CN106383259A - Induced current and inducted voltage measurement method of multi-circuit transmission lines on same tower - Google Patents
Induced current and inducted voltage measurement method of multi-circuit transmission lines on same tower Download PDFInfo
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- CN106383259A CN106383259A CN201610806858.6A CN201610806858A CN106383259A CN 106383259 A CN106383259 A CN 106383259A CN 201610806858 A CN201610806858 A CN 201610806858A CN 106383259 A CN106383259 A CN 106383259A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 28
- 238000000691 measurement method Methods 0.000 title abstract description 3
- 238000005259 measurement Methods 0.000 claims abstract description 44
- 238000000034 method Methods 0.000 claims abstract description 28
- 230000006698 induction Effects 0.000 claims abstract description 19
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 16
- 238000012423 maintenance Methods 0.000 claims description 110
- 238000012360 testing method Methods 0.000 claims description 30
- 230000005611 electricity Effects 0.000 claims description 28
- 230000008878 coupling Effects 0.000 claims description 21
- 238000010168 coupling process Methods 0.000 claims description 21
- 238000005859 coupling reaction Methods 0.000 claims description 21
- 230000003068 static effect Effects 0.000 claims description 13
- 230000008859 change Effects 0.000 claims description 10
- 239000003990 capacitor Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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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
- G01R19/0046—Arrangements for measuring currents or voltages or for indicating presence or sign thereof characterised by a specific application or detail not covered by any other subgroup of G01R19/00
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The present invention discloses an induced current and inducted voltage measurement method of multi-circuit transmission lines on the same tower. The method comprises: determining the upkeep loop in the multi-circuit transmission lines on the same tower which have faults; changing the upkeep loop grounding mode; and employing a measurement instrument to measure the upkeep loop to obtain the corresponding inducted current and inducted voltage, wherein the inducted current includes electro-magnetic induction current and the electrostatic induction current, and the inducted voltage includes electro-magnetic induction voltage and the electrostatic induction voltage. After the multi-circuit transmission lines on the same tower have faults, through changing the grounding mode of the upkeep loop, a measurement instrument with simple operation is employed to conveniently and rapidly measure the inducted current and the inducted voltage of the upkeep loop, and because the measurement instrument is directly accessed into the upkeep loop for measurement, and the accuracy of the measurement result is relatively high, so that the technical problems can be solved that the measurement data accuracy is low and the operation of a device is complex in the prior art.
Description
Technical field
The present invention relates to ultra-high-tension power transmission line field of measuring technique, particularly to a kind of sensing of multiple-loop line transmission line of electricity
Electric current and induced voltage measuring method.
Background technology
With the development of China's industrial level, high voltage power transmission be to ensure that productive life run well an important ring.When
When in exchange multiple-loop line transmission line of electricity, break down and have a power failure in a certain road, easily induced voltage in power failure loop, for example,
The electromagnetic induction voltage of 500kV electric pressure is up to 6kV, the induced voltage therefore in line maintenance, on interruption maintenance loop
With faradic current, Construction and Maintenance personnel are caused with very big threat.
At present, China only carries out electrical verification measure to transmission line of electricity interruption maintenance it is impossible to accurately judge the concrete faradism of wire
Pressure value and current value are examined it is impossible to provide accurate data to wipe for Construction and Maintenance personnel.Measurement in prior art, to induced voltage
Mostly calculate the induced voltage of wire by measurement space field intensity, the method is measured due to indirect, there is data inaccurate
Probability, meanwhile, measuring instrument is complicated, relatively costly, and complex operation for maintainer.
Therefore, how using measuring instrument simple to operate, easily and accurately measure maintenance loop induced voltage and
Faradic current is the current technical issues that need to address.
Content of the invention
In view of this, it is an object of the invention to provide a kind of faradic current of multiple-loop line transmission line of electricity and induced voltage
Measuring method, by changing the maintenance loop earthing mode in the multiple-loop line route road broken down, thus simple and conveniently
Measure corresponding faradic current and induced voltage using measuring instrument.Its concrete scheme is as follows：
A kind of faradic current of multiple-loop line transmission line of electricity and induced voltage measuring method, including：
Confirm the maintenance loop in the multiple-loop line transmission line of electricity breaking down；
Change described maintenance loop earthing mode；
Using measuring instrument, described maintenance loop is measured, obtains corresponding faradic current and induced voltage,
Wherein, described faradic current includes em induced current and static induced current, and described induced voltage includes electromagnetism
Induced voltage and electrostatic induction voltage.
