CN206671439U - It is a kind of detection porcelain insulator whether the buzzing tester of null value - Google Patents
It is a kind of detection porcelain insulator whether the buzzing tester of null value Download PDFInfo
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- CN206671439U CN206671439U CN201720073793.9U CN201720073793U CN206671439U CN 206671439 U CN206671439 U CN 206671439U CN 201720073793 U CN201720073793 U CN 201720073793U CN 206671439 U CN206671439 U CN 206671439U
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- buzzing
- detection
- null value
- tester
- porcelain insulator
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Abstract
A kind of detection porcelain insulator whether the buzzing tester of null value, including probe, probe be connected with metal buzzer, and metal buzzer is connected with insulating bar, and public address equipment is provided with insulating bar.The utility model provide a kind of detection porcelain insulator whether the buzzing tester of null value, easy to carry, simple to operate, installation cost is cheap, reliability and durability and reduce work risk and improve efficiency.Detection results are fast obvious, and detection sound can adjust, and greatly reduce the interference that environment is brought.The utility model is consistent with Expected Results by simulating, verifying.
Description
Technical field
The utility model is related to a kind of power system detection device, particularly it is a kind of detect porcelain insulator whether null value
Buzzing tester.
Background technology
Later stage the 1950s, Canadian Qukbec hydroelectric boards begin to use buzzing method of testing to detect operation insulator
String.With the metal buzzer contact insulator steel cap with insulating bar and steel pin part and buzzing sound is produced, its sound
Intensity changes with the voltage's distribiuting of insulator chain.When there is the poor insulation period of the day from 11 p.m. to 1 a.m, the sound of its buzzing will change.According to
The situation of buzzer may determine that whether there is Faulty insulator.This Method And Principle it is simple and easy to operate but detection accuracy by
Line walking operating personnel differentiate the energy power restriction of intensity of sound, are easily disturbed by external sound, this method can not detect in addition
20k V ~ 30k V deterioration insulation can also be born.Based on this, whether this patent provides a kind of accurate detection porcelain insulator
The buzzing tester of null value, by increasing simple device on traditional insulating bar with metal buzzer, reach
Detecting porcelain insulator, whether clear increase buzzer is so as to lifting device measurement effect during null value.
Power system is exactly line insulator using most power equipments, and the porcelain insulator run in transmission line of electricity exists
In the presence of long-term mechanical force and electric field, insulating properties are caused to lose and turn into zero resistance insulator, the appearance of zero resistance insulator
Other normal insulation can be made to bear voltage rise, flashover easily occurs under high voltage, adverse weather condition, directly affects electricity
The safe operation of Force system, the at present detection of porcelain insulator mainly use following several method.
1, spark gaps detect：Because its simplicity it is easy-to-use, cheap the characteristics of, it is existing in work by more application
.Whether its operation principle is can be by between the spark on reference test bar using spread voltage existing on insulator in tested operation
Gap breakdown is criterion, to determine whether insulator deteriorates.Spark fork is producing pyrophoric moment equivalent to the insulation that will be detected
Sub- short circuit, there is the danger for causing insulator chain flashover.
2, bead electric discharges：This method is when the bead generation electric discharge phenomena at insulator both ends are connected to by measurement
Distance judges the voltage at insulator both ends, obtains the partial pressure situation of tested insulator indirectly, so as to judge tested insulator
It is whether normal.Though this method is simple to operate, both ends bead distance is frequently adjusted, and False Rate is larger.
3, voltage's distribiuting methods：And currently used detection method.It is that the voltage's distribiuting of insulator is measured,
Then corresponding measured value is calculated, compared with the measured value by obtained measurement result with the last time insulator string
Method judge inferior insulator, the calculating of this method is extremely complex, trouble.
4, supercritical ultrasonics technologies：When filthy or Faulty insulator insulation degradation, cause the increase of insulator surface shelf depreciation
When, with the release process of electric flux, pressure is produced to the medium of surrounding, so as to cause air vibration, causes acoustic emission to show
As.This method is more suitable for judging the more obvious shelf depreciation as caused by the reasons such as filth, to insulator deterioration, insulation resistance value
The early prediction of decline has certain difficulty.
