The paper introduces the three dimensions computer aided design system, including its ability and feature, hardware and software, and its application in the low voltage apparatus.
本文介绍三维计算机辅助设计系统，包括该系统的功能与特点、它的软件与硬件以及其在低压电器中的应用。
The noises on low- voltage power networks are classified four types including background noise, periodic noise, burst noise and narrow band noise.
低压配电网电力线噪声可以分为背景噪声、与工频同步的周期性噪声、突发性噪声、窄频带噪声等。
Power supply system: high-voltage power supply and distribution system to low-voltage distributors (including low-voltage distributors).
供电系统：高压供电及至低压配电柜供电的配电系统（包括低压配电柜）。
应用推荐