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Bar-shaped tapping switch for respective voltage regulation in conversion of two voltage classes by single control system

A control system and voltage level technology, applied in the direction of circuits, transformers, inductors, etc., can solve the problems of complicated operation and high manufacturing cost of tap changers, and achieve the effect of brisk operation, convenient purchase, and narrow width

Active Publication Date: 2013-03-20
任宏宇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1.2 The operation is more complicated, that is, both control systems must be controlled;
[0006] 1.3 Increase the material and increase the manufacturing cost of the tap changer

Method used

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  • Bar-shaped tapping switch for respective voltage regulation in conversion of two voltage classes by single control system
  • Bar-shaped tapping switch for respective voltage regulation in conversion of two voltage classes by single control system
  • Bar-shaped tapping switch for respective voltage regulation in conversion of two voltage classes by single control system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Example 1, see figure 2 and 3 It is a three-phase strip tap changer that can respectively perform three-gear voltage regulation across two voltage levels of 10KV and 20KV using a single control system of the present invention. 1 is a strip structure in which a group of moving and fixed contact parts are switched in series and parallel, 1-1 is 4 fixed contact parts for each phase, 1-0 is 1 fixed contact for each phase Components, 1-2 are insulating rods for fixing each fixed contact part according to the three phases of A, B and C, 1-3 and 1-3' are 2 moving contact parts for each phase in parallel, 1-4 is According to the three phases of A, B, and C, the movable contact parts and the dial baffles of the dial 3-5 and 3-6 are fixed respectively, which can slide in parallel on the strip-shaped insulating rod 1-2; 2 and 2' are the same strip structure in which the two sets of moving and fixed contact parts are respectively switched by the middle voltage regulation method,...

Embodiment 2

[0046] Example 2, see Figure 5 The one shown is also a three-phase strip tap changer that adopts a single control system across the two voltage levels of 10KV and 20KV and can respectively perform three-position voltage regulation. It echoes the names of the components in Embodiment 1, and their functions are similar. Adaptation, their serial numbers correspond to each other, so the names, relationships, and serial numbers of each component will not be repeated one by one, but the differences in structure will be introduced in the following two points: (1) Between a set of moving and fixed contact components The bar-shaped structure 1 in which the series and parallel interchanging modes are switched, and the bar-shaped structures 2 and 2' in which the same two sets of moving and fixed contact parts are respectively switched in the middle voltage regulation mode do not use the rights of the present invention The patented technology in claim 6, but adopt the existing technology...

Embodiment 3

[0049] Example 3, see Figure 8 Shown is a three-phase strip tap changer that adopts a single control system across two voltage levels of 10KV and 20KV and can respectively perform five-position voltage regulation, which echoes the names of the components in the previous two embodiments. , their functions are compatible, and their serial numbers are corresponding. Therefore, the names, relationships, and serial numbers of their components will not be repeated one by one, but are all in the appended Figure 8 marked clearly. attached Figure 8 It is a schematic diagram of the structure of embodiment 3, and its structure is all represented by diagram symbols, and their meanings have been listed in Table 1. There are also two points in the following emphatic description of its different structure with the previous two examples of embodiments:

[0050] One, embodiment 3 of the present invention is a three-layer structure strip tap changer, the strip structures 2 and 2' that are...

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Abstract

The invention discloses a non-excitation bar-shaped tapping switch which is applied to a transformer and controlled by a single control system. A task for voltage regulation in conversion of two voltage classes by the transformer is accomplished by a bar-shaped construction of switching of a group of movable and stationary contact parts in a mode of serial and parallel inter-conversion and the same bar-shaped constructions of respective switching of two groups of movable and stationary contact parts in the mode of intermediate voltage regulation, and by different combinations of the bar-shaped constructions. The invention has the advantages that: 1, currently, the bar-shaped tapping switch provided by the invention can be shortest, narrowest, most wonderful in design of the control system, smallest in occupation of a space in an oil tank of the transformer, and lowest in consumption of materials of the transformer; 2, manufacturing cost is reduced so as to be convenient for a customer to purchase the switch; 3, performance is reliable and operation is fast; and 4, non-excitation regulation and single control is carried out, and a hole of a tank cover of the transformer is opened.

Description

technical field [0001] The invention relates to a non-excitation strip tap changer controlled by a single control system for a transformer, especially for the separate voltage regulation task in the transformer switching of two voltage levels. Background technique [0002] In the existing technology, although the national patent ZL200820082683.X pioneeringly solved the separate voltage regulation task in the conversion of the two voltage levels of 10KV and 20KV for the transformer, it is the leader of this product currently used in our country, but it still exists The following two points are insufficient: (such as figure 1 shown) [0003] 1. The structure adopts two control systems, one of which controls the conversion between the two voltage levels of 10KV and 20KV, and the other control system controls the voltage regulation at the 10KV voltage level or at the 20KV voltage level. The specific performance of this point is as follows : [0004] 1.1 Two holes must be open...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F29/04H01H1/56
Inventor 任世灵
Owner 任宏宇