CN206470385U - Portable DC insulation tester test device - Google Patents
Portable DC insulation tester test device Download PDFInfo
- Publication number
- CN206470385U CN206470385U CN201720132628.6U CN201720132628U CN206470385U CN 206470385 U CN206470385 U CN 206470385U CN 201720132628 U CN201720132628 U CN 201720132628U CN 206470385 U CN206470385 U CN 206470385U
- Authority
- CN
- China
- Prior art keywords
- electrically connected
- portable
- test device
- direct current
- display
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 24
- 238000009413 insulation Methods 0.000 title claims abstract description 23
- 238000002955 isolation Methods 0.000 abstract description 9
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 230000035945 sensitivity Effects 0.000 description 5
- 230000009849 deactivation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
Abstract
The utility model is related to DC power-supply system technical field of insulation detection, it is a kind of Portable DC insulation tester test device, it includes controller, display, variable rheostat, controlling switch and dc source, the output end of the controller is electrically connected with the input of display, the variable rheostat includes casing, positive power terminal, negative power source terminal and slide rheostat, the side wall of the casing is provided with wire hole, the top of the casing is provided with opening portion, the binding post of slide rheostat second is electrically connected with negative power source terminal, controlling switch normally-closed contact is electrically connected with the binding post of slide rheostat second, controlling switch normally opened contact with controller is two-way electrically connects.The utility model reasonable and compact in structure, it is easy to use, its by adjust slide rheostat gear realize D.C. isolation tester is verified in advance, improve DC power-supply system Insulation monitoring warning information accuracy, effectively eliminate potential safety hazard.
Description
Technical field
The utility model is related to DC power-supply system technical field of insulation detection, is a kind of Portable DC insulation tester
Test device.
Background technology
At present, the Insulation monitoring of DC power-supply system is generally divided into main road detection and branch road detection, existing test direct current
Power branch set-up mode is：The resistance value of one end ground connection is fixed, checking device ground connection in other end resistance concatenation branch-path
Routing function, is so unsatisfactory for the requirement of unit check, and reason is：First, resistance value is fixed can not to verify isolated dc
The degree of accuracy of detector, second, it is impossible to verify the sensitivity of the earthing or grounding means of branch-path in varying degrees, the 3rd, it is impossible to test
Demonstrate,prove device sensitivity multiple branch circuit is grounded simultaneously when and can not accurately select to be grounded branch road, the 4th, D.C. isolation detector mistake
Report DC earthing and DC earthing branch road warning information accuracy relatively low, there is certain potential safety hazard.
The content of the invention
The utility model provide a kind of Portable DC insulation tester test device, overcome above-mentioned prior art it
Deficiency, it can effectively be solved, and D.C. isolation tester sensitivity in the prior art is low to have false alarms, measures inaccurate ask
Topic.
The technical solution of the utility model is realized by following measures：A kind of Portable DC insulation tester is surveyed
Trial assembly is put, including controller, display, variable rheostat, controlling switch and dc source, the output end and display of the controller
Input electrical connection, the variable rheostat include casing and be fixedly mounted in casing positive power terminal, negative power source terminal and
Slide rheostat, the wall box is provided with wire hole, and the top of the casing is provided with opening portion, and slide rheostat second connects
Terminal is electrically connected with negative power source terminal, and controlling switch normally-closed contact is electrically connected with the binding post of slide rheostat second, controlling switch
Normally opened contact with controller is two-way electrically connects, the binding post of slide rheostat the 3rd ground connection, electrifying DC power supply is connected with least one
Individual power branch, positive pole, the negative pole of the positive power terminal, negative power source terminal respectively with power branch is electrically connected.
Here is the further optimization and/or improvements to above-mentioned utility model technical scheme：
It is above-mentioned to may also include terminal board, the positive pole of power branch and the negative pole of power branch respectively with terminal board
Corresponding interface electrical connection, positive power terminal and negative power source terminal are electrically connected with terminal board the corresponding interface respectively.
Slide rheostat described above can be provided with multiple gear-adjustables, and each gear is electrically connected with controlling switch, phase
Adjacent gear difference is 5 kilohms.
Dc source described above may include that direct current I is female and direct current II is female, and direct current I is female to be electrically connected between the mother of direct current II
Interconnection switch.
