CN106405170B - A kind of integral type high-frequency and high-voltage power supply - Google Patents
A kind of integral type high-frequency and high-voltage power supply Download PDFInfo
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- CN106405170B CN106405170B CN201610788853.5A CN201610788853A CN106405170B CN 106405170 B CN106405170 B CN 106405170B CN 201610788853 A CN201610788853 A CN 201610788853A CN 106405170 B CN106405170 B CN 106405170B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/28—Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/083—Locating faults in cables, transmission lines, or networks according to type of conductors in cables, e.g. underground
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- General Physics & Mathematics (AREA)
- Generation Of Surge Voltage And Current (AREA)
Abstract
The present invention provides a kind of integral type high-frequency and high-voltage power supplies, including pwm circuit, control circuit, high frequency transformer, increasing apparatus, high-voltage capacitance, pulse output-controlling device, high direct voltage electric discharge device, sampling resistor, operation panel, structure stand and power case；Unitary design, compact-sized, light-weight, portable, wiring is simple, easy to operate；Output high pressure has the function of single pulse and continuous impulse, intelligent control pulse output；There is high direct voltage output function simultaneously, if circumsphere gap can equally work, using diversification.
Description
[technical field]
The invention belongs to power cable fault the field of test technology, are related to a kind of high-voltage electricity that cable fault test is required
Source, especially a kind of integral type high-frequency and high-voltage power supply.
[background technique]
It is developed rapidly in national economy, today that living standards of the people are continuously improved, reliability and company of the people to power supply
The requirement of continuous property is also higher and higher.Power cable be largely laid in underground, interior, channel, in mine, since cable itself is tied
Structure and by natural environment influence, easily break down phenomenon.In order to reduce unnecessary large-area power-cuts, shorten power off time,
Power supply reliability and continuity are improved, loss industrial, in agricultural production process is reduced, the efficiency that cable fault solves is closed very much
Key.
However, under normal circumstances, in cable fault test process, high-voltage power-supply unit is essential.Traditional high pressure
Source is made of voltage regulator controllers, transformer, high-voltage capacitance, discharging rod and connecting line, and if desired high voltage pulse is tested, and is also needed
Want a kind of specific discharge ball gap, manual voltage regulation, and according to actual needs, discharge ball stand-off distance is manually adjusted from very inconvenient.Separately
A kind of novel high-pressure power supply, tends not to integrated high voltage capacitor, and traditional " three-major-items " have simply only been optimized to " two
Big part " still maintains seperated instrument again without integration of equipments, integration, carrying facilitation is fundamentally solved the problems, such as
The property of device test.There are also the power supply that one kind more optimizes, Integration Design still uses the principle of transformer, but regret
Be it is very heavy, tester at least needs two people or more that can just move, and does not meet the rhythm of current production and living, influences to survey
Try working efficiency.
Although currently, high voltage power supply needed for cable fault test is many kinds of often there is instrument kind in these power supplys
The drawbacks of class is more, wiring is cumbersome, equipment is heavy, high pressure is exposed, operation mechanization.For example, being surveyed when needing high voltage pulse to export
Examination personnel will often adjust discharge ball gap according to nature of trouble and repeatedly, electric discharge manually again after needing to boost, and boost, frequent machine
Tool, it is not smart enough, to bring many troubles to tester.
[summary of the invention]
In view of the above shortcomings of the prior art, the object of the present invention is to provide a kind of portable, intelligent, humanized one
Body formula high-frequency and high-voltage power supply.
The present invention solves by the following technical programs:
A kind of integral type high-frequency and high-voltage power supply, including using pwm circuit as main channel, by high frequency transformer, increasing apparatus
Energy storage is carried out to high-voltage capacitance, control circuit obtains real-time high pressure, shape paired pulse output control dress by high pressure sampling resistor
It sets, the control of high direct voltage electric discharge device, each module is each attached in structure stand, is equipped with operation panel and power case；
The power case is the casing of integral type high-frequency and high-voltage power supply；
The structure stand is power supply unitary physical structure frame, is fixed in power case；
The pwm circuit is the switching power circuit based on pulse width modulating technology control, by modulating metal-oxide-semiconductor grid
Biasing, realize change to metal-oxide-semiconductor turn-on time, to realize the change of switching power supply output, pwm circuit output is connect
To high frequency transformer primary；
The control circuit is pulse output control, control of discharge, emergency stop starting control, sampling based on singlechip technology
Filter circuit；
The high frequency transformer is the high-frequency switch power transformer using UF series magnetic core；
The high-voltage capacitance is the capacitor for energy storage；
Pulse output-controlling device one end connects high-voltage capacitance high-pressure stage, another to be connected to panel jack, and switch is made
With, by control circuit signal driving, output single or continuous high-voltage pulse；
High direct voltage electric discharge device one end connects high-voltage capacitance high-pressure stage, and the other end connects discharge resistance to ground connection
Column remains high pressure electricity for releasing；
The operation panel is insulation board, and comprising display, junction block and operation button etc., operation panel is fixed on structure
Cradle top.
