CN101847862A - Detachable moulded case circuit breaker with mandatory protection function - Google Patents
Detachable moulded case circuit breaker with mandatory protection function Download PDFInfo
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- CN101847862A CN101847862A CN 201010188371 CN201010188371A CN101847862A CN 101847862 A CN101847862 A CN 101847862A CN 201010188371 CN201010188371 CN 201010188371 CN 201010188371 A CN201010188371 A CN 201010188371A CN 101847862 A CN101847862 A CN 101847862A
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- circuit breaker
- mandatory protection
- protection device
- intelligent controller
- breaker
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Abstract
The invention relates to the technical field of the intelligent moulded case controller, in particular to a detachable moulded case circuit breaker with a mandatory protection function, which comprises a circuit breaker body, a signal connection wire, an intelligent controller and a mandatory protection device. The detachable moulded case circuit breaker is characterized in that the circuit breaker body is connected with the intelligent controller through the signal connection wire, and a groove which can be used for accommodating the mandatory protection device is arranged in the circuit breaker body; and the mandatory protection device is an independent device with a replay which consists of a digital circuit and is connected with a signal acquisition unit in the circuit breaker body through the output contact of the relay. Since the mandatory protection device is arranged in the circuit breaker shell without influence on the structure of the detachable circuit breaker, the detachable moulded case circuit breaker has the mandatory protection function, thereby avoiding that the circuit breaker is not protected, and greatly improving the reliability of the circuit breaker. The invention can be widely applied in the low-voltage moulded case circuit breaker with the intelligent controller.
Description
[technical field]
The present invention relates to the intelligent plastic housing controller technical field, specifically a kind of detachable moulded case circuit breaker with mandatory protection function.
[background technology]
The normal procedure intelligent breaker of plastic casing all is that signal gathering unit, protection action actuating mechanism, intelligent controller three parts are installed in the Shell of circuit breaker; but for fear of the influence to the part digital circuit under abominable operational environment such as strong electromagnetic, temperature acute variation of breaker of plastic casing housing; and in order to expand the intelligent controller function, so adopt that breaker body separates with intelligent controller, carry out ways of connecting by signal connecting line between breaker body and the intelligent controller.
Yet also there is drawback in the mode that this breaker body separates with intelligent controller: in the actual moving process; owing to reasons such as human error, signal connecting line wear out can cause the situation that intelligent controller is not worked or breaker body is not connected with intelligent controller; if this moment is with breaker closing; then circuit breaker just is under the unshielded state, has serious potential safety hazard.
[summary of the invention]
The objective of the invention is to overcome the deficiencies in the prior art, by a kind of mandatory protection device is installed in the Shell of circuit breaker, solved intelligent controller do not work or breaker body and situation that intelligent controller is not connected under, potential safety hazard during breaker closing.
In order to achieve the above object, the present invention proposes a kind of detachable moulded case circuit breaker with mandatory protection function, comprise breaker body, signal connecting line, intelligent controller, mandatory protection device, it is characterized in that: breaker body is connected with intelligent controller by signal connecting line, and the inside of breaker body is provided with can place the groove that the mandatory protection device is used; Described mandatory protection device is the self-contained unit that is provided with the digital circuit formation of relay, and connects the interior signal gathering unit of breaker body by the output contact of relay; The working power of described mandatory protection device obtains by signal gathering unit, and the working power of described relay is to be provided by signal connecting line by intelligent controller.
Digital circuit in the described mandatory protection device adopts the SA555 chip, and its operating voltage is 12V.
Described mandatory protection device has mandatory protection function, and its workflow is as follows:
(a) beginning;
(b) judge whether intelligent controller works or whether breaker body is connected with intelligent controller,, then carry out next step judgement if not if then get back to beginning;
(c) judge whether circuit breaker closes a floodgate, then get back to previous step if not, if then carry out next step;
(d) mandatory protection device work;
(e) breaker open operation;
(f) finish.
The present invention is under the situation that does not influence the separate type breaker structure; to the mandatory protection device be installed in the Shell of circuit breaker; make it have mandatory protection function; thereby avoided circuit breaker to be in unshielded state; improve the reliability of circuit breaker greatly, can be widely used in having the low pressure moulded case circuit breaker of intelligent controller.
[description of drawings]
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the workflow diagram of mandatory protection device among the present invention.
Fig. 3 connects the circuit diagram of signal gathering unit in the breaker body by relay for mandatory protection device among the present invention.
Fig. 4 is the circuit diagram of digital circuit in the mandatory protection device among the present invention.
Referring to Fig. 1,1 is breaker body; 2 is signal connecting line; 3 is intelligent controller; 4 is the mandatory protection device.
[embodiment]
Now in conjunction with the accompanying drawings the present invention is described further.
Participate in Fig. 1 and Fig. 3, the present invention includes breaker body 1, signal connecting line 2, intelligent controller 3 and mandatory protection device 4 four parts, breaker body 1 is connected with intelligent controller 3 by signal connecting line 2, the inside of breaker body 1 is provided with the groove that can place mandatory protection device 4 usefulness, also is provided with tripper, signal gathering unit etc. in the breaker body 1 in addition; The self-contained unit that mandatory protection device 4 constitutes for the digital circuit that is provided with relay, and by the signal gathering unit in the output contact connection breaker body 1 of relay.
The working power of this mandatory protection device 4 obtains by the signal gathering unit in the breaker body; and the switching of the output contact by relay realizes the open close of its working power; and the working power of relay 1 is provided by intelligent controller 3, and is delivered to mandatory protection device 4 in the breaker body by signal connecting line 2.
