CN203071482U - High-tension switchgear having gas analysis function - Google Patents
High-tension switchgear having gas analysis function Download PDFInfo
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- CN203071482U CN203071482U CN 201320056667 CN201320056667U CN203071482U CN 203071482 U CN203071482 U CN 203071482U CN 201320056667 CN201320056667 CN 201320056667 CN 201320056667 U CN201320056667 U CN 201320056667U CN 203071482 U CN203071482 U CN 203071482U
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Abstract
The utility model discloses a high-tension switchgear having the gas analysis function, which comprises a cabinet body and a fault detection unit arranged in the cabinet body. The fault detection unit comprises a gas acquisition device communicated with the cabinet body and used for extracting air in the cabinet body as a gas sample, a gas channel connected with the gas acquisition device, a gas sensor arranged in the gas channel and used for detecting the content of a specified element in the gas sample, a judging module used for judging whether the detected content of the specified element in the gas sample exceeds a preset value or not, and a fault category determination module used for determining the category of a fault related to the specified element and occurred in the cabinet body on the premise that the detected content of the specified element in the gas sample exceeds the preset value. Due to the adoption of the high-tension switchgear, when a fault occurs to the high-tension switchgear, the self-checking of the high-tension switchgear is enabled. Meanwhile, the detection is prevented from being influenced by the operation state of the high-tension switchgear and more fault categories can be detected.
Description
Technical field
The application relates to high-tension apparatus detection technique field, particularly relates to a kind of high-tension switch cabinet with gas analysis function.
Background technology
High-tension switch cabinet is being undertaken in electric power system and is being closed the dual-use function that closes and disconnect power circuit, protection system safety; along with electric power system towards high voltage, big unit, jumbo developing rapidly; electrical network enlarges and the penetration and promotion of the unattended management mode of transformer station and comprehensive automation day by day, and the safe operation of high-tension switch cabinet is more and more important.In the high-tension switch cabinet during joint loose contact of plug-in strip contact, power cable turnover line, contact resistance increases, produce the heating phenomenon in the out-of-date meeting of load current flow, overheated meeting causes that the mechanical strength of metal material descends, and insulating material wears out and also may cause puncturing the formation accident.In high-tension switch cabinet, between hole in the solid insulation, the insulating barrier of different qualities, and the sharp edges place of metal (or semiconductive) electrode, because the disruptive field intensity of gas is more much lower than solid dielectric, electric field in the gas often produces partial discharge at the position of air gap again than high in the solid dielectric.These partial discharges can cause dielectric insulating strength progressively to descend, and finally cause the damage of insulating.In addition, also there is the leakage of SF6 gas in the high-tension switch cabinet, can causes the decline of equipment performance equally.Therefore, measure and monitor the running status that high-tension switch cabinet is interior, be to avoid major accident that the powerful measure of fault deterioration takes place and controls, for the normal operation that guarantees high-tension switch cabinet, the operational reliability and the automaticity that improve electric power system have very important significance.
As seen from the above description, there is diversity in the fault of high-tension switch cabinet, abnormal conditions such as, partial discharge overheated such as contact, SF6 leakage.And pass through prior art research, the applicant finds: the test instrumentation of existing high-tension switch cabinet has following problem at present:
1, the running status that when detecting, is controlled by high-tension switch cabinet, as electrical parameter (voltage, electric current, electrical power) is monitored in real time, do not close the switch cubicle of action for not carrying out for a long time the disjunction pass, can't obtain corresponding test component, not close the switch cubicle of action so be suitable for the long-term disjunction pass of not carrying out.
Be subject to the influence of extraneous test condition when 2, detecting, cause the accuracy measured not enough.For example: adopt the partial discharge of electromagnetic wave monitoring switch cubicle, be subject to extraneous strong-electromagnetic field and disturb; The method of employing infrared imaging then is subjected to the influence of system's closed structure, can't measure operating temperature accurately.
The utility model content
In view of this, the embodiment of the present application provides a kind of high-tension switch cabinet with gas analysis function, can the oneself detect when breaking down to be implemented in, and not influenced by the running status of high-tension switch cabinet when detecting, and the detection failure type is more.
