CN201307833Y - V/P voltage source device - Google Patents
V/P voltage source device Download PDFInfo
- Publication number
- CN201307833Y CN201307833Y CNU2008202264860U CN200820226486U CN201307833Y CN 201307833 Y CN201307833 Y CN 201307833Y CN U2008202264860 U CNU2008202264860 U CN U2008202264860U CN 200820226486 U CN200820226486 U CN 200820226486U CN 201307833 Y CN201307833 Y CN 201307833Y
- Authority
- CN
- China
- Prior art keywords
- voltage
- rectification unit
- current transformer
- output
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses a V/P voltage source device which belongs to the field of a power supply device for power measurement equipment. The V/P voltage source device comprises a rectification unit and a filtration unit. A V/P source loop is arranged on a high-voltage load conducting wire; the output end of the V/P source loop is connected with the input end of the rectification unit; the output ends of the rectification unit are used as the output ends of the whole structure; and the filtration unit is arranged between the output ends of the rectification unit. When the V/P voltage source device is used, the output ends of the whole structure are connected with the power supply ends of the electric equipment such as a power meter and the like. The V/P source loop obtains electric power from the high-voltage load conducting wire, and supplies the electric power to the electric equipment for use through the treatment of the rectification unit and the filtration unit. The utility model is not influenced by the size of the load during power supply to the electric meter, can obtain and generate power supply with the voltage for providing the work power supply without any influence, and can prevent the electric meter from stopping working. The utility model has a simple structure, is suitable for high voltage and low voltage isolation and shielding, and is also suitable for the power supply to the electric meter with weak signals.
Description
Technical field
The utility model relates to a kind of V/P voltage source-taking apparatus, belongs to the power supply device field of power measurement equipment.
Background technology
Raising along with the distribution automation degree; for improving the requirement of the quality of power supply; microcomputer type protection, measure, conversion equipment high-tension current inductor that metering provides current signal, provide the service condition of high voltage potential transformer of the voltage conversion apparatus of voltage signal that variation has taken place; it does not need tens volt-amperes output capacity; the electric current that does not also need 1A or 5A, 100V, 4.64V100/
The output of voltage signal, but if several volt-amperes and mA level or the little current signal of ú A grade standard, the current signal output of millivolt or milliampere level can directly be connected with electric energy computation chip or protection control unit, reduce the number of ampere turns of current transformation process, reduce second open circuit voltage; This with regard to the manufacturing that makes instrument transformer become simply, material-saving, energy-conservation, can reduce the transfer process of electric current, voltage, reduce probability of failure.Can improve measuring accuracy, more pay attention to metering, measurement, protective value, this creates good development opportunity with regard to the technological progress of giving this kind equipment, and transformation and raising current conversion equipment are imperative.
Traditional gauge table need be equipped with special power supply unit when working, and as battery, perhaps independent low-voltage supply line makes the mounting, commissioning and maintenance of conventional metered dose table need a large amount of manpower and materials for safety, stable consideration.
The utility model content
The technical problems to be solved in the utility model provides a kind of simple in structure, can supply with the V/P voltage source-taking apparatus of weak signal electric energy meter power supply.
The technical scheme that its technical problem that solves the utility model adopts is: this V/P voltage source-taking apparatus, comprise rectification unit and filter unit, it is characterized in that: on the high-voltage load lead, V/P is set and gets resource loop, V/P gets the input of the output connection rectification unit of resource loop, the output of rectification unit output as a whole is provided with filter unit between the output of rectification unit.
During use, the power end of whole power consumption equipments such as output connection electric energy meter.V/P gets resource loop and obtains electric energy from the high-voltage load lead, handles through rectification unit and filter unit, supplies with power consumption equipment and uses.Can use again in the high-pressure side and can after the high-low pressure isolated insulation is handled, use in low-pressure side.
