CN205656273U - A three -phase power -frequency withstand voltage test device for among cable accessories salt atmosphere test - Google Patents
A three -phase power -frequency withstand voltage test device for among cable accessories salt atmosphere test Download PDFInfo
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- CN205656273U CN205656273U CN201620237940.7U CN201620237940U CN205656273U CN 205656273 U CN205656273 U CN 205656273U CN 201620237940 U CN201620237940 U CN 201620237940U CN 205656273 U CN205656273 U CN 205656273U
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- salt spray
- host computer
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Abstract
The utility model discloses a three -phase power -frequency withstand voltage test device for among cable accessories salt atmosphere test, a serial communication port, including the host computer, the host computer is connected with the PLC control module who carries out data transmission, and PLC control module connects three -phase induction formula voltage regulator, and the three -phase power transformer is connected to three -phase induction formula voltage regulator, and three capacitive voltage divider of group are connected to the three -phase power transformer, and three capacitive voltage divider of group connect the salt atmosphere test room respectively. The utility model discloses a computer control, does the host computer adopt labView software programming, through siemens S7 the 200PLC procedure is controlled, and it is more convenient accurate to control, and the voltage electric current of collection is more accurate, and the customer can carry out manual, semi -automatic, full -automatic experiment according to the examination article, and it needs to satisfy different experiments, can produce examination quality control simultaneously and test the report for it is experimental more simple and convenient, intelligence.
Description
Technical field
This utility model relates to a kind of three-phase main-frequency Withstand test device, particularly relates to a kind of for cable accessory salt
Three-phase main-frequency Withstand test device in mist test, belongs to the technical field of performance test of cable accessory.
Background technology
Power network is a part for power system, and power cable is inseparable from group in transmission and disttrbution system
Become part, due to the particularity of cable, to the installation of cable, run and safeguard that all there is special requirement.Electricity
Cable makes moist or intakes and makes insulating resistance of cable reduce, and is the several important side causing cable run generation interruption of service
Face.The outer end seals of cable is not tight, and moisture or moisture are once after cable termination enters cable insulation, and just having can
Whole cable system can be jeopardized from the gap of the brass wire shielding that insulate or from the gap longtitudinal dispersion of conductor.
Cable termination outer insulating material is broadly divided into two kinds: inorganic material and organic material；Inorganic material mainly has
Porcelain, glass etc.；Organic material mainly has rubber, epoxy resin, crosslinked polyethylene etc..Material is had following several
Point requires: excellent electrical insulation properties；Excellent ageing properties；Excellent resistance to pollution performance；Excellent increasing
Aqueous energy.
Summary of the invention
The technical problems to be solved in the utility model is: provide a kind of voltage accurate, that gather easy to control electric
Stream is accurate, make to test the easy and intelligent three-phase main-frequency pressure test in cable accessory salt spray test fills
Put, solve and how to gather the test product leakage current needed in test.
In order to solve above-mentioned technical problem, the technical solution of the utility model there is provided a kind of for cable accessory
Three-phase main-frequency Withstand test device in salt spray test, it is characterised in that include host computer, host computer with carry out
The PLC control module of data transmission connects, and PLC control module connects triphase induction type pressure regulator, three-phase sense
Answering formula pressure regulator to connect three-phase power transformer, three-phase power transformer connects three groups of capacitive dividers, three groups of electricity
Hold potentiometer and connect salt spray test room respectively.
Preferably, described host computer is to have LabView based on win7 operating system to develop programming software
Computer.
Preferably, described PLC control module is Siemens S7-200PLC control module.
Preferably, described triphase induction type pressure regulator connects three-phase alternating current potential source.
Preferably, when in test, leakage current is 250mA, the on high-tension side maximum voltage drop of described voltage source
Should be less than 5%.
