CN106683862A - Voltage transformer with elbow plug - Google Patents
Voltage transformer with elbow plug Download PDFInfo
- Publication number
- CN106683862A CN106683862A CN201710057145.9A CN201710057145A CN106683862A CN 106683862 A CN106683862 A CN 106683862A CN 201710057145 A CN201710057145 A CN 201710057145A CN 106683862 A CN106683862 A CN 106683862A
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- CN
- China
- Prior art keywords
- elbow
- fuse
- cable
- cavity
- extraction head
- Prior art date
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- 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
- H01F38/24—Voltage transformers
- H01F38/26—Constructions
-
- 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
- H01F27/292—Surface mounted devices
-
- 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
- H01F27/402—Association of measuring or protective means
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Fuses (AREA)
Abstract
The invention provides a voltage transformer with an elbow plug. An independent fuse seat is integrally arranged at the top of a cable socket; a fuse cavity accommodating a fuse protector is arranged in the fuse seat; an open end of the fuse cavity and the cable socket are located at the same side; an embedded part is arranged at the tail end of the fuse cavity; a detachable fixed plate is arranged at the open end of the fuse cavity; the fuse protector is arranged between the embedded part and the fixed plate; one end of the fuse protector is propped against a spring; the fuse protector is electrically connected with the embedded part and the fixed plate; a primary terminal is embedded into the cable socket; a primary conductive rod is arranged on an elbow cable plug; and when the elbow cable plug is inserted into the cable socket, the primary conductive rod is electrically connected with the primary terminal through a pressure spring and the primary terminal is connected with a primary coil through the fuse protector of the fuse cavity. When the fuse protector is replaced, the complicated process of disassembling and assembling the plug is avoided, the operation is simple and convenient, the work efficiency is improved, a lot of replacement time is shortened and the voltage transformer has very high popularization and application value.
Description
Technical field
The invention belongs to transformer technical field, and in particular to a kind of voltage transformer.
Background technology
Existing band elbow plug voltage transformer carries in itself high-tension fuse because of transformer, and elbow plug adds high pressure
Cable well can be insulated voltage high-pressure side.Elbow-type cable insertion and extraction head is installed on insulation crust, tradition is changed
Outlet of voltage, and insulation crust is built-in with changeable type fuse, without additionally mounted, reduces voltage transformer
Space floor space, therefore, the product has been used widely.In the long-play of voltage transformer, due to electricity
The fluctuation of net or operation exception, it may appear that voltage transformer fuse blows phenomenon, need attendant to change fuse immediately.
The reasons such as the miniaturization due to current electric switch, often occur the problems such as replacing fuse is bothered.
Such as the modal structure with elbow plug voltage transformer, Chinese utility model patent ZL200920061401.2
A kind of disclosed band elbow head voltage transformer, and three-phase elbow socket type voltage transformer disclosed in ZL201020690010.X,
Its structure is as shown in figure 1, the band elbow-type insertion and extraction head voltage transformer used in high-tension switch cabinet, unipolar type two plugs of configuration
Head, three match three.Its structure includes poured with epoxy resin main body 15, elbow-type cable insertion and extraction head 21, special fusion tube 18 and epoxy
The first winding 3 of the one of resin-cast, Secondary Winding 2, iron core 1, are provided with base plate 13, oxygen under poured with epoxy resin main body 15
The bottom of resin-cast main body 15 is provided with secondary terminals 12, and secondary terminals 12 are connected with Secondary Winding 2, elbow-type cable insertion and extraction head 21
Bottom is connected with high tension cable 23, and the insertion switch cabinet bottom of high tension cable 23, elbow-type cable insertion and extraction head 21 is inserted on cable socket.
The structure provides built-in fusion tube storehouse for the primary connection end of transformer, and high tension cable is molten by the direct fastening high of elbow-type insertion and extraction head
Pipe, is inserted and fixed in transformer primary connection end.Its structural insulation inside the shell is provided with special fusion tube 18, special fusion tube 18 with
Coil is electrically connected, and elbow-type cable insertion and extraction head is provided with insulation crust, and elbow-type cable insertion and extraction head is electrically connected with special fusion tube 18.
