CN108447667A - A kind of safe voltage transformer - Google Patents
A kind of safe voltage transformer Download PDFInfo
- Publication number
- CN108447667A CN108447667A CN201810419428.8A CN201810419428A CN108447667A CN 108447667 A CN108447667 A CN 108447667A CN 201810419428 A CN201810419428 A CN 201810419428A CN 108447667 A CN108447667 A CN 108447667A
- Authority
- CN
- China
- Prior art keywords
- shell
- voltage transformer
- terminal box
- winding
- safe
- 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.)
- Pending
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- 229920001971 elastomer Polymers 0.000 claims abstract description 37
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 238000004804 winding Methods 0.000 claims description 36
- 238000012544 monitoring process Methods 0.000 claims description 24
- 239000012212 insulator Substances 0.000 claims description 17
- 238000005259 measurement Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 4
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920001568 phenolic resin Polymers 0.000 claims description 3
- 239000005011 phenolic resin Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- HBGPNLPABVUVKZ-POTXQNELSA-N (1r,3as,4s,5ar,5br,7r,7ar,11ar,11br,13as,13br)-4,7-dihydroxy-3a,5a,5b,8,8,11a-hexamethyl-1-prop-1-en-2-yl-2,3,4,5,6,7,7a,10,11,11b,12,13,13a,13b-tetradecahydro-1h-cyclopenta[a]chrysen-9-one Chemical compound C([C@@]12C)CC(=O)C(C)(C)[C@@H]1[C@H](O)C[C@]([C@]1(C)C[C@@H]3O)(C)[C@@H]2CC[C@H]1[C@@H]1[C@]3(C)CC[C@H]1C(=C)C HBGPNLPABVUVKZ-POTXQNELSA-N 0.000 claims 1
- PFRGGOIBYLYVKM-UHFFFAOYSA-N 15alpha-hydroxylup-20(29)-en-3-one Natural products CC(=C)C1CCC2(C)CC(O)C3(C)C(CCC4C5(C)CCC(=O)C(C)(C)C5CCC34C)C12 PFRGGOIBYLYVKM-UHFFFAOYSA-N 0.000 claims 1
- SOKRNBGSNZXYIO-UHFFFAOYSA-N Resinone Natural products CC(=C)C1CCC2(C)C(O)CC3(C)C(CCC4C5(C)CCC(=O)C(C)(C)C5CCC34C)C12 SOKRNBGSNZXYIO-UHFFFAOYSA-N 0.000 claims 1
- 239000010426 asphalt Substances 0.000 claims 1
- 238000007689 inspection Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 230000008439 repair process Effects 0.000 abstract description 9
- 230000008859 change Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005350 ferromagnetic resonance Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- 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
- H01F27/02—Casings
- H01F27/022—Encapsulation
-
- 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
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses a kind of safe voltage transformer, the configuration of the present invention is simple, several single-phase transformers are arranged in the plane to be contributed under the different schemes of single-phase transformers to utilize individual event sensor, realizes that the present invention is applicable in the function of more occasion；The effect for being provided with change, repair conducive to the terminal box inside help of switch gate, snapping connection contributes to the closed of switch gate；Being glued between switch gate and the gap of shell has sealing ring, assists in and is sealed therebetween, prevents the junction box being located in shell from leak etc. occurs；Rubber antenna is evenly distributed on sheet rubber, terminal box is arranged between rubber antenna, enclosure interior can be made to be adapted to smaller terminal box, rubber antenna is provided with conducive to helping terminal box not moved in shell, it prevents it from colliding with enclosure interior, increases the service life of the present invention.
Description
Technical field
The present invention relates to a kind of safe voltage transformers, belong to the technical field of power technology.
Background technology
Voltage transformer is similar with transformer, is the instrument of the voltage on conversion line.But transformer transformation electricity
The purpose of pressure is to convey electric energy, therefore capacity is very big, typically using kilovolt-ampere or megavolt-ampere as unit of account；And voltage
The purpose of mutual inductor voltage of transformation is primarily used to power to measuring instrumentss and protective relaying device, for measuring the electricity of circuit
Pressure, power and electric energy, or for expensive equipment, motor and the transformer in the protection circuit in line failure, therefore
The capacity very little of voltage transformer generally all only has several volt-amperes, tens volt-amperes, and maximum is also no more than one kilovolt-ampere.Entry introduction
It is its basic structure, operation principle, main Types, the mode of connection, points for attention, abnormal with processing and ferromagnetic resonance etc..
The existing mutual inductor in traditional market can only use a kind of mounting means, and structure is single, and the mutual induction of voltage of half
Lead to its service life reduction due to exposing to the weather when device uses outdoors, is unfavorable for the work of electric system.Existing open air
Winding interferes with each other inside voltage transformer, causes precision not high, and the insulation crust tolerance outdoor environment of mutual inductor and ultraviolet
Line, there are some potential safety problemss.
Invention content
It is an object of the present invention to provide a kind of safe voltage transformers.
To achieve the goals above, the technical solution adopted by the present invention is a kind of safe voltage transformer, including
Shell, the single-phase transformers being arranged on shell and the terminal box being arranged in shell, it is characterised in that：The shell includes
Upper and lower two plane and connection cambered surface between two planes are integrally formed between the three, are offered in the cambered surface
One hinged switch gate.
As a kind of above-mentioned preferred embodiment, the single-phase transformers are provided with several and are arranged in the plane.
Through the above technical solutions, several single-phase transformers are arranged in the plane contributes to the not Tongfang of single-phase transformers
Individual event sensor is utilized under case, realizes that the present invention is applicable in the function of more occasion.
As a kind of above-mentioned preferred embodiment, snapped connection between the switch gate other end and shell.
Through the above technical solutions, the effect for being provided with change, repair conducive to the terminal box inside help of switch gate,
Snapping connection contributes to the closed of switch gate.
As a kind of above-mentioned preferred embodiment, sealing ring is provided between the switch gate and the gap of shell.
Through the above technical solutions, being glued between switch gate and the gap of shell has sealing ring, the two is assisted in
Between be sealed, prevent the junction box being located in shell from leak etc. occurs.
As a kind of above-mentioned preferred embodiment, the terminal box is arranged in the inside of shell, and the upper and lower of the enclosure interior is put down
Being glued on face has sheet rubber, is evenly distributed with rubber antenna on the sheet rubber, the terminal box setting rubber antenna it
Between, the small terminal box height 2-3cm of the distance between described rubber antenna.
Through the above technical solutions, being evenly distributed with rubber antenna on sheet rubber, terminal box is arranged between rubber antenna,
Enclosure interior can be made to be adapted to smaller terminal box, rubber antenna is provided with conducive to help terminal box not in shell
Interior movement, prevents it from colliding with enclosure interior, increases the service life of the present invention.
As a kind of above-mentioned preferred embodiment, the secondary terminals of the single-phase transformers are electrically connected by connecting line with terminal box
It connects, the single-phase transformers are internally provided with iron ring.
Through the above technical solutions, the secondary terminals of single-phase transformers are electrically connected by connecting line and terminal box, it can
Ensure that the present invention can be normally carried out operation.
As a kind of above-mentioned preferred embodiment, measurement winding, monitoring winding, safe winding are provided on the iron ring, it is described
Measurement winding is used to monitor the real-time status of overvoltage for measuring turn on angle, the monitoring winding, and the safe winding is used for
Carry out the safety monitoring of voltage transformer.
Through the above technical solutions, measurement winding can measure turn on angle, can learn turn on angle number, carry out prison
It surveys, monitoring winding can detect the real-time status of voltage, realize that the monitoring for voltage transformer of the present invention, safe winding are used for
The safety custody for voltage transformer is carried out, prevents voltage overload from causing calamity.
As a kind of above-mentioned preferred embodiment, the shells of the single-phase transformers is insulator, and the totally-enclosed one of insulator
Molding, mutual inductor internal components are fixed by screws in enclosure.
Through the above technical solutions, integrally formed insulator can ensure the safety of single-phase transformers, can prevent
It leaks electricity, and the device inside mutual inductor can be consolidated and is fixed in insulator, ensure the job security of voltage transformer.
As a kind of above-mentioned preferred embodiment, being electrically connected at safe winding side, there are one voltage monitoring module and alarms
Device, the voltage monitoring module are used to carry out the monitoring of voltage, and the alarm is alarmed for carrying out circuit voltage overload.
Through the above technical solutions, voltage detection module can detect whether voltage overloads, it can be by signal if overload
Be sent to alarm, alarm pipes, prompt staff come repair or open circuit work.
