CN204142784U - Movable DC contamination experiment power supply system - Google Patents
Movable DC contamination experiment power supply system Download PDFInfo
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- CN204142784U CN204142784U CN201420594407.7U CN201420594407U CN204142784U CN 204142784 U CN204142784 U CN 204142784U CN 201420594407 U CN201420594407 U CN 201420594407U CN 204142784 U CN204142784 U CN 204142784U
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- 238000011109 contamination Methods 0.000 title claims abstract description 32
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 14
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Abstract
The utility model relates to a kind of movable DC contamination experiment power supply system; be made up of container, operator's console, low-tension switch cabinet, pressure regulator, double-jacket tube Industrial Frequency Transformer, rectification silicon stack, filter capacitor, direct current protecting resistance, direct current resistance voltage divider, direct current extraction tube; it is characterized in that: just DC experiment power supply is installed in container; the requirement of mobile on-site test can be realized; container adopts container body and the separable project organization of container base, and container body and container base adopt 24 speedtainer padlocks to fix.Movable DC contamination experiment power supply system of the present utility model, utilizes 50Hz direct supply to obtain high tension voltage, direct supply quality is good, capacity is large, can meet contamination experimental study needs.Employing container moving type designs, and can realize fast layout at the scene, launches test, alleviates on-the-spot workload, can using generator powered, also can use not having the region of electric power supply.
Description
Technical field
The utility model relates to a kind of movable DC contamination experiment power supply system, is incorporated into by DC experiment power supply in a container, belongs to power high voltage technical field of measurement and test.
Background technology
DC experiment power supply is the main experimental equipment carrying out DC voltage withstand test.The external insulation design of high voltage power transmission depends primarily on two aspects, is on the one hand the problem of aspect, clearance, then depends on the pollution performance of insulator under operating voltage on the other hand.The filth insulation problem of circuit is all the crucial controlling factor of transmission line of electricity external insulation design usually, and circuit reliability of operation in its appreciable impact.Operating experience both domestic and external shows, the contamination situation of DC line insulator and alternating current circuit exist notable difference, and the contamination experience (fertilizer making by sludge) of alternating current circuit, external insulation design, operation and maintenance experience can not directly be applied mechanically.The filth insulation test of current insulator is normally carried out in testing laboratory, and by artificial pollution method simulation test, but this test and natural situation still there are differences, and can not verify the actual features in different dirty district.
In view of this, the utility model provides a kind of movable DC contamination experiment power supply system, for testing the insulator contamination accumulation characteristics under the actual natural environmental condition in different regions.
Summary of the invention
The technical problems to be solved in the utility model is: in order to address this problem, the utility model proposes a kind of movable DC contamination experiment power supply system, for testing the insulator contamination accumulation characteristics under the actual natural environmental condition in different regions, adopt 50Hz DC power supply, direct current contamination experiment power supply is incorporated in container, be convenient to transport and site test, power supply is drawn out to outside from internal container by direct current extraction tube by power supply, for tested insulator chain provides power supply, obtain insulator operational factor by measuring system.
The technical scheme that the utility model adopts is: movable DC contamination experiment power supply system; be made up of container, operator's console, low-tension switch cabinet, pressure regulator, double-jacket tube Industrial Frequency Transformer, rectification silicon stack, filter capacitor, direct current protecting resistance, direct current resistance voltage divider, direct current extraction tube; it is characterized in that: just DC experiment power supply is installed in container; the requirement of mobile on-site test can be realized, wherein:
Container adopts container body and the separable project organization of container base, and container body and container base adopt 24 speedtainer padlocks to fix;
Operator's console comprises observing and controlling industrial computer, display and supervisory system, can by the whole controlling functions of computing machine realization to system;
Low-tension switch cabinet inside, containing low tension switch, PLC, relay, contactor, is the control core of whole system;
Pressure regulator adopts column type voltage regulator, the speed governing of direct current generator servo-drive system, Electronic control pressure regulation, and the rate of rise is adjustable;
Double-jacket tube Industrial Frequency Transformer adopts Pipe and Iron Shell Structure, and two ends insulation double-jacket tube is drawn;
Rectification silicon stack adopts modularization high voltage silicon rectifier stack to be arranged in insulating cylinder, and adds the oil-tightening mode of insulation;
Filter capacitor adopts Large Copacity epoxy core structure, and there is high-voltage capacitance inside, for reducing the ripple factor that direct current exports;
Direct current protecting resistance adopts tinsel coiling to form, for the protection for transformer during connect test product flashover;
Direct current resistance voltage divider adopts electric resistance partial pressure form, is made up of, by voltage divider, high direct voltage is reduced to below 10V high-voltage arm resistance and low-voltage arm resistance, access measuring system;
Direct current extraction tube is the special extraction tube for the DC voltage of internal container being drawn out to container outside.
