CN110136942A - A kind of silicon rubber outdoor open-type combination current mutual inductor - Google Patents
A kind of silicon rubber outdoor open-type combination current mutual inductor Download PDFInfo
- Publication number
- CN110136942A CN110136942A CN201910397054.9A CN201910397054A CN110136942A CN 110136942 A CN110136942 A CN 110136942A CN 201910397054 A CN201910397054 A CN 201910397054A CN 110136942 A CN110136942 A CN 110136942A
- Authority
- CN
- China
- Prior art keywords
- iron core
- silicon rubber
- mutual inductor
- current mutual
- type combination
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229920002379 silicone rubber Polymers 0.000 title claims abstract description 43
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 73
- 239000000463 material Substances 0.000 claims abstract description 63
- 229920000260 silastic Polymers 0.000 claims abstract description 49
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 8
- 238000013040 rubber vulcanization Methods 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 abstract description 6
- 238000009413 insulation Methods 0.000 abstract description 6
- 229920000647 polyepoxide Polymers 0.000 abstract description 6
- 230000007812 deficiency Effects 0.000 abstract description 2
- 238000005336 cracking Methods 0.000 abstract 1
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 7
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 7
- 239000000047 product Substances 0.000 description 6
- 230000032683 aging Effects 0.000 description 2
- 239000002775 capsule Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000006750 UV protection Effects 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000004224 protection Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/28—Current transformers
- H01F38/30—Constructions
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
The invention discloses a kind of silicon rubber outdoor open-type combination current mutual inductors.Current transformer of the invention is cut to obtain the first iron core and the second iron core by the iron core of circular ring shape, and primary system is obtained in the first silastic material of external package of the first iron core, line packet is formed in the external coiling of the second iron core, the second silastic material of external package wrapped online obtains electrical secondary system, then combines to obtain by primary system and electrical secondary system fastening by hose clamp.Use the first silastic material and the second silastic material of the invention, it is insulated and is sealed, come replace poured with epoxy resin at major insulation and ABS shell, avoid poured with epoxy resin at major insulation housing and ABS material shell season cracking, cause the technological deficiency of scrap of the product, it can outdoor use for a long time.
Description
Technical field
The present invention relates to field of power electronics, in particular to a kind of silicon rubber outdoor open-type combination current mutual inductor.
Background technique
Traditional silicon rubber outdoor open-type combination current mutual inductor generallys use ABS (crylonitrile
Butadiene Styrene, ABS, refer to acrylonitrile-butadiene-styrene copolymer) outer housing of the material as product, it is built-in
Line packet by iron core as main element is made after poured with epoxy resin as major insulation material, this mutual inductor is through cutting
It is processed into symmetrical two half part, is then fitted together by anchor ear and forms silicon rubber outdoor open-type combination current mutual inductor,
It is generally applicable to indoor, needs when outdoor use that the sheath with protective effect is fabricated separately, sheath requires waterproof, UV resistance
Line, anti-aging, although this sheath can play the role of protecting mutual inductor, product main body epoxy resin and ABS shell are easily old
It melts and splits, cause scrap of the product, lead to a route survey inaccuracy, easily cause line fault.How a kind of be applicable in is provided
Become a technical problem urgently to be resolved in outdoor silicon rubber outdoor open-type combination current mutual inductor.
Summary of the invention
The object of the present invention is to provide a kind of silicon rubber outdoor open-type combination current mutual inductors, are suitable for providing one kind
Outdoor silicon rubber outdoor open-type combination current mutual inductor.
To achieve the above object, the present invention provides following schemes:
The present invention provides a kind of silicon rubber outdoor open-type combination current mutual inductor, and the current transformer includes: semicircle
The primary system of annular and the electrical secondary system of semi-circular shape, the primary system and the electrical secondary system are fastened on one by hose clamp
Act the current transformer for forming circular ring shape；
The primary system includes the first iron core and the first silastic material of semi-circular shape；First silastic material
It is wrapped in the outside of first iron core；
The electrical secondary system includes the second iron core, secondary coil and the second silastic material of semi-circular shape, described secondary
Coil is wrapped on second iron core, forms line packet, and second silastic material is wrapped in the outside of the line packet；
First iron core and second iron core are cut to obtain by annular iron core.
Optionally, the primary system further includes lasso；The lasso is set in the outside of first silastic material.
Optionally, the lasso includes rectangular pipe sleeve and round pipe sleeve；
The round tube is set on the side wall of the rectangular pipe sleeve, the axis and the rectangular tube of the circle pipe sleeve
The axis of set is mutually perpendicular to, and the axis of the circle pipe sleeve is parallel to each other with the side wall；The rectangular pipe sleeve and the circle
Pipe sleeve is an integral molding structure；
The rectangular pipe sleeve is set in the outside of first silastic material.
Optionally, the material of the lasso is silicon rubber.
Optionally, the electrical secondary system further includes shield box；The outside protected box and be set in second iron core, described two
Secondary coil is wrapped on the shield box.
Optionally, the shield box includes the hollow iron core sleeve and two rectangle ring sets of semi-annular；
The shape of the inner ring of the rectangle ring set is identical as the inner ring shape of end face of the hollow iron core sleeve, described in two
The inner ring of rectangle ring set is overlapped setting, the hollow iron core sleeve and two with the inner ring of the end face at the hollow iron core sleeve both ends respectively
A rectangle ring set is an integral molding structure；
Second iron core is set in the hollow iron core sleeve, and the both ends of the second iron core are respectively from two straight-flanked rings
The inner ring of set is stretched out；The secondary coil is wrapped in the hollow iron core sleeve.
Optionally, the material of the shield box is ABS plastic.
Optionally, first silastic material is that first iron core is put into progress silicon rubber vulcanization molding in mold
It obtains.
Optionally, second silastic material is that the line packet is put into progress silicon rubber vulcanization in mold to form to obtain
's.
Optionally, the current transformer further includes two sealing-plugs；
Two sealing-plugs are separately positioned on the inside at the both ends of second silastic material.
The specific embodiment provided according to the present invention, the invention discloses following technical effects:
The invention discloses a kind of silicon rubber outdoor open-type combination current mutual inductors.The current transformer includes: half
The primary system of circular ring shape and the electrical secondary system of semi-circular shape, primary system and electrical secondary system tighten together to be formed by hose clamp
The current transformer of circular ring shape；Primary system includes the first iron core and the first silastic material of semi-circular shape；First silicon rubber
Outer sheath covers are in the outside of first iron core；Electrical secondary system includes the second iron core, secondary coil and the second silicon of semi-circular shape
Rubber sleeve, secondary coil are wrapped on the second iron core, form line packet, and the second silastic material wraps up the outside wrapped online.This
The current transformer of invention is cut to obtain the first iron core and the second iron core by the iron core of circular ring shape, and in the external packet of the first iron core
It wraps up in the first silastic material and obtains primary system, form line packet in the external coiling of the second iron core, the external package wrapped online the
Two silastic materials obtain electrical secondary system, then combine to obtain by primary system and electrical secondary system fastening by hose clamp.
Use the first silastic material and the second silastic material of the invention, is insulated and is sealed, to replace poured with epoxy resin
At major insulation and ABS shell, avoid poured with epoxy resin at the aging of shell of major insulation housing and ABS material open
It splits, causes the technological deficiency of scrap of the product, it can outdoor use for a long time.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of structure chart of silicon rubber outdoor open-type combination current mutual inductor provided by the invention；Wherein, Fig. 1 a
For the main view of silicon rubber outdoor open-type combination current mutual inductor structure, Fig. 1 b is that silicon rubber outdoor open-type combination current is mutual
The sectional view of sensor structure；
Fig. 2 is a kind of overall appearance figure of silicon rubber outdoor open-type combination current mutual inductor provided by the invention；
Fig. 3 is a kind of structure chart of the hose clamp of three-phase integrated current transformer provided by the invention；
Fig. 4 is a kind of structure chart of first iron core of three-phase integrated current transformer provided by the invention；
Fig. 5 is a kind of structure chart of first silastic material of three-phase integrated current transformer provided by the invention；
Fig. 6 is a kind of structure chart of second silastic material of three-phase integrated current transformer provided by the invention；
Fig. 7 is a kind of structure chart of the lasso of three-phase integrated current transformer provided by the invention；
Fig. 8 is a kind of structure chart of the shield box of three-phase integrated current transformer provided by the invention；
Fig. 9 is the structure after a kind of second iron core of three-phase integrated current transformer provided by the invention and shield capsule
Figure；
Figure 10 is a kind of structure chart of the sealing-plug of three-phase integrated current transformer provided by the invention；
Figure 11 is a kind of the second silastic material of the loading sealing-plug of three-phase integrated current transformer provided by the invention
Structure chart.
