514 detection method Methods 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
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- Testing Relating To Insulation (AREA)
Abstract
The utility model relates to a kind of sparking distance detecting device, it comprises insulated substrate, be arranged on two metal contact of insulated substrate front end and be arranged on insulated substrate and the two electric discharge probes be electrically connected with two metal contact respectively, the needle point of electric discharge probe is oppositely arranged and forms discharging gap between needle point, Acoustooptic indicator is connected with between a metal contact wherein and electric discharge probe, Acoustooptic indicator comprises light emitting diode, hummer, commutation diode, divider resistance and current-limiting resistance, divider resistance and current-limiting resistance are connected on metal contact and discharge between probe, the branched line in series with commutation diode again after hummer is in parallel with light emitting diode, branched line is connected in parallel on the two ends of divider resistance.The utility model has that structure is simple, easy to use, work efficiency is high and detect advantage accurately and reliably.
Description
Technical field
The utility model relates to the insulating property detection field of insulator, specifically a kind of sparking distance detecting device.
Background technology
The support wire making it of being mainly used for electric transmission line isolator insulate with shaft tower, and the quality of its insulating property is directly connected to the safe operation of circuit.At present mainly contain to have a power failure to the detection method of transmission line of electricity porcelain insulator insulating property and detect and live detection two kinds: having a power failure, to detect be in the uncharged situation of insulator, utilize insulation resistance monitor to measure resistance value between insulator two ends steel cap and steel pin, resistance be greater than regulations stipulate be namely judged to be qualified, being less than setting and being judged to be low value or null value, is faulty insulator; Live detection utilizes instrument to detect Insulators Used when insulator charged operation.Live detection, because carrying out under circuit normal operation, has and does not restrict by line outage plan, reduces line outage time and number of times, detects the advantage that flexibility ratio is large, therefore transmission line faultlocating insulator more employing live detection method.
The principle of live detection insulator utilizes between the sub-steel cap of good insulation and steel pin to there is voltage difference, inferior insulator both end voltage difference reduce or be zero principle to judge the good and bad degree of insulator.Insulator both end voltage difference mainly acts on little clearance by the live detection instrument of current use, if the breakdown meeting in clearance sends the discharging sound of " whip ", prove that insulator two ends exist voltage difference insulating property good, if clearance is not breakdown, discharge off sound, then prove insulator dielectric performance degradation.This instrument is just judged by discharging sound, is vulnerable to the impact of external environment, sometimes needs repeatedly to detect confirmation, inefficiency, meanwhile, can cause operating personnel's difficult judgment in situation as larger in ambient noise, the hearing difference between operating personnel also can affect the accuracy of judged result.
Utility model content
The technical problems to be solved in the utility model is to provide that a kind of structure is simple, easy to use, work efficiency is high and detects sparking distance detecting device accurately and reliably.
For solving the problems of the technologies described above, sparking distance detecting device of the present utility model comprises insulated substrate, be arranged on two metal contact of insulated substrate front end and be arranged on insulated substrate and the two electric discharge probes be electrically connected with two metal contact respectively, the needle point of electric discharge probe is oppositely arranged and forms discharging gap between needle point, its design feature is connected with Acoustooptic indicator between a metal contact wherein and electric discharge probe, Acoustooptic indicator comprises light emitting diode, hummer, commutation diode, divider resistance and current-limiting resistance, divider resistance and current-limiting resistance are connected on metal contact and discharge between probe, the branched line in series with commutation diode again after hummer is in parallel with light emitting diode, branched line is connected in parallel on the two ends of divider resistance.
Adopt said structure, metal contact, electric discharge probe and Acoustooptic indicator composition series circuit, discharging gap is equivalent to a switch, two metal contact contact with steel pin with the steel cap of insulator respectively, if insulator dielectric is functional, then there is voltage difference between steel cap and steel pin, this voltage difference is enough to discharging gap is punctured, now namely be equivalent to switch close, electric current passes through Acoustooptic indicator, reach the rated operational voltage of light emitting diode and hummer in the voltage difference at current-limiting resistance two ends, and make Acoustooptic indicator work send sound and light signal; If insulator dielectric performance degradation, then the voltage difference between steel cap and steel pin reduces, and when this voltage difference is not enough to make sparking distance puncture, be equivalent to switch and disconnect, then Acoustooptic indicator does not work; Voltage difference between the sub-steel cap of good insulation and steel pin is generally far longer than the rated operational voltage of light emitting diode and hummer, in Acoustooptic indicator, design divider resistance reach the effect of dividing potential drop and avoid causing because voltage is excessive indicator to damage, current-limiting resistance is set simultaneously and avoids by the electric current of indicator excessive; Light emitting diode and hummer rated voltage General Requirements are direct current, design commutation diode in circuit and reach AC rectification is become galvanic object.
