CN105203224A - Overheating fault early warning method and system for dry-type air-core reactor - Google Patents
Overheating fault early warning method and system for dry-type air-core reactor Download PDFInfo
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- CN105203224A CN105203224A CN201510596875.7A CN201510596875A CN105203224A CN 105203224 A CN105203224 A CN 105203224A CN 201510596875 A CN201510596875 A CN 201510596875A CN 105203224 A CN105203224 A CN 105203224A
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Abstract
The invention discloses an overheating fault early warning method and system for a dry-type air-core reactor. The method includes the steps that the content value of characteristic gas generated by overheating of the dry-type air-core reactor is monitored through a gas sensor; the monitored characteristic gas content value passes through an A/D converting unit and then is transmitted to a data transmission unit, the data transmission unit sends characteristic gas content value signals in a wireless signal mode, the signals are received by a data receiving unit, and the received wireless signals are treated by a background server and then displayed on a remote client terminal screen; meanwhile, a remote client terminal enables the characteristic gas content value to be compared with a set threshold value, and when the characteristic gas content value exceeds the set threshold value, the remote client terminal gives out an alarm instruction to control an alarm device to give an alarm. Real-time online monitoring can be conducted, and higher accuracy and precision are achieved, so that the loss of an electric power system is effectively reduced.
Description
Technical field
The present invention relates to a kind of method for early warning, relate to method and the system thereof of the early warning of a kind of dry-type air-core reactor overheating fault in particular, belong to power equipment dry-type air-core reactor overheating fault monitoring technical field.
Background technology
Practical operating experiences and the great mass of data of dry-type air-core reactor show: the main cause causing dry-type air-core reactor to burn is turn-to-turn insulation short trouble.Dry-type air-core reactor insulation short trouble has more encapsulates inside now, once the insulating material local temperature in encapsulating is too high, scaling loss occurs, usually cannot repair, can only entirety scrap.
The encapsulating temperature of dry-type air-core reactor can be used in differentiating whether reactor overheating fault occurs, in recent years, along with infrared monitoring technology is constantly ripe and become better and approaching perfection day by day, the infrared monitoring diagnostic techniques of power equipment is developed rapidly as a simple and efficient equipment state on-line monitoring technique, has widely used infrared thermoviewer at present and has carried out temperature monitoring to dry-type air-core reactor.But infrared thermoviewer can only be exposed to outermost encapsulating to dry-type air-core reactor and carry out thermometric, the temperature rise situation of internally encapsulating cannot be monitored in detail; And due to the position limitation of infrared thermoviewer scanning probe point, dry-type air-core reactor encapsulating bottom can only be monitored, and dry-type air-core reactor thermal self-restraint stress generally appears at the middle and upper part of each encapsulating, infrared thermoviewer can only monitor the part of dry-type air-core reactor temperature minimum point, so contactless far infrared On-line Measuring Method cannot monitor the thermal self-restraint stress position of dry-type air-core reactor, therefore badly a kind of new simple effective method of research is needed to the monitoring of dry-type air-core reactor built-in electrical insulation performance.
Summary of the invention
The shortcomings such as the thermal self-restraint stress position of dry-type air-core reactor cannot be monitored, cannot be monitored to the temperature rise situation that the object of the invention is to for encapsulating in existing dry-type air-core reactor infrared monitoring diagnostic techniques in detail, provides method and the system thereof of the early warning of a kind of dry-type air-core reactor overheating fault.
the present invention for achieving the above object, adopt technical solution to be:a method for early warning for dry-type air-core reactor overheating fault, comprises the following steps:
Obtain dry-type air-core reactor encapsulating surface and cross thermogenetic characteristic gas content value;
Thermogenetic characteristic gas content value is crossed on transmission air reactor encapsulating surface;
Send air reactor encapsulating surface and cross thermogenetic characteristic gas content value signal;
Receive air reactor encapsulating surface and cross thermogenetic characteristic gas content value signal;
Process and transmit air reactor encapsulating surface and cross thermogenetic characteristic gas content value signal;
Receive, show and compare air reactor encapsulating surface and cross thermogenetic characteristic gas content value signal, cross when thermogenetic characteristic gas content value signal content value exceedes setting threshold value when air reactor encapsulating surface and send alerting signal;
Receive alerting signal and report to the police.
A kind of early warning system of dry-type air-core reactor overheating fault, comprise gas sensor, A/D converting unit, data transmission device, data sink, background server, Terminal Server Client and warning system, described gas sensor comprises electrochemical gas sensor and infrared type gas sensor, described electrochemical gas sensor and infrared type gas sensor are arranged in dry-type air-core reactor encapsulating surface, electrochemical gas sensor is connected with the input end of A/D converting unit respectively with the output terminal of infrared type gas sensor, the described output terminal of A/D converting unit is connected with the input end of data transmission device, the output terminal of described data transmission device is connected with the input end of data sink, the output terminal of described data sink is connected with the receiving end of background server, the output terminal of described background server is connected with Terminal Server Client, the output terminal of described Terminal Server Client is connected with warning system,
Gas sensor, crosses thermogenetic characteristic gas content value for obtaining dry-type air-core reactor encapsulating surface;
A/D converting unit, crosses thermogenetic characteristic gas content value for transmitting air reactor encapsulating surface;
Data transmission device, crosses thermogenetic characteristic gas content value signal for sending air reactor encapsulating surface;
Data sink, crosses thermogenetic characteristic gas content value signal for receiving air reactor encapsulating surface;
Background server, for the treatment of and transmit air reactor encapsulating surface cross thermogenetic characteristic gas content value signal;
Terminal Server Client, crossing thermogenetic characteristic gas content value signal for receiving, showing and compare air reactor encapsulating surface, sending alerting signal for crossing when thermogenetic characteristic gas content value signal content value exceedes setting threshold value when air reactor encapsulating surface;
Warning system, for receiving alerting signal and reporting to the police.
Be connected by wireless network between described data transmission device and data sink.
compared with prior art, the invention has the beneficial effects as follows:
Cost is low, measures accurately, and the overheating fault situation of the real-time automatic monitoring dry-type air-core reactor of energy, can effectively early warning when dry-type air-core reactor generation overheating fault.Overheating fault method for early warning in the present invention and system, by arranging that gas sensor is crossed thermogenetic characteristic gas content value to dry-type air-core reactor and monitored on dry-type air-core reactor encapsulating surface, the characteristic gas content value monitored is by transferring to data transmission unit after A/D converting unit, characteristic gas content value signal sends with the form of wireless signal and is received by data receipt unit by data transmission unit, the wireless signal received shows after background server process on Terminal Server Client screen, simultaneously Terminal Server Client by characteristic gas content value compared with the threshold value of setting, when characteristic gas content value exceedes setting threshold value, Terminal Server Client sends alarm command and controls warning device warning, compared with existing dry-type air-core reactor method for early warning, the present invention can carry out real time on-line monitoring and have higher accuracy and accuracy, thus effectively reduces the loss of electric system.
Accompanying drawing explanation
Fig. 1 is method for early warning process flow diagram in the present invention.
Fig. 2 is early warning system structured flowchart in the present invention.
Embodiment
Illustrate that the present invention is described in further detail with embodiment below in conjunction with accompanying drawing.
One, embodiment one
See Fig. 1, a kind of method for early warning of dry-type air-core reactor overheating fault, it is a kind of method for early warning of dry-type air-core reactor overheating fault of feature based gas examination, when dry-type air-core reactor built-in electrical insulation generation local overheating, local temperature can rise to higher level, and insulating material epoxy resin can decompose because of overheated the characteristic gas producing some kind; And the composition material of other parts is as comparatively strong in resistances to elevated temperatures such as coil, glass fibre and mylars and can not produce gas componant in dry-type air-core reactor, by the characteristic gas that detection ring epoxy resins produces before high-temp combustion, this method for early warning judges whether dry-type air-core reactor overheating fault occurs, and specifically comprises the following steps:
Obtain dry-type air-core reactor encapsulating surface and cross thermogenetic characteristic gas content value;
Thermogenetic characteristic gas content value is crossed on transmission air reactor encapsulating surface;
Send air reactor encapsulating surface and cross thermogenetic characteristic gas content value signal;
Receive air reactor encapsulating surface and cross thermogenetic characteristic gas content value signal;
Process and transmit air reactor encapsulating surface and cross thermogenetic characteristic gas content value signal;
Receive, show and compare air reactor encapsulating surface and cross thermogenetic characteristic gas content value signal, cross when thermogenetic characteristic gas content value signal content value exceedes setting threshold value when air reactor encapsulating surface and send alerting signal;
Receive alerting signal and report to the police.
