CN206533298U - Non- PT electricity getting devices with high-tension fuse - Google Patents
Non- PT electricity getting devices with high-tension fuse Download PDFInfo
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- CN206533298U CN206533298U CN201720234412.0U CN201720234412U CN206533298U CN 206533298 U CN206533298 U CN 206533298U CN 201720234412 U CN201720234412 U CN 201720234412U CN 206533298 U CN206533298 U CN 206533298U
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- electric capacity
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Abstract
The utility model discloses the non-PT electricity getting devices with high-tension fuse, it includes A phase high-tension fuses（Ta）, B phase high-tension fuses（Tb）, C phase high-tension fuses（Tc）, A phase power taking electric capacity（Ca）, B phase power taking electric capacity（Cb）, the electric electric capacity of C phases（Cc）, A phase dropping resistors（Ra）, B phase dropping resistors（Rb）, C phase dropping resistors（Rc）, rectifying tube（D1）Extremely（D6）Composition in phase bridge rectifier, voltage-stabiliser tube（DW）, filter capacitor（C）, Switching Power Supply, dropping resistor in ac input end correspondence connection each phase power-supply circuit of three-phase bridge rectifier circuit, when perhaps high-tension resistive punctures high-tension electricity, circuit excessively stream causes to fuse in the melt short time of high-tension fuse, make high pressure and power taking cell isolation, diminution accident scope, it is ensured that equipment and the safety of lives and properties.The utility model can be used in " non-PT electricity getting devices ".
Description
Technical field
The utility model is related to high pressure transmission ＆ distribution electrical domain, more particularly to controller and/or switch in high pressure power transmission and distribution
The electricity getting device of power supply.
Background technology
At present, intelligent branch segment switchgear is installed and used on distribution line more and more.These Intelligent switchs
The equipment overwhelming majority uses electromagnetic potential transformer（PT）To obtain working power.Power circuit has distribution electricity over the ground
Hold, and this distribution capacity is easy to and electromagnetic potential transformer（PT）Form ferro-resonance over-voltage.The width of its overvoltage
Value is enough to cause electrical equipment serious harm up to 3~4Umax. overvoltage.Here it is electric on distribution line in the last few years
Electromagnetic type voltage transformer（PT）The higher main cause of damage ratio.
" non-PT electricity getting devices ", i.e., without conventional electromagnetic potential transformer（PT）Transformation power taking, uses high-voltage capacitance instead
It is that user demarcation breaker and supporting controller provide reliable operation power and DC supply to be depressured way to take power.
The outstanding advantages of " non-PT electricity getting devices " are shown：
, PT be equipment by iron core and coil combination, and " non-PT electricity getting devices " does not have without iron core and coil
Ferromagnetic loss and heating, with energy conservation and environmental protection benefit.
, " non-PT electricity getting devices " produce resonance mistake in the absence of due to ferromagnetic resonance because without using iron core and coil
The danger that voltage is damaged, the safety to power network and equipment is favourable.
, save metal material（Silicon steel sheet, copper material）.
, small volume, it is lightweight.
, it is non-maintaining, service life is long.
The danger that its popularization and application come effective resonance overvoltage reduced on distribution line to equipment belt, improves distribution
Net safety operation level, with significant safety benefit, economic benefit and social benefit.
But, " non-PT electricity getting devices " of the prior art is main to be adopted by high-voltage capacitance decompression power taking and high-tension resistive partial pressure
Sample and regulator rectifier circuit composition, high pressure obtain the working power 24V or 220V of controller and switch through " non-PT electricity getting devices ".
, will when chance thunderbolt, overvoltage and the reason such as high-voltage capacitance and high-tension resistive material cause high-voltage capacitance and high-tension resistive to puncture
Electricity getting device and lives and properties can be caused serious harm.Therefore it there is certain potential safety hazard.
The content of the invention
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, is provided with high-tension fuse
Non- PT electricity getting devices.
The technical scheme that the utility model is used is：Non- PT electricity getting devices with high-tension fuse, it includes high pressure
Power taking electric capacity, dropping resistor, rectification circuit, mu balanced circuit, Switching Power Supply, one end connection high-tension electricity of the high pressure power taking electric capacity
Source phase line, it also includes A phases high-tension fuse, B phases high-tension fuse, C phase high-tension fuses, the A phases high-tension fuse, B
Phase high-tension fuse, one end of C phase high-tension fuses connect the A phase, B phase, C phase of high voltage power supply, the A phases high-voltage fuse respectively
Device, B phases high-tension fuse, the other end of C phase high-tension fuses connect one end of the high pressure power taking electric capacity, the power taking respectively
Electric capacity is changed to by connecting high voltage power supply phase line after tandem high pressure fuse by being directly connected to high voltage power supply phase line originally.