The rearward end of described insulated substrate is connected with an insulating bar by universal joint.By universal joint, insulated substrate can multiple different angles be connected with insulating bar, thus staff can be facilitated to detect with the insulator of different angles arrangement.
Described insulated substrate is vertically connected with two support columns, the top correspondence of two support columns offers the tapped through hole of horizontally set, install a probe adjusting bolt in two tapped through holes respectively and the end of two probe adjusting bolts is oppositely arranged, two electric discharge probes are connected to the end of two probe adjusting bolts.By this structure, utilize probe adjusting bolt can adjust the gap of discharging between probe, thus this detecting device be can be used in the detection of different electric pressure electric transmission line isolator, the versatility of detecting device is stronger.
At least one metal contact described is rotatably installed on insulated substrate.By this mounting structure, the distance between two metal contact can conveniently adjust, thus adapts to the insulator of different size, and what two metal contact and insulator steel cap were contacted with steel pin is more reliable.Concrete rotation mounting structure can adopt: be vertically connected with contact adjusting bolt in the rear end of metal contact, and contact adjusting bolt spiral shell is contained on insulated substrate.
In sum, the utility model has that structure is simple, easy to use, work efficiency is high and detect advantage accurately and reliably.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is circuit theory schematic diagram of the present utility model.
Embodiment
With reference to accompanying drawing, sparking distance detecting device of the present utility model comprises insulated substrate 1, be arranged on two metal contact 2 of insulated substrate 1 front end and be arranged on insulated substrate 1 and the two electric discharge probes 3 be electrically connected with two metal contact 2 respectively, the needle point of electric discharge probe 3 is oppositely arranged and forms discharging gap 10 between needle point, Acoustooptic indicator 4 is connected with between a metal contact 2 wherein and electric discharge probe 3, Acoustooptic indicator 4 comprises light emitting diode 41, hummer 42, commutation diode 43, divider resistance 45 and current-limiting resistance 44, divider resistance 45 and current-limiting resistance 44 are connected on metal contact 2 and discharge between probe 3, branched line in series with commutation diode 43 again after hummer 42 is in parallel with light emitting diode 41, branched line is connected in parallel on the two ends of divider resistance 45.
In said structure, metal contact 2, electric discharge probe 3 and Acoustooptic indicator 4 form series circuit, discharging gap 10 is equivalent to a switch, two metal contact 2 contact with steel pin with the steel cap of insulator respectively, if insulator dielectric is functional, then there is voltage difference between steel cap and steel pin, this voltage difference is enough to discharging gap 10 is punctured, now namely be equivalent to switch close, electric current is by Acoustooptic indicator 4, when the voltage difference at current-limiting resistance 44 two ends reaches the rated operational voltage of light emitting diode 41 and hummer 42, and make Acoustooptic indicator 4 work send sound and light signal, if insulator dielectric performance degradation, then the voltage difference between steel cap and steel pin reduces, and when this voltage difference is not enough to make sparking distance puncture, be equivalent to switch and disconnect, then Acoustooptic indicator 4 does not work, voltage difference between the sub-steel cap of good insulation and steel pin is generally far longer than the rated operational voltage of light emitting diode 41 and hummer 42, in Acoustooptic indicator 4, design divider resistance 45 reach the work of dividing potential drop in order to avoid causing because voltage is excessive indicator to damage, current-limiting resistance 44 is set excessive to avoid by the electric current of indicator simultaneously, light emitting diode 41 and hummer 42 rated voltage General Requirements are direct current, design commutation diode 43 in circuit and AC rectification is become galvanic object.
With reference to accompanying drawing, the rearward end of insulated substrate 1 is connected with an insulating bar 6 by universal joint 5.By universal joint 5, insulated substrate 1 can multiple different angles be connected with insulating bar 6, thus staff can be facilitated to detect with the insulator of different angles arrangement.
With reference to accompanying drawing, insulated substrate 1 is vertically connected with two support columns 7, the top correspondence of two support columns 7 offers the tapped through hole of horizontally set, install a probe adjusting bolt 8 in two tapped through holes respectively and the end of two probe adjusting bolts 8 is oppositely arranged, two electric discharge probes 3 are connected to the end of two probe adjusting bolts 8.By this structure, utilize probe adjusting bolt 8 can adjust the gap of discharging between probe 3, thus this detecting device be can be used in the detection of different electric pressure electric transmission line isolator, the versatility of detecting device is stronger.With reference to accompanying drawing, at least one metal contact 2 is rotatably installed on insulated substrate 1.
