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Externally-hung type on-load tap-changer with suspended core

An on-load tapping and plug-in technology, which is applied in variable inductors, variable transformers, electrical component structure associations, etc., can solve the problems of inconvenient installation and maintenance of switches, and achieve the effect of convenient installation and maintenance

Active Publication Date: 2013-06-12
SHANGHAI HUAMING POWER EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the switch body (core) of the plug-in combined on-load tap-changer is directly installed in the switch box, and the switch body cannot be separated from the box as a whole, which brings inconvenience to the installation and maintenance of the switch

Method used

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  • Externally-hung type on-load tap-changer with suspended core
  • Externally-hung type on-load tap-changer with suspended core
  • Externally-hung type on-load tap-changer with suspended core

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] see figure 1 , figure 2 , image 3 , the hanger-mounted on-load tap-changer shown in the figure includes a switch box 100 , a switch body (core) 200 and an electric mechanism 300 .

[0023] Switch box body 100 is made of top case wall 110, front case wall 120, rear case wall 130, left side case wall 140, right side case wall 150, bottom case wall 160 and top case cover 170, front case cover 180. A rectangular top opening 111 is provided on the top box wall 110 to facilitate the lifting in and out of the switch body 200 . The top case cover 170 is mounted on the top opening 111 using fasteners.

[0024] For the convenience of installation, a rectangular front installation opening 121 is provided on the front box wall 120, and the front box cover 180 is installed on the front installation opening 121 by fasteners. In addition, the fr...

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Abstract

The invention discloses a externally-hung type on-load tap-changer with suspended core. The on-load tap-changer comprises a switch box body, a switch body and an electrodynamic mechanism, wherein a top opening is formed on the top box wall of the switch box body, and a top box cover is arranged on the top opening. The externally-hung type on-load tap-changer with suspended core is characterized in that the switch body is detachably arranged in the switch box body and is integrally lifted in or out through the top opening; and the electrodynamic mechanism is connected with the switch body in a driving way. According to the on-load tap-changer, the switch body is in a lifting type structure, and the big enough top opening is formed on the top box wall of the switch box body, so that the switch body is directly lifted into the switch box body or out from the switch box body through the top opening, and the on-load tap-changer is more conveniently mounted and maintained.

Description

Technical field: [0001] The invention relates to the technical field of transformer on-load tap-changers, in particular to a combined on-load tap-changer that can hang cores and hang outside. Background technique: [0002] The on-load tap-changer is to change the output voltage of the transformer by changing the winding taps connected to the transformer and changing the turns ratio of the primary and secondary windings of the transformer when the transformer is on-load (that is, without power failure). The external combined on-load tap-changer has its unique advantages, such as an independent oil chamber separated from the transformer, which can be transported separately from the transformer. [0003] In the prior art, the switch body (core) of the plug-in combined on-load tap-changer is directly installed in the switch box, and the switch body cannot be separated from the box as a whole, which brings inconvenience to the installation and maintenance of the switch. Inventi...

Claims

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Application Information

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IPC IPC(8): H01F29/04H01F27/40H01F41/00
Inventor 肖日明沈旭
Owner SHANGHAI HUAMING POWER EQUIP CO LTD
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