CN102109481A - Monitoring system for ensuring safe operation of power equipment - Google Patents
Monitoring system for ensuring safe operation of power equipment Download PDFInfo
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- CN102109481A CN102109481A CN2009102007339A CN200910200733A CN102109481A CN 102109481 A CN102109481 A CN 102109481A CN 2009102007339 A CN2009102007339 A CN 2009102007339A CN 200910200733 A CN200910200733 A CN 200910200733A CN 102109481 A CN102109481 A CN 102109481A
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- power equipment
- radio frequency
- monitoring system
- monitoring
- data processing
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Abstract
A monitoring system for ensuring the safe operation of power equipment belongs to the technical field of power equipment monitoring. The work system for monitoring the micro-water in transformer oil comprises a radio frequency detection unit, a data processing unit, and a client monitoring terminal. The radio frequency detection unit comprises a radio frequency signal source and a capacitive radio frequency sensor load; the data processing unit is a PC/104 bus-based industrial embedded computer; the client monitoring terminal is provided with a trace water fault diagnosis software for checking the water content of the monitored transformer oil. The monitoring system has stable performance, allows a quick and real-time detection of the water content in transformer oil, and has an extensive application value in the field of the security maintenance of power equipment.
Description
Technical field
The present invention relates to a kind of utility appliance of power equipment, especially relate to a kind of monitoring system that guarantees the power equipment safety operation.
Background technology
Enlarging day by day of structure and improving constantly of voltage apparatus grade along with power industry, the maintenance of transformer is more and more important, and wherein the moisture measurement in the transformer oil become transformer safeguard in a very heavy part, water cut in the oil has decisive action in essence in the safe operation of transformer, the content of moisture plays decisive influence to the insulativity of transformer oil, too much water cut will speed up the aging of insulating material in the oil, and reduction insulativity, and then cause the instability and the potential danger of equipment operation, can cause coil to produce arc ring and short circuit phenomenon when water content is big, even can blast in some cases etc.According to GB50150-2006 " Erection works of electrical installations Standard for handover test of electric equipment ", the measurement of minor amount of water must meet certain regulation in the oil.Micro-water content in the offline inspection insulating oil of laboratory, complicated operation is wayward, and especially oil and water separation link realizes that difficulty is big, and from getting oil to the complicated cost height of testing process, real-time is poor to the laboratory distance for transformer simultaneously; Online little water monitoring is effectively replenishing of the little water monitoring in laboratory and perfect.
Application number be CN200820056711 patent disclosure be used for the injector of transformer oil determination of moisture in a kind of gas chromatograph, this kind detection method is highly sensitive, interference is little, but operation is complicated, general technician be difficult to hold and equipment requirements higher, nor be beneficial to on-line monitoring.The invention provides a kind of on-line monitoring system with radio frequency detecting unit, this work system measuring speed is fast, strong anti-interference performance, and can detect the change of soil water content situation in the transformer in real time.
Summary of the invention
The invention provides a kind of monitoring system that guarantees the power equipment safety operation, it comprises radio frequency detecting unit, data processing unit, client's monitoring terminal.
Wherein, described radio frequency detecting unit comprises radio-frequency signal source and condenser type radio frequency sensor load; Described data processing unit is the industrial embedded computer based on the PC/104 bus; Described client's monitoring terminal is equipped with the micro-moisture fault diagnosis software.
The present invention has reached stable by the change of soil water content situation in the on-line measurement transformer oil, and measuring speed is fast, thereby early warning in time guarantees the transformer purpose of safe operation.
Description of drawings
Fig. 1 is the device connection diagram that the present invention guarantees the monitoring system of power equipment safety operation.
Embodiment
As shown in Figure 1, be the device connection diagram of the monitoring system of assurance power equipment safety operation of the present invention.The invention provides a kind of monitoring system that guarantees the power equipment safety operation, it comprises radio frequency detecting unit, data processing unit, client's monitoring terminal.
Wherein, described radio frequency detecting unit comprises radio-frequency signal source and condenser type radio frequency sensor load; Described data processing unit is the industrial embedded computer based on the PC/104 bus; Described client's monitoring terminal is equipped with the micro-moisture fault diagnosis software.
