Signal output method for fault of oil-immersed transformer

A technology for oil-immersed transformers and transformer failures, applied in instruments, alarms, etc., to solve problems such as system accidents, user power outages, equipment damage or damage, etc.

Active Publication Date: 2015-04-01
上海电器陶瓷厂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, the failure of the transformer during operation will cause damage or damage to the equipment itsel

Method used

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  • Signal output method for fault of oil-immersed transformer
  • Signal output method for fault of oil-immersed transformer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] see figure 1 A fuse is inserted into the oil-immersed transformer, and the fuse includes a cylindrical base 20 with one-way opening and a fuse carrier and a fuse that are sequentially arranged in the base 20 from the opening direction of the base 20; the fuse carrier includes a handle 10, A rear coupler connected to the front end of the handle 10 and fixed on the rear end of the fuse and a front coupler fixed on the front end of the fuse. The handle 10 includes a handle 101 and a connecting rod 102. The handle 102 An axial through hole is provided in the center of the handle 10, and a limit screw 30 is arranged in the axial through hole. The fuse also includes a signal output device installed in the rear port of the axial through hole of the handle 10. The signal output device includes a switch cover 11 , a micro switch 12 and a connection terminal 13 . The switch cover 11 comprises a cover plate, an outer ring connected to the front end face of the cover plate and a s...

Embodiment 2

[0026] A sealing rubber ring 31 is sleeved on the limit screw 30. On the basis of the signal output device in the first embodiment, a quick connector 16 is added, and the micro switch 12 and the terminal 13 are connected through the quick connector 16. , the quick connector 16 is composed of a plug 161 and a socket 162. The plug 161 is connected to the three contacts of the micro switch 12 through a three-core sheathed wire 14 passing through the cable hole on the switch cover 11, and the three-core The part of the sheathed wire 14 located in the switch slot 11 is fixed and sealed in the switch slot by epoxy glue, and the socket 162 is connected to the three contacts of the terminal 13 through another three-core sheathed wire 14 .

[0027] A signal output method for an oil-immersed transformer failure. When an oil-immersed transformer fails, the internal temperature of the transformer rises, causing the internal temperature of the fuse to rise, and the pressure inside the fuse ...

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PUM

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Abstract

The invention discloses a signal output method for a fault of an oil-immersed transformer. A signal output device of a fuse mounted in the oil-immersed transformer can provide signal output after the oil-immersed transformer has the fault to avoided open-phase operation of a circuit and reduce a safety risk.

Description

technical field [0001] The invention belongs to the technical field of electric equipment fault early warning, and in particular relates to a signal output method for an oil-immersed transformer fault. Background technique [0002] In the power system, the power transformer is responsible for the voltage change between the grids and the function of electric energy conversion, and is one of the most important equipment in the power system. On the one hand, the failure of the transformer during operation will cause damage or damage to the equipment itself, causing power outages to the users; on the other hand, it may also cause system accidents, which are even more harmful. [0003] Oil-immersed transformer is the key equipment in the power system, and its safe and stable operation is of great significance. At present, oil-immersed transformers are mainly protected by oil-immersed fuses, and there are also patents published for signal output devices suitable for oil-immersed ...

Claims

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Application Information

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IPC IPC(8): G08B21/18
CPCG08B21/185
Inventor 王碧云钱勇杰杨立虹何灵均
Owner 上海电器陶瓷厂有限公司
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