CN207067294U - A kind of down conductor continuity test instrument - Google Patents

A kind of down conductor continuity test instrument Download PDF

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Publication number
CN207067294U
CN207067294U CN201720534398.6U CN201720534398U CN207067294U CN 207067294 U CN207067294 U CN 207067294U CN 201720534398 U CN201720534398 U CN 201720534398U CN 207067294 U CN207067294 U CN 207067294U
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CN
China
Prior art keywords
wire
main frame
test
power
down conductor
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.)
Expired - Fee Related
Application number
CN201720534398.6U
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Chinese (zh)
Inventor
陈佳柱
陈超柱
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.)
Wuhan Top Joint Power Equipment Co Ltd
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Wuhan Top Joint Power Equipment 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
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Priority to CN201720534398.6U priority Critical patent/CN207067294U/en
Application granted granted Critical
Publication of CN207067294U publication Critical patent/CN207067294U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a kind of down conductor continuity test instrument, it includes test main frame, p-wire, power line and ground wire, the test main frame is connected with the p-wire, power line, ground wire respectively, the p-wire is used to connect tested ground connection and test main frame, form conducting loop, for to tested ground connection output current, testing its earth-continuity;The power line is used to connect power network, and electric energy supply is provided for test main frame;The ground wire is used for the ground connection of connecting test main frame, prevents that the positions such as test main frame shell are powered and cause operating personnel's accidental shock.It is used for the measurement of the conduction resistance value between each power equipment down conductor in transformer station.Instrument is controlled using High Performance SCM, and test process intellectuality can be achieved, have small volume, easy to carry, and simple to operate, precision is high, and test speed is fast, and repetition measurement is good, and reading is directly perceived, is the preferable instrumentation for meeting regulatory requirements.