Preferably, described measuring instrument is clamp on amperemeter and no partial discharge coupling capacitive divider.
Preferably, described maintenance loop ground connection, the step described maintenance loop being measured using described measuring instrument are changed
Including：
By described maintenance loop two-terminal-grounding, measure em induced current using described clamp on amperemeter；
Described maintenance loop one end is grounded, using described clamp on amperemeter measurement static induced current electrostatic induction electricity
Stream, measures electromagnetic induction voltage using described no partial discharge coupling capacitive divider；
Will be earth-free for described maintenance loop two ends, using described no partial discharge coupling capacitive divider measurement electrostatic induction electricity
Pressure.
Preferably, the step of described measurement em induced current includes：
Described maintenance loop two-termial line is disconnected, and by described maintenance loop two-terminal-grounding；
Hang three-phase test wiring in described maintenance loop one end, wherein, described three-phase test wiring one end connects described
Maintenance loop, the other end is grounded；
Test wiring by described clamp on amperemeter to described three-phase to measure respectively, obtain described electromagnetic induction electricity
Stream.
Preferably, the step of described measurement static induced current includes：
Described maintenance loop two-termial line is disconnected, and described maintenance loop one end is grounded；
Hang described three-phase in described maintenance loop earth terminal and test wiring, wherein, described three-phase test wiring one end is even
Connect described maintenance loop, the other end is grounded；
Test wiring by described clamp on amperemeter to described three-phase to measure respectively, obtain described electrostatic induction electricity
Stream.
Preferably, the step of described measurement electromagnetic induction voltage includes：
Described maintenance loop two-termial line is disconnected, and maintenance loop one end ground connection will be stated；
Test wiring by described no partial discharge coupling capacitive divider to described three-phase to measure respectively, obtain described electricity
Magnetic induction voltage,
Wherein, described no partial discharge coupling capacitive divider one end connects the ungrounded end in described maintenance loop, and the other end is grounded.
Preferably, the step of described measurement electrostatic induction voltage includes：
Described maintenance loop two-termial line is disconnected, and will be earth-free for described maintenance loop two ends；
Test wiring by described no partial discharge coupling capacitive divider to described three-phase to measure respectively, obtain described quiet
Electric induction voltage,
Wherein, described no partial discharge coupling capacitive divider one end connects described maintenance loop one end, and the other end is grounded.
The invention discloses a kind of faradic current of multiple-loop line transmission line of electricity and induced voltage measuring method, confirm to occur
Maintenance loop in the multiple-loop line transmission line of electricity of fault；Change described maintenance loop earthing mode；Using measuring instrument to upper
State the measurement of maintenance loop, obtain corresponding faradic current and induced voltage, wherein, faradic current includes em induced current and quiet
Inductance induced current, induced voltage includes electromagnetic induction voltage and electrostatic induction voltage.It can be seen that when multiple-loop line route in the present invention
After breaking down in road, using measuring instrument simple to operate, by changing the earthing mode in maintenance loop, conveniently and efficiently measure
Go out to overhaul faradic current and the induced voltage in loop, simultaneously as measuring instrument is directly accessed maintenance loop measuring, measurement
The accuracy of result is of a relatively high, thus solving measurement data poor accuracy in prior art, the technology of equipment operation complexity
Problem, has reached using measuring instrument simple to operate, easily and accurately measures induced voltage and the faradism in maintenance loop
The technique effect on road.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing providing obtains other accompanying drawings.
