Novel mini-type mutual inductor for wide area measurement
A wide-area measurement and transformer technology, which is applied in the field of new wide-area measurement miniature transformers, can solve the problems of low material utilization, high cost, and narrow measurement range, and achieve compact edge size, low cost, and installation space requirements low effect
Inactive Publication Date: 2015-06-03
ANHUI YONG AN ELECTRONICS TECH CO LTD +1
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Problems solved by technology
[0002] Existing transformers are designed as general-purpose parts, and the narrow measurement range is not suitable for wide-area measurement ranges. For different measurement requirements, a large number of different types of products are required to correspond to them.
In addition, the existing general-purpose transformers are large in size and cannot meet the customer's product requirements for compact edge sizes. The cost of the existing general-purpose transformers is high and the material utilization rate is low.
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[0019] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0020] figure 1 It shows the working principle diagram of the micro-transformer for wide-area measurement provided by the embodiment of the present invention. The principle is to realize the measurement of the input current through the measurement and calculation of the shunt loop current and the number of turns of the coil. P1 and P2 are the total circuit, I 1 , I 2 is the shunt loop current, S1 and S2 are the output terminals, assuming that x is the shunt ratio of the current loop, n is the number of turns of the transformer coil, i is the current measured by the output signal, I is the input c...
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The invention belongs to the technical field of ammeters and particularly relates to a novel mini-type mutual inductor for wide area measurement, which can be internally embedded and is integrated with an ammeter terminal seat. The mutual inductor is used for measuring input current through the measurement of shunting circuit current and the turn numbers of coils. According to the mutual inductor provided by the embodiment of the invention, the diameter of a magnetic core is smaller so that the volume of the mutual inductor is very small, the cost is greatly reduced and the measurement range is wide.
Description
technical field [0001] The invention belongs to the technical field of electric meters, and in particular relates to a novel wide-area measuring miniature transformer which can be inlaid and is integrated with a terminal seat of the electric meter. Background technique [0002] The existing transformers are designed as general-purpose parts, and the narrow measurement range is not suitable for wide-area measurement ranges. A large number of different types of products are required to correspond to different measurement requirements. In addition, the existing general-purpose transformers are large in size and cannot meet the customer's product requirements for compact edge sizes. The cost of the existing general-purpose transformers is high and the material utilization rate is low. Contents of the invention [0003] In view of the above existing problems in the prior art, the object of the present invention is to provide a new wide-area measurement miniature transformer, wh...
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IPC IPC(8): H01F38/30H01F27/24G01R15/18
Inventor 胡生沈辉马利民卢宏亮张黄军王琦江·伟明
Owner ANHUI YONG AN ELECTRONICS TECH CO LTD