Description

A kind of down conductor continuity test instrument
Technical field
The utility model belongs to field of electrical equipment, more particularly to a kind of down conductor continuity test instrument.
Background technology
Reliable, the effective connection of the down conductor and earth mat of power equipment is the basic guarantee of equipment safety operation.Connect Ground downlead is the coupling part of power equipment and earth mat, and during the long-play of power equipment, junction is possible to Because making moist etc., factor influences, and phenomena such as contact corrosion, be even broken occurs, and causes down conductor and main grounding grid tie point electricity Resistance increase, so as to meet the requirement of electric power code, makes equipment hidden danger in operation be present, can cause to set when serious Run in standby lost territory.Therefore exist《Prevent 25 important requirements of power generation major accident》In, clearly propose earthing or grounding means The conduction detection work of downlead should be carried out once every year.
Utility model content
The defects of in order to overcome prior art, the utility model provide a kind of down conductor continuity test instrument, and it is used for The measurement of conduction resistance value in transformer station between each power equipment down conductor.Instrument uses High Performance SCM control System, test process intellectuality can be achieved, there is small volume, easy to carry, simple to operate, precision is high, and test speed is fast, repetition measurement Good, reading is directly perceived, is the preferable instrumentation for meeting regulatory requirements.
Specifically, the utility model provides a kind of down conductor continuity test instrument, it include test main frame, p-wire, Power line and ground wire, the test main frame are connected with the p-wire, power line and ground wire respectively,
The p-wire is used to connect tested ground connection and test main frame, tested ground connection is formed with test main frame and turns on back Road, for tested ground connection output current, testing its earth-continuity;
The power line is used to connect power network, for providing electric energy supply for test main frame;
The ground wire is used for the ground connection of connecting test main frame;
The test main frame includes shell, the guidance panel for being arranged on case surface, the power supply mould of setting inside the housing Block, chargeable lithium cell, controller, memory, measurement current generating unit and measurement collecting unit, the controller difference Connected with the guidance panel, measurement current generating unit and measurement collecting unit communication.
Preferably, the p-wire is four core shielding lines, and the p-wire is provided with line wheel, and the p-wire is wrapped in institute State in line wheel, the crank for being easy to shake line wheel storage p-wire is provided with the line wheel.
Preferably, the guidance panel is pressed including power outlet, power switch, ground stud, indicator lamp, display screen, operation Key, calibrating terminal and printer, the calibrating terminal are the low copper binding post of four resistance values.
Preferably, the power line output connects the power outlet, and the power switch is used to control power input Cut-out and closure, the power module include AC transformer, rectification filtering unit and pressure unit, and the power module is used for Mains electric rectification is depressurized to the direct current for being available for tester to use.
Preferably, the chargeable lithium cell is in the case where tester is not connected with power line, for being provided for tester Electric energy.
Preferably, the measurement current generating unit is used to produce the electricity for testing according to the instruction of the controller Stream, and the p-wire by being connected on calibrating terminal, to tested ground connection power supply, the measurement collecting unit, which is used to collect, to be surveyed Examination data simultaneously transmit the test data to controller.
Preferably, the controller storage inside has resistance threshold, tested to connect when the resistance of measurement is more than resistance threshold The conduction of ground and the earth is poor.
Preferably, the controller stores the result of measurement into the memory.
Compared with prior art, the utility model has the advantages that:
The utility model provides a kind of down conductor continuity test instrument, and it is used for each power equipment ground connection in transformer station The measurement of conduction resistance value between downlead.Instrument is controlled using High Performance SCM, and test process intellectuality, tool can be achieved There is small volume, easy to carry, simple to operate, precision is high, and test speed is fast, and repetition measurement is good, and reading is directly perceived, is to meet regulatory requirements Preferable instrumentation.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is structural schematic block diagram of the present utility model.
Embodiment
Describe exemplary embodiment, feature and the aspect of the present invention in detail below with reference to accompanying drawing.Identical is attached in accompanying drawing Icon note represents the same or analogous element of function.Although the various aspects of embodiment are shown in the drawings, unless special Do not point out, it is not necessary to accompanying drawing drawn to scale.
Compared with prior art, the utility model has the advantages that:
The utility model provides a kind of down conductor continuity test instrument, and it includes test main frame 1, p-wire 2, power line 3 and ground wire 4, the test main frame 1 be connected respectively with the p-wire 2, power line 3, ground wire 4.
The p-wire 2 is used to connect tested ground connection and test main frame, forms conducting loop, for being exported to tested ground connection Electric current, test its earth-continuity;
The power line 3 is used to connect power network, and electric energy supply is provided for test main frame;
The ground wire 4 is used for the ground connection of connecting test main frame, prevents that the positions such as test main frame shell are powered and cause to operate Personnel's accidental shock;
The test main frame 1 includes shell 100, is arranged on the guidance panel 101 on the surface of shell 100, is arranged on operating surface Power module 18, chargeable lithium cell 13, controller 14, memory 15 inside plate 101, measurement current generating unit 16 and Measure collecting unit 17, the controller respectively with the guidance panel, measurement current generating unit and measurement collecting unit Connection.
Preferably, the p-wire is four core shielding lines, and the p-wire is provided with line wheel, and the p-wire is wrapped in institute State in line wheel, the crank for being easy to shake line wheel storage p-wire is provided with the line wheel.
Preferably, the guidance panel 101 includes power outlet 5, power switch 6, ground stud 7, indicator lamp 8, display screen 9th, Cao Zuoanjian 10, calibrating terminal 11 and printer 12, the calibrating terminal are the low copper wiring of four resistance values Post.
Preferably, the output of power line 3 connects the power outlet, and the power switch is used to control power input Cut-out and closure, the power module 12 include AC transformer, rectification filtering unit and pressure unit, and the power module is used In mains electric rectification to be depressurized to the direct current that is available for tester to use.
Preferably, the chargeable lithium cell is in the case of not connected power line, for providing electric energy work(for tester Can, when connecting power line, the power module charges to chargeable lithium cell.
Preferably, operating personnel carry out various operations using display screen and Cao Zuoanjian, the operational order can transmit to The controller, mode of operation and measurement result can be shown on the display.
Preferably, the measurement current generating unit is used to produce the electricity for testing according to the instruction of the controller Stream, tested ground connection is powered by the p-wire being connected on calibrating terminal, the measurement collecting unit, which is used to collect, to be tested Data, transmit to controller, compared with the measured value of controller storage inside, verify earth-continuity performance.
Specifically, the calibrating terminal be divided into electric current just, electric current is negative, voltage just and voltage negative, the measurement electric current Generation unit and electric current just, the negative connection of electric current, four cores and the calibrating terminal of p-wire are also to correspond, the electric current of p-wire Just, the tested ground connection of voltage just connection, the electric current of the p-wire is negative, voltage negative connection (thinks that connection is good with reference to ground connection Ground connection, it is considered to be big ground terminal), the measurement collecting unit connection voltage just, voltage negative, when test electric current measured body with it is big When loop is formed between ground, because connection resistance can form voltage difference between ground connection and the earth, the measurement collecting unit measures its electricity Pressure difference, using Ohm's law, the connection resistance between tested ground connection and the earth is calculated, obtains institute's measuring resistance value.
The resistance threshold that institute's measuring resistance value stores with the controller compares, when institute's measuring resistance value is more than resistance threshold When, illustrate tested ground connection with the conduction difference of the earth, it is necessary to adjust.
The controller 14 stores the result of measurement into the memory, and user transfers history by Cao Zuoanjian Record is shown in the display screen.
The utility model provides a kind of down conductor continuity test instrument, and it is used for each power equipment ground connection in transformer station The measurement of conduction resistance value between downlead.Instrument is controlled using High Performance SCM, and test process intellectuality, tool can be achieved There is small volume, easy to carry, simple to operate, precision is high, and test speed is fast, and repetition measurement is good, and reading is directly perceived, is to meet regulatory requirements Preferable instrumentation.
Finally it should be noted that:Above-described each embodiment is merely to illustrate the technical solution of the utility model, rather than It is limited;Although the utility model is described in detail with reference to the foregoing embodiments, one of ordinary skill in the art It should be understood that:It can still modify to the technical scheme described in previous embodiment, or to which part or whole Technical characteristic carries out equivalent substitution;And these modifications or substitutions, the essence of appropriate technical solution is departed from the utility model The scope of each embodiment technical scheme.

Claims (8)

  1. A kind of 1. down conductor continuity test instrument, it is characterised in that:It includes test main frame, p-wire, power line and ground Line, the test main frame are connected with the p-wire, power line and ground wire respectively,
    The p-wire is used to connect tested ground connection and test main frame, tested ground connection is formed conducting loop with test main frame, uses In to tested ground connection output current, its earth-continuity is tested;
    The power line is used to connect power network, for providing electric energy supply for test main frame;
    The ground wire is used for the ground connection of connecting test main frame;
    The test main frame include shell, the guidance panel for being arranged on case surface, power module inside the housing is set, can Charged lithium cells, controller, memory, measurement current generating unit and measurement collecting unit, the controller respectively with institute State guidance panel, measurement current generating unit and measurement collecting unit communication connection.
  2. 2. down conductor continuity test instrument according to claim 1, it is characterised in that:The p-wire shields for four cores Line, the p-wire are provided with line wheel, and the p-wire is wrapped in the line wheel, are provided with the line wheel and are easy to shake line The crank of wheel storage p-wire.
  3. 3. down conductor continuity test instrument according to claim 1, it is characterised in that:The guidance panel includes power supply Socket, power switch, ground stud, indicator lamp, display screen, Cao Zuoanjian, calibrating terminal and printer, the test wiring Post is the low copper binding post of four resistance values.
  4. 4. down conductor continuity test instrument according to claim 3, it is characterised in that:The output end of the power line connects The power outlet is connect, the power switch is used for cut-out and the closure for controlling power input, and the power module includes exchange Transformer, rectification filtering unit and pressure unit, the power module are used to mains electric rectification being depressurized to be available for surveying The direct current that examination instrument uses.
  5. 5. down conductor continuity test instrument according to claim 1, it is characterised in that:The chargeable lithium cell is being surveyed In the case of trying the not connected power line of instrument, for providing electric energy for tester.
  6. 6. down conductor continuity test instrument according to claim 1, it is characterised in that:The measurement current generating unit For producing the electric current for testing, and the p-wire pair by being connected on calibrating terminal according to the instruction of the controller Tested ground connection power supply, the measurement collecting unit are used to collect test data and transmit the test data to controller.
  7. 7. down conductor continuity test instrument according to claim 1, it is characterised in that:The controller storage inside has Resistance threshold, when the resistance of measurement is more than resistance threshold, it is poor with the conduction of the earth to be tested ground connection.
  8. 8. down conductor continuity test instrument according to claim 1, it is characterised in that:The controller is by the knot of measurement Fruit is stored into the memory.
CN201720534398.6U 2017-05-16 2017-05-16 A kind of down conductor continuity test instrument Expired - Fee Related CN207067294U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720534398.6U CN207067294U (en) 2017-05-16 2017-05-16 A kind of down conductor continuity test instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720534398.6U CN207067294U (en) 2017-05-16 2017-05-16 A kind of down conductor continuity test instrument

Publications (1)

Publication Number Publication Date
CN207067294U true CN207067294U (en) 2018-03-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720534398.6U Expired - Fee Related CN207067294U (en) 2017-05-16 2017-05-16 A kind of down conductor continuity test instrument

Country Status (1)

Country Link
CN (1) CN207067294U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109100573A (en) * 2018-10-09 2018-12-28 广东电网有限责任公司 A kind of earthing test handheld terminal
CN109100604A (en) * 2018-10-09 2018-12-28 广东电网有限责任公司 A kind of earth-return circuit continuity test system
WO2023230031A1 (en) * 2022-05-23 2023-11-30 Ideal Industries, Inc. Integrated tool with circuit tracer, receptacle tester, and/or load continuity tester

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109100573A (en) * 2018-10-09 2018-12-28 广东电网有限责任公司 A kind of earthing test handheld terminal
CN109100604A (en) * 2018-10-09 2018-12-28 广东电网有限责任公司 A kind of earth-return circuit continuity test system
WO2023230031A1 (en) * 2022-05-23 2023-11-30 Ideal Industries, Inc. Integrated tool with circuit tracer, receptacle tester, and/or load continuity tester

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

Granted publication date: 20180302

Termination date: 20210516