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- phase sequence voltage relay 相序电压继电器
- negative sequence voltage relay 负序电压继电器
- zero phase sequence voltage 零相序电压
- negative phase sequence voltage 负相序电压
- When voltage become over the setting value, voltage relay shall be operated. 当电压成为超过设定值，电压继电器应经营。
- A phase A fundamental positive sequence voltage selected unit based on LPF substitutes for the original ip-iq PLL to ensure exact voltage of A phase is selected even in case of imbalance three phase voltage. 并采用一种新颖的基于低通滤波的A相正序电压提取单元来代替原始的ip-iq检测法的PLL锁相环,在三相电压畸变情况下仍可以正确提取A相正序电压,以精确检测出谐波和无功电流。
- Automatically identify the phase sequence.No need to check the phase sequence. 自动判相,无需核对相序。
- Automatic feedwater and constant temperature were realized by low voltage relay. 在电路上采用低电压温控继电器安全设计,实现了自动给水和加恒温控制;
- The hardware of the voltage relay are divided into five parts, which are central processing unit, A/D conversion, keyboard display, communication module and execution module. 文中在硬件设计部分将该继电器分为中央处理单元、模数转换模块、键盘显示模块、通信模块和执行模块等几部分进行了详细的论述。
- With phase sequence control to prevent motor reversal due to the adverse consequences. 配有相序控制器;可防止因电机反转所造成的不良后果.
- All these compounds exhibit broad mesomorphic phase, and most of them show a wide smectic C phase and a phase sequence of Cr? 所有化合物具有宽的介晶相温度范围,且大部分化合物具有宽的近晶C相温度范围和Cr?
- Simply inputting one pulse on the STEP input drives the motor one microstep.There are no phase sequence tables, high frequency control lines, or complex interfaces to program. 每次给步进电机一个脉冲信号，电机就会动作一步（整步，半步，四分之一步，八分之一步还是十六分之一步取决于两个逻辑输入）。
- Zero sequence voltage protection 零序电压保护
- Zero sequence voltage transformer 零序电压互感器
- negative sequence voltage compensation 负序电压补偿
- induction type under voltage relay 感应式过低电压继电器
- fundamental negative sequence voltage 基波负序电压
- positive-phase-sequence voltage relay 正相序电压继电器
- The controller consists of three modules： the phase sequencer, the green phase decider and the phase switch. 控制器由3个模块组成：相序选择模块、绿灯判断模块和相位切换模块。
- A simplified traffic flow model for the road intersection was proposed and a fuzzy logic controller based on the phase sequencer was developed. 进行交通控制时,采用模糊控制器和相序优化器联合控耕。
