CN110568244A - Primary and secondary fusion voltage and current integrated sensor - Google Patents
Primary and secondary fusion voltage and current integrated sensor Download PDFInfo
- Publication number
- CN110568244A CN110568244A CN201910913401.9A CN201910913401A CN110568244A CN 110568244 A CN110568244 A CN 110568244A CN 201910913401 A CN201910913401 A CN 201910913401A CN 110568244 A CN110568244 A CN 110568244A
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- China
- Prior art keywords
- voltage
- sensor
- current
- capacitor
- transformer
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- 230000004927 fusion Effects 0.000 title claims abstract description 15
- 238000005070 sampling Methods 0.000 claims abstract description 14
- 230000005611 electricity Effects 0.000 claims abstract description 12
- 239000003990 capacitor Substances 0.000 claims description 34
- 230000001681 protective effect Effects 0.000 claims description 5
- 239000003985 ceramic capacitor Substances 0.000 claims description 2
- 230000010354 integration Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/04—Voltage dividers
- G01R15/06—Voltage dividers having reactive components, e.g. capacitive transformer
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/06—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using spark-gap arresters
Abstract
The invention discloses a primary and secondary fusion voltage and current integrated sensor, which relates to the technical field of national grid primary and secondary fusion equipment, and adopts the technical scheme that the sensor comprises a body connected to an outdoor high-voltage line, wherein a power-taking sensor, a voltage sensor and a current sensor are arranged in the body; the body is also provided with a current wiring terminal and a lead output port which are electrically connected with an outdoor high-voltage wire; the current sensor is electrically connected to the current terminal and used for outputting the phase current sampling signal, the electricity taking sensor is electrically connected to the current terminal and used for outputting 220v standard voltage, and the voltage sensor is electrically connected to the current terminal and used for outputting the phase voltage sampling signal.
Description
Technical Field
The invention relates to the technical field of national grid primary and secondary fusion equipment, in particular to a primary and secondary fusion voltage and current integrated sensor.
Background
in the construction of a distribution network automation system, the problem of electricity taking of an automation device is always a bottleneck of upgrading and transforming a distribution network line, some devices utilize an electromagnetic voltage transformer to obtain electricity, some devices utilize a current transformer to obtain electricity, and other devices utilize a solar power generation device to obtain electricity, so that in implementation and application, either the investment is large, wiring is complex and unreliable, and the influence of external factors such as operating environment, climate change, line load and the like is possible, thereby limiting the development of distribution network automation. Meanwhile, each part for getting electricity in the prior art is of a split structure, and the functions of outputting phase current sampling signals, phase voltage sampling signals and supplying power are respectively realized.
however, the separate arrangement of the components results in poor stability of the wiring line and inconvenience in assembly and installation.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a primary and secondary fusion voltage and current integrated sensor which can simultaneously output phase voltage sampling signals, phase current sampling signals and a power supply function and has the advantages of simple structure, stable wiring cables and convenience in assembly.
In order to achieve the purpose, the invention provides the following technical scheme: a primary and secondary fusion voltage and current integrated sensor comprises a body connected to an outdoor high-voltage line, wherein a power taking sensor, a voltage sensor and a current sensor are arranged in the body; the body is also provided with a current wiring terminal and a lead output port which are electrically connected with an outdoor high-voltage wire; the current sensor is electrically connected to the current terminal and used for outputting phase current sampling signals, the electricity taking sensor is electrically connected to the current terminal and used for outputting 220v standard voltage, and the voltage sensor is electrically connected to the current terminal and used for outputting phase voltage sampling signals.
Through adopting above-mentioned technical scheme, get the volume of electric sensor less, will get electric sensor, voltage sensor and current sensor and all install same this internal back, will install to outdoor high-voltage line on through the body, reduced wiring line's the degree of difficulty, improved wiring line's stability, and assembly simple to operate, only need install a body can.
The invention is further configured to: the electricity-taking sensor comprises a capacitor assembly and a transformer, wherein the capacitor assembly comprises a capacitor C3 and a capacitor C4 which are connected in series, the positive electrode of the capacitor C3 is coupled to a current terminal, the negative electrode of the capacitor C4 is coupled to a grounding terminal, the connection point between the capacitor C3 and the capacitor C4 is coupled to the output end of the transformer, and the transformer outputs 220v of standard voltage.