Further, the increasing apparatus uses multiplication of voltage principle, carries out insulated enclosure processing after component welding.
Further, the high-voltage capacitance is made of oil immersion insulating process, with fastened by screw on structure stand bottom plate, electricity
Pole insulating cement encapsulation process；
Further, the source cabinet is industry control Plastic casing.
Further, the sampling resistor is high-power high voltage glaze resistance.
Further, the sampling resistor is that high-power high voltage glaze resistance and low power metal film resistance are composed in series.
Compared with prior art, the present invention it has the technical effect that
1, unitary design, compact-sized, light-weight, portable, wiring is simple, easy to operate, by traditional seperated equipment
It is integrated, wiring type is reduced, user's wiring error rate is reduced, makes use more convenient；
2, output high pressure has the function of single pulse and continuous impulse, can be respectively cooperating with failure tester and fixed point apparatus is searched
Failure, the mode that traditionally pulse output punctures by the ball gap of constant spacing, not can control pulse output frequencies, long-time work
It will lead to the carbonization of ball gap contact surface and influence output pulse frequency, and the present invention cooperates by vacuum interrupter and software,
Intelligent control pulse output；
3, there is high direct voltage output function simultaneously, if circumsphere gap can equally work, using diversification；
4, has the function of automatic discharging, it is no longer necessary to traditional discharging rod electric discharge, any feelings such as emergent stopping or power-off
Under condition, the residual high pressure that can release automatically on internal high-voltage capacitor is not necessarily to manual operation, electric discharge intelligence, safe；
5, have emergency stop key, in any case can a key emergency stop, the automatic step-down discharge of power supply, securely and reliably.
[Detailed description of the invention]
Fig. 1 is the system block diagram of integral type high-frequency and high-voltage power supply of the present invention；
Fig. 2 is integral type high-frequency and high-voltage power supply controling circuit structure block diagram of the present invention.
[specific embodiment]
The present invention is described in further detail with reference to the accompanying drawing:
Referring to Fig. 1, integral type high-frequency and high-voltage power supply of the present invention is mainly by PWM (Pulse Width
Modulation) circuit, control circuit, high frequency transformation booster circuit, filter circuit, current-limiting resistance, high-voltage capacitance, pulse output
The composition such as control device, high direct voltage electric discharge device, sampling resistor, display device and power circuit.
Pwm circuit is main channel, carries out energy storage to high-voltage capacitance by high frequency transformer, increasing apparatus, control circuit is logical
It crosses high pressure sampling resistor and obtains real-time high pressure, the control of shape paired pulse output-controlling device, high direct voltage electric discharge device, each mould
Block is each attached in structure stand, is equipped with operation panel and power case；
The pwm circuit is the switching power circuit based on pulse width modulating technology control, which passes through modulation MOS
The biasing of tube grid, to realize the change to metal-oxide-semiconductor turn-on time, thus realize the change of switching power supply output, it is whole
Circuit design reasonable standard, circuit output are connected to high frequency transformer primary；The control circuit is the arteries and veins based on singlechip technology
Punching output control, control of discharge, emergency stop starting control, wave filtering circuit；The high frequency transformation booster circuit is using UF system
High-frequency switch power transformer and multiplication of voltage the principle composition of column magnetic core, entire circuit devcie carries out insulated enclosure after reliably welding
Processing, to atmospherical discharges after preventing it from increasing voltage；The filter circuit is since PWM technology has obtained the modulation of upper frequency
Waveform, it is necessary to which more pure fundamental wave can be obtained by being filtered；The current-limiting circuit is to prevent the current limliting overloaded and used from protecting
Protection circuit；The high-voltage capacitance is main storage capacitor, and oil immersion insulating process is electric with fastened by screw on structure stand bottom plate
Pole insulating cement encapsulation process；Pulse output-controlling device one end connects high-voltage capacitance high-pressure stage, another to be connected to panel
Socket, on-off action are exported single or continuous high-voltage pulse by control circuit signal driving；The high direct voltage electric discharge dress
One end connection high-voltage capacitance high-pressure stage is set, the other end connects discharge resistance, LED light to panel earthing rod, mainly releases residual
High pressure electricity is stayed, discharge resistance is high-power high voltage glaze resistance；The sampling resistor is high-power high voltage glaze resistance
It is composed in series with low power metal film resistance；The display device is the digital A/D converter composition based on three and half, input resistance
Anti- height, it is functional, facilitate installation；The power circuit be have 220V power input, EMI circuit, disappear sensor circuit and it is high every
It is formed from transformer, guarantees the independence of working power.
