Lau said the HKSAR government will carefully consider the question of analogue switch-off and will make proper arrangements to ensure a smooth migration from analogue to digital. 刘吴蕙兰指出,政府将考虑关闭模拟电视广播,并将作出恰当安排以确保从模拟信号顺利过渡到数字信号。
The reason for the complaint is that the switch-off protection of the navigation unit is triggered too soon. 投诉的原因在于导航单元的关闭保护触发得过快。
Analysis on false switch-in and failure switch-off of 10 kV generator's outgoing switch and treatment measures 10kV发电机出口开关误合闸及拒绝分闸故障分析与处理
Install software with modified switch-off protection. 安装具有修改的关闭保护功能的软件。
Induction motor stator winding fault diagnosis based on zero sequence voltage after switch-off 基于断电后残余电压的感应电机定子故障诊断
In the realization of functions, the guide blade adopts shutdown valve that integrates the functions of switch-on and switch-off valve and emergency switch-off valve into one, without emergency valve. 在功能实现上,导叶采用关断阀,该阀集开停机阀和紧急停机阀功能于一体,不装事故配压阀。
We introduce in detail the circuit current and voltage when the relay is switch-on and switch-off, and make the software in DOS and WINDOWS. 详细介绍了电机作为负载时继电器闭合与分断时触点两端电压与回路电流情况,并研究了在电机正常和堵转情况下的工作时序。
Flexible passive power filter design for eliminating harmonics is presented, which is based on passive power filter and converse-paralleled thyristor as filter switch-on or switch-off. 为了很好地消除电力系统中的谐波,提出了一种动态电力滤波器设计方案,它是在无源电力滤波器基础上,通过反并联晶闸管来控制滤波支路的投切。
As a result of experimental studies, a calibration relationship is established between the specimen temperature, the stabilized furnace temperature and the pre-set temperature for automatic switch-off of the heating furnace, which may facilitate the determination of the pre-set automatic switch-off temperature. 通过实验研究建立了试件温度、稳定炉温和加温炉加热自动断电设定温度之间的标定关系。
Relationship between the main parameters and commutation time is analyzed, based on which, switch-off process after the commutation is described and IGCT commutation mechanism is illustrated. 分析了主要参量与换流时间的关系,在此基础上,描述换流后的关断过程,阐明IGCT的换流机理。
The principle of eliminating switch-on resistance, reducing switch-off leakage current and enhancing switchover speed is analyzed. 具体分析了开关电路消除导通电阻、减小关断漏电流、提高开关速度的原理。
The fundamental component of zero sequence voltage after switch-off was selected as the stator fault feature, which could effectively avoid the influence of the supply unbalance and load fluctuation and directly reflect the asymmetry in the stator. 选取断电后零序电压的基波分量作为定子故障特征,可有效避免电源不平衡和负荷波动的影响,直接反映电机定子的不对称度。
By contrasting the AC holding and DC holding way, the operating mode with lower DC holding voltage was proposed. It realized saving energy, zero noise and switch-off controlled. 通过对比交流保持和直流保持的特点,提出直流低压保持的运行方式,实现了交流接触器节能、无噪声以及分闸可控。
This paper analysis the principle of the main circuit based on the on-off of two switches, circuit switch-off of, and describe the control theory based on the average current control method. 论文中根据电路两个开关管的通断情况分析了主电路原理,并且详细介绍了以平均电流控制方式为基础的控制原理。