CN109374954A - A kind of novel power transmission line parameter circuit value measurement test wire - Google Patents
A kind of novel power transmission line parameter circuit value measurement test wire Download PDFInfo
- Publication number
- CN109374954A CN109374954A CN201810957907.5A CN201810957907A CN109374954A CN 109374954 A CN109374954 A CN 109374954A CN 201810957907 A CN201810957907 A CN 201810957907A CN 109374954 A CN109374954 A CN 109374954A
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- line
- testing
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- circuit
- transmission line
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/145—Indicating the presence of current or voltage
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The present invention relates to a kind of novel power transmission line parameter circuit values to measure test wire, its technical characteristics is: being connected separately with the voltage tester line connection plug and testing current line plug for Connecting quantity measuring device in one end of voltage tester line and testing current line, it is connected with the connection fixture for connecting route to be measured in the other end of voltage tester line and testing current line, instrument side electrification alarm module, current monitoring module and line scan pickup coil side electrification alarm module are installed on voltage tester line and testing current line.The present invention has rational design, highly-safe, functional, transmission line parameter tester's line influence can be effectively reminded to charge situation, instrument and personal safety accident caused by reducing because of misoperation, current monitoring is provided simultaneously to show, testing crew clamp on amperemeter test current practice can be reduced, test efficiency is improved.
Description
Technical field
The invention belongs to transmission line of electricity technical field, especially a kind of novel power transmission line parameter circuit value measures test wire.
Background technique
Transmission line of electricity is the important component of electric system, and power frequency parameter is to carry out trend, transient stability and relay
The necessary parameter of the calculating work such as protection seting.Mainly power transmission line power frequency is joined using the method surveyed offline in engineering at present
Number is obtained, thus parameter measurement is to create or be transformed one of the commissioning test that must be carried out before transmission line of electricity puts into operation.
In recent years, it is mostly used to save land resource, raising transmission of electricity corridor utilization efficiency and transmission capacity, transmission line of electricity
Common-tower double-return or how back-shaped formula are set up.When transmission line of electricity parallel arrangement or scissors crossing, influenced by alive circuit is closed on, meeting
Generate higher electromagnetism or electrostatic induction voltage.This will carry out biggish interference to parameter measurement test tape, and can seriously threaten
The safety of test apparatus and personnel, thus R & D design has very with the measurement experimental rig and attachment of certain safeguard function
Important meaning.
Existing transmission line parameter measurement test wire is usually by instrument end connector, central conductor and equipment end fixture group
At only doing test connection and use, function is simple and without security protection effect.When carrying out transmission line parameter measurement test, examination
The personnel of testing disconnect line be easy by induced electricity injure, in special circumstances even cause the person electric shock casualty accident, and test before
With need to be monitored the electric current in p-wire using clamp on amperemeter in test, efficiency is insufficient and safety is poor.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of designs rationally, high safety and high-efficient
Novel power transmission line parameter circuit value measure test wire.
The present invention solves its technical problem and adopts the following technical solutions to achieve:
A kind of novel power transmission line parameter circuit value measures test wire, including a voltage tester line and a testing current line and leads to
It crosses insulating outer layer to be bundled together, is connected separately in one end of voltage tester line and testing current line and is measured for Connecting quantity
The voltage tester line plug and testing current line plug of device are connected in voltage tester line with the other end of testing current line useful
In the connection fixture for connecting transmission line of electricity to be measured, instrument side electrification police is installed on voltage tester line and testing current line
Show module, current monitoring module and line scan pickup coil side electrification alarm module.
The instrument side electrification alarm module and line scan pickup coil side electrification alarm module is by live testing circuit and acousto-optic report
Alert display connects and composes, in the live testing circuit connection to testing current line and voltage tester line.
The current monitoring module includes annular core, secondary coil, current-to-voltage converting circuit, amendment circuit, mould
Quasi- digital conversion circuit and digital display screen, the annular core are sleeved on testing current line, and the secondary coil is around being mounted in
On annular core, secondary coil, current-to-voltage converting circuit, amendment circuit, analog-to-digital conversion circuit and digital display screen according to
Secondary connection.
The voltage tester line connection plug and testing current line plug are plug-in metallic plug.
