CN2684350Y - A dry type voltage current combined transformer - Google Patents
A dry type voltage current combined transformer Download PDFInfo
- Publication number
- CN2684350Y CN2684350Y CN 200420043272 CN200420043272U CN2684350Y CN 2684350 Y CN2684350 Y CN 2684350Y CN 200420043272 CN200420043272 CN 200420043272 CN 200420043272 U CN200420043272 U CN 200420043272U CN 2684350 Y CN2684350 Y CN 2684350Y
- Authority
- CN
- China
- Prior art keywords
- voltage
- terminal
- electric current
- current
- binding post
- 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
Images
Landscapes
- Transformers For Measuring Instruments (AREA)
Abstract
The utility model relates to an outdoor epoxy insulating dry type voltage current combined transformer for metering high voltage electric energy on 10KV lines. The outdoor epoxy insulating dry type voltage current combined transformer comprises a voltage mutual inductance element (PT), a current mutual inductance element (CT), a soleplate (10), a voltage high voltage binding post (B), a current high voltage binding post (P2) and a voltage and current sharing high voltage binding post (P1A). The voltage mutual inductance element (PT), the current mutual inductance element (CT), the voltage high voltage binding post (B), the current high voltage binding post (P2) and the voltage and current sharing high voltage binding post (P1A) are poured by epoxy resin to form an integral body. The voltage and current sharing high voltage binding post (P1A) is formed by combining one voltage primary terminal of the voltage primary terminals (6) of the voltage mutual inductance element (PT) and one current primary terminal of the current primary terminals (4) of the current mutual inductance element (CT). The voltage high voltage binding post (B) is formed by another terminal of the voltage primary terminal (6), and the current high voltage binding post (P2) is formed by another terminal of the current primary terminal (4). The outdoor epoxy insulating dry type voltage current combined transformer has simple wiring, convenient repair and use, high accuracy and miniaturization.
Description
Technical field
The utility model relates to a kind of dry-type voltage currents combination instrument transformer, especially a kind of outdoor type be used for the current combined instrument transformer of epoxy insulation dry-type voltage that the 10KV circuit is made the high-pressure side electric energy metrical.
Background technology
Be used for the mutual inductance device that the 10KV high-voltage power metering is used at present, its structure is by independently two single-phase potential transformers and two monophase current instrument transformers place casing altogether, voltage transformer adopts the V-type wiring in the casing, current transformer adopts incomplete Y-connection, casing top high voltage porcelain bushing pipe is drawn high-voltage terminal and is formed, this voltage transformer, current transformer composite set also claim High-voltage measuring box, and its advantage is to make simply, is easy to combination; Shortcoming is that the device assembling device is too much, totally 4 instrument transformers, and the position that takes up room is big, and the wiring complexity is contained in the chest again, draws high-voltage terminal by sleeve pipe on the casing, and inconvenience etc. is used in maintenance.
Summary of the invention
Technical problem to be solved in the utility model provides and a kind ofly is applicable to what high-voltage power metering was used, and wiring is simple, keep in repair easy to use, the epoxy resins insulation dry-type voltage currents combination instrument transformer of high accuracy and miniaturization.
The technical scheme in the invention for solving the technical problem is: a kind of dry-type voltage currents combination instrument transformer comprises mutual induction of voltage element, electric current mutual-inductance element, voltage high tension terminal, electric current high tension terminal, electric current and voltage common high voltage binding post, base plate; Described mutual induction of voltage element, electric current mutual-inductance element, voltage high tension terminal, electric current high tension terminal and electric current and voltage common high voltage binding post are integral with poured with epoxy resin; To be one of terminal of voltage by the mutual induction of voltage element with one of terminal of electric current of electric current mutual-inductance element combine described electric current and voltage common high voltage binding post constitutes; Described voltage high tension terminal is made of another terminal of a terminal of voltage; Described electric current high tension terminal is made of another terminal of a terminal of electric current.
The secondary winding of described electric current mutual-inductance element has tap.
During use, the dry-type voltage currents combination instrument transformer of two playscript with stage directions utility models is put together, and two mutual induction of voltage elements are adopted the V-type wiring, and two electric current mutual-inductance elements adopt incomplete Y-connection just can realize three-phase electric energy metering in the high-pressure side.
The beneficial effects of the utility model:
1. utility model is structurally poured into an integrated entity by a single-phase voltage mutual-inductance element and the outer epoxy resin of monophase current mutual-inductance element user, is contained on the base plate.During use, only need two playscript with stage directions utility model products, just can carry out the metering of three-phase high-voltage electric energy.Reduced independent instrument transformer platform number, compact conformation, the position that takes up room is little, adopts the totally-enclosed insulation of outdoor resin, has saved the installation chest,
2. electric current and voltage common high voltage binding post of the present utility model is that the terminal of a voltage by the mutual induction of voltage element combines with terminal of an electric current of electric current mutual-inductance element and constitutes, saved the binding post of a terminal, reduce volume, improved precision.
3. the utility model electric current mutual-inductance element secondary winding has tap, can obtain different current ratios, and changing-over during for user's increase-volume is keeped in repair easy to use.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 makes the electrical schematic diagram of single-phase loop high pressure measurement time spent for the utility model;
Fig. 3 is the electrical schematic diagram that two playscript with stage directions utility models are done the three-phase ABC loop high pressure measurement time spent.
Among the figure, PT-mutual induction of voltage element, CT-electric current mutual-inductance element, P2-electric current high tension terminal, terminal of 4-electric current, P1A-electric current and voltage common high voltage binding post, terminal of 6-voltage, B-voltage high tension terminal, 8-voltage secondary terminal, 9-electric current secondary terminal, 10-base plate, S2-tap, HY-lightning arrester.
Specific embodiment
Below in conjunction with drawings and Examples explanation the utility model.
As shown in Figure 1, a kind of dry-type voltage currents combination instrument transformer comprises mutual induction of voltage element PT, electric current mutual-inductance element CT, voltage high tension terminal B, electric current high tension terminal P2, electric current and voltage common high voltage binding post P1A, base plate 10; Described mutual induction of voltage element PT comprises terminal 6 of voltage, voltage secondary terminal 8; Described electric current mutual-inductance element CT comprises terminal 4 of electric current, electric current secondary terminal 9;
Described mutual induction of voltage element PT, electric current mutual-inductance element CT, electric current and voltage common high voltage binding post P1A, voltage high tension terminal B and electric current high tension terminal P2 are integral with poured with epoxy resin, totally enclosed type, guaranteed insulating requirements, reduced volume, improved precision, need not be installed in the case.
To be one of terminal 6 of voltage by mutual induction of voltage element PT with one of terminal 4 of electric current of electric current mutual-inductance element CT combine described electric current and voltage common high voltage binding post P1A constitutes; Described voltage high tension terminal B is made of another terminal of a terminal 6 of voltage; Described electric current high tension terminal P2 is made of another terminal of a terminal 4 of electric current;
Described voltage secondary terminal 8, electric current secondary terminal 9 place epoxy casting body side surface bottom, and wherein voltage secondary terminal 8 has two a, b, and electric current secondary terminal has three S1, S2, S3.
Described electric current secondary terminal 9 has tap S2, can obtain different current ratios, and changing-over during for user's increase-volume reaches the precision height, keeps in repair easy to use.
As shown in Figure 2, a kind of electrical schematic diagram of dry-type voltage currents combination instrument transformer, its wiring characteristics: one of terminal of electric current of one of terminal of voltage of (1) mutual induction of voltage element PT and electric current mutual-inductance element CT constitutes electric current and voltage common high voltage binding post P1A; (2) two of electric current mutual-inductance element CT primary current high tension terminal P1A, P2 seal in the current circuit; (3) two of mutual induction of voltage element PT primary voltage high tension terminal P1A, B cross-over connection are on voltage between lines; So realize high side voltage, electric current and electric energy measurement as long as three high tension terminals can insert electrical network; (4) S2 in the secondary current terminal of electric current mutual-inductance element CT, changing-over is provided with during for increase-volume.
As shown in Figure 3, the dry-type voltage currents combination instrument transformer of two playscript with stage directions utility models, an electric current mutual-inductance element is that CT1, mutual induction of voltage element are PT1, another electric current mutual-inductance element is CT2, the mutual induction of voltage element is PT2, as the 10KV power distribution network high pressure measurement time spent, two mutual induction of voltage element PT1, PT2 do the V-type wiring, and two current transformer CT1, CT2 do incomplete Y-connection.Before advancing three-phase circuit, should add lightning arrester HY during use.When realizing Fig. 3 mode of connection, the A of the combination transformer of first playscript with stage directions utility model connects the A phase on the three-phase circuit, and B connects the B phase on the three-phase circuit; The A of the mutual inductance device of second playscript with stage directions utility model connects the C phase on the three-phase circuit, and the B that B still connects on the three-phase circuit gets final product mutually.
The utility model is to adopt the totally-enclosed insulation of outdoor epoxy resin, is applicable to that rated power is 50Hz, and rated voltage is that electric energy metrical usefulness is made in 10KV and following electric power system.
Claims (2)
1. a dry-type voltage currents combination instrument transformer comprises mutual induction of voltage element (PT), electric current mutual-inductance element (CT), base plate (10); It is characterized in that: it also comprises voltage high tension terminal (B), electric current high tension terminal (P2) and electric current and voltage common high voltage binding post (P1A); Described mutual induction of voltage element (PT), electric current mutual-inductance element (CT), voltage high tension terminal (B), electric current high tension terminal (P2) and electric current and voltage common high voltage binding post (P1A) are integral with poured with epoxy resin; Described electric current and voltage common high voltage binding post (P1A) is one of terminal of voltage (6) by mutual induction of voltage element (PT) and an one of terminal of electric current (4) of electric current mutual-inductance element (CT) formation that combines; Described voltage high tension terminal (B) is made of another terminal of a terminal of voltage (6); Described electric current high tension terminal (P2) is made of another terminal of a terminal of electric current (4).
2. dry-type voltage currents combination instrument transformer according to claim 1 is characterized in that: described electric current secondary terminal (9) has tap (S2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420043272 CN2684350Y (en) | 2004-03-09 | 2004-03-09 | A dry type voltage current combined transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420043272 CN2684350Y (en) | 2004-03-09 | 2004-03-09 | A dry type voltage current combined transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2684350Y true CN2684350Y (en) | 2005-03-09 |
Family
ID=34607986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420043272 Expired - Lifetime CN2684350Y (en) | 2004-03-09 | 2004-03-09 | A dry type voltage current combined transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2684350Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104950150A (en) * | 2015-07-03 | 2015-09-30 | 朗亿德电气股份有限公司 | Integrated sensor of high-voltage electric energy meter |
| CN107192974A (en) * | 2017-07-19 | 2017-09-22 | 云南电网有限责任公司电力科学研究院 | Integration voltage current standard transformer |
-
2004
- 2004-03-09 CN CN 200420043272 patent/CN2684350Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104950150A (en) * | 2015-07-03 | 2015-09-30 | 朗亿德电气股份有限公司 | Integrated sensor of high-voltage electric energy meter |
| CN107192974A (en) * | 2017-07-19 | 2017-09-22 | 云南电网有限责任公司电力科学研究院 | Integration voltage current standard transformer |
| CN107192974B (en) * | 2017-07-19 | 2023-06-09 | 云南电网有限责任公司电力科学研究院 | Integrated voltage and current standard transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206460865U (en) | A kind of Integral three-phase current transformer | |
| CN2684350Y (en) | A dry type voltage current combined transformer | |
| CN2645196Y (en) | Iron core current-limiting reactor | |
| CN201036161Y (en) | Three-phase pouring type combined transformer | |
| CN201336218Y (en) | Voltage-current combined type transformer for high pressure measurement | |
| CN209133329U (en) | A kind of high-power multiphase common mode inductance of high current | |
| CN209461276U (en) | A kind of non-closed iron core voltage transformer | |
| CN203799852U (en) | Indoor voltage transformer | |
| CN207165408U (en) | Large Copacity power type voltage transformer | |
| CN2620360Y (en) | Oil paper standing upside down type high-voltage current transformer | |
| CN2754195Y (en) | Outdoor high-voltage combined mutual inductor | |
| CN209692629U (en) | A kind of arragement construction of extra-high voltage large capacity flexible direct current converter station starting-up later time | |
| CN2929927Y (en) | Transformer integrated outdoor dry type totally-enclosed three-phase current transformer | |
| CN210489347U (en) | Three-phase outdoor combined mutual inductor metering device | |
| CN201252003Y (en) | Three-phase combined mutual inductor special for outdoor transformer districts | |
| CN200972825Y (en) | Combined mutual inductor | |
| CN201332013Y (en) | Combined outdoor voltage transformer | |
| CN206789962U (en) | A kind of integrated loaded capacity regulating voltage regulating power distribution station | |
| CN2622824Y (en) | Dry current transformer | |
| CN204558235U (en) | A kind of resistance mode of resonance voltage transformer | |
| CN2244247Y (en) | Resonance eliminating and anti-earthing voltage mutural inductor | |
| CN210015777U (en) | Totally-enclosed strut type voltage transformer | |
| CN202332565U (en) | Combined mutual inductor | |
| CN2684351Y (en) | Indoor dry three-phase combined current transformer | |
| CN201285700Y (en) | Combined transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ABB T + D TECHNOLOGY LTD. Free format text: FORMER OWNER: GUANGDONG SIHUI INSTRUMENT TRANSFORMER WORKS CO., LTD. Effective date: 20110920 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20110920 Address after: Zurich Patentee after: ABB T & D Technology Ltd. Address before: 526200 No. 8 Narcissus Road, Sihui City, Guangdong, Dongcheng District Patentee before: Guangdong Sihui Instrument Transformer Works Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140309 Granted publication date: 20050309 |