Non-exciting reversing change-over voltage regulating strip-shape tap switch

A tap changer and voltage regulation technology, which is applied in the direction of electric switches, transformers, variable transformers, etc., can solve the problems of transformer volume increase, high production cost, large outer diameter, etc., and achieve small effective space, production and use The effect of low cost and small outer diameter
CN1905094AInactive Publication Date: 2007-01-31WUHAN TAIPU TRANSFORMER CHANGER
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
WUHAN TAIPU TRANSFORMER CHANGER
Publication Date
2007-01-31
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention relates to positive and negative voltage regulating bar tap switch without excitation used in power transformer. It includes insulator, up and down bearing, fixed contact, and moving contact. Its feature is that each phase of the corresponding switch is set two rows of fixed and moving contacts. One row of fixed contact is set to connect with principal winding tap and regulating winding tap. Another one is set to connect to output tap and regulating winding tap. The invention has the advantages of simple structure, small size, reasonable binding post leading wire connecting, low cost, etc. It can be used in large middle type transformers and match with their different structures.
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Description

technical field

[0001] The invention relates to a non-excitation positive and negative voltage regulating strip tap switch used in a power transformer. Background technique

[0002] Off-excitation positive and negative voltage regulation tap-changers can carry out positive and negative voltage regulation on the output voltage of power transformers, and are currently widely used. In the Chinese patent CN2433720Y, a non-excitation forward and reverse voltage regulating tap changer is disclosed. Its structure includes: an insulator and upper and lower supports, an insulating shaft is installed between the upper and lower supports, and each phase of the corresponding switch is provided with Two layers of static contacts and moving contacts, each layer of static contacts is arranged along the circumference of the insulator, one of the two layers of static contacts for each phase is provided with a static contact connected to the main coil tap (K) and a connection voltage regulato...

Claims

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