CN101984531A - Five-part type terminal protective device of power distribution monitoring system - Google Patents
Five-part type terminal protective device of power distribution monitoring system Download PDFInfo
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- CN101984531A CN101984531A CN2010105625699A CN201010562569A CN101984531A CN 101984531 A CN101984531 A CN 101984531A CN 2010105625699 A CN2010105625699 A CN 2010105625699A CN 201010562569 A CN201010562569 A CN 201010562569A CN 101984531 A CN101984531 A CN 101984531A
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- air switch
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Abstract
The invention relates to the technical filed of power distribution, in particular to a five-part type terminal protective device of a power distribution monitoring system, which comprises a multifunctional electrical apparatus release connecting circuit for protecting a multiloop air switch, a long time delay protective circuit, a short time delay protective circuit, an instant protective circuit, a zero-sequence protective circuit, a zone protective circuit, a voltage current sampling circuit, an incoming and outgoing line sampling circuit, a signal control sampling circuit and a power source modular circuit. The protective device of the invention has comprehensive functions, high cost performance, simple operation mode, high instantaneity, is convenient to use and maintain, and has a fix-part type protection function such as a long time delay protection function, a short time delay protection function, instant protection function, a zero-sequence protection function and a zone protection function, and wide applicability, and can be used as terminal protection systems for various power-supply systems, optimize power equipment operation, and reduce the maintain cost and the power consumption.
Description
Technical field
The present invention relates to the distribution technique field, particularly relate to the five-part form terminal protection device of distributing monitoring system.
Background technology
In electrical production, terminal control is one of important link.Therefore the q﹠r of terminal equipment has very important significance for improving power supply quality and power supply reliability.The terminal protection system is usually directed to many-sided technology such as computer technology, automatic technology, electronic technology, computer hardware technique and mechanics of communication as the visual plant of protection power supply terminal safe and reliable operation, and the safe and reliable high-quality and efficient operation that how to utilize these technology to improve power supply terminal equipment is the major issue that needs to be resolved hurrily.Often use circuit breaker in the prior art; traditional circuit breaker has thermal circuit beraker and electro-magnetic circuit breaker; but can't finish the protection to terminal equipment of many-sided omnibearing stereo formula bar none; only can finish the terminal protection of some aspects, can not satisfy many-sided needs in the present electrical production.Be limited to this kind situation; be necessary very much to provide a kind of protection system with multifunction protection means; allow the electric power system reliable efficient and protection that becomes show consideration for perfect; stop all issuable potential safety hazards to the full extent; allow the country and people's the security of the lives and property obtain appropriate guarantee, promote the healthy and stable development of national economy.
Summary of the invention
The five-part form terminal protection device that the objective of the invention is to avoid weak point of the prior art and a kind of distributing monitoring system is provided, it has the five-part form defencive function of long delay protection, short time delay protection, instantaneous protection, zero-sequenceprotection and locality protection.
Purpose of the present invention realizes by following technical measures.
The five-part form terminal protection device of distributing monitoring system comprises: multiloop air switch protection multifunction tripping device connecting circuit, long delay protective circuit, short time delay protective circuit, instantaneous protection circuit, zero-sequenceprotection circuit, locality protection circuit, electric current and voltage sample circuit, inlet wire outlet sample circuit, signal controlling sample circuit and power module circuitry;
The protection output of described long delay protective circuit, short time delay protective circuit, instantaneous protection circuit, zero-sequenceprotection circuit and locality protection circuit is connected in the protection input of described multiloop air switch protection with the multifunction tripping device connecting circuit, and the sampling output of described electric current and voltage sample circuit, inlet wire outlet sample circuit and signal controlling sample circuit is connected in the sampling input of described multiloop air switch protection with the multifunction tripping device connecting circuit; The output of described power module circuitry is connected in the power input of described multiloop air switch protection with the multifunction tripping device connecting circuit.
Preferably, also comprise the RS485 telecommunication circuit that is connected in described multiloop air switch protection usefulness multifunction tripping device connecting circuit according to the ModBUS stipulations.
Preferably, described inlet wire outlet sample circuit is provided with sampled point, and described sampled point is arranged at each loop auxiliary contact.
Preferably, described multiloop air switch protection comprises microcontroller P8xC591, trigger 74HC154D and operational amplifier LM324, LED light SR420561 with the multifunction tripping device connecting circuit.
Preferably, described electric current and voltage sample circuit includes microcontroller 4051B and operational amplifier LM324.
The five-part form terminal protection device complete function of distributing monitoring system of the present invention, cost performance height, mode of operation is simple and real-time is high, working service is very convenient, have long delay protection, short time delay protection, instantaneous protection, zero-sequenceprotection and locality protection five-part form defencive function simultaneously, have extensive applicability, can be as the terminal protection system of all kinds of electric power systems; Make the power equipment operation optimize, reduce maintenance cost, reduced power consumption.
Description of drawings
The present invention will be further described to utilize accompanying drawing, but the content in the accompanying drawing does not constitute any limitation of the invention.
Fig. 1 is the block diagram of an embodiment of the five-part form terminal protection device of distributing monitoring system of the present invention.
Fig. 2 is that the multiloop air switch protection of an embodiment of five-part form terminal protection device of distributing monitoring system of the present invention is with the circuit diagram of multifunction tripping device connecting circuit.
Fig. 3 is the circuit diagram of signal controlling sample circuit of an embodiment of the five-part form terminal protection device of distributing monitoring system of the present invention.
Fig. 4 is the circuit diagram of electric current and voltage sample circuit of an embodiment of the five-part form terminal protection device of distributing monitoring system of the present invention.
