CN204832141U - Trouble gas content electron monitor in transformer buchholz relay - Google Patents
Trouble gas content electron monitor in transformer buchholz relay Download PDFInfo
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- CN204832141U CN204832141U CN201520538047.3U CN201520538047U CN204832141U CN 204832141 U CN204832141 U CN 204832141U CN 201520538047 U CN201520538047 U CN 201520538047U CN 204832141 U CN204832141 U CN 204832141U
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Abstract
The utility model belongs to the technical field of the transformer, in particular to trouble gas content electron monitor in transformer buchholz relay. This trouble gas content electron monitor in transformer buchholz relay, including buchholz relay, characterized by: be equipped with gas sensor in the buchholz relay, gas sensor connects microprocessor, and microprocessor connects the contact that is used for the alarm output signal through electronic relay. The beneficial effects of the utility model are that: but the trouble gas content that real -time analysis gathered sends trouble gas content increase early warning, excess warning equisignal as required, realize the networking communication of monitoring data, made things convenient for transformer centralized monitoring, it is small, the precision is high, the interference killing feature is strong, low power dissipation, convenient operation, reached trouble gas content in the long -range real -time supervision buchholz relay, in time discover the purpose of the inside trouble that probably appears of transformer.
Description
(1) technical field
The utility model belongs to transformer technology field, particularly a kind of Transformer Gas Relay internal fault gas content electronic monitor.
(2) background technology
When there is the faults such as turn-to-turn and layer short circuit, iron core fault, inside pipe casing fault, winding inside broken string and insulation degradation, shunting switch loose contact or wire bonds be bad in the inside of oil-filled transformer, due to electric arc, insulating material decomposed and produce some gases, its failure gas content is different with the order of severity difference of fault.Gas relay is exactly utilize failure gas state to protect the main element of power transformer interior fault.When inside transformer generation minor failure, the gas of generation rises and first lodges in the upper space in gas relay, and the junction closure when gas reaches a certain amount of, sends signal, plays the effect of protection transformer.This traditional fault-signal mode, can only fault occur after send warning or guard signal, can not on-line real time monitoring fault produce whole process, be difficult to play the effect effectively preventing fault from worsening further.Etc. when sending warning or guard signal, possible breakdown is comparatively serious, brings hidden danger to the safe operation of transformer.In addition, this signal also may send under the interference of some extraneous factor (as earthquake) by mistake, and this traditional approach can not realize compunication, be difficult to realize remote monitoring, can not meet the needs that transformer safety running status is understood, monitoring is in real time concentrated in intelligent grid development requirement to equipment can not have been adapted to.
(3) summary of the invention
The utility model in order to make up the deficiencies in the prior art, provide that a kind of volume is little, precision is high, antijamming capability is strong, low in energy consumption, easy to operate, can the Transformer Gas Relay internal fault gas content electronic monitor of remote real time monitoring failure gas content.
The utility model is achieved by the following technical solution:
A kind of Transformer Gas Relay internal fault gas content electronic monitor, comprise gas relay, it is characterized in that: be provided with gas sensor in described gas relay, gas sensor connects microprocessor, and microprocessor connects the contact being used for output alarm signal by electronic relay.
Described microprocessor connects RS485 communication interface by communication system.
Described gas sensor is connected with the A/D converter of microprocessor by signal conditioning circuit.
Described microprocessor is connected with LED display panel.
Described microprocessor is connected with power supply.
The beneficial effects of the utility model are: can the failure gas content that collects of real-time analysis, send failure gas content as required and increase the signal such as early warning, excess warning; Achieve the connected network communication of Monitoring Data, facilitate transformer Centralized Monitoring, volume is little, precision is high, antijamming capability is strong, low in energy consumption, easy to operate, reach remote real time monitoring gas relay internal fault gas content, the object of fault that Timeliness coverage inside transformer may occur.
(4) accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing 1 is structured flowchart of the present utility model;
Accompanying drawing 2 is failure gas cont signal measuring principle circuit diagram of the present utility model;
(5) embodiment
Accompanying drawing is a kind of specific embodiment of the present utility model.This embodiment comprises gas relay, is provided with gas sensor in gas relay, and gas sensor connects microprocessor, and microprocessor connects the contact being used for output alarm signal by electronic relay.Microprocessor connects RS485 communication interface by communication system.Gas sensor is connected with the A/D converter of microprocessor by signal conditioning circuit.Microprocessor is connected with LED display panel.Microprocessor is connected with power supply.
