CN209373027U - The winding polarity test device of current transformer - Google Patents
The winding polarity test device of current transformer Download PDFInfo
- Publication number
- CN209373027U CN209373027U CN201821909433.9U CN201821909433U CN209373027U CN 209373027 U CN209373027 U CN 209373027U CN 201821909433 U CN201821909433 U CN 201821909433U CN 209373027 U CN209373027 U CN 209373027U
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- fixed column
- current transformer
- test
- module
- lower cover
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- 238000012360 testing method Methods 0.000 title claims abstract description 77
- 238000004804 winding Methods 0.000 title claims abstract description 23
- 239000004973 liquid crystal related substance Substances 0.000 claims description 10
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 description 6
- 230000003760 hair shine Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000011895 specific detection Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model discloses the winding polarity test devices of current transformer, comprising: by the shell of upper cover and lower cover fastening, the first opening and the second opening is arranged on upper lid, display device, power supply module and test module is arranged in interior of shell；Display device is arranged in the interior of shell of the first opening and is tightly connected with the first opening；The lower section of display device is arranged in test module, operation panel is arranged in second opening, power supply module is arranged in the lower section of operation panel, power supply module is connect with operation panel, test module and display device, and the first fixed column, the second fixed column, third fixed column and the 4th fixed column for connecting with current transformer is arranged in the bottom of lower cover；Four binding posts for being electrically connected with test module are arranged in the inside of lower cover, and wherein binding post extends to the outside of lower cover and connect with four fixed columns of bottom.The utility model can fast and accurately test out the Same Name of Ends of current transformer winding, test easy-to-connect, fast.
Description
Technical field
The utility model relates to the field of test technology of current transformer, and in particular to the winding polarity of current transformer is surveyed
Trial assembly is set.
Background technique
Current transformer is important current transformation equipment, and output signal is unique as the devices such as protection, observing and controlling, metering
Current data source, have great importance to the safe operation of the even entire power grid of substation.Current transformer polarity is surveyed
Examination is an important electrical test, and correct connection and the current transformer in secondary current circuit can be ensured from data source header
The correct solderless wrapped connection of coil.
Currently, conventional electromagnetic current transformer can also use in substation, light number is transformed to through combining unit MU
Signal output, conventional electromagnetic current transformer dispatch from the factory when still can be used Traditional DC method carry out polarity test, but also there are still
The problems such as wiring is complicated, and test result can not be saved and be analyzed, low efficiency.At intelligent substation scene, using Traditional DC method
Polarity test is related to changing combining unit wiring, and prepares the milliammeter of different ranges or micro- according to no-load voltage ratio of current transformer etc.
Pacify table, test wiring is complicated, inefficient.
Utility model content
The technical problem to be solved by the utility model is in view of the deficiency of the prior art, it is mutual disclose electric current
The winding polarity test device of sensor.
The technical solution adopted in the utility model is:
The winding polarity test device of current transformer, comprising: the shell fastened by upper cover and lower cover, the upper Gai Shangshe
Set the first opening and the second opening, the interior of shell setting display device, power supply module and test module；The display device
The interior of shell of first opening is set and is tightly connected with the first opening；The test module is arranged under display device
Operation panel is arranged in side, second opening, and power supply module, the power supply module and behaviour is arranged in the lower section of the operation panel
Make panel, test module is connected with display device, the bottom of the lower cover is arranged for connecting with current transformer first solid
Fixed column, the second fixed column, third fixed column and the 4th fixed column；The inside of the lower cover is arranged for being electrically connected with test module
Four binding posts, wherein binding post extends to the outside of lower cover and solid with the first fixed column, the second fixed column, third of bottom
Fixed column and the connection of the 4th fixed column.
As the further embodiment of the utility model, the test module uses pointer galvanometer, the power supply module
Anode connect by the control switch on operation panel with the first fixed column, the cathode of the power supply module and the second fixed column
The anode of connection, the third fixed column and pointer galvanometer connects, and the cathode of the 4th fixed column and pointer galvanometer connects
It connects.
As the further embodiment of the utility model, the test module shines including the first light emitting diode, second
Diode and liquid crystal display, wherein the first light emitting diode is connected in parallel on respectively between third fixed column and the 4th fixed column, described
Current tester is set between three fixed columns and the 4th fixed column, and the output end of the current tester connects liquid crystal display.
As the further embodiment of the utility model, power switch is also set up on the upper lid.
As the further embodiment of the utility model, fixation hole is respectively set in the upper cover and lower cover, upper cover is under
Lid is fixed by bolt across fixation hole.
Further, the power supply module uses rechargeable lithium battery, and charging interface is arranged in the side of corresponding lower cover.
