CN208752112U - A kind of distribution Zinc-Oxide Arrester acceptance checkout equipment - Google Patents
A kind of distribution Zinc-Oxide Arrester acceptance checkout equipment Download PDFInfo
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- CN208752112U CN208752112U CN201821457900.9U CN201821457900U CN208752112U CN 208752112 U CN208752112 U CN 208752112U CN 201821457900 U CN201821457900 U CN 201821457900U CN 208752112 U CN208752112 U CN 208752112U
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- zinc
- oxide arrester
- jack
- control cabinet
- electrically connected
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Abstract
The utility model discloses a kind of distribution Zinc-Oxide Arrester acceptance checkout equipments, including control cabinet and high voltage direct current generator, medium frequency output end mouth and ground terminal on control cabinet pass through immediate frequency cable respectively and ground wire is connected to IF input terminal mouth and the ground wire port of high pressure generator, the high pressure of high voltage direct current generator draws binding post and is connected with current-limiting resistance and microampere meter in turn, the microampere meter other end is connected to the top lead of Zinc-Oxide Arrester, Zinc-Oxide Arrester bottom end is connected to ground wire, high-voltage end jack is provided on control cabinet, shield end jack and ground terminal jack, high-voltage end jack is electrically connected to Zinc-Oxide Arrester by dismountable patch, shielding end jack is electrically connected to the shielded layer of Zinc-Oxide Arrester by dismountable patch, ground terminal jack is electrically connected to the shell of Zinc-Oxide Arrester by dismountable patch.The utility model alleviates the quantity that field personnel carries instrument, improves working efficiency.
Description
Technical field
The utility model relates to a kind of distribution Zinc-Oxide Arrester acceptance checkout equipments, belong to zinc oxide arrester test equipment skill
Art field.
Background technique
Zinc-Oxide Arrester be for protecting the electric equipment products that various electrical equipments are damaged from overvoltage in electric system,
With good protection performance.Because the nonlinear wind vibration of zinc oxide valve plate is very excellent, so that under normal working voltage
Only several hundred microamperes of electric current passes through, and convenient for being designed to gapless structure, having it, protective value number, light-weight, size is small
Feature.When overvoltage intrusion, the electric current for flowing through valve block increases rapidly while limiting the amplitude of overvoltage, releases
The energy of voltage, hereafter zinc oxide valve plate restores high-impedance state again, is that electric system works normally.The test of Zinc-Oxide Arrester
Project has: 1, ontology insulation resistance；2, pedestal insulation resistance；3, letting out under DC reference voltage and 0.75 times of DC reference voltage
Leakage current；Under traditional test mode, staff scene needs to carry at least two instruments, a megameter and a direct current height
Generator is pressed, two instruments, which are used alternatingly, when being tested reduces working efficiency.It takes shelter from the thunder in addition, traditional approach carries out zinc oxide
When device DC leakage-current is tested, the microampere meter for measuring leakage current is in high potential.The necessary distant surveillance of testing crew is simultaneously
Test data is recorded, read-record is inconvenient, and is easy to cause maloperation due to leakage current error in reading.
Summary of the invention
Technical problem to be solved by the utility model is: providing a kind of distribution Zinc-Oxide Arrester acceptance checkout equipment, one is realized
Platform instrument possesses the function of megameter and high voltage direct current generator simultaneously, reduces the quantity that field personnel carries instrument,
Working efficiency is improved, to solve problems of the prior art.
The technical solution that the utility model is taken are as follows: a kind of distribution Zinc-Oxide Arrester acceptance checkout equipment, including control cabinet and
High voltage direct current generator, medium frequency output end mouth on control cabinet and ground terminal passes through immediate frequency cable respectively and ground wire is connected to high pressure
The IF input terminal mouth of generator and ground wire port, the high pressure of high voltage direct current generator draw binding post and are sequentially connected current limiting electricity
Resistance and microampere meter, the microampere meter other end are connected to the top lead of Zinc-Oxide Arrester, and Zinc-Oxide Arrester bottom end is connected to ground
Line is provided with high-voltage end jack, shielding end jack and ground terminal jack, high-voltage end jack on control cabinet and passes through dismountable grafting
Line is electrically connected to Zinc-Oxide Arrester, and shielding end jack is electrically connected to the shielding of Zinc-Oxide Arrester by dismountable patch
Layer, ground terminal jack are electrically connected to the shell of Zinc-Oxide Arrester by dismountable patch.