Fig. 5 is the circuit diagram of power module circuitry of an embodiment of the five-part form terminal protection device of distributing monitoring system of the present invention.
Embodiment
The invention will be further described with the following Examples.
Embodiment of the five-part form terminal protection device of distributing monitoring system of the present invention such as Fig. 1-shown in Figure 5 comprise: the protection of multiloop air switch is with multifunction tripping device connecting circuit, long delay protective circuit, short time delay protective circuit, instantaneous protection circuit, zero-sequenceprotection circuit, locality protection circuit, electric current and voltage sample circuit, inlet wire outlet sample circuit, signal controlling sample circuit and power module circuitry; The protection output of described long delay protective circuit, short time delay protective circuit, instantaneous protection circuit, zero-sequenceprotection circuit and locality protection circuit is connected in the protection input of described multiloop air switch protection with the multifunction tripping device connecting circuit, and the sampling output of described electric current and voltage sample circuit, inlet wire outlet sample circuit and signal controlling sample circuit is connected in the sampling input of described multiloop air switch protection with the multifunction tripping device connecting circuit; The output of described power module circuitry is connected in the power input of described multiloop air switch protection with the multifunction tripping device connecting circuit.
Also comprise and be connected in the RS485 telecommunication circuit according to ModBUS stipulations of described multiloop air switch protection with the multifunction tripping device connecting circuit.
Described inlet wire outlet sample circuit is provided with sampled point, and described sampled point is arranged at each loop auxiliary contact.
Described multiloop air switch protection comprises microcontroller P8xC591, trigger 74HC154D and operational amplifier LM324, LED light SR420561 with the multifunction tripping device connecting circuit.
Described electric current and voltage sample circuit includes microcontroller 4051B and operational amplifier LM324.
Should be noted that at last; above embodiment only is used to illustrate technical scheme of the present invention but not limiting the scope of the invention; although the present invention has been done detailed description with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can make amendment or be equal to replacement technical scheme of the present invention, and not break away from the essence and the scope of technical solution of the present invention.
Claims (5)
1. the five-part form terminal protection device of distributing monitoring system is characterized in that: comprising: multiloop air switch protection multifunction tripping device connecting circuit, long delay protective circuit, short time delay protective circuit, instantaneous protection circuit, zero-sequenceprotection circuit, locality protection circuit, electric current and voltage sample circuit, inlet wire outlet sample circuit, signal controlling sample circuit and power module circuitry;
The protection output of described long delay protective circuit, short time delay protective circuit, instantaneous protection circuit, zero-sequenceprotection circuit and locality protection circuit is connected in the protection input of described multiloop air switch protection with the multifunction tripping device connecting circuit, and the sampling output of described electric current and voltage sample circuit, inlet wire outlet sample circuit and signal controlling sample circuit is connected in the sampling input of described multiloop air switch protection with the multifunction tripping device connecting circuit; The output of described power module circuitry is connected in the power input of described multiloop air switch protection with the multifunction tripping device connecting circuit.
2. the five-part form terminal protection device of distributing monitoring system according to claim 1 is characterized in that: also comprise being connected in the RS485 telecommunication circuit according to ModBUS stipulations of described multiloop air switch protection with the multifunction tripping device connecting circuit.
3. the five-part form terminal protection device of distributing monitoring system according to claim 1, it is characterized in that: described inlet wire outlet sample circuit is provided with sampled point, and described sampled point is arranged at each loop auxiliary contact.
4. the five-part form terminal protection device of distributing monitoring system according to claim 1; it is characterized in that: described multiloop air switch protection comprises microcontroller P8xC591, trigger 74HC154D and operational amplifier LM324, LED light SR420561 with the multifunction tripping device connecting circuit.
5. the five-part form terminal protection device of distributing monitoring system according to claim 1, it is characterized in that: described electric current and voltage sample circuit includes microcontroller 4051B and operational amplifier LM324.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105625699A CN101984531A (en) | 2010-11-29 | 2010-11-29 | Five-part type terminal protective device of power distribution monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105625699A CN101984531A (en) | 2010-11-29 | 2010-11-29 | Five-part type terminal protective device of power distribution monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101984531A true CN101984531A (en) | 2011-03-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105625699A Pending CN101984531A (en) | 2010-11-29 | 2010-11-29 | Five-part type terminal protective device of power distribution monitoring system |
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| CN (1) | CN101984531A (en) |
Citations (4)
| 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 |
| CN101409467A (en) * | 2008-11-26 | 2009-04-15 | 上海电器科学研究所（集团）有限公司 | Circuit breaker controller |
| CN101615778A (en) * | 2009-08-03 | 2009-12-30 | 浙江南电电气有限公司 | Intelligent electrical apparatus release |
| CN201887433U (en) * | 2010-11-29 | 2011-06-29 | 东莞市开关厂有限公司 | Five-section-type terminal protection device of power distribution monitoring system |
-
2010
- 2010-11-29 CN CN2010105625699A patent/CN101984531A/en active Pending
Patent Citations (4)
| 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 |
| CN101409467A (en) * | 2008-11-26 | 2009-04-15 | 上海电器科学研究所（集团）有限公司 | Circuit breaker controller |
| CN101615778A (en) * | 2009-08-03 | 2009-12-30 | 浙江南电电气有限公司 | Intelligent electrical apparatus release |
| CN201887433U (en) * | 2010-11-29 | 2011-06-29 | 东莞市开关厂有限公司 | Five-section-type terminal protection device of power distribution monitoring system |
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Application publication date: 20110309 |