As a kind of above-mentioned preferred embodiment, the insulator is the one of which in epoxy resin, phenolic resin.
The beneficial effects of the present invention are：The configuration of the present invention is simple is arranged several single-phase transformers and helps in the plane
Individual event sensor is utilized under the different schemes of single-phase transformers, realizes that the present invention is applicable in the function of more occasion；Switch gate
Be provided with conducive to help inside terminal box change, repair effect, snapping connection contributes to the closed of switch gate；Switch
Being glued between door and the gap of shell has sealing ring, assists in and is sealed therebetween, prevents from being located at connecing in shell
Leak etc. occurs inside wire box；Rubber antenna is evenly distributed on sheet rubber, terminal box is arranged between rubber antenna, can make
It obtains enclosure interior and is adapted to smaller terminal box, rubber antenna is provided with conducive to helping terminal box not moved in shell
It is dynamic, it prevents it from colliding with enclosure interior, increases the service life of the present invention；The secondary terminals of single-phase transformers pass through connection
Line is electrically connected with terminal box, can ensure that the present invention can be normally carried out operation；Measurement winding can measure turn on angle, can
Learn turn on angle number, carry out monitoring, monitoring winding can detect the real-time status of voltage, realize mutual for voltage of the present invention
The monitoring of sensor, safe winding are used to carry out the safety custody for voltage transformer, prevent voltage overload from causing calamity；One
Molding insulator can ensure the safety of single-phase transformers, can prevent its electric leakage, and the device inside mutual inductor can
It is fixed in insulator, ensures the job security of voltage transformer；Whether voltage detection module can detect voltage
Overload can send the signal to alarm if overload, and alarm pipes, and prompt staff to repair or breaking work
Make.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is single-phase transformers structural schematic diagram of the present invention.
1- shells；2- individual event mutual inductors；3- terminal boxes；4- cambered surfaces；5- planes；6- switch gates；7- sealing rings；8- rubber
Piece；9- rubber antennas；10- iron rings；11- measures winding；12- monitors winding；The safe windings of 13-；15- voltage detection modules；
16- alarms.
Specific implementation mode
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 describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Shown in attached drawing, the technical solution adopted by the present invention is that the technical solution adopted by the present invention is a kind of safe
Voltage transformer, including shell 1, the single-phase transformers being arranged on shell 1 and the terminal box 3 being arranged in shell 1,
It is characterized in that：The shell 1 includes upper and lower two plane 5 and the cambered surface 4 that is connected between two planes 5, between the three
It is integrally formed, a hinged switch gate 7 is offered in the cambered surface 4.
As a kind of above-mentioned preferred embodiment, the single-phase transformers are provided with several and are arranged in plane 5.
Through the above technical solutions, several single-phase transformers are arranged in plane 5 contributes to the difference of single-phase transformers
Individual event sensor is utilized under scheme, realizes that the present invention is applicable in the function of more occasion.
As a kind of above-mentioned preferred embodiment, snapped connection between 7 other end of the switch gate and shell 1.
Through the above technical solutions, the work for being provided with change, repair conducive to the terminal box 3 inside help of switch gate 7
With snapping connection contributes to the closed of switch gate 7.
As a kind of above-mentioned preferred embodiment, sealing ring 7 is provided between the switch gate 7 and the gap of shell 1.
Both through the above technical solutions, being glued between switch gate 7 and the gap of shell 1 has sealing ring 7, assist in
Between be sealed, prevent the terminal box 3 being located in shell 1 inside from leak etc. occurs.
As a kind of above-mentioned preferred embodiment, the terminal box 3 is arranged upper inside the inside of shell 1, the shell 1
Being glued on lower plane 5 has sheet rubber 8, and rubber antenna 9 is evenly distributed on the sheet rubber 8, and the setting of the terminal box 3 exists
Between rubber antenna 9,3 height 2-3cm of the small terminal box of the distance between described rubber antenna 9.
Through the above technical solutions, being evenly distributed with rubber antenna 9 on sheet rubber 8, terminal box 3 is arranged in rubber antenna 9
Between, it can be adapted to smaller terminal box 3 inside shell 1, rubber antenna 9 is provided with conducive to wiring is helped
Box 3 does not move in shell 1, prevents itself and 1 impacted inside of shell, increases the service life of the present invention.
