CN107607800A - A kind of emergence measuring method of project of transmitting and converting electricity power frequency electric field under high humidity environment - Google Patents
A kind of emergence measuring method of project of transmitting and converting electricity power frequency electric field under high humidity environment Download PDFInfo
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- CN107607800A CN107607800A CN201710983937.9A CN201710983937A CN107607800A CN 107607800 A CN107607800 A CN 107607800A CN 201710983937 A CN201710983937 A CN 201710983937A CN 107607800 A CN107607800 A CN 107607800A
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- frequency electric
- insulated sling
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Abstract
The invention discloses a kind of emergence measuring method of project of transmitting and converting electricity power frequency electric field under high humidity environment, sensor is suspended on insulated sling and sensor distance survey crew >=8m, and ensures that the height on sensor distance ground is 1.5 meters.Sensor is suspended in the detection that power-frequency electric field strength is carried out on insulated sling by the present invention, can increase substantially the testing result degree of accuracy of power-frequency electric field strength, control testing result error is within 10%.
Description
Technical field
The present invention relates to power frequency electric field detection field, and in particular to project of transmitting and converting electricity power frequency electric field under a kind of high humidity environment
Emergence measuring method.
Background technology
With the development of power industry, the magnetic distribution of the power systems such as transmission line of electricity, transformer station is studied and its right
The security implication of human body is by people's extensive concern.Thus, country has promulgated safety and sanitation standard criterion, to Work places power frequency
The intensity of electric field and enterprise produce the equipment of power frequency super-pressure electric field and the protection of workplace proposes requirement and specification.It is right
This to the power-frequency electric field strength of high voltage substation, it is necessary to detect.
General detection method is by sensor support with support so that sensor is away from ground 1.5m to measure electric-field strength
Degree, measurement place should be relatively flat, and without unnecessary object, its size and the phase with circuit should be recorded to the object that can not be removed
To position, and answer the field strength at additional survey object different distance.Environmental condition during measurement：Relative humidity ﹤ 80%.
Substantial amounts of research and measured data confirm, in the monitoring of project of transmitting and converting electricity power-frequency electric field strength, by sensor, letter
The degree of accuracy of number transmission line, display device, the power-frequency electric field strength monitoring system of support composition is more than in relative air humidity
Influenceed by air humidity very big after 50%, cause power-frequency electric field strength measured value to reach as high as 2-8 times of normal value, error
It is very big.In order to ensure the accurate measurement of power frequency electric field, it is highly desirable to reduce and is made in power-frequency electric field strength test by environmental factor
Into error.
The content of the invention
, should present invention aims at the emergence measuring method for providing project of transmitting and converting electricity power frequency electric field under a kind of high humidity environment
Emergence measuring method can increase substantially the testing result degree of accuracy of power-frequency electric field strength, and control testing result error is 10%
Within.
The present invention is achieved through the following technical solutions：
The emergence measuring method of project of transmitting and converting electricity power frequency electric field, insulating hanging is suspended in by sensor under a kind of high humidity environment
On rope at the X of position, range measurement personnel >=8m at the X of position, and ensure sensor distance ground height be 1.5 meters.
Length >=20 meter of insulated sling.
Diameter≤5mm of insulated sling.
Insulated sling is the rope material with hydrophobicity and tensile capacity.
Insulated sling is that PE fibrous materials are prepared or insulated sling is nylon material.
During fixed sensor, insulated sling moves towards arrangement along transmission line of electricity.
Application environment is relative humidity 20%-95%, and temperature is 0 DEG C -40 DEG C.
Substantial amounts of research and measured data confirm, in the monitoring of project of transmitting and converting electricity power-frequency electric field strength, by sensor, letter
The degree of accuracy of number transmission line, display device, the power-frequency electric field strength monitoring system of support composition is more than in relative air humidity
Influenceed by air humidity very big after 50%, cause power-frequency electric field strength measured value to reach as high as 2-8 times of normal value, its machine
Reason is because humidity is excessive, and easily causing the performance of sensor stand reduces, cause the bottom crown of sensor measures capacitance with it is big
The electric capacity increase that ground is formed so that the partial pressure increase on measurement electric capacity, so as to cause measurement result to become big, therefore error is just produced
It is raw.For such existing issue, prior art often tends to carry out support in itself the improvement of waterproof insulation.The present invention's
Inventor, which does not have, to continue prior art custom and continues improvement to support, but creative changes support into insulation
Lifting rope.Insulated sling with hydrophobicity and tensile capacity, the insulated sling that particularly hydrophobicity is strong, tensile capacity is strong are in high humidity
Space electric field will not be caused to shield under degree environment, and simultaneously, in the mode for being suspended in midair sensor using insulated sling, sensor
Measure electric capacity electric capacity increasing caused by without being influenceed because of support by ambient humidity that electric capacity bottom crown is formed with the earth
This big error source, the partial pressure measured on electric capacity will not also change, and therefore, measurement result is not also affected.
The length of insulated sling is not less than 20 meters in the present invention, and the diameter of insulated sling is not more than 5mm, and reason is：Away from
Far it is not easy that the electric field of sensor position is caused to distort enough from sensor, while also will not be due to for by insulated sling
The fixture that both ends stretch causes to distort to electric field；Insulated sling is not more than 5mm and is to try to reduce the possibility that insulated sling makes moist
Property.
The present invention compared with prior art, has the following advantages and advantages：
Sensor is suspended in the detection that power-frequency electric field strength is carried out on insulated sling by the present invention, can increase substantially work
The testing result degree of accuracy of frequency electric-field intensity, control testing result error is within 10%.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment, the present invention is made
Further to describe in detail, exemplary embodiment of the invention and its explanation are only used for explaining the present invention, are not intended as to this
The restriction of invention.
Embodiment 1
The emergence measuring method of project of transmitting and converting electricity power frequency electric field, insulating hanging is suspended in by sensor under a kind of high humidity environment
On rope at the X of position, range measurement personnel >=8m at the X of position, and ensure sensor distance ground height be 1.5 meters.
Length >=20 meter of insulated sling.
Diameter≤5mm of insulated sling.
Insulated sling is the rope material with hydrophobicity and tensile capacity.
Insulated sling is that PE fibrous materials are prepared or insulated sling is nylon material.
During fixed sensor, insulated sling moves towards arrangement along transmission line of electricity.
Application environment is relative humidity 20%-95%, and temperature is 0 DEG C -40 DEG C.
Sensor is hung insulated sling in rear, reference People's Republic of China (PRC) power industry standard DL/T988- by early stage
The 4.2 power frequency electric field strength that " high-voltage alternating aerial power transmission line, transformer station's power frequency electric occasion Measurement Method for Magnetic Field " is recorded in 2005
Degree measuring method measures.
Beneficial effect to illustrate the invention, inventor from identical sensor, ordinary stent, with wooden pillar, straight
The insulated sling for the nylon material that footpath is 5mm, length is 20m carries out two groups of contrast tests, and test method is as follows：
1st, relative humidity be 34.9%, temperature be 39.1 DEG C of progress electric field measurements, measuring method is total to reference to the Chinese people
With state's power industry standard DL/T988-2005 Plays execution, measurement result is shown in Table 1.
2nd, relative humidity be 37.2%, temperature be 35.7 DEG C of progress electric field measurements, measuring method is total to reference to the Chinese people
With state's power industry standard DL/T988-2005 Plays execution, measurement result is shown in Table 1.
3rd, relative humidity be 49.1%, temperature be 36.4 DEG C of progress electric field measurements, measuring method is total to reference to the Chinese people
With state's power industry standard DL/T988-2005 Plays execution, measurement result is shown in Table 1.
4th, relative humidity be 69.8%, temperature be 30.1 DEG C of progress electric field measurements, measuring method is total to reference to the Chinese people
With state's power industry standard DL/T988-2005 Plays execution, measurement result is shown in Table 1.
5th, relative humidity be 71.1%, temperature be 26 DEG C progress electric field measurements, measuring method is with reference to Chinese people's republicanism
State's power industry standard DL/T988-2005 Plays perform, and measurement result is shown in Table 1.
The measurement error of the various different measuring systems of table 1 under various circumstances compares
Ordinary stent refers to such as model Berlebach report823/3 or 8023, the rich thunder Bach of Germany herein
The wooden professional tripod of 8023 type Chinese wax, calibrated altitude 50cm, long 69cm after contraction, universal camera interface screw, antidetonation
Property is good.And the entirety of wooden pillar is all prepared by timber.
As can be seen from the above table, the electric-field intensity error tested with insulated sling is minimum, and the electric-field intensity of ordinary stent is missed
Difference is taken second place, and the electric field intensity measuremenrt error of wooden pillar is maximum.The error of ordinary stent with humidity increase error increasingly
Greatly.
Above-described embodiment, the purpose of the present invention, technical scheme and beneficial effect are carried out further
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., all should include
Within protection scope of the present invention.
Claims (7)
1. a kind of emergence measuring method of project of transmitting and converting electricity power frequency electric field under high humidity environment, it is characterised in that hang sensor
Be hung on insulated sling at the X of position, range measurement personnel >=8m at the X of position, and ensure sensor distance ground height be 1.5
Rice.
2. emergence measuring method according to claim 1, it is characterised in that length >=20 meter of insulated sling.
3. emergence measuring method according to claim 1, it is characterised in that diameter≤5mm of insulated sling.
4. emergence measuring method according to claim 1, it is characterised in that insulated sling is with hydrophobicity and tension energy
The rope material of power.
5. emergence measuring method according to claim 1, it is characterised in that insulated sling is that PE fibrous materials are prepared
Or insulated sling is nylon material.
6. emergence measuring method according to claim 1, it is characterised in that during fixed sensor, insulated sling is along transmission of electricity
Line alignment is arranged.
7. emergence measuring method according to claim 1, it is characterised in that application environment is relative humidity 20%-95%,
Temperature is 0 DEG C -40 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710983937.9A CN107607800A (en) | 2017-10-20 | 2017-10-20 | A kind of emergence measuring method of project of transmitting and converting electricity power frequency electric field under high humidity environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710983937.9A CN107607800A (en) | 2017-10-20 | 2017-10-20 | A kind of emergence measuring method of project of transmitting and converting electricity power frequency electric field under high humidity environment |
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| Publication Number | Publication Date |
|---|---|
| CN107607800A true CN107607800A (en) | 2018-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710983937.9A Pending CN107607800A (en) | 2017-10-20 | 2017-10-20 | A kind of emergence measuring method of project of transmitting and converting electricity power frequency electric field under high humidity environment |
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Cited By (1)
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| CN106771660A (en) * | 2016-11-21 | 2017-05-31 | 国网四川省电力公司电力科学研究院 | A kind of project of transmitting and converting electricity power-frequency electric field strength measures support performance measurement method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771660A (en) * | 2016-11-21 | 2017-05-31 | 国网四川省电力公司电力科学研究院 | A kind of project of transmitting and converting electricity power-frequency electric field strength measures support performance measurement method |
| CN106771660B (en) * | 2016-11-21 | 2019-07-16 | 国网四川省电力公司电力科学研究院 | A kind of project of transmitting and converting electricity power-frequency electric field strength measurement bracket performance measurement method |
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Application publication date: 20180119 |