5, infrared imaging methods：This method can ground detection insulator shelf depreciation and insulation reduce, more mainly examine
Survey shelf depreciation.The shortcomings that this method is：When the insulaion resistance of Faulty insulator is between 5 ~ 10MW, temperature change is failed to understand
It is aobvious, it is difficult to be distinguished by by infrared thermal imagery, check frequency be present.
6, ultraviolet image methods：When insulator surface discharges, according to the difference of electric-field intensity (or High Pressure Difference), meeting
Corona, flashover or electric arc are produced, wherein containing part ultraviolet light.Ultraviolet imager has observation straight compared with other detection means
See, the advantages that foresight is good, observed range is remote, be primarily adapted for use in the observation of shelf depreciation, it is difficult to do the early stage of Faulty insulator
Forecast, and it is expensive.
7, ultraviolet pulse detection methods：Essence is to detect the change that Faulty insulator causes insulator chain voltage's distribiuting, this
The form that kind change is changed by discharge time, electric discharge ultraviolet pulse accordingly changes shows, therefore can pass through ultraviolet detection
Instrument finds the deterioration condition of insulator, and makes early prediction.
8, electric field measurement methods：This method instrument is relatively simple, and very low, measurement point is required to external environments such as weather
It is more.But this method more relies on ranging accuracy based on calculating, different gantry-types are needed to establish electric field respectively
Model, therefore also have certain difficulty in actually promoting.
9, radio wave methods：When corona discharge occurs for poor insulator, the electromagnetic wave of certain frequency, radio can be sent
Ripple method is exactly to judge that tested insulator whether there is defect according to the direction of antenna and the intensity of electromagnetic wave that receive electromagnetic wave
's.Radio wave method has the advantages of equipment is simple, easy to operate, but its antijamming capability is very poor, and sensitivity is low.
10, insulaion resistance methods：It is after the Leakage Current for flowing through insulator both ends is measured by current sensor, with
Measurement result is transferred to information processing centre by the mode of wireless telecommunications to be entered row information and focuses on, so as to realize to insulator
Remote measurement.But the defects of this method is that a set of detection means is installed on each insulator string, cost is too high, is actually using
Middle user is difficult to bear, and the Maintenance and Repair of device must have a power failure and could carry out.
Various methods respectively have short length in summary, but these detection methods are all cumbersome, and purpose simply judges that porcelain is exhausted
Edge whether null value, and need not quantify detect.And complicated process detection process not only influences the operation of staff, and
Heavy and accurate detecting instrument also reduces work and pole-climbing efficiency, and additionally brings danger to work high above the ground.Based on this, this is specially
Profit provide a kind of accurate detection porcelain insulator whether the buzzing tester of null value, by carrying metal buzzer in traditional
Insulating bar on increase simple device, reach detection porcelain insulator whether clear increase buzzer during null value
So as to lifting device measurement effect.
Whether in null value, generally it is divided into two major parts in existing detection porcelain insulator：Qualitative detection and quantitative detection.
Although quantitatively detection data are accurate first, each method still has many deficiencies, inconvenience.Such as 1）Absolutely
The defects of edge electric-resistivity method is to install a set of detection means on each insulator string, and in actual use, cost is too high,
User is difficult to bear, and the Maintenance and Repair of device must have a power failure and could carry out. 2）Using made from laser dopper flowmeter vibratory drilling method
Instrument, it is bulky, heavy, use and repair that complicated, cost is high, invalid to uncracked isolator detecting etc., limitation
Its use range. 3）For the porcelain insulator of common glaze, its normal surface temperatures and poor quality insulate thermal infrared imager method
Sub- surface temperature differs only by 1 DEG C or so, it is difficult to detects null value, low resistance insulator.However, in actually detected porcelain insulator
Whether null value work in, it is not necessary to obtain specific numerical value, only require judge insulator whether null value, but quantitatively detect increase on the contrary
Extra work amount is added.