As a kind of above-mentioned preferred embodiment, the secondary terminals of the single-phase transformers are electrically connected by connecting line with terminal box
It connects, the single-phase transformers are internally provided with iron ring 10.
Through the above technical solutions, the secondary terminals of single-phase transformers are electrically connected by connecting line and terminal box, it can
Ensure that the present invention can be normally carried out operation.
As a kind of above-mentioned preferred embodiment, be provided on the iron ring 10 measurement winding 11, monitoring winding 12, safety around
Group 13, for the measurement winding 11 for measuring turn on angle, the monitoring winding 12 is used to monitor the real-time status of overvoltage, described
Safe winding 13 is used to carry out the safety monitoring of voltage transformer.
Through the above technical solutions, measurement winding 11 can measure turn on angle, can learn turn on angle number, carry out prison
It surveys, monitoring winding 12 can detect the real-time status of voltage, realize the monitoring for voltage transformer of the present invention, safe winding 13
For carrying out the safety custody for voltage transformer, prevent voltage overload from causing calamity.
As a kind of above-mentioned preferred embodiment, the shells of the single-phase transformers is insulator, and the totally-enclosed one of insulator
Molding, mutual inductor internal components are fixed by screws in enclosure.
Through the above technical solutions, integrally formed insulator can ensure the safety of single-phase transformers, can prevent
It leaks electricity, and the device inside mutual inductor can be consolidated and is fixed in insulator, ensure the job security of voltage transformer.
As a kind of above-mentioned preferred embodiment, being electrically connected at 13 side of safe winding, there are one voltage monitoring module and alarms
Device 16, the voltage monitoring module are used to carry out the monitoring of voltage, and the alarm 16 is carried out for carrying out circuit voltage overload
Alarm.
Through the above technical solutions, voltage detection module 15 can detect whether voltage overloads, can will believe if overload
Number it is sent to alarm 16, alarm 16 pipes, and prompts staff to repair or open circuit work.
As a kind of above-mentioned preferred embodiment, the insulator is the one of which in epoxy resin, phenolic resin.
The beneficial effects of the present invention are：The configuration of the present invention is simple is arranged several single-phase transformers and helps in the plane
Individual event sensor is utilized under the different schemes of single-phase transformers, realizes that the present invention is applicable in the function of more occasion；Switch gate
Be provided with conducive to help inside terminal box change, repair effect, snapping connection contributes to the closed of switch gate；Switch
Being glued between door and the gap of shell has sealing ring, assists in and is sealed therebetween, prevents from being located at connecing in shell
Leak etc. occurs inside wire box；Rubber antenna is evenly distributed on sheet rubber, terminal box is arranged between rubber antenna, can make
It obtains enclosure interior and is adapted to smaller terminal box, rubber antenna is provided with conducive to helping terminal box not moved in shell
It is dynamic, it prevents it from colliding with enclosure interior, increases the service life of the present invention；The secondary terminals of single-phase transformers pass through connection
Line is electrically connected with terminal box, can ensure that the present invention can be normally carried out operation；Measurement winding 11 can measure turn on angle, energy
Enough learn turn on angle number, carry out monitoring, monitoring winding 12 can detect the real-time status of voltage, realize for the present invention
The monitoring of voltage transformer, safe winding 13 are used to carry out the safety custody for voltage transformer, prevent voltage overload from causing
Calamity；Integrally formed insulator can ensure the safety of single-phase transformers, can prevent its electric leakage, and inside mutual inductor
Device can be consolidated and is fixed in insulator, ensure the job security of voltage transformer；Voltage detection module 15 can monitor
Go out whether voltage overloads, if overload if can send the signal to alarm 16, alarm 16 pipes, prompt staff come into
Row repair or open circuit work.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. a kind of safe voltage transformer, including shell (1), the single-phase transformers that are arranged on shell (1) and set
Set the terminal box (3) in shell (1), it is characterised in that：The shell (1) includes upper and lower two plane (5) and is connected to two
Cambered surface (4) between a plane (5) is integrally formed between the three, a hinged switch gate is offered on the cambered surface (4)
(6)。
2. safe voltage transformer according to claim 1, it is characterised in that：The single-phase transformers are provided with
Several and be arranged in plane (5).
3. safe voltage transformer according to claim 1, it is characterised in that：Switch gate (6) other end
It is snapped connection between shell (1).