Through adopting above-mentioned technical scheme, utilize series capacitance partial pressure principle, divide into the relatively less voltage with big voltage, then realize exporting 220 v's standard voltage through the transformer again, this kind of structure sets up the mode of comparing originally adopting big iron core and big winding, and this kind gets electric sensor has small advantage.
The invention is further configured to: the capacitor assembly adopts a high-voltage ceramic capacitor.
By adopting the technical scheme, the device has the advantages of large working current and strong anti-interference capability.
The invention is further configured to: and a protective tube is connected in series between the negative electrode of the capacitor assembly and the input end of the transformer.
by adopting the technical scheme, when the current is overlarge, the protective tube can be blown, and the transformer and the high-voltage capacitor are protected.
The invention is further configured to: and a discharge tube is connected in series between the grounding wire of the transformer and the input end of the transformer.
Through adopting above-mentioned technical scheme, when the voltage sudden change risees, for example the electric shock, discharge tube switches on, realizes switching on of heavy current and ground, plays the effect of protection high-voltage capacitor and transformer.
The invention is further configured to: the current sensor is arranged in a concave shape, and the voltage sensor is positioned on one side far away from the current sensor in the body.
By adopting the technical scheme, the distance between the voltage sensor and the current sensor is increased as much as possible, and the mutual interference between the voltage sensor and the current sensor is reduced.
The invention is further configured to: the body is provided with an arc-shaped groove for placing an outdoor high-voltage wire.
Through adopting above-mentioned technical scheme, the outdoor high-voltage line of being convenient for places, also be convenient for the later stage with the outdoor high-voltage line of current conducting plate extrusion to the electricity of guaranteeing current conducting plate and outdoor high-voltage line is connected stably, the current conducting plate is connected with the electric current wiring end electricity again.
The invention is further configured to: and a waterproof plug is arranged on the lead output port of the body.
Through adopting above-mentioned technical scheme, get electric sensor, voltage sensor and current sensor's output and all pass through wire cable connection, wire cable rethread wire output port goes up waterproof plug time delay to the body outside, plays waterproof effect.
In summary, the power-taking sensor, the voltage sensor and the current sensor are arranged in the same body, the power supply function, the phase voltage sampling signal and the phase current sampling signal can be obtained only by arranging the whole body on an outdoor high-voltage line, the power-taking sensor is input to the transformer by adopting a capacitance voltage division principle, and then the transformer outputs 220v standard voltage, so that the effect of reducing the whole volume is achieved.
Drawings
FIG. 1 is a schematic view of a partial structure of the present invention;
FIG. 2 is a schematic view of a portion of the electrical sensor according to the present invention;
FIG. 3 is a partial schematic view of the present invention highlighting the location of the voltage and current sensors;
FIG. 4 is a schematic view of a partial structure of a salient current sensor according to the present invention;
Fig. 5 is a schematic circuit diagram of the voltage section in the present invention.
Reference numerals: 1. a body; 2. a current terminal; 3. an arc-shaped slot; 4. taking a power sensor; 5. a voltage sensor; 6. a current sensor; 7. a capacitive component; 8. a protection adjustment section; 9. a transformer; 10. a fuse tube; 11. a discharge tube; 12. a wire output port; 13. a waterproof plug.
Detailed Description
The invention is further described with reference to the accompanying drawings.
The embodiment discloses a voltage and current integration sensor is fused to a secondary, as shown in figure 1, as shown in figure 2, including connecting body 1 on outdoor high-voltage line, 1 upper end of body is provided with the electric current wiring end 2 of being connected with outdoor high-voltage line electricity, it has the arc wall 3 that supplies outdoor high-voltage line to place to open on body 1, when later stage is connected body 1 with outdoor high-voltage line, place one section of outdoor high-voltage line in arc wall 3 department earlier, then be equipped with a current conducting plate (not shown in the figure) on body 1, realize through conductive bolt between current conducting plate and the electric current wiring end 2 and be connected electrically, the current conducting plate extrudees outdoor high-voltage line to arc wall 3 department, thereby realize that the electricity between outdoor high-voltage line and the electric. The current terminal 2 can be provided in a plurality, part of the current terminal 2 is used for conducting the conductive plate, and part of the current terminal 2 is used for connecting and fixing with an external device. This application is provided with four current wiring terminal 2, and wherein two are used for being connected fixedly with external device, and two current wiring terminal 2 are used for switching on the current conducting plate.