The operation panel is insulation board, comprising display, junction block, operation button etc., is fixed at the top of structure stand；
The structure stand is power supply unitary physical structure frame, is fixed in power case；The power case is integral type high frequency
The casing of high voltage power supply selects industry control Plastic casing.
Above-mentioned all components and device, which are respectively mounted, to be fixed on steel structure frame, compact-sized, fixed power source on steel structure frame
Operation panel, then this is integrally attached in industry control Plastic casing.
Following is best implementation column of the invention:
Referring to fig. 2, integral type high-frequency and high-voltage power supply controling circuit structure block diagram of the present invention includes signal input, control
Circuit and driving signal export three parts.
Wherein signal input mainly has emergency stop/enabling signal, single pulse signal, continuous impulse signal and voltage signal,
These digital signals fully enter single-chip processor i/o mouth, after software data is handled, output trigger signal to peripheral circuit, shape
It is exported at each section driving signal, as whether the corresponding control driving direct-current discharge device of emergency stop/enabling signal discharges, single pulse
Signal and the corresponding control driving pulse output-controlling device action mode of continuous impulse signal etc..
The application of integral type high-frequency and high-voltage power supply of the present invention is as follows:
By taking single-core cable is to armouring ground fault as an example, the working earthing of integral type high-frequency and high-voltage power supply and armouring are connected
It connects, pulse output end mouth is connect with failure cable core, and protective grounding is reliably connected with the earth, and access power frequency 220V power supply is
Can, this voltage regulation of electric power sources knob is operated, and observe display voltage, so far, can both carry out single pulse output and carry out failure electricity
Cable waveform acquisition can also carry out continuous impulse output and carry out Method of Cable Trouble Point pinpoint, convenient and efficient.This process is from basic
On reduce wiring type, low pressure operation securely and reliably shuts down a key emergency stop, and automatic discharging does not need operator and artificially uses
Discharging rod electric discharge.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
A specific embodiment of the invention is only limitted to this, for those of ordinary skill in the art to which the present invention belongs, is not taking off
Under the premise of from present inventive concept, several simple deduction or replace can also be made, all shall be regarded as belonging to the present invention by institute
Claims of submission determine scope of patent protection.
Claims (4)
1. a kind of integral type high-frequency and high-voltage power supply, it is characterised in that: using pwm circuit as main channel, by high frequency transformer, boosting
Device carries out energy storage to high-voltage capacitance, and control circuit obtains real-time high pressure, the output control of shape paired pulse by high pressure sampling resistor
The control of device, high direct voltage electric discharge device processed, each module are each attached in structure stand, are equipped with operation panel and power machine
Case；
The power case is the casing of integral type high-frequency and high-voltage power supply；
The structure stand is power supply unitary physical structure frame, is fixed in power case；
The pwm circuit is the switching power circuit based on pulse width modulating technology control, passes through the inclined of modulation metal-oxide-semiconductor grid
It sets, realizes the change to metal-oxide-semiconductor turn-on time, to realize the change of switching power supply output, pwm circuit output is connected to height
Frequency power transformer is primary；
The control circuit is pulse output control, control of discharge, emergency stop starting control, sampling filter based on singlechip technology
Circuit；
The high frequency transformer is the high-frequency switch power transformer using UF series magnetic core；
The high-voltage capacitance is the capacitor for energy storage；
Pulse output-controlling device one end connects high-voltage capacitance high-pressure stage, another to be connected to panel jack, on-off action, by
The driving of control circuit signal, exports single or continuous high-voltage pulse；
High direct voltage electric discharge device one end connects high-voltage capacitance high-pressure stage, and the other end connects discharge resistance to earthing rod, uses
High pressure electricity is remained in releasing；
The operation panel is insulation board, includes display, junction block and operation button, and operation panel is fixed on structure stand top
Portion；The increasing apparatus uses multiplication of voltage principle, carries out insulated enclosure processing after component welding；The high-voltage capacitance uses oil immersion
Insulating process production, with fastened by screw on structure stand bottom plate, electrode insulating cement encapsulation process.