With reference to accompanying drawing, the rear end of metal contact 2 is vertically connected with contact adjusting bolt 9, and contact adjusting bolt 9 spiral shell is contained on insulated substrate 1.By this mounting structure, the distance between two metal contact 2 can conveniently adjust, thus adapts to the insulator of different size, and what two metal contact 2 and insulator steel cap were contacted with steel pin is more reliable.Concrete rotation mounting structure can adopt: be vertically connected with contact adjusting bolt 9 in the rear end of metal contact 2, and contact adjusting bolt 9 spiral shell is contained on insulated substrate 1.
In sum, the utility model is not limited to above-mentioned embodiment.Those skilled in the art, under the prerequisite not departing from spirit and scope of the present utility model, can do some changes and modification.Protection domain of the present utility model should be as the criterion with claim of the present utility model.
Claims (5)
1. a sparking distance detecting device, comprise insulated substrate (1), be arranged on two metal contact (2) of insulated substrate (1) front end and be arranged on the upper and two electric discharge probes (3) be electrically connected with two metal contact (2) respectively of insulated substrate (1), the needle point of electric discharge probe (3) is oppositely arranged and forms discharging gap (10) between needle point, it is characterized in that being connected with Acoustooptic indicator (4) between a metal contact (2) wherein and electric discharge probe (3), Acoustooptic indicator (4) comprises light emitting diode (41), hummer (42), commutation diode (43), divider resistance (45) and current-limiting resistance (44), divider resistance (45) and current-limiting resistance (44) are connected on metal contact (2) and discharge between probe (3), after hummer (42) is in parallel with light emitting diode (41) again with commutation diode (43) branched line in series, branched line is connected in parallel on the two ends of divider resistance (45).
2. sparking distance detecting device as claimed in claim 1, is characterized in that the rearward end of described insulated substrate (1) is connected with an insulating bar (6) by universal joint (5).
3. sparking distance detecting device as claimed in claim 1, it is characterized in that described insulated substrate (1) being vertically connected with two support columns (7), the top correspondence of two support columns (7) offers the tapped through hole of horizontally set, install a probe adjusting bolt (8) in two tapped through holes respectively and the end of two probe adjusting bolts (8) is oppositely arranged, two electric discharge probes (3) are connected to the end of two probe adjusting bolts (8).
4. the sparking distance detecting device according to any one of claim 1-3, is characterized in that at least one metal contact (2) is rotatably installed on insulated substrate (1).
5. sparking distance detecting device as claimed in claim 4, it is characterized in that the rear end of described metal contact (2) is vertically connected with contact adjusting bolt (9), contact adjusting bolt (9) spiral shell is contained on insulated substrate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520486877.6U CN204719186U (en) | 2015-07-08 | 2015-07-08 | A kind of sparking distance detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520486877.6U CN204719186U (en) | 2015-07-08 | 2015-07-08 | A kind of sparking distance detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204719186U true CN204719186U (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520486877.6U Expired - Fee Related CN204719186U (en) | 2015-07-08 | 2015-07-08 | A kind of sparking distance detecting device |
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| Country | Link |
|---|---|
| CN (1) | CN204719186U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106707117A (en) * | 2016-12-07 | 2017-05-24 | 云南电网有限责任公司曲靖供电局 | Multi-electrode fast insulation detector |
| CN112269108A (en) * | 2020-09-23 | 2021-01-26 | 国网山东省电力公司潍坊供电公司 | Electronic insulation zero detection rod |
| CN112834874A (en) * | 2020-12-31 | 2021-05-25 | 国网山西省电力公司晋中供电公司 | Intelligent spark gap detector capable of automatically adsorbing and adjusting discharge gap |
-
2015
- 2015-07-08 CN CN201520486877.6U patent/CN204719186U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106707117A (en) * | 2016-12-07 | 2017-05-24 | 云南电网有限责任公司曲靖供电局 | Multi-electrode fast insulation detector |
| CN112269108A (en) * | 2020-09-23 | 2021-01-26 | 国网山东省电力公司潍坊供电公司 | Electronic insulation zero detection rod |
| CN112834874A (en) * | 2020-12-31 | 2021-05-25 | 国网山西省电力公司晋中供电公司 | Intelligent spark gap detector capable of automatically adsorbing and adjusting discharge gap |
| CN112834874B (en) * | 2020-12-31 | 2022-11-25 | 国网山西省电力公司晋中供电公司 | Intelligent spark gap detector capable of automatically adsorbing and adjusting discharge gap |
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Legal Events
| 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: 20151021 Termination date: 20180708 |
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| CF01 | Termination of patent right due to non-payment of annual fee |