CN201829340U - Electric assembled mutual inductor - Google Patents
Electric assembled mutual inductor Download PDFInfo
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- CN201829340U CN201829340U CN2010205613894U CN201020561389U CN201829340U CN 201829340 U CN201829340 U CN 201829340U CN 2010205613894 U CN2010205613894 U CN 2010205613894U CN 201020561389 U CN201020561389 U CN 201020561389U CN 201829340 U CN201829340 U CN 201829340U
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- mutual inductor
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Abstract
The utility model discloses an electric assembled mutual inductor which comprises a voltage component, a current component, a signal processing unit, a primary current incoming line end and a primary current outgoing line end, wherein the voltage component is a voltage mutual inductor, and the current component is a current mutual inductor; the primary current incoming line end is connected with the primary current outgoing line end by a wiring copper bar which penetrates through a primary coil of the current mutual inductor; the primary current incoming line end is connected with a high-voltage incoming line end of the voltage mutual inductor; and a secondary voltage signal of the voltage mutual inductor and a secondary current signal of the current mutual inductor are respectively connected with the signal processing unit by a voltage signal wire and a current signal wire. Due to the structural design, the electric assembled mutual inductor is good in electromagnetic compatibility, is small in error and high in precision as being directly connected with a metering chip, and can save a mass of labor power and material resources when being installed as being simple and reasonable in structure, small in volume and light in weight.
Description
Technical field
The utility model relates to a kind of electric power system instrument transformer, especially relates to a kind of electronic combined mutual inductor.
Background technology
At present, the metering that is used in the high-voltage electric power system metering cabinet all is the discrete structure of the current transformer of electromagnetic potential transformer and electromagnetic type with instrument transformer.Adopt such structure directly to realize and the primary power source power supply synchronization the gauge table meter, but volume is big, power consumption is big, needs could connect computation chip by the secondary voltage summation current transformer, and it is many that error is introduced link, influences measuring accuracy.Adopt the electronic type voltage summation current transformer then can overcome above shortcoming effectively, but the structural design and the EMC Design of combination transformer had higher requirement, and brought to the gauge table meter can not with the problem of primary power source power supply synchronization.
Summary of the invention
At the problems referred to above, the utility model provides a kind of good Electro Magnetic Compatibility that has, and is simple and reasonable, volume is little, the electronic combined mutual inductor of compact conformation, light weight.
The utility model is that the technical scheme that its technical problem of solution is adopted is:
Electronic combined mutual inductor, comprise voltage components and parts, current element device, primary current end of incoming cables and primary current leading-out terminal, described voltage components and parts are voltage transformer, described current element device is a current transformer, also comprise signal processing unit, described primary current end of incoming cables and primary current leading-out terminal link together by copper busbar, and this copper busbar is arranged in the primary winding of current transformer; The primary current end of incoming cables links to each other with the high pressure end of incoming cables of voltage transformer; The secondary voltage signal of described voltage transformer, the secondary current signal of current transformer are connected to signal processing unit by voltage signal line, current signal line respectively.
As further improvement of the utility model, described primary current leading-out terminal is connected with high pressure power taking element, and the signal of telecommunication of described high pressure power taking element is connected to signal processing unit by the electric capacity lead-in wire.
Further, described voltage transformer is an electric resistance partial pressure type electronic type voltage transformer.
Further, described voltage transformer is arranged on the lower-left side of current transformer, and described power taking capacitor is arranged on the lower right side of current transformer; Described voltage transformer, current transformer and power taking capacitor are by poured with epoxy resin together.
The beneficial effects of the utility model are: the utility model is set up electronic type voltage, current transformer the mode of stating and is combined, by the electronic signal process unit voltage, current signal are handled then, this design has realized good Electro Magnetic Compatibility, also can directly be connected with computation chip, error is little, precision is high; And simple and reasonable, volume is little, light weight, can save lot of manpower and material resources during installation; In addition, introduced high pressure power taking element, can easily realize directly in the high-pressure side power taking, used to supply with the electronic signal process unit, and when having solved the gauge table meter and having linked to each other with electronic mutual inductor, with the problem of primary power source power supply synchronization, avoid independent all inconvenience of being brought for the electronic signal process unit simultaneously from externally fed, can save cost greatly.
Description of drawings
The invention will be further described below in conjunction with the drawings and specific embodiments:
Fig. 1 is the whole generalized section of the utility model embodiment;
Fig. 2 is left view and the partial sectional view of the utility model embodiment;
Fig. 3 is the vertical view of the utility model embodiment.
Embodiment
With reference to Fig. 1, Fig. 2, Fig. 3, the disclosed a kind of electronic combined mutual inductor of the utility model, comprise voltage components and parts 1, current element device 2, signal processing unit (not embodying among the figure), primary current end of incoming cables and primary current leading-out terminal, wherein, described voltage components and parts 1 are voltage transformer, described current element device 2 is a current transformer, described primary current end of incoming cables and primary current leading-out terminal link together by copper busbar 5, and this copper busbar 5 is arranged in the primary winding of current transformer 2; The high pressure end of incoming cables of described primary current end of incoming cables and voltage transformer 1 links together by inboard nut 3 on first; The secondary voltage signal of described voltage transformer 1, the secondary current signal of current transformer 2 are connected to signal processing unit by voltage signal line 11, current signal line 21 respectively.
