CN105304256B - Detachable type current transformer connects with current comparator magnetic circuit uses magnetic conduction ointment - Google Patents
Detachable type current transformer connects with current comparator magnetic circuit uses magnetic conduction ointment Download PDFInfo
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- CN105304256B CN105304256B CN201510677943.2A CN201510677943A CN105304256B CN 105304256 B CN105304256 B CN 105304256B CN 201510677943 A CN201510677943 A CN 201510677943A CN 105304256 B CN105304256 B CN 105304256B
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- Prior art keywords
- magnetic
- magnetic conduction
- ointment
- current transformer
- magnetic circuit
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- 239000002674 ointment Substances 0.000 title claims abstract description 39
- 239000002245 particle Substances 0.000 claims abstract description 11
- 230000035515 penetration Effects 0.000 claims abstract description 11
- NDAUXUAQIAJITI-UHFFFAOYSA-N albuterol Chemical compound CC(C)(C)NCC(O)C1=CC=C(O)C(CO)=C1 NDAUXUAQIAJITI-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000843 powder Substances 0.000 claims abstract description 8
- 229940070384 ventolin Drugs 0.000 claims abstract description 8
- 239000011159 matrix material Substances 0.000 claims abstract description 5
- 230000035699 permeability Effects 0.000 claims description 10
- 238000005516 engineering process Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 238000003032 molecular docking Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 239000000945 filler Substances 0.000 description 7
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 235000019271 petrolatum Nutrition 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 229910002555 FeNi Inorganic materials 0.000 description 2
- 239000011162 core material Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000006247 magnetic powder Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009967 tasteless effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910001017 Alperm Inorganic materials 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 244000050510 Cunninghamia lanceolata Species 0.000 description 1
- 239000004264 Petrolatum Substances 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229940066842 petrolatum Drugs 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 230000036555 skin type Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 229940099259 vaseline Drugs 0.000 description 1
Abstract
Connected the invention discloses a kind of detachable type current transformer with current comparator magnetic circuit and be with magnetic conduction ointment, basic recipe system：Using 100 DEG C of kinematic viscosity be more than 8mm2/s or cone penetration 130 180 medical ventolin as matrix, using the hyperloy powder that particle diameter is 150 400 mesh as functional stuffing, formula controls 1 by volume:0.85 to 1:Between 50.It is not tight that the present invention can effectively solve the docking of detachable current transformer and current comparator magnetic circuit, causes the problem of sensitive low.
Description
Technical field
Connected the present invention relates to a kind of detachable type current transformer with current comparator magnetic circuit with magnetic conduction ointment, especially
It is related to one kind and docks auxiliary material with current comparator magnetic circuit suitable for live detachable type current transformer.
Background technology
In the process of construction of intelligent grid, frequently encounter and upgrading increase auxiliary is carried out to original power equipment or circuit
Detection and monitoring system, so as to improve the intelligent level of power equipment and power network.And the auxiliary detection and monitoring set up
In system, magneto-electric current sensor occupies larger proportion, such as straight-through current transformer and current comparator.
The basic composition of electromagnetic current transducer and current comparator includes magnetic circuit（Iron core）And coil（Measure winding and
Ratio winding etc.）.In order to meet to transform original circuit and equipment, generally require that electric current can be dismantled under field condition at any time
Transformer and current comparator, and detachable current transformer must be docked and shape with the iron core of current comparator by two parts
Into the magnetic circuit of closure.Because core material is hard material, the imprecise problem of contact is frequently encountered at docking port, so as to lead
Magnetic circuit reluctance is caused to greatly increase, current transformer and current comparator measuring accuracy are greatly reduced.
The method of the magnetic resistance at current transformer and current comparator iron core docking port is reduced mainly in structure design
Take appropriate measures, but this method increase the manufacturing cost of equipment, and it is uncontrollable still to exclude field-mounted process
The problem of factor causes docking not tight.
The content of the invention
In order to solve the above-mentioned technical problem, the invention provides a kind of detachable type current transformer and current comparator magnetic
Magnetic conduction ointment is used in road connection.
In order to achieve the above object, the technical solution adopted in the present invention is：
Detachable type current transformer connects with current comparator magnetic circuit uses magnetic conduction ointment, and basic recipe system is：With 100
DEG C kinematic viscosity is matrix more than the medical ventolin of 8mm2/s or cone penetration in 130-180, the height using particle diameter as 150-400 mesh
Magnetic conduction FeNi powders are functional stuffing, and formula controls 1 by volume:0.85 to 1:Between 50.
The relative permeability of magnetic conduction ointment is more than 4, and viscosity is not more than 4mm2/s.
Magnetic conduction ointment prepares and uses mechanical blending preparation technology.