Movable DC contamination experiment power supply system as above, is characterized in that: installing gate, container body two ends, the operation of personnel easy to use; Container base installs capillary groove and waterproof sealing rubber cushion additional, improves water resistance; Container is divided into pulpit and canyon, by operating personnel and high-tension apparatus completely isolated, ensure the safety of operating personnel.
Movable DC contamination experiment power supply system as above; it is characterized in that; supervisory system can the video image of monitoring equipment chamber interior and container outside; containing insulation blocking power supply in operator's console; isolated high-voltage test can discharge for the impact of supervisory system, and ensure the personal safety of operating personnel.
Movable DC contamination experiment power supply system as above, it is characterized in that, grading shield is arranged at voltage divider top, for all pressing.
Movable DC contamination experiment power supply system as above, it is characterized in that, the material of direct current extraction tube is compound insulating sleeve, and outside surface has composite silicone rubber cluster parachute, direct current extraction tube has good insulating property, is especially passing through the part of container body.
The beneficial effects of the utility model are: movable DC contamination experiment power supply system of the present utility model, utilize 50Hz direct supply to obtain high tension voltage, direct supply quality is good, capacity is large, can meet contamination experimental study needs.Employing container moving type designs, and can realize fast layout at the scene, launches test, alleviates on-the-spot workload, can using generator powered, also can use not having the region of electric power supply.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model movable DC contamination experiment power supply system.
Embodiment
In order to understand the utility model better, illustrate content of the present utility model further below in conjunction with embodiment, but content of the present utility model is not only confined to the following examples.Those skilled in the art can make various changes or modifications the utility model, and these equivalent form of values are equally within claims limited range listed by the application.
Symbol description in accompanying drawing: 1-operator's console, 2-low-tension switch cabinet, 3-pressure regulator; 4-double-jacket tube Industrial Frequency Transformer; 5-rectification silicon stack, 6-filter capacitor, 7-direct current protecting resistance; 8-direct current resistance voltage divider; 9-container base, 10-container body, 11-supervisory system; 12-direct current extraction tube, 13-container.
Movable DC contamination experiment power supply, is characterized in that: be installed to by DC experiment power supply in a container, can realize the requirement of mobile on-site test.Movable DC contamination experiment power supply is made up of container, operator's console, low-tension switch cabinet, pressure regulator, double-jacket tube Industrial Frequency Transformer, rectification silicon stack, filter capacitor, direct current protecting resistance, direct current resistance voltage divider, direct current extraction tube.
Container adopts casing and the separable project organization of base, container body is convenient to hang, overhaul the high-tension testing apparatus that container base is installed, container body and base adopt 24 speedtainer padlocks, can carry out the connection of container body and base rapidly.Installing gate, container two ends, the turnover operation of personnel easy to use.Container base has installed capillary groove and waterproof sealing rubber cushion additional, improves water resistance.Capillary groove height 100mm, when waterproof sealing rubber cushion lost efficacy, still can keep out the water of below 100mm.Container is divided into pulpit and canyon, and operating personnel and high-tension apparatus is completely isolated by iron plate, ensure that the safety of operating personnel.Carry out upholstery in pulpit, be provided with light fixture, watch-dog.Pulpit is provided with the sliding plastic-steel window of band anti-theft net, can ensure the ventilation comfort of operating personnel.Also installed illumination and watch-dog in canyon, conveniently can enter maintenance and carry out device status monitoring.
Operator's console contains observing and controlling industrial computer, display, supervisory system.Can by the whole controlling functions of industrial computer realization to system.Supervisory system can monitoring equipment chamber interior and container outside video image.Containing insulation blocking power supply in operator's console, can be good at the impact of isolated high-voltage test electric discharge for control system, and ensure that the personal safety of operating personnel.
Low-tension switch cabinet inside, containing control devices such as low tension switch, PLC, relay-contactors, is the control core of whole system.The rated voltage 380V of switch cubicle, rated current 300A.
Pressure regulator adopts column type voltage regulator, and the speed governing of direct current generator servo-drive system can Electronic control pressure regulation, and the rate of rise is adjustable.
Pressure regulator parameter:
Structure is single-phase, induction type
Capacity 80kVA
Nominal input voltage 380V
Rated output voltage 0 ~ 650V
Specified input current 210A
Frequency of operation 50Hz
Infield is indoor
Type of cooling oil
Other are equipped with zero-bit and high pressure stop means
Voltage regulating mode adopts servo-drive system, and the rate of rise is adjustable.
Double-jacket tube Industrial Frequency Transformer adopts Pipe and Iron Shell Structure, and two ends insulation double-jacket tube is drawn.
Double-jacket tube Industrial Frequency Transformer parameter:
Structure is single-phase, iron-clad, double-jacket tube extension line
Capacity 80kVA
Input voltage 600V
Rated output voltage 65kV
Frequency of operation 50Hz
Infield is indoor
Type of cooling oil.
Rectification silicon stack adopts modularization high voltage silicon rectifier stack to be arranged in insulating cylinder, and adds the oil-tightening mode of insulation.Rectification silicon stack composition bridge rectifier circuit.
Rectification silicon stack parameter:
Rated voltage 160kV
Rated current 2A.
Filter capacitor adopts Large Copacity epoxy core structure, and there is high-voltage capacitance inside.For reducing the ripple factor that direct current exports.
Filter capacitor parameter:
Rated voltage 80kV
Rated capacity 3uF.
Direct current protecting resistance adopts tinsel coiling to form, for the protection for transformer during connect test product flashover, and resistance 10k Ω, length 800mm.
Direct current resistance voltage divider adopts electric resistance partial pressure form, is made up of, by voltage divider, high direct voltage is reduced to below 10V high-voltage arm resistance and low-voltage arm resistance, access measuring system.Grading shield is arranged at voltage divider top, for all pressing.Rated voltage 80kV, high-voltage arm 300M Ω, low-voltage arm 30K Ω.
Direct current extraction tube is the special extraction tube for the DC voltage of internal container being drawn out to container outside, and it has good insulating property, is especially passing through the part of container body.The material of direct current extraction tube is compound insulating sleeve, and outside surface has composite silicone rubber cluster parachute.
Principle of work of the present utility model is: direct supply 380V inputs; can linear regulation output voltage by pressure regulator; pressure regulator output voltage is as the input voltage of double-jacket tube Industrial Frequency Transformer; after the boosting of double-jacket tube Industrial Frequency Transformer, produce high pressure, carry out after bridge rectifier through rectification silicon stack; be connected on filter capacitor and carry out green treasured; be connected on divider through protective resistance, high tension voltage can be divided extrusion low voltage voltage signal by divider, and access measuring system carries out voltage measurement.Be connected to direct current extraction tube from voltage divider upper end, by this sleeve pipe, voltage be drawn out to container outside, then be connected on tested insulator by high-voltage conducting wires.By sample resistance the Leakage Current of insulator to be collected by measuring system at the end of insulator in the industrial computer of operator's console and carry out analyzing and processing, obtain the relation of insulator Leakage Current characteristic and Natural contamination.
Specific embodiments:
Service condition: infield is outdoor
Sea level elevation 4500m
Environment temperature-35 DEG C ~+35 DEG C
Relative air humidity≤90%(20 DEG C)
Aseismatic ability ground horizontal acceleration: 3m/s2.Ground normal acceleration: 1.5m/s2.(seismic event is sinusoidal wave, duration three cycles, safety coefficient 1.67)
Other are provided with reliable ground point, stake resistance < 0.5 Ω.