As shown in fig. 2 and 3, a power-taking sensor 4, a voltage sensor 5 and a current sensor 6 are arranged in the body 1; the current sensor 6 is electrically connected to the current terminal 2 and is used for outputting a phase current sampling signal, the power-taking sensor 4 is electrically connected to the current terminal 2 and is used for outputting a standard voltage of 220v (power supply function), and the voltage sensor 5 is electrically connected to the current terminal 2 and is used for outputting a phase voltage sampling signal.
as shown in fig. 2 and 5, the electricity-getting sensor 4 includes a capacitor assembly 7 and a protection adjustment portion 8, the protection adjustment portion 8 includes a transformer 9, an output end of the transformer 9 outputs a standard voltage of 220v, the capacitor assembly 7 includes a capacitor C3 and a capacitor C4 which are arranged in series, an anode of a capacitor C3 is coupled to the current terminal 2, a cathode of a capacitor C4 is coupled to a ground terminal, a connection point between the capacitor C3 and a capacitor C4 is coupled to the output end of the transformer 9, the transformer 9 outputs the standard voltage of 220v, a large voltage is divided into relatively small voltages by using a series capacitor voltage division principle, and then the transformer 9 is used for outputting the standard voltage of 220 v.
As shown in fig. 2, the protection adjustment portion 8 further includes a fuse 10 and a discharge tube 11; the protective tube 10 is connected in series between the negative electrode of the capacitor assembly 7 and the input end of the transformer 9, and when the current is too large, the protective tube 10 can be blown out, so that the transformer 9 and the high-voltage capacitor are protected. The discharge tube 11 is connected in series between the grounding line of the transformer 9 and the input end of the transformer 9, when the voltage suddenly rises, such as an electric shock, the discharge tube 11 is conducted, the conduction of a large current and the ground is realized, and the function of protecting the high-voltage capacitor and the transformer 9 is achieved.
As shown in fig. 3 and 4, the current sensor 6 is concave, and the voltage sensor 5 is located on the side far from the current sensor 6 in the body 1, so that the distance between the voltage sensor 5 and the current sensor 6 is increased as much as possible, and the mutual interference between the voltage sensor 5 and the current sensor 6 is reduced.
As shown in fig. 2 and 3, a wire output port 12 is integrally formed at the lower end of the body 1, a waterproof plug 13 is arranged on the wire output port 12, the output ends and the grounding ends of the power sensor 4, the voltage sensor 5 and the current sensor 6 are all connected through a wire cable, and the wire cable delays to the outside of the body 1 through the waterproof plug 13 on the wire output port 12 to play a waterproof role.
The concrete effects are as follows:
Get electric sensor 4's volume less, will get electric sensor 4, voltage sensor 5 and current sensor 6 and all install back in same body 1, will install to outdoor high-voltage line on through body 1, reduced wiring line's the degree of difficulty, improved wiring line's stability, and assembly simple to operate, only need install a body 1 can.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the design concept of the present invention should be included in the scope of the present invention.
Claims (8)
1. the utility model provides a secondary fuses voltage and current integration sensor, is including connecting body (1) on outdoor high-voltage line, characterized by: the body (1) is internally provided with a power taking sensor (4), a voltage sensor (5) and a current sensor (6); the body (1) is also provided with a current terminal (2) electrically connected with an outdoor high-voltage line and a lead output port (12); the current sensor (6) is electrically connected to the current terminal (2) and used for outputting phase current sampling signals, the electricity taking sensor (4) is electrically connected to the current terminal (2) and used for outputting 220v standard voltage, and the voltage sensor (5) is electrically connected to the current terminal (2) and used for outputting phase voltage sampling signals.
2. A secondary fusion voltage-current integrated sensor as claimed in claim 1, wherein: the electricity-taking sensor (4) comprises a capacitor assembly (7) and a transformer (9), wherein the capacitor assembly (7) comprises a capacitor C3 and a capacitor C4 which are arranged in series, the anode of the capacitor C3 is coupled to a current terminal (2), the cathode of the capacitor C4 is coupled to a ground terminal, the connection point between the capacitor C3 and the capacitor C4 is coupled to the output end of the transformer (9), and the transformer (9) outputs 220v of standard voltage.
3. A secondary fusion voltage-current integrated sensor as claimed in claim 2, wherein: the capacitor assembly (7) adopts a high-voltage ceramic capacitor.
4. A secondary fusion voltage-current integrated sensor as claimed in claim 2, wherein: and a protective tube (10) is connected in series between the negative electrode of the capacitor assembly (7) and the input end of the transformer (9).
5. A secondary fusion voltage-current integrated sensor as claimed in claim 2, wherein: and a discharge tube (11) is connected in series between the grounding wire of the transformer (9) and the input end of the transformer (9).
6. A secondary fusion voltage-current integrated sensor as claimed in claim 1, wherein: the current sensor (6) is arranged in a concave shape, and the voltage sensor (5) is positioned on one side far away from the current sensor (6) in the body (1).
7. A secondary fusion voltage-current integrated sensor as claimed in claim 1, wherein: the body (1) is provided with an arc-shaped groove (3) for placing an outdoor high-voltage wire.
8. A secondary fusion voltage-current integrated sensor as claimed in claim 7, wherein: and a waterproof plug (13) is arranged on the lead output port (12) of the body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910913401.9A CN110568244A (en) | 2019-09-25 | 2019-09-25 | Primary and secondary fusion voltage and current integrated sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910913401.9A CN110568244A (en) | 2019-09-25 | 2019-09-25 | Primary and secondary fusion voltage and current integrated sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110568244A true CN110568244A (en) | 2019-12-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910913401.9A Pending CN110568244A (en) | 2019-09-25 | 2019-09-25 | Primary and secondary fusion voltage and current integrated sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110568244A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111679114A (en) * | 2020-04-24 | 2020-09-18 | 国网江苏省电力有限公司营销服务中心 | Direct current on-line measuring device for distributed energy efficiency calibration |
| CN112485600A (en) * | 2020-12-09 | 2021-03-12 | 国网四川省电力公司电力科学研究院 | Distribution line fault path detection primary and secondary fusion sensor and sensor network |
| CN114137285A (en) * | 2021-11-24 | 2022-03-04 | 广东电网有限责任公司 | Charged display |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006021030A1 (en) * | 2004-08-23 | 2006-03-02 | Fault Detectors Pty Ltd | Electrical power line sensing and sensor assembly |
| CN106771469A (en) * | 2017-03-14 | 2017-05-31 | 江苏靖江互感器股份有限公司 | Controller switching equipment merges three-phase intelligent Current Voltage integration transformers with one or two times |
| CN209072090U (en) * | 2018-11-14 | 2019-07-05 | 新乡市中宝电气有限公司 | A kind of self-energizing Intelligent fault isolating device |
| CN209150714U (en) * | 2018-10-31 | 2019-07-23 | 国网新疆电力有限公司阿克苏供电公司 | One or two fusion intelligent breakers based on full electronic mutual inductor |
| CN210894471U (en) * | 2019-09-25 | 2020-06-30 | 中互(杭州)电子科技有限公司 | Primary and secondary fusion voltage and current integrated sensor |
-
2019
- 2019-09-25 CN CN201910913401.9A patent/CN110568244A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006021030A1 (en) * | 2004-08-23 | 2006-03-02 | Fault Detectors Pty Ltd | Electrical power line sensing and sensor assembly |
| CN106771469A (en) * | 2017-03-14 | 2017-05-31 | 江苏靖江互感器股份有限公司 | Controller switching equipment merges three-phase intelligent Current Voltage integration transformers with one or two times |
| CN209150714U (en) * | 2018-10-31 | 2019-07-23 | 国网新疆电力有限公司阿克苏供电公司 | One or two fusion intelligent breakers based on full electronic mutual inductor |
| CN209072090U (en) * | 2018-11-14 | 2019-07-05 | 新乡市中宝电气有限公司 | A kind of self-energizing Intelligent fault isolating device |
| CN210894471U (en) * | 2019-09-25 | 2020-06-30 | 中互(杭州)电子科技有限公司 | Primary and secondary fusion voltage and current integrated sensor |
Non-Patent Citations (1)
| Title |
|---|
| 段雄英等: "电压/电流组合型电子式互感器的研究", 电工技术杂志, no. 05 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111679114A (en) * | 2020-04-24 | 2020-09-18 | 国网江苏省电力有限公司营销服务中心 | Direct current on-line measuring device for distributed energy efficiency calibration |
| CN112485600A (en) * | 2020-12-09 | 2021-03-12 | 国网四川省电力公司电力科学研究院 | Distribution line fault path detection primary and secondary fusion sensor and sensor network |
| CN114137285A (en) * | 2021-11-24 | 2022-03-04 | 广东电网有限责任公司 | Charged display |
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