CN203037779U - Test platform of transformer station capacitive device on-line monitoring system - Google Patents
Test platform of transformer station capacitive device on-line monitoring system Download PDFInfo
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- CN203037779U CN203037779U CN 201320020385 CN201320020385U CN203037779U CN 203037779 U CN203037779 U CN 203037779U CN 201320020385 CN201320020385 CN 201320020385 CN 201320020385 U CN201320020385 U CN 201320020385U CN 203037779 U CN203037779 U CN 203037779U
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- precision resister
- line monitoring
- precision
- monitoring system
- resister
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Abstract
The utility model discloses a test platform of a transformer station capacitive device on-line monitoring system constituted by a resistor, a capacitor, a multi-throw rotary type change-over switch, a sampling resistor, and a fuse. The test platform can be used to solve the test problem of the transformer station capacitive device on-line monitoring system. According to the utility model, the transformer station capacitive device can be accurately simulated, and the test platform can be used to change the dielectric loss value of the capacitive device by adjusting the resistance value, therefore the accuracy of the on-line monitoring system can be verified, and the reliable platform can be provided for the test of the on-line capacitive device on-line monitoring system.
Description
Technical field
The utility model relates to capacitive apparatus on-line monitoring system technical field of measurement and test, specifically is the test platform of transformer station's capacitive apparatus on-line monitoring system.
Background technology
Along with electric system develops to super (spy) high pressure, big capacity, big system, the safe operation of electric system is increasing to the influence of national economy and people's lives.And electrical equipment is the primary element of forming electric system, is the basis that guarantees power supply reliability, and the safe operation of electrical equipment is the prerequisite of power system security, stable, economical operation.Along with technology rapid development such as sensor, optical fiber, computing machines, under running status, the state of insulation of high voltage electric equipment is carried out real-time on-line monitoring and can obtain the operating abundant information of equipment, understand the real-time state of insulation of high voltage electric equipment.The insulation of electrical installation state is carried out the change information that real-time on-line monitoring can obtain apparatus insulated state parameter (leakage current, dielectric loss angle tan δ, current in resistance property etc.).At present, the On-line Monitoring of Leakage Current method at CVT, CT, lightning arrester in the transformer station has had large development.
Various insulation of electrical installation monitoring systems also emerge in an endless stream thereupon, according to power equipment on-Line Monitor Device performance demands, the precision of the on-Line Monitor Device of insulation of electrical installation state need reach relevant regulations, yet the debugging of the accuracy of on-line monitoring system is difficult for realizing, so if design artificial capacitor equipment and by calculating the correlation parameter of artificial capacitor, obtain the dielectric loss value of analog machine, the problem of on-line monitoring system debugging will be readily solved.
The utility model content
In order to solve the requirement of transformer station's capacitive apparatus on-line monitoring system precision, the utility model provides a kind of means for correcting of adjustable precision, i.e. the test platform of capacitive apparatus on-line monitoring system.It utilizes high-precision resistance and electric capacity, pass through reasonable parameter configuration, the variation precision that can guarantee the dielectric loss value of the capacitive apparatus of simulating reaches 0.1%, and the dielectric loss value of simulation capacitive apparatus is easy to adjust, therefore can provide calibration reference accurately for the capacitive apparatus test macro.
The technical scheme that the utility model solves the problems of the technologies described above is as follows:
The test platform of transformer station's capacitive apparatus on-line monitoring system by first precision resister, second precision resister, the 3rd precision resister, the 4th precision resister, the 5th precision resister, the 6th precision resister, the 7th precision resister, the 8th precision resister, high-accuracy capacitor, throw uniselector, sample resistance, fuse more and form, be installed in the box of insulation; The described uniselector of throwing is the switch that has digital Presentation Function, the position of the switch is shown more.Statistics have shown the throw uniselector of function by accommodation zone more, can change the different dielectric loss values with the display simulation capacitive apparatus, can verify the accuracy that on-line monitoring system is measured easily.
The annexation of above-mentioned each parts: first precision resister, second precision resister, the 3rd precision resister, the 4th precision resister, the 5th precision resister, the 6th precision resister, the 7th precision resister, the 8th precision resister all weld with throwing uniselector more, form a variable resistor; Variable resistor is connected with high-accuracy capacitor by first precision resister again, has formed artificial capacitor type apparatus, artificial capacitor type apparatus by high-accuracy capacitor with in parallel with sample resistance again after fuse is connected.
The utlity model has following beneficial effect:
1, adopt and to throw uniselector and digital indicator more, the dielectric loss value is regulated and is shown simple and conveniently, is easy to realization.
2, the variation scale of the dielectric loss value of capacitive apparatus is 0.1%, and the dielectric loss value that different gears is corresponding different is simple, clear;
3, secondary side device and tester's safety is guaranteed in the application of seal.
Description of drawings
Fig. 1 is the test platform architecture synoptic diagram of the utility model transformer station capacitive apparatus on-line monitoring system.
