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Dry testing transformer

A technology for testing transformers and transformers, applied in the directions of transformers, fixed transformers, transformer/inductor coils/windings/connections, etc., can solve the problems of large center distance of transformers, increase production costs, increase economic burden, etc., and achieve a short manufacturing cycle. , Good performance and material saving effect

Inactive Publication Date: 2009-10-14
BEIHAI YINHE TECH TRANSFORMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to this design method, each of the primary winding, secondary winding, and tertiary winding needs a mold. In this way, the center distance of the transformer is large, and the volume of the transformer is also increased. This not only increases the production cost, but also wastes resources. increase the financial burden on users

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Embodiment Construction

[0010] See attached figure 1 . attached figure 1 It is a schematic diagram of the winding arrangement of the present invention, from the appended figure 1 It can be seen that the double winding of the transformer is a primary winding 3 and a secondary winding 4 , and an insulating cylinder 2 is arranged between the primary winding 3 and the iron core 1 , and between the secondary winding 4 and the primary winding 3 . See attached figure 2 . attached figure 2 It is the principle connection diagram of the present invention, from the appended figure 2 It is clearly seen that the voltage set by A-X of the primary winding 3 is 10KV, and the voltage set by the secondary winding 4 is a combination of 3KV, 6KV, and 10.5KV respectively; The three independent sub-windings are respectively provided with six taps a1, a2, a3, a4, a5, and a6. The sub-windings a1-a4 are set on the upper part of the entire winding, and its output voltage is 3KV. The sub-windings a5-a6 It is set in t...

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Abstract

The invention belongs to the technical field of electric power equipment, in particular to an improved design of a dry test transformer transmitting three different types of voltage grades. The invention includes an iron core (1), an insulated cylinder (2), a coil (3), and a coil (4). The transformer adopts a double-coil structure, with the first coil being 10kV, and the second coil being the combination of 10.5kV, 6kV, and 3kV. The double coils are the first coil (3) and the second coil (4). An insulated cylinder (2) is equipped between the first coil (3) and the iron core (1), and between the second coil (4) and the first coil (3). The invention has the advantages of simplified coil structure, simple technique, good using performance, convenient voltage adjustment, low production cost, and short producing period.

Description

technical field [0001] The invention belongs to the technical field of power equipment, in particular to the improved design and manufacture of a dry-type test transformer whose output is three different voltage levels. Background technique [0002] The main technical requirements of a dry-type test transformer are as follows: rated capacity: 1600KVA; input voltage: 10kV; output voltage: constant capacity: 10.5KV, 6KV, 3KV (each voltage is used separately); no-load loss: 2750W; Loss: 13100W; short-circuit impedance: >6%; input winding is Y (star) connection, output winding is d (delta) connection; voltage regulation method: non-excitation voltage regulation; insulation heat resistance grade; F grade; cooling method : AN / AF. The traditional design method of this dry-type test transformer is: design according to the ordinary three-winding transformer structure, the primary winding is 10kV, which is arranged on the iron core side; the secondary winding is 10.5KV, and is arr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F27/28H01F30/04
Inventor 罗井新
Owner BEIHAI YINHE TECH TRANSFORMER
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