CN203151071U - Intelligent moulded case circuit breaker shunt trip control module - Google Patents
Intelligent moulded case circuit breaker shunt trip control module Download PDFInfo
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- CN203151071U CN203151071U CN 201320125141 CN201320125141U CN203151071U CN 203151071 U CN203151071 U CN 203151071U CN 201320125141 CN201320125141 CN 201320125141 CN 201320125141 U CN201320125141 U CN 201320125141U CN 203151071 U CN203151071 U CN 203151071U
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- circuit breaker
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Abstract
The utility model provides an intelligent moulded case circuit breaker shunt trip control module which comprises an AC and DC conversion circuit, a reference voltage circuit, a comparator, a triode and three resistors. An input end of the AC and DC conversion circuit is connected with a shunt signal. A first resistor and a second resistor are in series connection and then are connected with the output voltage of the AC and DC conversion circuit. A series connection point of the two resistors is connected with a negative input end of the comparator. A positive input end of the comparator is connected with an output end of the reference voltage circuit, and an output end of the comparator is connected with a base electrode of the triode. A collector of the triode is connected with a positive output end of the AC and DC conversion circuit, and an emitter is connected to an negative output end of the AC and DC conversion circuit through a flux converter. A third resistor is a lower bias resistor. According to the intelligent moulded case circuit breaker shunt trip control module, by using the original flux converter in the moulded case circuit breaker, a circuit breaker mechanism is tripped, an electromagnetic coil in a traditional shunt release is saved, the module does not occupy the internal space of the circuit breaker, and a condition is created for the installation of other accessories.
Description
Technical field
The utility model relates to a kind of circuit that can control the breaker mechanism dropout after receiving the shunt opening signal, belongs to the control technology field.
Background technology
The intelligent plastic housing circuit breaker is common industry and civilian power distribution protection device, can realize the accurate protection of distribution line overload and short trouble.General breaker of plastic casing requires to install such as in the annexes such as under-voltage release, shunt release, auxiliary contact, Alarm contactor one or both, but because the intelligent plastic housing circuit breaker has been installed the intelligent controller hardware circuit, and the electromagnetic force that existing shunt release adopts solenoid to produce drives the breaker mechanism dropout, need occupation space bigger, therefore intelligent plastic housing circuit breaker inside has not had enough spaces to hold two kinds of annexes, can not satisfy user's requirement in this respect.
The utility model content
The purpose of this utility model is the drawback at prior art, provides a kind of intelligent plastic housing circuit breaker shunted exciter tripping control module that does not take the circuit breaker inner space, to satisfy multiple annex installation requirement.
Problem described in the utility model realizes with following technical proposals:
A kind of intelligent plastic housing circuit breaker shunted exciter tripping control module, comprise ac-dc converter circuit in the formation, reference voltage circuit, comparator, triode, coupling capacitance and three resistance, the ac input end of described ac-dc converter circuit connects the shunt opening signal, first resistance and the output voltage that connects ac-dc converter circuit after second resistance is connected in series, the serial connection point of the two connects the negative input end of comparator, the output of the positive input termination reference voltage circuit of described comparator, its output connects the base stage of triode through coupling capacitance, the collector electrode of described triode connects the positive output end of ac-dc converter circuit, the magnetic flow convertor of emitter through intelligent plastic housing circuit breaker inside connects the negative output terminal of ac-dc converter circuit, and the 3rd resistance is its below-center offset resistance.
Above-mentioned intelligent plastic housing circuit breaker shunted exciter tripping control module, described ac-dc converter circuit comprises transformer, rectifier bridge and filter capacitor, the primary coil of described transformer connects the shunt opening signal, secondary coil connects the ac input end of rectifier bridge, and the output voltage of described rectifier bridge is other circuit supply after filter capacitor filtering.
Above-mentioned intelligent plastic housing circuit breaker shunted exciter tripping control module, described reference voltage circuit comprises voltage-stabiliser tube, potentiometer and the 4th resistance, the positive pole of described voltage-stabiliser tube connects the negative output terminal of ac-dc converter circuit, negative pole connects the positive output end of ac-dc converter circuit through the 4th resistance, described potentiometer is attempted by on the voltage-stabiliser tube, the positive input terminal of its slip termination comparator.
Above-mentioned intelligent plastic housing circuit breaker shunted exciter tripping control module, before the primary coil of transformer, also be provided with bleeder circuit, described bleeder circuit is made up of the 5th resistance and the 6th resistance, connects the shunt opening signal after the two is connected in series, and the output voltage at the 6th resistance two ends connects the primary coil of transformer.
The utility model utilizes the interior original magnetic flow convertor of breaker of plastic casing that breaker mechanism is threaded off, saved the solenoid in traditional shunt release, and this module can be installed on the outer wall of circuit breaker, do not take the circuit breaker inner space, thereby created condition for the installation of other annex.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is scheme of installation of the present utility model;
Fig. 2 and Fig. 3 are two kinds of electrical schematic diagrams of the present utility model.
Fig. 4 is the intelligence of the intelligent plastic housing circuit breaker electric theory diagram of threading off.
Each list of reference numerals is among the figure: 1, shunted exciter tripping control module, 2, the draw bar on the breaker mechanism, T, transformer, ZQ, rectifier bridge, Q, triode, C, filter capacitor, C2, coupling capacitance, CB, magnetic flow convertor, F, comparator, D, voltage-stabiliser tube, W, potentiometer, R1～R6, first resistance～the 6th resistance.
Embodiment
Referring to Fig. 1, Fig. 4, characteristics of the present utility model are action executive components (namely utilizing the mechanism of the electromagnetic force driving circuit breaker of solenoid) that shunt release is not set, but the action executive component (being magnetic flow convertor CB) of intelligent breaker is set.Allow magnetic flow convertor CB when ensureing the intelligent breaker intelligent protection function, also carry out the dropout action command of shunted exciter tripping control module.Namely after the shunted exciter tripping control module was received 70%-110%Ue shunt opening signal, the shunted exciter tripping control module was given an order to the magnetic flow convertor CB of intelligent breaker, and the circuit breaker draw bar is shifted in magnetic flow convertor CB action onto, and circuit breaker is disconnected.
Fig. 2 is shunt opening signal voltage electrical schematic diagram of the present utility model when being 220V, and its operation principle is as follows:
Voltage-stabiliser tube D, the 4th resistance and potentiometer W constitute reference voltage circuit, the constant voltage of voltage-stabiliser tube D output+5V, and this voltage is input to the positive input terminal of comparator F after potentiometer W adjusts, and potentiometer W can improve the output services state of voltage-stabiliser tube D effectively.First resistance R 1, second resistance R 2 constitute a bleeder circuit, and its partial pressure value determines that by the resistance size of the output potential of rectifier bridge ZQ and first resistance R 1, second resistance R 2 output voltage of this bleeder circuit is received the negative input end of comparator F.Before not receiving the shunt opening signal, entire circuit is not set up electric current and voltage, and magnetic flow convertor CB can not move.When receiving the shunt opening signal, the output voltage of the bleeder circuit that is made of first resistance R 1 and second resistance R 2 is lower than the output voltage of reference voltage circuit.Like this, in case receive after the shunt opening signal, the level of the negative input end of comparator F will be lower than the level of positive input terminal, and comparator F will export a high level, makes triode Q conducting, so just has electric current to flow through magnetic flow convertor CB, the release action.As long as the shunt opening signal voltage of input is greater than 70%Ue, shunt release can both action message.Here triode Q has adopted the connected mode of emitter following; the winding coil of magnetic flow convertor CB is connected between the emitter and ground of triode Q; after winding coil that electric current flows through magnetic flow convertor CB makes the release action; the current potential of triode Q emitter will increase; cause triode Q to end at last, so just protected magnetic flow convertor CB.In addition, even the parameter designing of circuit also can guarantee the phenomenon that magnetic flow convertor also can not appear burning in the long-term energising of coil.
Fig. 3 is shunt opening signal voltage electrical schematic diagram of the present utility model when being 380V, its operation principle and Fig. 2 are basic identical, just set up the bleeder circuit of being formed by the 5th resistance R 5 and the 6th resistance R 6 in transformer T front portion, this bleeder circuit is reduced to the input that is added in transformer T behind the 220V with 380V voltage, guarantees transformer T output 12V voltage.Can certainly by transformer T 380V voltage directly be reduced to 12V by changing the parameter of transformer T.
The utility model not only has the shunt opening defencive function, and easy for installation, reliable in action, can satisfy the user installs two groups of annexes simultaneously in the intelligent plastic housing circuit breaker requirement.The relevant requirements that meets GB14048.2 " low voltage switchgear and control appliance low-voltage circuit breaker " fully.
