Voltage transformer

A technology of voltage transformers and shells, which is applied in the direction of inductors, transformers, transformer/inductor shells, etc., which can solve problems such as transformer failures, voltage transformer equipment failures, and inconsistent operation modes of substations, so as to avoid failures and avoid In case of failure, it is not easy to be broken down and turned on

Inactive Publication Date: 2018-06-19
国网河南省电力公司滑县供电公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] (2) Transformer failure
[0012] (3) The voltage transformer equipment fails
[0013] (4) The time problem of switching on and off the busbar transformer
Therefore, the inconsistency in the operation mode of the substation leads to various problems in the switching of the transformer on the bus voltage and the withdrawal of the line

Method used

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  • Voltage transformer

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Embodiment Construction

[0027] as attached figure 1 As shown, a voltage transformer includes a housing 1, the housing 1 is a plastic housing, the interior is hollow, the two shell walls are filled with liquid nitrogen, and the housing 1 is filled with SF6. Two E-type magnetic core post 2. Two E-shaped magnetic core columns 2 are arranged opposite to each other to form an EE-shaped magnetic core column. The E-shaped magnetic core column is made of Mn-Zn ferrite, and each E-shaped magnetic core column 2 is hollow and filled with liquid nitrogen inside. The middle magnetic column 7 of the magnetic core column is provided with a primary winding 3 and a secondary winding 4, the secondary winding 4 is connected to the support tube insulator 5, and the lead wire shielding tube 6 is arranged inside the support tube insulator 5, and the lead wire shielding tube 6 is in phase with the secondary winding 4 connect.

[0028] What has been described above is only the preferred embodiment of the present invention...

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Abstract

Disclosed is a voltage transformer. The voltage transformer comprises a shell 1. The shell 1 is inflated with SF6, two E-type magnetic core columns 2 are arranged inside the shell, the two E-type magnetic core columns 2 are arranged oppositely to form an EE-type magnetic core column; each E-type magnetic core column 2 is hollowed and is filled with liquid nitrogen; a primary winding 3 and a secondary winding 4 are arranged on a middle magnetic core 7 of the EE-type magnetic core column, and the secondary winding 4 is connected with a supporting pipe insulator 5. According to the voltage transformer, the magnetic cores are hollow and filled with liquid nitrogen, when a break line fault appears, the current becomes larger, heat energy is rapidly absorbed, the phenomenon that the temperatureof the voltage transformer is excessively increased is relieved, the voltage transformer is prevented from breaking down, and therefore a zinc oxide lightning arrester is not likely to break down or be communicated; accordingly, failure of the lightning arrester is avoided, and possibly-caused severe results are effectively restrained.

Description

technical field [0001] The invention relates to a voltage transformer. Background technique [0002] Substation, as the name implies, refers to a place where voltage is changed. There are two ways to realize the substation. One is to transmit the electric energy sent by the power plant to a place far away from the power plant through the transmission equipment. This process increases the voltage delivered by the power plant to a high voltage. The second is to change the received high voltage into a low voltage that meets the needs of users according to the electricity demand of nearby users. In order to better discover the problems existing in the operation of the 110KV substation and implement solutions, we must first understand the operation mechanism of the substation, so the operation mechanism of the 110KV substation is briefly summarized as follows: [0003] Composition: The substation is the assembly point of power transmission and transformation in the power system...

Claims

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Application Information

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IPC IPC(8): H01F27/02H01F27/10H01F27/24H01F27/32H01F38/26
CPCH01F27/105H01F27/025H01F27/24H01F27/324H01F38/26
Inventor 靳卫国李红利彭鑫王峰唐东舒戴伟唐博魏军申长喜王政帅史晓立
Owner 国网河南省电力公司滑县供电公司
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