CN205120672U - Transformer oil gas on -line monitoring device - Google Patents
Transformer oil gas on -line monitoring device Download PDFInfo
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- CN205120672U CN205120672U CN201520909885.7U CN201520909885U CN205120672U CN 205120672 U CN205120672 U CN 205120672U CN 201520909885 U CN201520909885 U CN 201520909885U CN 205120672 U CN205120672 U CN 205120672U
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- carrier gas
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- main frame
- monitoring main
- transformer oil
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model discloses a transformer oil gas on -line monitoring device, it includes monitoring host computer (1), monitoring host computer (1) is connected with carrier gas controlling means (2), the gas outlet of carrier gas bottle (3) is connected to the air inlet of carrier gas controlling means (2), the carrier gas pressure signal export of carrier gas controlling means (2) is connected with monitoring host computer's (1) carrier gas pressure signal input port (1 -1) through signal cable (4), the carrier gas export of carrier gas controlling means (2) is connected through pneumatic circuit (5) and monitoring host computer's (1) carrier gas entry (1 -13), the utility model provides a high precision, low cost and necessary monitoring are in order to keep quick response, and it mainly detects the early transformer defect that takes place when the fibre degradation. It makes the test result from start to finish keep reliable measurement accuracy through the automatic dynamic calibration of error to can reach the minimum detection limit in industry field. (U /)
Description
Technical field
The utility model belongs to substation transformer application apparatus technical field, particularly relates to a kind of transformer oil gas on-Line Monitor Device.
Background technology
The transformer of transformer station is in operation, and the integrity of insulation is very crucial, and the excessive and transformer of humidity is overheated is cause irremediable two main causes of transformer insulated deterioration.And transformer is before breaking down, under the effect of electricity, thermal effect, multiple gases can be separated out in its inside, therefore, exploitation one can the accurately and continuous gas such as monitoring hydrogen, carbon monoxide, methane, acetylene, ethene, ethane, carbon dioxide, oxygen, nitrogen, stage finds the defect that transformer is potential in early days, thus the monitoring device reducing unplanned outage and accident hazard is particularly necessary.
Also there are problems in existing monitoring equipment and technology, comprises Monitoring Data inaccurate, poor repeatability, finally directly affects for transformer problem judgement or bring erroneous judgement or false alarm.Causing the basic reason of this problem to be the technology that monitoring equipment uses is only monitored by component sensor, and technique falls behind, and the precision of the result of monitoring or can not pass through calibration.
Utility model content
The technical problems to be solved in the utility model: a kind of transformer oil gas on-Line Monitor Device is provided, inaccurate with the Monitoring Data solving prior art existence, poor repeatability, finally directly affects for transformer problem judgement or bring erroneous judgement or the technical matters such as false alarm.
Technical solutions of the utility model:
A kind of transformer oil gas on-Line Monitor Device, it comprises monitoring main frame, monitoring main frame is connected with carrier gas control device, the air intake opening of carrier gas control device connects the gas outlet of carrier gas bottle, the nebulizer gas pressure signal outlet of carrier gas control device is connected by the nebulizer gas pressure signal input of signal cable with monitoring main frame, and the carrier gas outlet of carrier gas control device is connected by the carrier gas inlet of pneumatic circuit with monitoring main frame.
The lower end of described monitoring main frame is provided with fan, power switch, relay delivery outlet and fuel outlet.
Described monitoring main frame inside is provided with microcomputer analysis processing unit, the nebulizer gas pressure signal input of monitoring main frame is connected with microcomputer analysis processing unit, microcomputer analysis processing unit is connected with detector and input/output interface circuit plate respectively, and detector, the carrier gas inlet of monitoring main frame, transformer oil-in are connected with the degasser of chromatography case respectively with transformer oil-out.
Input/output interface circuit plate comprises relay, relay is connected with relay output device, simulating signal input channel is connected with analog input unit, analog input unit is connected with RS-232 and RS-485 processing unit, RS-232 with RS-485 processing unit is connected with RS-232 communication interface and RS-485 communication interface respectively, analog signal output passage is connected with modulating output processing unit, modulating output processing unit is connected with microcomputer analysis processing unit, power switch is connected with power circuit, power circuit is connected with power-switching circuit, power-switching circuit and RS-232 and RS-485 processing unit, RS-232 communication interface, RS-485 communication interface is connected with communication unit.
The beneficial effects of the utility model:
The utility model is a kind of high-precision intelligent electronic device
,for monitoring transformer defect and state of insulation, when transformer generation high-energy arc discharge or spark discharge or gas shelf depreciation, the major failure gas produced is hydrogen and acetylene etc., the utility model accurately can be measured 9 kinds of components such as dissolving hydrogen, carbon monoxide, carbon dioxide, methane, acetylene, ethene in transformer insulation oil, provides the recent innovation technology about polycomponent dissolved gas (5 kinds and 9 kinds), moisture measurement.Which provide the monitoring of high precision, low cost and necessity to keep quick response, it mainly detects the early stage transformer defect when fiber deterioration occurs.It is calibrated by error automatic dynamic, makes test result from start to finish keep reliable measuring accuracy, and can reach the minimum detection limit of industrial circle.
This monitoring equipment provides complete monitoring technique, carries out Dynamic High-accuracy calibration, achieves the online on-the-spot high precision monitor of transformer oil gas and demarcation, solve the problem that original various oil chromatography monitoring equipment monitoring accuracies are not high; By formulating the method for adjustment oil chromatography on-Line Monitor Device, ensureing that testing of equipment error is in the error range of standard-required all the time, improving the accurate level of survey of on-line equipment.Solve the Monitoring Data existed in prior art inaccurate, poor repeatability, finally directly affects for transformer problem judgement or bring erroneous judgement or the technical matters such as false alarm.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is elevational schematic view of the present utility model;
Fig. 3 is the utility model monitoring main frame principle schematic;
Fig. 4 is the utility model input/output interface circuit plate principle schematic.
Embodiment
A kind of transformer oil gas on-Line Monitor Device, it comprises monitoring main frame 1, monitoring main frame 1 is connected with carrier gas control device 2, the air intake opening of carrier gas control device 2 connects the gas outlet of carrier gas bottle 3, the nebulizer gas pressure signal outlet of carrier gas control device 2 is connected by the nebulizer gas pressure signal input 1-1 of signal cable 4 with monitoring main frame 1, and the carrier gas outlet of carrier gas control device (2) is connected by the carrier gas inlet (1-13) of pneumatic circuit 5 with monitoring main frame 1.
The lower end of described monitoring main frame 1 is provided with fan 15, power switch 8, relay delivery outlet 1-14 and fuel outlet 9.
Described monitoring main frame 1 inside is provided with microcomputer analysis processing unit 1-2, the nebulizer gas pressure signal input 1-1 of monitoring main frame 1 is connected with microcomputer analysis processing unit 1-2 wire, microcomputer analysis processing unit 1-2 is connected with detector 1-3 and input/output interface circuit plate 1-4 wire respectively, and carrier gas inlet 1-13, the transformer oil-in 1-6 of detector 1-3, monitoring main frame 1 are connected with the degasser 1-5-1 wire of chromatography case 1-5 respectively with transformer oil-out 1-7.
Input/output interface circuit plate 1-4 comprises relay 1-4-1, relay 1-4-1 is connected with relay output device 1-4-2 wire, simulating signal input channel 1-4-3 is connected with analog input unit 1-4-4 wire, analog input unit 1-4-4 and RS-232 is connected with RS-485 processing unit 1-4-7 wire, RS-232 with RS-485 processing unit 1-4-7 is connected with RS-232 communication interface 1-4-5 and RS-485 communication interface 1-4-6 wire respectively, analog signal output passage 1-4-10 is connected with modulating output processing unit 1-4-11 wire, modulating output processing unit 1-4-11 is connected with microcomputer analysis processing unit 1-2 wire, power switch 8 is connected with power circuit 1-4-12 wire, power circuit 1-4-12 is connected with power-switching circuit 1-4-9 wire, power-switching circuit 1-4-9 and RS-232 and RS-485 processing unit 1-4-7, RS-232 communication interface 1-4-5, RS-485 communication interface 1-4-6 is connected with communication unit 1-4-8 wire.
During use, relay 1-4-1, simulating signal input channel 1-4-3, modulating output processing unit 1-4-11 are connected with microcomputer analysis processing unit 1-2, relay output device 1-4-2, analog signal output passage 1-4-10 are connected with the pulpit supervising device 10 of Substation control indoor, and USB interface and the ethernet port of RS-232 communication interface 1-4-5, RS-485 communication interface 1-4-6, communication unit 1-4-8 are connected with the computing machine 6 of Substation control indoor.Transformer oil-in 1-6, transformer oil-out 1-7 are connected with transformer 7 to be measured.Carrier gas bottle 3 provides the carrier gas of testing of equipment, failure gas is carried to the effect that detecting device carries out testing.The pressure of carrier gas control device 2 regulating and controlling carrier gas and flow.The failure gas that monitoring main frame 1 completes the insulating oil of transformer to be measured input is degassed, gas is delivered to each component gas detecting device 1-3 to detect, the analog signals that detecting device exports is by sending into microcomputer analysis processing unit 1-2 process in main frame after analog/digital conversion, computing machine is connected to by communication interface, computing machine is checked by analysis software, analytical test result, relay output device 1-4-2 is had in main frame, the output relay alerting signal (Chang Kai or normally closed) when failure gas reaches alarming value, the cable of the relay delivery outlet 1-14 output of the relay output device 1-4-2 of internal system is connected to the input port of the warning system being arranged in transformer station's Central Control Room, complete fault alarm function.When user needs to carry out oil sample collection to voltage device oil, carry out oil sample collection by fuel outlet 9.