Display described above can be light-emitting diode display.
The utility model reasonable and compact in structure, easy to use, it is shifted to an earlier date by adjusting the gear of slide rheostat and realizing
D.C. isolation tester is verified, DC power-supply system Insulation monitoring warning information accuracy is improved, effectively eliminates
Potential safety hazard.Realized by the control of controller and be automatically performed resistance gear adjusting function, shorten test period, effectively save people
Power cost.
Brief description of the drawings
Accompanying drawing 1 is the utility model structured flowchart.
Accompanying drawing 2 is that the utility model slides variable rheostat and dc source electrical connection graph.
Accompanying drawing 3 is the utility model slide rheostat and the electrical connection graph of controlling switch.
Coding in accompanying drawing is respectively：1 is controller, and 2 be display, and 3 be variable rheostat, and 4 be controlling switch, and 5 be direct current
Power supply, 6 be terminal board, and 7 be interconnection switch, and 301 be casing, and 302 be positive power terminal, and 303 be negative power source terminal, 304
For slide rheostat, A is the binding post of slide rheostat first, and B is the binding post of slide rheostat second, and C is slide rheostat the
Three binding posts, D is the binding post of slide rheostat the 4th.
Embodiment
The utility model is not limited by following embodiments, can according to the technical solution of the utility model and actual conditions come
Determine specific embodiment.
The utility model is further described with reference to embodiment and accompanying drawing：
As shown in accompanying drawing 1,2,3, the Portable DC insulation tester test device includes controller 1, display 2, become
Case 3, controlling switch 4 and dc source 5 are hindered, the output end of the controller 1 is electrically connected with the input of display 2, it is described to become
Hindering case 3 includes casing 301, positive power terminal 302, negative power source terminal 303 and slide rheostat 304, the side wall of the casing 301
Wire hole is provided with, the top of the casing 301 is provided with opening portion, slide rheostat the second binding post B and negative power source terminal 303
Electrical connection, the normally-closed contact of controlling switch 4 is electrically connected with the second binding post of slide rheostat B, the normally opened contact of controlling switch 4 and control
At least one power branch is electrically connected with the two-way electrical connection of device 1, the binding post C of slide rheostat the 3rd ground connection, dc source 5,
Positive pole, the negative pole of the positive power terminal 302, negative power source terminal 303 respectively with power branch are electrically connected.In practical work process
In, wire one end electrical connection D.C. isolation tester, the wire other end is connected electrically in positive electricity through the wire hole on the side wall of casing 3
On source terminal 302 and negative power source terminal 303, realize and D.C. isolation tester is verified；By adjusting slide rheostat 304, change
Become the resistance of access dc source branch road to change the electric current in circuit, so as to change the direct current connected with slide rheostat 304
The voltage of insulation tester, display 2 facilitates staff intuitively to observe tested D.C. isolation tester to connect branch road
Voltage, so as to know the sensitivity of D.C. isolation tester, finding out the not high D.C. isolation of sensitivity by check results surveys
Examination instrument carries out deactivation and reprocessed, and improves the accuracy of warning information, excludes potential safety hazard.Here controller 1 is existing known skill
Art, controller 1 used herein is single-chip microcomputer, is connected respectively with display 2 and controlling switch 4 by the expansion interface of single-chip microcomputer
Connect, by the control of controller 1, realization is automatically performed resistance adjustment, shortens test period, effectively save human cost.
Above-mentioned Portable DC insulation tester test device further can be optimized or/and be changed according to actual needs
Enter：
As shown in accompanying drawing 1,2,3, in addition to terminal board 6, the positive pole of power branch and the negative pole difference of power branch
Electrically connected with the corresponding interface of terminal board 6, positive power terminal 302 and negative power source terminal 303 are corresponding to terminal board 6 respectively
Interface is electrically connected.Here terminal board 6 is provided with multiple interfaces, it is possible to achieve the multiple power branch of connection；In test, only
The power supplys different from the i.e. achievable connection of positive power terminal 302, negative power source terminal 303 of the series connection of slide rheostat 304 need to be switched
Branch road.
