An installation method of an optical fiber temperature measuring probe inside a pre-installed conduit-type transformer

An installation method and optical fiber temperature measurement technology, applied in transformer/inductor parts, transformer/inductor coil/winding/connection, electrical component structure association, etc., can solve the difficulty of temperature measurement optical fiber damage, collision, and replacement of optical fiber probes It can save maintenance costs, save installation time, and avoid poor contact.

Active Publication Date: 2017-05-17
STATE GRID HEBEI ELECTRIC POWER RES INST +2
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0005] (1) There are serious hidden dangers, because in the process of overall suiting, body assembly, drying treatment, and final assembly, it is very likely to cause damage to the temperature measuring optical fiber, such as: pulling, extrusion, collision, etc.
[0006] (2) After a certain fiber optic probe fails, it is very difficult to replace the fiber optic probe

Method used

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  • An installation method of an optical fiber temperature measuring probe inside a pre-installed conduit-type transformer

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Embodiment Construction

[0028] as attached figure 1 As shown, the present invention relates to a method for installing an optical fiber temperature measuring probe inside a preset conduit type transformer, which specifically includes the following steps:

[0029] (1) Select the insulating conduit 7 equal to the number of optical fiber temperature measuring probes, and calculate the length of the insulating conduit 7 according to the design drawings: the insulating conduit 7 preset in the low-voltage winding 5 and the insulating conduit preset in the medium-voltage winding 4 The length difference of 7 is the sum of the thickness of the paper tube 2 and the thickness of the medium-voltage winding 4; the length difference between the insulating conduit 7 preset in the medium-voltage winding 4 and the insulating conduit 7 preset in the high-voltage winding 3 is the and the thickness of the high-voltage winding 3, and then make a mark for distinction on each insulating conduit 7;

[0030] (2) Carry out w...

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Abstract

The invention relates to an installation method for optical fiber temperature measurement probes in a preset conduit transformer. The method comprises the following steps: selecting insulating conduits which are equal to the optical fiber temperature measurement probes in number, and marking each insulating conduit; carrying out winding of transformer windings, inserting a wedge insulating cushion block into a hotspot position, and laying and fixing the insulating conduits along a winding stay; laying the insulating conduits upwards along a fiber container, and fixing the insulating conduits on a wire clamp by a heat shrinkable tape; marking internal extension optical fibers in the optical fiber temperature measurement probes for distinguishing after drying the body of the transformer, and then inserting the optical fiber temperature measurement probes from the corresponding insulating conduits on the wire clamp. According to the installation method, installation of the optical fiber temperature measurement probes is carried out in a preset conduit manner, so that the post-installation time can be saved; the installation method is convenient and practical; and the work efficiency is greatly improved.

Description

technical field [0001] The invention relates to the technical field of electric power detection, in particular to a method for installing an optical fiber temperature measuring probe inside a preset conduit type transformer. Background technique [0002] For oil-immersed power transformers, when the load or ambient temperature is too high, or when the cooling oil channel inside the winding is blocked, the winding temperature of the transformer will rise abnormally. At this time, the transformer will be exposed to a certain degree of danger. The highest temperature in a certain part of the transformer winding is called the hot spot temperature of the transformer. Once the hot spot temperature exceeds the limit temperature of the transformer insulation, it will cause insulation aging or insulation damage, shorten the life of the transformer, and even damage the body. Therefore, detecting and controlling the hot spot temperature of the transformer is the decisive factor to ens...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F27/40H01F27/30
CPCH01F27/306H01F27/402H01F2027/406
Inventor 高树国高骏范辉潘瑾陈志勇贾伯岩刘宏亮赵军饶群王艳李士林
Owner STATE GRID HEBEI ELECTRIC POWER RES INST
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