CN109686537A - A kind of transformer improvement contact system - Google Patents
A kind of transformer improvement contact system Download PDFInfo
- Publication number
- CN109686537A CN109686537A CN201910024004.6A CN201910024004A CN109686537A CN 109686537 A CN109686537 A CN 109686537A CN 201910024004 A CN201910024004 A CN 201910024004A CN 109686537 A CN109686537 A CN 109686537A
- Authority
- CN
- China
- Prior art keywords
- contact
- insulator
- head
- full skirt
- fixed seat
- 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.)
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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
- H01F27/23—Corrosion protection
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- 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
- H01F27/08—Cooling; Ventilating
- H01F27/22—Cooling by heat conduction through solid or powdered fillings
-
- 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
-
- 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
- H01F27/29—Terminals; Tapping arrangements for signal inductances
-
- 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
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
-
- 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
- H01F27/40—Structural association with built-in electric component, e.g. fuse
Abstract
The invention discloses a kind of transformer improvement contact systems, including transformer shell, the front-end and back-end of the transformer shell are provided with cooling fin, cooling fin is provided with several, and it is sequentially distributed between cooling fin, contact mechanism pedestal is provided with above the transformer shell, contact mechanism is provided with above the contact mechanism pedestal, the lower end of the contact mechanism is provided with insulator lower fixed seat, porcelain insulator is provided with above the insulator lower fixed seat, insulator upper fixed seat is provided with above the porcelain insulator, electrical connection wiring card is provided with above the insulator upper fixed seat, contact under upper press nozzle static contact and fuse is respectively arranged with above the electrical connection wiring card, the side of the upper press nozzle static contact is provided with upper press nozzle moving contact.Contact system of the present invention is concentrated since specific geometry will cause internal field, and local field strength is much higher than average field-strength, in some instances it may even be possible to the problem of reaching the several times of local field strength.
Description
Technical field
The present invention relates to contact system engineering device technique field is improved, specially a kind of transformer, which is used, improves contact system.
Background technique
Contact system is one of critical component of device for switching, the main performance of device for switching and the length in service life, very
The quality of contact material is depended in big degree.Contact material usually require that with good electric conductivity, lower contact resistance,
Higher resistance fusion welding energy, higher resistance to arc erosion energy and anti-material transfer ability, due to the course of work in contactor
In, contact system is the execution unit of contactor, in use, its make-and-break contact.Also requiring to shut off, it is small, resistance to be worth
Compressive Strength height and breaking capacity are high.The microstructure of contact material has important influence, the electricity of contact material to its macro property
Performance but also is become a useful person if resistance fusion welding, arc ablation resistance and voltage endurance capability are not only related with the composition composition of contact material with group
Expect that the size of crystal grain is related, contact system presses the geometry of contact surface shape, can be divided into point contact, line contact and face contact three
Seed type.
Contact system belongs to the high-tension apparatus in transformer, and high-tension apparatus will cause due to its own specific geometry
Internal field concentrates, and local field strength is much higher than average field-strength, in some instances it may even be possible to reach the several times of local field strength, this is the design of equipment
Certain difficulty is brought with manufacture, therefore market in urgent need develops a kind of transformer and helps people to solve with improvement contact system
Existing problem.
Summary of the invention
The purpose of the present invention is to provide a kind of transformers with contact system is improved, to solve to propose in above-mentioned background technique
Contact system due to its own specific geometry will cause internal field concentrate, local field strength be much higher than average field-strength,
The problem of possibly even reaching the several times of local field strength.
