CN106597211A - Grounding fault locating system of overhead line - Google Patents

Grounding fault locating system of overhead line Download PDF

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Publication number
CN106597211A
CN106597211A CN201610948313.9A CN201610948313A CN106597211A CN 106597211 A CN106597211 A CN 106597211A CN 201610948313 A CN201610948313 A CN 201610948313A CN 106597211 A CN106597211 A CN 106597211A
Authority
CN
China
Prior art keywords
power supply
transmission line
fault
overhead transmission
earth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610948313.9A
Other languages
Chinese (zh)
Inventor
唐璐
马静君
龚正威
常建斌
于津
冯国强
张元吉
白焰辉
李斌
晏伟
虞星逸
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STATE GRID ZHEJIANG LANXI POWER SUPPLY Co Ltd
State Grid Corp of China SGCC
Jinhua Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Original Assignee
STATE GRID ZHEJIANG LANXI POWER SUPPLY Co Ltd
State Grid Corp of China SGCC
Jinhua Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by STATE GRID ZHEJIANG LANXI POWER SUPPLY Co Ltd, State Grid Corp of China SGCC, Jinhua Power Supply Co of State Grid Zhejiang Electric Power Co Ltd filed Critical STATE GRID ZHEJIANG LANXI POWER SUPPLY Co Ltd
Priority to CN201610948313.9A priority Critical patent/CN106597211A/en
Publication of CN106597211A publication Critical patent/CN106597211A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08Locating faults in cables, transmission lines, or networks
    • G01R31/081Locating faults in cables, transmission lines, or networks according to type of conductors
    • G01R31/085Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead

Abstract

The invention relates to a grounding fault locating system of an overhead line. The system comprises a data collection and indication unit for collecting load current, grounding electric field and temperature information in the line, a master control unit for obtaining the cable voltage, and a data communication unit for receiving information uploaded by the data collection and indication unit and sending the information to the master control unit; and the master control unit comprises a grounding fault determining assembly, a data communication interface, a data processor and a display. The system has the advantages that the grounding state as well as a fault position segment of the overhead line can be determined rapidly and accurately, the determining accuracy of a single-phase grounding fault is improved, the fault determining capability is improved to 90% to 95%, maintenance time is reduced, and labor and vehicle costs are reduced.

