Most measurement, control, and data I/ O signals are Measurement Category I and must not be directly connected to mains voltage or to voltage sources with high transient over-voltages.

The analysis and treatment of trouble of high-voltage circuit system are carried out through instance, and the effect of mains voltage fluctuation on equipment is also inquired initially.

对高压电路系统故障的实例进行了故障原因分析和处理，并对电源电压波动对仪器的影响进行了初步的探讨。

Every repeater unit is supplied with a mains power supply unit with a1.9 metre cable.

每个中继器都配备了一主电源的1.9米电缆供电单元。

Selection and mounting of power cable and termination used in 10 kV ring mains unit

10kV环网配电柜中电缆及电缆终端的选取和安装的若干问题

Discussions on Replacement of Fuse Used in 10 kV Ring Mains Unit

10kV环网负荷开关中熔断器更换问题探讨

The paper presents a design method of EMI mains filter and some points needing an attention in application.

介绍EMI电源滤波器的设计方法以及在使用过程中应注意的问题。

High Power Factors of The Mains and Soft-switch Technology

开关电源的高功率因数和软开关技术

New water mains switch effect, they are practical, at the end of you!

一款水管开关效果，挺实用的，大家来看看吧！

The article introduces the composition lining of the mains frequency coreless induction furnace with short coils.

本文介绍短线圈工频无心感应保温炉采用的复合炉衬。

Numerical Simulation of Electromagnetic and Thermal Fields in the Mains Frequency Induction Furnace for Melting Zinc

熔锌工频有芯感应炉电磁场和温度场的数值仿真研究

Discussion on Saving Energy Measures for Mains Frequency Coreless Induction Furnace used for Zinc Alloy Production

锌合金熔炼用工频无心感应炉节能措施探讨

To Remove Influence of the Harmonic on Mains Frequency Channel Melting Zinc Induction Furnace

消除谐波对工频有心熔锌感应炉的影响

AC Voltage Regulation Device Using Thyristors for Cored Mains Frequency Induction Furnace

工频有芯感应电炉可控硅交流调压装置

The Application of Cored Mains Frequency Induction Furnace to Production of Zinc Alloy

锌合金生产中工频无芯感应电炉的应用

Energy Balance Analysis on Mains Frequency Melting Furnace

工频熔炼炉能量平衡分析

Mains failure and emergency generator

电源故障应急发电机

An investigation on carrier channel characteristics of AC lighting mains

交流照明线载波通道特性的研究

The set was plugged into the electric light mains, and the feeder side of the transmitter was connected to the telephone lines in our bedroom.

发射机的插头插入了电灯线插口，它的另一头和我们卧室里的电话线相连。

The Application of Industrial Ethernet and the Spot Electric Mains Technique to the Strap Concentrates Control System

工业以太网与现场总线技术在皮带集控系统中的应用

Test Method Based on the PC Sound Card to Test the Frequency of Electric Mains Precisely

基于PC声卡的电网电源频率精密测试方法

The article analyses the problem that Parkins auto Diesel is not able to auto-start to supply power at Mains failure, and puts forward the reform solution to ATS control panel circuit.

通过对帕金斯自动柴油发电机在市电缺相故障时不能自启动供电的问题分析，提出了对ATS控制屏电路进行改造的方案。