Adopt a kind of Transformer Gas Relay internal fault gas content electronic monitor of the present utility model, carrier catalyst element is adopted to be gas detecting element and gas sensor, produce a faint analog voltage signal proportional with transformer failure gas (gas) content, amplify through signal conditioning circuit, an output signal is produced after shaping, in the sheet of feeding microprocessor (digital signal processor DSP), A/D converter (analog/digital) changes input port, this analog signals is converted to digital signal, then DSP processes this signal, analytical calculation transformer failure gas (gas) content, realize display, report to the police, the functions such as communication.The LED display panel of electronic monitor can show gas bearing capacity in real time, early warning value is set, real time data and warning message can be sent to pulpit by RS485 communication interface, realize remote monitoring.
Adopt a kind of Transformer Gas Relay internal fault gas content electronic monitor of the present utility model, microprocessor adopts TMS320LF2407A, it is specially for 16 bit DSP chips of monitoring field application, there is igh-speed wire-rod production line and the necessary architecture of digital control function, its instruction execution speed is up to 40MIPS, and the instruction of the overwhelming majority can be finished within the monocycle of a 25ns, be conducive to carrying out analytical calculation to transformer failure gas (gas) content.In addition, it also has I/O(I/O in very powerful sheet) port and other peripherals, simplify electronic monitor periphery circuit design, reduce system cost.TMS320LF2407A integrates A/D, program storage, data-carrier store, communication controler, thus, the Transformer Gas Relay internal fault gas content electronic monitor of the utility model design has the advantages that volume is little, antijamming capability is strong, can the temperature environment of long-term work in strong electromagnetic interference environment and-45 ~+80 such as transformers DEG C.
Adopting a kind of Transformer Gas Relay internal fault gas content electronic monitor of the present utility model, take DSP as core, processes the data gathered, sets warning prevalue etc.Transformer Gas Relay internal fault gas content electronic monitor is by gas sensor, signal conditioning circuit, DSP, LED(charactron) display module, alarm output module and communication interface modules and power module etc. form.The gas sensor gathering gas relay internal fault gas produces a faint analog voltage signal proportional with gas bearing capacity, an output signal is produced after signal conditioning circuit amplification, shaping, send into dsp chip, DSP carries out A/D conversion process to this signal, analytical calculation transformer failure gas (gas) content, realizes the functions such as display, warning, communication.
Adopt a kind of Transformer Gas Relay internal fault gas content electronic monitor of the present utility model, amplify the voltage signal after shaping through Signal-regulated kinase and convert digital signal to by the inner A/D modular converter of dsp chip, DSP carries out data processing according to the relation between failure gas content and voltage signal values.Simultaneously DSP calls that LED shows subfunction, early warning value arranges subfunction and communicator function respectively, the function such as realize the display of gas content electronic monitor, warning and communicate.
Adopt a kind of Transformer Gas Relay internal fault gas content electronic monitor of the present utility model, as Fig. 2, packaged gas sensor has 6 needle-like pins, and wherein 4 (1,3,4,6) take out for signal, and 2 (2,5) are for providing heating current.
Claims (5)
1. a Transformer Gas Relay internal fault gas content electronic monitor, comprise gas relay, be provided with gas sensor in gas relay, gas sensor connects microprocessor, and microprocessor connects the contact being used for output alarm signal by electronic relay.
2. a kind of Transformer Gas Relay internal fault gas content electronic monitor according to claim 1, is characterized in that: described microprocessor connects RS485 communication interface by communication system.
3. a kind of Transformer Gas Relay internal fault gas content electronic monitor according to claim 1, is characterized in that: described gas sensor is connected with the A/D converter of microprocessor by signal conditioning circuit.
4. a kind of Transformer Gas Relay internal fault gas content electronic monitor according to claim 1, is characterized in that: described microprocessor is connected with LED display panel.
5. a kind of Transformer Gas Relay internal fault gas content electronic monitor according to claim 1, is characterized in that: described microprocessor is connected with power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520538047.3U CN204832141U (en) | 2015-07-23 | 2015-07-23 | Trouble gas content electron monitor in transformer buchholz relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520538047.3U CN204832141U (en) | 2015-07-23 | 2015-07-23 | Trouble gas content electron monitor in transformer buchholz relay |
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| CN204832141U true CN204832141U (en) | 2015-12-02 |
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| CN201520538047.3U Active CN204832141U (en) | 2015-07-23 | 2015-07-23 | Trouble gas content electron monitor in transformer buchholz relay |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104977391A (en) * | 2015-07-23 | 2015-10-14 | 山东达驰电气有限公司 | Electronic monitor for content of fault gas in transformer gas relay |
-
2015
- 2015-07-23 CN CN201520538047.3U patent/CN204832141U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104977391A (en) * | 2015-07-23 | 2015-10-14 | 山东达驰电气有限公司 | Electronic monitor for content of fault gas in transformer gas relay |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20200806 Granted publication date: 20151202 |
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| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20200821 Granted publication date: 20151202 |