To achieve the above object, the invention provides the following technical scheme: a kind of transformer, which is used, improves contact system, including become
Depressor shell, the front-end and back-end of the transformer shell are provided with cooling fin, and cooling fin is provided with several, and cooling fin
Between be sequentially distributed, be fixedly connected between the cooling fin and transformer shell, touching be provided with above the transformer shell
Head mechanism base, and be fixedly connected between contact mechanism pedestal and transformer shell, the top setting of the contact mechanism pedestal
There is contact mechanism, there are six contact mechanism settings, and the vertical center line between contact mechanism about transformer shell is symmetrical,
The lower end of the contact mechanism is provided with insulator lower fixed seat, is provided with porcelain insulating above the insulator lower fixed seat
Son is provided with insulator upper fixed seat above the porcelain insulator, is provided with above the insulator upper fixed seat electrical
Wiring card is connected, and is electrically connected between wiring card and insulator upper fixed seat and is fixedly connected by screw, the electrical connection
It is respectively arranged with contact under upper press nozzle static contact and fuse above wiring card, and is electrically connected wiring card and upper press nozzle stationary contact
It is fixedly connected between contact by screw under head and fuse, the side of the upper press nozzle static contact is provided with the dynamic touching of upper press nozzle
Head, the other side of the upper press nozzle moving contact are provided with fusion tube upper contact head, are provided with fusion tube above contact under the fuse
Lower contact is provided with fusion tube under the fusion tube, and touches on fusion tube and contact under fusion tube and fusion tube between contact and fusion tube upper contact head
Head between be fixedly connected, the inside of the porcelain insulator and insulator upper fixed seat be respectively arranged with high-head, full skirt, plug and
Ground electrode.
Preferably, the full skirt is located at the top of ground electrode, and the full skirt is located at high-head lower section.
Preferably, the plug is located at the inside of high-head, full skirt and ground electrode, and the full skirt is internally provided with uniformly
Field strength block, there are four the uniform field strength block settings, and the horizontal center line uniformly between field strength block about full skirt is symmetrical, institute
Stating high-head, full skirt and ground electrode includes copper conductor, conductor shield, anticollision net circle, corrosion-resistant coating and waterproof layer, the anticollision
Net circle is located above and below uniform field strength block.
Preferably, the uniform field strength block includes stress cone collets and stress cone conductor block, the stress cone collets
It fits between stress cone conductor block.
Preferably, the copper conductor is located at the inner surface of high-head, full skirt and ground electrode, and the corrosion-resistant coating is located at high pressure
The outer surface of head, full skirt and ground electrode.
Preferably, the conductor shield is located at the outside of copper conductor, and the waterproof layer is located at the outside of conductor shield,
The anticollision net circle is located at the inside of waterproof layer, and the outside of the waterproof layer is provided with corrosion-resistant coating.
Preferably, one end of the insulator lower fixed seat extends to the inside of contact mechanism pedestal.
Preferably, the insulator lower fixed seat, porcelain insulator and insulator upper fixed seat are structure as a whole.
Preferably, the full skirt is provided with multiple, and is sequentially distributed between full skirt.
Preferably, one end of contact extends to the inside of contact under fusion tube under the fuse, and under fuse contact with
Contact is electrically connected under fusion tube, and one end of the upper press nozzle static contact extends to the inside of upper press nozzle moving contact, and upper press nozzle is quiet
Contact and upper press nozzle moving contact are electrically connected.
Compared with prior art, the beneficial effects of the present invention are:
1. equipment can be greatly increased in the method for guaranteeing apparatus insulated performance by increasing insulation size on the market at present
Manufacture, transport and assembly cost；And only can not alleviate local high field intensity by increasing insulation size, it can but accelerate to insulate
The ageing process of material brings potential risks for the long-term safety reliability service of equipment.Therefore, rationally improve field distribution,
The high field intensity alleviated at key position is most important for the Insulation Problems of high-tension apparatus, and traditional method for equalizing voltage is mainly from change
The insulation system of equipment is started with, and essence is that change or additional electrode carry out pressure partial pressure, to achieve the effect that press.Main side
Method plays the role of inner shield including changing electrode shape, being embedded in metal in dielectric, and it is flat that layer is added inside dielectric
Row capacitor plate installs equalizing capacitance etc. in parallel, so on dielectric surface or peripheral disposition grading ring as target
And the equalizing effect of these methods also has larger difficulty than relatively limited in design, while additional structure may also be able to be equipment
Operation bring new hidden danger.Solves the problems, such as this by the way that uniform field strength block is arranged, when uniform field strength block uses nonlinear material
Field distribution, the highest field strength in stress cone collets mainly appears on the boundary of stress cone conductor block Yu stress cone collets
At face, this part is also that the field strength for the position that cable termination is easiest to failure can be weakened severely, stress cone insulation
Field distribution in block is also uniform more than existing, solves contact system since its own specific geometry will cause part
Electric field is concentrated, and local field strength is much higher than average field-strength, in some instances it may even be possible to the problem of reaching the several times of local field strength.