Description

It is a kind of to be based on overhead transmission line Earth design system
Technical field
The present invention relates to a kind of be based on overhead transmission line Earth design system.
Background technology
In increasingly enhanced distribution system, distribution network constantly increases and increasingly sophisticated, and these distribution lines are usual Transmission range is distant, and branch line is more, and major part is overhead bare conductor, perhaps multi use environment and local climate condition All compare severe, along with it is artificial it is outside damage, internal overvoltage caused by switch and support equipment failure and thunder and lightning etc. Ground connection and short trouble can be usually caused, once power failure of breaking down, giving people people's people life first makes troubles, and disturbs enterprise The normal production and operation of industry;Secondly greater loss is caused to electric company;In the electrical network that transfer wire length, supply network are complicated In, to look under fault condition with the Traditional Man line inspection, power transmission of need to operating a switch repeatedly sends someone to patrol and examine, inefficiency and accuracy is not High problem.
The content of the invention
The technical problem to be solved in the present invention is just to provide one kind based on overhead transmission line Earth design system, solves existing With the presence of the not high problem of overhead transmission line trouble shoot inefficiency and accuracy.
In order to solve above-mentioned technical problem, the present invention is achieved by the following technical solutions:It is a kind of to be based on overhead transmission line Earth design system, including for gathering load current in circuit, indicate to the data acquisition of earth electric field and temperature information Information is simultaneously sent out by unit, the main control unit for obtaining cable voltage, the information that indicating member upload is gathered for receiving data The data communication units of main control unit are delivered to, main control unit includes earth fault determination component, data communication interface, data processing Device and display, realize route selection and fault location to circuit by earth fault determination component, data communication interface realize with The communication of data communication units, data processor can realize that the storage of data is calculated and issues action to data acquisition indicating member The display of failure path is realized in order, display.
Preferably, data acquisition indicating member includes the suspension basket being installed on overhead transmission line, is arranged on suspension basket and uses It is used for the chip, the reality that receive fault detector information in monitoring the fault detector of line current mutation, being built in suspension basket Show the power supply module of chip power supply, be arranged on suspension basket the instruction component for being used for circuit failure, fault detector, power supply Component, instruction component are connected with chip, and fault detector, instruction component are connected with power supply module respectively, by indicating fault The factors such as the mutation of device accurate measurements electric current in overhead transmission line, size, time according to mutation current judge whether failure, and Fault message is sent to data communication units, by main control unit process, master control after data communication units process by chip Unit is to failure line selection and fault location, and is arranged on overhead transmission line by suspension basket, and realizing fault detector can be precisely Detection circuit short circuit and earth fault, the setting of power supply module, realize the normal work of chip, fault detector.
Preferably, suspension basket includes case lid and is provided with the casing of placed cavity, and two pieces of vertical clapboards are provided with casing, and chip sets Put on two pieces of vertical clapboards, and the bottom of two pieces of vertical clapboards is provided with horizontal cross plate, and the bottom of casing is provided with and placed cavity The through hole for communicating, fault detector is arranged in through hole and the top of fault detector is contacted with horizontal cross plate, indicates that component sets Put on case lid, chip makes an installing space is formed between two pieces of vertical clapboards after installing, and is conducive to the connecting line of casing to arrange Line, prevents the aging of connecting line, reduces the overall volume and total quality of casing, is conducive to the behaviour of operator when installing Make, it is ensured that safety during installation, improve security performance, and the reliability that chip is installed can be improved, prevent the damage of chip, have Beneficial to the connecting line fixed placement on power supply module, fault detector is arranged on the bottom of casing, is avoided that fault detector is received The impact of weather conditions, improves the service life of fault detector, improves monitoring efficiency and monitoring quality, and horizontal cross plate sets Put, improve the connection reliability of fault detector, easy installation and removal.
