CN202585045U - Electrical transformer with voltage measurement and protection function - Google Patents
Electrical transformer with voltage measurement and protection function Download PDFInfo
- Publication number
- CN202585045U CN202585045U CN 201220206419 CN201220206419U CN202585045U CN 202585045 U CN202585045 U CN 202585045U CN 201220206419 CN201220206419 CN 201220206419 CN 201220206419 U CN201220206419 U CN 201220206419U CN 202585045 U CN202585045 U CN 202585045U
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- pressure winding
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Abstract
The unity model belongs to the field of high-voltage electrical apparatus, in particular relates to an electrical transformer with voltage measurement and protection functions. The electrical transformer with the voltage measurement and protection functions mainly comprises a high-voltage sleeve pipe, a shell, a high-voltage winding, a low-voltage winding for electric energy transmission, a low-voltage winding for measurement, a low-voltage winding for protection, an iron core, a low-voltage sleeve pipe and an insulating medium, wherein the three low-voltage windings are wound as prescribed, the insides of the low-voltage windings and the low-voltage windings are isolated by using insulating materials, and the low-voltage windings are respectively arranged on a same core column of the iron core and can independently work; the low-voltage windings are connected to an electricity transmission and distribution power network, a measuring instrument and a relay protection device through the low-voltage sleeve pipe; and the iron core is shielded from the windings through metal shielding parts. The electrical transformer disclosed by the utility model integrates electric energy transmission, voltage measurement and protection functions into a whole, changes the condition of originally together completing the functions by the electrical transformer and a voltage transformer, thereby effectively reducing the occupying area of products and saving the cost.
Description
Technical field
The utility model belongs to the High-Voltage Electrical Appliances field, in electric power system, has a kind of power transformer of electric energy transmitting, voltage measurement and defencive function.
Background technology
At present in electric power system, need power transformer and cooperatively interacting of two kinds of power equipments of voltage transformer could accomplish electric energy transmitting, voltage measurement and defencive function.Power transformer is by electromagnetic induction, and with identical frequency, conversion exchanges a kind of static electric equipment of voltage or electric current between two or more windings, only accomplishes the function of electric energy transmitting.Voltage transformer is that high-tension information is delivered to the measuring instrument of low-voltage secondary side and a kind of special transformer of relaying protection, and voltage measurement and protective effect are arranged.
Summary of the invention
In order to solve the existing technical problem of power transformer in the above-mentioned electric power system, the utility model provides the power transformer of a kind of measurement with voltage and defencive function.
The power transformer of a kind of measurement with voltage of the utility model and defencive function mainly is made up of with low pressure winding, iron core, low-tension bushing and dielectric with low pressure winding, protection with low pressure winding, measurement bushing, housing, high pressure winding, electric energy transmitting.Described electric energy transmitting is carried out coiling with the low pressure winding by regulation with low pressure winding and protection with low pressure winding, measurement; Isolate with insulating material between winding inside and the winding; Place the same stem stem of iron core respectively and can work independently, be connected to power transmission and distribution electrical network, measuring instrument and protective relaying device through low-tension bushing or low-voltage wiring terminal.Described high pressure winding is in the outside of low pressure winding, and common and low pressure winding is a coaxial configuration, and the needs according to insulation leave enough insulation distances between low pressure winding and the high pressure winding.The outlet of described high pressure winding inserts high-voltage fence through bushing.Shield by metal screen between described iron core and the winding, described iron core and winding synthesizer body, the device body is protected by housing, and inside is filled with dielectric.The power transformer of described a kind of measurement with voltage and defencive function is an all-sealed structure, effectively guarantees reliability of operation.
The power transformer of a kind of measurement with voltage of the utility model and defencive function; Possessed electric energy transmitting, voltage measurement and defencive function simultaneously; In electric power system, only need to install power transformer, simplified system, saving cost have reduced floor space effectively.
Description of drawings
Fig. 1 is the electrical schematic diagram of the utility model;
Fig. 2 is the structural representation of the utility model.