Wherein preferred version is:
Described V/P gets resource loop and comprises current transformer and impedance, the first side winding of current transformer is connected with impedance, an end connects the high-voltage load lead then, and the other end connects public ground, and the secondary side winding output of current transformer connects the input of rectification unit.The first side winding of current transformer is connected with impedance in addition, and two ends connect two high-voltage load leads of different phase sequences respectively then, and the secondary side winding output of current transformer connects the input of rectification unit.These two kinds of connected modes can be gathered voltage difference and produce voltage at secondary side, and be produced power supply by the effect of rectification unit and filter unit by current transformer.
Described V/P gets resource loop and comprises current transformer and impedance, the first side winding of current transformer is connected with impedance, two ends connect two high-voltage load leads of different phase sequences respectively then, and the secondary side winding output of current transformer connects the input of rectification unit.
On the whole output treatment facility and energy storage original papers such as stable-pressure device, storage battery can be set, so that use.Described rectification unit adopts rectifier bridge, also can be diode full-wave rectification, voltage multiplying rectifier, halfwave rectifier etc.Filter unit can adopt filter capacitor.
The beneficial effect of the utility model V/P voltage source-taking apparatus is: get resource loop by the V/P in the setting of high-voltage load lead, V/P gets the input of the output connection rectification unit of resource loop, the output of rectification unit output as a whole is provided with filter unit between the output of rectification unit.Make the utility model when powering, be not subjected to the influence of load size,, provide working power Vcc unaffected, prevent that electric energy meter from quitting work as long as there is voltage just can obtain the generation power supply to electric energy meter.The utility model is simple in structure, realizes easily, and is applicable to that high-low pressure is isolated, shielding, is applicable to the power supply to the weak signal electric energy meter.
Description of drawings
Fig. 1 is a functional-block diagram of the present utility model;
Fig. 2 is the circuit theory diagrams of embodiment of the present utility model.
Fig. 1-2 is the most preferred embodiment of the utility model V/P voltage source-taking apparatus, wherein: T1, current transformer R1, impedance BR1, rectifier bridge C1, electric capacity.
Embodiment
Below in conjunction with accompanying drawing 1-2 V/P voltage source-taking apparatus of the present utility model is described further.
As shown in Figure 1:
At the high-voltage load lead V/P is set and gets resource loop, V/P gets the input of the output connection rectification unit of resource loop, and the output of rectification unit output as a whole connects filter unit between the output of rectification unit.
V/P gets resource loop and comprises at least one current transformer and at least one impedance, the first side winding of current transformer is connected with impedance, an end connects the high-voltage load lead then, and the other end connects public ground, and the secondary side winding output of current transformer connects the input of rectification unit.The first side winding of current transformer is connected with impedance in addition, and two ends connect two high-voltage load leads of different phase sequences respectively then, and the secondary side winding output of current transformer connects the input of rectification unit.These two kinds of connected modes can be gathered voltage difference and produce voltage at secondary side, and be produced power supply by the effect of rectification unit and filter unit by current transformer.
During use, the power end of whole power consumption equipments such as output connection electric energy meter.V/P gets resource loop and obtains electric energy from the high-voltage load lead, handles through rectification unit and filter unit, supplies with power consumption equipment and uses.
As shown in Figure 2, a kind of implementation that V/P gets resource loop can be: the first side winding of current transformer T1 is connected with impedance R1, terminals are the input that V/P gets resource loop then, and the secondary side winding output of current transformer T1 connects the input of rectification unit BR1.Capacitor C 1 is set, as filter unit between the output of rectification unit BR1.
Current characteristics is selected different rectification circuits, for example: bridge rectifier, voltage multiplying rectifier, halfwave rectifier etc.
Claims (4)
1, V/P voltage source-taking apparatus, comprise rectification unit and filter unit, it is characterized in that: on the high-voltage load lead, V/P is set and gets resource loop, V/P gets the input of the output connection rectification unit of resource loop, the output of rectification unit output as a whole is provided with the filtering voltage regulation unit between the output of rectification unit.
2, V/P voltage source-taking apparatus according to claim 1, it is characterized in that: described V/P gets resource loop and comprises current transformer and impedance, the first side winding of current transformer is connected with impedance, an end connects the high-voltage load lead then, the other end connects public ground, and the secondary side winding output of current transformer connects the input of rectification unit.
