电压

When the cables use in alternating current system, rated voltage of cables should be at least equal the rated voltage of the system; When the cables use in direct current system,rated voltage should be not greater than 1.5 times of the rated voltage of the cables .

当电缆使用于交流系统时，电缆的额定电压至少应等于该系统的额定电压；当电缆使用地直流系统时，该系统的额定电压应不大于电缆额定电压的1.5倍。

The invention relates to an ESD protector which comprises the first well and the second well inside the semi-conductor liner, while a separating area is between them; the N pour area is inside the second well, to couple the first node; the NLDD area is between the N pour areas, and annularly poured under the NLDD areas; when the voltage of first node is higher than the breakdown voltage, the current discharge path is limited by the NLDD area and annular pour; said breakdown voltage is lower than the breakdown voltage of oxide of logic gate.

本发明提供了ESD保护技术。一种ESD保护器件包括设置在半导体衬底中的第一阱区和第二阱区，并且隔离区位于中间。N 注入区被设置在第二阱区中，并且在第一节点处耦合在一起。NLDD区被设置在N 注入区之间，并且环形注入位于每个NLDD区之下。当第一节点的电压超过击穿电压时，电流放电路径由对应的NLDD区和环形注入所限定。在一个具体实施例中，所述击穿电压小于逻辑门氧化物的击穿电压。

For the first time, it is revealed that the low frequency component of secondary arc current of series capacitor compensated transmission lines has great influence on extinguishing secondary arc and success ratio of singlephase reclosing.

3通过理论分析和仿真计算，讨论了串补装置对输电线路工频过电压、操作过电压和雷电过电压的影响，并对串补电容器组在以上过电压作用时的工作条件进行了计算分析。

Secondly, We design the voltage-modulating circuit of the BLONDEL. We can modulate the voltage of the aided electrical exciting winding, then result in the alternation of the air-gap magnet field. We can keep the outer voltage invariable.

其次，本文采用96系列单片机设计了双电压复合励磁稀土永磁同步发电机的电压调节电路，可调节加在电励磁绕组上的电压，从而改变发电机气隙磁场的强弱的变化，使发电机的输出电压保持恒定。

Overvoltages are initially clipped by breakdown clamping until the voltage rises to the breakover level, which causes the devices to crowbar into a low-voltage on state.

保护器由一个匀称电压触发型双向交流二极管组成，过电压最初被弱钳位剪除址到电压上升至超过的级别，该级别会造成装置进入一个低电压开启状态。

Solar controller series is the intelligent control of micro-computer chip products, it can real-time monitoring of solar cell voltage and battery voltage, when the charging voltage reaches the rated voltage automatically transferred to the pulse charging, the battery automatically stops charging after saturation, the effective prevention of Charge-off and less filling.

串联型太阳能控制器，是微电脑芯片控制的智能产品，它能实时监控太阳能电池的电压和蓄电池的电压，当充电电压达到额定电压时，自动转入脉动充电，蓄电池饱和后自动停止充电，有效防止过充和欠充。

The invention relates to an amplifier circuit containing a high-frequency transistor (1) and having a circuit (2) for adjusting the operating point, which provides a base current for the high-frequency transistor (1) according to the voltage released at a resistor (3) which is connected in the collector ring of the high-frequency transistor (1). The circuit (2) has a differentiating unit (20), fed by the supply voltage, which compares the voltage released at the resistor (3) with a reference voltage.

带有高频晶体管(1)的放大器电路具有一个用于工作点调整的电路(2)，其依赖于在连接在高频晶体管(1)的集电极电路中的电阻(3)上下降的电压为高频晶体管(1)提供基极电流，电路(2)具有一个由供电电压馈电的差分节(20)，其把在电阻(3)上下降的电压与基准电压比较。

For the circuit to work,of course,polarities of both the base and collector circuits have to be correctforward bias applied to the base circuit,and the collector supply connected so that the polarity of the common element(the emitter is the same from both voltage sources.

对于电路的工作来说，当然，基极和集电极电路是需要更正的（正向偏置电压加在基极电路和集电极电路以便于发射极的电压极性和电压源的电压极性是相同的。

This design adopts MC68HC908GP32 MCU by way of controlling core. It can collect coulometer and pressure of an accumulator and input pressure of AD converter. Then it sends digital signals, converted from analog signals, to the computer through its serial port.

本设计采用MC68HC908GP32 MCU作为控制核心，对蓄电池的电量、端电压和AD输入电压进行采集，将采集到的模拟电压经A/D转换为数字电压通过串行端口发送给计算机。

For a constant impedance load or a constant current load, if regulating the secondary voltage by making the changer ratio higher, the primary voltage will get much lower while the load power is restoring, and the power will then lose balance. For a constant power load or a motor load, since the change of OLTC has no or little influence on the load power, the voltage of primary side almost has no change whether the tap operates or not. The influence on the voltage stability with respect to the dynamic restoring load which is sensitive to voltage is also discussed.

对于恒阻抗和恒电流型负荷，在变比上调恢复副边电压的情况下，负荷功率恢复，又使原边电压下降，可使系统功率失去平衡，而对于恒功率负荷和电动机负荷，OLTC的变化不会引起负荷功率的恢复，OLTC的变化对系统电压稳定有利；同时研究了对于一般电压敏感和具有动态恢复特性的负荷，反调分接头对电压稳定性的影响。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。