Specific embodiment
The object of the present invention is to provide a kind of silicon rubber outdoor open-type combination current mutual inductors, are suitable for providing one kind
Outdoor silicon rubber outdoor open-type combination current mutual inductor.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Mode is applied to be described in further detail invention.
The present invention provides a kind of silicon rubber outdoor open-type combination current mutual inductor, and as illustrated in fig. 1 and 2, the electric current is mutual
Sensor includes: the primary system A of semi-circular shape and the electrical secondary system B, the primary system A of semi-circular shape and the electrical secondary system
B tightens together to form the current transformer of circular ring shape by hose clamp C as shown in Figure 3；The primary system A includes such as Fig. 4
Shown in semi-circular shape the first iron core 1 and the first silastic material 2 as shown in Figure 5；The material of first silastic material 2
Material is silastic material；First silastic material 2 is wrapped in the outside of first iron core 1；The electrical secondary system B includes
The second iron core 3, secondary coil (being not shown in Fig. 1 and 2) and the second silastic material 4 as shown in Figure 6 of semi-circular shape, described two
Secondary coil is wrapped on second iron core 3, forms line packet, and second silastic material 4 is wrapped in the outside of the line packet,
First iron core 1 and second iron core 3 are cut to obtain by annular iron core.
As shown in Figure 1, the primary system further includes lasso 5；The lasso 5 is set in first silastic material 2
Outside.As shown in fig. 7, the lasso 5 includes rectangular pipe sleeve 501 and round pipe sleeve 502；Round pipe sleeve 502 is stated to be arranged in institute
On the side wall for stating rectangular pipe sleeve 501, the axis of the axis and the rectangular pipe sleeve 501 of the circle pipe sleeve 502 is mutually perpendicular to, institute
The axis and the side wall for stating round pipe sleeve 502 are parallel to each other；The rectangular pipe sleeve 501 and the round pipe sleeve 502 are integrated
Molding structure；State the outside that rectangular pipe sleeve is set in first silastic material 2.The material of the lasso is silicon rubber.
As shown in Figure 1, the electrical secondary system further includes shield box 6；The shield box 6 is set in the outside of second iron core 3,
The secondary coil is wrapped on the shield box 6.As shown in figure 8, the shield box 6 includes the hollow iron core sleeve 601 of semi-annular
With two rectangle ring sets 602；The inner ring of the end face of the shape of the inner ring of the rectangle ring set 602 and the hollow iron core sleeve 601
Shape is identical, and the inner ring of two rectangle ring sets 602 is overlapped with the inner ring of the end face at hollow 601 both ends of iron core sleeve respectively
Setting, the hollow iron core sleeve 601 and two rectangle ring sets 602 are an integral molding structure；Second iron core 3 is set in
In the hollow iron core sleeve 601, the both ends of the second iron core 3 are stretched out from the inner ring of two rectangle ring sets 602 respectively；Described two
Secondary coil is wrapped in the hollow iron core sleeve 601.Second iron core and the structure after shield capsule are as shown in Figure 9.The shield box 6
Material be ABS plastic.
First silastic material 2 is that first iron core is put into progress silicon rubber vulcanization in mold to form to obtain
's.
The line packet is put into progress silicon rubber vulcanization in mold and forms to obtain by second silastic material 4.
The current transformer further includes two sealing-plugs 7；The shape of the sealing-plug 7 is straight-flanked ring as shown in Figure 10,
Two sealing-plugs 7 are arranged the inside at the both ends of second silastic material 4 respectively, are as shown in figure 11 loading sealing-plug
The second silastic material 4 structure chart.The both ends of first iron core 1 are respectively sleeved at the inside of two sealing-plugs 7.
The first iron core handled without coiling and the first silastic material 2 are assembled into the primary system of mutual inductor by the present invention
System, wherein the material of the first silastic material 2 is that silicon rubber is very suitable to do due to silicon rubber flexible deformation with higher
Sealing material, so the first silastic material 2 of silastic material at this time had not only played insulating effect but also sealed.
Be fabricated separately shield box in the outside of the second iron core, the material of production shield box is ABS, secondary coil on shield box around
Line, shield box at this time play the role of protecting conducting wire, prevent secondary coil paint film from rupturing.Wind the shield box and second of line
Line packet is put into silicon rubber mould and at high temperature under high pressure sulfidization molding by the semi-finished product formed after iron core assembly, referred to as line packet,
As the second silastic material 4.
In order to guarantee the sealing of 2 junction of the second silastic material 4 and the first silastic material, sealing-plug is specially designed,
Guarantee product two parts junction and external sealing.
In order to guarantee that product two parts are completely embedded, non-loosening specially designs hose clamp, and the material of hose clamp is 1Cr18Ni9Ti
Stainless steel has fully ensured that outdoor use condition.
The design of lasso considers a connection between conducting wire and mutual inductor should be securely flexible again, expands simultaneously
The use scope of conducting wire.
In conclusion firing current mutual inductor of the invention has a characteristic that
1) performance characteristics:
1. firing current mutual inductor of the invention is the current transformer of outsourcing silicon rubber, there is corrosion-resistant, uvioresistant
Radiate the advantages that strong, ageing-resistant, non-maintaining.
2. the second silastic material of silicon rubber injection-compression molding plays the role of major insulation, dielectric strength is improved, it can
Meet the requirement of the national standard " GB1208-2014 " of China.
3. being suitable for open air.
2) use condition:
Environment temperature: -40 DEG C~+70 DEG C；
Mean daily temperature :≤+ 40 DEG C；
Height above sea level :≤2000m；
Gradation for surface pollution: II grade.
3) technical parameter:
Specified primary insulation voltage: 12kV/45kV/75kV；
Rated frequency: 50Hz；
No-load voltage ratio: 600/5；
Class of accuracy: 0.5 grade；
And load: 5VA.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
Specific examples are used herein to describe the principles and implementation manners of the present invention, the explanation of above embodiments
Method and its core concept of the invention are merely used to help understand, described embodiment is only that a part of the invention is real
Example is applied, instead of all the embodiments, based on the embodiments of the present invention, those of ordinary skill in the art are not making creation
Property labour under the premise of every other embodiment obtained, shall fall within the protection scope of the present invention.
Claims (10)
1. a kind of silicon rubber outdoor open-type combination current mutual inductor, which is characterized in that the current transformer includes: semicircular ring
The primary system of shape and the electrical secondary system of semi-circular shape, the primary system and the electrical secondary system are tightened together by hose clamp
Form the current transformer of circular ring shape；
The primary system includes the first iron core and the first silastic material of semi-circular shape；The first silastic material package
In the outside of first iron core；
The electrical secondary system includes the second iron core, secondary coil and the second silastic material of semi-circular shape, the secondary coil
It is wrapped on second iron core, forms line packet, second silastic material is wrapped in the outside of the line packet；
First iron core and second iron core are cut to obtain by annular iron core.
2. silicon rubber outdoor open-type combination current mutual inductor according to claim 1, which is characterized in that the primary system
System further includes lasso；The lasso is set in the outside of first silastic material.
3. silicon rubber outdoor open-type combination current mutual inductor according to claim 2, which is characterized in that the lasso packet
Include rectangular pipe sleeve and round pipe sleeve；
The round tube is set on the side wall of the rectangular pipe sleeve, the axis and the rectangular pipe sleeve of the circle pipe sleeve
Axis is mutually perpendicular to, and the axis of the circle pipe sleeve is parallel to each other with the side wall；The rectangular pipe sleeve and the round pipe sleeve
It is an integral molding structure；
The rectangular pipe sleeve is set in the outside of first silastic material.
4. silicon rubber outdoor open-type combination current mutual inductor according to claim 2, which is characterized in that the lasso
Material is silicon rubber.
5. silicon rubber outdoor open-type combination current mutual inductor according to claim 1, which is characterized in that the secondary system
System further includes shield box；The shield box is set in the outside of second iron core, and the secondary coil is wrapped on the shield box.