The beneficial effect that the present invention is reached：1st, the present invention can effectively solve detachable current transformer and current comparator
Magnetic circuit docking is not tight, causes the problem of sensitive low；2nd, the present invention is nontoxic, tasteless environment-friendly type software material using medical ventolin
Material, prepares magnetic conduction ointment, preparation method is simple, cost is low, stable performance with Alperm powder mechanical blending；3rd, invention is not only
It can be applied to the connection of the iron cores such as live detachable type current transformer and current comparator, it can also be used to the magnetic of other similar devices
Road connects.
Embodiment
The following examples are only intended to illustrate the technical solution of the present invention more clearly, and can not limit the present invention with this
Protection domain.
Detachable type current transformer connects with current comparator magnetic circuit uses magnetic conduction ointment, and basic recipe system is：With 100
DEG C kinematic viscosity is matrix more than the medical ventolin of 8mm2/s or cone penetration in 130-180, the height using particle diameter as 150-400 mesh
Magnetic conduction FeNi powders are functional stuffing, and formula controls 1 by volume:0.85 to 1:Between 50.
Prepared by above-mentioned magnetic conduction ointment uses mechanical blending preparation technology, and the relative permeability of the magnetic conduction ointment prepared is big
In 4, viscosity is not more than 4mm2/s.
Above-mentioned magnetic conduction ointment selection is more than the medical all scholars of 8mm2/s or cone penetration in 130-180 with 100 DEG C of kinematic viscosity
Woods is matrix.The medical ventolin is the relatively low vaseline of viscosity, to ensure that prepared magnetic conduction ointment has preferably flowing
Property, under certain mechanical compaction power effect magnetic circuit joint gap can be made as minimum as possible, and the gas of joint can be supplanted
Gap；Medical ventolin is widely used in the raw material of skin type product simultaneously, and the Petroleum refining come goes out low molecular hydrocarbon petrolatum, is
The environment-friendly type soft material that raw material sources are extensive, cost is low, nontoxic, tasteless.
Hyperloy powder of the above-mentioned magnetic conduction ointment selection using particle diameter as 150-400 mesh is functional stuffing.150-400
Purpose hyperloy powder is widely used in magnetic powder brake and magnetic powder inspection field, is commercially readily available.
Magnetic concentration height can improve the magnetic conductivity of ointment, but due to poor fluidity, easily formed when being connected for magnetic circuit compared with
Thick articulamentum, and then increase the magnetic resistance of whole magnetic circuit.Magnetic concentration is low, although having good mobility, when magnetic circuit connects
Relatively thin articulamentum is formed, preferable magnetic circuit connection effect can not be equally obtained to magnetic conductivity is too low.Therefore, above-mentioned magnetic conduction ointment
Select base-material（Medical ventolin）With filler（Hyperloy powder）Volume ratio is from 1:0.85 to 1：1.50 as formula model
Enclose, taken into account the mobility and magnetic conductivity of ointment.
Embodiment one：
The commercially available medical albolene that cone penetration is 130, colourity is 30 is selected as base-material；Selection relative permeability is more than
1500th, particle diameter is that the commercially available iron nickel magnetic of 150 purposes is filler；It is equal to 1 by volume:0.85 is formulated, using mechanical agitation
Method prepare magnetic conduction ointment.The magnetic conductivity and viscosity of magnetic conduction ointment are tested at 27 DEG C of environment temperature, test result is relative
Magnetic conductivity 4.01, viscosity 3.26mm2/s。
Embodiment two：
The commercially available medical albolene that cone penetration is 135, colourity is 30 is selected as base-material；Selection relative permeability is more than
1500th, particle diameter is that the commercially available iron nickel magnetic of 150 purposes is filler；It is equal to 1 by volume:1 is formulated, using churned mechanically side
Method prepares magnetic conduction ointment.The magnetic conductivity and viscosity of magnetic conduction ointment are tested at 27 DEG C of environment temperature, test result is relative magnetic permeability
Rate 4.37, viscosity 3.64mm2/s。
Embodiment three：
The commercially available medical albolene that cone penetration is 135, colourity is 30 is selected as base-material；Selection relative permeability is more than
1500th, particle diameter is that the commercially available iron nickel magnetic of 250 purposes is filler；It is equal to 1 by volume:1.2 are formulated, and use is churned mechanically
Method prepares magnetic conduction ointment.The magnetic conductivity and viscosity of magnetic conduction ointment are tested at 27 DEG C of environment temperature, test result is relative magnetic
Conductance 4.56, viscosity 3.83mm2/s。
Embodiment four：
The commercially available medical albolene that cone penetration is 155, colourity is 30 is selected as base-material；Selection relative permeability is more than
1500th, particle diameter is that the commercially available iron nickel magnetic of 250 purposes is filler；It is equal to 1 by volume:1.5 are formulated, and use is churned mechanically
Method prepares magnetic conduction ointment.The magnetic conductivity and viscosity of magnetic conduction ointment are tested at 27 DEG C of environment temperature, test result is relative magnetic
Conductance 5.36, viscosity 3.13mm2/s。
Embodiment five：
It is 180 that cone penetration is surveyed in choosing, and the commercially available medical yellow petroleum jelly that colourity is 45 is as base-material；Selection relative permeability is more than
1500th, particle diameter is that the commercially available iron nickel magnetic of 250 purposes is filler；It is equal to 1 by volume:1.3 are formulated, and use is churned mechanically
Method prepares magnetic conduction ointment.The magnetic conductivity and viscosity of magnetic conduction ointment are tested at 27 DEG C of environment temperature, test result is relative magnetic
Conductance 4.39, viscosity 3.73mm2/s。
Embodiment six：
It is 180 that cone penetration is surveyed in choosing, and the commercially available medical yellow petroleum jelly that colourity is 45 is as base-material；Selection relative permeability is more than
1500th, particle diameter is that the commercially available iron nickel magnetic of 400 purposes is filler；It is equal to 1 by volume:2.0 are formulated, and use is churned mechanically
Method prepares magnetic conduction ointment.The magnetic conductivity and viscosity of magnetic conduction ointment are tested at 27 DEG C of environment temperature, test result is relative magnetic
Conductance 5.23, viscosity 2.17mm2/s。
A kind of magnetic conduction ointment prepared in any selection Chinese fir embodiment, the magnetic conduction ointment prepared such as embodiment four.
Live detachable current comparator tests its sensitivity when not using magnetic conduction ointment as 0.25mV/A, is applied using magnetic conduction ointment
Magnetic circuit docking end is overlayed on, by mechanical presses, then test stream is 1.75mV/A than device sensitivity, and sensitivity improves 7
Times.
In summary, above-mentioned magnetic conduction ointment can effectively solve detachable current transformer and current comparator magnetic circuit docking not
Sternly, the problem of sensitive low is caused.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, some improvement and deformation can also be made, these are improved and deformation
Also it should be regarded as protection scope of the present invention.
Claims (2)
1. detachable type current transformer connects with current comparator magnetic circuit uses magnetic conduction ointment, it is characterised in that：Basic recipe body
It is to be：It is more than 8mm with 100 DEG C of kinematic viscosity2/ s or cone penetration are matrix in 130-180 medical ventolin, using particle diameter as
The hyperloy powder of 150-400 mesh is functional stuffing, and formula controls 1 by volume:0.85 to 1:Between 50, magnetic conduction
The relative permeability of ointment is more than 4, and viscosity is not more than 4mm2/s。
2. detachable type current transformer according to claim 1 connects with current comparator magnetic circuit uses magnetic conduction ointment, its
It is characterised by：Magnetic conduction ointment prepares and uses mechanical blending preparation technology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510677943.2A CN105304256B (en) | 2015-10-19 | 2015-10-19 | Detachable type current transformer connects with current comparator magnetic circuit uses magnetic conduction ointment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510677943.2A CN105304256B (en) | 2015-10-19 | 2015-10-19 | Detachable type current transformer connects with current comparator magnetic circuit uses magnetic conduction ointment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105304256A CN105304256A (en) | 2016-02-03 |
| CN105304256B true CN105304256B (en) | 2018-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510677943.2A Active CN105304256B (en) | 2015-10-19 | 2015-10-19 | Detachable type current transformer connects with current comparator magnetic circuit uses magnetic conduction ointment |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1962783A (en) * | 2006-11-06 | 2007-05-16 | 南昌大学 | Process for preparing amorphous nano-crystalline magnetic powder magnetic-conductive adhesive |
| CN101462173A (en) * | 2009-01-16 | 2009-06-24 | 武汉理工大学 | Method for preparing nano complex particle for highly conductive and magnetic electro-magnetic screen |
| CN102737803A (en) * | 2012-06-29 | 2012-10-17 | 中国科学技术大学 | Phase change type magnetorheological material and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6929757B2 (en) * | 2003-08-25 | 2005-08-16 | General Motors Corporation | Oxidation-resistant magnetorheological fluid |
| CN102916002B (en) * | 2012-10-16 | 2015-05-13 | 刘伟德 | Semiconductor packaging device with magnetic shielding function and production method thereof |
-
2015
- 2015-10-19 CN CN201510677943.2A patent/CN105304256B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1962783A (en) * | 2006-11-06 | 2007-05-16 | 南昌大学 | Process for preparing amorphous nano-crystalline magnetic powder magnetic-conductive adhesive |
| CN101462173A (en) * | 2009-01-16 | 2009-06-24 | 武汉理工大学 | Method for preparing nano complex particle for highly conductive and magnetic electro-magnetic screen |
| CN102737803A (en) * | 2012-06-29 | 2012-10-17 | 中国科学技术大学 | Phase change type magnetorheological material and preparation method thereof |
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| Publication number | Publication date |
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| CN105304256A (en) | 2016-02-03 |
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