Fig. 1 is a kind of faradic current of multiple-loop line transmission line of electricity and induced voltage measurement side disclosed in the embodiment of the present invention
Method flow chart；
Fig. 2 is the ground connection schematic diagram of the em induced current in the embodiment of the present invention disclosed measurement maintenance loop；
Fig. 3 is the testing circuit schematic diagram of the em induced current in the embodiment of the present invention disclosed measurement maintenance loop；
Fig. 4 is the ground connection schematic diagram of the static induced current in the embodiment of the present invention disclosed measurement maintenance loop；
Fig. 5 is the testing circuit schematic diagram of the static induced current in the embodiment of the present invention disclosed measurement maintenance loop；
Fig. 6 is the ground connection schematic diagram of the electromagnetic induction voltage in the embodiment of the present invention disclosed measurement maintenance loop；
Fig. 7 is the testing circuit schematic diagram of the electromagnetic induction voltage in the embodiment of the present invention disclosed measurement maintenance loop；
Fig. 8 is the ground connection schematic diagram of the electrostatic induction voltage in the embodiment of the present invention disclosed measurement maintenance loop；
Fig. 9 is the testing circuit schematic diagram of the electrostatic induction voltage in the embodiment of the present invention disclosed measurement maintenance loop.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
The embodiment of the invention discloses a kind of faradic current of multiple-loop line transmission line of electricity and induced voltage measuring method, such as
Shown in Fig. 1, specifically include below step S1-S3：
Step S1：Confirm the maintenance loop in the multiple-loop line transmission line of electricity breaking down.
In the embodiment of the present invention, when line failure a certain in multiple-loop line transmission line of electricity, need to disconnect this power transmission line
The circuit disconnecting link of road two ends transformer station, makes this transmission line of electricity be in inspecting state, thus to this multiple-loop line road transmission line of electricity
Maintenance loop is determined.The mode of open-circuit line can make circuit electric brake or the open-circuit line at open-circuit line two ends
Two ends transformators connect.
Step S2：Change above-mentioned maintenance loop earthing mode.
In the embodiment of the present invention, change the substation grounding that maintenance loop earthing mode can be by overhauling loop two ends
Plug-in strip lock, it would however also be possible to employ loop ground connection will be overhauled by earth lead.
It is understood that the earthing mode changing maintenance loop is divided three classes：One end ground connection, two-terminal-grounding, two ends are equal
Earth-free.
Step S3：Using measuring instrument, above-mentioned maintenance loop is measured, obtains corresponding faradic current and induced voltage,
Wherein, above-mentioned faradic current includes em induced current and static induced current, and above-mentioned induced voltage includes electromagnetism
Induced voltage and electrostatic induction voltage.
Overhaul in the inventive embodiments of loop earthing mode in above-mentioned change, the different sensing of different earthing mode correspondences
Electric current or induced voltage.The electromagnetism sense in maintenance loop when overhauling loop two-terminal-grounding, now can be measured by measuring instrument
Induced current；When overhaul loop one end ground connection when, now can by measuring instrument measurement maintenance loop static induced current with
Electromagnetic induction voltage；When maintenance loop two ends are all earth-free, the electrostatic in maintenance loop now can be measured by measuring instrument
Induced voltage.
In the embodiment of the present invention, measuring instrument is directly accessed maintenance loop and measures sensor circuit or induced voltage.
During measurement, measuring instrument can be directly accessed in maintenance loop and measure, and now measuring instrument one end connects maintenance loop, another
End ground connection.Certainly, the present invention also for example, will be able to be examined using the faradic current in other modes measurement maintenance loop or induced voltage
Repair loop connecting test wire, and wire other end ground connection, maintenance loop is obtained by measurement faradic to wire
Faradic current.
The invention discloses a kind of faradic current of multiple-loop line transmission line of electricity and induced voltage measuring method, confirm to occur
Maintenance loop in the multiple-loop line transmission line of electricity of fault；Change above-mentioned maintenance loop earthing mode；Using measuring instrument to upper
State the measurement of maintenance loop, obtain corresponding faradic current and induced voltage, wherein, faradic current includes em induced current and quiet
Inductance induced current, induced voltage includes electromagnetic induction voltage and electrostatic induction voltage.It can be seen that when multiple-loop line route in the present invention
After breaking down in road, the simple measuring instrument of access operation, by changing the earthing mode in maintenance loop, conveniently and efficiently measure
Go out to overhaul faradic current and the induced voltage in loop, simultaneously as measuring instrument is directly accessed maintenance loop measuring, measurement
The accuracy of result is of a relatively high, thus solving measurement data poor accuracy in prior art, the technology of equipment operation complexity
Problem, has reached using measuring instrument simple to operate, easily and accurately measures induced voltage and the faradism in maintenance loop
The technique effect on road.
The embodiment of the invention discloses a kind of faradic current of specific multiple-loop line transmission line of electricity and induced voltage measurement
Method, with respect to a upper embodiment, the present embodiment has made further instruction and optimization to technical scheme.Specifically：
In the embodiment of the present invention, in order to reduce operation, improve and measure convenient degree, measuring instrument select clamp on amperemeter and
No partial discharge coupling capacitive divider.Wherein, clamp on amperemeter is used for measuring faradic current, and no partial discharge coupling capacitive divider is used for
Measurement induced voltage.