To achieve these goals, the technical scheme that provides of the embodiment of the present application is as follows:
A kind of high-tension switch cabinet with gas analysis function comprises: cabinet and the failure detector that is arranged in the cabinet, wherein:
Described failure detector comprises:
Be connected with cabinet, be used for extracting the gas of cabinet as the gas deriving means of sample gas;
The gas passage that is connected with described gas deriving means;
Be positioned at described gas passage, for the gas sensor that described sample gas special component content is detected, described special component comprises: ozone, sulphur hexafluoride, hydrogen sulfide, peculiar smell or granule density;
Be used for judging whether the detected value of the special component content in the described sample gas surpasses the judge module of preset value;
Be used for when the detected value of the special component content in the described sample gas surpasses preset value, determining the fault category determination module of the interior appearance of described cabinet and described special component dependent failure classification.
Preferably, described gas deriving means comprises: be used for receiving the signal receiver that starts control signal;
Be electrically connected with described signal receiver, be positioned at and described cabinet, started by described startup control signal control, be used for extracting the vacuum pump of described cabinet gas inside.
Preferably, described gas sensor is a plurality of, and each gas sensor is positioned at different gas passages;
Described gas deriving means also comprises: be used for described sample gas has been divided at least two parts, and respectively at least two parts of described sample gas be transported to gas partitions device in the different gas passages.
Preferably, further comprise:
Be arranged between described gas sensor and the judge module, be used for the detected value of the special component content of described sample gas is carried out analog-to-digital conversion, obtain the analog to digital converter of digitlization content value.
Preferably, described judge module comprises:
Be used for searching at the given data table enquiry module of the preset value corresponding with described special component;
Be used for described digitlization content value and the preset value that finds are compared, determine the comparator of described digitlization content value and the magnitude relationship of the preset value that finds.
Preferably, further comprise: be used for described digitlization content value and/or described definite fault category are carried out memory storing.
Preferably, further comprise: be used for display unit that described digitlization content value and/or described definite fault category are shown.
Preferably, described display unit comprises: liquid crystal display screen, touch-screen or projector equipment.
Preferably, described judge module and fault category determination module are microprocessor.
Preferably, further comprise: be connected, be used for communication bus that described digitlization content value and/or described definite fault category are sent with described microprocessor.
The technical scheme that is provided by above the embodiment of the present application as seen, this high-tension switch cabinet that the embodiment of the present application provides, utilize vacuum pump to extract the interior gas of cabinet as sample gas, and sample gas is transported in the gas detection sensor, utilize gas detection sensor that the content of special component in the sample gas is detected, again detected value and preset value are compared, when the content of special component in the detected gas surpasses preset value, determine to occur in the cabinet fault category relevant with this special component.
Compared with prior art, this high-tension switch cabinet, when utilizing high-tension switch cabinet to break down, the corresponding principle that changes can appear in its composition of gases within, and then by can detect the fault of high-tension switch cabinet to the gas componant analysis in the cabinet.So, when breaking down, can the oneself detect, and when detecting, not influenced by the running status of high-tension switch cabinet, and the detection failure type is more.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, the accompanying drawing that describes below only is some embodiment that put down in writing among the application, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of a kind of high-tension switch cabinet that Fig. 1 provides for the embodiment of the present application;
The structural representation of the another kind of high-tension switch cabinet that Fig. 2 provides for the embodiment of the present application;
The structural representation of the judge module that Fig. 3 provides for the embodiment of the present application;
The structural representation of another high-tension switch cabinet that Fig. 4 provides for the embodiment of the present application.
Embodiment
In order to make those skilled in the art person understand technical scheme among the application better, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment only is the application's part embodiment, rather than whole embodiment.Based on the embodiment among the application, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all should belong to the scope of the application's protection.
The structural representation of the high-tension switch cabinet with gas analysis function that Fig. 1 provides for the embodiment of the present application.
As shown in Figure 1, this high-tension switch cabinet comprises: cabinet 100 and failure detector, and wherein: failure detector comprises: gas deriving means 10, gas passage 20, gas sensor 30, judge module 40 and fault category determination module 50, wherein:
Space in described gas deriving means 10 and the cabinet 100 is connected, and the gas that is used for extracting cabinet 100 is as sample gas, and described sample gas is transported in the gas passage 20.
In the embodiment of the present application, as shown in Figure 1, gas deriving means 10 can comprise: signal receiver 11 and vacuum pump 12, wherein:
In other embodiment of the application, as shown in Figure 2, gas sensor 30 can also have a plurality of, and each gas sensor is positioned at different gas passage 20.The gas deriving means can also comprise like this: gas partitions device 13 and gas partitions device 13 are arranged between vacuum pump 12 and the gas passage 20, its effect is that described sample gas has been divided at least two parts, and respectively at least two parts of described sample gas are transported in the different gas passages, in the specific implementation, the gas partitions device can be bifurcated glass tube or plastic tube.
