CN204361791U - A kind of circuit structure of intelligent low-pressure distribution terminal - Google Patents
A kind of circuit structure of intelligent low-pressure distribution terminal Download PDFInfo
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- CN204361791U CN204361791U CN201520078119.0U CN201520078119U CN204361791U CN 204361791 U CN204361791 U CN 204361791U CN 201520078119 U CN201520078119 U CN 201520078119U CN 204361791 U CN204361791 U CN 204361791U
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Abstract
The utility model discloses a kind of circuit structure of intelligent low-pressure distribution terminal, comprises master controller, temperature sensor, metering units, communication unit, power subsystem, current-voltage sampling unit, residual current protective unit and tripping coil; Power subsystem is electrically connected with master controller, communication unit and residual current protective unit respectively; temperature sensor, metering units are connected the input of master controller respectively with current-voltage sampling unit; residual current protective unit is electrically connected with master controller; the output of residual current protective unit connects tripping coil; communication unit is connected with master controller, and master controller is connected with host computer by communication unit.Conventional earth leakage protector combines with miniature circuit breaker and intelligent control system by the utility model; can measure in real time, rated output, the electrical energy parameter such as meritorious, idle; and send host computer to by its communication unit, be convenient to user and carry out monitoring and controlling at far-end.
Description
Technical field
The utility model relates to power automatic device, particularly relates to a kind of circuit structure of intelligent low-pressure distribution terminal.
Background technology
In the development and construction process of electric power system, circuit breaker and leakage protection equipment are applied always more extensive.Now along with the rise that intelligent grid is built, higher requirement is also proposed to the technical merit of matching equipment.Under the impact of modern intelligent Application tide, intellectualized technology and conventional art type product have the trend of fusion.Particularly while nowadays the projects such as intelligent grid, Smart Home is constantly pushed ahead, intelligent product development has been trend of the times.
Circuit breaker intellectuality is the work updated, and it relates to the technical progress and innovation development in a lot of field, needs more input and exploitation.
The low-voltage alternating-current sky applied in current family expenses or automatic machine room is opened only to has common overload, overvoltage, under-voltage and short-circuit protection and creepage protection function with earth leakage protective device; the electricity consumption situation of load equipment cannot be carried out effective tracing control in real time, namely cannot carry out remote monitoring.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides one can Real-time Collection load voltage, electric current, power and leakage current, and can realize the energy source terminal of Long-distance Control trip switch.
The technical solution adopted in the utility model is:
A circuit structure for intelligent low-pressure distribution terminal, it comprises master controller, temperature sensor, metering units, communication unit, power subsystem, current-voltage sampling unit, residual current protective unit and tripping coil; Power subsystem is electrically connected with master controller, communication unit and residual current protective unit respectively; temperature sensor, metering units are connected the input of master controller respectively with current-voltage sampling unit; residual current protective unit is electrically connected with master controller; the output of residual current protective unit connects tripping coil; communication unit is connected with master controller, and master controller is connected with host computer by communication unit.
The input of described current-voltage sampling unit is connected with load current collector and zero-sequence transformer.
Described communication unit is connected with an indicator light with power subsystem.
Described communication unit adopts RS485 agreement to connect host computer.
The utility model also comprises test switch, and described test switch connects residual current protective unit.
The utility model also comprises simulator, and described simulator connects master controller.
The utility model adopts above technical scheme, by the situation of change of all kinds of electric current and voltage in the real-time detection line of current-voltage sampling unit, the numerical value of master controller to all kinds of electric current and voltage judges, meet or exceed pre-set electric leakage, overload, short circuit, overvoltage, under-voltage protection value time, master controller exports to residual current protective unit order of threading off, residual current protective unit makes product thread off by the tripping coil be attached thereto, thus disjunction circuit; Master controller adopts RS485 protocol transmission to host computer by coupled communication unit fault type information simultaneously, controls fault message so that user understands and then makes corresponding process.On the other hand, temperature information also by the temperature variations of temperature sensor sense switch near contacts, and is transferred to host computer by communication unit by master controller, looks heat condition by host computer, decision making or process, avoiding product to damage because of long-term overheat.In addition the utility model is also provided with the relevant parameter such as voltage, electric current, active power in the real-time computational scheme of metering units.User reads by host computer and the leakage current value, current value, magnitude of voltage, contact temperature, realtime power etc. of displaying scene collection, and can further modify to earth leakage protective threshold values, voltage protection threshold values and current protection threshold values.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further details;
The systematic schematic diagram of the circuit structure of a kind of intelligent low-pressure distribution terminal of Fig. 1 the utility model.
Embodiment
As shown in Figure 1, the utility model comprises master controller, temperature sensor, metering units, communication unit, power subsystem, current-voltage sampling unit, residual current protective unit and tripping coil; Power subsystem is electrically connected with master controller, communication unit and residual current protective unit respectively; temperature sensor, metering units are connected the input of master controller respectively with current-voltage sampling unit; residual current protective unit is electrically connected with master controller; the output of residual current protective unit connects tripping coil; communication unit is connected with master controller, and master controller is connected with host computer by communication unit.
The input of described current-voltage sampling unit is connected with load current collector and zero-sequence transformer.
Described communication unit is connected with an indicator light with power subsystem.
Described communication unit adopts RS485 agreement to connect host computer.
The utility model also comprises test switch, and described test switch connects residual current protective unit, is convenient to user and checks residual current protective unit as required.
The utility model also comprises simulator, and described simulator connects master controller.
The utility model passes through the situation of change of all kinds of electric current and voltage in the real-time detection line of current-voltage sampling unit, the numerical value of master controller to all kinds of electric current and voltage judges, meet or exceed pre-set electric leakage, overload, short circuit, overvoltage, under-voltage protection value time, master controller exports to residual current protective unit order of threading off, residual current protective unit makes product thread off by the tripping coil be attached thereto, thus disjunction circuit; Master controller adopts RS485 to be transferred to host computer by coupled communication unit fault type information simultaneously, controls fault message so that user understands and then makes corresponding process.On the other hand, temperature information by the temperature variations of temperature sensor sense switch near contacts, and is transferred to host computer by communication unit by master controller, looks heat condition by host computer, decision making or process, avoiding product to damage because of long-term overheat.In addition the utility model is also provided with the relevant parameter such as voltage, electric current, active power in the real-time computational scheme of metering units.User reads by host computer and the leakage current value, current value, magnitude of voltage, contact temperature, realtime power etc. of displaying scene collection, and can further modify to earth leakage protective threshold values, voltage protection threshold values and current protection threshold values.
Claims (6)
1. a circuit structure for intelligent low-pressure distribution terminal, is characterized in that: it comprises master controller, temperature sensor, metering units, communication unit, power subsystem, current-voltage sampling unit, residual current protective unit and tripping coil; Power subsystem is respectively master controller, communication unit and residual current protective unit and powers; temperature sensor, metering units are connected the input of master controller respectively with current-voltage sampling unit; residual current protective unit is electrically connected with master controller; the output of residual current protective unit connects tripping coil; communication unit is connected with master controller, and master controller is connected with host computer by communication unit.
2. the circuit structure of a kind of intelligent low-pressure distribution terminal according to claim 1, is characterized in that: the input of described current-voltage sampling unit is connected with load current collector and zero-sequence transformer.
3. the circuit structure of a kind of intelligent low-pressure distribution terminal according to claim 1, is characterized in that: described communication unit is connected with an indicator light with power subsystem.
4. the circuit structure of a kind of intelligent low-pressure distribution terminal according to claim 1, is characterized in that: described communication unit adopts RS485 agreement to connect host computer.
5. the circuit structure of a kind of intelligent low-pressure distribution terminal according to claim 1, is characterized in that: it also comprises test switch, and described test switch connects residual current protective unit.
6. the circuit structure of a kind of intelligent low-pressure distribution terminal according to claim 1, is characterized in that: it also comprises simulator, and described simulator connects master controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520078119.0U CN204361791U (en) | 2015-02-04 | 2015-02-04 | A kind of circuit structure of intelligent low-pressure distribution terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520078119.0U CN204361791U (en) | 2015-02-04 | 2015-02-04 | A kind of circuit structure of intelligent low-pressure distribution terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204361791U true CN204361791U (en) | 2015-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201520078119.0U Expired - Fee Related CN204361791U (en) | 2015-02-04 | 2015-02-04 | A kind of circuit structure of intelligent low-pressure distribution terminal |
Country Status (1)
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| CN (1) | CN204361791U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160237A (en) * | 2016-09-13 | 2016-11-23 | 中国南方电网有限责任公司电网技术研究中心 | Power distribution terminal |
| CN106159892A (en) * | 2016-09-27 | 2016-11-23 | 吴文炤 | A kind of circuit structure of intelligent leakage circuit breaker |
| CN110365102A (en) * | 2018-03-26 | 2019-10-22 | 全球能源互联网研究院有限公司 | A kind of monitoring system and its monitoring method for high voltage DC breaker |
| WO2021098326A1 (en) * | 2019-11-18 | 2021-05-27 | 国网浙江省电力有限公司舟山供电公司 | Intelligent terminal power distribution system |
-
2015
- 2015-02-04 CN CN201520078119.0U patent/CN204361791U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160237A (en) * | 2016-09-13 | 2016-11-23 | 中国南方电网有限责任公司电网技术研究中心 | Power distribution terminal |
| CN106159892A (en) * | 2016-09-27 | 2016-11-23 | 吴文炤 | A kind of circuit structure of intelligent leakage circuit breaker |
| CN110365102A (en) * | 2018-03-26 | 2019-10-22 | 全球能源互联网研究院有限公司 | A kind of monitoring system and its monitoring method for high voltage DC breaker |
| CN110365102B (en) * | 2018-03-26 | 2022-07-05 | 全球能源互联网研究院有限公司 | Monitoring system and monitoring method for high-voltage direct-current circuit breaker |
| WO2021098326A1 (en) * | 2019-11-18 | 2021-05-27 | 国网浙江省电力有限公司舟山供电公司 | Intelligent terminal power distribution system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150527 Termination date: 20220204 |
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| CF01 | Termination of patent right due to non-payment of annual fee |