CN202870239U - GIS equipment partial discharge monitoring device - Google Patents
GIS equipment partial discharge monitoring device Download PDFInfo
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- CN202870239U CN202870239U CN201220423285.6U CN201220423285U CN202870239U CN 202870239 U CN202870239 U CN 202870239U CN 201220423285 U CN201220423285 U CN 201220423285U CN 202870239 U CN202870239 U CN 202870239U
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- gis equipment
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Abstract
The present utility model provides a GIS equipment partial discharge monitoring device. The device is used for monitoring GIS equipment, and composed of a high frequency sensor, a noise sensor, a partial discharge monitor and a basin-shaped insulator, the high frequency sensor is fixed on an external installing seam of the GIS equipment and the basin-shaped insulator or directly arranged inside the GIS equipment, the noise sensor is fixed outside the GIS equipment, output signals of the high frequency sensor and the noise sensor are respectively connected with the partial discharge monitor; equipment faults can be timely avoided and equipment state assessment can be realized, and equipment maintenance costs can be reduced.
Description
Technical field
The utility model designs a kind of monitoring device of converting equipment, particularly relates to a kind of GIS apparatus local discharge monitoring device.
Background technology
Gas-insulating and fully-enclosed combined electrical apparatus (GIS equipment), be the high, precision and frontier power transmission and transforming equipment that grows up nearly decades, utilize the good insulating property of SF6 gas, the sealings such as isolating switch, disconnector, grounding switch, PT, CT, lightning arrester, bus, inlet-outlet sleeve, cable termination fit together, this occupation area of equipment is little, advanced technology, and maintenance workload is little, operational reliability is high, will be the developing direction of following converting equipment.
At present, the live part that GIS equipment does not expose except inlet-outlet sleeve, adopt the SF6 gas-insulated, reliability is higher, maintenance is few, but have again simultaneously that the external diagnosis fault is difficult for, unnecessary increase field-strip workload during the fault misjudgment, greatly reduced the problem of the operational efficiency of equipment.
The utility model content
The purpose of this utility model provides a kind of GIS apparatus local discharge monitoring device, solves that the external diagnosis fault is difficult for, unnecessary increase field-strip workload and the low problem of GIS equipment operating efficiency during the fault misjudgment.
To achieve these goals, the utility model provides a kind of GIS apparatus local discharge monitoring device, GIS equipment is monitored, comprise high frequency sensors, sensor noise and shelf depreciation monitor, GIS equipment also comprises disc insulator, high frequency sensors is fixedly installed on the outside installation seam crossing of GIS equipment and disc insulator or is directly installed on the inside of GIS equipment, sensor noise is fixedly installed on outside the GIS equipment, and the output signal of high frequency sensors and sensor noise links to each other with the shelf depreciation monitor respectively.
Seam crossing is installed in the outside of GIS equipment and disc insulator, except the place of high frequency sensors is installed, also arranges and is enclosed with the mask tape.
High frequency sensors, sensor noise and shelf depreciation monitor are respectively arranged with PORT COM.
Distance between high frequency sensors and the sensor noise is less than 1.5m.
When the GIS apparatus local discharge occurs, electromagnetic signal according to the GIS repeated structure propagate, reflect, reflect, delay, the phenomenon such as decay, emit to the external world by disc insulator.By the electromagnetic wave that disc insulator leaks, the high frequency sensors by high sensitivity internally-arranged type or externally positioned type detects.Detect the electromagnetic wave signal that GIS device interior shelf depreciation excites by high frequency sensors, the signal that detects is through behind filtering, lawnmower amplifier and the wave detector, by high-Speed Data-Acquisition Module sample, storage, digital signal processing and analysis, deliver to the monitoring of partial discharge monitoring instrument.
The beneficial effects of the utility model are:
(1) reduces maintenance cost
The method that China adopts at present is regular power failure test, inspection and maintenance.Routine test need arrange the power failure plan, and it is required to expire, and does not take into full account device physical status, causes many excess maintenances, has caused a large amount of consumption of manpower and material resources; And status monitoring has replaced routine test take state as benchmark, and maintenance cost can reduce by 40%.
(2) avoid fault to occur
Routine test is the potential faults of discovering device inside in time, and the test that has a power failure applies the trial voltage that is lower than working voltage, and is also sensitive not to some reflection; Monitoring adopts more highly sensitive sensor to gather apparatus insulated deteriorated information in service, the processing of quantity of information and identification also depend on the computer network that enriches software support, not only can be some test event in linearize, but also can introduce the characteristic quantity of some new truer reflection equipment running status, thereby realize the comprehensive diagnos to equipment long journey state.
(3) equipment performance is assessed
By status monitoring to understanding and grasping that equipment running status carries out, can be to usability, the operation life of equipment, utilize degree to assess in order to adjust use, thus increase economic efficiency.
