电压过低

煤矿供电电压过低的危害和解决的措施

Danger and Problem Solving in Power System with Low Voltage in Coal Mine

当电池电压过低时，屏幕上有低电压提示符号。

When the battery voltage is too low , a low voltage on the screen prompt .

工作电压过低，检查电路调整电压。

Operating voltage is too low , adjust voltage check circuit .

电源电压过低；

The power is too low in voltage ;

一开始，电压过低造成哈勃的一架照相机不能正常重启动，然后电脑又出现故障，恢复工作只得停止。

First , a low-voltage power supply problem prevented one of Hubble 's cameras from being rebooted properly , and then computer trouble struck and all efforts ceased .

经试验分析，辅助逆变器起动失效是由蓄电池电压过低、控制电源电流的冲击及相关干扰等因素综合造成的。

As the test shows , the starting failure of auxiliary inverter is caused by the low storage battery voltage , the impact of the power control battery and other related factors .

大电源长线路末端接地故障使零序保护出现因零序电压过低而使保护拒动的严重问题，成为零序保护在实际应用中的新难点。

The end earth fault of big power source and long line makes zero-sequence protection appearing serious problem that protecting refused to move because the voltage of zero-sequence is low , and become a new difficult point that zero-sequence protection in practical application .

这种电压过高或过低可能是一个相当普遍的现象，取决于与计算机公用同一电路的设备数量和类型。

Depending on the same circuit with the common computer the number and type of equipment , this may be a very common phenomenon .

当电网断电时间不长又突然送电和电网电压过高或过低的情况下能使电冰箱得到保护。

The protection socket for the refrigerator can protect the refrigerator when the power is supplied shortly after the electric network cuts off the power and the network voltage is too high or too low .

差频或同频并网过程中，对于系统和机组电压过高或过低、系统和机组频率过高或过低具有告警功能，且闭锁合闸。

During difference frequency parallel and same frequency parallel process , the device has the function of alarm , atresia and close brake when the system and the unit voltage and system frequency are too high or too low .

分析了由于该类型号电池电液浓度过高，加之充电（包括浮充和均充电压）上限电压过低而导致电池的硫酸化，是电池容量锐减的主要原因之一；

The main reasons of the battery capacity degradation are analyzed . Battery electrolyte concentration is too high , and the charge upper limited voltage ( includes float charge and average charge voltage ) is too low , these cause the sulphation .

该智能化UPS系统的关键技术包括8032内部定时/计数器的分配、系统中断、市电和电池供电的同步切换、UPS输出电压的稳定与调整、PWM控制、蓄电池电压过低保护与充电等等。

The key technology of intellectualized UPS system include the distribution of timer or counter in 8032 , system interruption , synchronous switching of AC / DC , the stabilization and regulation for output voltage of UPS , PWM control , low voltage safeguard of storage battery and charge .

它可使调压精度提高到工作电压的士1%以内，并在自动调压器输出电压过高或过低时、或出现故障时进行告警。

The apparatus gives alarm signals if the output voltage of automatic voltage regulators is too lower or higher and other troubles happened .

结果表明，电池析气量和失水率高是由于充电电压过高引起的，而极板的硫酸盐化则是因为充电电压过低、充电容量不足。

The results show that the high gassing volume and water loss rate are caused by the high charging voltage while the sulphation of plates is due to the insufficient charge capacity caused by the low charging voltage .

电源电压应控制在不大于或小于额定电压的5%范围内，如果电压过高或过低都会损坏电机。

Supply voltage should be controlled at not greater than or less than the rated voltage range of5 % , if the voltage too high or too low will damage motor .

为了消除浪涌电流和降低输入电压的要求，电路具有软启动功能；同时通过过压、欠压保护电路防止了电压过高和过低的情况发生。

In order to eliminate surge current and reduce the input voltage , with soft start-up circuit function , And through overvoltage and lowvoltage protection to prevent the higher or lower voltage happens .