Drop Dropping

Voltage sag and Momentary Outages Protection.

电压降落与瞬间停电的保护

Nearly 90% of all power quality problems are voltage sags and momentary outages.

在所有的电力质量问题中,几乎90%为电压降落与瞬间停电。

A EMS is capable to maintain the voltage in the connection bus and gives the necessary energy to feed the load when voltage drops.

当电压降落时,SMES能保持住其所联接母线的电压并向负荷提供必需的电能。

Undervoltage (Voltage Drop).

欠电压(电压降低)。

carcass hydraulic rail dropper

油压路轨屠体降落器

drooping voltage generator

电压下降特性发电机

Their job was to test special air pressure clothing and new kinds of parachutes.

以试验一种特殊气压服和新型降落伞。

hydraulic elevator

液压电梯;液压升降机;水力提升机;水压升降机

A step-down transformer can reduced a voltage to whatever value is desired.

降压变压器能把电压降到所需的任何值。

electrohydraulic coil lifter

电动液压式带卷升降台

voltage drop compensation directional relay

压降补偿式定向继电器

The voltage had been reduced in stages.

电压一直在逐步地降低。

Note the polarity of the voltage drop across R.

注意r上电压降的极性。

Thus, the terminal voltage drops to zero.

这样，路端电压就降到零。

Hydraulic system failure, hydraulic braking impossible after landing.

液压系统失效，降落后无法使用液压刹车。

JEDEC ? The input threshold voltage when the input voltage is falling.

在输入电压下降时的输入门限电压。

We say that current leads the voltage by 90° or that the voltage lags the current by 90°.

我们说电流超前电压90°，或电压落后于电流90°。

Research of Power Voltage Decline Abruptly in Digital Circuits

数字电路中电源电压瞬间跌落的研究