当电池电压下降到预定的欠压值时，能自动侦测，同时停止输出。
The controller continuously detects the voltage of the battery and switches off the power output when battery voltage is lower than a specified value.
该继电器的设计思想是将过压继电器和欠压继电器集成到一起，并且实时显示所测电压值，能修改电压的上、下限。
The low-voltage relay and the excess voltage relay are integrated into one relay, which can display the real time of the voltage of the circuit and the limit of voltage can be modified.
井底负压值控制是欠平衡钻井技术的基础，而井底负压值的大小与环空多相流的有关压力计算有关。
The under-balanced drilling technology is based on how to control the bottom negative pressure which is related to the pressure computation of multiphase flow in annulus .
正常源每一相位的欠压传感：起始电压可在额定值85 - 100%的范围内调节；回动电压可在始动值75 - 98%的范围内调节。
Undervoltage Sensing for Each Phase of Normal Source: pickup voltage is adjustable form 85 to 100 percent of nominal, and dropout voltage is adjustable from 75 to 98 percent of pickup value.
其他功能还包括28纳秒(典型值)，快速的上升和下降时间很短的传播延迟，以及电源轨欠压锁定。
Other features include a short propagation delay of 28 ns (typical), fast rise and fall times, and supply rail under-voltage lockout.
其他功能还包括28纳秒(典型值)，快速的上升和下降时间很短的传播延迟，以及电源轨欠压锁定。
Other features include a short propagation delay of 28 ns (typical), fast rise and fall times, and supply rail under-voltage lockout.
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