Preferably, power supply module includes power supply section and charging part, and power supply section is connected with chip, and charging part is connected with power supply section The continuous power supply of power supply section is realized, the continuous power supply of power supply module can be realized, it is ensured that the seriality work of data acquisition indicating member Make.
Preferably, power supply section includes box body and accumulator, and box body is fixedly connected on casing, and built-in storage battery is in box body On, charging part includes the motor being arranged on box body, the rotating disk being arranged on motor, the bracing frame being arranged on rotating disk, setting Solar panel on bracing frame, is connected with power collector, power collector and accumulator phase on solar panel Even, the fixation of accumulator is realized by box body, the damage of accumulator can be placed, storage battery power supply is stable, and charging part is arranged to Solar panel, absorbs solar energy by solar panel, realizes that solar energy is converted into electric energy, and passes through power collector Stored, can guarantee that the continuous power supply of power collector, unfailing performance is good, and the setting of motor, can realize the rotation of rotating disk, Solar panel can be adjusted to optimal sun irradiation angle, and adapt to the overhead transmission line of diverse location, Practical Performance It is good.
Preferably, bracing frame includes fix bar and guide extension bar, and one end of solar panel is connected with fix bar, too The other end of positive energy cell panel is connected with guide extension bar, is controlled solar panel by the guide extension of guide extension bar and is existed Angle on bracing frame, can realize angular adjustment of the different periods to solar panel, reach the optimal collection angle of sunlight Degree.
Preferably, data communication units include control chamber on overhead transmission line electric pole, be built in control chamber with The radio-frequency module of data acquisition indicating member communication, the panel being built in control chamber, the power supply electricity being built in control chamber Source, power supply are connected with power collector, and radio-frequency module is connected with panel, radio-frequency module can realize data communication units with The communication of data acquisition indicating member, power supply are connected with power collector, can guarantee that the continuous power supply of power supply, control The setting of plate, can realize that the information uploaded to data acquisition indicating member is processed and sent to main control unit, control chamber Arrange, the installation of data communication units can be realized, the miniaturization of data communication units can be realized, install simple and convenient.
Preferably, panel is provided with the observation circuit of monitoring power collector charging voltage, the setting of observation circuit, energy Effectively the charging voltage of control power collector, prevents the damage of power collector, improves security performance.
Preferably, main control unit includes single-chip microcomputer, the note cat for sending note, and single-chip microcomputer is connected with note cat, single Piece machine realizes the communication transfer of data by GPRS or GPS and data communication units, the Single-chip Controlling when accident classification occurs Note cat works, and display is connected with single-chip microcomputer, and earth fault determination component, data communication interface, data processor are respectively provided with In single-chip microcomputer, single-chip microcomputer realizes the communication transfer of data with data communication units by GPRS or GPS, can meet circuit and set Standby insulating requirements, data transfer are reliable and stable.
Preferably, earth fault determination component is more electric than amplitude ratio phase and negative phase-sequence than phase, quintuple harmonics by fundamental wave colony amplitude comparison Stream method realizes the route selection of faulty line, by zero-sequence current phase method or mutation are mensuration, earth fault determination component realizes that failure is fixed Position, respectively to circuit carries out failure line selection, energy than amplitude ratio phase and negative-sequence current method than phase, quintuple harmonics by fundamental wave colony amplitude comparison The data of different aforementioned sources or sensor acquisition are carried out interconnecting by set rule, it is related, estimate and combine, to realize to place Reason object accurately and is comprehensively described, and reaches higher data processing level, is avoided that single method causes failure, is improved choosing The accuracy of line, zero-sequence current phase method or the mensuration accuracy that can improve fault location of mutation.
