摘要
介绍了接地在自动化仪表中的作用及接地的方法。分析了单独供24 V电的现场回路,指出需对其负极接地以抑制干扰,使电位稳定,便于发现隐患。
The effect and grounding method of automation instrumentation were introduced.The separate 24V power supply of field circuit was analysed, and the points to the need for its negative ground to interference suppression, stable voltage and preventing risks.
出处
《中国氯碱》
CAS
2012年第1期32-34,共3页
China Chlor-Alkali
关键词
自动化仪表
24V电源
接地
短路
automation instrumentation
24V power
grounding
short circuit