Among the figure, first precision resister, 1, the second precision resister 11, the 3rd precision resister 12, the 4th precision resister 13, the five precision resisters 14, the six precision resisters 15, the 7th precision resister 16, the 8th precision resister 17, high-accuracy capacitor 2 is thrown uniselector 3 more, sample resistance 4, fuse 5.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
The utility model structure as shown in Figure 1, the test platform of transformer station's capacitive apparatus on-line monitoring system by first precision resister 1, second precision resister 11, the 3rd precision resister 12, the 4th precision resister 13, the 5th precision resister 14, the 6th precision resister 15, the 7th precision resister 16, the 8th precision resister 17, high-accuracy capacitor 2, throw uniselector 3, sample resistance 4, fuse 5 more and form, be installed in the box of insulation.The described switch of uniselector 3 for having digital Presentation Function, the position of the switch being shown of throwing more, statistics have shown the uniselector of throwing of function by accommodation zone more, the different dielectric loss values with the display simulation capacitive apparatus can be changed, the accuracy that on-line monitoring system is measured can be verified easily.
The annexation of above-mentioned each parts: first precision resister 1, second precision resister 11, the 3rd precision resister 12, the 4th precision resister 13, the 5th precision resister 14, the 6th precision resister 15, the 7th precision resister 16, the 8th precision resister 17 all weld with throwing uniselector 3 more, form a variable resistor; Variable resistor is connected with high-accuracy capacitor 2 by first precision resister 1 again, has formed artificial capacitor type apparatus.It is in parallel with sample resistance 4 again after artificial capacitor type apparatus passes through high-accuracy capacitor 2 and fuse 5 is connected.
Above-mentioned test platform system, specifically adopt following steps to realize:
1, according to the degree of accuracy requirement to transformer station's capacitive apparatus on-line monitoring system, resistance value size and high-precision capacitance 2 sizes of selected first precision resister 1, second precision resister 11, the 3rd precision resister 12, the 4th precision resister 13, the 5th precision resister 14, the 6th precision resister 15, the 7th precision resister 16, the 8th precision resister 17 are selected suitable sample resistance according to the transducer range of on-line equipment and the restriction of resistor power.
2, fuse 5 can play the effect of current limliting, and the electric current of having avoided flowing through current sensor is excessive, causes capture card to damage because voltage surpasses range, has reduced unnecessary loss.
3, the digital indicator of throwing uniselector 3 can show the dielectric loss value of different resistance values correspondence accurately, flexible operation, and it is convenient to use.
But the utility model safety and stability for transformer station's capacitive apparatus on-line monitoring system provides test platform, the accuracy of guarantee measuring, and device is simple, is easy to carry about with one.
Claims (1)
1. the test platform of transformer station's capacitive apparatus on-line monitoring system, it is characterized in that: platform by first precision resister, second precision resister, the 3rd precision resister, the 4th precision resister, the 5th precision resister, the 6th precision resister, the 7th precision resister, the 8th precision resister, high-accuracy capacitor, throw uniselector, sample resistance, fuse more and form, be installed in the box of insulation; The described uniselector of throwing is the switch that has digital Presentation Function, the position of the switch is shown more;
The annexation of above-mentioned each parts: first precision resister, second precision resister, the 3rd precision resister, the 4th precision resister, the 5th precision resister, the 6th precision resister, the 7th precision resister, the 8th precision resister all weld with throwing uniselector more, form a variable resistor; Variable resistor is connected with high-accuracy capacitor by first precision resister again, has formed artificial capacitor type apparatus, artificial capacitor type apparatus by high-accuracy capacitor with in parallel with sample resistance again after fuse is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320020385 CN203037779U (en) | 2013-01-15 | 2013-01-15 | Test platform of transformer station capacitive device on-line monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320020385 CN203037779U (en) | 2013-01-15 | 2013-01-15 | Test platform of transformer station capacitive device on-line monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203037779U true CN203037779U (en) | 2013-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320020385 Expired - Fee Related CN203037779U (en) | 2013-01-15 | 2013-01-15 | Test platform of transformer station capacitive device on-line monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203037779U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103761577A (en) * | 2014-02-13 | 2014-04-30 | 广西电网公司电力科学研究院 | Capacitive type device auxiliary decision making system based on risk assessment and condition evaluation |
| CN113311299A (en) * | 2021-05-26 | 2021-08-27 | 广西电网有限责任公司南宁供电局 | CVT insulation defect detection method and device |
-
2013
- 2013-01-15 CN CN 201320020385 patent/CN203037779U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103761577A (en) * | 2014-02-13 | 2014-04-30 | 广西电网公司电力科学研究院 | Capacitive type device auxiliary decision making system based on risk assessment and condition evaluation |
| CN113311299A (en) * | 2021-05-26 | 2021-08-27 | 广西电网有限责任公司南宁供电局 | CVT insulation defect detection method and 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: 20130703 Termination date: 20160115 |
|
| EXPY | Termination of patent right or utility model |