As shown in accompanying drawing 1,2,3, the slide rheostat 304 is provided with multiple gear-adjustables, and each gear is electrically connected
There is controlling switch 4, adjacent gear positions difference is 5 kilohms.Here controlling switch 4 is set according to the need for the gear of slide rheostat 304
It is equipped with multiple, the normally opened contact of each controlling switch 4 is electrically connected with controller 1, the control for passing through controller 1 is realized to slide and become
The automatic switchover of the gear of device 304 is hindered, the testing time is effectively shortened.Here the span of slide rheostat is 1 kilohm
To 999 kilohms.
As shown in accompanying drawing 1,2,3, the dc source 5 includes the mother of direct current I and direct current II is female, the mother of direct current I and the mother of direct current II
Between be electrically connected with interconnection switch 7.It is that the company to direct current I is female and direct current II is female can be achieved by opening/disconnection interconnection switch 7
Logical/cut-off, facilitates test job personnel packet test.
As shown in accompanying drawing 1,2,3, the display 2 is light-emitting diode display.
Above technical characteristic constitutes most preferred embodiment of the present utility model, and it has stronger adaptability and optimal implementation
Effect, can increase and decrease non-essential technical characteristic according to actual needs, to meet the demand of different situations.
Claims (9)
1. a kind of Portable DC insulation tester test device, it is characterised in that including controller, display, variable rheostat, control
System switch and dc source, the output end of the controller are electrically connected with the input of display, and the variable rheostat includes casing
With the positive power terminal, negative power source terminal and slide rheostat being fixedly mounted in casing, the wall box is provided with electric wire
Hole, the top of the casing is provided with opening portion, and the binding post of slide rheostat second is electrically connected with negative power source terminal, and controlling switch is normal
Closed contact is electrically connected with the binding post of slide rheostat second, controlling switch normally opened contact with controller is two-way electrically connects, slide and become
The binding post of device the 3rd ground connection is hindered, electrifying DC power supply is connected with least one power branch, the positive power terminal, negative power end
Positive pole, the negative pole of son respectively with power branch are electrically connected.
2. Portable DC insulation tester test device according to claim 1, it is characterised in that also including terminals
Daughter board, the positive pole of power branch and the negative pole of power branch are electrically connected with the corresponding interface of terminal board respectively, positive power source terminal
Son and negative power source terminal are electrically connected with terminal board the corresponding interface respectively.
3. Portable DC insulation tester test device according to claim 1 or 2, it is characterised in that the slip becomes
Hinder device and be provided with multiple gear-adjustables, each gear is electrically connected with controlling switch, and adjacent gear positions difference is 5 kilohms.
4. Portable DC insulation tester test device according to claim 1 or 2, it is characterised in that the direct current
Source includes the mother of direct current I and direct current II is female, and direct current I is female to be electrically connected with interconnection switch between the mother of direct current II.
5. Portable DC insulation tester test device according to claim 3, it is characterised in that the dc source
Female female with direct current II including direct current I, direct current I is female to be electrically connected with interconnection switch between the mother of direct current II.
6. Portable DC insulation tester test device according to claim 1 or 2, it is characterised in that the display
For light-emitting diode display.
7. Portable DC insulation tester test device according to claim 3, it is characterised in that the display is
Light-emitting diode display.
8. Portable DC insulation tester test device according to claim 4, it is characterised in that the display is
Light-emitting diode display.
9. Portable DC insulation tester test device according to claim 5, it is characterised in that the display is
Light-emitting diode display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720132628.6U CN206470385U (en) | 2017-02-14 | 2017-02-14 | Portable DC insulation tester test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720132628.6U CN206470385U (en) | 2017-02-14 | 2017-02-14 | Portable DC insulation tester test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206470385U true CN206470385U (en) | 2017-09-05 |
Family
ID=59707808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720132628.6U Expired - Fee Related CN206470385U (en) | 2017-02-14 | 2017-02-14 | Portable DC insulation tester test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206470385U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106646317A (en) * | 2017-02-14 | 2017-05-10 | 国网新疆电力公司伊犁供电公司 | Portable DC insulation detector test device |
-
2017
- 2017-02-14 CN CN201720132628.6U patent/CN206470385U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106646317A (en) * | 2017-02-14 | 2017-05-10 | 国网新疆电力公司伊犁供电公司 | Portable DC insulation detector test device |
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Legal Events
| 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: 20170905 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |