CN202600110U - Device for real-time on-line monitoring of electric life of circuit breaker - Google Patents
Device for real-time on-line monitoring of electric life of circuit breaker Download PDFInfo
- Publication number
- CN202600110U CN202600110U CN 201220149911 CN201220149911U CN202600110U CN 202600110 U CN202600110 U CN 202600110U CN 201220149911 CN201220149911 CN 201220149911 CN 201220149911 U CN201220149911 U CN 201220149911U CN 202600110 U CN202600110 U CN 202600110U
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- line monitoring
- circuit breaker
- unit
- signal processing
- electrically connected
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Abstract
The utility model relates to an on-line monitoring system for a circuit breaker in an electric power system, in particular to a device for real-time on-line monitoring of the electric life of a circuit breaker. The device comprises a signal processing unit, an acquisition unit in signal connection with a circuit-breaker contact secondary loop, and an integrated control unit electrically connected with a circuit-breaker auxiliary contact. The acquisition unit is electrically connected with the signal processing unit, which is also electrically connected with the integrated control unit. Through real-time on-line monitoring of a current value when the circuit-breaker contact is disconnected, the device of the utility model realizes the function of on-line monitoring of the electric life of the circuit breaker and the alarm function. In addition, the device is good in stable performance, high in monitoring precision and wide in application range and improves the working efficiency.
Description
Technical field
The utility model relates to the on-line monitoring system of isolating switch in the electric system, especially a kind of circuit breaker electrical endurance real time on-line monitoring device.
Background technology
Along with development of modern society to electric system require increasingly highly, the reliability of primary cut-out of in electric system, undertaking control, protection dual-use function seems most important.Operational reliability in order to ensure primary cut-out cuts the waste, and improves the available rate of equipment, and the maintenance of power equipment is at present developed to the repair based on condition of component direction by prophylactic repair.
The electric life of isolating switch is an important content of repair based on condition of component, and the accumulative total size of current of contact of breaker is the key factor of its electric life of decision.Under the situation that can't confirm the actual dropout current size of isolating switch; Isolating switch is blindly disintegrated; Not only can cause huge manpower, financial resources waste and unnecessary power failure; And the intact isolating switch of script is broken down because of maintenance, it is very necessary therefore providing a kind of circuit breaker electrical endurance real time on-line monitoring device to come the accumulative total size of current of monitoring breaker contact.
The utility model content
The technical matters that the utility model will solve is: overcome the deficiency in the prior art, a kind of circuit breaker electrical endurance real time on-line monitoring device is provided.
The utility model solves the technical scheme that its technical matters adopted: a kind of circuit breaker electrical endurance real time on-line monitoring device; Comprise signal processing unit, the collecting unit that is connected with the contact of breaker secondary circuit signal and the Comprehensive Control unit that is electrically connected with the isolating switch auxiliary contact; Collecting unit is electrically connected with signal processing unit, and signal processing unit is electrically connected with the Comprehensive Control unit.
Described collecting unit has three current sensors.
Described signal processing unit has four low power operational amplifiers.
Described Comprehensive Control unit has micro controller unit, warning indicating member and communication unit.
Described communication unit has the 232TTL level communication and communicates by letter with RS485.
The beneficial effect of the utility model is: the current value of the utility model during through the disjunction of real time on-line monitoring contact of breaker realized on-line monitoring and warning function to circuit breaker electrical endurance; Stability is good; The precision of monitoring is high, and is applied widely, improved work efficiency.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the framework process flow diagram of the utility model.
Embodiment
Combine accompanying drawing that the utility model is further described now.The synoptic diagram that these accompanying drawings are simplification is only explained the basic structure of the utility model in a schematic way, so it only shows the formation relevant with the utility model.
Circuit breaker electrical endurance real time on-line monitoring device as shown in Figure 1; Comprise signal processing unit, the collecting unit that is connected with the contact of breaker secondary circuit signal and the Comprehensive Control unit that is electrically connected with the isolating switch auxiliary contact; Collecting unit is electrically connected with signal processing unit, and signal processing unit is electrically connected with the Comprehensive Control unit.
Collecting unit has three current sensors, and processing unit has four low power operational amplifiers, and the Comprehensive Control unit has micro controller unit, warning indicating member and communication unit, and communication unit has the 232TTL level communication and communicates by letter with RS485.
A, B, the C three-phase secondary current loop of contact of breaker penetrated in the collecting unit 1 in the current corresponding sensor successively; Current sensor is transferred to four low power operational amplifiers in the signal processing unit after converting the current signal in the secondary current loop that collects into voltage signal; Through being transferred to again in the microcontroller in the Comprehensive Control unit after the signal amplification of four low power operational amplifiers, level conversion, the Filtering Processing; When the contact of breaker disjunction; Auxiliary contact move simultaneously, and microcontroller just can be judged contact of breaker disjunction electric current constantly, again after the AD sampling of process microcontroller, the data processing; Be transferred on the communication facilities relevant with isolating switch through the 232TTL level communication in the communication unit, the isolating switch communication facilities passes through the RS485 communications again to the switchgear composite monitoring device.
The staff can come the electric current of real time on-line monitoring contact of breaker accumulative total through operating switch equipment complex monitoring device; And when electric current exceeds predefined safety value; The switchgear composite monitoring device will produce according to the indication of the warning indicating member in the Comprehensive Control unit and report to the police, and the staff can inquire about the electric life of isolating switch and make corresponding judgment according to the indication of reporting to the police.
Above-mentioned embodiment is only for explaining the technical conceive and the characteristics of the utility model; Its purpose is to let the personage that is familiar with this technology can understand the content of the utility model and implements; Can not limit the protection domain of the utility model with this; All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed in the protection domain of the utility model.
Claims (5)
1. circuit breaker electrical endurance real time on-line monitoring device; It is characterized in that: comprise signal processing unit, the collecting unit that is connected with the contact of breaker secondary circuit signal and the Comprehensive Control unit that is electrically connected with the isolating switch auxiliary contact; Collecting unit is electrically connected with signal processing unit, and signal processing unit is electrically connected with the Comprehensive Control unit.
2. circuit breaker electrical endurance real time on-line monitoring device according to claim 1 is characterized in that: described collecting unit has three current sensors.
3. circuit breaker electrical endurance real time on-line monitoring device according to claim 1, it is characterized in that: described signal processing unit has four low power operational amplifiers.
4. circuit breaker electrical endurance real time on-line monitoring device according to claim 1 is characterized in that: described Comprehensive Control unit has micro controller unit, warning indicating member and communication unit.
5. circuit breaker electrical endurance real time on-line monitoring device according to claim 4 is characterized in that: described communication unit has the 232TTL level communication and communicates by letter with RS485.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220149911 CN202600110U (en) | 2012-04-10 | 2012-04-10 | Device for real-time on-line monitoring of electric life of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220149911 CN202600110U (en) | 2012-04-10 | 2012-04-10 | Device for real-time on-line monitoring of electric life of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202600110U true CN202600110U (en) | 2012-12-12 |
Family
ID=47317641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220149911 Expired - Lifetime CN202600110U (en) | 2012-04-10 | 2012-04-10 | Device for real-time on-line monitoring of electric life of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202600110U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636745A (en) * | 2012-04-10 | 2012-08-15 | 常州森隆电力科技有限公司 | Real-time online monitoring device for electrical life of circuit breaker and monitoring method |
-
2012
- 2012-04-10 CN CN 201220149911 patent/CN202600110U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636745A (en) * | 2012-04-10 | 2012-08-15 | 常州森隆电力科技有限公司 | Real-time online monitoring device for electrical life of circuit breaker and monitoring method |
| CN102636745B (en) * | 2012-04-10 | 2014-07-30 | 常州森隆电力科技有限公司 | Real-time online monitoring device for electrical life of circuit breaker and monitoring method |
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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: 20121212 |
|
| CX01 | Expiry of patent term |