2. the present invention effectively alleviates local high field intensity, reduces by that can play the role of well pressure in plug
The high field intensity of contact mechanism.
3. the present invention is protected by setting corrosion-resistant coating to contact mechanism, effectively prevents from being placed in outdoor for a long time, touch
Head mechanism receives rainwater bedroom, corrodes, and is effectively protected to contact mechanism offer, extends the service life of contact mechanism.
4. the present invention increases the toughness of contact mechanism by setting anticollision net circle, touching when flying bird or transport can be prevented
The damage to contact mechanism is hit and waved, the service life of contact mechanism is extended.
Detailed description of the invention
Fig. 1 is whole main view of the invention；
Fig. 2 is the structural schematic diagram of contact mechanism of the invention；
Fig. 3 is the structural schematic diagram of insulator lower fixed seat of the invention, porcelain insulator and insulator upper fixed seat；
The position Fig. 4 area A partial enlarged view of the invention.
In figure: 1, transformer shell；2, cooling fin；3, contact mechanism pedestal；4, contact mechanism；5, fixed under insulator
Seat；6, porcelain insulator；7, insulator upper fixed seat；8, it is electrically connected wiring card；9, upper press nozzle static contact；10, the dynamic touching of upper press nozzle
Head；11, fusion tube upper contact head；12, fusion tube；13, contact under fusion tube；14, contact under fuse；15, high-head；16, full skirt；17,
Plug；18, ground electrode；19, uniform field strength block；20, copper conductor；21, conductor shield；22, anticollision net circle；23, corrosion-resistant coating；
24, stress cone collets；25, stress cone conductor block；26, waterproof layer.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Fig. 1-4 is please referred to, a kind of embodiment provided by the invention: a kind of transformer improvement contact system, including transformation
Device shell 1, the front-end and back-end of transformer shell 1 are provided with cooling fin 2, and cooling fin 2 is provided with several, and cooling fin 2
Between be sequentially distributed, radiated well to transformer by the setting of multiple cooling fins 2, cooling fin 2 and transformer shell 1
Between be fixedly connected, the setting being fixedly connected makes the connection of cooling fin 2 and transformer shell 1 more firm, transformer shell 1
Top is provided with contact mechanism pedestal 3, and the setting of contact mechanism pedestal 3 provides fixed support, and contact machine to contact mechanism 4
It is fixedly connected between structure pedestal 3 and transformer shell 1, the setting being fixedly connected allows contact mechanism pedestal 3 and transformer shell 1
Connection is more firm, and the top of contact mechanism pedestal 3 is provided with contact mechanism 4, and there are six the settings of contact mechanism 4, and contact machine
Vertical center line between structure 4 about transformer shell 1 is symmetrical, and the lower end of contact mechanism 4 is provided with insulator lower fixed seat
5, the top of insulator lower fixed seat 5 is provided with porcelain insulator 6, and the top of porcelain insulator 6 is provided with insulator upper fixed seat 7,
The top of insulator upper fixed seat 7 is provided with electrical connection wiring card 8, and is electrically connected wiring card 8 and insulator upper fixed seat 7
Between be fixedly connected by screw, screw connection convenient for electrical connection wiring card 8 and insulator upper fixed seat 7 between installation tears open
It unloads, reduces installation strength, also reduce erector's technology content, it is quiet that the top of electrical connection wiring card 8 is respectively arranged with upper press nozzle
Contact 14 under contact 9 and fuse, and be electrically connected under wiring card 8 and upper press nozzle static contact 9 and fuse and lead between contact 14
It crosses screw to be fixedly connected, screw connection is convenient between contact 14 under electrical connection wiring card 8 and upper press nozzle static contact 9 and fuse
Installing and dismounting, reduce installation strength, also reduce erector's technology content, the side of upper press nozzle static contact 9 is provided with upper press nozzle
Moving contact 10, the other side of upper press nozzle moving contact 10 are provided with fusion tube upper contact head 11, and the top of contact 14 is provided under fuse
Contact 13 under fusion tube are provided with fusion tube 12, and contact under fusion tube 12 and fusion tube under fusion tube between contact 13 and fusion tube upper contact head 11
It is fixedly connected between 13 and fusion tube upper contact head 11, the setting being fixedly connected allows contact 13 and fusion tube upper contact head under fusion tube 12 and fusion tube
11 connection is more firm, and the inside of porcelain insulator 6 and insulator upper fixed seat 7 is respectively arranged with high-head 15, full skirt 16, core
Stick 17 and ground electrode 18 by the setting of each structure contact mechanism 4 can be weakened to field strength.
Further, full skirt 16 is located at the top of ground electrode 18, and full skirt 16 is located at the lower section of high-head 15, by by full skirt 16
Setting weakens field strength between ground electrode 18 and high-head 15, to protect to contact mechanism 4, extends contact machine
The service life of structure reduces the number and expense of maintenance.
Further, plug 17 is located at the inside of high-head 15, full skirt 16 and ground electrode 18, and full skirt 16 is internally provided with
The strong block 19 of shimming, there are four the uniform settings of field strength block 19, and the uniformly horizontal center line phase between field strength block 19 about full skirt 16
Symmetrically, effectively alleviated by the high field intensity that the setting of each structure realizes 17 pairs of parts of plug, high-head 15, full skirt 16 and ground
Electrode 18 include copper conductor 20, conductor shield 21, anticollision net circle 22, corrosion-resistant coating 23 and waterproof layer 26, anticollision net circle 22
Above and below uniform field strength block 19.
Further, uniform field strength block 19 includes stress cone collets 24 and stress cone conductor block 25, stress cone collets 24
It fits between stress cone conductor block 25, is realized by the setting of stress cone collets 24 and stress cone conductor block 25 to field
Strong weakening.
Further, copper conductor 20 is located at the inner surface of high-head 15, full skirt 16 and ground electrode 18, and corrosion-resistant coating 23 is located at height
The outer surface of pressure head 15, full skirt 16 and ground electrode 18 provides contact mechanism 4 by the setting of each structure and is effectively protected,
Extend the service life of contact mechanism 4.
Further, conductor shield 21 is located at the outside of copper conductor 20, and waterproof layer 26 is located at the outside of conductor shield 21,
Anticollision net circle 22 is located at the inside of waterproof layer 26, and the setting of anticollision net circle 22 increases the toughness of contact mechanism 4, to contact mechanism
4 provide protection, and the outside of waterproof layer 26 is provided with corrosion-resistant coating 23, and corrosion-resistant coating 23 can effectively increase contact mechanism 4
Antiseptic property extends the service life of contact mechanism 4.
Further, one end of insulator lower fixed seat 5 extends to the inside of contact mechanism pedestal 3, by will be under insulator
Fixing seat 5 extends to the inside of contact mechanism pedestal 3, and electric current is conducted to transformer.
Further, insulator lower fixed seat 5, porcelain insulator 6 and insulator upper fixed seat 7 are structure as a whole, and pass through one
The setting of structure makes the connection between insulator lower fixed seat 5, porcelain insulator 6 and insulator upper fixed seat 7 more firm.
Further, full skirt 16 is provided with multiple, and is sequentially distributed between full skirt 16, can be with by the settings of multiple full skirts 16
It is effective to weaken field strength.
Further, one end of contact 14 extends to the inside of contact 13 under fusion tube, and contact 14 under fuse under fuse
It is electrically connected with contact 13 under fusion tube, being allowed under fuse by the setting of electric connection can between contact 13 under contact 14 and fusion tube
To realize the conduction of electric energy, one end of upper press nozzle static contact 9 extends to the inside of upper press nozzle moving contact 10, and upper press nozzle static contact
9 are electrically connected with upper press nozzle moving contact 10, by the setting of electric connection allow upper press nozzle static contact 9 and upper press nozzle moving contact 10 it
Between the conduction of electric energy may be implemented.
