A lightning protection transformer

A transformer and anti-lightning technology, which is applied in the field of transformers, can solve the problems of low transfer coefficient of lightning protection transformers affecting lightning protection effects, etc., and achieve the effects of improving lightning protection effects, strong attenuation, and improving transfer coefficients

Active Publication Date: 2020-06-26
CRSC RESEARCH & DESIGN INSTITUTE GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the purpose of the present invention is to overcome the deficiencies of the prior art, and provide a lightning protection transformer, which is suitable for the transmission channel of the high-speed rail ZPW-2000A track circuit, so as to solve the problems caused by the structure of the lightning protection transformer itself in the prior art. The problem that the low transfer coefficient of the lightning transformer affects the lightning protection effect

Method used

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Embodiment 1

[0026] see figure 1 , a lightning protection transformer provided in this embodiment is installed on the signal transmission channel of the indoor equipment and outdoor equipment of the railway track, including: a primary coil 1, a secondary coil 2 and an ED core 3, wherein,

[0027] Both the primary coil 1 and the secondary coil 2 are wound in the center of the ED-type iron core 3; the primary coil 1 is wound with an inner anti-lightning induction shielding layer for one turn before winding, and then wound A circle of outer anti-lightning induction shielding layer; the inner anti-lightning induction shielding layer and the outer anti-lightning induction shielding layer are electrically connected to the ED type iron core 3 and grounded.

[0028] It can be seen from the above technical solution that the lightning protection transformer provided by the present invention adopts an ED-type iron core, the primary coil and the secondary coil are both wound in the center of the ED-ty...

Embodiment 2

[0030] A lightning protection transformer provided in this embodiment is installed on the signal transmission channel of indoor equipment and outdoor equipment on a railway track, and includes: a primary coil 1, a secondary coil 2 and an ED core 3, wherein,

[0031] Both the primary coil 1 and the secondary coil 2 are wound in the center of the ED-type iron core 3; the primary coil 1 is wound with an inner anti-lightning induction shielding layer for one turn before winding, and then wound A circle of outer anti-lightning induction shielding layer; the inner anti-lightning induction shielding layer and the outer anti-lightning induction shielding layer are electrically connected to the ED type iron core 3 and grounded.

[0032] Preferably, a skeleton is arranged in the center of the ED-type iron core, and the secondary coil and the primary coil are wound on the skeleton successively; For the lightning induction shielding layer, after the winding is completed, an outer anti-lig...

Embodiment 3

[0037] A lightning protection transformer provided in this embodiment is installed on the signal transmission channel of indoor equipment and outdoor equipment on a railway track, and includes: a primary coil 1, a secondary coil 2 and an ED core 3, wherein,

[0038] Both the primary coil 1 and the secondary coil 2 are wound in the center of the ED-type iron core 3; the primary coil 1 is wound with an inner anti-lightning induction shielding layer for one turn before winding, and then wound for one turn after the winding is completed. The outer anti-lightning induction shielding layer; the inner anti-lightning induction shielding layer and the outer anti-lightning induction shielding layer are electrically connected to the ED type iron core 3 and grounded.

[0039] Preferably, a skeleton is arranged in the center of the ED-type iron core, and the secondary coil and the primary coil are wound on the skeleton successively; For the lightning induction shielding layer, after the wi...

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Abstract

The invention relates to a lightning-protection transformer installed on a signal transmission channel of indoor equipment and outdoor equipment of a railway track. The lightning-protection transformer comprises a primary coil, a secondary coil and an ED-type iron core, wherein the primary coil and the secondary coil are both wound in the center of the ED-type iron core; a circle of inner lightning-protection induction shielding layer is wound before the primary coil is wound, and a circle of outer lightning-protection induction shielding layer is wound after the primary coil is wound; the inner lightning-protection induction shielding layer and the outer lightning-protection induction shielding layer are electrically connected to the ED-type iron core and connected to the ground. By meansof the technical scheme, the problem can be effectively solved that in the prior art, the lightning protection effect is influenced by low transfer coefficients of lightning-protection transformers due to the structures of the lightning-protection transformers.

Description

technical field [0001] The invention relates to the technical field of transformers, in particular to a lightning protection transformer. Background technique [0002] Track transformers for railway signals are used to send or receive control signals to or from rails. At present, track transformers for railway signals are composed of ordinary coils and iron cores. When the coils are manufactured, the primary coils and secondary coils are wound on the same coil frame, and no anti-lightning devices are added to the coils. Because the railway power supply system and steel rails in lightning-prone areas are susceptible to lightning interference, the track transformer and other equipment will be damaged, seriously affecting the safety of railway traffic. [0003] The digital signal cable communication channel between the outdoor equipment and the indoor equipment of the high-speed rail ZPW-2000A track circuit is one of the main ways for lightning discharge. Large-scale damage t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F27/30H01F27/28H01F27/36
CPCB61L1/20H01F27/2823H01F27/288H01F27/306H01F27/36
Inventor 白英杰阳晋张璐韩聪颖
Owner CRSC RESEARCH & DESIGN INSTITUTE GROUP CO LTD
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