CN207116777U - A kind of small-signal for Auto-Test System changes plug-in unit - Google Patents
A kind of small-signal for Auto-Test System changes plug-in unit Download PDFInfo
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- CN207116777U CN207116777U CN201720929488.5U CN201720929488U CN207116777U CN 207116777 U CN207116777 U CN 207116777U CN 201720929488 U CN201720929488 U CN 201720929488U CN 207116777 U CN207116777 U CN 207116777U
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- 238000012360 testing method Methods 0.000 title claims abstract description 48
- 238000006243 chemical reaction Methods 0.000 claims abstract description 24
- 230000001681 protective effect Effects 0.000 claims description 8
- 230000008054 signal transmission Effects 0.000 claims description 4
- 239000003086 colorant Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000012428 routine sampling Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
It the utility model is related to relay protection of power system testing field, and in particular to a kind of small-signal for Auto-Test System changes plug-in unit.Small-signal conversion plug-in unit substitutes conventional AC plug-in application in Auto-Test System; the small-signal that digital test instrument exports is directly accessed adopting for protection device through small-signal conversion plug-in unit and protects loop, while the quantity of input terminal and packet can concrete configurations as needed.The utility model is realized with application of the digital test instrument to conventional equipment analog quantity, improves testing efficiency.Plug-in unit and protection device are changed to combine small-signal by fixing component simultaneously, it is simple in construction easy to operate, also allow for follow-up maintenance.
Description
Technical field
It the utility model is related to relay protection of power system testing field, and in particular to a kind of for Auto-Test System
Small-signal changes plug-in unit.
Background technology
With the fast development of intelligent station, product test amount increases severely, product category is more, software version is more in test process,
Modification often waits problem " more than three " to bring the key issue that the puzzlement such as test event repetition, uninteresting is tested, and substantially reduces survey
Try quality and testing efficiency.Auto-Test System in recent years based on digital relay protection tester independent development, in intelligence
Stand and played positive role in product test.Digital relay protection tester is mainly for the intelligence using electronic mutual inductor
Stand relay protection products, export as SV and small-signal.And relay protection products sample mode is mainly SV and routine sampling at present.
For the product of SV samplings, digital relay protection tester various functions are tailored, and Auto-Test System is instantaneous results, and is carried
High testing efficiency 30%~50%.For the product of routine sampling, because the output of digital test instrument is unable to meet demand, big portion
Man of subsidiary factory employs the non-closed loop automatic testing system based on traditional tester.If this pattern is not broken, on the one hand, element
Protection needs multigroup voltage x current source, traditional tester resource-constrained, and separate unit tester can not meet to test needs；The opposing party
Face, a set of Auto-Test System of redevelopment of still needing, and the intelligent station product test use-case worked out can not be utilized, cause out
Send out cost increase.
Utility model content
The purpose of this utility model is to provide a kind of small-signal for Auto-Test System and changes plug-in unit, to solve to pass
The input of the exchange plug-in unit of protective relaying device and the unmatched problem of output of digital test instrument in unified test method for testing.
To achieve the above object, scheme of the present utility model includes a kind of small-signal conversion plug for Auto-Test System
Part, including the small-signal change-over panel of signal transmission passage is disposed with, one end of the small-signal change-over panel is provided with one vertically
In the TIP of the small-signal change-over panel, the other end of the small-signal change-over panel is provided with lead-out terminal, the input
At least two groups of input terminals are provided with panel；The input terminal and the lead-out terminal pass through on the small-signal change-over panel
Signal transmission passage connection；Chute in the structure and protective relaying device of the small-signal change-over panel side matches.
The beneficial effects of the utility model are：By setting at least two groups of input terminals, small-signal conversion plug-in unit substitution passes
System exchange plug-in application directly connects the small-signal that digital test instrument exports through small-signal conversion plug-in unit in Auto-Test System
Enter adopting for protective relaying device and protect loop, realize with application of the digital test instrument to GPF (General Protection False unit simulation amount.
Further, every group of input terminal comprises at least two input terminals, and the input terminal in every group of group is not respectively with
Distinguished with color, the color and the color of digital test instrument lead-out terminal of the input terminal match.
Further, the small-signal conversion plug-in unit includes making the small-signal conversion plug-in unit be fixed on protective relaying device
On fixing component.
Further, the fixing component is snap features.
Further, the lead-out terminal includes 64 pin P terminals.
Further, the small-signal conversion plug-in unit includes low pressure plug-in unit, high pressure 4U plug-in units and high pressure 6U plug-in units.
Further, the small-signal change-over panel is pcb board.
The utility model further has the beneficial effect that：Simultaneously by fixing component come combine small-signal change plug-in unit and after
Electrical protective device, it is simple in construction easy to operate, also allow for follow-up maintenance；Input terminal in every group of group sets different colors,
And the color of input terminal and the color of digital test instrument lead-out terminal match, and mistake occur when avoiding wiring.
Brief description of the drawings
Fig. 1 is the schematic diagram that a kind of small-signal for Auto-Test System of the utility model changes plug-in unit；
Fig. 2 is the structure chart of small-signal conversion plug-in unit；
Fig. 3 is the assembling schematic diagram of small-signal conversion plug-in unit and protection device；
Fig. 4 is the snap features location drawing.
Embodiment
The utility model is described in more detail below in conjunction with the accompanying drawings.
The exchange plug-in unit of routine sampling device is that the voltage of routine transformer output, current signal are passed through into protection device
Voltage, curent change device are converted to small voltage signal and export small to guarantor loop, the small voltage signal and digitlization tester is adopted
Voltage signal can match, and be to realize basis that routine sampling device tests automatically using small-signal conversion plug-in unit.
As shown in figure 1, small-signal conversion plug-in unit sets multigroup input terminal, it can input what more digitlization testers exported
Small-signal, protection device is directly inputted after small-signal conversion plug-in unit transmission adopts guarantor loop, and small voltage signal is protected back by adopting
After road carries out signal transacting, for relay protective scheme processing.
It is illustrated in figure 2 the structure chart of small-signal conversion plug-in unit, including the conversion of TIP 1, input terminal 2, small-signal
Plate 3 and lead-out terminal 4.TIP 1 can flexibly set multigroup input terminal 2, can be free according to test needs during actual test
It is defined as two groups of voltages, two groups of electric currents, or the various modes such as one group of voltage, three groups of electric currents.Every group of input terminal 2 is not respectively with
Same color is distinguished, and the color of input terminal 2 can match the color of digitlization tester lead-out terminal, self-defined wiring when side
Just distinguish, avoid human factor from causing wiring error.On small-signal change-over panel 3 multipath signal propagation Channel front end by wire with
Input terminal 2 is reliably connected on TIP 1, and rear end passes through scolding tin and the terminal pin seamless welding of lead-out terminal 4.Small-signal turns
It is pcb board to change plate 3, and the wiring on the pcb board has anti-tampering processing.
The assembling schematic diagram of small-signal conversion plug-in unit and protection device is illustrated in figure 3, is illustrated in figure 4 snap features 7.
By small-signal conversion plug-in unit alignment protection device exchange plug-in unit limit sliding chutes 6 during installation, small-signal conversion plug-in unit lead-out terminal 4 with
Input terminal on protection device backboard is reliably connected, fixed card buckle component 7.
It is presented above the embodiment that the utility model is related to, small-signal conversion plug-in unit substitution conventional AC plug-in unit
Applied to Auto-Test System, the small-signal that digital test instrument exports is directly accessed protection device through small-signal conversion plug-in unit
Adopt and protect loop, realize with application of the digital test instrument to conventional equipment analog quantity, improve testing efficiency.Pass through simultaneously
Fixing component changes plug-in unit and protection device to combine small-signal, simple in construction easy to operate, also allows for follow-up maintenance.
But the utility model is not limited to described embodiment, such as input terminal 2 does not use color to distinguish, but
Made a distinction using other modes, such as be distinguish between by different outer shapes, or change fixing component position and
Structure, it is all in this reality either to change TIP or the fixed form of lead-out terminal and small-signal change-over panel, these methods
With under the new thinking provided, using by the way of being readily apparent that to those skilled in the art to the technology in above-described embodiment
The conversion of means progress, substitutions and modifications, these technical schemes are still fallen within the scope of protection of the utility model.
Claims (7)
1. a kind of small-signal for Auto-Test System changes plug-in unit, it is characterised in that：Including being disposed with signal transmission passage
Small-signal change-over panel, one end of the small-signal change-over panel is provided with an input face perpendicular to the small-signal change-over panel
Plate, the other end of the small-signal change-over panel are provided with lead-out terminal, and at least two groups of inputs are provided with the TIP
Son；The input terminal is connected with the lead-out terminal by the signal transmission passage on the small-signal change-over panel；It is described small
Chute in the structure and protective relaying device of signal transducer side matches.
2. a kind of small-signal for Auto-Test System changes plug-in unit according to claim 1, it is characterised in that：Every group defeated
Entering terminal includes at least two input terminals, and the input terminal in every group of group is distinguished with different colours respectively, the input terminal
Color and the color of digital test instrument lead-out terminal match.
3. a kind of small-signal for Auto-Test System according to claim 1 or claim 2 changes plug-in unit, it is characterised in that：Institute
Stating small-signal conversion plug-in unit includes making the small-signal conversion plug-in unit be fixed on the fixing component on protective relaying device.
4. a kind of small-signal for Auto-Test System changes plug-in unit according to claim 3, it is characterised in that：It is described solid
It is snap features to determine component.
5. a kind of small-signal for Auto-Test System changes plug-in unit according to claim 1, it is characterised in that：It is described defeated
Going out terminal includes 64 pin P terminals.
6. a kind of small-signal for Auto-Test System changes plug-in unit according to claim 1, it is characterised in that：It is described small
Signal conversion plug-in unit includes low pressure plug-in unit, high pressure 4U plug-in units and high pressure 6U plug-in units.
7. a kind of small-signal for Auto-Test System changes plug-in unit according to claim 1, it is characterised in that：It is described small
Signal transducer is pcb board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720929488.5U CN207116777U (en) | 2017-07-27 | 2017-07-27 | A kind of small-signal for Auto-Test System changes plug-in unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720929488.5U CN207116777U (en) | 2017-07-27 | 2017-07-27 | A kind of small-signal for Auto-Test System changes plug-in unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207116777U true CN207116777U (en) | 2018-03-16 |
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ID=61572243
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720929488.5U Expired - Fee Related CN207116777U (en) | 2017-07-27 | 2017-07-27 | A kind of small-signal for Auto-Test System changes plug-in unit |
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| Country | Link |
|---|---|
| CN (1) | CN207116777U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112748269A (en) * | 2020-12-03 | 2021-05-04 | 国网山东省电力公司青岛供电公司 | Function expansion current-voltage conversion device and method applied to relay protection tester |
-
2017
- 2017-07-27 CN CN201720929488.5U patent/CN207116777U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112748269A (en) * | 2020-12-03 | 2021-05-04 | 国网山东省电力公司青岛供电公司 | Function expansion current-voltage conversion device and method applied to relay protection tester |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180316 Termination date: 20200727 |
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| CF01 | Termination of patent right due to non-payment of annual fee |