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Unified variable ratio wide metering combination transformer

A technology of combining transformers and transformers, applied in the direction of transformers, inductors, transformer/inductor components, etc., can solve problems such as troublesome line connection, and achieve the effects of convenient connection, compact structure and accurate measurement

Active Publication Date: 2017-10-20
山东亿玛信诺电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Of course, based on the above analysis, it can also be seen that in the prior art, the corresponding combined transformer will definitely not achieve the desired effect, and the existing combined transformer must be troublesome in line connection.

Method used

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  • Unified variable ratio wide metering combination transformer
  • Unified variable ratio wide metering combination transformer
  • Unified variable ratio wide metering combination transformer

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Embodiment Construction

[0032] The technical content of the present utility model is described below through specific specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present utility model from the contents disclosed in this specification. The utility model can also be implemented or applied through other different specific embodiments, and various modifications and changes can be made to the details in this specification based on different viewpoints and applications without violating the spirit of the utility model.

[0033] Below in conjunction with accompanying drawing, the utility model is described in further detail.

[0034] In addition, it should be noted that, unless otherwise specified or pointed out, the terms “first”, “second”, “third”, “A phase”, “B phase”, “C phase” and other descriptions in the specification only The use to distinguish each component, element, and step in the specification is only for the convenience of descript...

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Abstract

The invention discloses a unified ratio type broad width measurement combined transformer. A post stage of a small-ratio current transformer of an in-phase bus is connected with a current reduced type current converter in parallel; mechanical connection and electrical isolation are realized between a high-ratio current transformer and the small-ratio current transformer, a voltage transformer and a current converter through resins casted therebetween; an output end of the current converter is connected with an output end of the high-ratio current transformer in parallel to form one end externally connected to an electricity metering device; a circuit after parallel connection is provided with a CT switching detection current transformer in a penetrating manner; the output of the CT switching detection current transformer is connected to a control device through a signal processing and amplifying unit; and the current converter is connected with the other output end of the high-ratio current transformer in series and then connected with a controllable switch gear in parallel, wherein the controllable switch gear is connected with the control device. The unified ratio type broad width measurement combined transformer provided by the invention can finish ratio conversion within an integrally casted transformer, the connection is convenient, a back side of the current transformer is connected with an overvoltage suppression unit, and the use is reliable.

Description

technical field [0001] The utility model relates to a unified variable-ratio wide-width metering combination transformer, which belongs to the technical field of electric power metering. Background technique [0002] Before new equipment is put into use, it is necessary to test the equipment in order to verify the performance of the equipment, especially the safety performance and working performance of the equipment must be guaranteed. In order to ensure the safe and economical operation of the power system, it is necessary to monitor and measure the operation of the power equipment. However, general measurement and protection devices cannot be directly connected to the primary high-voltage equipment, but need to convert the large current of the primary system into a small current in proportion to supply the measuring instruments and protection devices. [0003] In every link of the power system, including power generation, power transformation, power transmission, power d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F38/36H01F38/32H01F27/40
CPCH01F27/402H01F38/32H01F38/36
Inventor 王丕杰傅杰杨占孟张京勇梁学山张慧芹王剑毛桂芳杨培光王琛皓杨雨晴李世明
Owner 山东亿玛信诺电气有限公司
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