Embodiment
Like Fig. 1 and shown in Figure 2; The measurement a kind of with voltage that the utility model provides and the power transformer of defencive function mainly are made up of with low pressure winding 6, iron core 7, low-tension bushing 8 and dielectric 9 with low pressure winding 5, protection with low pressure winding 4, measurement bushing 1, housing 2, high pressure winding 3, electric energy transmitting.Described electric energy transmitting is carried out coiling with low pressure winding 6 by regulation with low pressure winding 5 and protection with low pressure winding 4, measurement; Isolate with insulating material between winding inside and the winding; Place the same stem stem of iron core 7 respectively and can work independently, be connected to power transmission and distribution electrical network, measuring instrument and protective relaying device through low-tension bushing 8.Described high pressure winding 3 is in the outside of low pressure winding 4,5,6, is coaxial configuration with low pressure winding 4,5,6 usually, according to the needs that insulate, described high pressure winding 3 and low pressure winding 4,5, leaves enough insulation distances between 6.The outlet of described high pressure winding 3 inserts high-voltage fence through bushing 1.Shield by metal screen between described iron core 7 and the winding, described iron core 7 and winding synthesizer body, the device body is by housing 2 protections, and inside is filled with dielectric 9.The power transformer of described a kind of measurement with voltage and defencive function is an all-sealed structure, effectively guarantees reliability of operation.
Under the situation of power transformer operate as normal, the transmission capacity of transformer changes fluctuation within the specific limits.When transmission capacity is not more than a certain set point, measure with low pressure winding 5 and protection with low pressure winding 6 ability operate as normal in prescribed limit, can offer the effective signal of measuring instrument and protective relaying device.Otherwise,, measure with low pressure winding 5 and just effective signal can not be provided with low pressure winding 6 with protecting when transmission capacity during greater than a certain set point.
Claims (2)
1. the power transformer of measurement with voltage and defencive function; Mainly form with low pressure winding, iron core, low-tension bushing and dielectric with low pressure winding, protection with low pressure winding, measurement by bushing, housing, high pressure winding, electric energy transmitting; It is characterized in that: described electric energy transmitting is carried out coiling with the low pressure winding by regulation with low pressure winding and protection with low pressure winding, measurement; Isolate with insulating material between winding inside and the winding, place the same stem stem of iron core respectively and can work independently, be connected to power transmission and distribution electrical network, measuring instrument and protective relaying device through low-tension bushing or low-voltage wiring terminal; Described high pressure winding is in the outside of low pressure winding; Common and low pressure winding is a coaxial configuration, and the needs according to insulation leave enough insulation distances between low pressure winding and the high pressure winding.
2. the power transformer of a kind of measurement with voltage according to claim 1 and defencive function; It is characterized in that: shield by metal screen between described iron core and the winding; Described iron core and winding synthesizer body, the device body is protected by housing, and inside is filled with dielectric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220206419 CN202585045U (en) | 2012-05-09 | 2012-05-09 | Electrical transformer with voltage measurement and protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220206419 CN202585045U (en) | 2012-05-09 | 2012-05-09 | Electrical transformer with voltage measurement and protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202585045U true CN202585045U (en) | 2012-12-05 |
Family
ID=47254432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220206419 Expired - Fee Related CN202585045U (en) | 2012-05-09 | 2012-05-09 | Electrical transformer with voltage measurement and protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202585045U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102903503A (en) * | 2012-09-21 | 2013-01-30 | 沈阳全密封变压器股份有限公司 | Concentric type voltage transformer |
| CN105374536A (en) * | 2015-12-09 | 2016-03-02 | 日新（无锡）机电有限公司 | Combined power supply type voltage transformer |
-
2012
- 2012-05-09 CN CN 201220206419 patent/CN202585045U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102903503A (en) * | 2012-09-21 | 2013-01-30 | 沈阳全密封变压器股份有限公司 | Concentric type voltage transformer |
| CN105374536A (en) * | 2015-12-09 | 2016-03-02 | 日新（无锡）机电有限公司 | Combined power supply type voltage transformer |
| CN105374536B (en) * | 2015-12-09 | 2017-09-29 | 日新（无锡）机电有限公司 | Modular power supply type voltage transformer |
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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: 20121205 Termination date: 20190509 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |