CN203965537U - The long-range insulated on-line monitoring system of high voltage installation - Google Patents
The long-range insulated on-line monitoring system of high voltage installation Download PDFInfo
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- CN203965537U CN203965537U CN201420340453.4U CN201420340453U CN203965537U CN 203965537 U CN203965537 U CN 203965537U CN 201420340453 U CN201420340453 U CN 201420340453U CN 203965537 U CN203965537 U CN 203965537U
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- monitoring system
- high voltage
- long
- line monitoring
- voltage installation
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Abstract
The utility model discloses the long-range insulated on-line monitoring system of a kind of high voltage installation; belong to power technology field, it comprises some groups of sensors, and described some groups of sensors join with switch respectively; and; switch is also connected with light current protective device, and described light current protective device divides two-way output, and a road and signal acquisition module are joined; another road is connected with controller; wherein, controller is connected with control module, and described control module is connected with remote computer by modulator-demodular unit.This system architecture is simple, and can find in time and abatement apparatus occurs early potential safety hazard.
Description
Technical field
The utility model relates to the long-range insulated on-line monitoring system of a kind of high voltage installation, belongs to power technology field.
Background technology
In electrical network, the blast of oil immersion mutual inductor and bushing shell for transformer explode and cause that main transformer burns out etc. accident at home and abroad occurs time and again, have caused huge loss.The safe operation of 110kV～500kV transformer station high voltage installation is the basis of electric power netting safe running, and in order to strengthen the insulation control to high voltage installation, utilizing insulated on-line monitoring system to carry out frequent monitoring to high voltage installation is one of strong means.
Summary of the invention
The utility model is in order to solve the problems of the technologies described above, thereby provides a kind of high voltage installation long-range insulated on-line monitoring system, and this system architecture is simple, and can find in time and abatement apparatus occurs early potential safety hazard.
The long-range insulated on-line monitoring system of a kind of high voltage installation; it comprises some groups of sensors; described some groups of sensors join with switch respectively; and switch is also connected with light current protective device, described light current protective device divides two-way output, and a road and signal acquisition module are joined; another road is connected with controller; wherein, controller is connected with control module, and described control module is connected with remote computer by modulator-demodular unit.
Described switch is also connected with voltage transformer (VT).
Described acquisition module is connected with I/O interfacing equipment.
Described sensor adopts passive sensor.
The beneficial effects of the utility model are:
A, insulated on-line monitoring system employing passive sensor, observing and controlling are partly positioned at pulpit, cable can improve the functional reliability of whole system greatly without the first-class measure of indirect;
B, native system Monitoring Data accurately, monitoring system working stability, met power plant application requirement;
C, remote monitoring are conducive to the safe operation of Function and the monitored equipment of insulated on-line monitoring system.
Accompanying drawing explanation
Fig. 1 is the utility model system architecture schematic diagram;
Fig. 2 is the utility model monitoring system measuring principle figure.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 1: the long-range insulated on-line monitoring system of a kind of high voltage installation; it comprises some groups of sensors; some groups of sensors join with switch respectively; and switch is also connected with light current protective device, light current protective device divides two-way output, and a road and signal acquisition module are joined; another road is connected with controller; wherein, controller is connected with control module, and control module is connected with remote computer by modulator-demodular unit.Switch is also connected with voltage transformer (VT).Acquisition module is connected with I/O interfacing equipment.Sensor adopts passive sensor.
The Leakage Current I of high voltage installation under working voltage obtained by sensor, working voltage U is obtained by voltage transformer secondary voltage, and detection system is carried out phase bit comparison and mathematical operation and obtains angle and dielectric loss tan value and the electric capacity C value (seeing Fig. 2) in polar plot I and U.
In Fig. 2, I and U can produce variation in various degree by reception and the rear phase place of processing of monitoring system all parts, cause measuring error, therefore to monitoring equipment, on hardware, taking some schemes to protect is all voltage signals, phase place now and size be the condition of corresponding circuits itself all, by control module acquisition and recording.And signal collected phase place and large young pathbreaker deducts impact above when by current signal, to obtain real phase place and size.
Because this partial circuit is positioned at the pulpit in power station, working environment is relatively better, undesired signal can not amplified on the spot, thereby greatly reduce the impact on measuring circuit such as the interference of electromagnetic field, earth potential interference, accuracy and anti-interference are all good, and long-term work is reliable and stable, and device lifetime is long.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. the long-range insulated on-line monitoring system of high voltage installation; it comprises some groups of sensors; it is characterized in that: described some groups of sensors join with switch respectively, and switch is also connected with light current protective device; described light current protective device divides two-way output; one tunnel and signal acquisition module are joined, and another road is connected with controller, wherein; controller is connected with control module, and described control module is connected with remote computer by modulator-demodular unit.
2. the long-range insulated on-line monitoring system of high voltage installation according to claim 1, is characterized in that: described switch is also connected with voltage transformer (VT).
3. the long-range insulated on-line monitoring system of high voltage installation according to claim 1, is characterized in that: described acquisition module is connected with I/O interfacing equipment.
4. the long-range insulated on-line monitoring system of high voltage installation according to claim 1, is characterized in that: described sensor adopts passive sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420340453.4U CN203965537U (en) | 2014-06-25 | 2014-06-25 | The long-range insulated on-line monitoring system of high voltage installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420340453.4U CN203965537U (en) | 2014-06-25 | 2014-06-25 | The long-range insulated on-line monitoring system of high voltage installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203965537U true CN203965537U (en) | 2014-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420340453.4U Expired - Fee Related CN203965537U (en) | 2014-06-25 | 2014-06-25 | The long-range insulated on-line monitoring system of high voltage installation |
Country Status (1)
| Country | Link |
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| CN (1) | CN203965537U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104865504A (en) * | 2015-04-03 | 2015-08-26 | 北京航天自动控制研究所 | Long-distance test, launch and control insulation monitoring device |
-
2014
- 2014-06-25 CN CN201420340453.4U patent/CN203965537U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104865504A (en) * | 2015-04-03 | 2015-08-26 | 北京航天自动控制研究所 | Long-distance test, launch and control insulation monitoring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 Termination date: 20150625 |
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| EXPY | Termination of patent right or utility model |