Preferably, discharging rod is also connected on above-mentioned ground wire, discharging rod is stretching structure.
Preferably, telescopic rod is fixedly connected on above-mentioned control cabinet, telescopic rod upper end is fixedly connected with infrared probe, infrared
Probe is electrically connected with control cabinet and is capable of the reading screen of face microampere meter, can be realized the reading of microampere meter data wireless remote.
The utility model has the beneficial effects that compared with prior art, the utility model realizes oxidation by a control cabinet
Zinc arrester performances acceptance alleviates the quantity that field personnel carries instrument, improves working efficiency, and the utility model also has
Have the characteristics that structure is simple, at low cost.
Detailed description of the invention
Fig. 1 is the connection high voltage direct current generator schematic diagram of the utility model；
Fig. 2 is the control cabinet structural schematic diagram of the utility model；
Fig. 3 is the microampere meter wiring schematic diagram of control cabinet；
Fig. 4 is the megameter boot-strap circuit and power supply of the whole machine circuit of control cabinet；
Fig. 5 is the megameter real time clock circuit of control cabinet；
Fig. 6 is megameter infrared coding, the decoder of control cabinet；
Fig. 7 is the infrared transceiver circuit of control cabinet；
Fig. 8 is the LCD circuit of control cabinet；
Fig. 9 is the single chip circuit of control cabinet；
Figure 10 is the 5000V high-voltage power circuit of control cabinet；
Figure 11 is the 2.5V reference circuit of control cabinet；
Figure 12 is the voltage setting DA control circuit of control cabinet；
Figure 13 is the current measurement AD circuit of control cabinet；
Figure 14 is the current signal conditioning circuit of control cabinet；
Figure 15 is each unit power supply circuit of control cabinet.
Specific embodiment
With reference to the accompanying drawing and the utility model is described further in specific embodiment.
Embodiment: as shown in Fig. 1-Figure 15, a kind of distribution Zinc-Oxide Arrester acceptance checkout equipment, including control cabinet 1 and direct current
High pressure generator 2, medium frequency output end mouth on control cabinet 1 and ground terminal passes through immediate frequency cable 3 respectively and ground wire 4 is connected to high pressure
The IF input terminal mouth of generator 2 and ground wire port, the high pressure extraction binding post 5 of high voltage direct current generator 2 are sequentially connected limited
Leakage resistance 6 and microampere meter 7,7 other end of microampere meter are connected to the top lead of Zinc-Oxide Arrester 8,8 bottom end of Zinc-Oxide Arrester
It is connected to ground wire 4, high-voltage end jack 12, shielding end jack 13 and ground terminal jack 14, high-voltage end jack are provided on control cabinet 1
12 are electrically connected to Zinc-Oxide Arrester 8 by dismountable patch, and shielding end jack 13 is electrically connected by dismountable patch
It is connected to the shielded layer of Zinc-Oxide Arrester 8, ground terminal jack 14 is electrically connected to Zinc-Oxide Arrester 8 by dismountable patch
Shell, megameter is integrated on control cabinet and controls the function of high voltage direct current generator output voltage, to complete distribution oxidation
Zinc arrester acceptance test.
When carrying out ontology insulation resistance and pedestal insulation resistance test, it is only necessary to can be carried out the work, be surveyed using control cabinet 1
8 bottom end of arrester is connected to control cabinet ground terminal jack 14 when examination, and the top lead of arrester 8 connects control cabinet high-voltage end jack
12, when if you need to shield, the additional shielding line of staff connects control cabinet shielding end jack 13.