It is understood that clamp on amperemeter with respect to common current table have the characteristics that measurement simple and convenient it is not necessary to
Ammeter is connected into circuit the electric current in circuit can be measured.Therefore,
In foregoing invention embodiment, change above-mentioned maintenance loop ground connection, using above-mentioned measuring instrument, above-mentioned maintenance is returned
The step of drive test amount includes：
Step S4:By above-mentioned maintenance loop two-terminal-grounding, described clamp on amperemeter is now utilized to measure em induced current；
Step S5：Above-mentioned maintenance loop one end is grounded, now utilizes described clamp on amperemeter to measure static induced current,
Measure electromagnetic induction voltage using described no partial discharge coupling capacitive divider；
Step S6：Will be earth-free for above-mentioned maintenance loop two ends, now utilize described no partial discharge coupling capacitive divider measurement
Electrostatic induction voltage.
It is understandable that above-mentioned steps S4-6 are no successively distinguished.
Referring to shown in Fig. 2 and Fig. 3, in the embodiment of the present invention, the step of measurement em induced current includes：
Disconnect the first transformer station and overhaul loop-coupled circuit electric brake and grounding switch, disconnect the second transformer station and maintenance
Loop-coupled circuit electric brake and grounding switch are it is ensured that disconnect and two-terminal-grounding above-mentioned maintenance loop two-termial line；Upper
State maintenance loop one end and hang three-phase test wiring, wherein, above-mentioned three-phase test wiring one end connects above-mentioned maintenance loop, another
End ground connection；Test wiring by above-mentioned clamp on amperemeter to above-mentioned three-phase to measure respectively, obtain em induced current.
It is understood that guaranteeing that above-mentioned maintenance loop ground connection may also take on the mode connecting earth lead.
Referring to shown in Fig. 4 and Fig. 5, in the embodiment of the present invention, the step of measurement static induced current includes：
Disconnect the first transformer station and overhaul loop-coupled circuit electric brake and grounding switch, disconnect the second transformer station and maintenance
Loop-coupled circuit electric brake is it is ensured that disconnect above-mentioned maintenance loop two-termial line, and above-mentioned maintenance loop and the first power transformation
Stand connection end ground connection；Hang above-mentioned three-phase in above-mentioned maintenance loop earth terminal and test wiring, wherein, above-mentioned three-phase tests wiring one
End connects above-mentioned maintenance loop, and the other end is grounded；Test wiring by above-mentioned clamp on amperemeter to above-mentioned three-phase to survey respectively
Amount, obtains static induced current.
It is understood that guaranteeing that above-mentioned maintenance loop ground connection may also take on the mode connecting earth lead.
Referring to shown in Fig. 6 and Fig. 7, in the embodiment of the present invention, the step of above-mentioned measurement electromagnetic induction voltage includes：
Disconnect the first transformer station and overhaul loop-coupled circuit electric brake, disconnect the second transformer station loop-coupled with maintenance
Circuit electric brake and grounding switch are it is ensured that disconnect above-mentioned maintenance loop two-termial line, and above-mentioned maintenance loop and the second power transformation
Stand connection end ground connection；Test wiring by above-mentioned no partial discharge coupling capacitive divider to above-mentioned three-phase to measure respectively, obtain
Electromagnetic induction voltage, wherein, above-mentioned no partial discharge coupling capacitive divider one end connects the ungrounded end in above-mentioned maintenance loop, the other end
Ground connection.
It is understood that guaranteeing that above-mentioned maintenance loop ground connection may also take on the mode connecting earth lead.
Referring to shown in Fig. 8 and Fig. 9, in the embodiment of the present invention, the step of above-mentioned measurement electrostatic induction voltage includes：
Disconnect the first transformer station and overhaul loop-coupled circuit electric brake, disconnect the second transformer station loop-coupled with maintenance
Circuit electric brake it is ensured that by above-mentioned maintenance loop two-termial line disconnect and two ends are all earth-free；By above-mentioned no partial discharge coupling electricity
Hold potentiometer the test wiring of above-mentioned three-phase is measured respectively, obtain electrostatic induction voltage, wherein, above-mentioned no partial discharge coupling electricity
Hold potentiometer one end and connect above-mentioned maintenance loop one end, the other end is grounded.
Last in addition it is also necessary to explanation, herein, such as first and second or the like relational terms be used merely to by
One entity or operation are made a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between there is any this actual relation or order.And, term " inclusion ", "comprising" or its any other variant meaning
Covering comprising of nonexcludability, so that including a series of process of key elements, method, article or equipment not only include that
A little key elements, but also include other key elements being not expressly set out, or also include for this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element being limited by sentence "including a ...", does not arrange
Remove and also there is other identical element in the process including described key element, method, article or equipment.
Above to a kind of faradic current of multiple-loop line transmission line of electricity provided by the present invention and induced voltage measuring method
It is described in detail, specific case used herein is set forth to the principle of the present invention and embodiment, above reality
The explanation applying example is only intended to help and understands the method for the present invention and its core concept；General technology simultaneously for this area
Personnel, according to the thought of the present invention, all will change in specific embodiments and applications, in sum, this theory
Bright book content should not be construed as limitation of the present invention.
Claims (7)
1. a kind of faradic current of multiple-loop line transmission line of electricity and induced voltage measuring method are it is characterised in that include：
Confirm the maintenance loop in the multiple-loop line transmission line of electricity breaking down；
Change described maintenance loop earthing mode；
Using measuring instrument, described maintenance loop is measured, obtains corresponding faradic current and induced voltage,
Wherein, described faradic current includes em induced current and static induced current, and described induced voltage includes electromagnetic induction
Voltage and electrostatic induction voltage.
2. faradic current according to claim 1 and induced voltage measuring method are it is characterised in that described measuring instrument is
Clamp on amperemeter and no partial discharge coupling capacitive divider.
3. faradic current according to claim 2 and induced voltage measuring method are it is characterised in that change described maintenance back
Road is grounded, and is included using the step that described measuring instrument measures to described maintenance loop：
By described maintenance loop two-terminal-grounding, measure em induced current using described clamp on amperemeter；
Described maintenance loop one end is grounded, measures static induced current using described clamp on amperemeter, put using described no office
Coupled capacitor potentiometer measures electromagnetic induction voltage；
Will be earth-free for described maintenance loop two ends, measure electrostatic induction voltage using described no partial discharge coupling capacitive divider.
4. faradic current according to claim 3 and induced voltage measuring method are it is characterised in that described measurement electromagnetism sense
The step of induced current includes：
Described maintenance loop two-termial line is disconnected, and by described maintenance loop two-terminal-grounding；
Hang three-phase test wiring in described maintenance loop one end, wherein, described three-phase test wiring one end connects described maintenance
Loop, the other end is grounded；
Test wiring by described clamp on amperemeter to described three-phase to measure respectively, obtain described em induced current.
5. faradic current according to claim 3 and induced voltage measuring method are it is characterised in that described measurement electrostatic sense
The step of induced current includes：
Described maintenance loop two-termial line is disconnected, and described maintenance loop one end is grounded；
Hang described three-phase in described maintenance loop earth terminal and test wiring, wherein, described three-phase test wiring one end connects institute
State maintenance loop, the other end is grounded；
Test wiring by described clamp on amperemeter to described three-phase to measure respectively, obtain described static induced current.
6. faradic current according to claim 3 and induced voltage measuring method are it is characterised in that described measurement electromagnetism sense
The step answering voltage includes：
Described maintenance loop two-termial line is disconnected, and described maintenance loop one end is grounded；
Test wiring by described no partial discharge coupling capacitive divider to described three-phase to measure respectively, obtain described electromagnetism sense
Answer voltage,
Wherein, described no partial discharge coupling capacitive divider one end connects the ungrounded end in described maintenance loop, and the other end is grounded.