4. safe voltage transformer according to claim 2, it is characterised in that：The switch gate (6) and shell
(1) sealing ring (7) is provided between gap.
5. safe voltage transformer according to claim 1, it is characterised in that：Terminal box (3) setting exists
The inside of shell (1), being glued on the internal lower planes (5) of the shell (1) has sheet rubber (8), on the sheet rubber (8)
It is evenly distributed with rubber antenna (9), the terminal box (3) is arranged between rubber antenna (9), between the rubber antenna (9)
The small terminal box of distance (3) height 2-3cm.
6. safe voltage transformer according to claim 1, it is characterised in that：The single-phase transformers it is secondary
Terminal is electrically connected by connecting line and terminal box, and the single-phase transformers are internally provided with iron ring (10).
7. safe voltage transformer according to claim 6, it is characterised in that：It is provided on the iron ring (10)
Winding (11), monitoring winding (12), safe winding (13) are measured, the measurement winding (11) is for measuring turn on angle, the inspection
The real-time status that winding is used to detect overvoltage is surveyed, the safe winding (13) is used to carry out the safety monitoring of voltage transformer.
8. safe voltage transformer according to claim 1, it is characterised in that：The shell of the single-phase transformers
For insulator, and the totally-enclosed integrated molding of insulator, the mutual inductor internal components are fixed by screws in enclosure.
9. safe voltage transformer according to claim 7, it is characterised in that：It is electrically connected at safe winding
(13) there are one voltage detection module (15) and alarms (16) for side, and the voltage detection module (15) is for carrying out voltage
Detection, the alarm (16) are alarmed for carrying out circuit voltage overload.
10. safe voltage transformer according to claim 8, it is characterised in that：The insulator is asphalt mixtures modified by epoxy resin
One of which in fat, phenolic resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810419428.8A CN108447667A (en) | 2018-05-04 | 2018-05-04 | A kind of safe voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810419428.8A CN108447667A (en) | 2018-05-04 | 2018-05-04 | A kind of safe voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108447667A true CN108447667A (en) | 2018-08-24 |
Family
ID=63202914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810419428.8A Pending CN108447667A (en) | 2018-05-04 | 2018-05-04 | A kind of safe voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108447667A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB921217A (en) * | 1959-02-17 | 1963-03-20 | Gardy Particip App | Improvements in prefabricated cellular-type electric switch-gears |
| CN2817020Y (en) * | 2005-08-17 | 2006-09-13 | 大连北方互感器厂 | Outdoor dry type totally-enclosed anti-ferromagnetic resonance three-phase voltage transformer |
| CN103730246A (en) * | 2013-12-17 | 2014-04-16 | 安徽互感器有限公司 | 10KV potential transformer |
| CN203573811U (en) * | 2013-10-28 | 2014-04-30 | 大连北方互感器集团有限公司 | Outdoor three-phase split type combined transformer |
| CN107359037A (en) * | 2017-05-27 | 2017-11-17 | 安徽华能集团电器有限公司 | A kind of 10kv open airs combination voltage transformer |
| CN208385194U (en) * | 2018-05-04 | 2019-01-15 | 卓维电力科技有限公司 | A kind of highly-safe voltage transformer |
-
2018
- 2018-05-04 CN CN201810419428.8A patent/CN108447667A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB921217A (en) * | 1959-02-17 | 1963-03-20 | Gardy Particip App | Improvements in prefabricated cellular-type electric switch-gears |
| CN2817020Y (en) * | 2005-08-17 | 2006-09-13 | 大连北方互感器厂 | Outdoor dry type totally-enclosed anti-ferromagnetic resonance three-phase voltage transformer |
| CN203573811U (en) * | 2013-10-28 | 2014-04-30 | 大连北方互感器集团有限公司 | Outdoor three-phase split type combined transformer |
| CN103730246A (en) * | 2013-12-17 | 2014-04-16 | 安徽互感器有限公司 | 10KV potential transformer |
| CN107359037A (en) * | 2017-05-27 | 2017-11-17 | 安徽华能集团电器有限公司 | A kind of 10kv open airs combination voltage transformer |
| CN208385194U (en) * | 2018-05-04 | 2019-01-15 | 卓维电力科技有限公司 | A kind of highly-safe voltage transformer |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180824 |
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