CN203732597U - Novel electronic voltage transformer - Google Patents
Novel electronic voltage transformer Download PDFInfo
- Publication number
- CN203732597U CN203732597U CN201320878119.XU CN201320878119U CN203732597U CN 203732597 U CN203732597 U CN 203732597U CN 201320878119 U CN201320878119 U CN 201320878119U CN 203732597 U CN203732597 U CN 203732597U
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- CN
- China
- Prior art keywords
- housing
- voltage transformer
- novel electronic
- disc insulator
- shielded joint
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a novel electronic voltage transformer which belongs to voltage transformers and is used for measuring voltage of a power transmission/transformation line of an electric power system. The novel electronic voltage transformer is mainly composed of the components of: a housing, basin type insulators, a central conductor, a capacitive screen, an outer shield, a shielded joint, a signal line and a wiring board. The basin-type insulators are arranged at two sides of the housing. The central conductor is arranged on the basin-type insulators at two sides. The capacitive screen is mounted on the housing. The outer shield is sleeved outside the capacitive screen and is mounted on the housing. The signal line is connected with the capacitive screen and the shielded joint. The shielded joint is mounted on the wiring board. The novel electronic voltage transformer overcomes the defects of easy saturation burnout, high cost, etc. in a traditional electromagnetic voltage transformer. The novel electronic voltage transformer has advantages of: simple structure, small volume, low cost and good engineering application prospect.
Description
(1) technical field
The utility model is a kind of new-style electronic voltage transformer (VT), belongs to a kind of voltage transformer (VT), is used for measuring electric system power transmission and transformation line voltage value size.
(2) background technology
At present, the conventional voltage mutual inductor that electric power system is used is all to adopt electromagnetic induction principle, the copper cash of reeling on magnetic conductivity core limb forms once, secondary coil, and turn ratio and voltage ratio are directly proportional to obtain voltage signal, and this type of voltage transformer (VT) exists the easily saturated situation of burning unshakable in one's determination.In addition, traditional mutual inductor adopts a large amount of ferrous metal and non-ferrous metal, and production cost is high, and core loss is large, wastes energy.
(3) summary of the invention
For shortcomings such as overcoming existing voltage transformer (VT) and easily saturatedly burn, production cost is high, core loss is large, the utility model provides a kind of novel a kind of new-style electronic voltage transformer (VT), this electronic type voltage transformer is arranged on center conductor on disc insulator, disc insulator is arranged on casing, capacitance plate, external shield, terminal block are arranged on casing, shielded joint is arranged on terminal block, and signal wire connects capacitance plate and shielded joint.
The principle that the utility model adopts is principle of capacitive divider.Center conductor and capacitance plate composition high-pressure side electric capacity, between capacitance plate and external shield, form low pressure end electric capacity, two electric capacity form capacitance partial pressure, and signal wire is connected on capacitance plate, voltage signal is transferred to shielded joint, and shielded joint is received external voltage measuring system.
A kind of new-style electronic voltage transformer (VT) of the utility model solves the technical scheme that its technical matters adopts: left side disc insulator is arranged on the housing of left side, right side disc insulator is arranged on housing both sides, right side, center conductor is installed on the disc insulator of both sides, capacitance plate is sleeved on center conductor outside, external shroud is contained in capacitance plate outside and is arranged on center housing again, signal wire connects capacitance plate and shielded joint, and shielded joint is arranged on terminal block.By the high-pressure side electric capacity of center conductor and capacitance plate composition, between capacitance plate and external shield, form low pressure end electric capacity, realize capacitance partial pressure, thereby obtain voltage signal.
The beneficial effects of the utility model are, iron-free magnetic saturation situation, and simple in structure, volume is little, and cost is low, has good future in engineering applications.
(4) brief description of the drawings
Fig. 1 is a kind of cross section view of new-style electronic voltage transformer (VT).
1. left side disc insulators in figure, 2. insulated left side sub-sealing-ring, 3. Self-sealing valve, 4. left side housing, 5. left side housing seal circle, 6. signal wire, 7. terminal block O-ring seal, 8. terminal block, 9. shielded joint, 10. lid, 11. right side housing seal circles, 12. right side housings, 13. side insulation right sub-sealing-rings, 14. right side disc insulators, 15. capacitance plates, 16. external shields, 17. middle casings, 18. center conductors, 19. contact bases.
(5) embodiment
Below in conjunction with accompanying drawing, processing assembling of the present utility model is described further.
In Fig. 1, left side disc insulator (1) is arranged on left side housing (4), left side disc insulator (1) forms sealing with left side housing (4) by insulated left side sub-sealing-ring (2), Self-sealing valve (3) is arranged on left side housing (4), left side housing (4) is installed on middle casing (17), left side housing (4) forms sealing with middle casing (17) by left side housing seal circle (5), contact base (19) is arranged on left side disc insulator (1), center conductor (18) right-hand member is arranged on right side disc insulator (14), center conductor (18) left end is inserted on contact base (19), capacitance plate (15) is sleeved on center conductor (18) outside, external shield (16) is sleeved on capacitance plate (15) outside, signal wire (6) lower end is connected to capacitance plate (15) outside surface, signal wire (6) upper end is connected on shielded joint (9), shielded joint (9) by resin-cast on terminal block (8), terminal block (8) is arranged on middle casing (17), terminal block (8) forms sealing with middle casing (17) by terminal block O-ring seal (7), lid (10) is connected on middle casing (17), right side housing (12) is installed on middle casing (17), right side housing (12) forms sealing with middle casing (17) by right side housing seal circle (11), right side disc insulator (14) is arranged on right side housing (12), right side disc insulator (14) forms sealing with right side housing (12) by insulated left side sub-sealing-ring (13), .
The utility model is by verification experimental verification, and every test figure meets national standard requirement, and successfully carries out engineering application at power transmission and transformation station, simple in structure, stable performance, and technical feature meets request for utilization.
Claims (1)
1. a new-style electronic voltage transformer (VT), by left side disc insulator, insulated left side sub-sealing-ring, Self-sealing valve, left side housing, left side housing seal circle, signal wire, terminal block O-ring seal, terminal block, shielded joint, lid, right side housing seal circle, right side housing, side insulation right sub-sealing-ring, right side disc insulator, capacitance plate, external shield, middle casing, center conductor, contact base composition, it is characterized in that: left side disc insulator and right side disc insulator are connected to left side housing and housing both sides, right side, center conductor is arranged on the disc insulator of right side, capacitance plate is sleeved on center conductor outside, external shroud is contained in capacitance plate outside and is arranged on center housing again, signal wire connects capacitance plate and shielded joint, shielded joint is arranged on terminal block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320878119.XU CN203732597U (en) | 2013-12-30 | 2013-12-30 | Novel electronic voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320878119.XU CN203732597U (en) | 2013-12-30 | 2013-12-30 | Novel electronic voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203732597U true CN203732597U (en) | 2014-07-23 |
Family
ID=51202659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320878119.XU Expired - Fee Related CN203732597U (en) | 2013-12-30 | 2013-12-30 | Novel electronic voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203732597U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111337727A (en) * | 2020-03-05 | 2020-06-26 | 山东泰开互感器有限公司 | Current transformer and cloud computing-based current transformer information interaction system |
-
2013
- 2013-12-30 CN CN201320878119.XU patent/CN203732597U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111337727A (en) * | 2020-03-05 | 2020-06-26 | 山东泰开互感器有限公司 | Current transformer and cloud computing-based current transformer information interaction system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20151230 |
|
| EXPY | Termination of patent right or utility model |