额定

Due to capacity increase or structure change of the power system, an extra-high current possibly 100 times of the rated current may appear in some circuits of the power system when a short-circuit fault happens nearby. This current is extra high and exceeds the permitted value of 10% error curve of protection current transformer.

在电力系统中，各回路的最大故障短路电流和额定工作电流的比值应在合理的范围内，以保证保护用电流互感器的工作精度，但由于系统容量增大或因系统结构等原因，某些回路在某些情况下的最大故障短路电流远远超过了正常范围。

Moreover, second-winding current waveform of a current transformer is calculated under the transient current of the typical short-circuit fault by numerical method. The analysis shows that the relevant protection equipment may refuse to trip when the fault current is extra high. It will result in the maloperation of protective relays for loss of their selectivity, and cause other protective relays to operate beyond range, and extend the scope of shutdown of power supply.

在这些回路出口处发生相间直接短路等严重故障时，流过相应TA一次侧的故障电流可能达到TA额定工作电流的100倍以上，大大超过了保护用TA的10%误差容许倍数，将使TA严重饱和，从而影响相关的保护设备的动作性能，因此有必要对在这种特大电流作用下的TA的传变特性做一些探讨，以分析其对继电保护装置动作特性的影响及应采取的措施。

Rated at extraction conditions, one pump is running, because the cycle of water to reduce the system's water resistance decrease the flow of water pumps 12274T / H, head will drop to 15.0-16.0 m, in the extraction steam turbine at the maximum operating conditions, the recycled water to meet the system requirements to run a pump, because of substantial reduction in the volume of water supplied, so that substantially improve pump head, a direct result of the cooling tower water gushing, increase淋水device with a flow rate of the sink, fill up water in the hot淋水exchange reduce the time and reduces the cooling effect of cooling towers.

在额定抽汽工况下，一台水泵运行，由于循环水量减少、系统的水阻下降，水泵的流量12274T/H，扬程将下降至15.0-16.0米，在汽轮机在最大抽汽工况时，为满足循环水系统要求运行一台水泵，由于供水量大幅度减少，使水泵扬程大幅度提高，直接造成冷却塔涌水，加大淋水装置配水槽的流速，水流在淋水填料上热交换的时间减少，降低了冷却塔的冷却效果。

AC Induction Motor Control Using the constant V/f Principle and a Natural PWM Algorithm (12 pages, revision A, updated 12/05) Induction motors can only run at their rated speed when they are connected to the main power supply. This is the reason why variable frequency drives are needed to vary the rotor speed of an induction motor.

使用V/F原理的交流电机控制和简单的PWM算法（12页，修订版A，更新时间：05年12月）交流电机在连接到电源时只能以其额定速度运转，所以要改变转速必须改变电源频率。

Times via Xe flash tube with discharge resistance of 0.7 to 1Ω.

在5 ~35℃条件下，施加额定工作电压进行5000 次充放电，每次30 秒。通过放电电阻为0.7－1Ω的氙管放电，。

Charge and discharge at rated voltage at +15℃～+35℃ in every 30 seconds for 5000 times via Xe flash tube with discharge resistance of 0.7～1.0Ω.

15℃～+35℃，施加额定电压，充放电间隔30秒，共5000次，放电负载0.7～1.0Ω氙气管。

Installation and maintenance of flues and ventilation for gas appliances of rated input not exceeding 70 kW net (1st, 2nd and 3rd family gases).

额定热载不超过70kW的燃气灶的烟道及通风装置(1类、2类和3类家用燃气)的安装和维护。

Rated at 105 horsepower, this four-cylinder engine uses just over 4 liters of diesel for every 100 km of driving.

额定105马力，这四缸发动机使用刚刚超过400公升的柴油，每100公里的驾驶。

It has been obtained by analysis that for ultra-high power electric arc furnace using scrap charging the relation formula between rating capacity of transformer Pn and parameters- electric power consumption W, transformer power utilization ratio C 2, total power o...

经分析得出以废钢为原料的超高功率电弧炉变压器额定容量Pn kVA与吨钢电耗W、变压器功率利用率C2 、总通电时间ton、出钢量G之间的关系式为：Pn =(W·G·6 0 )(ton·cosφ·C2 )，同时给出了二次电压的确定方法。

The power rating is based on a printed circuit board heat spreading capability equivalent to 2 square inches of copper connected to the GND pins.

在额定功率是基于印刷电路板散热的能力，相当于2平方米的铜连接到GND引脚英寸。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。