CN2678231Y - Monitoring device of low-voltage distribution system - Google Patents
Monitoring device of low-voltage distribution system Download PDFInfo
- Publication number
- CN2678231Y CN2678231Y CN 03225755 CN03225755U CN2678231Y CN 2678231 Y CN2678231 Y CN 2678231Y CN 03225755 CN03225755 CN 03225755 CN 03225755 U CN03225755 U CN 03225755U CN 2678231 Y CN2678231 Y CN 2678231Y
- Authority
- CN
- China
- Prior art keywords
- low
- model
- utility
- distribution system
- voltage distribution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model is composed of a plurality of monitoring variate collecting devices, a converter converting analogue signals to digital signals, a central programmable controller and a display or an output device. The utility model has the advantages that the utility model with compact volume, convenient connection and complete system functions can be arranged in a low-voltage distributing cabinet and can satisfy various running monitoring requirements of a low-voltage distribution system; the utility model with simple operation can be operated by persons without computer knowledge due to the adoption of a touch screen for object oriented operation with strong visualizability and easy control; the utility model has low cost and high market potential due to simple structure and the adoption of universal fittings.
Description
Technical field
The utility model relates to a kind of supervising device of low-voltage distribution system.
Background technology
At present, existing on the market distributing monitoring system mostly is safe operation large-scale, high tension distribution system and designs, and its internal structure complexity, monitoring are comprehensively, cost is very expensive.Then comparatively rare for small low-voltage distribution system supervising device.
Summary of the invention
The purpose of this utility model is to provide a kind of supervising device of LV Distribution Monitoring System, its volume is little, assembling flexibly, very suitable mini engineering uses.
The utility model is that the transducer of digital signal, central programmable controller and demonstration or output device are formed by some monitored variable harvesters, analog signal conversion.
The harvester of described some monitored variable can be current transformer, voltage transformer and temperature sensor.Described analog signal conversion is that the transducer of digital signal can adopt A/D converter.Described demonstration or output device can be computer monitor, touch-screen or printer, tape recorder etc.
The utlity model has following advantage, at first volume is small and exquisite, can be installed on low-voltage distribution cabinet inside, easy-to-connect, and systemic-function is complete, can satisfy the various demands of low-voltage distribution system operation monitoring; Secondly simple to operate, owing to adopt touch screen panel to Object Operations, intuitive is strong, grasps easily, and the personnel that do not possess computer literacy also can operate; Last because the utility model is simple in structure, adopt universal accessories, thus with low cost, have very high market potential.
The utility model is described in further detail below in conjunction with accompanying drawing:
Description of drawings
Fig. 1 is the structural representation that the utility model is formed;
Embodiment
As shown in Figure 1, the utility model is made up of the harvester of some monitored variable, transducer, central programmable controller and demonstration or the output device that analog signal conversion is digital signal.The harvester of wherein said some monitored variable can be current transformer, voltage transformer and temperature sensor.Current transformer is used for the three-phase input ac voltage of measurement circuitry, and voltage transformer is used for the three-phase input current of measurement circuitry, and temperature sensor is used for the temperature of measurement circuitry.Described analog signal conversion is that the transducer of digital signal can adopt A/D converter.Voltage transmitter, current transducer and temperature transmitter are imported the transducer that analog signal conversion is a digital signal with analog signal, the analog input amount is converted into digital output, deliver in the central programmable controller, result of calculation is sent to after as calculated and shows or output device.
Workflow when the utility model is implemented is as follows: at first measure magnitude of voltage, current value and temperature value in the circuit by voltage transformer, current transformer and temperature sensor, through transmitter magnitude of voltage, current value and temperature value are converted into corresponding analog signal again, then analog signal is converted into digital signal by A/D converter, import central programmable controller, as calculated result of calculation is sent to demonstration or output device, described demonstration or output device can be computer monitor, touch-screen or printer, tape recorder etc.
Liquid crystal touch screen is provided with level Four menu, actions menu, system mode menu, parameter display menu and annunciator menu.Actions menu mainly shows the prompting whether homepage and operation stop.In System menu, can demonstrate the state of multiloop switch closure or disconnection in detail.In the parameter display menu, can demonstrate the temperature value in each loop, the voltage and current in each loop etc. in detail, the time that can also select to measure is determined observation cycle.In annunciator menu, but the relevant warning value of initialization system voltage, electric current and temperature at first.When system was observed each loop according to the time of appointment, if when the data of measuring surpass warning value, system was that jingle bell is reported to the police to remind the staff to note the operation conditions of low-voltage distribution system.Utilize the native system can be to the indication of reporting to the police of faults such as the voltage decompression of whole distribution system, busbar temperature overtemperature, each road load overload, send alarm control signal, fault print signal, and can print time, the parameter that fault takes place, for staff's examination and repair system provides the data support.
Claims (4)
1, a kind of low-voltage distribution system supervising device, it is characterized in that the harvester of described this device by some monitored variable, analog signal conversion is the transducer of digital signal, central authorities' programmable controller and demonstration or output device are formed, the harvester of described some monitored variable is arranged at the device front end, send the analog signal of gathering to connected described transducer, transducer is to send connected central programmable controller to after the digital signal with analog signal conversion, and described central programmable controller transmits connected demonstration or output device with result.
2, low-voltage distribution system supervising device according to claim 1 is characterized in that the harvester of described some monitored variable can be current transformer, voltage transformer and temperature sensor.
3, low-voltage distribution system supervising device according to claim 1 is characterized in that described analog signal conversion is that the transducer of digital signal can adopt A/D converter.
4, low-voltage distribution system supervising device according to claim 1 is characterized in that described demonstration or output device can be computer monitor, touch-screen, printer, tape recorder etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03225755 CN2678231Y (en) | 2003-05-06 | 2003-05-06 | Monitoring device of low-voltage distribution system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03225755 CN2678231Y (en) | 2003-05-06 | 2003-05-06 | Monitoring device of low-voltage distribution system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2678231Y true CN2678231Y (en) | 2005-02-09 |
Family
ID=34580297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03225755 Expired - Fee Related CN2678231Y (en) | 2003-05-06 | 2003-05-06 | Monitoring device of low-voltage distribution system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2678231Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104269925A (en) * | 2014-09-22 | 2015-01-07 | 广州供电局有限公司 | Power transmission line dynamic capacity increase temperature monitoring system and method |
-
2003
- 2003-05-06 CN CN 03225755 patent/CN2678231Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104269925A (en) * | 2014-09-22 | 2015-01-07 | 广州供电局有限公司 | Power transmission line dynamic capacity increase temperature monitoring system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |