CN202975125U - Auxiliary electricity testing device for grounding - Google Patents
Auxiliary electricity testing device for grounding Download PDFInfo
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- CN202975125U CN202975125U CN 201220613168 CN201220613168U CN202975125U CN 202975125 U CN202975125 U CN 202975125U CN 201220613168 CN201220613168 CN 201220613168 CN 201220613168 U CN201220613168 U CN 201220613168U CN 202975125 U CN202975125 U CN 202975125U
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Abstract
The utility model provides an auxiliary electricity testing device for grounding, which comprises an electricity-approaching induction module, a processing module, a voltage class selective switch, a power supply module and an alarm output module. The process module is connected with the electricity-approaching induction module, the voltage class selective switch and the alarm output module respectively. The power supply module is connected with the electricity-approaching induction module and the processing module respectively. The electricity-approaching induction module is arranged at a top end of a ground chip of a ground wire. The electricity-approaching induction module performs an electricity approaching test based on a safe distance set up by the voltage class selective switch and sends a trigger signal to the processing module after the distance between the ground wire and an electrified body is tested to reach to the safe distance, the processing module sends a drive signal, and the drive signal is transmitted to the alarm output module for caution output. The auxiliary electricity testing device can synchronously carry out a second electricity testing when a power supply unit is grounded in power-off construction, so that unexpected electric shock and live-line grounding accidents are prevented.
Description
Technical field
The utility model relates to the auxiliary electroscopic device in a kind of power safety technique field, particularly a kind of ground wire.
Background technology
Along with the develop rapidly of power grid construction in recent years, power supply enterprise all carries out power grid construction significantly, and is more and more higher to the requirement of power supply reliability simultaneously.The operation in good health of grid equipment is the important leverage of power supply safety.In order to improve the grid health level, need to carry out Maintenance and Repair to equipment.Before service work, first to take to have a power failure to power failure equipments, the safing technical measures of electrical verification, hanging earthing conductor.But in real work, can be because staff's awareness of safety to be thin, the reasons such as field apparatus complexity cause the security incident of live connection of ground wire to occur, and bring massive losses to enterprise and family.
The contact electroscope that adopts at present be by detection flow through this electroscope over the ground the mode of coming instructed voltage whether to exist of the electric current in stray capacitance carry out electrical verification, direct hanging earthing conductor after electrical verification.There is the possibility of anti-power transmission due to circuit, therefore existing contact electroscope can not reflect from electrical verification finish to hanging earthing conductor during this period of time in equipment charged due to anti-power transmission, more can not stop due to habitual violating the regulations or the error checking electricity that error causes of staff may.The ground wire, the insulating bar that also have only a few to have the alarming in short range of electric power function, have because its bulky, can not use in the high-tension switch cabinet casing at the circuit place of hanging earthing conductor; What have will be placed on the electroscope of nearly electric inductor the back of earthing clamp, because earthing clamp is conductor and ground connection, so that affect the sensitivity of nearly electric inductor, can't play the effect of alarming in short range of electric power.
The utility model content
The utility model is for the prior art problem of prevention live connection of ground wire fully, provide a kind of ground wire to assist electroscopic device, this device can synchronously carry out electrical verification for the second time when power-supply unit power cut construction hanging earthing conductor, the generation of prevent an accident electric shock and live connection of ground wire accident.
The technical solution of the utility model is as follows:
A kind of ground wire is assisted electroscopic device, it is characterized in that, comprise nearly electro-induction module, processing module, electric pressure selector switch, power module and alarm output module, described processing module is connected with alarm output module with nearly electro-induction module, electric pressure selector switch respectively, described power module is connected with processing module with nearly electro-induction module respectively, and described nearly electro-induction module is arranged on the top of the earthing clamp of ground wire; The safe distance that described nearly electro-induction module is set according to the electric pressure selector switch carries out nearly electro-detection and sends trigger pip to processing module in the time that distance between ground wire and electrified body reaching safe distance detecting, and described processing module is sent and driven signal and transfer to alarm output module and warn output.
Be provided with loudspeaker or the hummer corresponding with nearly electro-induction module on described alarm output module.
Described device also comprises the infrared induction module, described infrared induction module is connected with power module with processing module respectively, be provided with first pilot lamp corresponding with the infrared induction module on described alarm output module, described processing module will drive signal and transfer to alarm output module and open to drive the first pilot lamp when receiving the trigger pip that the infrared induction module sends.
Described device also comprises the Vibration induction module, described Vibration induction module is connected with power module with processing module respectively, be provided with second pilot lamp corresponding with the Vibration induction module on described alarm output module, described processing module will drive signal and transfer to alarm output module and open to drive the second pilot lamp when receiving the trigger pip that the Vibration induction module sends.
described device also comprises infrared induction module and Vibration induction module, and the gauge tap selected of the trigger pip that induction is sent to infrared induction module and Vibration induction module, described infrared induction module is connected with power module with processing module respectively with the Vibration induction module, described gauge tap is connected with processing module, be provided with first pilot lamp corresponding with the infrared induction module and second pilot lamp corresponding with the Vibration induction module on described alarm output module, described processing module will drive signal and transfer to alarm output module and open to drive the first pilot lamp and/or the second pilot lamp when receiving the trigger pip that infrared induction module and/or Vibration induction module send.
Described nearly electro-induction module comprises interconnected antenna and signal processing controller, and described signal processing controller comprises impedance transformer, wave filter, integrator and the controller that connects successively; Described antenna induction in the alternating electric field of electrified body alternating voltage and transfer to the impedance rheostat, export the constant amplitude alternating signal to integrator by wave filter after described impedance rheostat transforming impedance, send trigger pip by controller when described integrator builds up to specific voltage and transfer to processing module.
Described infrared induction module is infrared eye.
Described power module comprises direct supply and/or sun-generated electric power and/or AC power.
Technique effect of the present utility model is as follows:
the ground wire that the utility model relates to is assisted electroscopic device, comprise nearly electro-induction module, processing module, the electric pressure selector switch, power module and alarm output module, by the electric pressure setting safe distance of electric pressure selector switch according to want working position, nearly electro-induction module is arranged on the top of the earthing clamp of ground wire, when the earthing clamp of ground wire during near electrified body, nearly electro-induction module is carried out nearly electro-detection, in the time that reaching safe distance, distance between ground wire and electrified body sends trigger pip when detecting, this trigger pip transfers to processing module, processing module is sent and is driven signal and transfer to alarm output module and warn output, like this, when charged on ground wire institute's hanging wire road, nearly electro-induction module can not sent trigger pip, when ground wire institute's hanging wire road is charged, close this charged equipment (being electrified body) of ground wire is in the time of reaching safe distance, nearly electro-induction module is sent trigger pip, finally warn output by alarm output module, namely report to the police, remind the ground wire of staff's operation to wait to hang standby charged, thereby the generation of prevention work personnel accidental shock and live connection of ground wire accident, synchronously realized electrical verification for the second time when equipment power cut construction hanging earthing conductor, avoided prior art due to the problem that lacks the secondary electrical verification and cause, stopped simultaneously the security incident brought due to error checking electricity that staff error causes, be strictly on guard against the generation of live connection of ground wire accident, effectively guarantee workmen's personal safety and device security.The utility model is distinguished the safe distance of different electric pressures by the electric pressure selector switch, can make a covering device satisfy the demand of the different electric pressure equipment of electric system, and is easy to use, saved production cost.Nearly the electro-induction module is arranged on the top of the earthing clamp of ground wire, can eliminate earthing clamp to the impact of nearly electric inductor, do not change the sensitivity of nearly electric inductor, further improved the reliability of the auxiliary electroscopic device alarming in short range of electric power of the utility model ground wire.
The auxiliary electroscopic device of the utility model ground wire preferably arranges the infrared induction module, sense personnel by the infrared induction module close, when the close ground wire of staff, the infrared induction module starts and sends trigger pip to processing module, processing module is bright at the first pilot lamp that receives the trigger pip rear drive alarm output module that the infrared induction module sends, thereby reaches the purpose of security warning.
The auxiliary electroscopic device of the utility model ground wire preferably arranges the Vibration induction module, whether shaken by Vibration induction module inductive grounding line, when the staff picks up ground wire, the Vibration induction module starts and sends trigger pip to processing module, processing module is bright at the second pilot lamp that receives the trigger pip rear drive alarm output module that the Vibration induction module sends, thereby the people around caution has the staff at present using ground wire, to reach the purpose of security warning.
The auxiliary electroscopic device of the utility model ground wire can all arrange infrared induction module and Vibration induction module, select by the gauge tap trigger pip that induction is sent to infrared induction module and Vibration induction module, the corresponding pilot lamp of corresponding driving unblanking alarm output module is processed and sent to processing module to carry out the power system security caution according to the corresponding trigger pip that the selection of gauge tap will receive.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 a and Fig. 2 b are the mounting structure schematic diagram of nearly electro-induction module of the present utility model.
