CN208752117U - A kind of anti-interference lightweight polarization depolarization current test device - Google Patents
A kind of anti-interference lightweight polarization depolarization current test device Download PDFInfo
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- CN208752117U CN208752117U CN201820993088.5U CN201820993088U CN208752117U CN 208752117 U CN208752117 U CN 208752117U CN 201820993088 U CN201820993088 U CN 201820993088U CN 208752117 U CN208752117 U CN 208752117U
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Abstract
The utility model relates to shield countermeasure set field, a kind of anti-interference lightweight polarization depolarization current test device is specifically disclosed, comprising: high pressure generation module, loop switch module, current acquisition module and communication module；Wherein, further includes: aluminum alloy casing；Epoxy resin shell, high pressure generation module and loop switch module are set in epoxy resin shell, and epoxy resin shell is fixed in aluminum alloy casing by polytetrafluoroethylene (PTFE) column；The sub- shell of aluminium alloy is set in aluminum alloy casing, and current acquisition module and communication module are set in the sub- shell of aluminium alloy；And copper shield net, it is sheathed in current acquisition module.High pressure is generated correlation module and is wrapped up using epoxy resin shell by the device, it is isolated simultaneously using the good material of the insulation performances such as polytetrafluoroethylene (PTFE), not only it ensure that the safety of operator, but also reduced the leakage current of high voltage unit to influence caused by polarization depolarization current test.
Description
Technical field
The utility model belongs to shielding countermeasure set field, in particular to a kind of anti-interference lightweight polarization depolarization current
Test device.
Background technique
It polarizes depolarization current method (PDC, Polarization and Depolarization Current Method)
A kind of offline, nondestructive electric equipment diagnosis method, at present mainly for test object have power transformer and
The capacitive apparatus such as power cable.Pass through the obtained polarization depolarization current to test, it can be determined that power equipment master is exhausted
The ageing state of edge.Specifically, between the aging conditions and transformer winding that may determine that cable major insulation by PDC test
The aging conditions of paper oil insulation.
The characteristics of depolarization current method that polarizes is that accuracy is higher, and the testing time is shorter and in polarization depolarization current
Contain a large amount of insulation ag(e)ing information, the aging conditions of comprehensive descision insulation can be carried out in terms of a variety of, so that aging
Assessment result is relatively reliable, accurately.So polarization depolarization current method, which has, widely answers in terms of power equipment Ageing Diagnosis
Use prospect.
Domestic polarization depolarization device production is less at present, is applied to laboratory research mostly, and deficiency is that each component dissipates
Dress do not concentrate cause using when wiring is cumbersome or the big transport inconvenience of device volume, or do not caused using electromagnetic shielding measure
It is interfered in test larger.The utility model PDC test device is mainly characterized in that device integrated level is higher, easy-to-connect；Dress
Set more light, convenient transportation；Reduce the interference being subject in test to the greatest extent using shielding construction.It is diagnosed in Electric Power Equipment Insulation
The today being in urgent need, the utility model meet that field diagnostic test is integrally light for test equipment, wiring is simple, behaviour
Make the convenient and effective demand of test.
Utility model content
The purpose of this utility model is to provide a kind of anti-interference lightweight polarization depolarization current test devices, thus gram
Defect when clothes polarization depolarization current test by outside electromagnetic interference.
To achieve the above object, the utility model provides a kind of anti-interference lightweight polarization depolarization current test dress
It sets, comprising: high pressure generation module, loop switch module, current acquisition module and communication module；Wherein, further includes: outside aluminium alloy
Shell；Epoxy resin shell, the high pressure generation module and loop switch module are set in the epoxy resin shell, the epoxy
Resin-case is fixed in the aluminum alloy casing by polytetrafluoroethylene (PTFE) column；The sub- shell of aluminium alloy is set to the aluminium alloy
In shell, the current acquisition module and communication module are set in the sub- shell of the aluminium alloy；And copper shield net, it is sheathed on
In the current acquisition module.
Preferably, in above-mentioned technical proposal, the current acquisition module includes: that signal wire, amplifier module and A/D turn
Change the mold block.
It preferably, further include one for placing anti-interference lightweight polarization depolarization current test in above-mentioned technical proposal
The transport case of device.
Preferably, in above-mentioned technical proposal, the transport case is in belt wheel draw-bar box type structure.
Preferably, in above-mentioned technical proposal, the transport case is made of polythene material, and the liner of the transport case is sea
It is continuous.
Compared with prior art, the utility model has the following beneficial effects:
1. high pressure is generated correlation module and is wrapped up using epoxy resin shell, simultaneously by the device in the utility model
It is isolated using the good material of the insulation performances such as polytetrafluoroethylene (PTFE), has not only ensure that the safety of operator, but also reduces height
The leakage current of unit is pressed to influence on caused by polarization depolarization current test.
2. the more sensitive current measuring unit of pair electromagnetic interference carries out it using the sub- shell of aluminium alloy and copper shield net
Electromagnetic shielding reduces the external interference suffered by it to the full extent, guarantees the accuracy of polarization depolarization current test.
3. shell uses aluminum alloy material, it both ensure that its mechanical strength, weight were again relatively light.And equipped with exclusive transport
Case, device noumenon and test all can be placed in case with line transports.Cabinet uses polyethylene material, and means of transportation uses pull rod pulley
Design, greatly facilitates the transport of live Electric Power Equipment Insulation diagnostic testing apparatus.
Detailed description of the invention
Fig. 1 a is the front view of the polarization depolarization current test device of the utility model.
Fig. 1 b is the side view of the polarization depolarization current test device of the utility model.
Fig. 1 c is the rearview of the polarization depolarization current test device of the utility model.
Fig. 2 is the circuit diagram of the polarization depolarization current test device of the utility model.
Fig. 3 is the structural schematic diagram that the measuring unit of the utility model shields.
Fig. 4 is the structural schematic diagram of the polarization depolarization current test device transport case of the utility model.
Specific embodiment
With reference to the accompanying drawing, specific embodiment of the present utility model is described in detail, it is to be understood that this is practical
Novel protection scope is not limited by the specific implementation.
Fig. 1 a- Fig. 1 c is shown according to the anti-interference lightweight of the preferred embodiments of the present invention polarization depolarization current
The structure chart of test device.
As shown in Fig. 1 a- Fig. 3, the anti-interference lightweight polarization depolarization current test device in the embodiment includes: height
Press generation module 31, loop switch module, galvanometer 7, current acquisition module, communication module 6, aluminum alloy casing 1, epoxy resin
Shell 4, copper shield net 8 and transport case 10.
As shown in Fig. 1 a- Fig. 2, polarization depolarization current test device includes: high pressure generation module 31, loop switch module
32 (for high pressure vacuum relay), galvanometer 7, current acquisition module, communication module 6, current acquisition module includes: signal wire
74, amplifier module 73 and A/D conversion module 72, circuit connection structure figure as shown in Fig. 2, high pressure generation module 31 be equipped with prolong
Voltage display window 311, voltage regulation button and the switch 312 of shell 1 are stretched out, loop switch module 32, which is equipped with, extends shell
1 High voltage output port 321, galvanometer 7 are equipped with the testing current port 71 for extending shell 1, and communication module 6, which is equipped with, to be extended
The usb communication port 61 of shell out, usb communication port 61 connect industrial personal computer and collect data and control by it.
As shown in Figure 1a, polarization depolarization current test device monolithic case 1 is designed as aluminum alloy casing, outside aluminium alloy
The outside of shell is equipped with handle, and the existing very high mechanical strength of aluminum alloy casing, wearability, and since aluminium alloy is good conductor have
Certain electrostatic shield effect.Because of high pressure generation module 31 and loop switch module 32 (i.e. relay module) because there is high-voltage electricity
Stream passes through, and high pressure generation module 31 and loop switch module 32 is set in epoxy resin shell 4, epoxy resin shell 4 is by ring
Oxygen resin plate is made, and epoxy resin shell 4 is fixed on the bottom of aluminum alloy casing by polytetrafluoroethylene (PTFE) column 5, guarantees high
The independent insulating properties for pressing generation module and loop switch module, prevent its high voltage and leakage current to current acquisition module and
The interference of communication module even damages.
As shown in Fig. 1 b, Fig. 3, current acquisition unit 2 (including communication module 6 and current acquisition module) is important
It component part and is easier to be interfered, so it need to be used good shielding measure.Current acquisition unit 2 is set to aluminium
To keep apart with high pressure generation module 31 and loop switch module 32 in the sub- shell 9 of alloy, the sub- shell 9 of aluminium alloy is set to aluminium
In alloy shell 1, and upper copper shield net 8 is covered in current acquisition module, further it is shielded.Current acquisition module packet
It includes: signal wire 74, amplifier module 73 and A/D conversion module 72.
As shown in figure 4, placing anti-interference lightweight polarization depolarization current test device, transport case using a transport case 10
It is made of polythene material, can not only guarantee cabinet intensity compared to aluminium alloy box, and improve and improve cabinet
Portability.The liner of transport case is sponge, can absorb impact, protection polarization depolarization current test device is during transportation
It is not damaged.Transport case is in draw-bar box type structure, reduces manpower spent in transportational process, greatly place to the full extent
Electrical employee field diagnostic test.
In conclusion when application polarization depolarization current method carries out live insulation diagnosis to power equipment, the present embodiment
In device can largely shield the electromagnetic interference of test site, and equipment volume is smaller, lighter in weight, carrying side
Just.
The description of the aforementioned specific exemplary embodiment to the utility model is in order to illustrate and illustration purpose.These
Description is not wishing to for the utility model to be limited to disclosed precise forms, and it will be apparent that according to the above instruction, can carry out
It is many to change and change.The purpose of selecting and describing the exemplary embodiment is that explaining the specific principle of the utility model
And its practical application, so that those skilled in the art can be realized and utilize a variety of different examples of the utility model
Property embodiment and various chooses and changes.The scope of the utility model is intended to by claims and its waits similar shapes
Formula is limited.
Claims (5)
- The depolarization current test device 1. a kind of anti-interference lightweight polarizes, comprising: high pressure generation module, loop switch module, Current acquisition module and communication module；It is characterized by further comprising:Aluminum alloy casing；Epoxy resin shell, the high pressure generation module and loop switch module are set in the epoxy resin shell, the ring Oxygen resin-case is fixed in the aluminum alloy casing by polytetrafluoroethylene (PTFE) column；The sub- shell of aluminium alloy is set in the aluminum alloy casing, and the current acquisition module and communication module are set to the aluminium In the sub- shell of alloy；AndCopper shield net is sheathed in the current acquisition module.
- The depolarization current test device 2. anti-interference lightweight according to claim 1 polarizes, which is characterized in that the electricity Flowing acquisition module includes: signal wire, amplifier module and A/D conversion module.
- The depolarization current test device 3. anti-interference lightweight according to claim 1 polarizes, which is characterized in that further include One for placing the transport case of anti-interference lightweight polarization depolarization current test device.
- The depolarization current test device 4. anti-interference lightweight according to claim 3 polarizes, which is characterized in that the fortune Defeated case is in belt wheel draw-bar box type structure.
- The depolarization current test device 5. anti-interference lightweight according to claim 3 polarizes, which is characterized in that the fortune Defeated case is made of polythene material, and the liner of the transport case is sponge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820993088.5U CN208752117U (en) | 2018-06-26 | 2018-06-26 | A kind of anti-interference lightweight polarization depolarization current test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820993088.5U CN208752117U (en) | 2018-06-26 | 2018-06-26 | A kind of anti-interference lightweight polarization depolarization current test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208752117U true CN208752117U (en) | 2019-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820993088.5U Active CN208752117U (en) | 2018-06-26 | 2018-06-26 | A kind of anti-interference lightweight polarization depolarization current test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208752117U (en) |
-
2018
- 2018-06-26 CN CN201820993088.5U patent/CN208752117U/en active Active
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