Because transformer voltage is, more than 10kV, to pressure and partial discharge test standard prescribed limits, cable insertion and extraction head itself to be required
Compact conformation, creep age distance is less, and it is very high to assemble technological requirement, be surface-treated during operation it is extremely important, it is molten to transformer
Pipe storehouse outer wall and elbow-type insertion and extraction head inwall are wiped over using Special cleaning cloth, then use vaseline uniform application, finally by plug first melt
Pipe insertion transformer locking.Whole installation process must be controlled strictly, have strict requirements (general to ambient humidity and tidiness
Can not be in raining working).In transformer operationally, outside or inside factor can cause overcurrent, when induction once protects special
Fused with fusion tube 18, it is necessary to which fusion tube is changed.There are the following problems for the structure：One is typically mounted on out due to product
Bottom of cabinet portion is closed, high tension cable is connected to switch cubicle by cable duct inlet wire, and the bending radius of cable is minimum, adds high pressure fusion tube itself
There is longer length, so when taking elbow cable insertion and extraction head apart, the special fusion tube of high pressure must be pulled out together with insertion and extraction head, so insert
Dial extremely difficult, easily cause fusion tube mouth epoxy resin of transformer damaged, seriously then cause product rejection.Its two replacings work
Sequence is complicated, and technological requirement is high.During replacing, it is necessary to first pull down high tension cable insertion and extraction head, special fusion tube is unscrewed once, more renewed
After special fusion tube, the greasy dirt of remained on surface is removed, particularly required in strict accordance with insertion and extraction head packaging technology, carry out loading onto plug
Head, while whole disassembly process is both it is noted that clean environment, drying, careful careful again, it is impossible to by filth, this causes power supply
Repairing wastes many times.
The Chinese invention patent of Patent No. ZL201210236160.7 that the applicant authorizes, discloses a kind of band elbow
Plug voltage transformer, including the first winding of the one of elbow-type end, fuse and poured with epoxy resin, Secondary Winding,
Fusing seat, cable socket, the anterior connection cable socket of the seat that fuses, elbow-type end is inserted on cable socket, accommodates fuse
Fusing seat cavity before and after insertion, the seat cavity middle part that fuses is provided with the pole plate of embedded component, bar hole, embedded component and is provided with pole plate
Secondary winding is connected；One end of fuse is provided with fixed plate, and its end face is provided with screw；Bar of the fixed plate overall dimensions less than pole plate
Hole；Fuse is located between pole plate and elbow-type end, and the fixed plate of fuse is withstood on pole plate.The invention can be adopted in electricity
Pressure transformer rear and front end is realized being changed and being installed fuse, to facilitate the use on different switch cabinet bodies.But
During the popularization of reality, because cable socket and elbow-type cable insertion and extraction head are usually located at the cabinet door end of switch cubicle, corresponding rear end is
The backboard of switch cubicle, is closed state, although is provided with the rear end with elbow plug voltage transformer and is capable of achieving to be changed
Technical scheme with fuse is installed, performs practically no function in application scenario, when changing and installing fuse, it is desired nonetheless to adopts and unloads
Lower elbow-type end is changing fuse, therefore the art solutions can not be widely applied.
The content of the invention
The present invention seeks to a kind of provide band elbow plug voltage transformer, using independent fusion tube chamber structure, fusion tube storehouse with
Elbow insertion and extraction head separates, when changing and installing fuse, it is not necessary to change fuse using elbow-type end is unloaded, and grasp
Make easy, saved substantial amounts of replacing construction.
Present invention solves the technical problem that the technical scheme for being adopted is：
A kind of band elbow plug voltage transformer, including poured with epoxy resin main body, elbow-type cable insertion and extraction head, fuse and
The first winding of the one of poured with epoxy resin, Secondary Winding, cable socket, elbow-type cable insertion and extraction head is inserted on cable socket,
It is characterized in that being integrally formed with independent fusing seat above cable socket, in fusing seat the fusing for accommodating above-mentioned fuse is provided with
Cavity, opening and the cable socket of the cavity that fuses are located at the same side, and the end of the cavity that fuses is provided with embedded component, and fuse cavity
Opening is provided with dismountable fixed plate, and fuse is arranged between embedded component and fixed plate, and one end of fuse withstands on spring
On, fuse is electrically connected with embedded component with fixed plate, and a terminal is embedded with cable socket, and elbow-type cable insertion and extraction head is provided with one
Secondary conducting rod, when elbow-type cable insertion and extraction head inserts cable socket, primary conductive bar is electrically connected by stage clip with a terminal, and one
Secondary terminal is connected by the fuse of the cavity that fuses with primary winding, and the opening of the cavity that fuses is arranged with sealing cap.