2. integral type high-frequency and high-voltage power supply as described in claim 1, it is characterised in that: the power case is industry control plastics machine
Case.
3. integral type high-frequency and high-voltage power supply as described in claim 1, it is characterised in that: the sampling resistor is high-power high voltage
Glaze resistance.
4. integral type high-frequency and high-voltage power supply as described in claim 1, it is characterised in that: the sampling resistor is high-power high voltage
Glaze resistance and low power metal film resistance are composed in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610788853.5A CN106405170B (en) | 2016-08-30 | 2016-08-30 | A kind of integral type high-frequency and high-voltage power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610788853.5A CN106405170B (en) | 2016-08-30 | 2016-08-30 | A kind of integral type high-frequency and high-voltage power supply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106405170A CN106405170A (en) | 2017-02-15 |
| CN106405170B true CN106405170B (en) | 2019-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610788853.5A Active CN106405170B (en) | 2016-08-30 | 2016-08-30 | A kind of integral type high-frequency and high-voltage power supply |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2672665Y (en) * | 2003-12-12 | 2005-01-19 | 杭州雷盾电子设备有限公司 | Detector for thunder and lighting surge |
| KR20080077749A (en) * | 2007-02-21 | 2008-08-26 | 삼양기전(주) | Digital Line Error Detector |
| CN101329382A (en) * | 2007-06-19 | 2008-12-24 | 上海蓝波高电压技术设备有限公司 | High voltage non-local discharge test power supply for crosslinked cable |
| CN201352250Y (en) * | 2008-12-26 | 2009-11-25 | 西安四方机电有限责任公司 | Discharge device for detecting cable fault based on secondary pulse process |
| CN203630271U (en) * | 2013-11-19 | 2014-06-04 | 云南电网公司普洱供电局 | Vehicle electric-control totally-enclosed high-voltage impact signal source |
| CN104330598A (en) * | 2014-10-17 | 2015-02-04 | 南京信息工程大学 | Lightning damped oscillation wave generator |
| CN204832431U (en) * | 2015-08-06 | 2015-12-02 | 江苏省电力公司苏州供电公司 | High voltage DC tests integrated device |
-
2016
- 2016-08-30 CN CN201610788853.5A patent/CN106405170B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2672665Y (en) * | 2003-12-12 | 2005-01-19 | 杭州雷盾电子设备有限公司 | Detector for thunder and lighting surge |
| KR20080077749A (en) * | 2007-02-21 | 2008-08-26 | 삼양기전(주) | Digital Line Error Detector |
| CN101329382A (en) * | 2007-06-19 | 2008-12-24 | 上海蓝波高电压技术设备有限公司 | High voltage non-local discharge test power supply for crosslinked cable |
| CN201352250Y (en) * | 2008-12-26 | 2009-11-25 | 西安四方机电有限责任公司 | Discharge device for detecting cable fault based on secondary pulse process |
| CN203630271U (en) * | 2013-11-19 | 2014-06-04 | 云南电网公司普洱供电局 | Vehicle electric-control totally-enclosed high-voltage impact signal source |
| CN104330598A (en) * | 2014-10-17 | 2015-02-04 | 南京信息工程大学 | Lightning damped oscillation wave generator |
| CN204832431U (en) * | 2015-08-06 | 2015-12-02 | 江苏省电力公司苏州供电公司 | High voltage DC tests integrated device |
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| Publication number | Publication date |
|---|---|
| CN106405170A (en) | 2017-02-15 |
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