When carrying out the leakage current test under DC reference voltage and 0.75 times of DC reference voltage, need simultaneously using control
Case 1 and high voltage direct current generator 2 processed, wiring is as shown in Figure 1.By control cabinet 1 when test, high voltage direct current generator is slowly increased
Voltage on 2, at this point, the voltage that arrester 8 is born is the output voltage of high voltage direct current generator.It is adjusted by telescopic rod 10 red
The position of outer probe 11, makes the reading screen of its face microampere meter 7, and 11 micrometer peace meter readings of infrared probe pass through the infrared of Fig. 7
Transceiver circuit is shown on the display screen of control cabinet 1, to facilitate testing crew to read.
Preferably, discharging rod 9 is also connected on above-mentioned ground wire 4, discharging rod 9 is stretching structure.
Preferably, telescopic rod 10 is fixedly connected on above-mentioned control cabinet 1,10 upper end of telescopic rod is fixedly connected with infrared probe
11, infrared probe 11 is electrically connected with control cabinet 1 and is capable of the reading screen of face microampere meter 7.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered within the scope of the utility model, therefore, the protection scope of the utility model should be with the power
Subject to the protection scope that benefit requires.
Claims (3)
1. a kind of distribution Zinc-Oxide Arrester acceptance checkout equipment, it is characterised in that: including control cabinet (1) and high voltage direct current generator
(2), the medium frequency output end mouth on control cabinet (1) and ground terminal pass through immediate frequency cable (3) respectively and ground wire (4) is connected to high pressure
The IF input terminal mouth of raw device (2) and ground wire port, the high pressure of high voltage direct current generator (2) are drawn binding post (5) and are sequentially connected
Limited leakage resistance (6) and microampere meter (7), microampere meter (7) other end are connected to the top lead of Zinc-Oxide Arrester (8), oxidation
Zinc arrester (8) bottom end is connected to ground wire (4), be provided on control cabinet (1) high-voltage end jack (12), shielding end jack (13) and
Ground terminal jack (14), high-voltage end jack (12) are electrically connected to Zinc-Oxide Arrester (8) by dismountable patch, shield end
Jack (13) is electrically connected to the shielded layer of Zinc-Oxide Arrester (8) by dismountable patch, and ground terminal jack (14) passes through
Dismountable patch is electrically connected to the shell of Zinc-Oxide Arrester (8).
2. a kind of distribution Zinc-Oxide Arrester acceptance checkout equipment according to claim 1, it is characterised in that: on ground wire (4) also
It is connected with discharging rod (9), discharging rod (9) is stretching structure.
3. a kind of distribution Zinc-Oxide Arrester acceptance checkout equipment according to claim 1, it is characterised in that: on control cabinet (1)
It is fixedly connected with telescopic rod (10), telescopic rod (10) upper end is fixedly connected with infrared probe (11), infrared probe (11) and control
Case (1) is electrically connected and is capable of the reading screen of face microampere meter (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821457900.9U CN208752112U (en) | 2018-09-06 | 2018-09-06 | A kind of distribution Zinc-Oxide Arrester acceptance checkout equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821457900.9U CN208752112U (en) | 2018-09-06 | 2018-09-06 | A kind of distribution Zinc-Oxide Arrester acceptance checkout equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208752112U true CN208752112U (en) | 2019-04-16 |
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ID=66083038
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821457900.9U Active CN208752112U (en) | 2018-09-06 | 2018-09-06 | A kind of distribution Zinc-Oxide Arrester acceptance checkout equipment |
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| CN (1) | CN208752112U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109116060A (en) * | 2018-09-06 | 2019-01-01 | 贵州电网有限责任公司 | A kind of distribution Zinc-Oxide Arrester examination device |
-
2018
- 2018-09-06 CN CN201821457900.9U patent/CN208752112U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109116060A (en) * | 2018-09-06 | 2019-01-01 | 贵州电网有限责任公司 | A kind of distribution Zinc-Oxide Arrester examination device |
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