CN202102038U - Shunting current transformer - Google Patents
Shunting current transformer Download PDFInfo
- Publication number
- CN202102038U CN202102038U CN2011201333507U CN201120133350U CN202102038U CN 202102038 U CN202102038 U CN 202102038U CN 2011201333507 U CN2011201333507 U CN 2011201333507U CN 201120133350 U CN201120133350 U CN 201120133350U CN 202102038 U CN202102038 U CN 202102038U
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- CN
- China
- Prior art keywords
- mutual inductor
- shunt
- current
- copper wire
- manganese copper
- 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
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Abstract
The utility model relates to a shunting current transformer, mainly comprising a shunt, a mutual inductor and a fixing rack, wherein both ends of the shunt are connected with a power supply, two ports of the shunt are connected through a manganese copper wire, the manganese copper wire is configured to be coupled with the mutual inductor, the shunt and the mutual inductor are all fixed on the fixing rack, and both ends of the mutual inductor are provided with current sampling output ends, and between the current sampling output ends there is provided a resistor. The arrangement of the shunt and the manganese copper wire enables the interference on external magnetic field to be greatly reduced and the DC component to be increased without influence on internal magnetic field, and also enables the output signal to be stable; and the mutual inductor is comprised by coils and an iron core, thereby increasing the anti-interference capability of the mutual inductor. Due to the shunting of the shunt and the manganese copper wire, the circuit loop and a measuring unit are electrically isolated, thereby being high in safety; the great current proportion difference enables the anti-interference capability to be greatly increased, thereby increasing the linear range and precision for measurement; and the volume can be reduced, thereby reducing the cost.
Description
Technical field
The utility model relates to sampling and measures the devices field of alternating current, especially a kind of partial current mutual inductor.
Background technology
Two types of devices are used in general alternating current sampling: one type is the low resistance shunt of pure resistance; Another kind of is current transformer, and current transformer also comprises the current transformer and the hollow coil current transformer of ribbon core coil.Have during the low resistance shunt measuring element of pure resistance that current return and measuring unit are electric can not isolate and poor stability, the weak problem of antijamming capability; There is the problem of non-sinusoidal wave current measurement low precision in the common current mutual inductor, and Super-Current Measurement needs the current transformer of big volume, if the big anti-DC component of electric current, volume greatly increases, and cost is risen, and ammeter is not easy to accomplish miniaturization; Hollow coil current transformer, mainly exist anti-external magnetic field ability weak with input and output than low problem.
The utility model content
The purpose of the utility model is to provide a kind of measuring accuracy high for the deficiency that solves above-mentioned technology, anti-DC component and the strong branch current transformer of anti-external interference ability.
In order to achieve the above object, the partial current mutual inductor that the utility model designed, it mainly comprises shunt, mutual inductor and fixed mount; Be connected with power supply at the shunt two ends; Be connected with manganese-copper filament between two ports on the shunt, manganese-copper filament and mutual inductor coupling are provided with, and shunt and mutual inductor all are fixed on the fixed mount; The two ends of mutual inductor are provided with the current sample output terminal, between the current sample output terminal, are provided with resistance.It is loosening that this structure can make mutual inductor and manganese-copper filament structure more firmly be difficult for, and is difficult for breaking down, and makes and improve the precision of measuring, and strengthened stability.
In order to increase the antijamming capability of mutual inductor, described mutual inductor is made up of coil and iron core.
Resulting minute current transformer of the utility model; The setting of shunt and manganese-copper filament; This structure weakens the interference and the raising DC component in magnetic field to external world greatly, can the magnetic field of inside not exerted an influence, and makes stable output signal; Mutual inductor is made up of coil and iron core, has improved the antijamming capability of mutual inductor.Because the shunting between shunt and the manganese-copper filament is come current return and measuring unit electrical isolation, and is safe; Big its antijamming capability that increased of current ratio gap; Also improved the range of linearity and the measuring accuracy measured, and volume can dwindle, thereby reduce cost.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Combine accompanying drawing that the utility model is done further to describe through embodiment below.
Embodiment 1:
Partial current mutual inductor as shown in Figure 1, that present embodiment is described, it mainly comprises shunt 2, mutual inductor 7 and fixed mount 4; Be connected with power supply 1 at shunt 2 two ends, be connected with manganese-copper filament 3 between two ports on the shunt 2, manganese-copper filament 3 is provided with mutual inductor 7 couplings; Shunt 2 all is fixed on the fixed mount 4 with mutual inductor 7; The two ends of mutual inductor 7 are provided with current sample output terminal 6, are provided with resistance 5 between the current sample output terminal 6, and mutual inductor 7 is made up of coil 9 and iron core 8.
Claims (2)
1. partial current mutual inductor; It mainly comprises shunt, mutual inductor and fixed mount, it is characterized in that the shunt two ends are connected with power supply, is connected with manganese-copper filament between two ports on the shunt; Manganese-copper filament and mutual inductor coupling are provided with; Shunt and mutual inductor all are fixed on the fixed mount, are provided with the current sample output terminal at the two ends of mutual inductor, between the current sample output terminal, are provided with resistance.
2. partial current mutual inductor according to claim 1 is characterized in that mutual inductor is made up of coil and iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201333507U CN202102038U (en) | 2011-04-29 | 2011-04-29 | Shunting current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201333507U CN202102038U (en) | 2011-04-29 | 2011-04-29 | Shunting current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202102038U true CN202102038U (en) | 2012-01-04 |
Family
ID=45388043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201333507U Expired - Lifetime CN202102038U (en) | 2011-04-29 | 2011-04-29 | Shunting current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202102038U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103632824A (en) * | 2012-03-12 | 2014-03-12 | 魏孝铭 | Annular symmetrical shunting type current transformer |
-
2011
- 2011-04-29 CN CN2011201333507U patent/CN202102038U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103632824A (en) * | 2012-03-12 | 2014-03-12 | 魏孝铭 | Annular symmetrical shunting type current transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG YONGTAILONG ELECTRONIC CO., LTD. Free format text: FORMER NAME: ZHEJIANG YONGTAILONG ELECTRONICS CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 314500, No. 8, Kangding Road, Tongxiang Economic Development Zone, Indus street, Tongxiang, Zhejiang, Jiaxing Patentee after: Zhejiang Yongtailong Electronic Co., Ltd. Address before: 314500 No. 8, Kangding Road, Tongxiang Economic Development Zone, Jiaxing, Zhejiang Patentee before: Zhejiang Yongtailong Electronics Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120104 |