Furthermore be that qualitative detection is easy to carry, be the shortcomings that qualitative detection simple to operate but conventional in detection, as
The subjective judgement of the parameter of judgement, only staff, with very big error, disturbed greatly by environmental factor, it is easily mixed
Confuse.Omit.For example the sound of spark discharge can be flooded and apart from remote by the noise, sound of the wind, corona sound of surrounding, it is difficult to accurately sentence
It is disconnected.
Based on this, this patent provide a kind of accurate detection porcelain insulator whether the buzzing tester of null value, by
On traditional insulating bar with metal buzzer increase simple device, reach detection porcelain insulator whether null value
During clear increase buzzer so as to lifting device measurement effect.
The content of the invention
Technical problem to be solved in the utility model is to provide a kind of detection porcelain insulator, and whether the buzzing of null value is surveyed
Try instrument, the sound that metal buzzer is sent is amplified using public address equipment, makes the effect promoting of detection, just with staff
Judge insulator whether null value.
In order to solve the above technical problems, technical scheme is used by the utility model：One kind detects porcelain insulator
The buzzing tester of no null value, including probe, probe are connected with metal buzzer, and metal buzzer is connected with insulating bar,
Public address equipment is provided with insulating bar.
Preferably, the public address equipment includes microphone, and microphone is connected by wire and loudspeaker and peripheral earphone socket
Connect.
Preferably, the microphone is in metal buzzer.
Preferably, the insulating bar is provided with battery case, and battery case is used to place battery, powered for device, also
Including the closure being engaged with battery case.
Preferably, the volume control potentiometer for adjusting volume is additionally provided with the insulating bar.
Preferably, the insulating bar is connected with metal buzzer by the way of be hinged.
Preferably, the microphone is the microphone with amplifier.
The utility model provide it is a kind of detection porcelain insulator whether the buzzing tester of null value, it is easy to carry, operation letter
Single, installation cost is cheap, reliability and durability and reduce work risk and improve efficiency.Detection results are fast obvious, detection sound
Sound can adjust, and greatly reduce the interference that environment is brought.The utility model is consistent with Expected Results by simulating, verifying.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples：
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the utility model insulating bar tail structure schematic diagram；
Fig. 3 is the utility model insulating bar polycrystalline substance schematic diagram；
In figure：1- probes, 2- metal buzzers, 3- insulating bars, 4- microphones, 5- wires, 6- loudspeakers, 7- volumes
Regulate and control potentiometer, 8- peripheral earphone sockets, 9- battery cases, 91- closures.
Embodiment
As Figure 1-3, a kind of detection porcelain insulator whether the buzzing tester of null value, including probe 1, probe 1 with
Metal buzzer 2 is connected, and metal buzzer 2 is connected with insulating bar 3, and public address equipment is provided with insulating bar 3.
Preferably, the public address equipment includes microphone 4, and microphone 4 is inserted by wire 5 and loudspeaker 6 and peripheral earphone
Mouth 8 connects.
Preferably, the microphone 4 is in metal buzzer 2.
Preferably, the insulating bar 3 is provided with battery case 9, and battery case 9 is used to place battery, powered for device,
Also include the closure 91 being engaged with battery case 9.
Preferably, the volume control potentiometer 7 for adjusting volume is additionally provided with the insulating bar 3.
Preferably, the insulating bar 3 is connected with metal buzzer 2 by the way of be hinged.
Preferably, the microphone 4 is the microphone with amplifier.
When carrying out detection work, volume is first adjusted to open public address equipment and substantially regulate and control position to suitable volume, then
Holding insulating bar 3 makes the probe 1 of metal buzzer 2 contact insulator steel cap and steel pin part and produces buzzing sound, works
Untill personnel hear that can also carry out volume after sound with volume control position adjusts allow to clearly substantially hear buzzer again, so
After carry out each insulator zero value detection, buzzing sound intensity changes with the voltage's distribiuting of insulator chain, when there is poor insulation
The period of the day from 11 p.m. to 1 a.m, the sound of its buzzing will change.It may determine that whether there is Faulty insulator according to the situation of buzzer, Faulty insulator
Then need to change.