Two, embodiment two
See Fig. 2, a kind of early warning system of dry-type air-core reactor overheating fault, be a kind of early warning system of dry-type air-core reactor overheating fault of feature based gas examination, comprise gas sensor, A/D converting unit, data transmission device, data sink, background server, Terminal Server Client and warning system.Described gas sensor comprises electrochemical gas sensor and infrared type gas sensor, described electrochemical gas sensor and infrared type gas sensor are arranged in dry-type air-core reactor encapsulating surface, and electrochemical gas sensor is connected with the input end of A/D converting unit respectively with the output terminal of infrared type gas sensor.The described output terminal of A/D converting unit is connected with the input end of data transmission device, and the output terminal of described data transmission device is connected with the input end of data sink, and the output terminal of described data sink is connected with the receiving end of background server; The output terminal of described background server is connected with Terminal Server Client, and the output terminal of described Terminal Server Client is connected with warning system, and Terminal Server Client controls warning device and reports to the police.Wherein:
Gas sensor, crosses thermogenetic characteristic gas content value for obtaining dry-type air-core reactor encapsulating surface.When dry-type air-core reactor normally runs, gas sensor is used for acquisition, Real-Time Monitoring dry-type air-core reactor encapsulating surface insulation material epoxy resin crosses thermogenetic characteristic gas CO and CO
2content, the electric chemical formula gas sensor monitors of CO wherein, Sensor monitoring scope is 0-1000 μ L/L, and precision is 1 μ L/L; CO wherein
2use infrared type gas sensor monitors, Sensor monitoring scope is 0-2000 μ L/L, and precision is 1 μ L/L.
A/D converting unit, crosses thermogenetic characteristic gas content value for transmitting air reactor encapsulating surface.Namely A/D converting unit transfers on data transmission device after the characteristic gas content value simulating signal monitored is converted to digital signal.
Data transmission device, crosses thermogenetic characteristic gas content value signal for sending air reactor encapsulating surface; Data sink, crosses thermogenetic characteristic gas content value signal for receiving air reactor encapsulating surface.Wherein, be connected by wireless network between described data transmission device and data sink.The digital signal received is converted to wireless signal and transmits by data transmission device, and data sink receives the wireless signal that data transmission device is launched, and by transmission of wireless signals to background server.
Background server, for the treatment of and transmit air reactor encapsulating surface cross thermogenetic characteristic gas content value signal; Namely wireless data is reduced into characteristic gas content value and transfers data to Terminal Server Client by background server.
Terminal Server Client, crossing thermogenetic characteristic gas content value signal for receiving, showing and compare air reactor encapsulating surface, sending alerting signal for crossing when thermogenetic characteristic gas content value signal content value exceedes setting threshold value when air reactor encapsulating surface.Namely the characteristic gas content value monitored is presented on screen by Terminal Server Client, and controls warning device in real time; When dry-type air-core reactor generation overheating fault, dry-type air-core reactor surface temperature raises, and produces characteristic gas CO and CO
2, the characteristic gas total content value that gas sensor monitors arrives increases, and the present embodiment medium-long range client predetermined threshold value is CO and CO
2total content is no more than 850 μ L/L, and when the characteristic gas total content value that Terminal Server Client receives exceedes default threshold value, Terminal Server Client sends alarm command, controls warning device and reports to the police.
Warning system, for receiving alerting signal and reporting to the police; Namely warning device is reported to the police when receiving the alarm command that Terminal Server Client sends.
See Fig. 1, Fig. 2, the present invention proposes overheating fault method for early warning and the system of a kind of feature based gas content inspection dry-type air-core reactor, achieve the overheating fault situation of on-line monitoring dry-type air-core reactor, and report to the police when reactor overheating fault acquires a certain degree, thus can effectively early warning when dry-type air-core reactor generation overheating fault, reduce the loss of electric system.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, said structure all should be considered as belonging to protection scope of the present invention.
Claims (3)
1. a method for early warning for dry-type air-core reactor overheating fault, is characterized in that, comprises the following steps:
Obtain dry-type air-core reactor encapsulating surface and cross thermogenetic characteristic gas content value;
Thermogenetic characteristic gas content value is crossed on transmission air reactor encapsulating surface;
Send air reactor encapsulating surface and cross thermogenetic characteristic gas content value signal;
Receive air reactor encapsulating surface and cross thermogenetic characteristic gas content value signal;
Process and transmit air reactor encapsulating surface and cross thermogenetic characteristic gas content value signal;
Receive, show and compare air reactor encapsulating surface and cross thermogenetic characteristic gas content value signal, cross when thermogenetic characteristic gas content value signal content value exceedes setting threshold value when air reactor encapsulating surface and send alerting signal;
Receive alerting signal and report to the police.
2. the early warning system of a dry-type air-core reactor overheating fault, it is characterized in that: comprise gas sensor, A/D converting unit, data transmission device, data sink, background server, Terminal Server Client and warning system, described gas sensor comprises electrochemical gas sensor and infrared type gas sensor, described electrochemical gas sensor and infrared type gas sensor are arranged in dry-type air-core reactor encapsulating surface, electrochemical gas sensor is connected with the input end of A/D converting unit respectively with the output terminal of infrared type gas sensor, the described output terminal of A/D converting unit is connected with the input end of data transmission device, the output terminal of described data transmission device is connected with the input end of data sink, the output terminal of described data sink is connected with the receiving end of background server, the output terminal of described background server is connected with Terminal Server Client, the output terminal of described Terminal Server Client is connected with warning system,
Gas sensor, crosses thermogenetic characteristic gas content value for obtaining dry-type air-core reactor encapsulating surface;
A/D converting unit, crosses thermogenetic characteristic gas content value for transmitting air reactor encapsulating surface;
Data transmission device, crosses thermogenetic characteristic gas content value signal for sending air reactor encapsulating surface;
Data sink, crosses thermogenetic characteristic gas content value signal for receiving air reactor encapsulating surface;
Background server, for the treatment of and transmit air reactor encapsulating surface cross thermogenetic characteristic gas content value signal;
Terminal Server Client, crossing thermogenetic characteristic gas content value signal for receiving, showing and compare air reactor encapsulating surface, sending alerting signal for crossing when thermogenetic characteristic gas content value signal content value exceedes setting threshold value when air reactor encapsulating surface;
Warning system, for receiving alerting signal and reporting to the police.
3. the early warning system of a kind of dry-type air-core reactor overheating fault according to claim 1, be is characterized in that: be connected by wireless network between described data transmission device and data sink.
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| CN109186786A (en) * | 2018-10-10 | 2019-01-11 | 西安交通大学 | Whether a kind of monitoring electrical equipment is in electrical contact the devices and methods therefor of overheat |
| CN109856513A (en) * | 2019-02-25 | 2019-06-07 | 武汉大学 | A kind of gas monitoring method of XPLE cable local discharge or overheat |
| CN110927534A (en) * | 2019-11-06 | 2020-03-27 | 国网天津市电力公司电力科学研究院 | Dry-type air-core reactor interturn insulation degradation on-line monitoring device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110927534A (en) * | 2019-11-06 | 2020-03-27 | 国网天津市电力公司电力科学研究院 | Dry-type air-core reactor interturn insulation degradation on-line monitoring device |
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