3, V/P voltage source-taking apparatus according to claim 1, it is characterized in that: described V/P gets resource loop and comprises current transformer and impedance, the first side winding of current transformer is connected with impedance, two ends connect two high-voltage load leads of different phase sequences respectively then, and the secondary side winding output of current transformer connects the input of rectification unit.
4, V/P voltage source-taking apparatus according to claim 1, it is characterized in that: V/P gets resource loop and comprises current transformer T1 and impedance R1, the first side winding of current transformer T1 is connected with impedance R1, terminals are the input that V/P gets resource loop then, and the secondary side winding output of current transformer T1 connects the input of rectification unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202264860U CN201307833Y (en) | 2008-12-04 | 2008-12-04 | V/P voltage source device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202264860U CN201307833Y (en) | 2008-12-04 | 2008-12-04 | V/P voltage source device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201307833Y true CN201307833Y (en) | 2009-09-09 |
Family
ID=41100299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202264860U Expired - Lifetime CN201307833Y (en) | 2008-12-04 | 2008-12-04 | V/P voltage source device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201307833Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109113980A (en) * | 2018-08-17 | 2019-01-01 | 珠海瑞景电子科技有限公司 | Idle reversal protection device circuit based on compressor |
-
2008
- 2008-12-04 CN CNU2008202264860U patent/CN201307833Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109113980A (en) * | 2018-08-17 | 2019-01-01 | 珠海瑞景电子科技有限公司 | Idle reversal protection device circuit based on compressor |
| CN109113980B (en) * | 2018-08-17 | 2020-08-07 | 珠海瑞景电子科技有限公司 | Compressor-based non-power-consumption reverse protector circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2019154050A1 (en) | Non-intrusive load identification-based submetering smart electricity meter | |
| CN105093140B (en) | A kind of method and its device of the detection of transformer remanent magnetism and demagnetization | |
| CN101271129B (en) | Sensor type high tension electricity energy gauging method | |
| CN102890170B (en) | Three-phase electric energy meter false wiring automated conversion system | |
| CN107402324B (en) | Power supply sampling circuit and method based on single current transformer and low-voltage circuit breaker thereof | |
| CN202041624U (en) | Direct-current high-voltage test integrated device for internal water cooling generator | |
| CN106443561A (en) | Overall inspection method and apparatus for electric energy metering devices of 35kV or below | |
| CN207601164U (en) | Electric safety system residual current monitoring module | |
| CN204008785U (en) | Measurement loop fault monitoring system | |
| CN201263094Y (en) | Source-fetching device for I/P current | |
| CN201307833Y (en) | V/P voltage source device | |
| CN202886585U (en) | On-line test device for voltage/current transformer | |
| CN201508373U (en) | Three-phase current generator | |
| CN203606404U (en) | Multiple transformation ratio current transformer intelligent control device | |
| CN104734163A (en) | Power factor compensation device in light-load operating of transformer, connecting system and compensation method thereof | |
| CN201615920U (en) | Alternating current milliammeter | |
| CN208754199U (en) | Non-isolated power supply circuit and its electric energy meter based on flyback chip | |
| CN104022516A (en) | Reactive compensation method and device for photovoltaic power generation system, and photovoltaic power generation system | |
| CN107167641A (en) | A kind of portable section metering device | |
| CN207866910U (en) | Transforming plant DC power-supply system electric energy quality assessment device | |
| CN201016997Y (en) | Sensor type high-voltage electrical energy meter | |
| CN207743852U (en) | The wiring of current transformer High-current output and mutual inductor, installation, fixing device | |
| CN206756946U (en) | A kind of jack box multi-way intelligence electrical parameter measuring instrument | |
| CN2136475Y (en) | High- and low-voltage power metering box | |
| JP3104355U (en) | Transformer loss measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shandong Jibao Electric Co., Ltd. Assignor: Zibo Jibao Mutual Inductor Inst. Contract record no.: 2012370000019 Denomination of utility model: V/P voltage source device Granted publication date: 20090909 License type: Exclusive License Record date: 20120319 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090909 |