As shown in Figure 4; digital circuit in the mandatory protection device 4 adopts the SA555 chip; be 555 generators of using always; its operating voltage is 12V; its circuit is a typical application circuit; No. 1 pin ground connection of chip; No. 8 pin inserts the 12V input voltage; No. 4 pins that are used to reset insert No. 8 pins through not gate, and No. 2 pin divides two-way, and one the tunnel connects capacitor C 1 back ground connection; another road connects the positive pole of diode D2; the negative pole of diode D2 inserts the input of resistance R 2, and the output of resistance R 2 divides two-way, and one the tunnel connects resistance R 1 back inserts the 12V input voltage; another road is inserted No. 7 pins and is connected the positive pole of diode D1; the negative pole of diode D1 connects No. 6 pins and No. 2 pins, and No. 5 pin connects capacitor C 2 back ground connection, and No. 3 pin is signal output part and connects diode D3.
The mandatory protection device is a kind of independent device among the present invention, both can be placed in the groove of breaker body inside, also can take out placement; Here for the integrality that guarantees breaker of plastic casing and the consistency of outward appearance, mandatory protection device 4 is positioned in the groove of breaker body inside.
As the workflow diagram of Fig. 2 for mandatory protection device among the present invention, mandatory protection device 4 has mandatory protection function, and its workflow is as follows:
(a) beginning.
(b) judge whether intelligent controller works or whether breaker body is connected with intelligent controller,, then carry out next step judgement if not if then get back to beginning; When the situation that intelligent controller is not worked or breaker body is not connected with intelligent controller occurring, relay is because no working power then is in not operating state, and this moment, the relay output contact was in normally off.
(c) judge whether circuit breaker closes a floodgate, then get back to previous step if not, if then carry out next step; In case breaker closing, then the mandatory protection device is in running order.
(d) mandatory protection device work continues to send periodic trip signal, makes breaker open operation.
(e) breaker open operation, and can guarantee that circuit breaker can't close a floodgate.
(f) finish.
And under normal condition; be that the in running order or breaker body of intelligent controller is connected with intelligent controller normally; this moment, relay was in running order; the output contact of relay is in normally open; then the mandatory protection device can not worked, and circuit breaker is under the guard mode of intelligent controller.
Claims (3)
1. detachable moulded case circuit breaker with mandatory protection function, comprise breaker body, signal connecting line, intelligent controller, mandatory protection device, it is characterized in that: breaker body (1) is connected with intelligent controller (3) by signal connecting line (2), and the inside of breaker body (1) is provided with the groove that can place mandatory protection device (4) usefulness;
The self-contained unit that described mandatory protection device (4) constitutes for the digital circuit that is provided with relay, and by the signal gathering unit in the output contact connection breaker body (1) of relay;
The working power of described mandatory protection device (4) obtains by signal gathering unit, and the working power of described relay is to be provided by signal connecting line (2) by intelligent controller (3).
2. a kind of detachable moulded case circuit breaker with mandatory protection function according to claim 1 is characterized in that: the digital circuit in the described mandatory protection device (4) adopts the SA555 chip, and its operating voltage is 12V.
3. a kind of detachable moulded case circuit breaker with mandatory protection function according to claim 1 is characterized in that: described mandatory protection device (4) has mandatory protection function, and its workflow is as follows:
(a) beginning;
(b) judge whether intelligent controller works or whether breaker body is connected with intelligent controller,, then carry out next step judgement if not if then get back to beginning;
(c) judge whether circuit breaker closes a floodgate, then get back to previous step if not, if then carry out next step;
(d) mandatory protection device work;
(e) breaker open operation;
(f) finish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010188371 CN101847862B (en) | 2010-05-31 | 2010-05-31 | Detachable moulded case circuit breaker with mandatory protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010188371 CN101847862B (en) | 2010-05-31 | 2010-05-31 | Detachable moulded case circuit breaker with mandatory protection function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101847862A true CN101847862A (en) | 2010-09-29 |
| CN101847862B CN101847862B (en) | 2013-03-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010188371 Active CN101847862B (en) | 2010-05-31 | 2010-05-31 | Detachable moulded case circuit breaker with mandatory protection function |
Country Status (1)
| Country | Link |
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| CN (1) | CN101847862B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1257334A (en) * | 1999-12-16 | 2000-06-21 | 常熟开关厂 | Intelligent controller for communicable plastics casing circuit breaker |
| CN2819454Y (en) * | 2005-09-07 | 2006-09-20 | 河北宝凯电器有限公司 | Intelligent separated circuit breaker |
| CN101635230A (en) * | 2009-08-25 | 2010-01-27 | 上海磊跃自动化设备有限公司 | Low-pressure plastic shell circuit breaker capable of improving service life |
-
2010
- 2010-05-31 CN CN 201010188371 patent/CN101847862B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1257334A (en) * | 1999-12-16 | 2000-06-21 | 常熟开关厂 | Intelligent controller for communicable plastics casing circuit breaker |
| CN2819454Y (en) * | 2005-09-07 | 2006-09-20 | 河北宝凯电器有限公司 | Intelligent separated circuit breaker |
| CN101635230A (en) * | 2009-08-25 | 2010-01-27 | 上海磊跃自动化设备有限公司 | Low-pressure plastic shell circuit breaker capable of improving service life |
Non-Patent Citations (1)
| Title |
|---|
| 《电气时代》 20070228 张信明,万绍尤 基于分体式智能断路器的低压智能、可通信配电系统研发设想 , 第2期 * |
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| Publication number | Publication date |
|---|---|
| CN101847862B (en) | 2013-03-20 |
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