Claims (4)
1. intelligent plastic housing circuit breaker shunted exciter tripping control module, it is characterized in that, it comprises ac-dc converter circuit, reference voltage circuit, comparator (F), triode (Q), coupling capacitance (C2) and three resistance, the ac input end of described ac-dc converter circuit connects the shunt opening signal, first resistance (R1) and the output voltage that connects ac-dc converter circuit after second resistance (R2) is connected in series, the serial connection point of the two connects the negative input end of comparator (F), the output of the positive input termination reference voltage circuit of described comparator (F), its output connects the base stage of triode (Q) through coupling capacitance (C2), the collector electrode of described triode (Q) connects the positive output end of ac-dc converter circuit, emitter connects the negative output terminal of ac-dc converter circuit through the magnetic flow convertor (CB) of intelligent plastic housing circuit breaker inside, and the 3rd resistance (R3) is its below-center offset resistance.
2. intelligent plastic housing circuit breaker shunted exciter tripping control module according to claim 1, it is characterized in that, described ac-dc converter circuit comprises transformer (T), rectifier bridge (ZQ) and filter capacitor (C1), the primary coil of described transformer (T) connects the shunt opening signal, secondary coil connects the ac input end of rectifier bridge (ZQ), and the output voltage of described rectifier bridge (ZQ) is other circuit supply after filter capacitor (C1) filtering.
3. intelligent plastic housing circuit breaker shunted exciter tripping control module according to claim 1 and 2, it is characterized in that, described reference voltage circuit comprises voltage-stabiliser tube (D), potentiometer (W) and the 4th resistance (R4), the positive pole of described voltage-stabiliser tube (D) connects the negative output terminal of ac-dc converter circuit, negative pole connects the positive output end of ac-dc converter circuit through the 4th resistance (R4), described potentiometer (W) is attempted by on the voltage-stabiliser tube (D), the positive input terminal of its slip termination comparator (F).
4. intelligent plastic housing circuit breaker shunted exciter tripping control module according to claim 3, it is characterized in that, before the primary coil of transformer (T), also be provided with bleeder circuit, described bleeder circuit is made up of the 5th resistance (R5) and the 6th resistance (R6), connect the shunt opening signal after the two is connected in series, the output voltage at the 6th resistance (R6) two ends connects the primary coil of transformer (T).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320125141 CN203151071U (en) | 2013-03-19 | 2013-03-19 | Intelligent moulded case circuit breaker shunt trip control module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320125141 CN203151071U (en) | 2013-03-19 | 2013-03-19 | Intelligent moulded case circuit breaker shunt trip control module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203151071U true CN203151071U (en) | 2013-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320125141 Expired - Fee Related CN203151071U (en) | 2013-03-19 | 2013-03-19 | Intelligent moulded case circuit breaker shunt trip control module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203151071U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108963981A (en) * | 2018-06-07 | 2018-12-07 | 浙江正泰电器股份有限公司 | Shunt release and breaker |
-
2013
- 2013-03-19 CN CN 201320125141 patent/CN203151071U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108963981A (en) * | 2018-06-07 | 2018-12-07 | 浙江正泰电器股份有限公司 | Shunt release and breaker |
| CN108963981B (en) * | 2018-06-07 | 2024-06-04 | 浙江正泰电器股份有限公司 | Shunt release and circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HEBEI BAOKAI ELECTRIC CO., LTD. Free format text: FORMER NAME: BAOKAI ELECTRIC CO., LTD., HEBEI |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 072550 Xu 266, Chaoyang North Street, Hebei, Baoding province (king store Industrial Park) Patentee after: Hebei Bao Kai Electric Applicance Co., Ltd Patentee after: Baoding Kaizheng Electric Co., Ltd. Address before: 072550 Xu 266, Chaoyang North Street, Hebei, Baoding province (king store Industrial Park) Patentee before: Hebei Baokai Electrical Equipment Co., Ltd. Patentee before: Baoding Kaizheng Electric Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 072550 Xu 266, Chaoyang North Street, Hebei, Baoding province (king store Industrial Park) Patentee after: Hebei Bao Kai electric Limited by Share Ltd Patentee after: Baoding Kaizheng Electric Co., Ltd. Address before: 072550 Xu 266, Chaoyang North Street, Hebei, Baoding province (king store Industrial Park) Patentee before: Hebei Bao Kai Electric Applicance Co., Ltd Patentee before: Baoding Kaizheng Electric Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20200319 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |