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A ground-type automatic phase separation device

An automatic over-phase, ground-based technology, applied in the direction of transportation and packaging, power lines, vehicle components, etc., can solve the problems of adding arc extinguishing structures and the effect is not obvious, and achieve the effect of reducing arc and prolonging life

Active Publication Date: 2016-08-31
HARBIN PATEERN SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Foreign countries mainly solve it from the hardware structure of the electric segment, such as adding an arc extinguishing structure, reducing the current before the train enters the neutral section, disconnecting the current, etc., the effect is not obvious;

Method used

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  • A ground-type automatic phase separation device
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Embodiment Construction

[0016] The main circuit diagram of a ground-type automatic over-current phase-splitting device using switching transformer TK technology is as follows figure 1 Shown: a ground-type automatic phase splitting device, including an isolating switch G2, a switching transformer TK, a thyristor SCR, a programmable logic controller PLC, and a control switch K2; it also includes a spare isolating switch G1; one end of the spare isolating switch G1 Connect the main circuit of the locomotive, and the other end is connected to the power supply; the upper end of the primary winding of the switching transformer TK is connected to an isolating switch G2, and the other end of G2 is connected to the power supply; the lower end of the primary winding of the switching transformer is connected to the control switch K2, and the other end of K2 is connected to Between the spare isolating switch G1 and the main circuit of the locomotive; two thyristors SCR connected in positive and negative parallel ...

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Abstract

The invention relates to novel ground auto-passing neutral section equipment for an electric locomotive, and belongs to the technical field of power electronics. The device can be used for automatic control and protection when the electric locomotive passes a neutral section, overvoltage and inrush current generated in passing the neutral section traditionally are eliminated by means of the switch transformer technology, damage to the locomotive electrical equipment and overhead lines are decreased, the service life is prolonged, and the device can better fulfill the important function on safe and stable operation particularly in the condition of being applied to the high speed EMU.

Description

technical field [0001] The invention relates to a ground-type automatic phase separation device, which belongs to the technical field of electric locomotives and power electronics. The service life of electrical equipment and catenary, especially in the case of high-speed EMUs, shows the important role of this device in safe and stable operation. Background technique [0002] The electric locomotive adopts single-phase power supply. In order to balance the three-phase power system, the traction power supply system adopts the method of segmental commutation, which is called electric split phase or simply phase split. Every 20 to 30 kilometers, at the exit of the substation Or the electric phase splitting device installed in the partition between two substations. When the train speed is 200 km / h, it has to pass through the electric separation-phase non-electric zone every 6 to 10 minutes, and the frequency is very high. [0003] The electric locomotive frequently passes thro...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60M3/04
Inventor 潘家忠李天昊
Owner HARBIN PATEERN SCI & TECH