7. faradic current according to claim 3 and induced voltage measuring method are it is characterised in that described measurement electrostatic sense
The step answering voltage includes：
Described maintenance loop two-termial line is disconnected, and will be earth-free for described maintenance loop two ends；
Test wiring by described no partial discharge coupling capacitive divider to described three-phase to measure respectively, obtain described electrostatic sense
Answer voltage,
Wherein, described no partial discharge coupling capacitive divider one end connects described maintenance loop one end, and the other end is grounded.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610806858.6A CN106383259A (en) | 2016-09-06 | 2016-09-06 | Induced current and inducted voltage measurement method of multi-circuit transmission lines on same tower |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462772A (en) * | 2017-09-18 | 2017-12-12 | 海南电网有限责任公司电力科学研究院 | A kind of anti-induced voltage phase checking device of contactless transmission line of electricity |
| CN107727920A (en) * | 2017-09-18 | 2018-02-23 | 国网浙江省电力公司嘉兴供电公司 | A kind of induced voltage control system and its method |
| CN108490315A (en) * | 2018-05-18 | 2018-09-04 | 云南电网有限责任公司电力科学研究院 | A kind of defeated, distribution line failure positioning device based on electromagnetic induction |
| CN109946566A (en) * | 2019-03-22 | 2019-06-28 | 广东辰誉电力科技有限公司 | A kind of high-pressure parallel transmission line of electricity induced voltage and induced current analysis method |
| CN110568243A (en) * | 2019-09-25 | 2019-12-13 | 国网上海市电力公司 | A method for measuring the induced voltage and current of a four-circuit line on the same tower |
| CN112904226A (en) * | 2021-01-19 | 2021-06-04 | 国网河北省电力有限公司 | Method for rapidly judging short-circuit fault of high-voltage bus based on induced electricity |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699301A (en) * | 2009-10-29 | 2010-04-28 | 江苏省电力试验研究院有限公司 | Method for measuring line parameter through induced electricity |
| CN202502136U (en) * | 2012-03-29 | 2012-10-24 | 上海市电力公司 | Measuring device for induced voltage and induced current of AC line |
| CN103078313A (en) * | 2012-11-14 | 2013-05-01 | 陕西省电力公司规划评审中心 | Method for inhibiting induction voltage and current of 750kV parallel single-line construction line |
| CN104101815A (en) * | 2014-07-24 | 2014-10-15 | 国家电网公司 | High tension transmission line comprehensive tester and testing method |
| CN205103299U (en) * | 2015-11-20 | 2016-03-23 | 韶关市擎能设计有限公司 | With two return circuit induced voltage current detection device of tower |
-
2016
- 2016-09-06 CN CN201610806858.6A patent/CN106383259A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699301A (en) * | 2009-10-29 | 2010-04-28 | 江苏省电力试验研究院有限公司 | Method for measuring line parameter through induced electricity |
| CN202502136U (en) * | 2012-03-29 | 2012-10-24 | 上海市电力公司 | Measuring device for induced voltage and induced current of AC line |
| CN103078313A (en) * | 2012-11-14 | 2013-05-01 | 陕西省电力公司规划评审中心 | Method for inhibiting induction voltage and current of 750kV parallel single-line construction line |
| CN104101815A (en) * | 2014-07-24 | 2014-10-15 | 国家电网公司 | High tension transmission line comprehensive tester and testing method |
| CN205103299U (en) * | 2015-11-20 | 2016-03-23 | 韶关市擎能设计有限公司 | With two return circuit induced voltage current detection device of tower |
Non-Patent Citations (1)
| Title |
|---|
| 周浩: "《特高压交直流输电技术》", 30 June 2014, 浙江大学出版社 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462772A (en) * | 2017-09-18 | 2017-12-12 | 海南电网有限责任公司电力科学研究院 | A kind of anti-induced voltage phase checking device of contactless transmission line of electricity |
| CN107727920A (en) * | 2017-09-18 | 2018-02-23 | 国网浙江省电力公司嘉兴供电公司 | A kind of induced voltage control system and its method |
| CN108490315A (en) * | 2018-05-18 | 2018-09-04 | 云南电网有限责任公司电力科学研究院 | A kind of defeated, distribution line failure positioning device based on electromagnetic induction |
| CN109946566A (en) * | 2019-03-22 | 2019-06-28 | 广东辰誉电力科技有限公司 | A kind of high-pressure parallel transmission line of electricity induced voltage and induced current analysis method |
| CN110568243A (en) * | 2019-09-25 | 2019-12-13 | 国网上海市电力公司 | A method for measuring the induced voltage and current of a four-circuit line on the same tower |
| CN112904226A (en) * | 2021-01-19 | 2021-06-04 | 国网河北省电力有限公司 | Method for rapidly judging short-circuit fault of high-voltage bus based on induced electricity |
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Application publication date: 20170208 |
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