In sum, advantages of the present invention:1. load current in circuit, over the ground electricity are gathered by data acquisition indicating member Field and temperature information, and main control unit is transmitted information to by data communication units, by cable electricity is obtained in main control unit Pressure, quick and precisely can quickly judge the ground state and abort situation section of overhead transmission line, improve the accuracy rate of singlephase earth fault, Make breakdown judge ability bring up to 90%~95%, reduce emergency repair time, reduce artificial, vehicle etc. cost;
2. route selection and the fault location to faulty line is realized by earth fault determination component, manually looked into relative to existing The time spent by failure is looked for, sale of electricity loss can be reduced;
3. the setting of data communication interface, can realize the quick transmission of main control unit and data communication units data, it is ensured that The security reliability of data transfer, and the calculating of failure path is realized by data processor, and realize indicating data acquisition Unit issues action command, can improve degree of accuracy;
4. the setting of display, is easy to operator's observation fault message, can realize that operator quickly rush to repair, and reach Scheduling is operated with the safe of fortune inspection.
Description of the drawings
The invention will be further described below in conjunction with the accompanying drawings:
Fig. 1 is a kind of structural representation based on overhead transmission line Earth design system of the present invention;
Fig. 2 is the structural representation of data acquisition indicating member of the present invention;
Fig. 3 is the structural representation of power supply module of the present invention;
Fig. 4 is the structural representation of data communication units of the present invention.
Specific embodiment
As shown in Figure 1, Figure 2, Figure 3, Figure 4, it is a kind of to be based on overhead transmission line Earth design system, including for gathering line Load current, the data acquisition indicating member 1 to earth electric field and temperature information, the main control unit for obtaining cable voltage in road 2nd, the information for uploading of indicating member 1 data communication units 3 for sending information to main control unit 2 are gathered for receiving data, Main control unit 2 includes earth fault determination component 21, data communication interface 22, data processor 23 and display 24, by connecing Earth fault determination component 21 realizes the route selection to circuit and fault location, and data communication interface 22 is realized and data communication units 3 Communication, data processor 23 can realize data storage calculate and issue action command to data acquisition indicating member 1, show Device 24 realizes the display of failure path.
Referring initially to Fig. 2, data acquisition indicating member 1 includes the suspension basket 11 being installed on overhead transmission line, is arranged on suspension basket It is used for monitoring the fault detector 12 of line current mutation on 11, is built in suspension basket 11 and believes for receiving fault detector 12 The chip 13 of breath, realize chip 13 power supply power supply module 14, be arranged on suspension basket 11 be used for circuit failure instruction Component 15, fault detector 12, power supply module 14, instruction component 15 are connected with chip 13, fault detector 12, instruction component 15 are connected with power supply module 14 respectively, by the mutation of fault detector accurate measurements electric current in overhead transmission line, according to mutation The factors such as the size of electric current, time judge whether failure, and fault message are sent to data communication units, data by chip By main control unit process after communication unit process, main control unit is to failure line selection and fault location, and is installed by suspension basket On overhead transmission line, realize fault detector accurately can detect circuit short circuit and earth fault, the setting of power supply module, Realize the normal work of chip, fault detector.
Suspension basket 11 includes case lid 111 and is provided with the casing 112 of placed cavity 113, and casing 112 is interior to be provided with two pieces of vertical clapboards 114, chip 13 is arranged on two pieces of vertical clapboards 114, and the bottom of two pieces of vertical clapboards 114 is provided with horizontal cross plate 115, and case The bottom of body 112 is provided with the through hole 116 communicated with placed cavity 113, and fault detector 12 is arranged in through hole 116 and indicating fault The top of device 12 is contacted with horizontal cross plate 115, indicates that component 15 is arranged on case lid 111, chip make after installing two pieces vertically every An installing space is formed between plate, is conducive to the connecting line winding displacement of casing, is prevented the aging of connecting line, reduce the whole of casing Body volume and total quality, are conducive to the operation of operator when installing, it is ensured that safety during installation, improve safety Can, and the reliability that chip is installed can be improved, the damage of chip is prevented, is conducive to the connecting line fixed placement on power supply module, Fault detector is arranged on the bottom of casing, is avoided that fault detector is affected by weather conditions, improves fault detector Service life, improves monitoring efficiency and monitoring quality, and the setting of horizontal cross plate improves the connection reliability of fault detector, Easy installation and removal.
Then Fig. 3 is seen, power supply module 14 includes power supply section 141 and charging part 142, and power supply section 141 is connected with chip 13, is filled Electric portion 142 is connected with power supply section 141 and realizes the continuous power supply of power supply section 141, can realize the continuous power supply of power supply module, it is ensured that number According to the continuous sex work of collection indicating member, power supply section 141 includes box body 143 and accumulator 144, and box body 143 is fixedly connected on On casing 112, accumulator 144 is built on box body 143, and charging part 142 includes the motor 145 being arranged on box body 143, arranges Rotating disk 146, the bracing frame 147 being arranged on rotating disk 146 on motor 145, the solaode being arranged on bracing frame 147 Plate 148, is connected with power collector 149 on solar panel 148, power collector 149 is connected with accumulator 144, is passed through Box body realizes the fixation of accumulator, can place the damage of accumulator, and storage battery power supply is stable, and charging part is arranged to solar-electricity Pond plate, is absorbed solar energy by solar panel, realizes that solar energy is converted into electric energy, and deposited by power collector Storage, can guarantee that the continuous power supply of power collector, and unfailing performance is good, and the setting of motor, can realize the rotation of rotating disk, and energy will too Positive energy cell panel is adjusted to optimal sun irradiation angle, and adapts to the overhead transmission line of diverse location, and Practical Performance is good.
Bracing frame 147 includes fix bar 4 and guide extension bar 5, and one end of solar panel 148 is connected with fix bar 4, The other end of solar panel 148 is connected with guide extension bar 5, controls solar energy by the guide extension of guide extension bar 5 Angle of the cell panel 148 on bracing frame 147, can realize angular adjustment of the different periods to solar panel, reach the sun The optimal collection angle of light.
Fig. 4 seen finally, data communication units 3 include control chamber 31 on overhead transmission line electric pole, are built in control In case 31 with the radio-frequency module 32 of the communication of data acquisition indicating member 1, the panel 33 being built in control chamber 31, be built in control Power supply 34 in case processed 31, control chamber 31 are fixedly connected on electric pole by anchor ear, and the bottom of control chamber 31 is provided with fixation The riser of power supply 34, can prevent power supply heating from affecting the work of data communication units, improve radio-frequency module and control The service life of plate, power supply 34 are connected with power collector 149, and radio-frequency module 32 is connected with panel 33, radio-frequency module The communication of data communication units and data acquisition indicating member can be realized, power supply is connected with power collector, can guarantee that confession The continuous power supply of power supply, the setting of panel can realize that the information uploaded to data acquisition indicating member carries out processing concurrent Main control unit is delivered to, the setting of control chamber can be realized the installation of data communication units, can realize the small-sized of data communication units Change, install simple and convenient, panel 33 is provided with the observation circuit 35 of monitoring 149 charging voltage of power collector, observation circuit Setting, can effectively control the charging voltage of power collector, prevent the damage of power collector, improve security performance.
Main control unit 2 includes single-chip microcomputer 25, the note cat 26 for sending note, and single-chip microcomputer 25 is connected with note cat 26, Single-chip microcomputer 25 realizes the communication transfer of data, the single-chip microcomputer when accident classification occurs by GPRS or GPS and data communication units 3 25 control note cats 26 work, and note cat 26 sends fault alarm short message to the mobile phone of operator, display 24 with Single-chip microcomputer 25 is connected, and earth fault determination component 21, data communication interface 22, data processor 23 are arranged at single-chip microcomputer 25 Interior, single-chip microcomputer realizes the communication transfer of data with data communication units by GPRS or GPS, can meet the insulation of circuit and equipment Require, data transfer is reliable and stable.
