CN104953559A - Intelligent arc light protection system provided with microcomputer - Google Patents
Intelligent arc light protection system provided with microcomputer Download PDFInfo
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- CN104953559A CN104953559A CN201510395594.5A CN201510395594A CN104953559A CN 104953559 A CN104953559 A CN 104953559A CN 201510395594 A CN201510395594 A CN 201510395594A CN 104953559 A CN104953559 A CN 104953559A
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- arc light
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention provides an intelligent arc light protection system provided with a microcomputer, and relates to the technical field of electrical equipment. The intelligent arc light protection system comprises a master control unit, arc light units, current units, circuit breakers and a power supply, wherein the master control unit is powered by the power supply, supplies working voltage to the arc light units and the current units, and is connected with the multiple arc light units, the multiple current units and the multiple circuit breakers respectively; the arc light units, the current units and the circuit breakers are arranged in different switch cabinets. According to the intelligent arc light protection system, arc light and current conditions in the switch cabinets can be monitored in real time, detected data are transmitted to the master control unit continuously, and the master control unit predicts and judges a fault which is likely to happen according to historical data and sends a trip action signal to the circuit breakers, so that damage to equipment is avoided.
Description
Technical field
The present invention relates to electrical equipment technical field, particularly relate to a kind of switch cubicle monitoring system.
Background technology
Existing conventional/the power supply hinge of distribution Medium Voltage Switchgear Shi Quan factory subsidiary engine/electric power system, when there is internal fault, whether promptly can excise fault, most important to the safe operation of full factory/distribution system, but the middle pressure bus of current Medium Voltage Switchgear does not still configure any protection specially, but taken into account by the relevant backup protection of service entrance switch, and the protection of service entrance switch and outlet switch needs to cooperatively interact, and the differential at least 300ms of general fast tripping protection time delay, even 500ms, and the cooperation of overcurrent protection is poorer reaches 1-2 seconds especially, so, any fault that bus occurs is pressed all at least to want time delay to excise in station-service/distribution system, in other words, the protection of pressing bus can excise fault in the very first time in existing station-service is also blank, in view of the critical role of middle pressure bus, the time delay excision of any fault, it is all the situation that we are very unwilling to see, because the various faults in switch cubicle, the electric arc that its breaking current produces and high temperature, gas in cabinet is sharply expanded, peak can be arrived within the extremely short time, seriously jeopardize the person and device security.
Summary of the invention
The invention provides a kind of microcomputer intelligent arc light protective system; it can be real-time sense switch cabinet in arc light and current conditions; and keep the data detected are transferred to main control unit; according to data prediction in the past, main control unit judges that the fault occurred possibly sends trip operation signal to circuit breaker, thus avoid the damage of equipment.
In order to solve the problem existing for background technology, the present invention is by the following technical solutions: comprise main control unit, arc light unit, current unit, circuit breaker, power supply, described power supply is powered to main control unit, arc light unit and circuit unit operating voltage is supplied to again by main control unit, main control unit connects respectively to individual arc light unit, multiple current unit and multiple circuit breaker, and arc light unit, current unit and circuit breaker are arranged in different switch cubicles.
Arc light unit and current unit can be distributed in different switch cubicles by the present invention, the arc light detected or current signal are sent to main control unit, the data that main control unit collects these necessity are stored calculating, trip signal is being exported to circuit breaker according to actual conditions, if the luminous intensity that arc light unit monitors exceedes set point and this switch cubicle electric current that current unit detects does not exceed set point, or the electric current that current unit detects exceedes set point and the luminous intensity that arc light unit monitors does not exceed set point, main control unit all can not export trip signal to circuit breaker, when the signal only having both to detect all exceeds set point, just trip operation can be made, arc light protecting system is equipped with an independently power supply in addition, when other system outlet powering-off state, present system still can normally work, thus ensure that the protection of the detection to each switch.
The present invention it can be real-time the arc light of monitoring switch cabinet and current conditions, and continue the data detected are transferred to main control unit, according to data prediction in the past, main control unit judges that the fault occurred possibly sends trip operation signal to circuit breaker, thus avoid the damage that sets.
Accompanying drawing explanation
Fig. 1 is one embodiment of the invention schematic diagrames.
Embodiment
Shown in Fig. 1; a kind of microcomputer intelligent arc light protective system; comprise main control unit, arc light unit, current unit, circuit breaker, power supply; described power supply is powered to main control unit; arc light unit and circuit unit operating voltage is supplied to again by main control unit; main control unit connects respectively to individual arc light unit, multiple current unit and multiple circuit breaker, and arc light unit, current unit and circuit breaker are arranged in different switch cubicles.
Arc light unit and current unit can be distributed in different switch cubicles by the present invention, the arc light detected or current signal are sent to main control unit, the data that main control unit collects these necessity are stored calculating, trip signal is being exported to circuit breaker according to actual conditions, if the luminous intensity that arc light unit monitors exceedes set point and this switch cubicle electric current that current unit detects does not exceed set point, or the electric current that current unit detects exceedes set point and the luminous intensity that arc light unit monitors does not exceed set point, main control unit all can not export trip signal to circuit breaker, when the signal only having both to detect all exceeds set point, just trip operation can be made, arc light protecting system is equipped with an independently power supply in addition, when other system outlet powering-off state, present system still can normally work, thus ensure that the protection of the detection to each switch.
The present invention it can be real-time the arc light of monitoring switch cabinet and current conditions, and continue the data detected are transferred to main control unit, according to data prediction in the past, main control unit judges that the fault occurred possibly sends trip operation signal to circuit breaker, thus avoid the damage that sets.
Claims (1)
1. microcomputer intelligent arc light protective system; it is characterized in that; comprise main control unit, arc light unit, current unit, circuit breaker, power supply; described power supply is powered to main control unit; arc light unit and circuit unit operating voltage is supplied to again by main control unit; main control unit connects respectively to individual arc light unit, multiple current unit and multiple circuit breaker, and arc light unit, current unit and circuit breaker are arranged in different switch cubicles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510395594.5A CN104953559A (en) | 2015-07-08 | 2015-07-08 | Intelligent arc light protection system provided with microcomputer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510395594.5A CN104953559A (en) | 2015-07-08 | 2015-07-08 | Intelligent arc light protection system provided with microcomputer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104953559A true CN104953559A (en) | 2015-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510395594.5A Pending CN104953559A (en) | 2015-07-08 | 2015-07-08 | Intelligent arc light protection system provided with microcomputer |
Country Status (1)
| Country | Link |
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| CN (1) | CN104953559A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08196040A (en) * | 1995-01-13 | 1996-07-30 | Toshiba Corp | Distribution power supply system |
| CN201590653U (en) * | 2009-12-25 | 2010-09-22 | 杭州瑞胜电气有限公司 | Photoelectric arc light protection system |
| CN102608494A (en) * | 2012-02-24 | 2012-07-25 | 国电南瑞科技股份有限公司 | Arc light monitoring intelligent component system and monitoring method for medium-low voltage switch of intelligent substation |
| CN103269060A (en) * | 2013-04-27 | 2013-08-28 | 合肥隆科电力设备有限责任公司 | Microcomputer intelligent arc light protective system |
-
2015
- 2015-07-08 CN CN201510395594.5A patent/CN104953559A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08196040A (en) * | 1995-01-13 | 1996-07-30 | Toshiba Corp | Distribution power supply system |
| CN201590653U (en) * | 2009-12-25 | 2010-09-22 | 杭州瑞胜电气有限公司 | Photoelectric arc light protection system |
| CN102608494A (en) * | 2012-02-24 | 2012-07-25 | 国电南瑞科技股份有限公司 | Arc light monitoring intelligent component system and monitoring method for medium-low voltage switch of intelligent substation |
| CN103269060A (en) * | 2013-04-27 | 2013-08-28 | 合肥隆科电力设备有限责任公司 | Microcomputer intelligent arc light protective system |
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Application publication date: 20150930 |
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| WD01 | Invention patent application deemed withdrawn after publication |