CN202614831U - Transient overvoltage on-line monitoring system - Google Patents
Transient overvoltage on-line monitoring system Download PDFInfo
- Publication number
- CN202614831U CN202614831U CN 201220107456 CN201220107456U CN202614831U CN 202614831 U CN202614831 U CN 202614831U CN 201220107456 CN201220107456 CN 201220107456 CN 201220107456 U CN201220107456 U CN 201220107456U CN 202614831 U CN202614831 U CN 202614831U
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- Prior art keywords
- monitoring
- transient
- line monitoring
- partial pressure
- transient overvoltage
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- 230000001052 transient Effects 0.000 title claims abstract description 23
- 238000002955 isolation Methods 0.000 claims abstract description 10
- 230000001012 protector Effects 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000007781 pre-processing Methods 0.000 description 3
- 238000004321 preservation Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010616 electrical installation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000033772 system development Effects 0.000 description 1
Abstract
The utility model relates to a transient overvoltage on-line monitoring system which is connected with a power grid. The monitoring system comprises partial pressure sensors, an isolation protector, a transient voltage recorder and an industrial control computer which are sequentially connected. The partial pressure sensors are connected with the power grid. Compared with the prior art, the monitoring system provided in the utility model has the advantages of dynamically collecting voltage signals of the power grid in a real-time manner and performing real-time overvoltage monitoring on the power grid system, etc.
Description
Technical field
The utility model relates to a kind of power network overvoltage monitoring system, especially relates to a kind of transient overvoltage on-line monitoring system.
Background technology
At present, inner along with power system development in electric system, recognized transient state process of electric power system very early, i.e. Hyper-Voltage of Power Systems is to the influence of insulation of electrical installation.Therefore very necessary when monitoring in real time for the superpotential of electrical network, also received people's attention.
For example; One Chinese patent application numbers 200510057043.4; The applying date is on April 30th, 2005; The name of innovation and creation is called " power distribution network over-voltage on-line monitoring device and method ", and this application case discloses a kind of device, comprises high-voltage bleeder, signal pre-processing circuit; Trigger circuit, data collecting card, working power, industrial control computer and connect high-voltage bleeder and signal pre-processing circuit, trigger circuit concentric cable, be connected the signal cable of signal pre-processing circuit, trigger circuit and data collecting card.
One Chinese patent application numbers 201020162307.9; The applying date is on April 19th, 2010, and the name of innovation and creation is called " power network overvoltage monitoring device ", and this application case discloses a kind of device; Comprise voltage transformer (VT), over-current over-voltage protection unit, partial pressure unit, isolated location, data acquisition unit, host computer; Display unit, voltage transformer (VT) are connected on the high voltage bus of electrical network, and the secondary side of voltage transformer (VT) connects the over-current over-voltage protection unit; Over-current over-voltage protection unit, isolated location, data acquisition unit, host computer are connected successively, and host computer connects display unit.
Existing these technology have solved the subproblem of over-voltage monitoring from different angles, but they all fail to solve well the problem of the preservation and the transmission of data.
The utility model content
The purpose of the utility model is exactly for the defective that overcomes above-mentioned prior art existence a kind of transient overvoltage on-line monitoring system to be provided.
The purpose of the utility model can realize through following technical scheme:
A kind of transient overvoltage on-line monitoring system; This monitoring system is connected with electrical network; It is characterized in that described monitoring system comprises partial pressure sensor, Isolation protector, transient voltage registering instrument and the industrial computer that connects successively, described partial pressure sensor is connected with electrical network.
Described partial pressure sensor is connected with Isolation protector through transmission cable.
Described transient voltage registering instrument comprises A/D converter and storer, and described A/D converter is connected with storer, Isolation protector, industrial computer respectively.
Described A/D converter is connected with industrial computer through telecommunication cable.
Compared with prior art; The utlity model has Real-time and Dynamic and gather the voltage signal of electrical network; Network system is carried out real-time over-voltage monitoring, the amplitude of each phase voltage, waveform and the various parameter before and after the fault when writing down and preserving the transient overvoltage generation simultaneously, easy access.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is elaborated.
Embodiment
As shown in Figure 1; A kind of transient overvoltage on-line monitoring system; This monitoring system is connected with electrical network 1, and described monitoring system comprises partial pressure sensor 2, Isolation protector 4, transient voltage registering instrument 5 and the industrial computer 7 that connects successively, and described partial pressure sensor 2 is connected with electrical network 1.Described partial pressure sensor 2 is connected with Isolation protector 4 through transmission cable 3.Described transient voltage registering instrument 5 comprises A/D converter and storer, and described A/D converter is connected with storer, Isolation protector 4, industrial computer 7 respectively.Described A/D converter is connected with industrial computer 7 through telecommunication cable 6.
The utility model by means of Signal Collection Technology, is monitored the voltage disturbance of network system through partial pressure sensor 2 in real time, the amplitude of each phase voltage, waveform and the various parameter before and after the fault when record and preservation transient overvoltage take place.And have signal Processing and parameter extraction, application and analyze (warning, the inquiry of historical data and statistics etc.) function.Industrial computer 7 also can pass through Ethernet or other communication modes are formed transient overvoltage monitoring system network.For the transient overvoltage monitoring device of different electric pressures, its key property depends on the voltage divider working method of selecting for use.
Claims (4)
1. transient overvoltage on-line monitoring system; This monitoring system is connected with electrical network; It is characterized in that described monitoring system comprises partial pressure sensor, Isolation protector, transient voltage registering instrument and the industrial computer that connects successively, described partial pressure sensor is connected with electrical network.
2. a kind of transient overvoltage on-line monitoring system according to claim 1 is characterized in that, described partial pressure sensor is connected with Isolation protector through transmission cable.
3. a kind of transient overvoltage on-line monitoring system according to claim 1 is characterized in that described transient voltage registering instrument comprises A/D converter and storer, and described A/D converter is connected with storer, Isolation protector, industrial computer respectively.
4. a kind of transient overvoltage on-line monitoring system according to claim 3 is characterized in that, described A/D converter is connected with industrial computer through telecommunication cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220107456 CN202614831U (en) | 2012-03-20 | 2012-03-20 | Transient overvoltage on-line monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220107456 CN202614831U (en) | 2012-03-20 | 2012-03-20 | Transient overvoltage on-line monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202614831U true CN202614831U (en) | 2012-12-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220107456 Expired - Lifetime CN202614831U (en) | 2012-03-20 | 2012-03-20 | Transient overvoltage on-line monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202614831U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344821A (en) * | 2013-06-25 | 2013-10-09 | 国家电网公司 | Transient overvoltage on-line monitoring system based on CVT and provided with built-in low-voltage capacitor |
| CN104101773A (en) * | 2014-07-28 | 2014-10-15 | 四川通源电力科技有限公司 | Electrical power system transient overvoltage acquisition system |
| CN104820148A (en) * | 2015-05-05 | 2015-08-05 | 云南电网有限责任公司电力科学研究院 | Over-voltage measurement and simulation test platform of power transmission line |
| CN106291074A (en) * | 2016-07-28 | 2017-01-04 | 孙文兵 | A kind of 35kV transformer station on-line overvoltage monitor |
-
2012
- 2012-03-20 CN CN 201220107456 patent/CN202614831U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344821A (en) * | 2013-06-25 | 2013-10-09 | 国家电网公司 | Transient overvoltage on-line monitoring system based on CVT and provided with built-in low-voltage capacitor |
| CN104101773A (en) * | 2014-07-28 | 2014-10-15 | 四川通源电力科技有限公司 | Electrical power system transient overvoltage acquisition system |
| CN104101773B (en) * | 2014-07-28 | 2017-01-18 | 四川通源电力科技有限公司 | Electrical power system transient overvoltage acquisition system |
| CN104820148A (en) * | 2015-05-05 | 2015-08-05 | 云南电网有限责任公司电力科学研究院 | Over-voltage measurement and simulation test platform of power transmission line |
| CN106291074A (en) * | 2016-07-28 | 2017-01-04 | 孙文兵 | A kind of 35kV transformer station on-line overvoltage monitor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| C14 | Grant of patent or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121219 |
|
| CX01 | Expiry of patent term |