As preferred implementation of the present utility model, the primary current leading-out terminal by second on inboard nut 4 be connected with high pressure power taking element 6, this high pressure power taking element 6 can be the power taking capacitor, it can be directly from the high-pressure side power taking, and this power supply signal connects power wiring seat 8 by electric capacity lead-in wire 61, and then be connected with signal processing unit, for each module in the signal processing unit provides power supply, thereby solved when the gauge table meter links to each other with electronic mutual inductor and the problem of primary power source power supply synchronization.
As preferred implementation of the present utility model, voltage transformer 1 can adopt electric resistance partial pressure type electronic type voltage transformer, this instrument transformer comprises divider resistance 12, last metal cap 13, following metal cap 14, the high-pressure side of described divider resistance 12 is connected to inboard nut 3 on first, the low-pressure end of described divider resistance 12 is connected to down left side nut 7, last metal cap 13 is centered around the high-pressure side of divider resistance 12, following metal cap 14 is centered around the low-pressure end of divider resistance 12, and the lower end of last metal cap 13 is formed with lap with the upper end of following metal cap 14 with nested mode, and make and keep a safe distance between lap diametrically, this structure can make divider resistance obtain better shield effectiveness, improves the anti-interference of voltage transformer.
Wherein, voltage transformer 1 is arranged on the lower-left side of current transformer 2, and high pressure power taking element 6 is arranged on the lower right side of current transformer 2, and voltage transformer 1, current transformer 2 and high pressure power taking element 6 by poured with epoxy resin in an integral body.
More than be that preferred embodiment of the present utility model is specified, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement under the prerequisite of the utility model spirit, distortion that these are equal to or replacement all are included in the application's claim institute restricted portion.
Claims (6)
1. electronic combined mutual inductor, comprise voltage components and parts, current element device, primary current end of incoming cables and primary current leading-out terminal, described voltage components and parts are voltage transformer, described current element device is a current transformer, it is characterized in that: also comprise signal processing unit, described primary current end of incoming cables and primary current leading-out terminal link together by copper busbar, and this copper busbar is arranged in the primary winding of current transformer; The primary current end of incoming cables links to each other with the high pressure end of incoming cables of voltage transformer; The secondary voltage signal of described voltage transformer, the secondary current signal of current transformer are connected to signal processing unit by voltage signal line, current signal line respectively.
2. electronic combined mutual inductor according to claim 1 is characterized in that: described primary current leading-out terminal is connected with high pressure power taking element, and the signal of telecommunication of described high pressure power taking element is connected to signal processing unit by the electric capacity lead-in wire.
3. electronic combined mutual inductor according to claim 2 is characterized in that: described high pressure power taking element is the power taking capacitor.
4. according to claim 1 or 2 or 3 described electronic combined mutual inductors, it is characterized in that: described voltage transformer is an electric resistance partial pressure type electronic type voltage transformer.
5. electronic combined mutual inductor according to claim 4, it is characterized in that: described electric resistance partial pressure type electronic type voltage transformer comprises divider resistance, last metal cap, following metal cap, described upward metal cap is centered around the high-pressure side of divider resistance, following metal cap is centered around the low-pressure end of divider resistance, and the upper end of the lower end of last metal cap and following metal cap is formed with lap with nested mode, and makes and keep a safe distance between lap diametrically.
6. electronic combined mutual inductor according to claim 1 and 2 is characterized in that: described voltage transformer is arranged on the lower-left side of current transformer, and described power taking capacitor is arranged on the lower right side of current transformer; Described voltage transformer, current transformer and power taking capacitor by poured with epoxy resin in an integral body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205613894U CN201829340U (en) | 2010-10-14 | 2010-10-14 | Electric assembled mutual inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205613894U CN201829340U (en) | 2010-10-14 | 2010-10-14 | Electric assembled mutual inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201829340U true CN201829340U (en) | 2011-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205613894U Expired - Fee Related CN201829340U (en) | 2010-10-14 | 2010-10-14 | Electric assembled mutual inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201829340U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102543412A (en) * | 2010-12-21 | 2012-07-04 | 珠海威瀚科技发展有限公司 | Electronic combined transformer |
| CN103456477A (en) * | 2013-08-29 | 2013-12-18 | 宁波恒力达科技有限公司 | Outdoor low-pressure opening and closing type combined mutual inductor |
| CN105261471A (en) * | 2013-08-02 | 2016-01-20 | 胡小青 | Multifunctional high-voltage transformer |
-
2010
- 2010-10-14 CN CN2010205613894U patent/CN201829340U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102543412A (en) * | 2010-12-21 | 2012-07-04 | 珠海威瀚科技发展有限公司 | Electronic combined transformer |
| CN105261471A (en) * | 2013-08-02 | 2016-01-20 | 胡小青 | Multifunctional high-voltage transformer |
| CN105261471B (en) * | 2013-08-02 | 2019-01-29 | 乐清市华尊电气有限公司 | Multifunctional high-voltage transformer |
| CN103456477A (en) * | 2013-08-29 | 2013-12-18 | 宁波恒力达科技有限公司 | Outdoor low-pressure opening and closing type combined mutual inductor |
| CN103456477B (en) * | 2013-08-29 | 2016-04-13 | 宁波恒力达科技有限公司 | Outdoor low voltage open-close type combination transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20191014 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |