摘要
JDB—120/225型综合保护器经多年使用尚存在一些问题。本文提出改进的设计方案,包括不改变外形尺寸、保留原来优点、改用一片四运放集成电路取代多品种集成电路和其它元件、对元件合理选型并留足裕量。最后介绍了改进后综合保护器的主要技术特征和工作原理。
Type JDB-125/225 comprehensive protector had been at work for many years with but a few defects remained.Paper offers an improved design plan in which the overall dimension of the protector as well as other merits are still unchanged. One chip of 4-in-1 operational amplifier is used in replacement of various chips and other parts. Plan also makes full allowance in reasonable choice of parts. The main technical feature and principle of work of the improved protector are eventually introduced.
出处
《煤矿机电》
北大核心
1989年第4期27-32,共6页
Colliery Mechanical & Electrical Technology