The present invention is integrally formed with independent fusing seat above cable socket, the opening and cable socket of the cavity that fuses
Positioned at the same side, fuse is located between embedded component and fixed plate, and fuse is arranged between embedded component and fixed plate, is once held
Son is connected by the fuse of the cavity that fuses with primary winding.Transformer design of the present invention once protects fuse and cable to insert
The separate structure of shifting block independence, in being applied to the switch cubicle of high tension cable pulling and inserting type, installs and safeguards separately, elbow-type cable plug
Head insertion cable socket, during installation once after the completion of, without the need for repeat plug operation；If scorification pipe occurs in running needed more
When changing, only need to change in fusion tube storehouse and complete, it is to avoid complex process and strict operation.Sealing cap is opened, lower cover is unloaded, fusion tube voluntarily bullet
Go out to change, after the completion of screw on cover plate, cover sealing cap.Present invention fusing seat is located above cable socket, with good
Insulation effect performance, effectively ensures product electric property；The opening of fusing cavity is located at the same side with cable socket, installs molten
During disconnected device, opening the cabinet door of switch cubicle can just operate enforcement, and practicality is high, it is to avoid exist more when installing or changing fuse
The troublesome problems such as insufficient space are changed, the use on different switch cabinet bodies is significantly facilitated, it is flexible for installation, be conducive to the little of switch cubicle
Typeization is designed, and easy to operate, has saved substantial amounts of replacing construction.
The present invention adopts independent fusion tube chamber structure, separates with elbow insertion and extraction head, and simple structure, reasonable in design, installation are safeguarded
It is convenient, effectively ensure product electric property, it is to avoid product easy to fusion tube storehouse can be changed when scorification pipe is protected, will not
Need to remove cable insertion and extraction head because changing fusion tube, exempt the complicated technique of dismounting insertion and extraction head, work effect is greatly improved
Rate；Without fusion tube storehouse, one time terminal is filled completely with poured with epoxy resin, institute for a high tension cable insertion and extraction head junction in the present invention
It is big with mechanical strength, will not damage because elbow insertion and extraction head is dismounted, also will not be difficult because of replacing fusion tube, damaged fusion tube storehouse of colliding with,
Cause to scrap.
When being embodied as, one time terminal is connected by wire with fixed plate, and embedded component is by wire and first winding phase
Connection；The inwall of the opening of fusing cavity is provided with step, and fixing nut is embedded with step surface, is provided with fixing screws by solid
Fixed board precession fixing nut, fixed plate is fixed on step surface, and fixing nut is connected by wire with a terminal.
When being embodied as, the poured with epoxy resin main body between cable socket and fusing seat is provided with full skirt.
When being embodied as, the profile of cable socket is tapered, connection cavity and the cable socket of elbow-type cable insertion and extraction head
Profile is adapted, and when elbow-type cable insertion and extraction head inserts cable socket, elbow-type cable insertion and extraction head is combined closely with cable socket.Mutually
The primary voltage terminal outer of sensor is consistent with elbow-type insertion and extraction head taper, and dimensional fits are appropriate.High tension cable is worn during installation
Cross elbow insertion and extraction head and fastened primary conductive bar, terminal of transformer is compressed by stage clip, be fitted close, elbow insertion and extraction head can
Tensed with hasp.
The invention has the beneficial effects as follows：The present invention is integrally formed with independent fusing seat above cable socket, and fuse chamber
The opening of body and cable socket are located at the same side, good electric property, simple structure, reasonable in design, convenient for installation and maintenance, more
It is easy to operate when changing fuse, it is to avoid the complicated technique of dismounting insertion and extraction head, work efficiency is improve, save substantial amounts of replacing
Time, it has highly application value.
Description of the drawings
Invention is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is structural representation of the prior art with elbow plug voltage transformer.
Fig. 2 is the structural representation with the embodiment of elbow plug voltage transformer one of the invention.
Fig. 3 is the contour structures schematic diagram with the embodiment of elbow plug voltage transformer one of the invention.
Fig. 4 is the contour structures schematic diagram with another embodiment of elbow plug voltage transformer of the invention.
Specific embodiment
Refer to shown in Fig. 2 and Fig. 3, a kind of band elbow plug voltage transformer, be single-phase transformers structure, first winding
3 A, B two ends are connected with high-tension line, by the electromagnetic induction of annular core 1, the direct voltage output of Secondary Winding 2, for secondary
System is measured and control is used.Its structure includes poured with epoxy resin main body 15, elbow-type cable insertion and extraction head 21, the and of fuse 7
The first winding 3 of the one of poured with epoxy resin, Secondary Winding 2, iron core 1, cable socket 4, under poured with epoxy resin main body 15
Base plate 13 is installed, the bottom of oxygen resin-cast main body 15 is provided with secondary terminals 12, and secondary terminals 12 are connected with Secondary Winding 2,
The bottom of elbow-type cable insertion and extraction head 21 is connected with high tension cable 23, the insertion switch cabinet bottom of high tension cable 23, elbow-type cable insertion and extraction head
21 are inserted on cable socket 4, and independent fusing seat 14 is integrally formed with above cable socket 4, and in fusing seat 14 receiving is provided with
The fusing cavity of above-mentioned fuse 7, also known as fusion tube storehouse, the opening and cable socket 4 of the cavity that fuses is positioned at same for fusing cavity
Side, the end of the cavity that fuses is provided with embedded component 5, and the opening of the cavity that fuses is provided with dismountable fixed plate 16, and fuse 7 is arranged
Between embedded component 4 and fixed plate 16, one end of fuse 7 is withstood on embedded component 5 by spring 6, the other end of fuse 7 with
Fixed plate 16 is electrically connected, and a terminal 10 is embedded with cable socket 4, and elbow-type cable insertion and extraction head 21 is provided with primary conductive bar 22,
When elbow-type cable insertion and extraction head 21 inserts cable socket 4, primary conductive bar 22 is electrically connected by stage clip 11 with a terminal 10, and one
Secondary terminal 10 is connected by wire with fixed plate 16, and embedded component 5 is connected by wire with first winding 3；Fusing cavity
Opening is arranged with sealing cap 9, and sealing cap 9 is silica gel material.
The inwall of the opening of described fusing cavity is provided with step, and fixing nut 8 is embedded with step surface, is provided with fixation
Screw is fixed on fixed plate 16 on step surface by the precession fixing nut 8 of fixed plate 16, and fixing nut 8 passes through wire and
Secondary terminal 10 is connected.By the structure, being detachably connected between the opening of fixed plate 16 and fusing cavity is realized.
Poured with epoxy resin main body 15 between described cable socket 4 and fusing seat 14 is provided with full skirt 17.Full skirt 17
Improve the electric property of product.
The profile of described cable socket 4 is tapered, and the connection cavity of elbow-type cable insertion and extraction head 21 is outer with cable socket 4
Shape is adapted, and when elbow-type cable insertion and extraction head 21 inserts cable socket 4, elbow-type cable insertion and extraction head 21 is closely tied with cable socket 4
Close.The outside of primary voltage terminal 10 of transformer is consistent with the taper of elbow-type cable insertion and extraction head 21, and dimensional fits are appropriate.One during installation
Sub-high pressure cable has fastened primary conductive bar 22 through elbow-type cable insertion and extraction head 21, and by stage clip terminal of transformer is compressed,
It is fitted close, elbow-type cable insertion and extraction head 21 can be tensed with hasp.
In another embodiment, refer to shown in Fig. 4, a kind of band elbow plug voltage transformer, is threephase potential transformer,
Its internal winding is formed by " V " shape or Y-connection, and its A, B, C-terminal and three-phase high-voltage connection are same secondary defeated
Go out that three-phase voltage electrical secondary system is measured and control is used.Its structure includes poured with epoxy resin main body 15, is provided with three rows
Cable socket 4, be integrally formed with the fusing seat 14 of three row's independence above cable socket 4, is provided with receiving in fusing seat 14
The fusing cavity of above-mentioned fuse, opening and the cable socket 4 of the cavity that fuses are located at the same side, and internal structure is similar above to be implemented
The single-phase potential transformer of example.
