CN206638776U - Zero resistance insulator detects instrument - Google Patents
Zero resistance insulator detects instrument Download PDFInfo
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- CN206638776U CN206638776U CN201720439349.4U CN201720439349U CN206638776U CN 206638776 U CN206638776 U CN 206638776U CN 201720439349 U CN201720439349 U CN 201720439349U CN 206638776 U CN206638776 U CN 206638776U
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- electric discharge
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- insulator
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- 239000012212 insulator Substances 0.000 title claims abstract description 43
- 239000002184 metal Substances 0.000 claims abstract description 48
- 229910052751 metal Inorganic materials 0.000 claims abstract description 48
- 239000000523 sample Substances 0.000 claims abstract description 29
- 230000007246 mechanism Effects 0.000 claims abstract description 7
- 238000007599 discharging Methods 0.000 claims description 12
- 150000002739 metals Chemical class 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 13
- 238000010276 construction Methods 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 description 42
- 239000010959 steel Substances 0.000 description 42
- 229910052573 porcelain Inorganic materials 0.000 description 9
- 238000009413 insulation Methods 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 238000006731 degradation reaction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 2
- 241000256844 Apis mellifera Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Abstract
It the utility model is related to a kind of zero resistance insulator detection instrument, its two metal contact for including insulating bar and being arranged at the top of insulating bar, two electric discharge probes and Acoustooptic indicator, Acoustooptic indicator is connected between one of metal contact and electric discharge probe, a lead is hinged with the top of insulating bar, metal contact is towards the open elastic clip in side, two metal contacts are connected to the side of lead by a support arm respectively, two support arms are inclined upwardly setting, wherein a support arm is fixed in the top of lead, another support arm is slidably connected on lead and positioned by retaining mechanism；Electric discharge probe and Acoustooptic indicator are arranged at the top of lead；The top ends of lead are hinged with camera by support, and the bottom of insulating bar is provided with the display screen electrically connected with camera.The utility model has the advantages of simple in construction, manipulation is flexible and detects accurately and reliably.
Description
Technical field
Isolator detecting field is the utility model is related to, specifically a kind of zero resistance insulator detection instrument.
Background technology
Electric transmission line isolator is primarily used to support wire and is allowed to straight with shaft tower insulation, the quality of its insulating properties
Connect the safe operation for being related to circuit.Zero resistance insulator refers to that the resistance value between insulator both ends steel cap and steel pin is less than regulation
Value, it is faulty insulator.Because insulator uses out of doors, in the environmental attack effect and long-term such as drench with rain of exposing to the weather
Under high pressure effect, the part porcelain vase of insulator is easily damaged, and causes part porcelain vase to lose insulation effect, if changed not in time,
Then whole insulator can be caused to lose insulation function, cause security incident.
In order to ensure power supply safety, it is necessary to carry out live detection to the insulator under use state, live detection can be
Carried out in the case of circuit normal operation, can guarantee that electric power non-interruptible supply.The principle of live detection insulator is：Good is exhausted
Voltage difference between edge steel cap and steel pin be present, inferior insulator both end voltage difference reduces or is zero.Judge by the principle
The good and bad degree of insulator.
The live detection instrument used at present mainly acts on insulator both end voltage difference on small the air gap, if empty
The breakdown discharging sound that can send " whip " in gas gap, it was demonstrated that it is good that insulator both ends have a voltage difference insulating properties, if air
The not breakdown then discharge off sound in gap, then prove insulator dielectric performance degradation.This kind of instrument is simply by the sound for listening electric discharge
To judge, it is vulnerable to the influence of external environment, needs to be repeatedly detected confirmation sometimes, operating efficiency is low, meanwhile, such as ambient noise
It is larger, difficult judgment can be caused.
