CN105137157A - Alternating- and direct-current high-voltage electricity testing device - Google Patents

Alternating- and direct-current high-voltage electricity testing device Download PDF

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Publication number
CN105137157A
CN105137157A CN201510570301.2A CN201510570301A CN105137157A CN 105137157 A CN105137157 A CN 105137157A CN 201510570301 A CN201510570301 A CN 201510570301A CN 105137157 A CN105137157 A CN 105137157A
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China
Prior art keywords
alternating current
judging unit
voltage
direct current
current
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CN201510570301.2A
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Chinese (zh)
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CN105137157B (en
Inventor
罗嘉玮
陈新岗
古亮
杨定坤
吴昊
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The Bei Bei of Guo Wang Chongqing City Electrical Power Co. power supply branch
State Grid Corp of China SGCC
Chongqing University of Technology
Information and Telecommunication Branch of State Grid Chongqing Electric Power Co Ltd
Original Assignee
Bei Bei Of Guo Wang Chongqing City Electrical Power Co Power Supply Branch
State Grid Corp of China SGCC
Chongqing University of Technology
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Application filed by Bei Bei Of Guo Wang Chongqing City Electrical Power Co Power Supply Branch, State Grid Corp of China SGCC, Chongqing University of Technology filed Critical Bei Bei Of Guo Wang Chongqing City Electrical Power Co Power Supply Branch
Priority to CN201510570301.2A priority Critical patent/CN105137157B/en
Publication of CN105137157A publication Critical patent/CN105137157A/en
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Abstract

An alternating- and direct-current high-voltage electricity testing device provided by the invention includes a processor, an electricity testing unit, a voltage class judging unit, a probe used for inducting charges and an alternating current judging unit used for detecting a magnetic field of high-voltage equipment. The alternating and direct current high-voltage electricity testing device provided by the invention can test both alternating current and direct current, is suitable for existing alternating and direct current high-voltage equipment and novel ultrahigh-voltage direct-current transmission equipment, can test the voltage class of the equipment while testing whether the equipment is electrified, is particularly suitable for a circumstance that the voltage class of the equipment to be tested is unknown, can be widely applied to electrical equipment or cables of all voltage classes, and is extremely strong in applicability, safe and convenient to carry.