Working principle: in use, be moved to transformer needs position to be mounted to install first, in transport, by
The damage to contact mechanism 4 is swung when being provided with anticollision net circle 22 on contact mechanism 4 effectively can buffer transport, to contact
Mechanism 4, which provides, to be effectively protected, and corrosion-resistant coating 23 effectively provides corrosion-resistant effect to contact mechanism 4 when use, thus
Extend the service life of contact mechanism 4, field distribution when uniform field strength block 19 is using nonlinear material, stress cone collets 24
In highest field strength, mainly appear on the interface of stress cone conductor block 25 Yu stress cone collets 24, this part be also electricity
Cable terminal is easiest to the position broken down, and can be weakened severely by the setting field strength of uniform field strength block 19, stress cone is exhausted
Field distribution in edge block 24 is also uniform more than existing.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (10)
1. a kind of transformer improvement contact system, including transformer shell (1), it is characterised in that: the transformer shell (1)
Front-end and back-end be provided with cooling fin (2), cooling fin (2) is provided with several, and is sequentially distributed between cooling fin (2),
It is fixedly connected between the cooling fin (2) and transformer shell (1), is provided with contact machine above the transformer shell (1)
Structure pedestal (3), and be fixedly connected between contact mechanism pedestal (3) and transformer shell (1), the contact mechanism pedestal (3)
Top is provided with contact mechanism (4), and there are six contact mechanism (4) settings, and about transformer shell between contact mechanism (4)
(1) vertical center line is symmetrical, and the lower end of the contact mechanism (4) is provided with insulator lower fixed seat (5), the insulator
It is provided with above lower fixed seat (5) porcelain insulator (6), is provided with insulator upper fixed seat above the porcelain insulator (6)
(7), be provided with above the insulator upper fixed seat (7) electrical connection wiring card (8), and be electrically connected wiring card (8) with
Insulator upper fixed seat is fixedly connected between (7) by screw, is respectively arranged with above the electrical connection wiring card (8)
Contact (14) under pressure mouth static contact (9) and fuse, and it is electrically connected wiring card (8) and upper press nozzle static contact (9) and fuse
It is fixedly connected between lower contact (14) by screw, the side of the upper press nozzle static contact (9) is provided with upper press nozzle moving contact
(10), the other side of the upper press nozzle moving contact (10) is provided with fusion tube upper contact head (11), contact (14) under the fuse
Top is provided with contact under fusion tube (13), is provided with fusion tube between contact (13) and fusion tube upper contact head (11) under the fusion tube
(12), and between fusion tube (12) and contact under fusion tube (13) and fusion tube upper contact head (11) be fixedly connected, the porcelain insulator (6) and
The inside of insulator upper fixed seat (7) is respectively arranged with high-head (15), full skirt (16), plug (17) and ground electrode (18).
2. a kind of transformer according to claim 1 improvement contact system, it is characterised in that: the full skirt (16) is located at
The top of ground electrode (18), the full skirt (16) are located at the lower section of high-head (15).
3. a kind of transformer according to claim 1 improvement contact system, it is characterised in that: the plug (17) is located at
The inside of high-head (15), full skirt (16) and ground electrode (18), the full skirt (16) are internally provided with uniform field strength block (19),
There are four uniform field strength block (19) settings, and the horizontal center line uniformly between field strength block (19) about full skirt (16) is opposite
Claim, the high-head (15), full skirt (16) and ground electrode (18) include copper conductor (20), conductor shield (21), anticollision net circle
(22), corrosion-resistant coating (23) and waterproof layer (26), the anticollision net circle (22) are located above and below uniform field strength block (19).
4. a kind of transformer according to claim 3 improvement contact system, it is characterised in that: the uniform field strength block
It (19) include stress cone collets (24) and stress cone conductor block (25), the stress cone collets (24) and stress cone conductor block
(25) it fits between.
5. a kind of transformer according to claim 3 improvement contact system, it is characterised in that: copper conductor (20) position
In high-head (15), the inner surface of full skirt (16) and ground electrode (18), the corrosion-resistant coating (23) is located at high-head (15), full skirt
(16) and the outer surface of ground electrode (18).
6. a kind of transformer according to claim 5 improvement contact system, it is characterised in that: the conductor shield
(21) it is located at the outside of copper conductor (20), the waterproof layer (26) is located at the outside of conductor shield (21), the anticollision net circle
(22) it is located at the inside of waterproof layer (26), the outside of the waterproof layer (26) is provided with corrosion-resistant coating (23).