Earth fault determination component 21 is by fundamental wave colony amplitude comparison than phase, quintuple harmonics than amplitude ratio phase, negative-sequence current method, letter The method of breath fusion realizes the route selection of faulty line, and earth fault determination component 21 passes through zero-sequence current phase method or is mutated mensuration Fault location is realized, respectively circuit is carried out than amplitude ratio phase and negative-sequence current method than phase, quintuple harmonics by fundamental wave colony amplitude comparison Failure line selection, can the data of different aforementioned sources or sensor acquisition be carried out interconnecting by set rule, it is related, estimate and tie Conjunction, to realize accurately and comprehensively describing process object, reaches higher data processing level, is avoided that single method is made Into failure, the accuracy of route selection, zero-sequence current phase method or the mensuration accuracy that can improve fault location of mutation are improved.
Location design of the fundamental wave colony amplitude comparison than phase:Carried out the comparison of zero-sequence current amplitude before this, select several amplitudes compared with It is big then to enter line phase on this basis and compare as candidate, if certain line direction is different from All other routes, for former Barrier circuit, it is identical if all of zero-sequence current phase place, then it is bus-bar fault.
Location design of the quintuple harmonics than amplitude ratio phase:As quintuple harmonics component is maximum in system, compare quintuple harmonics Amplitude and phase place, carry out the comparison of quintuple harmonics component before this, select several amplitudes it is larger as candidate, then here basis Enterprising line phase compares, if certain line direction is different from All other routes, for faulty line, if all of zero-sequence current Phase place is identical, then be bus-bar fault.
Negative-sequence current method location design:Negative-sequence current flows to power supply by trouble point and perfects circuit, trouble point negative-sequence current Size is equal to and flows to the negative-sequence current of power supply and flow to the negative-sequence current sum of circuit, therefore, the negative-sequence current of faulty line is remote More than the negative-sequence current for perfecting circuit, its direction is in opposite direction with the negative-sequence current for perfecting circuit and power supply.
The positioning principle of zero-sequence current phase method:As positive direction, the zero-sequence current of failure path is delayed in direction with circuit 90 degree of residual voltage, 90 degree of the advanced residual voltage of the zero-sequence current on non-faulting path;Zero-sequence current on failure path is not Disconnected increase, maximum is reached before trouble point;The zero-sequence current amplitude in non-faulting path is less, the zero-sequence current amplitude behind trouble point Constantly reduce along circuit positive direction.
The mensuration positioning principle of mutation:In the case where electrical network occurs singlephase earth fault, change the reactance of arc suppression coil It is worth, then the Parameters variation of arc suppression coil can cause the change of compensation inductive current, the change to cause zero of each point on faulty line Sequence electric current changes, and the zero-sequence current change on failure path is consistent with compensation curent change trend, and the zero of non-faulting path Sequence electric current is almost unchanged.
The principle of short trouble positioning:When circuit is short-circuited failure, 12 accurate measurements of fault detector are to electric current The factors such as mutation, size, time according to mutation current judge whether failure, if breaking down police instruction will be sent, while Fault message is issued by data communication units by radio-frequency module, data communication units are by signal processing and pack by GPRS Main control unit 2 is given, main control unit 2 provides failure path information and fault coverage information Jing after processing;Earth design Principle:When circuit occurs earth fault, main control unit 2 detects residual voltage appearance, notifies that each node uploads electric current letter Breath;A nodal information is selected to each bar outlet after main control unit 2 carries out route selection, by fundamental wave colony amplitude comparison than phase, five times it is humorous Bob amplitude ratio phase and negative-sequence current method, then select faulty line to use zero-sequence current phase place afterwards by the method for information fusion Fault location is realized in method (isolated neutral system) or mutation mensuration (arc suppression coil earthing system);Main control unit 2 calculates road of being out of order Footpath transmitting order to lower levels are by 1 action of data acquisition indicating member on failure path, and show failure path in daemon software, together When to user send fault alarm short message.
In addition to above preferred embodiment, the present invention also has other embodiments, and those skilled in the art can be according to this Invention is variously modified and deforms, and without departing from the spirit of the present invention, all should belong to claims of the present invention determined The scope of justice.

Claims (10)

  1. It is 1. a kind of to be based on overhead transmission line Earth design system, it is characterised in that:Including for gather load current in circuit, Data acquisition indicating member (1) to earth electric field and temperature information, the main control unit (2) for obtaining cable voltage, for connecing Data acquisition indicating member (1) information for uploading the data communication units (3) for sending information to main control unit (2) are received, it is main Control unit (2) is including earth fault determination component (21), data communication interface (22), data processor (23) and display (24) route selection and the fault location to circuit is realized by earth fault determination component (21), data communication interface (22) is realized With the communication of data communication units (3), data processor (23) can realize that the storage of data is calculated and is indicated to data acquisition single First (1) issues action command, and display (24) realizes the display of failure path.
  2. 2. according to claim 1 a kind of based on overhead transmission line Earth design system, it is characterised in that:Data acquisition Indicating member (1) including the suspension basket (11) being installed on overhead transmission line, be arranged on suspension basket (11) be used for monitor line electricity Flow the fault detector (12) of mutation, be built in suspension basket (11) for receiving the chip of fault detector (12) information (13), realize power supply module (14) that chip (13) powers, be arranged on suspension basket (11) instruction for being used for circuit failure Component (15), fault detector (12), power supply module (14), instruction component (15) are connected with chip (13), fault detector (12), indicate that component (15) is connected with power supply module (14) respectively.
  3. 3. according to claim 2 a kind of based on overhead transmission line Earth design system, it is characterised in that:Suspension basket (11) including case lid (111) and it is provided with the casing (112) of placed cavity (113), casing (112) and is provided with two pieces of vertical clapboards (114), chip (13) is arranged on two pieces of vertical clapboards (114), and the bottom of two pieces of vertical clapboards (114) is provided with horizontal cross plate (115), and the bottom of casing (112) is provided with the through hole (116) communicated with placed cavity (113), fault detector (12) is arranged on In through hole (116) and the top of fault detector (12) is contacted with horizontal cross plate (115), and instruction component (15) is arranged on case lid (111) on.
  4. 4. according to claim 3 a kind of based on overhead transmission line Earth design system, it is characterised in that:Power supply module (14) including power supply section (141) and charging part (142), power supply section (141) is connected with chip (13), charging part (142) with power supply Portion (141) is connected and realizes the continuous power supply of power supply section (141).
  5. 5. according to claim 4 a kind of based on overhead transmission line Earth design system, it is characterised in that:Power supply section (141) including box body (143) and accumulator (144), box body (143) is fixedly connected on casing (112), in accumulator (144) Put on box body (143), charging part (142) including the motor (145) being arranged on box body (143), be arranged on motor (145) Rotating disk (146), the bracing frame (147) being arranged on rotating disk (146), the solar panel being arranged on bracing frame (147) (148) power collector (149), power collector (149) and accumulator (144) phase, are connected with solar panel (148) Even.
  6. 6. according to claim 5 a kind of based on overhead transmission line Earth design system, it is characterised in that:Bracing frame (147) including fix bar (4) and guide extension bar (5), one end of solar panel (148) is connected with fix bar (4), the sun The other end of energy cell panel (148) is connected with guide extension bar (5), controls the sun by the guide extension of guide extension bar (5) Can angle of the cell panel (148) on bracing frame (147).
  7. 7. according to claim 5 a kind of based on overhead transmission line Earth design system, it is characterised in that:Data communication Unit (3) includes control chamber (31) on overhead transmission line electric pole, be built in control chamber (31) in indicate with data acquisition Radio-frequency module (32) that unit (1) is communicated, the panel (33) being built in control chamber (31), it is built in control chamber (31) Power supply (34), power supply (34) are connected with power collector (149), and radio-frequency module (32) is connected with panel (33).
  8. 8. according to claim 7 a kind of based on overhead transmission line Earth design system, it is characterised in that:Panel (33) it is provided with the observation circuit (35) of monitoring power collector (149) charging voltage.
  9. 9. according to claim 1 a kind of based on overhead transmission line Earth design system, it is characterised in that:Main control unit (2) including single-chip microcomputer (25), the note cat (26) for sending note, single-chip microcomputer (25) is connected with note cat (26), single-chip microcomputer (25) communication transfer of data, the single-chip microcomputer when accident classification occurs are realized by GPRS or GPS and data communication units (3) (25) note cat (26) work is controlled, display (24) is connected with single-chip microcomputer (25), and earth fault determination component (21), data are led to Letter interface (22), data processor (23) are arranged in single-chip microcomputer (25).
  10. 10. according to claim 9 a kind of based on overhead transmission line Earth design system, it is characterised in that:Ground connection event Barrier determination component (21) realizes faulty line than amplitude ratio phase and negative-sequence current method than phase, quintuple harmonics by fundamental wave colony amplitude comparison Route selection, earth fault determination component (21) is by zero-sequence current phase method or is mutated and mensuration realizes fault location.
CN201610948313.9A 2016-10-26 2016-10-26 Grounding fault locating system of overhead line Pending CN106597211A (en)

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Application Number Priority Date Filing Date Title
CN201610948313.9A CN106597211A (en) 2016-10-26 2016-10-26 Grounding fault locating system of overhead line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610948313.9A CN106597211A (en) 2016-10-26 2016-10-26 Grounding fault locating system of overhead line

Publications (1)

Publication Number Publication Date
CN106597211A true CN106597211A (en) 2017-04-26

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Application Number Title Priority Date Filing Date
CN201610948313.9A Pending CN106597211A (en) 2016-10-26 2016-10-26 Grounding fault locating system of overhead line

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108957232A (en) * 2018-07-18 2018-12-07 杭州新融方科技有限公司 A kind of distribution net work earthing fault detection processing and its operating method
CN110161372A (en) * 2019-05-15 2019-08-23 安徽亚辉电气自动化有限公司 A kind of phase-to-ground fault detection early warning system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108957232A (en) * 2018-07-18 2018-12-07 杭州新融方科技有限公司 A kind of distribution net work earthing fault detection processing and its operating method
CN110161372A (en) * 2019-05-15 2019-08-23 安徽亚辉电气自动化有限公司 A kind of phase-to-ground fault detection early warning system

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