CN105932642A - Circuit with protector function - Google Patents
Circuit with protector function Download PDFInfo
- Publication number
- CN105932642A CN105932642A CN201610477426.5A CN201610477426A CN105932642A CN 105932642 A CN105932642 A CN 105932642A CN 201610477426 A CN201610477426 A CN 201610477426A CN 105932642 A CN105932642 A CN 105932642A
- Authority
- CN
- China
- Prior art keywords
- circuit
- protector
- measuring unit
- protected location
- windings
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/041—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using a short-circuiting device
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention provides a circuit with a protector function, and relates to the technical field of power transmission and distribution switchgears. The circuit is characterized by comprising an open circuit protector, a measurement unit winding circuit and a protection unit winding circuit, wherein the measurement unit winding circuit and the protection unit winding circuit are connected with the open circuit protector respectively. The circuit has the characteristics of being simple in structure, convenient to operate and the like; and the circuit can be effectively queried and maintained.
Description
Technical field
The present invention relates to electrical power distribution switchgear technical field, be specifically related to a kind of circuit with protector function.
Background technology
Increasingly mature along with electric automatization; various protection type components and parts emerge in an endless stream; in power system, current transformer plays and big electric 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 the most 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 varistor and connect with the earth; transformer secondary side is made to form loop; but being shielded by the defencive function of this phase, the protection measure and control unit being connected with this phase does not has effect yet simultaneously.
Summary of the invention
It is an object of the invention to provide a kind of circuit with protector function, it has simple in construction, easy to operate, effectively can 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 are connected with open-circuit protector around resistance circuit with protected location respectively around resistance circuit, measuring unit 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 comprises three windings and protected location, three winding parallels around resistance circuit, and three windings are connected with protected location respectively.
Described open-circuit protector comprises intelligent monitor, varistor, intelligent monitor has six delivery outlets, is connected around six windings of resistance circuit with measuring unit winding circuit and protected location respectively, and varistor is connected with intelligent monitor.
The present invention has the advantage that:
There is intelligent selection protection type or measurement type, if the input string such as protective loop measuring level can be made protective loop normally work 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 simultaneously, tell the winding open circuit that this transformer of backstage is specifically corresponding, convenient inquiry and maintenance, be allowed to fix a breakdown rapidly.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram.
Detailed description of the invention
With reference to Fig. 1, it comprises open-circuit protector, measuring unit winding circuit, protected location are connected with open-circuit protector around resistance circuit with protected location respectively around resistance circuit, measuring unit 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 comprises three windings and protected location, three winding parallels around resistance circuit, and three windings are connected with protected location respectively.
Described open-circuit protector comprises intelligent monitor, varistor, intelligent monitor has six delivery outlets, is connected around six windings of resistance circuit with measuring unit winding circuit and protected location respectively, and varistor is connected with intelligent monitor.
Claims (4)
1. a circuit with protector function, it is characterised in that it comprises open-circuit protector, measuring unit winding circuit, protected location are connected with open-circuit protector around resistance circuit with protected location respectively around resistance circuit, measuring unit winding circuit.
A kind of circuit with protector function the most according to claim 1, it is characterised in that described measuring unit winding circuit comprises three windings and measuring unit, three winding parallels, three windings are connected with measuring unit respectively.
A kind of circuit with protector function the most according to claim 1, it is characterised in that described protected location comprises three windings and protected location, three winding parallels around resistance circuit, three windings are connected with protected location respectively.
A kind of circuit with protector function the most according to claim 1; it is characterized in that open-circuit protector comprises intelligent monitor, varistor; six delivery outlets are had on intelligent monitor; being connected around six windings of resistance circuit with measuring unit winding circuit and protected location respectively, varistor is connected with intelligent monitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610477426.5A CN105932642A (en) | 2016-06-27 | 2016-06-27 | Circuit with protector function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610477426.5A CN105932642A (en) | 2016-06-27 | 2016-06-27 | Circuit with protector function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105932642A true CN105932642A (en) | 2016-09-07 |
Family
ID=56828903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610477426.5A Withdrawn CN105932642A (en) | 2016-06-27 | 2016-06-27 | Circuit with protector function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105932642A (en) |
-
2016
- 2016-06-27 CN CN201610477426.5A patent/CN105932642A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20160907 |