Because the detected value of transducer all is analog signal usually, so in the embodiment of the present application, as shown in Figure 1, between transducer 30 and judge module 40, also be provided with analog to digital converter 60, analog to digital converter 60 is used for the detected value of the special component content of described sample gas is carried out analog-to-digital conversion, obtains the digitlization content value.
In the embodiment of the present application, as shown in Figure 3, judge module 40 comprises: enquiry module 41 and comparator 42, wherein:
Here the preset value in the given data table, the detected value when being generally high-tension switch cabinet and not breaking down.
Fault category determination module 50 is used for when the detected value of the special component content in the described sample gas surpasses preset value, determines the fault category relevant with described special component to occur in the described cabinet 100.
When gas sensor is ozone sensor, and the detected value of ozone sensor is then determined partial discharges fault to occur in the high-tension switch cabinet above preset value; Equally, when gas sensor is the sulphur hexafluoride transducer, and the detected value of sulphur hexafluoride transducer is then determined to occur in the high-tension switch cabinet sulphur hexafluoride and is revealed fault above preset value; In addition, when gas sensor is the combination of hydrogen sulfide, peculiar smell and particle sensor, and detected value then determines that the overheated fault of contact appears in high-tension switch cabinet when unusual.
In the embodiment of the present application, judge module and fault category determining unit can be integrated in the same microprocessor.
In addition, in other embodiment of the application, as shown in Figure 4, the failure detector of this high-tension switch cabinet can also comprise:
The technical scheme that is provided by above the embodiment of the present application as seen, this high-tension switch cabinet that the embodiment of the present application provides, utilize vacuum pump to extract the interior gas of cabinet as sample gas, and sample gas is transported in the gas detection sensor, utilize gas detection sensor that the content of special component in the sample gas is detected, again detected value and preset value are compared, when the content of special component in the detected gas surpasses preset value, determine to occur in the cabinet fault category relevant with this special component.
Compared with prior art, this high-tension switch cabinet, when utilizing high-tension switch cabinet to break down, the corresponding principle that changes can appear in its composition of gases within, and then by can detect the fault of high-tension switch cabinet to the gas componant analysis in the cabinet.So, when breaking down, can the oneself detect, and when detecting, not influenced by the running status of high-tension switch cabinet, and the detection failure type is more.
The above only is the application's preferred implementation, makes those skilled in the art can understand or realize the application.Multiple modification to these embodiment will be apparent to one skilled in the art, and defined General Principle can realize under the situation of the spirit or scope that do not break away from the application in other embodiments herein.Therefore, the application will can not be restricted to these embodiment shown in this article, but will meet the wideest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. the high-tension switch cabinet with gas analysis function is characterized in that, comprising: cabinet and the failure detector that is arranged in the cabinet, wherein:
Described failure detector comprises:
Be connected with cabinet, be used for extracting the gas of cabinet as the gas deriving means of sample gas;
The gas passage that is connected with described gas deriving means;
Be positioned at described gas passage, for the gas sensor that described sample gas special component content is detected, described special component comprises: ozone, sulphur hexafluoride, hydrogen sulfide, peculiar smell or granule density;
Be used for judging whether the detected value of the special component content in the described sample gas surpasses the judge module of preset value;
Be used for when the detected value of the special component content in the described sample gas surpasses preset value, determining the fault category determination module of the interior appearance of described cabinet and described special component dependent failure classification.
2. according to the described high-tension switch cabinet of claim 1, it is characterized in that described gas deriving means comprises: be used for receiving the signal receiver that starts control signal;
Be electrically connected with described signal receiver, be positioned at and described cabinet, started by described startup control signal control, be used for extracting the vacuum pump of described cabinet gas inside.
3. according to the described high-tension switch cabinet of claim 2, it is characterized in that described gas sensor is a plurality of, and each gas sensor is positioned at different gas passages;
Described gas deriving means also comprises: be used for described sample gas has been divided at least two parts, and respectively at least two parts of described sample gas be transported to gas partitions device in the different gas passages.
4. according to the described high-tension switch cabinet of claim 3, it is characterized in that, further comprise:
Be arranged between described gas sensor and the judge module, be used for the detected value of the special component content of described sample gas is carried out analog-to-digital conversion, obtain the analog to digital converter of digitlization content value.
5. according to the described high-tension switch cabinet of claim 4, it is characterized in that described judge module comprises:
Be used for searching at the given data table enquiry module of the preset value corresponding with described special component;
Be used for described digitlization content value and the preset value that finds are compared, determine the comparator of described digitlization content value and the magnitude relationship of the preset value that finds.
6. according to the described high-tension switch cabinet of claim 4, it is characterized in that, further comprise: be used for described digitlization content value and/or described definite fault category are carried out memory storing.
7. according to the described high-tension switch cabinet of claim 1, it is characterized in that, further comprise: be used for display unit that described digitlization content value and/or described definite fault category are shown.
8. according to the described high-tension switch cabinet of claim 7, it is characterized in that described display unit comprises: liquid crystal display screen, touch-screen or projector equipment.
9. according to the described high-tension switch cabinet of claim 1-8, it is characterized in that described judge module and fault category determination module are microprocessor.
10. according to the described high-tension switch cabinet of claim 9, it is characterized in that, further comprise: be connected, be used for communication bus that described digitlization content value and/or described definite fault category are sent with described microprocessor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320056667 CN203071482U (en) | 2013-01-29 | 2013-01-29 | High-tension switchgear having gas analysis function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320056667 CN203071482U (en) | 2013-01-29 | 2013-01-29 | High-tension switchgear having gas analysis function |
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| Publication Number | Publication Date |
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| CN203071482U true CN203071482U (en) | 2013-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320056667 Expired - Lifetime CN203071482U (en) | 2013-01-29 | 2013-01-29 | High-tension switchgear having gas analysis function |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103412247A (en) * | 2013-08-27 | 2013-11-27 | 国家电网公司 | Ring main unit partial discharge monitoring system |
| CN103439464A (en) * | 2013-08-27 | 2013-12-11 | 国家电网公司 | Multi-channel ozone detector used for ring main units |
| CN103529333A (en) * | 2013-10-25 | 2014-01-22 | 国家电网公司 | Device and method for detecting thermal fault of high-tension switch cabinet |
| CN104019914A (en) * | 2014-06-03 | 2014-09-03 | 国家电网公司 | Special temperature image alarming system for switch cabinet |
| CN104502545A (en) * | 2015-01-12 | 2015-04-08 | 国网上海市电力公司 | Gas exhausting type ozone detector used for ring main unit |
| CN105158648A (en) * | 2015-10-13 | 2015-12-16 | 西安宝世电力技术有限公司 | High-voltage cable fault early warning method based on intelligent olfaction |
| CN106706853A (en) * | 2016-12-29 | 2017-05-24 | 国家电网公司 | High-voltage switch gear and gas state monitoring device thereof |
| 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 |
-
2013
- 2013-01-29 CN CN 201320056667 patent/CN203071482U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103412247A (en) * | 2013-08-27 | 2013-11-27 | 国家电网公司 | Ring main unit partial discharge monitoring system |
| CN103439464A (en) * | 2013-08-27 | 2013-12-11 | 国家电网公司 | Multi-channel ozone detector used for ring main units |
| CN103529333A (en) * | 2013-10-25 | 2014-01-22 | 国家电网公司 | Device and method for detecting thermal fault of high-tension switch cabinet |
| CN103529333B (en) * | 2013-10-25 | 2016-08-17 | 国家电网公司 | Thermal fault of high-tension switch cabinet detection device and detection method |
| CN104019914A (en) * | 2014-06-03 | 2014-09-03 | 国家电网公司 | Special temperature image alarming system for switch cabinet |
| CN104502545A (en) * | 2015-01-12 | 2015-04-08 | 国网上海市电力公司 | Gas exhausting type ozone detector used for ring main unit |
| CN105158648A (en) * | 2015-10-13 | 2015-12-16 | 西安宝世电力技术有限公司 | High-voltage cable fault early warning method based on intelligent olfaction |
| CN105158648B (en) * | 2015-10-13 | 2019-02-22 | 西安宝世电力技术有限公司 | High-tension cable fault early warning method based on intelligent smell |
| CN106706853A (en) * | 2016-12-29 | 2017-05-24 | 国家电网公司 | High-voltage switch gear and gas state monitoring device thereof |
| 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 |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130717 |
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| CX01 | Expiry of patent term |