High tension cable 23 has been fastenedly connected primary conductive bar 22 by elbow-type cable insertion and extraction head 21, meets technological requirement, directly
Patch into cable socket 4, and compress a terminal of main body 15, the secondary voltage produced after high-tension electricity input passes through secondary terminals
12 outputs.Transformer makes as follows：The coiling secondary coil 2 on iron core 1, lead to secondary terminals 11, to export two
Secondary voltage.First winding 3 is wound up into one heart on the iron core 1 with Secondary Winding 2, and lead is distinguished to fusion tube in the two of first winding 3
On the embedded component 5 in storehouse, spring 6 is fixed with dormant bolt is tightened, the other end wire of fuse 7 is by fixing nut 8 and once
Terminal 9 connects, and stage clip 11 is tightened with dormant bolt, and each part components test epoxy resin one-time cast-forming, and fixed
On base 13.Electrically flow process is：High tension cable 1 is connected to consolidating for fusion tube storehouse through the conducting rod 9 of elbow-type cable insertion and extraction head 21
Determine nut 8, fusion tube storehouse port is isolated using sealing cap 9 with exterior insulation, by protecting fuse 7 embedded component 5, voltage difference are flow to
It is applied in transformer first winding 3, secondary terminals 12 is transferred to by Secondary Winding 2 and is flowed out.
When installing and using, transformer body base plate 13 is fixed on pedestal, high tension cable 23 is according to strict insertion and extraction head
Assembly technology requires that elbow-type cable insertion and extraction head 21 is inserted into cable socket 4, and primary conductive bar 22 is by stage clip 11 and a terminal
10 electrically connect, under normal circumstances Maintenance free.Protection fuse 7 is inserted and compressed by fusion tube storehouse, and port uses silica gel sealing cap 9
It is dielectrically separated from.In running, when needing to change if there is scorification pipe, external high pressure electricity need to be only disconnected, open silica gel envelope
Cap 9, unclamps fusion tube fixing nut 8, ejects fuse 7 and directly changes.It is not required to open elbow-type cable insertion and extraction head 21, it is to avoid repeat to grasp
Make strict insertion and extraction head assembly technology.
Finally, in addition it is also necessary to it is noted that listed above is only specific embodiment of the invention.Obviously, the present invention is not limited
In above example, there can also be many deformations.One of ordinary skill in the art can be direct from disclosure of the present invention
The all deformations derived or associate, are considered as protection scope of the present invention.
Claims (4)
1. a kind of band elbow plug voltage transformer, including poured with epoxy resin main body, elbow-type cable insertion and extraction head, fuse and ring
The first winding of the one of oxygen resin-cast, Secondary Winding, cable socket, elbow-type cable insertion and extraction head is inserted on cable socket, its
It is characterized in that above cable socket and is integrally formed with independent fusing seat, in fusing seat the fusing chamber for accommodating above-mentioned fuse is provided with
Body, opening and the cable socket of the cavity that fuses are located at the same side, the end of the cavity that fuses is provided with embedded component, and the cavity that fuses is opened
Mouth end is provided with dismountable fixed plate, and fuse is arranged between embedded component and fixed plate, and one end of fuse is withstood on spring,
Fuse is electrically connected with embedded component with fixed plate, and a terminal is embedded with cable socket, and elbow-type cable insertion and extraction head is provided with once
Conducting rod, when elbow-type cable insertion and extraction head inserts cable socket, primary conductive bar is electrically connected by stage clip with a terminal, once
Terminal is connected by the fuse of the cavity that fuses with primary winding, and the opening of the cavity that fuses is arranged with sealing cap.
2. a kind of band elbow plug voltage transformer according to claim 1, it is characterized in that a terminal by wire with
Fixed plate is connected, and embedded component is connected by wire with first winding；The inwall of the opening of fusing cavity is provided with step, platform
Fixing nut is embedded with terrace, fixing screws is provided with by fixed plate precession fixing nut, fixed plate is fixed on step surface
On, fixing nut is connected by wire with a terminal.
3. a kind of band elbow plug voltage transformer according to claim 1 and 2, is characterized in that cable socket with fusing seat
Between poured with epoxy resin main body be provided with full skirt.
