摘要
根据直流电磁铁的工作原理和正温度系数热敏电阻 ( PTCR)的电流 -时间特性 ,研究发现低电阻率、小升阻比的 PTCR用于直流电磁铁的启动 。
This paper discusses the application of PTCR for lower resistivity and small R max / R 20 ℃ in the starting of DC electromagnet, according to the working principle of DC electromagnet and the current time relation of PTCR.We discover that the effect in energy economy is obvious if the PTCR of lower resistivity and smaill R max / R 20 ℃ are applied in the stating of DC electromagnet.
出处
《武汉理工大学学报》
CAS
CSCD
2003年第8期85-87,共3页
Journal of Wuhan University of Technology
关键词
直流电磁铁
正温度系数热敏电阻(PTCR)
节能
DC electromagnet
positive temperature coefficient of resistance (PTCR)
energy economy
