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Choke transformer without maintenance

A choke transformer, maintenance-free technology, applied in the direction of variable inductance/transformer, transformer/inductor coil/winding/connection, plastic/resin/wax insulator, etc., can solve the problem of not meeting the requirements of railway signal use, installation and maintenance Inconvenience, poor transmission characteristics and other problems, to reduce the probability of theft, easy installation and maintenance, to ensure the effect of traction current

Active Publication Date: 2012-09-05
西安安路信铁路技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The choke transformer used in the railway signal track circuit in the prior art has the following disadvantages: poor transmission characteristics, poor reliability, high manufacturing cost, inconvenient installation and maintenance, difficult to prevent theft, and cannot meet the requirements of the current railway signal maintenance system

Method used

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Examples

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Embodiment Construction

[0013] See attached figure 1 . 1 is the maintenance-free choke transformer core, which can be wound with silicon steel strips. 600-800A maintenance-free choke transformer core section is 45*45mm. 1000A maintenance-free choke transformer core section is 60*60mm. The second is the maintenance-free choke transformer box, which is made of die-cast aluminum, and a fastener is installed at the outlet. See attached figure 2 . 3 is the secondary waterproof welding sheath, using 301 austenitic stainless steel pipe. The 4th, plug nail, use No. 20 steel manufactures. 5 is anti-loosening pad. 6 is the plug screw thread. 7 is the anti-theft nut that maintenance-free choke transformer uses. 8 is an inner layer sheath, which adopts polyethylene material or polyvinyl chloride material. 9 is an outer sheath, which adopts a cross-linked polyethylene material. 10 is a steel-cored aluminum stranded wire, and a 600-800 ampere maintenance-free choke transformer adopts a steel-cored alum...

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PUM

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Abstract

A choke transformer of the invention draws directing lines of current coils to weld with plug pins and directly realizes electric connection with steel rails. The invention provides a maintenance-free choke transformer which has excellent transmission property, high reliability, low manufacturing cost, convenient installment and maintenance, easy anti-theft and enables to satisfy the operating requirement of maintaining system of the prevailing railway signals.

Description

technical field [0001] This invention relates to railway track circuits, and more particularly to choke transformers. Background technique [0002] The choke transformer used in the railway signal track circuit in the prior art is composed of a choke transformer iron core, a coil and a connection terminal. In actual use, the choke transformer is installed on the side of the railway, and must be electrically connected through the signal connection line and the rail. Especially in order to ensure the balance of the drawing current, equal impedance signal connecting lines must be used. The choke transformer used in the railway signal track circuit in the prior art has the following disadvantages: poor transmission characteristics, poor reliability, high manufacturing cost, inconvenient installation and maintenance, difficult to prevent theft, and cannot meet the requirements of the current railway signal maintenance system. Contents of the invention [0003] The present inv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F21/00H01F27/29H01F27/34H01F27/32H01B3/30
Inventor 佟元江
Owner 西安安路信铁路技术有限公司
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