7. a kind of transformer according to claim 1 improvement contact system, it is characterised in that: fixed under the insulator
One end of seat (5) extends to the inside of contact mechanism pedestal (3).
8. a kind of transformer according to claim 1 improvement contact system, it is characterised in that: fixed under the insulator
Seat (5), porcelain insulator (6) and insulator upper fixed seat (7) are structure as a whole.
9. a kind of transformer according to claim 1 improvement contact system, it is characterised in that: full skirt (16) setting
Have multiple, and is sequentially distributed between full skirt (16).
10. a kind of transformer according to claim 1 improvement contact system, it is characterised in that: touched under the fuse
One end of head (14) extends to the inside of contact under fusion tube (13), and contact (14) and contact (13) under fusion tube are electrical under fuse
Connection, one end of the upper press nozzle static contact (9) extends to the inside of upper press nozzle moving contact (10), and upper press nozzle static contact (9)
It is electrically connected with upper press nozzle moving contact (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910024004.6A CN109686537A (en) | 2019-01-10 | 2019-01-10 | A kind of transformer improvement contact system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910024004.6A CN109686537A (en) | 2019-01-10 | 2019-01-10 | A kind of transformer improvement contact system |
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| Publication Number | Publication Date |
|---|---|
| CN109686537A true CN109686537A (en) | 2019-04-26 |
Family
ID=66192975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910024004.6A Pending CN109686537A (en) | 2019-01-10 | 2019-01-10 | A kind of transformer improvement contact system |
Country Status (1)
| Country | Link |
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| CN (1) | CN109686537A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113744971A (en) * | 2021-08-31 | 2021-12-03 | 上海宝冶冶金工程有限公司 | Method for interconversion between oil-immersed high-voltage head and dry-type high-voltage head |
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| CN202930141U (en) * | 2012-11-30 | 2013-05-08 | 浙江新能高压电气有限公司 | Lightning protection column type composite insulator |
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| CN206076031U (en) * | 2016-08-30 | 2017-04-05 | 申达电气集团有限公司 | A kind of intelligent three-phase electric power transformator for being capable of remotely control |
| CN206922426U (en) * | 2017-07-17 | 2018-01-23 | 毋耀宗 | A kind of overhead line overvoltage protection device |
| CN207719129U (en) * | 2017-12-21 | 2018-08-10 | 扬州发运电气有限公司 | A kind of organic composite fuse switch |
| CN108597740A (en) * | 2018-04-11 | 2018-09-28 | 辛成辉 | A kind of novel transformer protection shell with monitoring function |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3248636A (en) * | 1962-05-31 | 1966-04-26 | Westinghouse Electric Corp | Electrical converters |
| CN202930141U (en) * | 2012-11-30 | 2013-05-08 | 浙江新能高压电气有限公司 | Lightning protection column type composite insulator |
| CN205092556U (en) * | 2015-09-08 | 2016-03-16 | 沈阳国联电缆附件制造有限公司 | 35 outdoor cable termination of prefabricated formula of kilovolt |
| CN206076031U (en) * | 2016-08-30 | 2017-04-05 | 申达电气集团有限公司 | A kind of intelligent three-phase electric power transformator for being capable of remotely control |
| CN206922426U (en) * | 2017-07-17 | 2018-01-23 | 毋耀宗 | A kind of overhead line overvoltage protection device |
| CN207719129U (en) * | 2017-12-21 | 2018-08-10 | 扬州发运电气有限公司 | A kind of organic composite fuse switch |
| CN108597740A (en) * | 2018-04-11 | 2018-09-28 | 辛成辉 | A kind of novel transformer protection shell with monitoring function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113744971A (en) * | 2021-08-31 | 2021-12-03 | 上海宝冶冶金工程有限公司 | Method for interconversion between oil-immersed high-voltage head and dry-type high-voltage head |
| CN113744971B (en) * | 2021-08-31 | 2023-07-25 | 上海宝冶冶金工程有限公司 | Method for mutually converting oil-immersed high-pressure head and dry high-pressure head |
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Application publication date: 20190426 |
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| RJ01 | Rejection of invention patent application after publication |