CN202362401U - Device for measuring electric field distribution of high-voltage live insulator - Google Patents

Device for measuring electric field distribution of high-voltage live insulator Download PDF

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Publication number
CN202362401U
CN202362401U CN201120476806XU CN201120476806U CN202362401U CN 202362401 U CN202362401 U CN 202362401U CN 201120476806X U CN201120476806X U CN 201120476806XU CN 201120476806 U CN201120476806 U CN 201120476806U CN 202362401 U CN202362401 U CN 202362401U
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CN
China
Prior art keywords
insulator
electric
probe
insulating bar
measuring
Prior art date
Application number
CN201120476806XU
Other languages
Chinese (zh)
Inventor
陈洪波
冯运
刘平
李龙江
肖伟
胡学秋
熊鹏
马剑辉
Original Assignee
四川电力科学研究院
武汉康普常青软件技术有限公司
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Application filed by 四川电力科学研究院, 武汉康普常青软件技术有限公司 filed Critical 四川电力科学研究院
Priority to CN201120476806XU priority Critical patent/CN202362401U/en
Application granted granted Critical
Publication of CN202362401U publication Critical patent/CN202362401U/en

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Abstract

The utility model relates to a device for measuring electric field distribution of a high-voltage live insulator. The device is structurally characterized in that a structural fixing part is matched with a tower cross arm and is installed on the tower cross arm, the structural fixing piece is used for fixing an insulating bar at the zero potential end of the insulator and the insulating bar can freely move along the hanging direction of the insulator; a passive electric field probe is fixedly arranged on the insulating bar and can linearly move back and forth between the high-voltage end and the zero potential end of the insulator along the surface of the insulator; and an electric field measuring instrument is connected with the passive electric field probe through an optical cable. The device for measuring the electric field distribution of the high-voltage live insulator not only can detect the internal defects of composite insulators, but also can detect zero-valve or low-value insulators, the insulators in a good condition are not short-circuited, the device is not influenced by optical noises and electromagnetic interference, the device is simple and convenient to operate, the cost is low, and the complete electrical isolation and non-contact operation of high-voltage and low-voltage sides are realized. The operation state of the insulator can be judged according to the distribution situation of the surface electric field intensity of the measured insulator.

Description

A kind of device of measuring electrification in high voltage insulator Electric Field Distribution
Technical field
The utility model relates to a kind of device of measuring electrification in high voltage insulator Electric Field Distribution.
Background technology
The conventional means that detects the ultra-high-tension power transmission line composite insulator at present is that this method can not be seen insulator inherent vice and hidden defective with the binoculars range estimation; Detecting the low null value suspended insulator common tool of ultra-high-tension power transmission line is the spark fork, during detection with two metal contact of spark fork respectively with the iron pin and chapeau de fer overlap joint of insulator, if insulator dielectric is functional, then the insulator pressure-bearing is breakdown, the generation spark discharge.Operating personnel judge according to spark discharge sound whether insulator is good, and this method receives the background noise restriction, can not monitor remote insulator, and the short circuit good insulation period of the day from 11 p.m. to 1 a.m can produce danger, can not detect composite insulator.Infrared thermoviewer is monitored insulator according to temperature variation, can not use by day, and cost an arm and a leg.Traditional electronic type electric field measurement method and voltage measurement method be not owing to have optical fiber as transmission channel, and sensing head inside contains metallics or metal construction, can't realize the complete electrical isolation of high-pressure side and low-pressure side, perhaps contactless operation.
Summary of the invention
The purpose of the utility model can not compatible terseness in order to overcome existing insulator detection means, security, the deficiency of accuracy; And provide a kind of device of measuring electrification in high voltage insulator Electric Field Distribution, the utility model can detect the composite insulator inherent vice, can detect the null value low resistance insulator again; And can the short circuit good insulation son, do not receive the influence of optical noise and electromagnetic interference (EMI), easy and simple to handle; With low cost, realized high pressure, the complete electrical isolation of low-pressure side and contactless operation.Distribution situation through tested surface electric field of insulator is judged its running status.
The technical scheme of the utility model is:
A kind of device of measuring electrification in high voltage insulator Electric Field Distribution; Form by electric field measuring apparatus, optical cable, structure fixture, insulating bar and passive electrical Field probe; It is characterized in that: structure fixture and shaft tower cross-arm are supporting and be installed on the shaft tower cross-arm; The structure fixture fixes insulating bar at insulator zero potential end, and makes insulating bar hang the direction free movement along insulator; The passive electrical Field probe is fixed on the insulating bar, and the passive electrical Field probe can back and forth be done rectilinear motion along insulator surface between high-pressure side and zero potential end; Electric field measuring apparatus links to each other with the passive electrical Field probe through optical cable, and the measuring-signal of passive electrical Field probe is input to through optical cable in the electric field measuring apparatus that is positioned over insulator zero potential end, electric field measuring apparatus continuous recording electric field intensity data.
Described passive electrical Field probe is a passive optical electric-field sensor that the rectangular parallelepiped shell that does not contain any conductor material encapsulates, and by the optical cable of two sheath diameter 3mm signal is drawn.Whole sensing head carries out waterproof sealing, and weight is no more than 50g.The passive electrical Field probe is bought from market and is obtained.
Described electric field measuring apparatus is a portable measuring equipment; Purchase obtains from market; The tested light signal that can send power stability is in the passive electrical Field probe; Interior through being received in probe by the light signal after the external electrical field modulation, and then through opto-electronic conversion, signal conditioning circuit obtains the measured value of electric field intensity.This portable set is supplied power by rechargeable battery, and volume is little, and weight is no more than 1kG.
Described structure fixture is made by aluminum alloy materials, be used for doing flexible connection between the insulating bar of hot line job and the cross-arm, the structure fixture through screw rod, fixed by nut on cross-arm.Connect and insulating bar can slide up and down through columnar structured between insulating bar and the structure fixture, with the relative position of adjustment field measurement probe and insulator surface.
The utility model can detect the composite insulator inherent vice, can detect the null value low resistance insulator again, and can the short circuit good insulation son; Do not receive the influence of optical noise and electromagnetic interference (EMI), easy and simple to handle, with low cost; Realized high pressure, the complete electrical isolation of low-pressure side and contactless operation.Distribution situation through tested surface electric field of insulator is judged its running status.
The utility model is easy to operate, and volume is little, and cost is low, and is safe, realized the complete electrical isolation of high-pressure side and zero potential side.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
In conjunction with accompanying drawing the utility model is done further to describe.
As shown in Figure 1; The utility model is made up of electric field measuring apparatus 1, optical cable 2, structure fixture 3, insulating bar 4 and passive electrical Field probe 5; The cross-arm 7 of structure fixture 3 through screw rod, nut and shaft tower 8 is supporting and be installed on the cross-arm 7; Structure fixture 3 fixes insulating bar 4 at insulator 9 zero potential ends, and makes insulating bar 4 hang the direction free movements along insulator 9; Passive electrical Field probe 5 is fixed on the insulating bar 4, and passive electrical Field probe 5 can back and forth be done rectilinear motion along insulator 9 surfaces between high-pressure side and zero potential end; Electric field measuring apparatus 1 links to each other with passive electrical Field probe 5 through optical cable 2, and the measuring-signal of passive electrical Field probe 5 is input to through optical cable 2 in the electric field measuring apparatus 1 that is positioned over insulator 9 zero potential ends, electric field measuring apparatus 1 continuous recording electric field intensity data.
Described passive electrical Field probe 5 is the passive optical electric-field sensors that the rectangular parallelepiped shell that does not contain any conductor material encapsulates, and by the optical cable of two sheath diameter 3mm signal is drawn.Whole sensing head carries out waterproof sealing, and weight is no more than 50g.The passive electrical Field probe is bought from market and is obtained.
Described electric field measuring apparatus 1 is a portable measuring equipment; Purchase obtains from market; The tested light signal that can send power stability is in the passive electrical Field probe; Interior through being received in probe by the light signal after the external electrical field modulation, and then through opto-electronic conversion, signal conditioning circuit obtains the measured value of electric field intensity.This portable set is supplied power by rechargeable battery, and volume is little, and weight is no more than 1kG.
Described structure fixture 3 is made by aluminum alloy materials, be used for doing flexible connection between the insulating bar 4 of hot line job and the cross-arm 7, the structure fixture through screw rod, fixed by nut on cross-arm.Connect and insulating bar can slide up and down through columnar structured between insulating bar and the structure fixture, with the relative position of adjustment field measurement probe and insulator surface.

Claims (2)

1. device of measuring electrification in high voltage insulator Electric Field Distribution; Form by electric field measuring apparatus, optical cable, structure fixture, insulating bar and passive electrical Field probe; It is characterized in that: structure fixture and shaft tower cross-arm are supporting and be installed on the shaft tower cross-arm; The structure fixture fixes insulating bar at insulator zero potential end, and makes insulating bar hang the direction free movement along insulator; The passive electrical Field probe is fixed on the insulating bar, and the passive electrical Field probe can back and forth be done rectilinear motion along insulator surface between high-pressure side and zero potential end; Electric field measuring apparatus links to each other with the passive electrical Field probe through optical cable.
2. the device of measurement electrification in high voltage insulator Electric Field Distribution according to claim 1 is characterized in that: described structure fixture is made by aluminum alloy materials.
CN201120476806XU 2011-11-25 2011-11-25 Device for measuring electric field distribution of high-voltage live insulator CN202362401U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201120476806XU CN202362401U (en) 2011-11-25 2011-11-25 Device for measuring electric field distribution of high-voltage live insulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201120476806XU CN202362401U (en) 2011-11-25 2011-11-25 Device for measuring electric field distribution of high-voltage live insulator

Publications (1)

Publication Number Publication Date
CN202362401U true CN202362401U (en) 2012-08-01

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CN201120476806XU CN202362401U (en) 2011-11-25 2011-11-25 Device for measuring electric field distribution of high-voltage live insulator

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102937681A (en) * 2012-11-29 2013-02-20 山东电力集团公司滨州供电公司 Composite insulator live-line detector of power transmission line
CN103809037A (en) * 2014-02-19 2014-05-21 广西电网公司电力科学研究院 Test apparatus for composite insulator laboratory based on optical electric field transducer
CN104215857A (en) * 2014-09-11 2014-12-17 广西电网公司电力科学研究院 Insulator degradation detecting system
CN104348121A (en) * 2014-10-27 2015-02-11 国网辽宁省电力有限公司葫芦岛供电公司 R-shaped electromagnetic signal emitting pin for power transmission wire insulators
CN104991140A (en) * 2015-07-09 2015-10-21 国家电网公司 Simulation apparatus of electric field detection of composite insulator
CN104348121B (en) * 2014-10-27 2017-01-04 国网辽宁省电力有限公司葫芦岛供电公司 A kind of power line insulators R shape electromagnetic signal emitting pin
CN106771924A (en) * 2016-12-28 2017-05-31 国网内蒙古东部电力有限公司检修分公司 A kind of utilization photoelectricity field sensor detects the detecting system and method for defects of insulator
CN109001546A (en) * 2018-06-25 2018-12-14 国网湖南省电力有限公司 Anti-thunder insulator spatial electronic field measurement system and measurement method
CN109239540A (en) * 2018-07-26 2019-01-18 国网湖南省电力有限公司 High-voltage arrester defect diagnostic method and voltage distribute measuring device
CN111239505A (en) * 2020-01-20 2020-06-05 西安交通大学 Test system for measuring surface field intensity distribution of insulator

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102937681A (en) * 2012-11-29 2013-02-20 山东电力集团公司滨州供电公司 Composite insulator live-line detector of power transmission line
CN103809037A (en) * 2014-02-19 2014-05-21 广西电网公司电力科学研究院 Test apparatus for composite insulator laboratory based on optical electric field transducer
CN103809037B (en) * 2014-02-19 2016-08-17 广西电网公司电力科学研究院 The composite insulator test chamber test device of optically-based electric-field sensor
CN104215857A (en) * 2014-09-11 2014-12-17 广西电网公司电力科学研究院 Insulator degradation detecting system
CN104348121A (en) * 2014-10-27 2015-02-11 国网辽宁省电力有限公司葫芦岛供电公司 R-shaped electromagnetic signal emitting pin for power transmission wire insulators
CN104348121B (en) * 2014-10-27 2017-01-04 国网辽宁省电力有限公司葫芦岛供电公司 A kind of power line insulators R shape electromagnetic signal emitting pin
CN104991140A (en) * 2015-07-09 2015-10-21 国家电网公司 Simulation apparatus of electric field detection of composite insulator
CN106771924A (en) * 2016-12-28 2017-05-31 国网内蒙古东部电力有限公司检修分公司 A kind of utilization photoelectricity field sensor detects the detecting system and method for defects of insulator
CN109001546A (en) * 2018-06-25 2018-12-14 国网湖南省电力有限公司 Anti-thunder insulator spatial electronic field measurement system and measurement method
CN109239540A (en) * 2018-07-26 2019-01-18 国网湖南省电力有限公司 High-voltage arrester defect diagnostic method and voltage distribute measuring device
CN111239505A (en) * 2020-01-20 2020-06-05 西安交通大学 Test system for measuring surface field intensity distribution of insulator

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120801

Termination date: 20151125