6. silicon rubber outdoor open-type combination current mutual inductor according to claim 5, which is characterized in that the shield box packet
Include the hollow iron core sleeve and two rectangle ring sets of semi-annular；
The shape of the inner ring of the rectangle ring set is identical as the inner ring shape of end face of the hollow iron core sleeve, two rectangles
The inner ring of ring set is overlapped setting, the hollow iron core sleeve and two institutes with the inner ring of the end face at the hollow iron core sleeve both ends respectively
Rectangle ring set is stated to be an integral molding structure；
Second iron core is set in the hollow iron core sleeve, and the both ends of the second iron core are respectively from two rectangle ring sets
Inner ring is stretched out；The secondary coil is wrapped in the hollow iron core sleeve.
7. silicon rubber outdoor open-type combination current mutual inductor according to claim 5, which is characterized in that the shield box
Material is ABS plastic.
8. silicon rubber outdoor open-type combination current mutual inductor according to claim 1, which is characterized in that first silicon
First iron core is put into progress silicon rubber vulcanization in mold and forms to obtain by rubber sleeve.
9. silicon rubber outdoor open-type combination current mutual inductor according to claim 1, which is characterized in that second silicon
The line packet is put into progress silicon rubber vulcanization in mold and forms to obtain by rubber sleeve.
10. silicon rubber outdoor open-type combination current mutual inductor according to claim 1, which is characterized in that the electric current
Mutual inductor further includes two sealing-plugs；
Two sealing-plugs are separately positioned on the inside at the both ends of second silastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910397054.9A CN110136942B (en) | 2019-05-14 | 2019-05-14 | Outdoor open-type combined current transformer of silicone rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910397054.9A CN110136942B (en) | 2019-05-14 | 2019-05-14 | Outdoor open-type combined current transformer of silicone rubber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110136942A true CN110136942A (en) | 2019-08-16 |
| CN110136942B CN110136942B (en) | 2024-05-24 |
Family
ID=67573532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910397054.9A Active CN110136942B (en) | 2019-05-14 | 2019-05-14 | Outdoor open-type combined current transformer of silicone rubber |
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| Country | Link |
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| CN (1) | CN110136942B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112992514A (en) * | 2019-12-02 | 2021-06-18 | 河南森源电气股份有限公司 | Open type zero sequence current transformer and manufacturing method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202736715U (en) * | 2012-06-21 | 2013-02-13 | 北京微能汇通电力技术有限公司 | Outdoor open type current transformer |
| CN207183063U (en) * | 2017-08-25 | 2018-04-03 | 苏州正罡互感器有限公司 | Measure the iron core remodeling of level current mutual inductor coil |
| CN207302861U (en) * | 2017-09-21 | 2018-05-01 | 恒源利通电气大厂有限公司 | Water proof type Open Type Electric Current Mutual Inductor |
| CN209880380U (en) * | 2019-05-14 | 2019-12-31 | 北京恒源利通电力技术有限公司 | Outdoor open-type combined current transformer of silicon rubber |
-
2019
- 2019-05-14 CN CN201910397054.9A patent/CN110136942B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202736715U (en) * | 2012-06-21 | 2013-02-13 | 北京微能汇通电力技术有限公司 | Outdoor open type current transformer |
| CN207183063U (en) * | 2017-08-25 | 2018-04-03 | 苏州正罡互感器有限公司 | Measure the iron core remodeling of level current mutual inductor coil |
| CN207302861U (en) * | 2017-09-21 | 2018-05-01 | 恒源利通电气大厂有限公司 | Water proof type Open Type Electric Current Mutual Inductor |
| CN209880380U (en) * | 2019-05-14 | 2019-12-31 | 北京恒源利通电力技术有限公司 | Outdoor open-type combined current transformer of silicon rubber |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112992514A (en) * | 2019-12-02 | 2021-06-18 | 河南森源电气股份有限公司 | Open type zero sequence current transformer and manufacturing method thereof |
| CN112992514B (en) * | 2019-12-02 | 2023-04-07 | 河南森源电气股份有限公司 | Open type zero sequence current transformer and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110136942B (en) | 2024-05-24 |
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