CN205027833U - Power transformer remote monitoring device - Google Patents
Power transformer remote monitoring device Download PDFInfo
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- CN205027833U CN205027833U CN201520733199.9U CN201520733199U CN205027833U CN 205027833 U CN205027833 U CN 205027833U CN 201520733199 U CN201520733199 U CN 201520733199U CN 205027833 U CN205027833 U CN 205027833U
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- power transformer
- microprocessor controller
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 19
- 238000004891 communication Methods 0.000 claims abstract description 15
- 238000005070 sampling Methods 0.000 claims abstract description 14
- 238000012544 monitoring process Methods 0.000 abstract description 6
- 230000006399 behavior Effects 0.000 abstract 1
- 230000006870 function Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000004556 brain Anatomy 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model provides a power transformer remote monitoring device, include: current -voltage sampling unit, electric energy metering unit, microprocessor controller, display screen, data memory, communication output interface, load control ware and electrical unit, current -voltage sampling unit's input termination power transformer's output, this current -voltage sampling unit output passes through electric energy metering unit and microprocessor controller are connected, microprocessor controller connects display screen, data memory, communication output interface respectively, microprocessor controller passes through the load control ware and connects load master switch - the intelligent circuit breaker that sets up at the power transformer output. The utility model discloses electric quantity data that can real -time supervision power transformer to regularly preserve, can carry out real -time, incessant monitoring and record operating information to the behavior at the line transformer, electric quantity parameter, can cut off and set for the load that overloads.
Description
Technical field
The utility model relates to a kind of electric power network watch-dog, especially a kind of electrical parameter monitoring device on-the-spot operating transformer operating mode being carried out to at-once monitor operational parameter, data record and telecommunication.
Background technology
Power transformer is the visual plant in network system, and around-the-clock long-time running is significant to the security of electric system, reliability.Modern electric conveying, electric energy metrical, power communication and power scheduling are more and more higher to power system security, requirement that is reliable, accurate and economical operation.In order to strengthen grasping the understanding of substation transformer working condition each in electric power network system, electric company needs a kind of easy power transformer remote monitoring device of exploitation, to carrying out real-time, continual monitoring and record operation information at the working condition of line transformer, electrical parameter.
Summary of the invention
For the deficiencies in the prior art, the utility model provides a kind of power transformer remote monitoring device, and the real time data being applicable to a large amount of medium and small each power transformer electrical parameter in operation of power networks is measured, records and preserved.Managerial personnel by palm machine or notebook computer to scene from this monitoring device downloads historical data, typing PC is checked and is analyzed, and carries out monitoring, protection and adjustment to power transformer operation conditions.The technical solution adopted in the utility model is:
A kind of power transformer remote monitoring device, comprising: current-voltage sampling unit, electric energy metrical unit, microprocessor controller, display screen, data-carrier store, communication output interface, load controller and power supply unit;
The output terminal of the input termination power transformer of current-voltage sampling unit, this current-voltage sampling unit output terminal is connected with microprocessor controller by described electric energy metrical unit; Microprocessor controller connects display screen, data-carrier store, communication output interface respectively; Microprocessor controller connects the load master switch-intelligent breaker being arranged on power transformer output terminal by load controller.
Particularly, described load controller comprises resistance R1, R2, R3, R4, relay K A1, diode D1 and NPN triode Q1; An I/O port of microprocessor controller connects the base stage of triode Q1 and one end of resistance R2 by resistance R1; The emitter of triode Q1 and the other end ground connection of resistance R2; The collector of triode Q1 connects anode and relay K A1 coil one end of diode D1; The negative electrode of diode D1 and one end of relay K A1 coil other end connecting resistance R3 and R4, another termination positive voltage of resistance R3 and R4; The normally opened contact of relay K A1 connects the load master switch-intelligent breaker being arranged on power transformer output terminal.
Further, the output interface that communicates adopts WiFi wave point and/or RS-485 wireline interface.
Further, described power transformer remote monitoring device, also comprises: the pulse output interface of a connection microprocessor controller, the digital pulse signal for exporting electric energy metrical carries out the calibration of equipment precision.
The utility model has the advantage of: can the electric quantity data of Real-Time Monitoring power transformer, and timing is preserved, to can carry out real-time, continual monitoring and record operation information at the working condition of line transformer, electrical parameter.
Possess certain automatic protection functions, automatically can cut off the load master switch of its output terminal under power transformer overload situations.
Accompanying drawing explanation
Fig. 1 is electric theory diagram of the present utility model.
Fig. 2 is load controller electrical schematic diagram of the present utility model.
Embodiment
Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.
The power transformer remote monitoring device that the utility model proposes, as shown in Figure 1, comprise: current-voltage sampling unit, electric energy metrical unit, microprocessor controller, display screen, data-carrier store, communication output interface, load controller and power supply unit, and a pulse output interface;
The output terminal of the input termination power transformer of current-voltage sampling unit, this current-voltage sampling unit output terminal is connected with microprocessor controller by described electric energy metrical unit; Microprocessor controller connects display screen, data-carrier store, communication output interface and pulse output interface respectively; Microprocessor controller connects the load master switch being arranged on power transformer output terminal by load controller; Power supply unit is used for the energize portions needing in this monitoring device to power.
Communication output interface can adopt WiFi wave point and/or RS-485 wireline interface, for connecting PC, notebook computer or palm PC.
Current-voltage sampling unit is connected on the output terminal of power transformer in electrical network, sampling obtains electric current and voltage signal, input electric energy metrical unit, the electric quantity signal that transformer exports is become different digital pulse signals respectively and delivers to microprocessor controller, after microprocessor data process, part data memory input stores, and the history data store arranging particular moment, investigates for Utilities Electric Co..A part is passed to LCDs, demonstrates real-time electrical parameter value intuitively by liquid crystal display, reads show for user.
LCDs instruction A, B, C three-phase voltage and electric current real time data, show A, B, C three-phase realtime power and general power simultaneously.There is the parameter automatic wheel display functions such as year, month, day, hour, min, second and A, B, C three-phase voltage, three-phase current, three phase power and general power.The parameter that wheel is aobvious and time can be arranged as required.Power transformer remote monitoring device to the three-phase voltage of Real-Time Monitoring, electric current and aggregate power parameters per hour measure on schedule and record freeze once, priority temporally stores the historical record data of up-to-date 6 months.Device has an independently RS-485 interface, PC and palm PC (palmtop computer) can carry out storage data communication by this RS-485 communication interface and this monitoring device.Electrical isolation is carried out in RS-485 communication interface and this monitoring device inside, and has anti-lightning strike function.
The principle of load controller is shown in Fig. 2, comprises resistance R1, R2, R3, R4, relay K A1, diode D1 and NPN triode Q1; An I/O port of microprocessor controller connects the base stage of triode Q1 and one end of resistance R2 by resistance R1; The emitter of triode Q1 and the other end ground connection of resistance R2; The collector of triode Q1 connects anode and relay K A1 coil one end of diode D1; The negative electrode of diode D1 and one end of relay K A1 coil other end connecting resistance R3 and R4, another termination positive voltage of resistance R3 and R4; The normally opened contact of relay K A1 connects the load master switch being arranged on power transformer output terminal, the control coil of concrete connected load master switch.
Microprocessor controller can need the electric quantity data controlled to process to some; the ultimate value set with user compares; if exceed the ultimate value of setting; then disconnected the load master switch-intelligent breaker of power transformer output terminal by load controller, reach the object of protection power transformer.
In a specific embodiment, microprocessor controller is to each phase voltage of power transformer, each phase current, each phase power, and general power is all monitored, if wherein any one electric quantity data transfinites, and over-limit condition 2 minutes, then microprocessor controller exports a low level signal, makes relay K A1 coil losing electricity, the normally opened contact of relay K A1 disconnects, thus disconnects the load master switch of power transformer output terminal.
User can also carry out data communication by the dynamo-electric brain of palm and this power transformer remote monitoring device, collects and records out the history electric quantity data of storage, is supplied to management of power use department and investigates and monitor, and carry out management and running.
Pulse output interface, for exporting the digital pulse signal of electric energy metrical, can verify electric energy metrical unit for outside calibration equipment, ensures metering accuracy and the precision of electric energy metrical unit.
Claims (4)
1. a power transformer remote monitoring device, is characterized in that, comprising:
Current-voltage sampling unit, electric energy metrical unit, microprocessor controller, display screen, data-carrier store, communication output interface, load controller and power supply unit;
The output terminal of the input termination power transformer of current-voltage sampling unit, this current-voltage sampling unit output terminal is connected with microprocessor controller by described electric energy metrical unit; Microprocessor controller connects display screen, data-carrier store, communication output interface respectively; Microprocessor controller connects the load master switch being arranged on power transformer output terminal by load controller.
2. power transformer remote monitoring device as claimed in claim 1, is characterized in that:
Described load controller comprises resistance R1, R2, R3, R4, relay K A1, diode D1 and NPN triode Q1; An I/O port of microprocessor controller connects the base stage of triode Q1 and one end of resistance R2 by resistance R1; The emitter of triode Q1 and the other end ground connection of resistance R2; The collector of triode Q1 connects anode and relay K A1 coil one end of diode D1; The negative electrode of diode D1 and one end of relay K A1 coil other end connecting resistance R3 and R4, another termination positive voltage of resistance R3 and R4; The normally opened contact of relay K A1 connects the load master switch being arranged on power transformer output terminal.
3. power transformer remote monitoring device as claimed in claim 1, is characterized in that:
Communication output interface adopts WiFi wave point and/or RS-485 wireline interface.
4. power transformer remote monitoring device as claimed in claim 1, is characterized in that:
Also comprise the pulse output interface that connects microprocessor controller, the digital pulse signal for exporting electric energy metrical carries out the calibration of precision.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520733199.9U CN205027833U (en) | 2015-09-21 | 2015-09-21 | Power transformer remote monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520733199.9U CN205027833U (en) | 2015-09-21 | 2015-09-21 | Power transformer remote monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205027833U true CN205027833U (en) | 2016-02-10 |
Family
ID=55260355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520733199.9U Expired - Fee Related CN205027833U (en) | 2015-09-21 | 2015-09-21 | Power transformer remote monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205027833U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105629796A (en) * | 2016-03-21 | 2016-06-01 | 广东美的暖通设备有限公司 | Intelligent gateway and multi-connected machine control system |
-
2015
- 2015-09-21 CN CN201520733199.9U patent/CN205027833U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105629796A (en) * | 2016-03-21 | 2016-06-01 | 广东美的暖通设备有限公司 | Intelligent gateway and multi-connected machine control 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160210 Termination date: 20200921 |