Patent No. " 201520486877.6 ", entitled " a kind of spark gap detector " utility model patent in
A kind of instrument that can be used for detecting zero resistance insulator is disclosed, the detector installs two metal contacts on insulated substrate,
Metal contact be respectively used to contact insulator steel cap and steel pin, also set up on insulated substrate two respectively with two metal contacts
The electric discharge probe of electrical connection, two electric discharge probes between discharging gap is set.Discharging gap is equivalent to a switch, if insulator
Insulating properties are good, then voltage difference be present between steel cap and steel pin, and the voltage difference is enough to puncture discharging gap, now i.e. suitable
Closed in switch, circuit turn-on after switch closure, the Acoustooptic indicator work in circuit, send sound and light signal.It can be seen that the detection
Device specially sets the Acoustooptic indicator with acousto-optic warning function, does not spend and listens discharging sound, the reliability and accuracy of judgement are equal
It increased.But in concrete operations, also there is following defect in the detector：1）Insulator is layered for multiple umbellate form porcelain vases
The structure of arrangement, last layer steel pin are blocked with the position that next layer of steel cap is connected by the porcelain vase of umbrella, and therefore, metal contact needs
Tilting insertion could contact with the steel cap and steel pin of correspondence position, because the width of insulated substrate is certain, although two metals touch
Head can use the structure of rotational installation, and still, under the limitation of insulator layer structure, the distance between two metal contacts can
The space very little of adjustment, it is also easy to contact by mistake with adjacent porcelain vase during adjustment, influences testing result, therefore, the detector is only
It can be detected for a kind of insulator of model, versatility is poor；2）Metal contact uses the structure of probe-type, in contact steel
When pin or steel cap, easily there is loose contact, cause detection structure unreliable；3）During detection, staff holds insulating bar
Bottom, and a whole set of structure on insulated substrate and insulated substrate is respectively positioned on insulating bar top, when the length of insulating bar is longer,
Staff can not accurately be operated, and false touch easily occurs and touches accident, potential safety hazard be present.
Utility model content
The technical problems to be solved in the utility model be to provide it is a kind of it is simple in construction, manipulation is flexible, detection accurately may be used
The zero resistance insulator detection instrument leaned on.
In order to solve the above technical problems, zero resistance insulator detection kit of the present utility model includes insulating bar and is arranged on
Two metal contacts, two electric discharge probes and Acoustooptic indicator at the top of insulating bar, two metal contacts are discharged with two respectively
Probe is electrically connected, and the needle point of two electric discharge probes is oppositely arranged and discharging gap is formed between needle point, and Acoustooptic indicator is connected to
Between one of metal contact and electric discharge probe, it, which is structurally characterized in that at the top of the insulating bar, is hinged with a lead,
Metal contact is to be connected to the one of lead by a support arm respectively towards the open elastic clip in side, two metal contacts
Side, two support arms are inclined upwardly setting, wherein a support arm is fixed in the top of lead, another support arm is slidably connected at
Positioned on lead and by retaining mechanism；Electric discharge probe and Acoustooptic indicator are arranged at the top of lead；The top of lead
End is hinged with camera by support, and the bottom of insulating bar is provided with the display screen electrically connected with camera.
Using said structure, on the basis of existing detector, the concrete structure and its mounting structure of metal contact are entered
Row improves：1）Metal contact uses the structure of elastic clip, can be contacted with the steel cap or steel pin of insulator more abundant, ensures to be electrically connected
The reliability connect, so as to increase the reliability of testing result；2）Metal contact is installed by support arm, and support arm is set using being inclined upwardly
The structure put, the bottom of umbrella porcelain vase can be more easily stretched into, so as to effectively avoid false touch from touching phenomenon；3）A wherein branch
Arm is using the structure that is slidably installed so that the spacing between two metal contacts can be adjusted flexibly, adapt to various shapes and
The porcelain vase of size.In addition to that mentioned above, also set camera, bottom that display screen is set at top, gathered in real time by camera
Image information at the insulator of top, and show that operating personnel can accurately be grasped at a distance with apparent on a display screen
Make.
Branch arm body of the support arm including the setting that is inclined upwardly and the extension arm for being hinged on branch arm body top ends, metal
Contact is arranged on the overhanging end of extension arm.Support arm uses the structure that two parts are hinged, can by adjusting two-part hinge angle
With the position of more flexible adjustment metal contact, so as to be further ensured that metal contact can fully contact with steel cap or steel pin, and
More effectively false touch can be avoided to touch.
The top ends of the branch arm body are provided with the illuminating lamp set outwardly.Set illuminating lamp can be to the steel pin of insulator
It is illuminated with steel caps position, ensures that the image of camera collection is apparent, be further ensured that the accuracy of operation.
Sliding sleeve is slidably fitted with the lead, underlying support arm is slidably mounted on lead by sliding sleeve,
The locking positioning mechanism includes the clamping screw being arranged on sliding sleeve.The knot that is slidably installed coordinated using sliding sleeve and clamping screw
Structure, it is simple in construction, it is easy to operate.
Box body is installed, electric discharge probe and Acoustooptic indicator are installed in box body, and acousto-optic refers at the top of the lead
Show that device includes light emitting diode, buzzer, commutation diode, divider resistance and current-limiting resistance, divider resistance and current-limiting resistance string
Be associated between metal contact and electric discharge probe, buzzer it is in parallel with light emitting diode afterwards again with series point of commutation diode
Branch line, branched line are connected in parallel on the both ends of divider resistance；Buzzer and light emitting diode are arranged in the side wall of box body.It is above-mentioned
In structure, metal contact, electric discharge probe and Acoustooptic indicator composition series circuit, discharging gap are equivalent to one and switched, two
Metal contact contacts with the steel cap and steel pin of insulator respectively, if insulator dielectric is functional, is deposited between steel cap and steel pin
In voltage difference, the voltage difference is enough to puncture discharging gap, now that is, switch closure, electric current by Acoustooptic indicator,
Voltage difference at current-limiting resistance both ends reaches the rated operational voltage of light emitting diode and buzzer, and Acoustooptic indicator is worked
Send sound and light signal；If insulator dielectric performance degradation, the voltage difference between steel cap and steel pin reduces, when this voltage difference deficiency
During so that spark gap puncturing, equivalent to switching off, then Acoustooptic indicator does not work.Between the sub- steel cap of good insulation and steel pin
Voltage difference be generally far larger than the rated operational voltage of light emitting diode and buzzer, partial pressure electricity is designed in Acoustooptic indicator
Resistance have the function that partial pressure and avoid because voltage is excessive and caused by indicator damage, while current-limiting resistance is set and avoids passing through finger
Show that the electric current of device is excessive；Light emitting diode and buzzer rated voltage typically require to be direct current, design rectification two in circuit
Pole pipe and reach the purpose by AC rectification into direct current.Box body is set to be played a protective role to the circuit structure of inside,
Buzzer and light emitting diode are arranged in the side wall of box body, facilitate personal observations.
The bottom of the insulating bar connects a support block by universal joint, and being connected with support block can tie in operator
The waistband of member's waist.Waistband is set to be used to borrow power to support, personnel can support the weight of whole detector by the strength of waist,
Especially in the case where insulation pole length is longer, operation can be more convenient.
In summary, the utility model has the advantages of simple in construction, manipulation is flexible and detects accurately and reliably.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description：
Fig. 1 is structural representation of the present utility model；
Fig. 2 is circuit principle structure schematic diagram of the present utility model.
Embodiment
Referring to the drawings, zero resistance insulator detection kit of the present utility model includes insulating bar 1 and is arranged on insulating bar 1 and pushes up
Two metal contacts 2, two electric discharge probes 3 and the Acoustooptic indicators in portion, two metal contacts 2 respectively with two electric discharge probes 3
Electrical connection, the needle point of two electric discharge probes 3 are oppositely arranged and discharging gap are formed between needle point, and Acoustooptic indicator connects wherein
Between one metal contact 2 and electric discharge probe 3, the top of insulating bar 1 is hinged with a lead 4, and metal contact 2 is towards one
The open elastic clip in side, two metal contacts 2 are connected to the side of lead 4 by a support arm 5 respectively, and two support arms 5 are equal
Be inclined upwardly setting, wherein a support arm 5 is fixed in the top of lead 4, another support arm 5 is slidably connected on lead 4
And positioned by retaining mechanism；Electric discharge probe 3 and Acoustooptic indicator are arranged at the top of lead 4；The top ends of lead 4 are led to
Cross support and be hinged with camera 6, the bottom of insulating bar 1 is provided with the display screen 7 electrically connected with camera 6.
In said structure, on the basis of existing detector, concrete structure and its mounting structure to metal contact 2 are carried out
Improve, be embodied in following several respects：1）Metal contact uses the structure of elastic clip, can be with the steel cap or steel pin of insulator
Contact is more abundant, ensures the reliability of electrical connection, so as to increase the reliability of testing result；2）Metal contact 2 is pacified by support arm 5
Dress, support arm 5 use the structure for the setting that is inclined upwardly, and the bottom of umbrella porcelain vase can be more easily stretched into, so as to effectively avoid
Phenomenon is touched in false touch；3）Wherein support arm 5 is using the structure being slidably installed so that spacing between two metal contacts 2 can be with
It is adjusted flexibly, adapts to the porcelain vase of a variety of shapes and sizes.In addition to that mentioned above, also camera 6, bottom is set to set at top
Display screen 7, pass through the image information at the insulator of collection top, and being shown on display screen 7, operating personnel in real time of camera 6
Remote-controlled operation can be accurately carried out with apparent.
Referring to the drawings, support arm 5 include be inclined upwardly setting branch arm body 51 and be hinged on the top ends of branch arm body 51
Extension arm 52, metal contact 2 are arranged on the overhanging end of extension arm 52.The structure that support arm 5 is hinged using two parts, pass through regulation two
Partial hinge angle, can be with the position of more flexible adjustment metal contact 2, so as to be further ensured that the energy of metal contact 2 and steel
Cap or steel pin fully contact, and more effectively false touch can be avoided to touch.
Referring to the drawings, the top ends of branch arm body 51 are provided with the illuminating lamp 8 set outwardly.Set illuminating lamp 8 can be to exhausted
The steel pin of edge and steel caps position are illuminated, and are ensured that the image of camera collection is apparent, are further ensured that the accurate of operation
Property.
Referring to the drawings, sliding sleeve 9 is slidably fitted with lead 4, underlying support arm 5 is slidably mounted on by sliding sleeve 9
On lead 4, locking positioning mechanism includes the clamping screw 10 being arranged on sliding sleeve 9.Coordinated using sliding sleeve 9 and clamping screw 10
The structure that is slidably installed, it is simple in construction, it is easy to operate.
Referring to the drawings, the top of lead 4 is provided with box body 11, and electric discharge probe 3 and Acoustooptic indicator are installed in box body
In 11, Acoustooptic indicator includes light emitting diode 12, buzzer 13, commutation diode 14, divider resistance 15 and current-limiting resistance 16,
Divider resistance 15 and current-limiting resistance 16 are connected between metal contact 2 and electric discharge probe 3, and buzzer 13 and light emitting diode 12 are simultaneously
The both ends of divider resistance 15 are connected in parallel on after connection with 14 branched line in series of commutation diode, branched line again；Buzzer
13 and light emitting diode 12 be arranged on box body 11 side wall on.In said structure, metal contact 2, electric discharge probe 3 and acousto-optic instruction
Device forms series circuit, and discharging gap is equivalent to a switch 31, two metal contacts 2 steel cap and steel pin with insulator respectively
, if insulator dielectric is functional, voltage difference be present between steel cap and steel pin, the voltage difference is enough to hit discharging gap in contact
Wear, now that is, the closure of switch 31, for electric current by Acoustooptic indicator, the voltage difference at the both ends of current-limiting resistance 16 reaches luminous
The rated operational voltage of diode 12 and buzzer 13, and Acoustooptic indicator work is sent sound and light signal；If insulator dielectric
Performance degradation, then the voltage difference reduction between steel cap and steel pin, when this voltage difference is insufficient to allow spark gap to puncture, equivalent to
Switch 31 disconnects, then Acoustooptic indicator does not work.Voltage difference between the sub- steel cap of good insulation and steel pin is generally far larger than sent out
The rated operational voltage of optical diode and buzzer, design divider resistance has the function that partial pressure and avoided in Acoustooptic indicator
Because voltage is excessive and caused by indicator damage, while the electric current for setting current-limiting resistance 16 and avoiding passing through indicator is excessive；It is luminous
It is direct current that diode 12 and the rated voltage of buzzer 13, which typically require, in circuit design commutation diode 14 and reaching to hand over
Electric rectification is flowed into the purpose of direct current.Foregoing circuit structure is prior art, is not being repeated again.In the utility model,
Electric discharge probe 3 and Acoustooptic indicator are arranged in box body 11, box body 11 can play a protective role to the circuit structure of inside, honeybee
Ring device 13 and light emitting diode 12 are arranged in the side wall of box body 11, facilitate personal observations.
Referring to the drawings, the bottom of insulating bar 1 connects a support block 17 by universal joint, is connected with and can tie in support block 17
It is tied to the waistband 18 of operating personnel's waist.Waistband 18 is set to be used to borrow power to support, personnel can support whole by the strength of waist
The weight of individual detector, insulating bar 1 is the structure of length adjustable, in the case where the length of insulating bar 4 is longer, sets waistband energy
More convenient operation, reduces labor intensity.
In summary, the utility model is not limited to above-mentioned embodiment.Those skilled in the art, this reality is not being departed from
On the premise of with new spirit and scope, some change and modification can be done.The scope of protection of the utility model should be with this reality
It is defined with new claim.
Claims (6)
1. a kind of zero resistance insulator detects instrument, including insulating bar（1）And it is arranged on insulating bar（1）Two metals at top touch
Head（2）, two pieces electric discharge probes（3）And Acoustooptic indicator, two metal contacts（2）Respectively with two electric discharge probes（3）Electrical connection,
Two electric discharge probes（3）Needle point be oppositely arranged and discharging gap formed between needle point, Acoustooptic indicator is connected to one of them
Metal contact（2）With the probe that discharges（3）Between, it is characterized in that the insulating bar（1）Top be hinged with a lead（4）,
Metal contact（2）For towards the open elastic clip in side, two metal contacts（2）Pass through a support arm respectively（5）It is connected to and leads
Xiang Zhu（4）Side, two support arms（5）Be inclined upwardly setting, wherein a support arm（5）It is fixed in lead（4）Top,
Another support arm（5）It is slidably connected at lead（4）Above and by retaining mechanism position；The electric discharge probe（3）Indicated with acousto-optic
Device is arranged at lead（4）Top；Lead（4）Top ends camera is hinged with by support（6）, insulating bar（1）
Bottom be provided with and camera（6）The display screen of electrical connection（7）.
2. zero resistance insulator as claimed in claim 1 detects instrument, it is characterized in that the support arm（5）Set including being inclined upwardly
Branch arm body（51）Be hinged on branch arm body（51）The extension arm of top ends（52）, metal contact（2）Installed in extension arm
（52）Overhanging end.
3. zero resistance insulator as claimed in claim 2 detects instrument, it is characterized in that the branch arm body（51）Top ends peace
Equipped with the illuminating lamp set outwardly（8）.
4. zero resistance insulator as claimed in claim 1 detects instrument, it is characterized in that the lead（4）On be slidably fitted with cunning
Set（9）, underlying support arm（5）Pass through sliding sleeve（9）It is slidably mounted on lead（4）On, the locking positioning mechanism includes
Installed in sliding sleeve（9）On clamping screw（10）.
5. zero resistance insulator as claimed in claim 1 detects instrument, it is characterized in that the lead（4）Top box is installed
Body（11）, discharge probe（3）Box body is installed in Acoustooptic indicator（11）Interior, Acoustooptic indicator includes light emitting diode
（12）, buzzer（13）, commutation diode（14）, divider resistance（15）And current-limiting resistance（16）, divider resistance（15）With current limliting
Resistance（16）It is connected on metal contact（2）With electric discharge probe（3）Between, buzzer（13）With light emitting diode（12）After parallel connection
Again with commutation diode（14）Branched line in series, branched line are connected in parallel on divider resistance（15）Both ends；Buzzer
（13）And light emitting diode（12）Installed in box body（11）Side wall on.
