P0973DA传感器使用方法教程

P0973DA传感器使用方法教程在满足安全要求的同时，较大限度地减少
信号电流通过公共阻抗，配电中性点之间的单个连接
接地极子系统是必要的。这种单一连接消除了
哪些循环（功率）电流可以在信号元素之间产生干扰
参考网络。与接地极子系统的连接应从较好个
服务断开。应注意确保信号参考、故障保护和
防雷子系统在单独的接地棒处与接地极子系统连接
位置。典型配置。在一件设备内，信号参考子系统可能是一张纸
指用作该设备中某些或所有电路的信号参考平面的金属。
在设备之间，设备分布在整个设施中，信号接地网络通常由许多互连的电线、棒或服务于等电位平面的网格组成。无论是服务于设备内的电路集合还是服务于设施内的多个设备，信号参考子系统都将是浮地、单点接地、多点接地或等电位面。在上述信号参考子系统中，等电位面是通信电子设施的较佳接地。P0973DA传感器使用方法教程

P0973DA传感器使用方法教程To meet the safety requirements while minimizing the effects of power currents flowing with
signal currents through a common impedance, a single connection between the power distribution neutral
and the earth electrode subsystem is necessary. This single connection eliminates conductive loops in
which circulating (power) currents can flow to produce interference between elements of the signal
reference network. This connection to the earth electrode subsystem should be made from the first
service disconnect. Care should be taken to ensure that the signal reference, fault protection, and
lightning protection subsystems are bonded to the earth electrode subsystem at separate ground rod
locations. Typical configuration. Within a piece of equipment the signal reference subsystem may be a sheet
of metal which serves as a signal reference plane for some or all of the circuits in that equipment.
Between equipment, where units are distributed throughout the facility, the signal ground network usuallyconsists of a number of interconnected wires, bars, or a grid that serves an equipotential plane. Whether serving a collection of circuits within equipment or serving several pieces of equipment within a facility, the signal reference subsystem will be a floating ground, a single-point ground, a multiple-point ground, or an equipotential plane. Of the aforementioned signal reference subsystems, the equipotential plane is the optimum ground for communications-electronics facilities.P0973DA传感器使用方法教程

来源：瑞昌明盛自动化设备有限公司