The connection fixture includes metal clamp and insulating protective sleeve, and one end of connection fixture is for connecting
Voltage tester line and testing current line, the other end of connection fixture is for connecting transmission line of electricity to be measured.
The advantages and positive effects of the present invention are:
1, the present invention is equipped with electrification alarm module and current detection module, not only has the test conduction of conventional test line
Outside function, and automatic electricity-testing and acousto-optic warning can be issued in time, while the induced current by testing line can be measured, for examination
It tests personnel and secure reference is provided；In transmission line parameter test process, which being capable of monitoring test line current letter
Number, test reference is provided for testing crew.
2, the present invention has rational design, highly-safe, functional, can effectively remind transmission line parameter tester's line
Road induction charging situation, instrument and personal safety accident caused by reducing because of misoperation, while current monitoring being provided and is shown, it can
It reduces testing crew and tests current practice with clamp on amperemeter, improve test efficiency.
Detailed description of the invention
Fig. 1 is circuit block diagram of the invention；
Fig. 2 is usage state diagram of the present invention
In figure, the ground terminal of 1- line parameter circuit value measuring device, 2- parameter measuring apparatus power supply terminal, 3- parameter measurement dress
The voltage signal mouth set, the current signal mouth of 4- parameter measuring apparatus, 5- voltage tester line connection plug, 6- testing current line are inserted
Head, 7- line scan pickup coil side jockey, 8- transmission line of electricity test lead to be measured, 9- instrument side charge alarm module, 10- current monitoring mould
Block, 11- line scan pickup coil side electrification alarm module, 12- instrument side live testing circuit module, 13- instrument side sound-light alarm display module,
14- annular core, 15- secondary coil, 16- current-to-voltage converting circuit, 17- amendment circuit, 18- analog-to-digital conversion circuit,
19- digital and electronic screen, 20- line scan pickup coil side live testing circuit, 21- line scan pickup coil side sound-light alarm display module,
Specific embodiment
The present invention is further described below in conjunction with attached drawing.
A kind of novel power transmission line parameter circuit value measures test wire, as shown in Figure 1, include voltage tester line and testing current line,
Instrument side connection plug (voltage tester line connection plug 5 and testing current line plug 6), instrument side charge alarm module 9, electric current
Monitoring modular 10, line scan pickup coil side electrification alarm module 11 and connection fixture.The voltage tester line and testing current line each one
Root is bundled together by insulating outer layer, and each by plug-in metallic plug (voltage tester line connection plug 5 and electric current
P-wire plug 6) it is attached with the corresponding signal port of parameter measuring apparatus.The electrification alarm module is by live testing electricity
Road and acousto-optic alarm indication connect and compose, in live testing circuit connection to testing current line and voltage tester line.The electricity
Stream monitoring modular includes annular core 14, secondary coil 15, current-to-voltage converting circuit 16, amendment circuit 17, simulation numeral turn
It changes circuit 18 and digital display screen 19 connects and composes, annular core is sleeved on testing current line, and secondary coil is around mounted in annular
On iron core, secondary coil, current-to-voltage converting circuit, amendment circuit, analog-to-digital conversion circuit and digital display screen successively connect
It connects.The connection fixture includes metal clamp and insulating protective sleeve, one end and voltage tester line and testing current line phase
Connection, the other end are articulated on transmission line of electricity to be measured by insulating bar.
Electrification alarm module of the invention charges situation to p-wire by live testing circuit and tests, if electrification
Sound-light alarm is then issued by sound-light alarm display module, testing crew is reminded to take care.In the current monitoring module
Annular core and secondary coil and testing current line electromagnetic coupling, current-to-voltage converting circuit is by the current signal in secondary coil
It is converted to voltage signal and carries out data acquisition, after amendment circuit is modified the signal of acquisition, pass through Analog-digital Converter electricity
Analog voltage signal is converted to digital signal by road, by digital display screen to the electric current real-time display for passing through p-wire, for examination
It tests personnel and induced current numerical value is provided before testing, prevent from damaging measuring instrument because induced current is excessive；In testing
Test current data is provided, provides current value reference for testing crew；It is used cooperatively with electrification alarm module, is shown in p-wire
In the case of electrification, testing crew is by checking current values, operation of taking care.
Application method of the invention are as follows: when carrying out transmission line parameter measurement test, need 3 test wires invented at all
Measuring device and A, B, C phase of route to be measured are attached.As shown in Fig. 2, before transmission line parameter test, first by line
1 reliable ground of ground terminal of road parameter measuring apparatus, then by the voltage tester line connection plug 5 and ginseng in the A phase present invention
The voltage signal mouth 3 of number measuring device connects, and testing current line plug 6 is connect with current signal mouth 4.Similarly, by B phase and C phase
P-wire is connect with parameter measuring apparatus.The line scan pickup coil side jockey 7 of A phase p-wire of the present invention is mounted by insulating bar
Onto the A phase of transmission line of electricity test lead 8 to be measured, B phase and C phase are similarly successively mounted.Parameter measuring apparatus power supply terminal 2 and standard
Experiment power supply is connected.
As shown in Figure 1, the instrument side electrification warning mould if there is induced electricity on transmission line of electricity to be measured, in the utility model p-wire
Block 9 and line scan pickup coil side electrification alarm module 11 can issue acousto-optic warning.Instrument side charges alarm module 9 and line scan pickup coil side electrification warning
The working principle of module 11 is identical, and corresponding live testing circuit module 12 is identical as live testing circuit 20, and sound-light alarm is aobvious
Show that module 13 is identical as sound-light alarm display module 21.Specific work process is introduced so that instrument side charges alarm module 9 as an example are as follows:
After p-wire is articulated on route to be measured, live testing circuit 12 detection can charge situation automatically, if thoughts on p-wire
Electricity is answered, live testing circuit 12 will issue instruction to sound-light alarm display module 13 and carry out acousto-optic warning, otherwise will not issue
Warning.The warning effect of sound-light alarm display module 13 are as follows: if p-wire charges, warning lamp is constantly in red highlighted shape
State, p-wire is not charged, then warning lamp does not work；When p-wire is never charged to electriferous state, then buzzer will start sounding 3
It is secondary, in lasting electriferous state, then buzzer not sounding.
When having induced current or test electric current in p-wire of the present invention, current monitoring module 10 understands the electric current that will be tested
Value is shown on digital and electronic screen 19.Specific work process are as follows: testing current line is worn from annular core 14 as primary coil
It crosses, secondary coil 15 is wound on iron core, when passing through alternating current in testing current line, will there is induction in secondary coil 15
Electric current passes through, and the current signal in secondary coil 15 is converted to voltage signal progress data and adopted by current-to-voltage converting circuit 16
Collection is converted analog voltage signal by analog-to-digital conversion circuit 18 after the signal of 17 pairs of circuit acquisitions of amendment is modified
For digital signal, by digital display screen 19 to the electric current real-time display for passing through p-wire.
It is emphasized that embodiment of the present invention be it is illustrative, without being restrictive, therefore packet of the present invention
Include and be not limited to embodiment described in specific embodiment, it is all by those skilled in the art according to the technique and scheme of the present invention
The other embodiments obtained, also belong to the scope of protection of the invention.
Claims (5)
1. a kind of novel power transmission line parameter circuit value measures test wire, including a voltage tester line and a testing current line and pass through
Insulating outer layer is bundled together, it is characterised in that: is connected separately in one end of voltage tester line and testing current line for connecting
The voltage tester line connection plug and testing current line plug for connecing parameter measuring apparatus, in voltage tester line and testing current line
The other end is connected with the connection fixture for connecting transmission line of electricity to be measured, installs on voltage tester line and testing current line
There are instrument side electrification alarm module, current monitoring module and line scan pickup coil side electrification alarm module.
2. a kind of novel power transmission line parameter circuit value according to claim 1 measures test wire, it is characterised in that: the instrument
End electrification alarm module and line scan pickup coil side electrification alarm module are connected and composed by live testing circuit and acousto-optic alarm indication, described
In live testing circuit connection to testing current line and voltage tester line.
3. a kind of novel power transmission line parameter circuit value according to claim 1 measures test wire, it is characterised in that: the electric current
Monitoring modular includes annular core, secondary coil, current-to-voltage converting circuit, amendment circuit, analog-to-digital conversion circuit sum number
Word display screen, the annular core are sleeved on testing current line, and the secondary coil is around on the annular core, secondary line
Circle, current-to-voltage converting circuit, amendment circuit, analog-to-digital conversion circuit and digital display screen are sequentially connected.
4. a kind of novel power transmission line parameter circuit value according to claim 1 measures test wire, it is characterised in that: the voltage is surveyed
It tries line connection plug and testing current line plug is plug-in metallic plug.
5. a kind of novel power transmission line parameter circuit value according to claim 1 measures test wire, it is characterised in that: the route
Jockey includes metal clamp and insulating protective sleeve, and one end of connection fixture is surveyed for connecting voltage tester line and electric current
Line is tried, the other end of connection fixture is for connecting transmission line of electricity to be measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810957907.5A CN109374954B (en) | 2018-08-22 | 2018-08-22 | Novel transmission line parameter measurement test line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810957907.5A CN109374954B (en) | 2018-08-22 | 2018-08-22 | Novel transmission line parameter measurement test line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109374954A true CN109374954A (en) | 2019-02-22 |
| CN109374954B CN109374954B (en) | 2020-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810957907.5A Active CN109374954B (en) | 2018-08-22 | 2018-08-22 | Novel transmission line parameter measurement test line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109374954B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111487499A (en) * | 2020-05-28 | 2020-08-04 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Non-contact line parameter measuring system and measuring method |
| CN112595881A (en) * | 2020-11-26 | 2021-04-02 | 国网天津市电力公司 | Test line electrification indicator and test line assembly |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2182410Y (en) * | 1994-01-12 | 1994-11-09 | 邵阳市中心技术交易市场 | Non-contacting electronic electrometering device |
| JPH08304500A (en) * | 1995-05-15 | 1996-11-22 | Shishido Seidenki Kk | Charged voltage meter |
| CN104051993A (en) * | 2014-06-10 | 2014-09-17 | 国家电网公司 | Cable protecting clamp |
| CN206387830U (en) * | 2016-12-07 | 2017-08-08 | 内蒙古电力(集团)有限责任公司鄂尔多斯电业局 | A kind of transformer synthesis termination |
| CN107132465A (en) * | 2017-06-29 | 2017-09-05 | 山东送变电工程公司 | A kind of line parameter circuit value auxiliary test unit and method |
| CN107247172A (en) * | 2017-06-22 | 2017-10-13 | 国网浙江义乌市供电公司 | It is a kind of can split measurement clamp on amperemeter |
| CN107894519A (en) * | 2017-12-01 | 2018-04-10 | 国网黑龙江省电力有限公司大庆供电公司 | 220kV and above more piece Zinc-Oxide Arrester integration test case |
-
2018
- 2018-08-22 CN CN201810957907.5A patent/CN109374954B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2182410Y (en) * | 1994-01-12 | 1994-11-09 | 邵阳市中心技术交易市场 | Non-contacting electronic electrometering device |
| JPH08304500A (en) * | 1995-05-15 | 1996-11-22 | Shishido Seidenki Kk | Charged voltage meter |
| CN104051993A (en) * | 2014-06-10 | 2014-09-17 | 国家电网公司 | Cable protecting clamp |
| CN206387830U (en) * | 2016-12-07 | 2017-08-08 | 内蒙古电力(集团)有限责任公司鄂尔多斯电业局 | A kind of transformer synthesis termination |
| CN107247172A (en) * | 2017-06-22 | 2017-10-13 | 国网浙江义乌市供电公司 | It is a kind of can split measurement clamp on amperemeter |
| CN107132465A (en) * | 2017-06-29 | 2017-09-05 | 山东送变电工程公司 | A kind of line parameter circuit value auxiliary test unit and method |
| CN107894519A (en) * | 2017-12-01 | 2018-04-10 | 国网黑龙江省电力有限公司大庆供电公司 | 220kV and above more piece Zinc-Oxide Arrester integration test case |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111487499A (en) * | 2020-05-28 | 2020-08-04 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Non-contact line parameter measuring system and measuring method |
| CN112595881A (en) * | 2020-11-26 | 2021-04-02 | 国网天津市电力公司 | Test line electrification indicator and test line assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109374954B (en) | 2020-11-13 |
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