小电流接地选线装置中模数变换板的配置

本文主要介绍小电流接地选线装置中,高性能多路A/D模数变换板的配置、设计及性能技术指标。该A/D变换板是小电流接地微机选线装置中的重要部件,由于设计时着重考虑了其通用性和抗干扰性,所以它不仅适用于环境较恶劣的电力系统,也可用于各种性能较高、速度较快的微机多路采集系统。

CONFIGURATION OF A/D CONVERTER IN THE MICROCOMPUTER-BASED DEVICE SELECTING THE LINE WITH SMALL GROUND CURKENT

This paper mainly introduces the configuration, design, and qualification of the A/D converter in the microcomputer-based device selecting the line with small ground current. The A/D converter is an important part of the device. Because its general and antijamming ability are especially considered in the design, the A/D converter can be adapted not only to power systems under bad environment conditions but also to a variety of multi-channel acquisition microcompnter systems with high quality and high speed.