It includes A phases high-tension fuse, B phases high-tension fuse, C phases high-tension fuse, A phase power takings electric capacity, B phases power taking electricity
Hold, it is C phase electricity electric capacity, A phases dropping resistor, B phases dropping resistor, C phases dropping resistor, the first rectifying tube, the second rectifying tube, the 3rd whole
Flow tube, the 4th rectifying tube, the 5th rectifying tube, the 6th rectifying tube, voltage-stabiliser tube, filter capacitor, Switching Power Supply, the A phases, B phases, C
Mutually each high-tension fuse, power taking electric capacity, dropping resistor are sequentially connected in series high in each phase power-supply circuit of composition, each phase power-supply circuit
Press fuse connection high voltage power supply correspondence phase line, first rectifying tube, the second rectifying tube, the 3rd rectifying tube, the 4th rectifying tube,
5th rectifying tube, the 6th rectifying tube composition three-phase bridge rectifier circuit, the ac input end pair of the three-phase bridge rectifier circuit
The dropping resistor in each phase power-supply circuit should be connected, the DC output end of the three-phase bridge rectifier circuit is connected by described
The input of the Switching Power Supply, the Switching Power Supply output are connected after the mu balanced circuit that voltage-stabiliser tube, filter capacitor are composed in parallel
End powers to the load.
The beneficial effects of the utility model are：Due to the utility model, it includes high pressure power taking electric capacity, dropping resistor, rectification
Circuit, mu balanced circuit, Switching Power Supply, one end connection high voltage power supply phase line of the high pressure power taking electric capacity, it also includes A phase high pressures
Fuse, B phases high-tension fuse, C phase high-tension fuses, the A phases high-tension fuse, B phases high-tension fuse, C phase high-voltage fuses
One end of disconnected device connects the A phase, B phase, C phase of high voltage power supply respectively, and the A phases high-tension fuse, B phases high-tension fuse, C phases are high
The other end of pressure fuse connects one end of the high pressure power taking electric capacity respectively, and the power taking electric capacity by being directly connected to high pressure originally
Power supply phase line is changed to by connecting high voltage power supply phase line after tandem high pressure fuse.So the utility model meet thunderbolt, it is excessively electric
When the reason such as pressure and high-voltage capacitance and high-tension resistive material causes high-voltage capacitance and the high-tension resistive to puncture, it will pass through the high pressure that fuses
Fuse disconnects the connection with high voltage power supply, so as to ensure that the safety of equipment and the person.
Brief description of the drawings
Fig. 1 is the utility model circuit principle structure schematic diagram.
Embodiment
As shown in figure 1, the utility model it include high pressure power taking electric capacity, dropping resistor, rectification circuit, mu balanced circuit, open
Powered-down source, one end connection high voltage power supply phase line of the high pressure power taking electric capacity, it also includes A phases high-tension fuse, B phase high-voltage fuses
Disconnected device, C phase high-tension fuses, the A phases high-tension fuse, B phases high-tension fuse, one end of C phase high-tension fuses connect respectively
Connect the A phase, B phase, C phase of high voltage power supply, the A phases high-tension fuse, B phases high-tension fuse, the other end of C phase high-tension fuses
One end of the high pressure power taking electric capacity is connected respectively, and the power taking electric capacity is changed to pass through by being directly connected to high voltage power supply phase line originally
High voltage power supply phase line is connected after tandem high pressure fuse.
The utility model it include A phases high-tension fuse, B phases high-tension fuse, C phases high-tension fuse, the power taking of A phases electricity
Appearance, the electric electric capacity of B phase power takings electric capacity, C phases, A phases dropping resistor, B phases dropping resistor, C phases dropping resistor, the first rectifying tube, second
Rectifying tube, the 3rd rectifying tube, the 4th rectifying tube, the 5th rectifying tube, the 6th rectifying tube, voltage-stabiliser tube, filter capacitor, Switching Power Supply,
Each high-tension fuse of A phase, B phase, C phase, power taking electric capacity, dropping resistor are sequentially connected in series each phase power-supply circuit of composition, respectively
Phase power-supply circuit mesohigh fuse connection high voltage power supply correspondence phase line, first rectifying tube, the second rectifying tube, the 3rd rectification
Pipe, the 4th rectifying tube, the 5th rectifying tube, the 6th rectifying tube composition three-phase bridge rectifier circuit, the three-phase bridge rectifier circuit
Ac input end correspondence connection each phase power-supply circuit in dropping resistor, the direct current of the three-phase bridge rectifier circuit is defeated
Go out after the mu balanced circuit that end connection is composed in parallel by the voltage-stabiliser tube, filter capacitor to connect the input of the Switching Power Supply, institute
Switched power output is stated to power to the load.
Further, can be in A phase high-tension fuses for following development（Ta）One in parallel of place is used for standby A phases
High-tension fuse（Ta）, and two A phase high-tension fuses（Ta）A common end between be provided with first switch；In B phase high-voltage fuses
Disconnected device（Tb）One in parallel of place is used for standby B phase high-tension fuses（Tb）, and two B phase high-tension fuses（Tb）It is one common
Second switch is provided between end；In C phase high-tension fuses（Tc）One in parallel of place is used for standby C phase high-tension fuses（Tc）,
And two C phase high-tension fuses（Tc）A common end between provided with the 3rd switch, and first switch, second switch and the 3rd open
Pass is in off-state.Efficiency can be improved to ensure to run.
