CN201887433U - Five-section-type terminal protection device of power distribution monitoring system - Google Patents
Five-section-type terminal protection device of power distribution monitoring system Download PDFInfo
- Publication number
- CN201887433U CN201887433U CN2010206290908U CN201020629090U CN201887433U CN 201887433 U CN201887433 U CN 201887433U CN 2010206290908 U CN2010206290908 U CN 2010206290908U CN 201020629090 U CN201020629090 U CN 201020629090U CN 201887433 U CN201887433 U CN 201887433U
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- circuit
- protection
- monitoring system
- multifunction
- air switch
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Abstract
The utility model relates to the technical field of power distribution, in particular to a five-section-type terminal protection device of a power distribution monitoring system, which comprises a multifunctional tripping device connection circuit for multi-loop air switch protection, a long time-delay protection circuit, a short time-delay protection circuit, a transient protection circuit, a zero-sequence protection circuit, a regional protection circuit, a voltage-circuit sampling circuit, an incoming-outgoing line sampling circuit, a signal control sampling circuit and a power supply module circuit. The five-section-type terminal protection device of the power distribution monitoring system has the advantages that the functions are comprehensive, the cost performance is high, the operating method is simple, the real-time performance is high, the device is very convenient to use and maintain, the device has a function of five-section-type protection, i.e. long time-delay protection, short time-delay protection, transient protection, zero-sequence protection and regional protection, the application scope is wide, the device can be used as a terminal protection system for all kinds of power supply systems, the operation of power equipment is optimized, the maintenance cost is reduced and the power consumption is decreased.
Description
Technical field
The utility model relates to the distribution technique field, particularly relates 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.
The utility model content
The purpose of this utility model is to avoid weak point of the prior art and five-part form terminal protection device that a kind of distributing monitoring system is provided, and it has the five-part form defencive function of long delay protection, short time delay protection, instantaneous protection, zero-sequenceprotection and locality protection.
The purpose of this utility model 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 utility model, 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
Utilize accompanying drawing that the utility model is described further, but the content in the accompanying drawing does not constitute any restriction of the present utility model.
Fig. 1 is the block diagram of an embodiment of the five-part form terminal protection device of distributing monitoring system of the present utility model.
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 utility model 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 utility model.
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 utility model.
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 utility model.
Embodiment
The utility model is described in further detail with the following Examples.
Embodiment of the five-part form terminal protection device of distributing monitoring system of the present utility model 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 the technical solution of the utility model is described but not to the restriction of the utility model protection range; although the utility model 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 the technical solution of the utility model, and not break away from the essence and the scope of technical solutions of the utility model.
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 |
|---|---|---|---|
| CN2010206290908U CN201887433U (en) | 2010-11-29 | 2010-11-29 | Five-section-type terminal protection device of power distribution monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206290908U CN201887433U (en) | 2010-11-29 | 2010-11-29 | Five-section-type terminal protection device of power distribution monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201887433U true CN201887433U (en) | 2011-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206290908U Expired - Lifetime CN201887433U (en) | 2010-11-29 | 2010-11-29 | Five-section-type terminal protection device of power distribution monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201887433U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984531A (en) * | 2010-11-29 | 2011-03-09 | 东莞市开关厂有限公司 | Five-part type terminal protective device of power distribution monitoring system |
-
2010
- 2010-11-29 CN CN2010206290908U patent/CN201887433U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984531A (en) * | 2010-11-29 | 2011-03-09 | 东莞市开关厂有限公司 | Five-part type terminal protective device of power distribution monitoring system |
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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: 20110629 |
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| CX01 | Expiry of patent term |