CN102903582A - Controller device of intelligent residual current circuit breaker - Google Patents
Controller device of intelligent residual current circuit breaker Download PDFInfo
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- CN102903582A CN102903582A CN2012102997985A CN201210299798A CN102903582A CN 102903582 A CN102903582 A CN 102903582A CN 2012102997985 A CN2012102997985 A CN 2012102997985A CN 201210299798 A CN201210299798 A CN 201210299798A CN 102903582 A CN102903582 A CN 102903582A
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Abstract
The invention discloses a controller device of an intelligent residual current circuit breaker. A controller is mainly composed of a power module, a current acquiring module, a control module, a single chip microcomputer processing module, a human-computer interface and a communication module which are connected through electrical signals. The power module induces a power supply by means of a current transformer. The current acquiring module adopts a rail-to-rail operational amplifier. The control module adopts a voltage triggering drive. The controller device of the intelligent residual current circuit breaker utilizes the current transformer as a self-sustained power supply of the controller so as to provide a stable working power supply for the circuit breaker. Based on output characteristics of the rail-to-rail operational amplifier, an amplitude value of signal sampling is improved, and the control accuracy of a system is improved. Voltage is used for triggering a metal oxide semiconductor (MOS) tube to drive a magnetic flow converter to move, the power consumption of the self-sustained power supply is reduced while the reliability is ensured.
Description
Technical field
The present invention relates to a kind of intelligent residual current circuit breaker control device, belong to the low voltage electrical apparatus technology field.
Background technology
Residual current circuit breaker, for connection under the normal running conditions, carrying and breaking current and under rated condition, the mechanical switch electrical equipment that contact is disconnected, it mainly comprises mechanical shell and controller two parts, its core is controller.At present, the broken-circuit controller Main Problems is as follows: mainly rely on line voltage distribution work, when line short, electric power is very large, and voltage is dragged down, and then controller can not be made correct response reliably; The controller signals acquisition module adopts common amplifier, between output signal and the amplifier signal relatively large deviation is arranged, and sampling precision is low, easily causes the controller error reaction; Control module adopts triode switch, be difficult for driving, and power consumption is high.
Summary of the invention
Problem for above-mentioned prior art exists the invention provides a kind of intelligent residual current circuit breaker control device, stable working power is provided for whole controller system; Improve the signal sampling accuracy; Drive easily, and reduce power supply power consumption.
To achieve these goals, the technical solution used in the present invention is: a kind of intelligent residual current circuit breaker control device, controller is is mainly connected and composed by power module, current acquisition module, control module, single chip processing module, man-machine interface and the communication module signal of telecommunication, and power module relies on the current transformer power supply of inducting; The current acquisition module adopts rail-to-rail amplifier; Described control module adopts voltage triggered to drive.
Voltage triggered drives and is metal-oxide-semiconductor.
The present invention utilizes current transformer to serve as the authigenic power supply of controller, and controller can make circuit breaker make correct action in the situations such as overload, short circuit reliably, for circuit breaker provides stable working power; Based on the output characteristic of rail-to-rail amplifier, improve the amplitude of signal sampling, do the AD conversion for single-chip microcomputer and lay a good foundation, improved the accuracy of system's control; Adopt the voltage triggered metal-oxide-semiconductor to drive the magnetic flow convertor action, when guaranteeing high reliability, reduced the power consumption of authigenic power supply.
Description of drawings
Fig. 1 is operation principle schematic diagram of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, this intelligent residual current circuit breaker control device, controller is is mainly connected and composed by power module, current acquisition module controls module, single chip processing module, man-machine interface and the communication module signal of telecommunication, and power module relies on the current transformer power supply of inducting; The current acquisition module adopts rail-to-rail amplifier; Control module adopts voltage triggered to drive.
Voltage triggered drives as metal-oxide-semiconductor, and as optimal way, it is compared with the triode switch that generally uses, and has by voltage to drive, and it is easier to drive, the advantage that power supply power consumption is lower.
Particularly, intelligent residual current circuit breaker controller is operated in the residual current circuit breaker, when the failure conditions such as circuit appearance overload, short circuit, electric current surpasses set point, and controller can select certain delay time driving magnetic flow convertor to make circuit breaker finish the separating brake action according to failure condition.
Claims (2)
1. intelligent residual current circuit breaker control device, controller is is mainly connected and composed by power module, current acquisition module, control module, single chip processing module, man-machine interface and the communication module signal of telecommunication, it is characterized in that described power module relies on the current transformer power supply of inducting; Described current acquisition module adopts rail-to-rail amplifier; Described control module adopts voltage triggered to drive.
2. a kind of intelligent residual current circuit breaker control device according to claim 1 is characterized in that, described voltage triggered drives and is metal-oxide-semiconductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102997985A CN102903582A (en) | 2012-08-21 | 2012-08-21 | Controller device of intelligent residual current circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102997985A CN102903582A (en) | 2012-08-21 | 2012-08-21 | Controller device of intelligent residual current circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102903582A true CN102903582A (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102997985A Pending CN102903582A (en) | 2012-08-21 | 2012-08-21 | Controller device of intelligent residual current circuit breaker |
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| CN (1) | CN102903582A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113725807A (en) * | 2020-05-26 | 2021-11-30 | 天津首瑞智能电气有限公司 | Protective device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050146818A1 (en) * | 2001-02-01 | 2005-07-07 | Bax Ronald A. | Aircraft applicable current imbalance detection and circuit interrupter and packaging thereof |
| CN201514560U (en) * | 2009-07-24 | 2010-06-23 | 德力西电气有限公司 | Circuit of intelligent plastic case relay controller |
| CN102072998A (en) * | 2010-11-29 | 2011-05-25 | 江苏通驰自动化系统有限公司 | Half structure type high voltage wireless data acquisition device |
| CN202772089U (en) * | 2012-08-21 | 2013-03-06 | 江苏云意电气股份有限公司 | Intelligent controller device of residual current breaker |
-
2012
- 2012-08-21 CN CN2012102997985A patent/CN102903582A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050146818A1 (en) * | 2001-02-01 | 2005-07-07 | Bax Ronald A. | Aircraft applicable current imbalance detection and circuit interrupter and packaging thereof |
| CN201514560U (en) * | 2009-07-24 | 2010-06-23 | 德力西电气有限公司 | Circuit of intelligent plastic case relay controller |
| CN102072998A (en) * | 2010-11-29 | 2011-05-25 | 江苏通驰自动化系统有限公司 | Half structure type high voltage wireless data acquisition device |
| CN202772089U (en) * | 2012-08-21 | 2013-03-06 | 江苏云意电气股份有限公司 | Intelligent controller device of residual current breaker |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113725807A (en) * | 2020-05-26 | 2021-11-30 | 天津首瑞智能电气有限公司 | Protective device |
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Application publication date: 20130130 |