Further, can be in A phase power taking electric capacity for following development（Ca）One in parallel of place is used for standby power taking electricity
Hold（Ca）, and two A phase power taking electric capacity（Ca）A common end between provided with the 4th switch；B phase power taking electric capacity（Cb）Place is in parallel
One is used for standby power taking electric capacity（Cb）, and two B phase power taking electric capacity（Cb）A common end between provided with the 5th switch；C
Phase power taking electric capacity（Cc）One in parallel of place is used for standby power taking electric capacity（Cc）, and two C phase power taking electric capacity（Cc）It is one common
Provided with the 6th switch between end.Efficiency can be improved to ensure to run.
In the present embodiment, a specification is assembled respectively between high pressure connection inside each phases of " non-PT electricity getting devices " A, B, C
For XRNP12-0.2 high-tension fuse.When perhaps high-tension resistive punctures high-tension electricity, circuit excessively stream causes high-tension fuse
Fused in the melt short time, make high pressure and power taking cell isolation, reduce accident scope, it is ensured that equipment and the peace of lives and properties
Entirely.
The utility model can be widely applied in " non-PT electricity getting devices ".
Claims (2)
1. the non-PT electricity getting devices with high-tension fuse, it includes high pressure power taking electric capacity, dropping resistor, rectification circuit, voltage stabilizing
Circuit, Switching Power Supply, one end connection high voltage power supply phase line of the high pressure power taking electric capacity, it is characterised in that：It is high that it also includes A phases
Press fuse（Ta）, B phase high-tension fuses（Tb）, C phase high-tension fuses（Tc）, the A phases high-tension fuse（Ta）, B phases it is high
Press fuse（Tb）, C phase high-tension fuses（Tc）One end connect the A phase, B phase, C phase of high voltage power supply, the A phases high pressure respectively
Fuse（Ta）, B phase high-tension fuses（Tb）, C phase high-tension fuses（Tc）The other end connect high pressure power taking electricity respectively
One end of appearance, the power taking electric capacity is changed to by connecting high after tandem high pressure fuse by being directly connected to high voltage power supply phase line originally
Voltage source phase line.
2. the non-PT electricity getting devices according to claim 1 with high-tension fuse, it is characterised in that：It is high that it includes A phases
Press fuse（Ta）, B phase high-tension fuses（Tb）, C phase high-tension fuses（Tc）, A phase power taking electric capacity（Ca）, B phase power taking electric capacity
（Cb）, the electric electric capacity of C phases（Cc）, A phase dropping resistors（Ra）, B phase dropping resistors（Rb）, C phase dropping resistors（Rc）, the first rectifying tube
（D1）, the second rectifying tube（D2）, the 3rd rectifying tube（D3）, the 4th rectifying tube（D4）, the 5th rectifying tube（D5）, the 6th rectifying tube
（D6）, voltage-stabiliser tube（DW）, filter capacitor（C）, Switching Power Supply, each high-tension fuse of A phase, B phase, C phase, power taking electric capacity, drop
Piezoresistance is sequentially connected in series each phase power-supply circuit of composition, each phase power-supply circuit mesohigh fuse connection high voltage power supply correspondence phase
Line, first rectifying tube（D1）, the second rectifying tube（D2）, the 3rd rectifying tube（D3）, the 4th rectifying tube（D4）, the 5th rectifying tube
（D5）, the 6th rectifying tube（D6）Constitute three-phase bridge rectifier circuit, the ac input end correspondence of the three-phase bridge rectifier circuit
The dropping resistor in each phase power-supply circuit is connected, the DC output end connection of the three-phase bridge rectifier circuit is by described steady
Pressure pipe（DW）, filter capacitor（C）The input of the Switching Power Supply, the Switching Power Supply are connected after the mu balanced circuit composed in parallel
Output end powers to the load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720234412.0U CN206533298U (en) | 2017-03-13 | 2017-03-13 | Non- PT electricity getting devices with high-tension fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720234412.0U CN206533298U (en) | 2017-03-13 | 2017-03-13 | Non- PT electricity getting devices with high-tension fuse |
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| Publication Number | Publication Date |
|---|---|
| CN206533298U true CN206533298U (en) | 2017-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720234412.0U Active CN206533298U (en) | 2017-03-13 | 2017-03-13 | Non- PT electricity getting devices with high-tension fuse |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879971A (en) * | 2018-06-06 | 2018-11-23 | 珠海博威电气股份有限公司 | A kind of high power capacity electricity getting device and method |
| WO2023226124A1 (en) * | 2022-05-24 | 2023-11-30 | 南方电网科学研究院有限责任公司 | Pulse width modulation power supply method, and electronic high-voltage energy extraction and sampling apparatus and method |
-
2017
- 2017-03-13 CN CN201720234412.0U patent/CN206533298U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879971A (en) * | 2018-06-06 | 2018-11-23 | 珠海博威电气股份有限公司 | A kind of high power capacity electricity getting device and method |
| WO2023226124A1 (en) * | 2022-05-24 | 2023-11-30 | 南方电网科学研究院有限责任公司 | Pulse width modulation power supply method, and electronic high-voltage energy extraction and sampling apparatus and method |
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