Fig. 3 is the preferred structural representation of the utility model.
In figure, each label lists as follows:
The nearly electro-induction module of 1-; The 2-ground wire; The 3-earthing clamp; The 4-loudspeaker; 5-the first pilot lamp; 6-the second pilot lamp.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described.
the utility model relates to the auxiliary electroscopic device of a kind of ground wire, its structural representation as shown in Figure 1, comprise nearly electro-induction module, processing module, the electric pressure selector switch, power module and alarm output module, processing module respectively with nearly electro-induction module, the electric pressure selector switch is connected with alarm output module, power module is connected with processing module with nearly electro-induction module respectively, the safe distance that nearly electro-induction module is set according to different electric pressures according to the electric pressure selector switch carries out nearly electro-detection and sends trigger pip to processing module when distance between ground wire and electrified body reaches safe distance (in other words between the two distance less than or equal to safe distance) detecting, processing module is sent and is driven signal and transfer to alarm output module and warn output.
Nearly electro-induction module in the auxiliary electroscopic device of ground wire shown in Figure 1 is arranged on the top of the earthing clamp of ground wire, this is because sensitivity and the accuracy of nearly electro-induction are subject to resistance, electric capacity between nearly electro-induction module and the earth, the impact of the factors such as antenna induction voltage, if its nearly electro-induction module is arranged on earthing clamp back (or side), ground wire must be with the first ground connection of earth terminal before close electrified body, also just must affect its various sensed parameter, and then affect its sensitivity and sensitivity.So it must be arranged on the top of earthing clamp, as shown in Fig. 2 a and Fig. 2 b, for the earthing clamp 3 of two kinds of different structures, nearly electro-induction module 1 all is arranged on the top of the earthing clamp 3 of ground wire 2.
The utility model adopts nearly electro-induction module to carry out nearly electro-detection, and its principle of work is different from the contact electroscope, and nearly electric inductor is directly not contact with hi-line, and whether near the electric field the detected electrical equipment of utilization detects high-tension line charged.The safe distance that nearly electro-induction module is set according to the electric pressure selector switch carries out nearly electro-detection: the electric pressure selector switch is set safe distance according to the electric pressure of want working position, as when electric pressure is 10KV, the safe distance that the electric pressure selector switch is set is 1m, when ground wire near the distance of electrified body during less than or equal to 1m, nearly electro-induction module is sent trigger pip to processing module, is finally reported to the police by alarm output module; When electric pressure was 110KV, the safe distance that the electric pressure selector switch is set was 2m, and near the distance of electrified body during less than or equal to 2m, nearly electro-induction module is sent trigger pip to processing module, is finally reported to the police by alarm output module when ground wire.
Nearly electro-induction module can adopt the structure of the alarm for nearing electrisity of prior art, also can select other structure to realize that nearly electro-induction detects.The nearly electro-induction module of the present embodiment comprises interconnected antenna and signal processing controller, and signal processing controller comprises impedance transformer, wave filter, integrator and the controller that connects successively.When being in alternating electric field, antenna can induce certain alternating voltage Δ U, after the impedance transformer transforming impedance, export the constant amplitude alternating signal to integrator by wave filter, when alternating signal runs up to sufficiently high voltage on integrator, send trigger pip by controller and transfer to processing module, processing module is sent drive alarm output module warning (reporting to the police by loudspeaker or hummer or other microphone device are set in alarm output module).Wherein, the capacitor C between resistance R, antenna and the ground between voltage V, antenna and the ground of the sensitivity (or perhaps distance of reaction) of nearly electro-induction module induction and electrified body, the induced voltage Δ U on antenna and the length Δ L of antenna etc. are relevant.Due to ground wire ground connection before being articulated to conductor, near the alternating electric field the conductor end impact of ground wire distributes, if the electro-induction module is installed to the earthing clamp rear portion, has also just affected the alternating voltage Δ U that nearly electro-induction module induces nearly; If accidentally antenna is contacted with earthing clamp, also changed the length Δ L of antenna.In order to respond to the accuracy of electrical verification, nearly the electro-induction module is positioned at the top of the earthing clamp of ground wire.
The auxiliary electroscopic device of the utility model ground wire preferably arranges the infrared induction module, the infrared induction module is connected with power module with processing module respectively, be provided with first pilot lamp corresponding with the infrared induction module on described alarm output module, the infrared induction module can adopt infrared eye, the inductive probe of infrared eye is sensed personnel near ground wire, thereby send trigger pip to processing module, processing module is bright at the first pilot lamp that receives the trigger pip rear drive alarm output module that the infrared induction module sends, thereby reaches the purpose that gives warning in advance.
the auxiliary electroscopic device of the utility model ground wire also can preferably arrange the Vibration induction module, the Vibration induction module is connected with power module with processing module respectively, be provided with second pilot lamp corresponding with the Vibration induction module on alarm output module, when the staff picks up ground wire, the Vibration induction module starts and sends trigger pip to processing module, processing module is bright at the second pilot lamp that receives the trigger pip rear drive alarm output module that the Vibration induction module sends, thereby the people around caution has the staff using ground wire, to reach the purpose of security warning.
In addition, the auxiliary electroscopic device of the utility model ground wire can all arrange infrared induction module and Vibration induction module, the utility model preferred structure schematic diagram as shown in Figure 3.At this moment, the utility model comprises that also the trigger pip that gauge tap is sent with the induction to infrared induction module and Vibration induction module selects, the infrared induction module is connected with power module with processing module respectively with the Vibration induction module, gauge tap is connected with processing module, is provided with loudspeaker 4, first pilot lamp 5 corresponding with the infrared induction module and second pilot lamp 6 corresponding with the Vibration induction module on alarm output module.The corresponding pilot lamp of corresponding driving unblanking alarm output module is processed and sent to the corresponding trigger pip that processing module will receive according to the selection of gauge tap to carry out the power system security caution.For example, when gauge tap was selected trigger pip that the infrared induction module sends, the trigger pip that processing module is sent the infrared induction module was processed, and it is bright to drive the first pilot lamp of alarm output module, informs the light warning that the people is close.When gauge tap is selected trigger pip that infrared induction module and Vibration induction module send simultaneously, when the close ground wire of staff, the infrared induction module starts and sends trigger pip to processing module, and processing module drives the first pilot lamp bright after determining that this trigger pip is selected; When the staff picks up ground wire, the Vibration induction module starts and sends trigger pip to processing module, and processing module drives the second pilot lamp bright after determining that this trigger pip is selected, thereby around caution, personnel have the staff using ground wire, to reach the purpose of security warning.
Above-described embodiment adopts infrared and Vibration induction jointly defines the staff and uses ground wire: by the staff near the time infrared induction trigger, define the people and will use this ground wire; Vibration induction when picking up ground wire by the staff triggers, determine that someone uses this ground wire, can determine that like this this ground wire is in running order, after preventing from again ground wire is suspended to dead line, the induced electricity that is produced by other charging equipment, and the triggering alarming in short range of electric power that causes of other reason (for example strong wind).
Power module provides power supply for device described in the utility model, and this power supply can adopt direct supply (dry cell, accumulator), sun-generated electric power equal energy source equipment.For example, power module can adopt solar panel to carry work, so both can charge the battery again for device described in the utility model provides power supply, has more extended the replacement cycle of battery, and accomplished environmental protection.After staff's hanging earthing conductor end of operation, the staff leaves ground wire, but this moment device automatic stand-by described in the utility model, play the effect of energy savings.Alarm output module is used for the output of reporting to the police, the audible alarm that loudspeaker or hummer or other microphone device carry out nearly electro-induction module can be set, first pilot lamp corresponding with the infrared induction module can be set carry out light warning when the close ground wire of personnel, second pilot lamp corresponding with the Vibration induction module can be set carry out light warning when personnel pick up ground wire.By the warning of alarm output module, reaching the generation of prevent an accident electric shock and live connection of ground wire accident.
Nearly electro-induction module in the auxiliary electroscopic device of the utility model ground wire adopts signal wire to be connected with processing module, the parts of device described in the utility model except nearly electro-induction module can be according to different earthing clamps, be arranged on the insulating bar outside or the inboard of ground wire or be arranged on other position, can certainly be arranged on together with nearly electro-induction module (this moment, the overall volume of device described in the utility model was very little) on earthing clamp, do not change original physical construction of ground wire, easy for installation, reduce costs.