Direct current contamination experiment power supply TT&C system, native system adopts import PLC as kernel control chip, reliability is high, the requirement of the long-term charged use of equipment can be met, equipment has action button to carry out operating and adopt direct current peak value meter to show, operation interface adopts LABVIEW software programming, can enterprising line operate and display at interface simultaneously, and can record DC voltage and Leakage Current.The data of record can be called easily, generate report.Requirement charged for a long time according to equipment in addition, for the ease of better measuring and controlling equipment running status, alleviate the work load of operations staff, this equipment adds note remote monitoring function, TT&C system can be sent on the mobile phone that client specifies in real time or regularly by equipment running status and Ge Lu Leakage Current data, if equipment there occurs fault or runs into system cut-off, also warning message can be sent on mobile phone that user specifies, to realize unmanned.The operational factor of system and measurement result show on computer interface in real time with digital quantity form.The parameters such as all settings of pilot system, operation, measurement can be completed on computers, monitor its running status.This computer measurement and control system is the special intelligentized control method for on-the-spot movable DC contamination experiment power supply system design and measuring system, and all controlling functions all can by software simulating.Use shield technology and ripe configuration software, solve the interference problems such as the space in high-voltage test, earth potential and power supply well, optimize man-machine interface and communication modes, whole control system is made not only to have antijamming capability strong, good stability, reliability high, and there is very large extensibility and powerful programming and ability to communicate, revolutionize traditional control system the operation not only time-consuming but also phenomenon of requiring great effort, and substantially increase repeatability and the stability of test figure.
Measuring system adopts hyperchannel NI capture card, and automatic multirange switches, and accurately can measure the Leakage Current of microampere, milliampere and ampere level, and can record for a long time and data trend analysis.In conjunction with meteorological system, can analyze the relation of insulator contamination accumulation characteristics and meteorological condition, for power test, research institution provides Data support.
Control system technical parameter:
DC voltage
Setting range 0 ~ ± 80 kV
Operating voltage 0 ~ ± 80 kV continuously adjustabe
Degree of regulation 1 kV
Display precision 0.1 kV
Be equipped with direct current peak value meter
DC current
Indication range 0 ~ 1000mA
Display precision 0.1mA
The rate of rise
Range of adjustment 20% ~ 100% continuously adjustabe
Degree of regulation 1%
Voltage measurement uncertainty≤± 3 %
Current measurement uncertainty≤± 3 %.
Control system major function:
Output voltage can automatic or manual mode regulate;
Output voltage can regulate continuously, comprises automatically and manual two kinds of modes;
The operation (pressure regulator both sides switch closes, jump button and pilot lamp) of main power switch;
Pressure regulator ascending, descending pressure and pilot lamp;
Presetting and display of boost value, the rate of rise, pressure-resistant time, boosting mode can realize automatic programming mode;
Boost operations alarm bell is pointed out;
Control desk is equipped with overvoltage protection, by component damage in control desk when reasonably wiring and ground connection layout prevent test product flashover;
Control desk has overvoltage automatic trip function;
Pressure regulator adopts Direct Current Governor System, can adjust the rate of rise flexibly;
There is overvoltage, overcurrent hardware-software double protection functions.
Measuring system parameter:
Range: 0.1mA ~ 10A;
Sample frequency: 500Hz ~ 100KHz is adjustable;
Measuring error is: < 0.5%;
Measuring accuracy: 0.1mA;
Data store: >5T;
Passage: support that hyperchannel gathers simultaneously, port number easily extensible, can provide voltage measurement passage;
Sensor adopts three-level system protection, protects speed can reach ns level the soonest.There is defencive function during insulator arc-over, security of system stable operation can be guaranteed under 80kV trial voltage;
Total system have employed shielding measure, has very strong antijamming capability;
The leakage current waveform partition of whole pollution test can become multiple file to record completely by system;
System meeting programming count and memory leak current peak exceed the number of setting threshold value respectively, and meeting autostore interior maximum leakage current peak value per minute, duration and electricity, also can add up the accumulative quantity of electric charge;
System can read the characteristic quantity data stored afterwards, and can draw Trendline;
System can carry out frequency spectrum analysis, the functions such as fundamental extraction to the data stored.
These are only embodiment of the present utility model, be not limited to the utility model, therefore, all within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., all should be included within right of the present utility model.