When system works, the radio-frequency signal source emitting radio frequency signal, because oil is apolar substance, water is polar material, both specific inductive capacity differ greatly, thereby present different radio-frequency (RF) impedance characteristics.When radiofrequency signal is sent to oil when being the condenser type radio frequency sensor load of medium, this loaded impedance changes along with different ow ratio in the mixed liquid, variable signal enters the industrial embedded computer based on the PC/104 bus, export the content of water content in oil after treatment, client's monitoring terminal is equipped with the micro-moisture fault diagnosis software, check moisture in the measured transformer oil, and, judge whether to produce the fault that relevant therewith fault or prediction will take place according to the transformer water content in oil.
Embodiment among the present invention only is used for that the present invention will be described, does not constitute the restriction to the claim scope, and other substituting of being equal in fact that those skilled in that art can expect are all in protection domain of the present invention.
Claims (4)
1. a monitoring system that guarantees the power equipment safety operation is characterized in that comprising radio frequency detecting unit, data processing unit, client's monitoring terminal.
2. the monitoring system of assurance power equipment safety operation as claimed in claim 1 is characterized in that described radio frequency detecting unit comprises radio-frequency signal source and condenser type radio frequency sensor load.
3. the monitoring system of assurance power equipment safety operation as claimed in claim 1 is characterized in that described data processing unit is the industrial embedded computer based on the PC/104 bus.
4. the monitoring system of assurance power equipment safety operation as claimed in claim 1 is characterized in that described client's monitoring terminal is equipped with the micro-moisture fault diagnosis software.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102007339A CN102109481A (en) | 2009-12-24 | 2009-12-24 | Monitoring system for ensuring safe operation of power equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102007339A CN102109481A (en) | 2009-12-24 | 2009-12-24 | Monitoring system for ensuring safe operation of power equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102109481A true CN102109481A (en) | 2011-06-29 |
Family
ID=44173698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102007339A Pending CN102109481A (en) | 2009-12-24 | 2009-12-24 | Monitoring system for ensuring safe operation of power equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102109481A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106226363A (en) * | 2016-07-12 | 2016-12-14 | 无锡市华东电力设备有限公司 | A kind of monitoring system ensureing that power equipment safety runs |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2570789Y (en) * | 2002-09-18 | 2003-09-03 | 新疆特变电工股份有限公司 | Device for monitoring moisture in transformer oil |
| CN101067617A (en) * | 2007-04-06 | 2007-11-07 | 河海大学常州校区 | Micro-water and mixed gas ultrasonic on-line detecting method and device in transformer oil |
| CN201016974Y (en) * | 2007-02-14 | 2008-02-06 | 孙国刚 | Oil water-containing on-line measuring instrument and measuring display device |
| CN201184877Y (en) * | 2008-03-28 | 2009-01-21 | 上海科创色谱仪器有限公司 | Injector of gas chromatograph for measuring moisture of transformer oil |
| CN101449223A (en) * | 2006-03-16 | 2009-06-03 | 功率监视器公司 | Underground monitoring system and method |
| CN101692587A (en) * | 2009-09-09 | 2010-04-07 | 重庆大学 | System and method thereof for online monitoring and managing security tools and instruments of transformer substation |
-
2009
- 2009-12-24 CN CN2009102007339A patent/CN102109481A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2570789Y (en) * | 2002-09-18 | 2003-09-03 | 新疆特变电工股份有限公司 | Device for monitoring moisture in transformer oil |
| CN101449223A (en) * | 2006-03-16 | 2009-06-03 | 功率监视器公司 | Underground monitoring system and method |
| CN201016974Y (en) * | 2007-02-14 | 2008-02-06 | 孙国刚 | Oil water-containing on-line measuring instrument and measuring display device |
| CN101067617A (en) * | 2007-04-06 | 2007-11-07 | 河海大学常州校区 | Micro-water and mixed gas ultrasonic on-line detecting method and device in transformer oil |
| CN201184877Y (en) * | 2008-03-28 | 2009-01-21 | 上海科创色谱仪器有限公司 | Injector of gas chromatograph for measuring moisture of transformer oil |
| CN101692587A (en) * | 2009-09-09 | 2010-04-07 | 重庆大学 | System and method thereof for online monitoring and managing security tools and instruments of transformer substation |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106226363A (en) * | 2016-07-12 | 2016-12-14 | 无锡市华东电力设备有限公司 | A kind of monitoring system ensureing that power equipment safety runs |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110629 |