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A three-phase integrated power transformer low-frequency heating power supply system and its operating method

A power transformer and low-frequency heating technology, applied in the field of transformers, can solve the problems of line damage, power system collapse, electric spark power system, etc., to achieve the effect of easy installation and maintenance, reduction of applied voltage, and reduction of power

Active Publication Date: 2021-12-28
STATE GRID SHAANXI ELECTRIC POWER RES INST +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the existing power system is used, it must be ensured that the power system is in a dry environment to ensure the normal operation of the power system; most of the existing power systems are installed in a closed way, resulting in high temperature in the power system, power supply The connecting lines in the system are easy to age and cause line damage. In severe cases, it may cause the power system to collapse or generate electric sparks to damage the power system; in addition, the power system wiring is disordered and inconvenient to maintain.

Method used

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  • A three-phase integrated power transformer low-frequency heating power supply system and its operating method
  • A three-phase integrated power transformer low-frequency heating power supply system and its operating method
  • A three-phase integrated power transformer low-frequency heating power supply system and its operating method

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Embodiment Construction

[0067] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only some of the embodiments of the present invention, not all of them, based on The embodiments of the present invention and all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0068] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "top / bottom" etc. are based on the orientations shown in the drawings Or positional relationship is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must h...

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Abstract

The invention discloses a three-phase integrated power transformer low-frequency heating power supply system and its operating method. The system includes: an incoming line circuit breaker, which is used to realize input and cut-off operations of the input power supply; an incoming line contactor and an outgoing line contactor, It is used to realize the remote switching operation of the power supply of the whole machine; the phase-shifting transformer is used to realize the input power boost and the multi-pulse rectification input power formation; the low-frequency inverter includes multiple sets of power units for Realize three-phase low-frequency output; automatic power-off system is used to realize automatic power-off when the temperature is too high or the circuit connection line fails, and protect the entire low-frequency heating power system; control system is used to realize the control of the incoming circuit breaker, On-off control of incoming line contactor, outgoing line contactor, phase-shifting transformer and low-frequency inverter. The invention can greatly reduce the power consumption of the heating capacity of the power supply, and can improve the heat dissipation efficiency.

Description

technical field [0001] The invention belongs to the technical field of transformers, and in particular relates to a three-phase integrated power transformer low-frequency heating power supply system and an operating method thereof. Background technique [0002] The power supply system of the transformer is composed of rectification equipment, DC power distribution equipment, battery pack, DC converter, rack power supply equipment, etc. and related power distribution lines. The power supply system provides various high and low frequency AC and DC power supplies for various motors to maintain the smooth operation of the motor system. [0003] When the existing power system is used, it must be ensured that the power system is in a dry environment to ensure the normal operation of the power system; most of the existing power systems are installed in a closed way, resulting in high temperature in the power system, power supply The connecting lines in the system are prone to agin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M7/00H05K7/20H01F27/00
CPCH02M7/003H05K7/20909H01F27/008
Inventor 刘强杨过王晓涛吕亮李鹏程李旭盛志平黄竣峰黄国强李江涛王磊王辰曦
Owner STATE GRID SHAANXI ELECTRIC POWER RES INST
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