Relay 1 is made up of 10 NO/NC relays, can regularly arrange or form failure-security logic with measurement report to the police, trend is reported to the police or self-inspection false alarm is associated;
Signal input channel 3 by 4 independently 4-20mA simulating signal input channel form, for the input of simulating signal, type is electric current, size is between 4-20mA, this signal derives from the microcomputer analysis processing unit of oil gas on-Line Monitor Device, for flow monitoring, and the functions such as controlling alarm.Analog input processing unit 4 receives the analog input signal of above-mentioned 4-20mA, after processing, signal is sent into RS232 and RS485 processing unit.
Analog signal output path 10 by 10 independently 4-20mA analog signal output passage form, for the output of simulating signal, type is electric current, size is between 4-20mA, this signal is obtained by modulating output processing unit, and be admitted to the supervisory system of pulpit, complete the functions such as fault alarm.For the measurement data transmission of 9 kinds of failure gas components such as hydrogen, carbon monoxide and humidity.
Principle of work:
The degasser 1-5-1 that transformer oil to be measured enters the chromatography case 1-5 in monitoring main frame 1 by transformer oil-in 1-6 is degassed, degassed rear gas is delivered to detector 1-3 and is detected, this detector 1-3 can detect 5-9 kind gas, detecting device exports the concentration signal of gas, be transferred to computing machine 6 by communication port to show, and accept the record of operator and analysis, process.
Why system can complete the Detection task of each component, it is the time difference be separated in same once test because of gas with various component, these components successively can arrive detecting device, therefore monitor can effectively be differentiated is which kind of gas is separated, and the concentration of these gases also accurately can be detected.
Claims (4)
1. a transformer oil gas on-Line Monitor Device, it comprises monitoring main frame (1), it is characterized in that: monitoring main frame (1) is connected with carrier gas control device (2), the air intake opening of carrier gas control device (2) connects the gas outlet of carrier gas bottle (3), the nebulizer gas pressure signal outlet of carrier gas control device (2) is connected by the nebulizer gas pressure signal input (1-1) of signal cable (4) with monitoring main frame (1), and the carrier gas outlet of carrier gas control device (2) is connected by the carrier gas inlet (1-13) of pneumatic circuit (5) with monitoring main frame (1).
2. a kind of transformer oil gas on-Line Monitor Device according to claim 1, is characterized in that: the lower end of described monitoring main frame (1) is provided with fan (15), power switch (8), relay delivery outlet (1-14) and fuel outlet (9).
3. a kind of transformer oil gas on-Line Monitor Device according to claim 1, it is characterized in that: described monitoring main frame (1) inside is provided with microcomputer analysis processing unit (1-2), the nebulizer gas pressure signal input (1-1) of monitoring main frame (1) is connected with microcomputer analysis processing unit (1-2), microcomputer analysis processing unit (1-2) is connected with detector (1-3) and input/output interface circuit plate (1-4) respectively, detector (1-3), the carrier gas inlet (1-13) of monitoring main frame (1), transformer oil-in (1-6) and transformer oil-out (1-7) are connected with the degasser (1-5-1) of chromatography case (1-5) respectively.
4. a kind of transformer oil gas on-Line Monitor Device according to claim 3, it is characterized in that: input/output interface circuit plate (1-4) comprises relay (1-4-1), relay (1-4-1) is connected with relay output device (1-4-2), simulating signal input channel (1-4-3) is connected with analog input unit (1-4-4), analog input unit (1-4-4) is connected with RS-232 and RS-485 processing unit (1-4-7), RS-232 with RS-485 processing unit (1-4-7) is connected with RS-232 communication interface (1-4-5) and RS-485 communication interface (1-4-6) respectively, analog signal output passage (1-4-10) is connected with modulating output processing unit (1-4-11), modulating output processing unit (1-4-11) is connected with microcomputer analysis processing unit (1-2), power switch (8) is connected with power circuit (1-4-12), power circuit (1-4-12) is connected with power-switching circuit (1-4-9), power-switching circuit (1-4-9) and RS-232 and RS-485 processing unit (1-4-7), RS-232 communication interface (1-4-5), RS-485 communication interface (1-4-6) is connected with communication unit (1-4-8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520909885.7U CN205120672U (en) | 2015-11-16 | 2015-11-16 | Transformer oil gas on -line monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520909885.7U CN205120672U (en) | 2015-11-16 | 2015-11-16 | Transformer oil gas on -line monitoring device |
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| Publication Number | Publication Date |
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| CN205120672U true CN205120672U (en) | 2016-03-30 |
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| CN201520909885.7U Active CN205120672U (en) | 2015-11-16 | 2015-11-16 | Transformer oil gas on -line monitoring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107389816A (en) * | 2017-07-13 | 2017-11-24 | 国网四川省电力公司电力科学研究院 | Gases Dissolved in Transformer Oil on-Line Monitor Device detecting system self-checking device |
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2015
- 2015-11-16 CN CN201520909885.7U patent/CN205120672U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107389816A (en) * | 2017-07-13 | 2017-11-24 | 国网四川省电力公司电力科学研究院 | Gases Dissolved in Transformer Oil on-Line Monitor Device detecting system self-checking device |
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