Claims (5)
1. movable DC contamination experiment power supply system; be made up of container, operator's console, low-tension switch cabinet, pressure regulator, double-jacket tube Industrial Frequency Transformer, rectification silicon stack, filter capacitor, direct current protecting resistance, direct current resistance voltage divider, direct current extraction tube; it is characterized in that: just DC experiment power supply is installed in container; the requirement of mobile on-site test can be realized, wherein:
Container adopts container body and the separable project organization of container base, and container body and container base adopt 24 speedtainer padlocks to fix;
Operator's console comprises observing and controlling industrial computer, display and supervisory system, can by the whole controlling functions of computing machine realization to system;
Low-tension switch cabinet inside, containing low tension switch, PLC, relay, contactor, is the control core of whole system;
Pressure regulator adopts column type voltage regulator, the speed governing of direct current generator servo-drive system, Electronic control pressure regulation, and the rate of rise is adjustable;
Double-jacket tube Industrial Frequency Transformer adopts Pipe and Iron Shell Structure, and two ends insulation double-jacket tube is drawn;
Rectification silicon stack adopts modularization high voltage silicon rectifier stack to be arranged in insulating cylinder, and adds the oil-tightening mode of insulation;
Filter capacitor adopts Large Copacity epoxy core structure, and there is high-voltage capacitance inside, for reducing the ripple factor that direct current exports;
Direct current protecting resistance adopts tinsel coiling to form, for the protection for transformer during connect test product flashover;
Direct current resistance voltage divider adopts electric resistance partial pressure form, is made up of, by voltage divider, high direct voltage is reduced to below 10V high-voltage arm resistance and low-voltage arm resistance, access measuring system;
Direct current extraction tube is the special extraction tube for the DC voltage of internal container being drawn out to container outside.
2. movable DC contamination experiment power supply system according to claim 1, is characterized in that: installing gate, container body two ends, the operation of personnel easy to use; Container base installs capillary groove and waterproof sealing rubber cushion additional, improves water resistance; Container is divided into pulpit and canyon, by operating personnel and high-tension apparatus completely isolated, ensure the safety of operating personnel.
3. movable DC contamination experiment power supply system according to claim 2; it is characterized in that; supervisory system can the video image of monitoring equipment chamber interior and container outside; containing insulation blocking power supply in operator's console; isolated high-voltage test can discharge for the impact of supervisory system, and ensure the personal safety of operating personnel.
4. movable DC contamination experiment power supply system according to claim 1, it is characterized in that, grading shield is arranged at voltage divider top, for all pressing.
5. movable DC contamination experiment power supply system according to claim 1, it is characterized in that, the material of direct current extraction tube is compound insulating sleeve, and outside surface has composite silicone rubber cluster parachute, direct current extraction tube has good insulating property, is especially passing through the part of container body.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420594407.7U CN204142784U (en) | 2014-10-15 | 2014-10-15 | Movable DC contamination experiment power supply system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420594407.7U CN204142784U (en) | 2014-10-15 | 2014-10-15 | Movable DC contamination experiment power supply system |
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| CN204142784U true CN204142784U (en) | 2015-02-04 |
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| CN201420594407.7U Active CN204142784U (en) | 2014-10-15 | 2014-10-15 | Movable DC contamination experiment power supply system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330596A (en) * | 2014-10-15 | 2015-02-04 | 国网青海省电力公司电力科学研究院 | Mobile direct-current contamination test power supply system |
| CN112379137A (en) * | 2020-11-30 | 2021-02-19 | 合肥航太电物理技术有限公司 | Direct-current electrostatic high-voltage generator and test application thereof |
-
2014
- 2014-10-15 CN CN201420594407.7U patent/CN204142784U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330596A (en) * | 2014-10-15 | 2015-02-04 | 国网青海省电力公司电力科学研究院 | Mobile direct-current contamination test power supply system |
| CN112379137A (en) * | 2020-11-30 | 2021-02-19 | 合肥航太电物理技术有限公司 | Direct-current electrostatic high-voltage generator and test application thereof |
| CN112379137B (en) * | 2020-11-30 | 2022-05-10 | 合肥航太电物理技术有限公司 | Test application of direct current electrostatic high-voltage generator |
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