Novel 25kV combined optical transformer sensing unit
A technology of optical transformers and sensitive units, applied in the field of transformers, can solve problems such as difficult installation and maintenance, large size, etc., and achieve the effects of not being easy to high-voltage breakdown, strong environmental adaptability, and reducing insulation hidden dangers
Pending Publication Date: 2022-05-06
中铁物总铁路装备物资有限公司 +2
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Problems solved by technology
[0004] In summary, how to solve the existing problems of transformers in the prior art, especially electromagnetic induction transformers, such as large volume, difficult installation and maintenance, etc., has become an urgent problem to be solved by those skilled in the art
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[0041] The present invention will be described in detail below with reference to the accompanying drawings and examples. Each example is provided by way of explanation of the invention, not limitation of the invention. In fact, those skilled in the art will recognize that modifications and variations can be made in the present invention without departing from the scope or spirit of the invention. For example, features illustrated or described as part of one embodiment can be used on another embodiment to yield a still further embodiment. Therefore, it is intended that the present invention includes such modifications and variations as come within the scope of the appended claims and their equivalents.
[0042] In the description of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", " The orientations or positional relationships indicated by "top", "bottom", etc. are based on the orienta...
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The invention relates to a novel 25kV combined type optical transformer sensing unit, which comprises a 25KV optical fiber composite sleeve, a core body, an optical fiber composite sleeve, a sensing element, an optical fiber composite sleeve and an optical fiber composite sleeve, the optical fiber is spirally wound on the outer side of the core body in an S shape; the upper end flange is arranged at one end of the 25KV optical fiber composite sleeve, and a current optical fiber sensitive ring is arranged in the upper end flange; and the lower end flange is arranged at the other end of the 25KV optical fiber composite sleeve, and a voltage optical sensing unit is fixedly arranged relative to the lower end flange. The current optical fiber sensing ring and the voltage optical sensing unit can be installed at the same time, the whole mutual inductor is of a combined structure, and the integration degree is high; the core body is spirally wound with the optical fiber, two ends of the optical fiber penetrate through the upper and lower end flanges and are provided with the sealing rings for sealing treatment, and the sealing effect is good; the core body is integrally cast by adopting epoxy resin, and the optical fiber is spirally wound on the outer surface of the core body, so that high-voltage breakdown is not easy to occur, the insulating property is excellent, and the insulating problem that the optical current and voltage transformer is difficult to combine is solved.
Description
technical field [0001] The invention relates to the technical field of transformers, and more specifically relates to a novel 25kV combined optical transformer sensitive unit. Background technique [0002] Transformers are necessary equipment for metering, control and relay protection provided for power systems. [0003] At present, in the fields of medium and low voltage power transmission and distribution, high-speed rail and traction substations, most of the transformers used are electromagnetic induction applications. Difficulty in maintenance etc. Contents of the invention [0004] To sum up, how to solve the existing problems of transformers in the prior art, especially electromagnetic induction transformers, such as large volume and difficult installation and maintenance, has become a problem to be solved urgently by those skilled in the art. [0005] The technical solution of the present invention is to overcome the deficiencies of the prior art and provide a nov...
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CPCG01R15/24
Inventor 樊光建张峰郭少中常成义韩树军路天玙秦伟亮王利清李彬耿若愚孙昊鹰
Owner 中铁物总铁路装备物资有限公司