Description

Alternating current-direct current high voltage testing device
Technical field
The present invention relates to power domain, particularly relate to a kind of alternating current-direct current high voltage testing device.
Background technology
In recent years, along with China's expanding economy, modernization construction as the power industry of lifelines of the national economy has embodied increasing importance, electric energy is as modern society and the important energy thereof, play a part very important in national economy and people's lives, people are to the demand of electric power and dependence and increase severely day, ensure that the safe and reliable operation of electric power system has become the top priority of electric administrative department.
Electroscope is the instrument of the whether charged and guestimate carried charge size of a kind of inspected object, be divided into low pressure electroscope and high voltage electroscope, low pressure electroscope is used for inspection voltage-to-ground at 250V and following low voltage electrical equipment, high voltage electroscope is mainly used to the high voltage electric equipment of inspection machine voltage-to-ground at more than 250V, in prior art, high voltage electroscope can only carry out live detection to the equipment of the electric pressure of nominal, different electric pressure needs different electroscopes, and for alternating current-direct current, also different electroscopes is needed, and must be noted that when using electroscope its rated voltage adapts with the electric pressure being verified electrical equipment, otherwise the safety of electroscope and operating personnel may be jeopardized or cause erroneous judgement.
Summary of the invention
In view of this, the invention provides a kind of alternating current-direct current high voltage testing device, to solve the problem.
Alternating current-direct current high voltage testing device provided by the invention, comprise processor, electrical verification unit, electric pressure judging unit, for the probe of induced charge and the alternating current judging unit for detecting high-tension apparatus magnetic field;
Described probe is connected with electrical verification unit, and described electrical verification unit is connected with electric pressure judging unit, and described electric pressure judging unit is connected with processor, and described alternating current judging unit is connected with processor;
Described probe produces electric charge after measured object, through electrical verification unit and electric pressure judging unit measured voltage level, by alternating current judging unit to measured object be exchange or direct current judge.
Further, described electric pressure judging unit comprises the light source, grating and the photoelectric sensor that open angle for detecting aluminium foil in electroscopic device.
Further, described electrical verification unit comprises electroscope and charge amplifier, and described electroscope is connected with electric pressure judging unit, and described charge amplifier is connected with processor.
Further, described alternating current judging unit is Hall element.
Further, also comprise alarm module, described alarm module is connected with processor.
Further, also comprise wireless transport module, described wireless transport module is connected with processor.
Further, self-test unit and the change-over switch for switching self-inspection and measuring ability is also comprised.
Further, the insulating bar of high-pressure side disruptive discharge when also comprising for preventing from holding handle
Beneficial effect of the present invention: alternating current-direct current high voltage testing device provided by the invention both can check interchange, also direct current can be checked, be applicable to existing alternating current-direct current high-tension apparatus and novel super high voltage direct current electricity transmission equipment, and while whether checkout equipment is charged, the electric pressure of all right checkout equipment, be particularly useful for situation during electric pressure the unknown of Devices to test, can be widely used in power equipment or the cable of all electric pressures, the present invention has the features such as applicability is strong, safe, easy to carry.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is principle schematic of the present invention.
Fig. 2 is structural representation of the present invention.
Fig. 3 is the principle schematic of electric pressure judging unit of the present invention.
Embodiment
As shown in Figure 1, 2, the alternating current-direct current high voltage testing device in the present embodiment, comprise processor, electrical verification unit 2, electric pressure judging unit, for the probe 1 of induced charge and the alternating current judging unit for detecting high-tension apparatus magnetic field;
Described probe 1 is connected with electrical verification unit, and described electrical verification unit 2 is connected with electric pressure judging unit, and described electric pressure judging unit is connected with processor, and described alternating current judging unit is connected with processor;
Described probe 1 produces electric charge after measured object, through electrical verification unit 2 and electric pressure judging unit measured voltage level, by alternating current judging unit to measured object be exchange or direct current judge, power equipment or the cable of all electric pressures can be widely used in.
As shown in Figure 3, in the present embodiment, electric pressure judging unit comprises the light source, grating and the photoelectric sensor that open angle for detecting aluminium foil in electroscopic device.When electroscopic device is near measured object, probe can induce the electric charge of some, aluminium foil coupled in electroscope is because mutually repel generation angle with like charges, two symmetrical light sources irradiate back reflections to on the photoelectric cell of grating, reflected light by grating by photoelectric cell receiving optical signals and then measure its corner dimension, due to its subtended angle and electric pressure positive correlation, therefore, the angle by measuring its subtended angle can judge the electric pressure of measured object.
In the present embodiment, electrical verification unit 2 comprises electroscope and charge amplifier, and described electroscope is connected with electric pressure judging unit, and described charge amplifier is connected with processor.Charge amplifier in the present embodiment by charge-voltage converting level, suitable to adjust a wage scale, a few part such as low-pass filter, Hi-pass filter, final stage power amplifier and power supply forms, by the voltage that faint charge-voltage converting becomes to be proportional by charge amplifier, and high output impedance is become low output impedance, carry out supplementing and revising to electroscope, be converted into corresponding electric pressure according to electroscope aluminium foil subtended angle.
In the present embodiment, alternating current judging unit adopts Hall element 5, as shown in Figure 2, Hall element 5 is installed on probe, when probe 1 exchanges near equipment under test band, the induced field produced when AC signal is run makes Hall element induced voltage, and then can judge measured object band direct current or alternating current.
In the present embodiment, also comprise alarm module, described alarm module is connected with processor, and when measured object is charged, alarm module then can give the alarm, and type of alarm can adopt sound and light alarm or other modes to remind operator.
In the present embodiment, also comprise wireless transport module, described wireless transport module is connected with processor.By wireless transport module can with electrical verification staff and the tutorial mobile communication of electrical verification, send relevant information, data are carried out long-range transmission, are convenient to on-line monitoring, record.
In the present embodiment, also comprise self-test unit and the change-over switch for switching self-inspection and measuring ability, self-test unit in the present embodiment is provided with self-inspection button, after pressing self-inspection button, alarm module can produce regular sound and light alarm signal, show that electroscope is in normal serviceable condition, otherwise illustrate that electroscope exists fault and can not use.
In the present embodiment, the insulating bar 3 of high-pressure side disruptive discharge when also comprising for preventing from holding handle 4, by holding handle 4, make probe 1 slowly near measured object, insulating bar 3 can effectively prevent high-pressure side disruptive discharge.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.

Claims (8)

1. an alternating current-direct current high voltage testing device, is characterized in that: comprise processor, electrical verification unit, electric pressure judging unit, for the probe of induced charge and the alternating current judging unit for detecting high-tension apparatus magnetic field;
Described probe is connected with electrical verification unit, and described electrical verification unit is connected with electric pressure judging unit, and described electric pressure judging unit is connected with processor, and described alternating current judging unit is connected with processor;
Described probe produces electric charge after measured object, through electrical verification unit and electric pressure judging unit measured voltage level, by alternating current judging unit to measured object be exchange or direct current judge.
2. alternating current-direct current high voltage testing device according to claim 1, is characterized in that: described electric pressure judging unit comprises the light source, grating and the photoelectric sensor that open angle for detecting aluminium foil in electroscopic device.
3. alternating current-direct current high voltage testing device according to claim 1, is characterized in that: described electrical verification unit comprises electroscope and charge amplifier, and described electroscope is connected with electric pressure judging unit, and described charge amplifier is connected with processor.
4. alternating current-direct current high voltage testing device according to claim 1, is characterized in that: described alternating current judging unit is Hall element.
5. the alternating current-direct current high voltage testing device according to the arbitrary claim of claim 1-4, it is characterized in that: also comprise alarm module, described alarm module is connected with processor.
6. alternating current-direct current high voltage testing device according to claim 5, it is characterized in that: also comprise wireless transport module, described wireless transport module is connected with processor.
7. alternating current-direct current high voltage testing device according to claim 1, is characterized in that: also comprise self-test unit and the change-over switch for switching self-inspection and measuring ability.
8. alternating current-direct current high voltage testing device according to claim 5, is characterized in that: the insulating bar of high-pressure side disruptive discharge when also comprising for preventing from holding handle.
CN201510570301.2A 2015-09-09 2015-09-09 Alternating current-direct current high voltage testing device Active CN105137157B (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106249031A (en) * 2016-08-30 2016-12-21 重庆理工大学 Power frequency high voltage measuring device with electricity
CN106353570A (en) * 2016-08-23 2017-01-25 徐勤凤 Device of verification of live part for power systems
CN106645891A (en) * 2016-11-16 2017-05-10 合肥普望电子有限责任公司 Power grid high-voltage line live part verification method
CN106645890A (en) * 2016-11-16 2017-05-10 合肥普望电子有限责任公司 High voltage electroscopic system
CN107132402A (en) * 2017-06-12 2017-09-05 广东电网有限责任公司汕头供电局 A kind of electrification in high voltage detection means
CN107525977A (en) * 2016-06-20 2017-12-29 广东电网有限责任公司中山供电局 High-tension apparatus measuring device with electricity
CN110672910A (en) * 2019-11-04 2020-01-10 肖远奇 Acousto-optic electricity testing device with sound alarm function

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107525977A (en) * 2016-06-20 2017-12-29 广东电网有限责任公司中山供电局 High-tension apparatus measuring device with electricity
CN106353570A (en) * 2016-08-23 2017-01-25 徐勤凤 Device of verification of live part for power systems
CN106249031A (en) * 2016-08-30 2016-12-21 重庆理工大学 Power frequency high voltage measuring device with electricity
CN106645891A (en) * 2016-11-16 2017-05-10 合肥普望电子有限责任公司 Power grid high-voltage line live part verification method
CN106645890A (en) * 2016-11-16 2017-05-10 合肥普望电子有限责任公司 High voltage electroscopic system
CN107132402A (en) * 2017-06-12 2017-09-05 广东电网有限责任公司汕头供电局 A kind of electrification in high voltage detection means
CN107132402B (en) * 2017-06-12 2019-11-05 广东电网有限责任公司汕头供电局 A kind of electrification in high voltage detection device
CN110672910A (en) * 2019-11-04 2020-01-10 肖远奇 Acousto-optic electricity testing device with sound alarm function

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Inventor after: Luo Jiawei

Inventor after: Chen Xingang

Inventor after: Huang Jing

Inventor after: Li Jiarong

Inventor after: Xu Mei

Inventor after: Gu Liang

Inventor after: Yang Dingkun

Inventor after: Wu Hao

Inventor after: Xiao Jingwei

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