6. zero resistance insulator as claimed in claim 1 detects instrument, it is characterized in that the insulating bar（1）Bottom pass through it is universal
Section one support block of connection（17）, support block（17）On be connected with the waistband that can be tied in operating personnel's waist（18）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720439349.4U CN206638776U (en) | 2017-04-25 | 2017-04-25 | Zero resistance insulator detects instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720439349.4U CN206638776U (en) | 2017-04-25 | 2017-04-25 | Zero resistance insulator detects instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206638776U true CN206638776U (en) | 2017-11-14 |
Family
ID=60246133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720439349.4U Expired - Fee Related CN206638776U (en) | 2017-04-25 | 2017-04-25 | Zero resistance insulator detects instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206638776U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107330A (en) * | 2017-12-14 | 2018-06-01 | 国网重庆市电力公司电力科学研究院 | A kind of insulator leakage current and zero-value detection device |
| CN108646155A (en) * | 2018-07-18 | 2018-10-12 | 国网河南省电力公司南阳供电公司 | A kind of Portable combined insulator hydrophobic system safety testing device |
| CN109470924A (en) * | 2018-11-26 | 2019-03-15 | 浙江宝利特新能源股份有限公司 | A kind of photovoltaic back film resistance tester |
| CN111965429A (en) * | 2020-08-24 | 2020-11-20 | 中国南方电网有限责任公司超高压输电公司广州局 | Auxiliary device for quickly detecting insulation resistance of ceramic insulator |
| 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 |
| CN112290241A (en) * | 2020-10-16 | 2021-01-29 | 广西电网有限责任公司贵港供电局 | Earth connection indicating device of adjustable installation |
| 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 |
| CN113125834A (en) * | 2021-03-17 | 2021-07-16 | 广西电网有限责任公司电力科学研究院 | Porcelain insulator voltage detection flexible device |
| CN114910760A (en) * | 2022-06-14 | 2022-08-16 | 国网山东省电力公司高唐县供电公司 | Automatic zero detection adjusting device for insulator of power transmission line |
| CN117970060A (en) * | 2023-12-01 | 2024-05-03 | 杭州明韵科技有限公司 | Zero value detection creeping robot for insulator string |
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2017
- 2017-04-25 CN CN201720439349.4U patent/CN206638776U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107330A (en) * | 2017-12-14 | 2018-06-01 | 国网重庆市电力公司电力科学研究院 | A kind of insulator leakage current and zero-value detection device |
| CN108646155A (en) * | 2018-07-18 | 2018-10-12 | 国网河南省电力公司南阳供电公司 | A kind of Portable combined insulator hydrophobic system safety testing device |
| CN109470924B (en) * | 2018-11-26 | 2024-06-11 | 浙江宝利特新能源股份有限公司 | Photovoltaic back film resistance tester |
| CN109470924A (en) * | 2018-11-26 | 2019-03-15 | 浙江宝利特新能源股份有限公司 | A kind of photovoltaic back film resistance tester |
| CN111965429A (en) * | 2020-08-24 | 2020-11-20 | 中国南方电网有限责任公司超高压输电公司广州局 | Auxiliary device for quickly detecting insulation resistance of ceramic insulator |
| 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 |
| CN112290241A (en) * | 2020-10-16 | 2021-01-29 | 广西电网有限责任公司贵港供电局 | Earth connection indicating device of adjustable installation |
| 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 |
| CN113125834B (en) * | 2021-03-17 | 2023-06-02 | 广西电网有限责任公司电力科学研究院 | Porcelain insulator voltage detection flexible device |
| CN113125834A (en) * | 2021-03-17 | 2021-07-16 | 广西电网有限责任公司电力科学研究院 | Porcelain insulator voltage detection flexible device |
| CN114910760A (en) * | 2022-06-14 | 2022-08-16 | 国网山东省电力公司高唐县供电公司 | Automatic zero detection adjusting device for insulator of power transmission line |
| CN114910760B (en) * | 2022-06-14 | 2023-08-25 | 国网山东省电力公司高唐县供电公司 | Automatic zero-detection adjusting device for insulator of power transmission line |
| CN117970060A (en) * | 2023-12-01 | 2024-05-03 | 杭州明韵科技有限公司 | Zero value detection creeping robot for insulator string |
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