CN203289194U - Level raiser of wireless communication-based remote monitoring system of distribution transformer - Google Patents
Level raiser of wireless communication-based remote monitoring system of distribution transformer Download PDFInfo
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- CN203289194U CN203289194U CN2013203432578U CN201320343257U CN203289194U CN 203289194 U CN203289194 U CN 203289194U CN 2013203432578 U CN2013203432578 U CN 2013203432578U CN 201320343257 U CN201320343257 U CN 201320343257U CN 203289194 U CN203289194 U CN 203289194U
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- resistance
- operational amplifier
- resistor
- signal input
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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Abstract
The utility model discloses a level raiser of a wireless communication-based remote monitoring system of a distribution transformer. The level raiser comprises an acquired signal input line (1), a superposed signal input line (2), a first resistor (R1), a second resistor (R2), a fifth resistor (R5) and a first operational amplifier (A1), wherein two ends of the second resistor (R2) are respectively connected with the non inverting input terminals of the acquired signal input line (1) and the first operational amplifier (A1), one end of the first resistor (R1) is connected on a line between the non inverting input terminals of the second resistor (R2) and the first operational amplifier (A1), the other end of the first resistor (R1) is connected with the superposed signal input line (2), one end of the fifth resistor (R5) is connected with an output terminal of the first operational amplifier (A1), and the other end of the fifth resistor (R5) is connected with a signal output line (3). With the adoption of the abovementioned structure, the level raiser requires a few components, is low in cost and easy to achieve, can raise a signal in the positive section, and can help a controller to carry out subsequent processing.
Description
Technical field
The utility model relates to the auxiliary system of distribution transformer, specifically based on the level lifter of the distribution transformer long distance control system of radio communication.
Background technology
Along with industrial expansion, all trades and professions improve day by day to the power supply reliability of electric power system and the requirement of stability, distribution transformer is as the core link of electric power system, and it is electric energy directly to be distributed to the power equipment of low-voltage customer, and its service data is the basic data of whole power distribution network.Therefore, the safe operation of distribution transformer is most important to electric power system.For distribution transformer is monitored, existing distribution power transformation device generally is equipped with the supervisory control system based on radio communication, supervisory control system is usually carried out analyzing and processing by voltage or the current signal that instrument transformer obtains distribution transformer, and then realizes the remote monitoring to distribution power transformation device.Single-chip microcomputer is with low cost, the controller of existing distribution power transformation device supervisory control system often adopts chip microcontroller, but when the signal of telecommunication that distribution power transformation device supervisory control system is obtained distribution transformer by instrument transformer is realized monitoring, there is positive negative characteristic in the AC signal of instrument transformer secondary output, and the analog-to-digital conversion module in existing single-chip microcomputer generally can only be processed the forward signal of telecommunication, existing distribution power transformation device supervisory control system is usually set up complicated circuit and is realized instrument transformer and single-chip microcomputer compatibility, and this has increased the cost of distribution power transformation device supervisory control system on the contrary.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of level lifter of the long distance control system of the distribution transformer based on radio communication is provided, it is simple in structure, the use element is few, cost is low, and the signal boost that instrument transformer can be obtained is in positive interval, so be convenient to controller that in distribution power transformation device supervisory control system, single-chip microcomputer forms to signal mode number conversion carry out the processing of postorder.
The purpose of this utility model is achieved through the following technical solutions: based on the level lifter of the distribution transformer long distance control system of radio communication, comprise collection signal input line, superposed signal input line, the first resistance, the second resistance, the 5th resistance and the first operational amplifier, described the second resistance two ends respectively with the collection signal input line be connected the operational amplifier in-phase input end and be connected, described the first resistance one end is connected on circuit between the second resistance and the first operational amplifier in-phase input end, and its other end is connected with the superposed signal input line; Described the 5th resistance one end is connected with the first operational amplifier output terminal, and its other end is connected with output line.During the utility model application, the collection signal input line is used for receiving the signal that instrument transformer collects, and the superposed signal input line is used for the direct current signal of input stack, and output line is used for rising to the signal output in positive interval.
The first operational amplifier of the present utility model both can adopt common source with other element in supervisory control system, also can adopt independent current source, for the ease of independent, controls power supply, and as preferably, described the first operational amplifier is connected with power supply.
Level lifter based on the distribution transformer long distance control system of radio communication, also comprise the 4th resistance, and described the 4th resistance two ends are connected with output with the first operational amplifier inverting input respectively.
Level lifter based on the distribution transformer long distance control system of radio communication, also comprise the 3rd resistance, and described the 3rd resistance one end is connected with the first operational amplifier inverting input, its other end ground connection.
As preferably, the resistance of described the first resistance, the second resistance, the 3rd resistance and the 4th resistance is identical.
compared with prior art, the utlity model has following beneficial effect: the utility model comprises the collection signal input line, the superposed signal input line, the first resistance, the second resistance, the 5th resistance and the first operational amplifier, the signal that is obtained by collection signal input line input instrument transformer during the utility model application, and by the direct current signal of the required stack of superposed signal input line input, generate the signal that is positioned at positive interval after the first operational amplifier overlap-add procedure, the controller of the distribution transformer supervisory control system that this signal consists of output line input single-chip microcomputer, and then can be by carrying out the processing of postorder after analog-to-digital conversion module converts in single-chip microcomputer, the utility model uses element few while realizing instrument transformer and single-chip microcomputer compatibility, and cost is low, and then the cost of distribution power transformation device supervisory control system is reduced.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
In accompanying drawing, the corresponding name of Reference numeral is called: 1, collection signal input line, 2, the superposed signal input line, 3, output line, R1, the first resistance, R2, the second resistance, R3, the 3rd resistance, R4, the 4th resistance, R5, the 5th resistance, VCC, power supply, A1, the first operational amplifier.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but execution mode of the present utility model is not limited to this.
Embodiment
As shown in Figure 1, level lifter based on the distribution transformer long distance control system of radio communication, comprise collection signal input line 1, superposed signal input line 2, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5 and the first operational amplifier A 1, wherein, the first operational amplifier A 1 is connected with power supply VCC and is provided with ground path.The second resistance R 2 two ends respectively with collection signal input line 1 be connected operational amplifier A 1 in-phase input end and be connected, the first resistance R 1 one ends are connected on circuit between the second resistance R 2 and the first operational amplifier A 1 in-phase input end, and its other end is connected with superposed signal input line 2; The 5th resistance R 5 one ends are connected with the first operational amplifier A 1 output, and its other end is connected with output line 3.
The 4th resistance R 4 two ends are connected with output with the first operational amplifier A 1 inverting input respectively, and the 3rd resistance R 3 one ends are connected with the first operational amplifier A 1 inverting input, its other end ground connection.As preferably, the resistance of the first resistance R 1, the second resistance R 2, the 3rd resistance R 3 and the 4th resistance R 4 four is identical.
During the present embodiment application, collection signal input line 1 connects instrument transformer and inputs the signal that instrument transformer collects, superposed signal input line 2 is used for the dc current signal of input stack, the signal of collection signal input line 1 and 2 both inputs of superposed signal input line is by output line 3 outputs after the first operational amplifier A 1 is processed, and the present embodiment guarantees that by the signal of controlling 2 inputs of superposed signal input line the signal waveform of output line 3 outputs is in positive interval.
Above content is the further description of the utility model being done in conjunction with concrete preferred implementation, can not assert that embodiment of the present utility model is confined to these explanations., for the utility model person of an ordinary skill in the technical field,, not breaking away from other execution modes that draw under the technical solution of the utility model, all should be included in protection range of the present utility model.
Claims (5)
1. based on the level lifter of the distribution transformer long distance control system of radio communication, it is characterized in that: comprise collection signal input line (1), superposed signal input line (2), the first resistance (R1), the second resistance (R2), the 5th resistance (R5) and the first operational amplifier (A1), described the second resistance (R2) two ends respectively with collection signal input line (1) be connected operational amplifier (A1) in-phase input end and be connected, described the first resistance (R1) end is connected on circuit between the second resistance (R2) and the first operational amplifier (A1) in-phase input end, its other end is connected with superposed signal input line (2), described the 5th resistance (R5) end is connected with the first operational amplifier (A1) output, and its other end is connected with output line (3).
2. the level lifter of the long distance control system of the distribution transformer based on radio communication according to claim 1, it is characterized in that: described the first operational amplifier (A1) is connected with power supply (VCC).
3. the level lifter of the long distance control system of the distribution transformer based on radio communication according to claim 1 and 2, it is characterized in that: also comprise the 4th resistance (R4), described the 4th resistance (R4) two ends are connected with output with the first operational amplifier (A1) inverting input respectively.
4. the level lifter of the long distance control system of the distribution transformer based on radio communication according to claim 3, it is characterized in that: also comprise the 3rd resistance (R3), described the 3rd resistance (R3) end is connected with the first operational amplifier (A1) inverting input, its other end ground connection.
5. the level lifter of the long distance control system of the distribution transformer based on radio communication according to claim 4, it is characterized in that: the resistance of described the first resistance (R1), the second resistance (R2), the 3rd resistance (R3) and the 4th resistance (R4) is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203432578U CN203289194U (en) | 2013-06-17 | 2013-06-17 | Level raiser of wireless communication-based remote monitoring system of distribution transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203432578U CN203289194U (en) | 2013-06-17 | 2013-06-17 | Level raiser of wireless communication-based remote monitoring system of distribution transformer |
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| Publication Number | Publication Date |
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| CN203289194U true CN203289194U (en) | 2013-11-13 |
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| CN2013203432578U Expired - Fee Related CN203289194U (en) | 2013-06-17 | 2013-06-17 | Level raiser of wireless communication-based remote monitoring system of distribution transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346772A (en) * | 2013-06-17 | 2013-10-09 | 成都荣耀科技有限公司 | Electric level boosting circuit used for remote monitoring system of distribution transformer |
-
2013
- 2013-06-17 CN CN2013203432578U patent/CN203289194U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346772A (en) * | 2013-06-17 | 2013-10-09 | 成都荣耀科技有限公司 | Electric level boosting circuit used for remote monitoring system of distribution transformer |
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| 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: 20131113 Termination date: 20140617 |
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| EXPY | Termination of patent right or utility model |