新型热继电器过载保护研究

doi:10.11985/2017.06.002

电气工程学报 ›› 2017, Vol. 12 ›› Issue (6): 7-13.doi: 10.11985/2017.06.002

新型热继电器过载保护研究

宗鸣,宫赫

沈阳工业大学电气工程学院沈阳 110870

收稿日期:2016-08-04 出版日期:2017-06-25 发布日期:2019-12-20
作者简介:宗鸣男 1957年生,教授,博士生导师,研究方向为特种电机及其控制、智能化电器。|宫赫女 1991年生,硕士,研究方向为电器设计及其关键技术。

Research on Overload Protection of New Type Thermal Relay

Zong Ming,Gong He

Shenyang University of Technology Shenyang 110870 China

Received:2016-08-04 Online:2017-06-25 Published:2019-12-20

摘要/Abstract

摘要：

热继电器过载保护的传统机理是依据双金属片的受热弯曲特性,但由于双金属片材料及特性分散性较大、反时限特性单一、调整误差大、重复性差、易受环境温度影响误动或拒动等原因,很难满足当今的过载保护要求。为了确保交流电动机安全可靠的工作,需要对热继电器进行电子化和智能化的研究。本文提出了一种新型热继电器的控制原理,通过实验验证了该原理的可行性,为电动机的热保护开辟了一条新的途径。

关键词: 新型热继电器, 电动机过载保护, 控制原理, 智能化研究

Abstract:

The overload protection mechanism of traditional thermal relay is based on the heated bending properties of double metal sheets. However, because of the double sheet metal materials and characteristics of scattered large, the inverse time characteristic of single, the large error of adjust, poor reproducibility, and it is easily influenced by the environment temperature misoperation or maloperation. So, it is difficult to meet the requirements of the current overload protection. In order to ensure the safety and reliability of the AC motor, it is necessary to study the electronic and intelligent thermal relay. In this paper, a new type of thermal relay control principle is presented, and the feasibility of the principle is verified by experiments. A new way for the motor thermal protection is opened up.

Key words: New thermal relay, motor overload protection, control theory, intelligent research

中图分类号:

TM582

宗鸣,宫赫. 新型热继电器过载保护研究[J]. 电气工程学报, 2017, 12(6): 7-13.

Zong Ming,Gong He. Research on Overload Protection of New Type Thermal Relay[J]. Journal of Electrical Engineering, 2017, 12(6): 7-13.

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实际电流/A	显示电流/A
3	3.0
6	5.6
9	9.3
12	11.9
15	14.9

新型热继电器过载保护研究

Research on Overload Protection of New Type Thermal Relay

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