CN203607350U - Tripping device of electronic molded case circuit breaker - Google Patents
Tripping device of electronic molded case circuit breaker Download PDFInfo
- Publication number
- CN203607350U CN203607350U CN201320776207.9U CN201320776207U CN203607350U CN 203607350 U CN203607350 U CN 203607350U CN 201320776207 U CN201320776207 U CN 201320776207U CN 203607350 U CN203607350 U CN 203607350U
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- unit
- tripping
- circuit breaker
- time relay
- molded case
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- Expired - Lifetime
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- 238000001914 filtration Methods 0.000 claims abstract description 8
- 239000003990 capacitor Substances 0.000 claims description 15
- 238000001514 detection method Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The utility model discloses a tripping device of an electronic molded case circuit breaker comprising a rectification unit used for voltage input of a main line, a filtering unit capable of filtering the direct current output by the rectification unit, a switch unit capable of detecting external signals, and a tripping unit capable of disconnecting the circuit. The rectification unit, the filtering unit, the switch unit, and the tripping unit are sequentially electrically connected together. The tripping unit comprises a tripping coil and a time relay. The coil of the time relay is parallely connected with the tripping coil, and thereafter is serially connected with an off-delay normally-closed contact of the time relay, and then is parallely connected with the switch unit. The tripping device of the electronic molded case circuit breaker is advantageous in that by arranging the switch unit and the tripping unit, the remote tripping can be realized, and at the same time, the under-voltage of the detection circuit can be realized, and in addition, only a few auxiliary tripping systems are required, and therefore the operation can be facilitated, the costs are low, and the good practicability can be provided.
Description
Technical field
The utility model relates to field of circuit breakers, is specifically related to a kind of trip gear of electronic type molded case circuit breaker.
Background technology
Electronic type molded case circuit breaker is the control signal producing by intelligent controller; control release and make circuit breaker disjunction; thereby make circuit breaker play the effect of protection circuit; but; in the time having especially big short circuit current to pass through in circuit; electronic breaker disjunction fault as quick as thought, carries out route protection effectively.
At present conventional way is in electronic type molded case circuit breaker, to install dropout auxiliary system additional, this dropout auxiliary system generally comprise under-voltage release and long-range can switch dropout servicing unit.Shortcoming with the electronic type molded case circuit breaker of so conventional release is, as under-voltage release and long-range can must the outfit by switch dropout servicing unit of servicing unit simultaneously, with the under voltage on testing circuit in the time being applied to circuit lower than the voltage of rated voltage and long-range accident is carried out to long-range dropout.Its with high costs and complicated operation, makes troubles to user.
Utility model content
Therefore, for above-mentioned problem, the utility model proposes a kind of trip gear of electronic type molded case circuit breaker, can realize the under voltage on testing circuit simultaneously and long-range accident is carried out to long-range dropout, it needs less auxiliary tripping system, and convenient operation, cost are lower, thereby solve the deficiency of prior art.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is, a kind of trip gear of electronic type molded case circuit breaker, comprise the rectification unit of the voltage access of main line, the filter unit that the direct current of rectification unit output is carried out to filtering, detect the switch element of external signal and realize the trip unit of the electric current of open circuit, rectification unit, filter unit, switch element and trip unit are electrically connected in turn, described trip unit comprises tripping coil and the time relay, after the coil of the described time relay is in parallel with tripping coil, disconnecting normally-closed contact with the time delay of the time relay is connected in series, be connected in parallel with switch element afterwards.
Further, described rectification unit is full-wave bridge rectifier circuit, and it comprises diode D1, diode D2, diode D3 and diode D4.
Further, described filter unit comprises capacitor C 1, capacitor C 2, inductance L and resistance R, and resistance R and capacitor C 2 are connected in parallel, and capacitor C 2 and inductance L are connected afterwards and capacitor C 1 is connected in parallel.
The alternating voltage of this electronic type molded case circuit breaker of access is converted to direct voltage by rectification unit, filter unit carries out filtering by direct voltage and removes alternating component processing, switch element is used for receiving external control signal, trip unit is used for determining whether threads off this electronic type molded case circuit breaker, and controls this electronic type molded case circuit breaker and thread off.
The trip gear of electronic type molded case circuit breaker of the present utility model, by the setting of switch element and trip unit, can realize under voltage on testing circuit and to realizing long-range dropout, it needs less auxiliary tripping system simultaneously, and convenient operation, cost are lower, have good practicality.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of embodiment of the present utility model.
Embodiment
Now with embodiment, the utility model is further illustrated by reference to the accompanying drawings.
The trip gear of a kind of electronic type molded case circuit breaker of the present utility model, comprise the rectification unit of the voltage access of main line, the filter unit that the direct current of rectification unit output is carried out to filtering, detect the switch element of external signal and realize the trip unit of the electric current of open circuit, rectification unit, filter unit, switch element and trip unit are electrically connected in turn, described trip unit comprises tripping coil and the time relay, after the coil of the described time relay is in parallel with tripping coil, disconnecting normally-closed contact with the time delay of the time relay is connected in series, be connected in parallel with switch element afterwards.
With reference to Fig. 1, as a concrete example, described rectification unit is full-wave bridge rectifier circuit, and it comprises diode D1, diode D2, diode D3 and diode D4.Described filter unit comprises capacitor C 1, capacitor C 2, inductance L and resistance R, and resistance R and capacitor C 2 are connected in parallel, and capacitor C 2 and inductance L are connected afterwards and capacitor C 1 is connected in parallel.Trip unit comprises tripping coil and time relay T1.
The alternating voltage of this electronic type molded case circuit breaker of access is converted to direct voltage by rectification unit, filter unit carries out filtering by direct voltage and removes alternating component processing, switch element is used for receiving external control signal, trip unit is used for determining whether threads off this electronic type molded case circuit breaker, and controls this electronic type molded case circuit breaker and thread off.The delay time of time relay T1 is predeterminable.Due to tripping coil and time relay T1 access be all normally-closed contact, at this moment whole circuit forms loop, tripping coil energising, electronic type molded case circuit breaker is normally worked; After the default time of time relay T1 arrives, its normally-closed contact disconnects, and whole circuit loop also just disconnects, and electronic type molded case circuit breaker quits work.By the application of time relay T1, can set in advance delay time, if do not need time delay, it is zero that its delay time is set.By the setting of switch element, realize Long-distance Control and thread off.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; but those skilled in the art should be understood that; not departing from the spirit and scope of the present utility model that appended claims limits; can make a variety of changes the utility model in the form and details, be protection range of the present utility model.
Claims (3)
1. the trip gear of an electronic type molded case circuit breaker, it is characterized in that: comprise the rectification unit of the voltage access of main line, the filter unit that the direct current of rectification unit output is carried out to filtering, detect the switch element of external signal and realize the trip unit of the electric current of open circuit, rectification unit, filter unit, switch element and trip unit are electrically connected in turn, described trip unit comprises tripping coil and the time relay, after the coil of the described time relay is in parallel with tripping coil, disconnecting normally-closed contact with the time delay of the time relay is connected in series, be connected in parallel with switch element afterwards.
2. trip gear according to claim 1, is characterized in that: described rectification unit is full-wave bridge rectifier circuit, and it comprises diode D1, diode D2, diode D3 and diode D4.
3. trip gear according to claim 1 and 2, is characterized in that: described filter unit comprises capacitor C 1, capacitor C 2, inductance L and resistance R, and resistance R and capacitor C 2 are connected in parallel, and capacitor C 2 and inductance L are connected afterwards and capacitor C 1 is connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320776207.9U CN203607350U (en) | 2013-12-02 | 2013-12-02 | Tripping device of electronic molded case circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320776207.9U CN203607350U (en) | 2013-12-02 | 2013-12-02 | Tripping device of electronic molded case circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203607350U true CN203607350U (en) | 2014-05-21 |
Family
ID=50720014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320776207.9U Expired - Lifetime CN203607350U (en) | 2013-12-02 | 2013-12-02 | Tripping device of electronic molded case circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203607350U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390348A (en) * | 2015-07-22 | 2016-03-09 | 林宣荣 | Under-voltage release controller and control method thereof |
-
2013
- 2013-12-02 CN CN201320776207.9U patent/CN203607350U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390348A (en) * | 2015-07-22 | 2016-03-09 | 林宣荣 | Under-voltage release controller and control method thereof |
| CN105390348B (en) * | 2015-07-22 | 2019-03-26 | 林宣荣 | A kind of controller and its control method of under-voltage release |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Cai Pinhua Inventor before: Wang Qingxin Inventor before: Lin Haixun Inventor before: Zhang Jie |
|
| COR | Change of bibliographic data | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140521 |
|
| CX01 | Expiry of patent term |