CN201429633Y - Three-phase high-current generator for detecting current transformer on electric power line - Google Patents
Three-phase high-current generator for detecting current transformer on electric power line Download PDFInfo
- Publication number
- CN201429633Y CN201429633Y CN 200920041150 CN200920041150U CN201429633Y CN 201429633 Y CN201429633 Y CN 201429633Y CN 200920041150 CN200920041150 CN 200920041150 CN 200920041150 U CN200920041150 U CN 200920041150U CN 201429633 Y CN201429633 Y CN 201429633Y
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- circuit
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- phase
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- Expired - Fee Related
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- 238000000819 phase cycle Methods 0.000 claims abstract description 8
- 230000001105 regulatory effect Effects 0.000 claims description 27
- 230000009466 transformation Effects 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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Abstract
The utility model discloses a three-phase high-current generator for detecting a current transformer on an electric power line, and relates to a detector for the current transformer on the electric power line. The three-phase high-current generator comprises a voltage-regulating circuit and a current-boosting circuit which are connected in series, wherein the voltage-regulating circuit is formed by a voltage-regulating circuit I, a voltage-regulating circuit II and a voltage-regulating circuit III which are connected in parallel; the current-boosting circuit is formed by a current-boosting circuit I, a current-boosting circuit II and a current-boosting circuit III which are connected in parallel; the voltage-regulating circuit I, the voltage-regulating circuit II and the voltage-regulatingcircuit III are respectively connected with the current-boosting circuit I, the current-boosting circuit II and the current-boosting circuit III in series; and the current-boosting circuit I, the current-boosting circuit II and the current-boosting circuit III are respectively provided with an interface connected with the current transformer on a three-phase electric power line. The three-phase high-current generator can realize three-phase independent adjustment by three voltage-regulating and current-boosting circuits; and a phase-sequence correcting circuit can ensure the input of a three-phase positive-sequence power supply. The three-phase high-current generator can detect the selection correctness of secondary circuit transformation ratio of the current transformer and the wiring correctness of the current transformer.
Description
Technical field
The utility model relates to the pick-up unit of current transformer on a kind of power circuit.
Background technology
For obtaining the situation of power circuit operation, need the current transformer that link to each other with secondary device be set on power circuit, by the no-load voltage ratio setting, can know the operation conditions of measured point power circuit.In testing process, need strong current generator to be articulated in the two ends of current transformer, electric power signal detects the correctness that current transformer is installed in the analog line.What power circuit transmitted is three-phase electricity, and during detection, existing strong current generator can only send a phase electric power signal, that is to say to detect by relative three-phase line.Be difficult to guarantee by detecting mutually whether the polarity of current transformer installation is consistent; In addition, the correctness of transformation ratio selection also is difficult to judge.
The utility model content
The utility model is at the problems of the prior art, provide a kind of and can send the three-phase simulation electric power signal simultaneously, thereby can detect the three-phase strong current generator that is used to detect current transformer on the power circuit of three secondary loop of mutual inductor polarity correctness and transformation ratio selection correctness.
The technical solution of the utility model is: it comprises the regulating circuit and the up-flow circuit of mutual serial connection, regulating circuit is made of regulating circuit one, regulating circuit two and the regulating circuit three of parallel connection, the up-flow circuit is made of up-flow circuit one, up-flow circuit two and the up-flow circuit three of parallel connection, regulating circuit one, regulating circuit two and regulating circuit three are connected in series with up-flow circuit one, up-flow circuit two, up-flow circuit three respectively, are respectively equipped with the interface that is connected the current transformer on the three-phase power circuit on up-flow circuit one, up-flow circuit two and the up-flow circuit three.
It also is provided with the phase sequence correcting circuit, before the phase sequence correcting circuit is connected regulating circuit.
The utility model can realize that by three tunnel pressure regulation, up-flow circuit three-phase is independent adjustable; The phase sequence correcting circuit can be guaranteed the input of three-phase positive sequence power supply.Can check out the correctness of the correctness summation current transformer wiring of secondary loop of mutual inductor transformation ratio selection.
Description of drawings
Fig. 1 is a structure principle chart of the present utility model
Embodiment
The utility model as shown in Figure 1, it comprises the regulating circuit and the up-flow circuit of mutual serial connection, regulating circuit is made of regulating circuit one, regulating circuit two and the regulating circuit three of parallel connection, the up-flow circuit is made of up-flow circuit, up-flow circuit two and the up-flow circuit three of parallel connection, regulating circuit one, regulating circuit two and regulating circuit three are connected in series with up-flow circuit one, up-flow circuit two, up-flow circuit three respectively, are respectively equipped with the interface that is connected the current transformer on the three-phase power circuit on up-flow circuit one, up-flow circuit two and the up-flow circuit three.
It also is provided with the phase sequence correcting circuit, before the phase sequence correcting circuit is connected regulating circuit.
When the utility model uses, as shown in Figure 1, on the current transformer of the corresponding respectively connection power circuit of each up-flow circuit.
Claims (2)
1, be used to detect the three-phase strong current generator of current transformer on the power circuit, it is characterized in that, it comprises the regulating circuit and the up-flow circuit of mutual serial connection, regulating circuit is by the regulating circuit one of parallel connection, regulating circuit two and regulating circuit three constitute, the up-flow circuit is by the up-flow circuit one of parallel connection, up-flow circuit two and up-flow circuit three constitute, regulating circuit one, regulating circuit two and regulating circuit three respectively with up-flow circuit one, up-flow circuit two, up-flow circuit three serial connections, up-flow circuit one, be respectively equipped with the interface that is connected the current transformer on the three-phase power circuit on up-flow circuit two and the up-flow circuit three.
2, the three-phase strong current generator that is used to detect current transformer on the power circuit according to claim 1 is characterized in that it also is provided with the phase sequence correcting circuit, before the phase sequence correcting circuit is connected regulating circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920041150 CN201429633Y (en) | 2009-04-08 | 2009-04-08 | Three-phase high-current generator for detecting current transformer on electric power line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920041150 CN201429633Y (en) | 2009-04-08 | 2009-04-08 | Three-phase high-current generator for detecting current transformer on electric power line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201429633Y true CN201429633Y (en) | 2010-03-24 |
Family
ID=42033372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920041150 Expired - Fee Related CN201429633Y (en) | 2009-04-08 | 2009-04-08 | Three-phase high-current generator for detecting current transformer on electric power line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201429633Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990378A (en) * | 2017-05-15 | 2017-07-28 | 国家电网公司 | A kind of alternating current filter group current transformer device for detecting polarity and method |
-
2009
- 2009-04-08 CN CN 200920041150 patent/CN201429633Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990378A (en) * | 2017-05-15 | 2017-07-28 | 国家电网公司 | A kind of alternating current filter group current transformer device for detecting polarity and method |
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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: JIANGSU ELECTRIC POWER CO. STATE ELECTRIC NET CROP Effective date: 20121023 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121023 Address after: 225009 Weiyang Road, Jiangsu, China, No. 179, No. Patentee after: Yangzhou Power Supply Company of Jiangsu Electric Power Company Patentee after: Jiangsu Electric Power Company Patentee after: State Grid Corporation of China Address before: 225009 Weiyang Road, Jiangsu, China, No. 179, No. Patentee before: Yangzhou Power Supply Company of Jiangsu Electric Power Company |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100324 Termination date: 20180408 |