CN104821546A - Protector circuit - Google Patents
Protector circuit Download PDFInfo
- Publication number
- CN104821546A CN104821546A CN201510269093.2A CN201510269093A CN104821546A CN 104821546 A CN104821546 A CN 104821546A CN 201510269093 A CN201510269093 A CN 201510269093A CN 104821546 A CN104821546 A CN 104821546A
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- China
- Prior art keywords
- circuit
- protector
- measuring unit
- winding
- protected location
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- 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.)
- Withdrawn
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
A protector circuit relates to the technical field of a power transmission and distribution switchgear. The protector circuit is characterized in that the protector circuit comprises an open circuit protector, a measuring unit winding circuit and a protection unit winding circuit, wherein the measuring unit winding circuit and the protection unit winding circuit are connected with the open circuit protector. The protector circuit has the advantages of being simple in structure, convenient to operate and capable of effectively carrying out checking and maintenance on the lines effectively and the like.
Description
Technical field
The present invention relates to electrical power distribution switchgear technical field, be specifically related to a kind of protector circuit.
Background technology
Increasingly mature along with electric automatization; various protection type components and parts emerge in an endless stream; in electric power system, current transformer plays and big current is reduced into small area analysis carries out protecting, measuring; if but equipment long-play; or Current Transformer Secondary side open circuit will cause secondary side voltage to raise in transport; badly influence protection, even injure personal safety as well as the property safety.In nowadays existing product, CT open-circuit protector has dumb; if single phasing protection loop current is opened a way; this protector can be got through by piezo-resistance and connect with the earth; instrument transformer secondary side is made to form loop; but shielded by the defencive function of this phase, the protection measure and control unit be connected with this does not have effect yet simultaneously.
Summary of the invention
The object of this invention is to provide a kind of protector circuit, it is simple that it has structure, easy to operate, can effectively inquire about circuit and the feature such as maintenance.
In order to solve the problem existing for background technology; the present invention is by the following technical solutions: it comprises open-circuit protector, measuring unit winding circuit, protected location winding circuit, and measuring unit winding circuit is connected with open-circuit protector respectively with protected location winding circuit.
Described measuring unit winding circuit comprises three windings and measuring unit, three winding parallels, and three windings are connected with measuring unit respectively.
Described protected location winding circuit comprises three windings and protected location, three winding parallels, and three windings are connected with protected location respectively.
Described open-circuit protector comprises intelligent monitor, piezo-resistance, intelligent monitor has six delivery outlets, and be connected with six windings of protected location winding circuit with measuring unit winding circuit respectively, piezo-resistance is connected with intelligent monitor.
The advantage that the present invention has:
There is intelligent selection protection type or measurement type, if the input string measuring level can make protective loop normally work as protective loop according to the polarity of input analog amount by protected level open circuit intelligent monitor automatically, prevent unnecessary electric misoperation, and shielding failure; Send again switching value alarm signal, tell this instrument transformer of backstage concrete corresponding winding open circuit, convenient inquiry and maintenance, make it to fix a breakdown rapidly simultaneously.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention.
Embodiment
With reference to Fig. 1, it comprises open-circuit protector, measuring unit winding circuit, protected location winding circuit, and measuring unit winding circuit is connected with open-circuit protector respectively with protected location winding circuit.
Described measuring unit winding circuit comprises three windings and measuring unit, three winding parallels, and three windings are connected with measuring unit respectively.
Described protected location winding circuit comprises three windings and protected location, three winding parallels, and three windings are connected with protected location respectively.
Described open-circuit protector comprises intelligent monitor, piezo-resistance, intelligent monitor has six delivery outlets, and be connected with six windings of protected location winding circuit with measuring unit winding circuit respectively, piezo-resistance is connected with intelligent monitor.
Claims (4)
1. a protector circuit, it is characterized in that it comprises open-circuit protector, measuring unit winding circuit, protected location winding circuit, measuring unit winding circuit is connected with open-circuit protector respectively with protected location winding circuit.
2. a kind of protector circuit according to claim 1, it is characterized in that described measuring unit winding circuit comprises three windings and measuring unit, three winding parallels, three windings are connected with measuring unit respectively.
3. a kind of protector circuit according to claim 1, it is characterized in that described protected location winding circuit comprises three windings and protected location, three winding parallels, three windings are connected with protected location respectively.
4. a kind of protector circuit according to claim 1; it is characterized in that open-circuit protector comprises intelligent monitor, piezo-resistance; intelligent monitor there are six delivery outlets; be connected with six windings of protected location winding circuit with measuring unit winding circuit respectively, piezo-resistance is connected with intelligent monitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510269093.2A CN104821546A (en) | 2015-05-25 | 2015-05-25 | Protector circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510269093.2A CN104821546A (en) | 2015-05-25 | 2015-05-25 | Protector circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104821546A true CN104821546A (en) | 2015-08-05 |
Family
ID=53731760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510269093.2A Withdrawn CN104821546A (en) | 2015-05-25 | 2015-05-25 | Protector circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104821546A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104836200A (en) * | 2015-06-01 | 2015-08-12 | 安徽禄讯电子科技有限公司 | Open circuit protector circuit of secondary side of current transformer winding capable of intelligent selection |
-
2015
- 2015-05-25 CN CN201510269093.2A patent/CN104821546A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104836200A (en) * | 2015-06-01 | 2015-08-12 | 安徽禄讯电子科技有限公司 | Open circuit protector circuit of secondary side of current transformer winding capable of intelligent selection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20150805 |
|
| WW01 | Invention patent application withdrawn after publication |