When carrying out detection work, can also headphone plug insertion insulating bar 3 bottom socket, staff wears
After upper earphone, volume is first adjusted to open public address equipment and substantially regulate and control position to suitable volume, then hold insulating bar 3 to make
The probe 1 of metal buzzer 2 contacts insulator steel cap and steel pin part and produces buzzing sound, and staff may be used also after hearing sound
With carried out with volume control position volume adjust again allow to clearly substantially hear buzzer untill, then carry out each insulator zero
Value detection, buzzing sound intensity change with the voltage's distribiuting of insulator chain, and when there is the poor insulation period of the day from 11 p.m. to 1 a.m, the sound of its buzzing will
Change.It may determine that whether there is Faulty insulator according to the situation of buzzer, Faulty insulator then needs to change.
The above embodiments are only optimal technical scheme of the present utility model, and are not construed as limit of the present utility model
System, the technical scheme that the scope of protection of the utility model should be recorded with claim, including the technical scheme that claim is recorded
The equivalents of middle technical characteristic are protection domain.Equivalent substitution i.e. within this range is improved, also in the utility model
Protection domain within.
Claims (7)
1. it is a kind of detection porcelain insulator whether the buzzing tester of null value, it is characterised in that：Including probe（1）, probe（1）With
Metal buzzer（2）Connection, metal buzzer（2）With insulating bar（3）Connection, in insulating bar（3）It is provided with and amplifies
Equipment.
2. according to claim 1 it is a kind of detection porcelain insulator whether the buzzing tester of null value, it is characterised in that：It is described
Public address equipment includes microphone（4）, microphone（4）Pass through wire（5）With loudspeaker（6）And peripheral earphone socket（8）Connection.
3. according to claim 2 it is a kind of detection porcelain insulator whether the buzzing tester of null value, it is characterised in that：It is described
Microphone（4）Located at metal buzzer（2）It is interior.
4. according to claim 2 it is a kind of detection porcelain insulator whether the buzzing tester of null value, it is characterised in that：It is described
Insulating bar（3）It is provided with battery case（9）, battery case（9）For placing battery, powered for device, in addition to and battery
Groove（9）The closure being engaged（91）.
5. according to claim 2 it is a kind of detection porcelain insulator whether the buzzing tester of null value, it is characterised in that：It is described
Insulating bar（3）On be additionally provided with volume control potentiometer for adjusting volume（7）.
6. according to claim 1 it is a kind of detection porcelain insulator whether the buzzing tester of null value, it is characterised in that：It is described
Insulating bar（3）With metal buzzer（2）Connected by the way of be hinged.
7. according to Claims 2 or 3 it is a kind of detection porcelain insulator whether the buzzing tester of null value, it is characterised in that：
The microphone（4）For the microphone with amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720073793.9U CN206671439U (en) | 2017-01-21 | 2017-01-21 | It is a kind of detection porcelain insulator whether the buzzing tester of null value |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720073793.9U CN206671439U (en) | 2017-01-21 | 2017-01-21 | It is a kind of detection porcelain insulator whether the buzzing tester of null value |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206671439U true CN206671439U (en) | 2017-11-24 |
Family
ID=60379195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720073793.9U Expired - Fee Related CN206671439U (en) | 2017-01-21 | 2017-01-21 | It is a kind of detection porcelain insulator whether the buzzing tester of null value |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206671439U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108777825A (en) * | 2018-05-31 | 2018-11-09 | 出门问问信息科技有限公司 | Earphone fixture |
-
2017
- 2017-01-21 CN CN201720073793.9U patent/CN206671439U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108777825A (en) * | 2018-05-31 | 2018-11-09 | 出门问问信息科技有限公司 | Earphone fixture |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171124 Termination date: 20190121 |