Should be pointed out that the above embodiment can make the invention of those skilled in the art's comprehend, but do not limit the present invention in any way creation.Therefore; although this instructions has been described in detail the invention with reference to drawings and Examples; but; those skilled in the art are to be understood that; still can modify or be equal to replacement the invention; in a word, all do not break away from technical scheme and the improvement thereof of the spirit and scope of the invention, and it all should be encompassed in the middle of the protection domain of the invention patent.
Claims (8)
1. a ground wire is assisted electroscopic device, it is characterized in that, comprise nearly electro-induction module, processing module, electric pressure selector switch, power module and alarm output module, described processing module is connected with alarm output module with nearly electro-induction module, electric pressure selector switch respectively, described power module is connected with processing module with nearly electro-induction module respectively, and described nearly electro-induction module is arranged on the top of the earthing clamp of ground wire; The safe distance that described nearly electro-induction module is set according to the electric pressure selector switch carries out nearly electro-detection and sends trigger pip to processing module in the time that distance between ground wire and electrified body reaching safe distance detecting, and described processing module is sent and driven signal and transfer to alarm output module and warn output.
2. the auxiliary electroscopic device of ground wire according to claim 1, is characterized in that, is provided with loudspeaker or the hummer corresponding with nearly electro-induction module on described alarm output module.
3. ground wire according to claim 2 is assisted electroscopic device, it is characterized in that, also comprise the infrared induction module, described infrared induction module is connected with power module with processing module respectively, be provided with first pilot lamp corresponding with the infrared induction module on described alarm output module, described processing module will drive signal and transfer to alarm output module and open to drive the first pilot lamp when receiving the trigger pip that the infrared induction module sends.
4. ground wire according to claim 2 is assisted electroscopic device, it is characterized in that, also comprise the Vibration induction module, described Vibration induction module is connected with power module with processing module respectively, be provided with second pilot lamp corresponding with the Vibration induction module on described alarm output module, described processing module will drive signal and transfer to alarm output module and open to drive the second pilot lamp when receiving the trigger pip that the Vibration induction module sends.
5. ground wire according to claim 2 is assisted electroscopic device, it is characterized in that, also comprise infrared induction module and Vibration induction module, and the gauge tap selected of the trigger pip that induction is sent to infrared induction module and Vibration induction module, described infrared induction module is connected with power module with processing module respectively with the Vibration induction module, described gauge tap is connected with processing module, be provided with first pilot lamp corresponding with the infrared induction module and second pilot lamp corresponding with the Vibration induction module on described alarm output module, described processing module will drive signal and transfer to alarm output module and open to drive the first pilot lamp and/or the second pilot lamp when receiving the trigger pip that infrared induction module and/or Vibration induction module send.
6. the auxiliary electroscopic device of described ground wire of one of according to claim 1 to 5, it is characterized in that, described nearly electro-induction module comprises interconnected antenna and signal processing controller, and described signal processing controller comprises impedance transformer, wave filter, integrator and the controller that connects successively; Described antenna induction in the alternating electric field of electrified body alternating voltage and transfer to the impedance rheostat, export the constant amplitude alternating signal to integrator by wave filter after described impedance rheostat transforming impedance, send trigger pip by controller when described integrator builds up to specific voltage and transfer to processing module.
7. the auxiliary electroscopic device of according to claim 3 or 5 described ground wires, is characterized in that, described infrared induction module is infrared eye.
8. the auxiliary electroscopic device of ground wire according to claim 1, is characterized in that, described power module comprises direct supply and/or sun-generated electric power and/or AC power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220613168 CN202975125U (en) | 2012-11-19 | 2012-11-19 | Auxiliary electricity testing device for grounding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220613168 CN202975125U (en) | 2012-11-19 | 2012-11-19 | Auxiliary electricity testing device for grounding |
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| Publication Number | Publication Date |
|---|---|
| CN202975125U true CN202975125U (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220613168 Expired - Fee Related CN202975125U (en) | 2012-11-19 | 2012-11-19 | Auxiliary electricity testing device for grounding |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502680A (en) * | 2014-11-26 | 2015-04-08 | 国家电网公司 | Anti-electric-shock apparatus |
| CN105137157A (en) * | 2015-09-09 | 2015-12-09 | 国家电网公司 | Alternating- and direct-current high-voltage electricity testing device |
| CN105632098A (en) * | 2016-03-31 | 2016-06-01 | 国网辽宁省电力有限公司辽阳供电公司 | Splitting high-voltage device near electric alarm |
| CN105656199A (en) * | 2016-01-07 | 2016-06-08 | 武汉里得电力科技股份有限公司 | Automatic and dynamic monitoring type digital connection and transmission line |
| CN106133531A (en) * | 2014-04-01 | 2016-11-16 | 罗森伯格高频技术有限及两合公司 | Contact assembly, particularly HF measure head |
| CN106443300A (en) * | 2016-10-10 | 2017-02-22 | 国网浙江省电力公司丽水供电公司 | Grounding alarm capable of preventing grounding wire from being electrified |
| CN107728003A (en) * | 2017-09-08 | 2018-02-23 | 国网浙江省电力公司金华供电公司 | State of earth wire real-time monitoring device and control method |
| CN108459207A (en) * | 2018-07-06 | 2018-08-28 | 广东电网有限责任公司 | Grounding measurement device and grounding wire detection system |
| CN108490316A (en) * | 2018-07-06 | 2018-09-04 | 广东电网有限责任公司 | Intelligent distribution network grounding wire device and intelligent distribution network grounding wire grounding measurement system |
| CN109030922A (en) * | 2018-10-29 | 2018-12-18 | 广东电网有限责任公司 | Universal electroscope with anti-sticking function |
| CN110009858A (en) * | 2019-03-11 | 2019-07-12 | 国网新疆电力有限公司昌吉供电公司 | The nearly electric prior-warning device of transmission line of electricity |
| CN110071578A (en) * | 2019-05-27 | 2019-07-30 | 广东电网有限责任公司 | A kind of intelligent safety monitoring system of earthing or grounding means |
| CN110644916A (en) * | 2019-10-30 | 2020-01-03 | 广东电网有限责任公司 | Novel special insulating ladder of safety protection formula distribution network |
-
2012
- 2012-11-19 CN CN 201220613168 patent/CN202975125U/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106133531B (en) * | 2014-04-01 | 2020-10-20 | 罗森伯格高频技术有限及两合公司 | Contact arrangement, in particular HF measuring head |
| CN106133531A (en) * | 2014-04-01 | 2016-11-16 | 罗森伯格高频技术有限及两合公司 | Contact assembly, particularly HF measure head |
| CN104502680A (en) * | 2014-11-26 | 2015-04-08 | 国家电网公司 | Anti-electric-shock apparatus |
| CN105137157A (en) * | 2015-09-09 | 2015-12-09 | 国家电网公司 | Alternating- and direct-current high-voltage electricity testing device |
| CN105656199A (en) * | 2016-01-07 | 2016-06-08 | 武汉里得电力科技股份有限公司 | Automatic and dynamic monitoring type digital connection and transmission line |
| CN105656199B (en) * | 2016-01-07 | 2018-03-30 | 武汉里得电力科技股份有限公司 | Automatic dynamic monitoring is digital to connect power transmission line |
| CN105632098A (en) * | 2016-03-31 | 2016-06-01 | 国网辽宁省电力有限公司辽阳供电公司 | Splitting high-voltage device near electric alarm |
| CN106443300A (en) * | 2016-10-10 | 2017-02-22 | 国网浙江省电力公司丽水供电公司 | Grounding alarm capable of preventing grounding wire from being electrified |
| CN107728003A (en) * | 2017-09-08 | 2018-02-23 | 国网浙江省电力公司金华供电公司 | State of earth wire real-time monitoring device and control method |
| CN108459207A (en) * | 2018-07-06 | 2018-08-28 | 广东电网有限责任公司 | Grounding measurement device and grounding wire detection system |
| CN108490316A (en) * | 2018-07-06 | 2018-09-04 | 广东电网有限责任公司 | Intelligent distribution network grounding wire device and intelligent distribution network grounding wire grounding measurement system |
| CN109030922A (en) * | 2018-10-29 | 2018-12-18 | 广东电网有限责任公司 | Universal electroscope with anti-sticking function |
| CN109030922B (en) * | 2018-10-29 | 2023-04-28 | 广东电网有限责任公司 | Universal electroscope with anti-blocking function |
| CN110009858A (en) * | 2019-03-11 | 2019-07-12 | 国网新疆电力有限公司昌吉供电公司 | The nearly electric prior-warning device of transmission line of electricity |
| CN110071578A (en) * | 2019-05-27 | 2019-07-30 | 广东电网有限责任公司 | A kind of intelligent safety monitoring system of earthing or grounding means |
| CN110644916A (en) * | 2019-10-30 | 2020-01-03 | 广东电网有限责任公司 | Novel special insulating ladder of safety protection formula distribution network |
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