The utility model has the following beneficial effects:
In the utility model embodiment, the cavity body structure that upper cover is constituted with lower cover plays a supporting role in protection, wherein testing
Module is for detecting the winding polarity of current transformer, specific detection process are as follows: and power supply is test module power supply,
Two input terminals and two output ends of test module and current transformer connect, and judge current transformer by test module
Same Name of Ends, power switch for being controlled test module power supply can be set on operation panel and for test
The control button that module is controlled.
The binding post being arranged inside lower cover with the input terminal of test module and output end for connecting, and wherein binding post passes through
First fixed column of lower cover and lower cover bottom, the second fixed column, third fixed column, the connection of the 4th fixed column, during the test,
Pass through two input terminals and two of the first fixed column, the second fixed column, third fixed column and the 4th fixed column and current transformer
A output end connection, display device is connect with test module, for showing to test result.Current transformer and the test
After device connection, the Same Name of Ends of current transformer winding can be fast and accurately tested out, tests easy-to-connect, fast.
Detailed description of the invention
Fig. 1 be the utility model proposes current transformer winding polarity test device main view；
Fig. 2 be the utility model proposes current transformer winding polarity test device rearview；
Fig. 3 be the utility model proposes current transformer winding polarity test device left view；
Fig. 4 be the utility model proposes a specific embodiment test chart；
Fig. 5 be the utility model proposes another specific embodiment test chart.
Specific embodiment
The utility model is described in detail in each embodiment shown in reference to the accompanying drawing, but it should be stated that,
These embodiments are not limitation of the utility model, those of ordinary skill in the art according to these embodiments made by function
Energy, method or equivalent transformation or substitution in structure, belong within the protection scope of the utility model.
Referring to Fig. 1 to Fig. 3, wherein Fig. 1 be the utility model proposes current transformer winding polarity test device master
View；Fig. 2 be the utility model proposes current transformer winding polarity test device rearview；Fig. 3 is the utility model
The winding polarity test device left view of the current transformer of proposition.
As shown in Figure 1 to Figure 3, the winding polarity test device of current transformer, comprising: fastened by upper cover 1 and lower cover 2
Shell, display device 3, power supply module is arranged in setting the first opening 11 and the second opening 12, the interior of shell in the upper cover 1
4 and test module 5；The display device 3 is arranged in the interior of shell at the first opening 11 and is tightly connected with the first opening 11；
The lower section of display device 3 is arranged in the test module 5, and operation panel 6, the operation panel is arranged at second opening 12
Power supply module 4 is arranged in 6 lower section, and the power supply module 4 is connect with operation panel 6, test module 5 and display device 3, under described
The first fixed column 21 for connecting with current transformer, the second fixed column 22, third fixed column 23 and the is arranged in the bottom of lid 2
Four fixed columns 24；Four binding posts for being electrically connected with test module 5 are arranged in the inside of the lower cover 2, and wherein binding post prolongs
It extends to the outside of lower cover and is connect with the first fixed column of bottom, the second fixed column, third fixed column and the 4th fixed column.
In the utility model embodiment, power switch 13 is also set up in upper cover 1, is respectively set on the upper cover 1 and lower cover 2
Fixation hole, upper cover are fixed by bolt across fixation hole with lower cover.
In the utility model embodiment, the cavity body structure that upper cover is constituted with lower cover plays a supporting role in protection, wherein testing
Module is for detecting the winding polarity of current transformer, specific detection process are as follows: and power supply is test module power supply,
Two input terminals and two output ends of test module and current transformer connect, and judge current transformer by test module
Same Name of Ends, power switch for being controlled test module power supply can be set on operation panel and for test
The control button that module is controlled.
The binding post being arranged inside lower cover with the input terminal of test module and output end for connecting, and wherein binding post passes through
First fixed column of lower cover and lower cover bottom, the second fixed column, third fixed column, the connection of the 4th fixed column, during the test,
Pass through two input terminals and two of the first fixed column, the second fixed column, third fixed column and the 4th fixed column and current transformer
A output end connection, display device is connect with test module, for showing to test result.
Referring to fig. 4, for the utility model proposes a specific embodiment test chart.
As shown in figure 4, test module 5 uses pointer galvanometer, the anode of the power supply module 4 passes through on operation panel 6
Control switch 61 connect with the first fixed column 21, the cathode of the power supply module 4 is connect with the second fixed column 22, the third
Fixed column 23 is connect with the anode of pointer galvanometer, and the 4th fixed column 24 is connect with the cathode of pointer galvanometer.
When test module uses pointer galvanometer, display device is the dial plate of pointer galvanometer, and input terminal setting control is pressed
Button controls test module.When pressing control button, that is, switch is connected, in the moment that is powered, observes the inclined of galvanometer pointer
Turn direction, if the pointer positive direction of galvanometer deflects, then it represents that current transformer connects the end of anode and connects galvanometer
The end of anode is Same Name of Ends (21,23)；If the pointer negative direction of galvanometer deflects, then it represents that current transformer is connecing battery just
The end of pole and the end for connecing galvanometer cathode are Same Name of Ends (2,4).
Referring to Fig. 5, for the utility model proposes another specific embodiment test chart.
As shown in figure 5, test module 5 includes the first light emitting diode, the second light emitting diode and liquid crystal display, wherein first
Light emitting diode is connected in parallel on respectively between third fixed column 23 and the 4th fixed column 24, and the third fixed column 23 and the 4th is fixed
Current tester is set between column 24, and the output end of the current tester connects liquid crystal display.
Test module includes the first light emitting diode, the second light emitting diode and liquid crystal display, wherein the first light emitting diode
It is connected in parallel between third fixed column and the 4th fixed column respectively, electric current is set between the third fixed column and the 4th fixed column and is surveyed
Instrument is tried, the output end of the current tester connects liquid crystal display.
When power switch is connected, light emitting diode and liquid crystal display indicate polarity, automatic trigger, the first light-emitting diodes simultaneously
Pipe and the second light emitting diode use different colours, such as the first light emitting diode to use red light emitting diodes, and second shines
Diode uses green LED, when red light emitting diodes are lighted, indicates that current transformer connects the end of anode
Head and the end for connecing galvanometer anode are Same Name of Ends (1,3)；When green LED is lighted, then it represents that current transformer connects
The end of anode and the end for connecing galvanometer cathode are Same Name of Ends (2,4), while liquid crystal display shows polarity.
Further, the power supply module 4 uses rechargeable lithium battery, and charging interface is arranged in the side of corresponding lower cover 2
25。
The basic principles and main features and the utility model advantage of the utility model have been shown and described above.Current row
The technical staff of industry it should be appreciated that the present utility model is not limited to the above embodiments, do not depart from the spirit of the present invention and
Under the premise of range, the utility model also has various changes and improvements, these changes and improvements both fall within claimed
Within the scope of utility model.The protection scope of the present invention is defined by the appended claims and their equivalents.
Claims (6)
1. the winding polarity test device of current transformer characterized by comprising the shell fastened by upper cover and lower cover, institute
It states and the first opening and the second opening is set on lid, the interior of shell setting display device, power supply module and test module；Institute
Display device is stated the interior of shell of the first opening is arranged in and is tightly connected with the first opening；The test module setting is aobvious
Operation panel is arranged in the lower section of showing device, second opening, and power supply module, the confession is arranged in the lower section of the operation panel
Electric module is connect with operation panel, test module and display device, and the bottom of the lower cover is arranged for connecting with current transformer
The first fixed column, the second fixed column, third fixed column and the 4th fixed column connect；The lower cover inside setting for test
Four binding posts of module electrical connection, wherein binding post extends to the outside of lower cover and consolidates with the first fixed column of bottom, second
Fixed column, third fixed column are connected with the 4th fixed column.
2. the winding polarity test device of current transformer according to claim 1, which is characterized in that the test module
Using pointer galvanometer, the anode of the power supply module is connect by the control switch on operation panel with the first fixed column, institute
The cathode for stating power supply module is connect with the second fixed column, and the anode of the third fixed column and pointer galvanometer connects, and described the
The connection of the cathode of four fixed columns and pointer galvanometer.
3. the winding polarity test device of current transformer according to claim 1, which is characterized in that the test module
Including the first light emitting diode, the second light emitting diode and liquid crystal display, consolidate wherein the first light emitting diode is connected in parallel on third respectively
Between fixed column and the 4th fixed column, current tester is set, the electric current is surveyed between the third fixed column and the 4th fixed column
The output end for trying instrument connects liquid crystal display.
4. the winding polarity test device of current transformer according to claim 1, which is characterized in that on the upper lid also
Power switch is set.
5. the winding polarity test device of current transformer according to claim 1, which is characterized in that the upper cover is under
It covers and fixation hole is respectively set, upper cover is fixed by bolt across fixation hole with lower cover.
6. the winding polarity test device of current transformer according to claim 1, which is characterized in that the power supply module
Using rechargeable lithium battery, charging interface is arranged in the side of corresponding lower cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821909433.9U CN209373027U (en) | 2018-11-19 | 2018-11-19 | The winding polarity test device of current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821909433.9U CN209373027U (en) | 2018-11-19 | 2018-11-19 | The winding polarity test device of current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209373027U true CN209373027U (en) | 2019-09-10 |
Family
ID=67837241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821909433.9U Active CN209373027U (en) | 2018-11-19 | 2018-11-19 | The winding polarity test device of current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209373027U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111025189A (en) * | 2020-01-08 | 2020-04-17 | 山东山大电力技术股份有限公司 | Low-current grounding line selection CT test system and test method |
-
2018
- 2018-11-19 CN CN201821909433.9U patent/CN209373027U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111025189A (en) * | 2020-01-08 | 2020-04-17 | 山东山大电力技术股份有限公司 | Low-current grounding line selection CT test system and test method |
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