CN202103400U - Electronic release for intelligent MCCB - Google Patents
Electronic release for intelligent MCCB Download PDFInfo
- Publication number
- CN202103400U CN202103400U CN2011201972661U CN201120197266U CN202103400U CN 202103400 U CN202103400 U CN 202103400U CN 2011201972661 U CN2011201972661 U CN 2011201972661U CN 201120197266 U CN201120197266 U CN 201120197266U CN 202103400 U CN202103400 U CN 202103400U
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- CN
- China
- Prior art keywords
- chip microcomputer
- module
- trip unit
- plastic casing
- circuit
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- Expired - Lifetime
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Abstract
The utility model relates to the technical field of circuit breakers, in particular to an electronic release for an intelligent MCCB (Molded Case Circuit Breaker). The electronic release comprises a singlechip with a control program stored therein and a time controller arranged therein, a current transformer, an electrical quantity signal acquisition module, a circuit breaker make-position signal module and a release mechanism, wherein the input end of the electrical quantity signal acquisition module is connected with the current transformer, and the output end is connected with the singlechip; the output end of the circuit breaker make-position signal module is connected with the singlechip; and the input end of the release mechanism is connected with the singlechip. The electronic release provided by the utility model has the advantages that the release mechanism can be controlled by electronic elements; the control accuracy is high; not only can the electricity utilization condition of a circuit be detected, but also different measures can be taken according to the circuit conditions; both the safety and the stability of the circuit are taken into consideration; three sections of protection for an overload long delay, an overload short delay and an instant short circuit are realized; and the circuit can be better protected.
Description
Technical field
The utility model relates to breaker technical field, relates in particular to a kind of electronic trip unit of intelligent plastic casing break.
Background technology
Circuit breaker both can the hand switch electric current; Again can be in the circuit abnormal at circuit breaker place; During like serious overload or short circuit and fault such as under-voltage, automatic shutdown circuit, its function is equivalent to Fuse switch and the combination of crossing underheat relay etc.; But behind the disjunction fault current, generally need not change parts, so circuit breaker has obtained to use widely.
Circuit breaker is arranged on the power supply circuits, thus unusual condition open circuit that mostly can only testing circuit, and function is simply single; Need manual operation when being switched on or switched off power supply, can not take different measures, as for electric current when excessive according to circuit conditions; Open circuit immediately, and be not big especially for electric current, the overload of short time can not cause big infringement; And open circuit can make equipment lose continuity, at this moment should determine whether the outage source according to size of current and time.On the other hand, for the signal of telecommunication of circuit, existing circuit breaker is whether simple decision circuitry is unusual, and can not write down these signals of telecommunication of transmission, thus the electricity consumption situation of supervisory circuit.
Summary of the invention
The purpose of the utility model is exactly the electronic trip unit that a kind of intelligent plastic casing break is provided to the deficiency of prior art existence; Its scientific structure can take off mouth mechanism through electronic component control, and control precision is high; Electricity consumption situation that both can testing circuit; Can take different measures according to circuit conditions again, take into account the fail safe and the stability of circuit, can play the better protection effect circuit.
To achieve these goals; The technical scheme that the utility model adopts is: a kind of electronic trip unit of intelligent plastic casing break; It comprises single-chip microcomputer, current transformer, electric quantity signal collecting module, breaker closing position signal module, the tripping mechanism of storing control program and built-in time controller; The input of said electric quantity signal collecting module connects current transformer; The output of said electric quantity signal collecting module connects single-chip microcomputer, and the output of said breaker closing position signal module connects single-chip microcomputer, and the input of said tripping mechanism connects single-chip microcomputer.
Said electric quantity signal collecting module is provided with photoelectrical coupler.
The output of said electric quantity signal collecting module is provided with 10 high-precision AD translation interfaces.
The output of the sample circuit of said current transformer connects the power input of single-chip microcomputer.
Said single-chip microcomputer is connected with sensitive switch, and the input of this sensitive switch connects single-chip microcomputer, and the output of sensitive switch connects the input of tripping mechanism.
Said single-chip microcomputer is connected with the first shunt opening input module, the second shunt opening input module that is used to connect external shunt opening signal.
Said single-chip microcomputer is provided with communication interface.
Said communication interface is the standard interface based on MODBUS communication protocol.
This electronic trip unit is provided with key-press module, and the output of key-press module connects single-chip microcomputer.
This electronic trip unit is provided with display module, and the input of display module connects single-chip microcomputer, and the output of display module connects one or more in display screen, LED light and the buzzer.
The utility model beneficial effect is: the utility model comprises single-chip microcomputer, current transformer, electric quantity signal collecting module, breaker closing position signal module, the tripping mechanism of storing control program and built-in time controller; The input of said electric quantity signal collecting module connects current transformer; The output of said electric quantity signal collecting module connects single-chip microcomputer, and the output of said breaker closing position signal module connects single-chip microcomputer, and the input of said tripping mechanism connects single-chip microcomputer; The electronic trip unit of the intelligent plastic casing break of the utility model; Can take off mouth mechanism through electronic component control, control precision is high, electricity consumption situation that both can testing circuit; Can take different measures according to circuit conditions again; Take into account the fail safe and the stability of circuit, realize overload long delay, overload short time delay, the instantaneous three section protection of short circuit, can play the better protection effect circuit.
Description of drawings
Fig. 1 is the functional-block diagram of electronic trip unit of the intelligent plastic casing break of the utility model.
In Fig. 1, include:
1---single-chip microcomputer 2---current transformer
3---electric quantity signal collecting module 4---breaker closing position signal module
5---tripping mechanism 6---sensitive switch
71---first shunt opening input modules 72---, the second shunt opening input module
8---communication interface 9---key-press module
10---display module 11---alarm module.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
The electronic trip unit of the intelligent plastic casing break of the utility model; As shown in Figure 1; It comprises single-chip microcomputer 1, current transformer 2, electric quantity signal collecting module 3, breaker closing position signal module 4, the tripping mechanism 5 of storing control program and built-in time controller; The input of electric quantity signal collecting module 3 connects current transformer 2; The output of electric quantity signal collecting module 3 connects single-chip microcomputer 1, and electric quantity signal collecting module 3 can detect the signals of telecommunication such as the electric current, voltage, power of power supply, and this signal is passed to single-chip microcomputer 1.The output of breaker closing position signal module 4 connects single-chip microcomputer 1, and the input of tripping mechanism 5 connects single-chip microcomputer 1, and breaker closing position signal module 4 can detect the folding condition of circuit breaker, and this folding condition is passed to single-chip microcomputer 1.The electronic trip unit of the intelligent plastic casing break of the utility model; Can take off mouth mechanism through electronic component control; Control precision is high; Electricity consumption situation that both can testing circuit can realize transshipping long delay, overload short time delay, the instantaneous three section protection of short circuit again, can play the better protection effect to circuit.
Concrete, for the utility model, single-chip microcomputer 1 can be adopted as the LPC1114ARM processor, and the speed of service is fast, can guarantee real-time of signal processing.
Good linearity for inhibit signal; Electric quantity signal collecting module 3 is provided with photoelectrical coupler, and photoelectrical coupler can be realized the isolation of forceful electric power, light current, and the signal of telecommunication of power supply is converted into light signal, again light signal is converted into the signal of telecommunication; Signal has good linearty; Further, the output of electric quantity signal collecting module 3 is provided with 10 high-precision AD translation interfaces, and the AD translation interface is converted into digital signal with analog signal.
Current transformer 2 is provided with sample circuit, can the output of this sample circuit be connected the power input of single-chip microcomputer 1, as the stand-by power supply of the electronic trip unit of the utility model, guarantees the stability of system.
Shunt release is a short time duty, and coil electrify time generally can not surpass 1S, otherwise line will be burnt; Therefore the input of tripping mechanism 5 is connected with sensitive switch 6, and the input of sensitive switch 6 connects single-chip microcomputer 1, when the circuit breaker tripping branch is had no progeny or when single-chip microcomputer 1 is exported under-voltage signal, overvoltage signal; Sensitive switch 6 often converts to from normally off and opens; Even this moment the artificial button of pinning, the shunt opening coil can not switched on yet again, this has just been avoided the generation of coil scaling loss situation; After circuit breaker was fastening lock or resetting, sensitive switch was in normally closed position again.As the more excellent execution mode of the utility model, tripping mechanism 5 is an electromagnetic trip mechanism.
Single-chip microcomputer 1 is connected with the first shunt opening input module 71, the second shunt opening input module 72, and the input of the said first shunt opening input module 71, the second shunt opening input module 72 connects external shunt opening signal, thereby can realize shunted exciter tripping through external interrupt signal.
For the electronic trip unit of the utility model, single-chip microcomputer 1 is provided with communication interface 8, can control single-chip microcomputer 1 from upper computer control system, thus the Long-distance Control circuit breaker.Further, communication interface 8 is the standard interface based on MODBUS communication protocol, and this interface transmission speed is fast, and anti-common mode disturbances ability is strong, and can set up device network easily, thereby can on PC control software, control more circuit breaker.
This electronic trip unit is provided with key-press module 9, and the output of key-press module 9 connects single-chip microcomputer 1, can control through 9 pairs of circuit breakers of key-press module.
The utility model is provided with display module 10; The input of display module 10 connects single-chip microcomputer 1; The output of display module 10 connects one or more in display screen, LED light and the buzzer; Display screen is a LCD display further, through display module 10 can display power supply the signal of telecommunication, the fault of circuit breaker etc.
The utility model is provided with alarm module 11, and the input of alarm module 11 connects single-chip microcomputer 1, and this alarm module 11 can give the alarm according to the program that single-chip microcomputer is set.
Should be noted that at last; Above embodiment is only in order to explain the technical scheme of the utility model; But not to the restriction of the utility model protection range, although with reference to preferred embodiment the utility model has been done explanation at length, those of ordinary skill in the art is to be understood that; Can make amendment or be equal to replacement the technical scheme of the utility model, and not break away from the essence and the scope of the utility model technical scheme.
Claims (10)
1. the electronic trip unit of an intelligent plastic casing break; It is characterized in that: the single-chip microcomputer (1), current transformer (2), electric quantity signal collecting module (3), breaker closing position signal module (4), the tripping mechanism (5) that comprise storing control program and built-in time controller; The input of said electric quantity signal collecting module (3) connects current transformer (2); The output of said electric quantity signal collecting module (3) connects single-chip microcomputer (1); The output of said breaker closing position signal module (4) connects single-chip microcomputer (1), and the input of said tripping mechanism (5) connects single-chip microcomputer (1).
2. the electronic trip unit of intelligent plastic casing break according to claim 1, it is characterized in that: said electric quantity signal collecting module (3) is provided with photoelectrical coupler.
3. the electronic trip unit of intelligent plastic casing break according to claim 2, it is characterized in that: the output of said electric quantity signal collecting module (2) is provided with 10 high-precision AD translation interfaces.
4. the electronic trip unit of intelligent plastic casing break according to claim 1 is characterized in that: the power input of the output connection single-chip microcomputer (1) of the sample circuit of said current transformer (2).
5. the electronic trip unit of intelligent plastic casing break according to claim 1; It is characterized in that: said single-chip microcomputer (1) is connected with sensitive switch (6); The input of this sensitive switch (6) connects single-chip microcomputer (1), and the output of sensitive switch (6) connects the input of tripping mechanism (5).
6. the electronic trip unit of intelligent plastic casing break according to claim 1, it is characterized in that: said single-chip microcomputer (1) is connected with the first shunt opening input module (71), the second shunt opening input module (72) that is used to connect external shunt opening signal.
7. according to the electronic trip unit of any described intelligent plastic casing break of claim 1 ~ 6, it is characterized in that: said single-chip microcomputer (1) is provided with communication interface (8).
8. the electronic trip unit of intelligent plastic casing break according to claim 7 is characterized in that: said communication interface (8) is the standard interface based on MODBUS communication protocol.
9. the electronic trip unit of intelligent plastic casing break according to claim 8 is characterized in that: be provided with key-press module (9), the output connection single-chip microcomputer (1) of key-press module (9).
10. the electronic trip unit of intelligent plastic casing break according to claim 9; It is characterized in that: be provided with display module (10); The input of display module (10) connects single-chip microcomputer (1), and the output of display module (10) connects one or more in display screen, LED light and the buzzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201972661U CN202103400U (en) | 2011-06-13 | 2011-06-13 | Electronic release for intelligent MCCB |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201972661U CN202103400U (en) | 2011-06-13 | 2011-06-13 | Electronic release for intelligent MCCB |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202103400U true CN202103400U (en) | 2012-01-04 |
Family
ID=45389397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201972661U Expired - Lifetime CN202103400U (en) | 2011-06-13 | 2011-06-13 | Electronic release for intelligent MCCB |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202103400U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104217871A (en) * | 2013-06-05 | 2014-12-17 | 施耐德电器工业公司 | Multifunctional isolating switch |
| CN104578400B (en) * | 2013-10-24 | 2017-12-12 | 陈锦清 | A kind of distributor breaker intelligent protection device and method |
| CN111200272A (en) * | 2019-12-20 | 2020-05-26 | 南京亚派科技股份有限公司 | Intelligent plastic shell type circuit breaker and control method thereof |
-
2011
- 2011-06-13 CN CN2011201972661U patent/CN202103400U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104217871A (en) * | 2013-06-05 | 2014-12-17 | 施耐德电器工业公司 | Multifunctional isolating switch |
| CN104578400B (en) * | 2013-10-24 | 2017-12-12 | 陈锦清 | A kind of distributor breaker intelligent protection device and method |
| CN111200272A (en) * | 2019-12-20 | 2020-05-26 | 南京亚派科技股份有限公司 | Intelligent plastic shell type circuit breaker and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120104 |
|
| CX01 | Expiry of patent term |