This utility model can be the device that cable termination external insulation carries out that salt spray test offer three-phase main-frequency is pressure,
Carry out pressure regulation by triphase induction type pressure regulator, provide for three-phase power transformer and stablize adjustable voltage, simultaneously
Utilize capacitive divider that high pressure is sampled, it is provided that test product ARC breakdown protection signal, solve examination simultaneously
Test the collection of the test product leakage current of middle needs.
This utility model is controlled by computer, and host computer uses LabView software programming, passes through Siemens
S7-200PLC program is controlled, control more convenient accurately, the voltage x current of collection is the most accurate, client
According to test product can carry out manual, semi-automatic, automatically test, meet different tests needs, can give birth to simultaneously
Produce test product survey report so that test easier, intelligence.
Accompanying drawing explanation
The dress of the three-phase main-frequency pressure test in cable accessory salt spray test that Fig. 1 provides for this utility model
The structural representation put；
The dress of the three-phase main-frequency pressure test in cable accessory salt spray test that Fig. 2 provides for this utility model
The application schematic diagram put.
Detailed description of the invention
For making this utility model become apparent, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
This utility model is a kind of three-phase main-frequency Withstand test device in cable accessory salt spray test, such as figure
Shown in 1, it includes triphase induction type pressure regulator, three-phase power transformer, three groups of capacitive dividers, computer
(host computer) carries out data transmission with PLC control module, and PLC control module is according to the finger of host computer subsequently
Triphase induction type pressure regulator is controlled by order, and triphase induction type pressure regulator connects three-phase power transformer, three-phase
Power transformer connects three groups of capacitive dividers, is finally introduced salt spray test room pair respectively by three groups of capacitive dividers
Each the test product of pairing carries out applied voltage test.Controlling to be sampled as test product by computer provides three-phase alternating current pressure
Source, reaches test requirements document.
During use, as in figure 2 it is shown, major loop is accessed pressure regulator power supply box by three phase mains, for triphase induction type
Pressure regulator provides three phase mains, and the output of triphase induction type pressure regulator is connected with three-phase power transformer and makes it produce
The high pressure of continuous-stable, high pressure introduces salt spray test room respectively by three groups of capacitive dividers, adds test product
Pressure, controls industrial computer (i.e. host computer) and the PLC control module of installation in PLC regulator cubicle in loop simultaneously
Be connected, to PLC control module transmitting-receiving instruction, PLC sampling module gather data, PLC regulator cubicle again with tune
Depressor power supply box is connected so that PLC control module can be by pressure regulator power supply box to triphase induction type pressure regulator
Carry out buck and the basic controlling of pressure regulation motor.
This utility model computerizeds control owing to adopting so that this device is the most intelligent, host computer based on
Win7 operating system uses LabView exploitation programming so that it more can run steadily in the long term, meets test and wants
Asking, the slave computer being installed in PLC regulator cubicle uses SIEMENS S 7-200 PLC, can be effective with host computer
Coordinate control, use analog input/output module to be connected with PLC primary module, system acquisition simultaneously
To analog signals be converted into digital quantity signal and with PLC control module transmit so that voltage and current signal
Precision is higher, can carry out test manual, semi-automatic, full automatic according to different tests demand simultaneously, the most certainly
Word form also can be automatically generated, needed for system freely can set according to the difference of test product under dynamic test pattern
Voltage x current value, drops back to zero-bit after having again the tripping operation of overcurrent-overvoltage breakdown protection automatically, and high-low limit position is automatic
The functions such as stopping, can playing a protective role to whole test.
Reference standard according to cable accessory salt spray test needs conformance with standard:
GB/T12706.4-2008GB/T18889-2002GB/T12967.1-2011, GB/T4585.1, this utility model
The three-phase alternating current pressure voltage proposed in cable accessory salt spray test can be met and reach 32.5KV, pressure 300
Or 1000 hours, equipment requirements uses single-phase or three-phase alternating current potential source, and in test, leakage current is 250mA
Time, the on high-tension side maximum voltage drop of power supply should be less than 5%.Output voltage size is adjustably controlled, and can meet
Measure the requirements such as calibration.System uses computer (host computer) to carry out data transmission with PLC module, to three
Phase induction voltage regulator is controlled and produces high pressure so that test easier, intelligence.
In order to check the resistance to filthy level of cable accessory external insulation, salt spray test is as checking the main of cable accessory
Delivery test, device of the present utility model is for the resistance to potential source of three-phase alternating current required in salt spray test, it is provided that must
Indispensable support.
Claims (5)
1. the three-phase main-frequency Withstand test device in cable accessory salt spray test, it is characterised in that include
Host computer, host computer is connected with the PLC control module carried out data transmission, and PLC control module connects three-phase
Induction voltage regulator, triphase induction type pressure regulator connects three-phase power transformer, and three-phase power transformer connects three
Group capacitive divider, three groups of capacitive dividers connect salt spray test room respectively.
A kind of three-phase main-frequency pressure test dress in cable accessory salt spray test
Put, it is characterised in that described host computer is soft for having LabView exploitation programming based on win7 operating system
The computer of part.
A kind of three-phase main-frequency pressure test dress in cable accessory salt spray test
Put, it is characterised in that described PLC control module is Siemens S7-200PLC control module.
A kind of three-phase main-frequency pressure test dress in cable accessory salt spray test
Put, it is characterised in that described triphase induction type pressure regulator connects three-phase alternating current potential source.
A kind of three-phase main-frequency pressure test dress in cable accessory salt spray test
Put, it is characterised in that when in test, leakage current is 250mA, the on high-tension side maximum electricity of described voltage source
Pressure drop should be less than 5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620237940.7U CN205656273U (en) | 2016-03-25 | 2016-03-25 | A three -phase power -frequency withstand voltage test device for among cable accessories salt atmosphere test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620237940.7U CN205656273U (en) | 2016-03-25 | 2016-03-25 | A three -phase power -frequency withstand voltage test device for among cable accessories salt atmosphere test |
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| Publication Number | Publication Date |
|---|---|
| CN205656273U true CN205656273U (en) | 2016-10-19 |
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| CN201620237940.7U Active CN205656273U (en) | 2016-03-25 | 2016-03-25 | A three -phase power -frequency withstand voltage test device for among cable accessories salt atmosphere test |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108646098A (en) * | 2018-08-06 | 2018-10-12 | 无锡赛晶电力电容器有限公司 | A kind of test method of detection self-healing metallized dielectric capacitor capacitor internal ESL |
| CN112379222A (en) * | 2020-10-23 | 2021-02-19 | 深圳市深电电力设备发展有限公司 | Cable accessory withstand voltage testing device capable of actively reporting fault |
| CN116400201A (en) * | 2023-06-06 | 2023-07-07 | 中诚华隆计算机技术有限公司 | Core particle working state monitoring method and device, electronic equipment and storage medium |
-
2016
- 2016-03-25 CN CN201620237940.7U patent/CN205656273U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108646098A (en) * | 2018-08-06 | 2018-10-12 | 无锡赛晶电力电容器有限公司 | A kind of test method of detection self-healing metallized dielectric capacitor capacitor internal ESL |
| CN112379222A (en) * | 2020-10-23 | 2021-02-19 | 深圳市深电电力设备发展有限公司 | Cable accessory withstand voltage testing device capable of actively reporting fault |
| CN112379222B (en) * | 2020-10-23 | 2023-11-28 | 深圳市深电电力设备发展有限公司 | Cable accessory withstand voltage testing device capable of actively reporting fault |
| CN116400201A (en) * | 2023-06-06 | 2023-07-07 | 中诚华隆计算机技术有限公司 | Core particle working state monitoring method and device, electronic equipment and storage medium |
| CN116400201B (en) * | 2023-06-06 | 2023-08-11 | 中诚华隆计算机技术有限公司 | Core particle working state monitoring method and device, electronic equipment and storage medium |
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| GR01 | Patent grant |