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On-line oil-filtering apparatus of loaded tap changer

A technology of on-load tap changer and oil filter device, which is applied in the direction of transformers, electrical components, variable inductors, etc., can solve the problems of numerous structural layouts of pipelines, influence on appearance, and many pipe joints, etc., and achieve compact structural layout, Easy to seal and reduce the effect of sealing parts

Active Publication Date: 2011-04-20
SHANGHAI HUAMING POWER EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1. There are many pipe joints, difficult sealing, and leakage is difficult to avoid;
[0007] 2. The large number of pipelines results in a loose structure arrangement, which affects the appearance

Method used

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  • On-line oil-filtering apparatus of loaded tap changer
  • On-line oil-filtering apparatus of loaded tap changer
  • On-line oil-filtering apparatus of loaded tap changer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] See Figure 2. The on-line oil filter device for on-load tap changer of the present invention comprises: a case 2, a motor 21 disposed in the case, an oil pump 22, an impurity removal filter 23, a water removal filter 24, and a pipeline integration board 25.

[0020] Please refer to Figure 3 and Figure 4. The pipeline integration plate 25 includes a plate body 251, a plurality of connecting pipelines 27 buried in appropriate positions in the wall of the plate body, and connecting holes provided on one side of the plate wall to communicate with the respective connecting pipelines. The connecting pipeline 27 can be formed by embedding the pipeline inside the board wall of the integrated board or adopting a method in the board wall formed by molding. This connecting line is shown in dashed lines in FIG. 3 and in cross-sectional view in FIG. 4 . The connecting pipeline 27 includes an oil inlet pipe 271 , a first connecting pipeline 272 , a second connecting pipeline 273 an...

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PUM

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Abstract

The online oil filtering installation includes chassis, and motor, oil pump, filter inside chassis, and connection pipes. Characters are that the installation includes also a pipe integration board. The pipe integration board includes board body, multiple connection pipes built in proper positions inside board wall of the board body, and connection orifices built in one side of board wall linked up to each connection pipe. Being formed in advance, connection pipes are built inside board wall of the integration board, or produced through die forming inside board wall. Inlets and outlets of oilpump, trash extraction filter, and water removal filter are butt jointed to connection orifices related to each connection pipe so as to form an oil-filtering loop. Advantages are: reducing positionsneeded to seal and leakage rate, easy of installation, compact structure etc.

Description

technical field [0001] The invention relates to an online oil filter device for an on-load tap changer. Background technique [0002] The on-line oil filter device of the on-load tap-changer is used to circulate and filter the insulating oil of the on-load tap-changer, which can effectively remove the oil generated by the frequent switching of the transformer on-load tap-changer under the condition of normal operation of the transformer system. A large amount of free carbon and a small amount of metal particles and other impurities absorb water in the oil at the same time, so as to maintain the insulation strength of the switch insulating oil, prolong the service life of the switch, and ensure the safe operation of the transformer. [0003] The existing on-line oil filter device for on-load tap changer is shown in FIG. 1 , which includes a casing and an oil inlet and outlet pipe part 11 , a motor oil pump part 12 , two filters 13 for removing impurities and water, and a pipe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F27/14H01F29/04
Inventor 肖日明
Owner SHANGHAI HUAMING POWER EQUIP CO LTD
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