CN201663050U - Electronic combined transformer - Google Patents
Electronic combined transformer Download PDFInfo
- Publication number
- CN201663050U CN201663050U CN2010201765313U CN201020176531U CN201663050U CN 201663050 U CN201663050 U CN 201663050U CN 2010201765313 U CN2010201765313 U CN 2010201765313U CN 201020176531 U CN201020176531 U CN 201020176531U CN 201663050 U CN201663050 U CN 201663050U
- Authority
- CN
- China
- Prior art keywords
- voltage
- outlet terminal
- electronic combined
- primary high
- primary
- 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 - Lifetime
Links
Landscapes
- Transformers For Measuring Instruments (AREA)
Abstract
The utility model relates to an electronic combined transformer, which comprises a primary high-voltage fuse, a primary high-voltage outlet terminal, a secondary low-voltage outlet terminal, a primary conductor, a capacitive dividing ring, a secondary coil and epoxy resin, the primary high-voltage fuse is arranged on the upper part of the electronic combined transformer, the primary high-voltage outlet terminal is arranged on the left side of the electronic combined transformer, and the secondary low-voltage outlet terminal is arranged under the primary high-voltage outlet terminal, the epoxy resin is filled between the primary high-voltage fuse, the primary high-voltage outlet terminal, the secondary low-voltage outlet terminal, the primary conductor and the capacitive dividing ring, consequently, vital potential failure in the operation of an electric power system is fundamentally eliminated, and the safety of personnel and equipment is guaranteed to the max. The utility model has the advantages of high safety, low cost and quick return, and has practical significance for the upgrading and improvement of conventional medium-voltage and low-voltage electric equipment.
Description
Technical field
The utility model relates to a kind of Multifunction electronic combined mutual inductor; can finish electric current, voltage signal conversion and on-line monitoring simultaneously; refer more particularly in the digital intelligent comprehensive automation system of transformer substation and use; its output is the small voltage signal; performance is overstable; can be directly and instrument, protective relaying device interface, thus realize the electronic combined mutual inductor of metering, control, measurement, defencive function.
Background technology
Along with the develop rapidly of electronic technology, microcomputer type relay protection and electronic electricity meter have progressively occupied leading position, in relaying protection and measuring, and the energy stream and the separate from information flow of control section, thereby monitoring equipment no longer needs the instrument transformer of high power output.Simultaneously because the application of fast development, the integrated automation of transformation stations and the power distribution automation of power industry, therefore, it is extremely urgent to develop a kind of low energy consumption new transformer with measurement, protection and ability to communicate.Ad hoc meter the utility model.
Summary of the invention
The purpose of this utility model just provide a kind of brand-new, compact conformation, can be at the direct matching used multi-function electronic combination transformer of digital intelligent comprehensive automation system of transformer substation.The purpose of this utility model is achieved in that electronic combined mutual inductor, formed by a high-tension fuse, high-voltage terminal end, secondary low-voltage leading-out terminal, primary conductive body, capacitance partial pressure ring, secondary coil, an epoxy resin, it is characterized in that: a high-tension fuse is arranged on the top of electronic combined mutual inductor, a high-voltage terminal end is arranged on the left side of electronic combined mutual inductor, and the secondary low-voltage leading-out terminal is arranged on the below of a high-voltage terminal end; The primary conductive body is arranged on the right side of electronic combined mutual inductor, described secondary coil is wound on the capacitance partial pressure ring, all adopts the epoxy resin filling between high-tension fuse, high-voltage terminal end, secondary low-voltage leading-out terminal, primary conductive body, capacitance partial pressure ring.
The utility model installation dimension is consistent with electromagnetic transformer with original mid-cabinet, installs and uses simple and conveniently, and operation need not safeguarded.In light weight, precision is high, good linearity, measuring range are wide, shortcoming such as the frequency band that has overcome traditional electromagnetic transformer is narrow, low-response.Can not produce high voltage during transformer current part second open circuit, the instrument transformer voltage segment does not have resonance phenomena, has fundamentally eliminated the significant trouble hidden danger in the power system operation, has farthest ensured the safety of personnel and equipment.Safe, the not danger such as inflammable, explosive that produces because of trapped fuel.Cost is low, instant effect, in existing, the transformation and the raising of low voltage electrical equipment have realistic meaning.All signals transmit by the multiple twin shielding conductor, help strengthening the ability of anti-electromagnetic interference.Cost is low, and instant effect has realistic meaning to the transformation of existing transformer station electric equipment and the construction of raising and digital intelligent transformer station.All signals transmit by the multiple twin shielding conductor, help strengthening the ability of anti-electromagnetic interference.
Description of drawings:
Fig. 1 is a structural representation of the present utility model
1, high-tension fuse 2, high-voltage terminal end 3, secondary low-voltage leading-out terminal 4, primary conductive body 5, capacitance partial pressure ring 6, secondary coil 7, epoxy resin
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing
Electronic combined mutual inductor, formed by a high-tension fuse, high-voltage terminal end, secondary low-voltage leading-out terminal, primary conductive body, capacitance partial pressure ring, secondary coil, an epoxy resin, it is characterized in that: a high-tension fuse is arranged on the top of electronic combined mutual inductor, a high-voltage terminal end is arranged on the left side of electronic combined mutual inductor, and the secondary low-voltage leading-out terminal is arranged on the below of a high-voltage terminal end; The primary conductive body is arranged on the right side of electronic combined mutual inductor, described secondary coil is wound on the capacitance partial pressure ring, all adopts the epoxy resin filling between high-tension fuse, high-voltage terminal end, secondary low-voltage leading-out terminal, primary conductive body, capacitance partial pressure ring.During concrete enforcement, the coil in the electronic combined mutual inductor be with lead equably on the non-ferromagnetic annular skeleton, one time bus places coil central authorities, so the current potential between winding coil and the bus is isolated.So owing to do not exist iron core not have saturated phenomenon.If bus current is I (t),
According to Faraday's electromagnetic induction law, the induced potential e (t) that Rogowski (Rogowski) coil two ends produce:
E (t)=-Mdi/dt M---coefficient of mutual inductance wherein
The induced potential e (t) that Rogowski coil two ends produce obtains and the proportional voltage signal of bus current after handling through integrator, pass through the processing, conversion of other link then after, can obtain and the proportional analog quantity output of primary current.
Secondary is measured the level winding and is adopted the little iron-core coil principle of low energy consumption to be made, and second protection level winding adopts little iron-core coil principle of low energy consumption or Rogowski (Rogowski) coil principle to be made.The electronic mutual inductor voltage segment adopts the design principle of inductance dividing potential drop.
Adopt the electronic mutual inductor that above principle produces can be directly and instrument, protective relaying device interface, directly supporting with intermediate switchgear cabinet.Thereby realize the function of metering, control, measurement, protection and on-line monitoring.
Claims (1)
1. electronic combined mutual inductor, formed by a high-tension fuse, high-voltage terminal end, secondary low-voltage leading-out terminal, primary conductive body, capacitance partial pressure ring, secondary coil, an epoxy resin, it is characterized in that: a high-tension fuse is arranged on the top of electronic combined mutual inductor, a high-voltage terminal end is arranged on the left side of electronic combined mutual inductor, and the secondary low-voltage leading-out terminal is arranged on the below of a high-voltage terminal end; The primary conductive body is arranged on the right side of electronic combined mutual inductor, described secondary coil is wound on the capacitance partial pressure ring, all adopts the epoxy resin filling between high-tension fuse, high-voltage terminal end, secondary low-voltage leading-out terminal, primary conductive body, capacitance partial pressure ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201765313U CN201663050U (en) | 2010-04-19 | 2010-04-19 | Electronic combined transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201765313U CN201663050U (en) | 2010-04-19 | 2010-04-19 | Electronic combined transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201663050U true CN201663050U (en) | 2010-12-01 |
Family
ID=43233470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201765313U Expired - Lifetime CN201663050U (en) | 2010-04-19 | 2010-04-19 | Electronic combined transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201663050U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813720A (en) * | 2010-04-19 | 2010-08-25 | 熊江咏 | Electronic combined mutual inductor |
| CN103208360A (en) * | 2013-03-21 | 2013-07-17 | 许继集团有限公司 | Electronic-type current-voltage-combined transformer for GIS (gas insulated switchgear) |
| CN106373720A (en) * | 2016-11-07 | 2017-02-01 | 湖南大北互互感器有限公司 | Intermediate transformer of capacitor voltage transformer electromagnetic unit |
| CN115825527A (en) * | 2022-12-12 | 2023-03-21 | 江苏靖江互感器股份有限公司 | LC compatible voltage sensor |
-
2010
- 2010-04-19 CN CN2010201765313U patent/CN201663050U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813720A (en) * | 2010-04-19 | 2010-08-25 | 熊江咏 | Electronic combined mutual inductor |
| CN101813720B (en) * | 2010-04-19 | 2011-12-14 | 熊江咏 | Electronic combined mutual inductor |
| CN103208360A (en) * | 2013-03-21 | 2013-07-17 | 许继集团有限公司 | Electronic-type current-voltage-combined transformer for GIS (gas insulated switchgear) |
| CN103208360B (en) * | 2013-03-21 | 2016-04-20 | 许继集团有限公司 | A kind of GIS electronic current-voltage combination transformer |
| CN106373720A (en) * | 2016-11-07 | 2017-02-01 | 湖南大北互互感器有限公司 | Intermediate transformer of capacitor voltage transformer electromagnetic unit |
| CN106373720B (en) * | 2016-11-07 | 2018-06-01 | 湖南大北互互感器有限公司 | A kind of intermediate transformer of capacitance type potential transformer electromagnetic unit |
| CN115825527A (en) * | 2022-12-12 | 2023-03-21 | 江苏靖江互感器股份有限公司 | LC compatible voltage sensor |
| CN115825527B (en) * | 2022-12-12 | 2023-11-21 | 江苏靖江互感器股份有限公司 | LC compatible voltage sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103558440B (en) | A kind of intelligent electronic type voltage transformer | |
| CN201514851U (en) | Outdoor self-excited source three-phase combined electronic transducer metering device | |
| CN202258772U (en) | Epoxy pouring totally-closed support type electronic combined transformer for centrally installed switchgear | |
| CN106771469A (en) | Controller switching equipment merges three-phase intelligent Current Voltage integration transformers with one or two times | |
| CN201663050U (en) | Electronic combined transformer | |
| CN101770855B (en) | Electronic combined transformer for digitalized power station | |
| CN101813720B (en) | Electronic combined mutual inductor | |
| CN203070913U (en) | High-voltage line current transformer | |
| CN206906454U (en) | One or two fusion three-phase intelligent Current Voltage integration transformers of controller switching equipment | |
| CN202084424U (en) | Electronic type low-voltage combined transformer | |
| CN203324357U (en) | Electronic voltage transformer used for detecting high voltage resistor current | |
| CN203013493U (en) | Electronic voltage transformer for high-voltage cubicle type gas insulated switchgear | |
| CN202307496U (en) | Electronic high-voltage current transformer | |
| CN201117422Y (en) | Electronic type current mutual inductor for central cabinet | |
| CN201332012Y (en) | Electronic type combined transformer for digital transformer substation | |
| CN201716359U (en) | Non-contact electronic type voltage sampling device | |
| CN201689779U (en) | Electronic current transformer | |
| CN105826000B (en) | A kind of intelligence gas-filling cabinet punching electronic current mutual inductor | |
| CN201117420Y (en) | Electronic voltage mutual inductor | |
| CN201084540Y (en) | An electronic current transformer applicable to a mid-positioned cabinet | |
| CN202307493U (en) | Electronic type current transformer | |
| CN103545102A (en) | Outdoor integral intelligent combined transformer | |
| CN201332016Y (en) | Electronic type current transformer for digital transformer substation | |
| CN202189673U (en) | Electromagnetism-electron mixing current transformer | |
| CN101819869A (en) | Electronic current transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101201 Effective date of abandoning: 20111214 |