4. according to claim 1 and 2 a kind of with elbow plug voltage transformer, the profile that it is characterized in that cable socket is in
Taper, the connection cavity of elbow-type cable insertion and extraction head is adapted with the profile of cable socket, when elbow-type cable insertion and extraction head inserts cable
During socket, elbow-type cable insertion and extraction head is combined closely with cable socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710057145.9A CN106683862B (en) | 2017-01-23 | 2017-01-23 | A kind of band elbow plug voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710057145.9A CN106683862B (en) | 2017-01-23 | 2017-01-23 | A kind of band elbow plug voltage transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106683862A true CN106683862A (en) | 2017-05-17 |
| CN106683862B CN106683862B (en) | 2018-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710057145.9A Active CN106683862B (en) | 2017-01-23 | 2017-01-23 | A kind of band elbow plug voltage transformer |
Country Status (1)
| Country | Link |
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| CN (1) | CN106683862B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107146702A (en) * | 2017-07-05 | 2017-09-08 | 河南森源电气股份有限公司 | Voltage transformer and its spring and inserts attachment structure |
| CN107731500A (en) * | 2017-10-20 | 2018-02-23 | 湖北大二互科技股份有限公司 | A kind of suppression mode of resonance threephase potential transformer that can be docked with ring main unit |
| CN110895988A (en) * | 2019-12-05 | 2020-03-20 | 廊坊芳远新合电气有限公司 | Special voltage transformer of portable connects |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0856925B1 (en) * | 1997-01-28 | 2008-02-13 | AREVA Sachsenwerk GmbH | Voltage transformer |
| CN101667720A (en) * | 2008-09-05 | 2010-03-10 | 大连北方互感器集团有限公司 | Insulating sleeve of high-voltage fuse for sulfur hexafluoride gas insulation switch cabinet |
| CN202145420U (en) * | 2011-07-12 | 2012-02-15 | 广东四会互感器厂有限公司 | Double-fuse voltage transformer with elbow-shaped sockets |
| CN102723187A (en) * | 2012-07-10 | 2012-10-10 | 浙江天际互感器有限公司 | Voltage transformer with elbow-type plug |
| CN206471221U (en) * | 2017-01-23 | 2017-09-05 | 浙江天际互感器有限公司 | A kind of band elbow plug voltage transformer |
-
2017
- 2017-01-23 CN CN201710057145.9A patent/CN106683862B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0856925B1 (en) * | 1997-01-28 | 2008-02-13 | AREVA Sachsenwerk GmbH | Voltage transformer |
| CN101667720A (en) * | 2008-09-05 | 2010-03-10 | 大连北方互感器集团有限公司 | Insulating sleeve of high-voltage fuse for sulfur hexafluoride gas insulation switch cabinet |
| CN202145420U (en) * | 2011-07-12 | 2012-02-15 | 广东四会互感器厂有限公司 | Double-fuse voltage transformer with elbow-shaped sockets |
| CN102723187A (en) * | 2012-07-10 | 2012-10-10 | 浙江天际互感器有限公司 | Voltage transformer with elbow-type plug |
| CN206471221U (en) * | 2017-01-23 | 2017-09-05 | 浙江天际互感器有限公司 | A kind of band elbow plug voltage transformer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107146702A (en) * | 2017-07-05 | 2017-09-08 | 河南森源电气股份有限公司 | Voltage transformer and its spring and inserts attachment structure |
| CN107731500A (en) * | 2017-10-20 | 2018-02-23 | 湖北大二互科技股份有限公司 | A kind of suppression mode of resonance threephase potential transformer that can be docked with ring main unit |
| CN110895988A (en) * | 2019-12-05 | 2020-03-20 | 廊坊芳远新合电气有限公司 | Special voltage transformer of portable connects |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106683862B (en) | 2018-04-17 |
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Address after: No. 8, Jingtian Road, Jiangshan Economic Development Zone, Jiangshan City, Quzhou City, Zhejiang Province 324102 Patentee after: Zhejiang Tianji Instrument Transformer Co.,Ltd. Address before: No. 2, Shanhai Road, Shanhai Cooperation Zone, Jiangshan Economic Development Zone, Quzhou City, Zhejiang Province, 324123 Patentee before: ZHEJIANG HORIZON INSTRUMENT TRANSFORMERS Co.,Ltd. |
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