Description of drawings
Fig. 1 is structural principle synoptic diagram of the present utility model.
Wherein: 1-GIS equipment, 2-high frequency sensors, 3-sensor noise, 4-disc insulator.
Embodiment
Describe preferred embodiment of the present utility model in detail below in conjunction with accompanying drawing.
Embodiment as shown in Figure 1, present embodiment provides a kind of GIS apparatus local discharge monitoring device, the GIS equipment 1 that disc insulator 4 is installed is monitored, comprise high frequency sensors 2, sensor noise 3, mask tape and shelf depreciation monitor, high frequency sensors 2 frequency ranges are 500-1500MHz, the sensor sensing degree is less than 5PC, impedance matching 50 Ω, the frequency range of sensor noise 3 is 300-3000MHz, impedance matching 50 Ω, high frequency sensors 2 is bolted the outside of the disc insulator 4 that is arranged on GIS equipment 1 seam crossing is installed, perhaps also can adopt built-in high frequency sensors 2 to be directly installed on the inside of GIS equipment 1, GIS equipment 1 is installed seam crossing with the outside of disc insulator 4, and except the place of high frequency sensors 2 is installed, other seam crossings also arrange and are enclosed with the mask tape.Sensor noise 3 is fixedly installed on outside the GIS equipment by magnetite, and approaching with the position of high frequency sensors 2, distance between the two is set to 50cm.
When GIS equipment 1 shelf depreciation occurs, electromagnetic signal according to GIS equipment 1 repeated structure propagate, reflect, reflect, delay, the phenomenon such as decay, emit to the external world by disc insulator 4.By the electromagnetic wave that disc insulator 4 leaks, the high frequency sensors 2 by high sensitivity internally-arranged type or externally positioned type detects.Detect the electromagnetic wave signal that GIS equipment 1 inner shelf depreciation excites by high frequency sensors 2, the signal that detects is through behind filtering, lawnmower amplifier and the wave detector, by high-Speed Data-Acquisition Module sample, storage, digital signal processing and analysis, deliver to the monitoring of partial discharge monitoring instrument.
The beneficial effect of present embodiment is in time to avoid equipment failure generation and equipment state assessment, reduces equipment maintenance cost.
Claims (4)
1. GIS apparatus local discharge monitoring device, GIS equipment is monitored, comprise high frequency sensors, sensor noise and shelf depreciation monitor, GIS equipment also comprises disc insulator, it is characterized in that: high frequency sensors is fixedly installed on the outside installation seam crossing of GIS equipment and disc insulator or is directly installed on the inside of GIS equipment, sensor noise is fixedly installed on outside the GIS equipment, and the output signal of high frequency sensors and sensor noise links to each other with the shelf depreciation monitor respectively.
2. a kind of GIS apparatus local discharge monitoring device according to claim 1 is characterized in that: seam crossing is installed in the outside of GIS equipment and disc insulator, and the place of high frequency sensors is not installed, and also arranges and is enclosed with the mask tape.
3. a kind of GIS apparatus local discharge monitoring device according to claim 1 and 2, it is characterized in that: high frequency sensors, sensor noise and shelf depreciation monitor are respectively arranged with PORT COM.
4. a kind of GIS apparatus local discharge monitoring device according to claim 3, it is characterized in that: the distance between high frequency sensors and the sensor noise is less than 1.5m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220423285.6U CN202870239U (en) | 2012-08-24 | 2012-08-24 | GIS equipment partial discharge monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220423285.6U CN202870239U (en) | 2012-08-24 | 2012-08-24 | GIS equipment partial discharge monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202870239U true CN202870239U (en) | 2013-04-10 |
Family
ID=48036948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220423285.6U Expired - Lifetime CN202870239U (en) | 2012-08-24 | 2012-08-24 | GIS equipment partial discharge monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202870239U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104142177A (en) * | 2013-11-29 | 2014-11-12 | 国家电网公司 | Test device used for measuring partial discharge signal attenuation in ultrasonic method |
| CN106291266A (en) * | 2015-05-25 | 2017-01-04 | 国家电网公司 | A kind of shelf depreciation In-circiut tester |
-
2012
- 2012-08-24 CN CN201220423285.6U patent/CN202870239U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104142177A (en) * | 2013-11-29 | 2014-11-12 | 国家电网公司 | Test device used for measuring partial discharge signal attenuation in ultrasonic method |
| CN104142177B (en) * | 2013-11-29 | 2018-04-20 | 国家电网公司 | The experimental rig of supercritical ultrasonics technology local discharge signal attenuation measurement |
| CN106291266A (en) * | 2015-05-25 | 2017-01-04 | 国家电网公司 | A kind of shelf depreciation In-circiut tester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130410 |