故障的

It is shown that by using ECT,both the sensitivity and reliability of the relay protection are improved,and the operation property of conventional two-stage percentage restraint differential protection is meliorated.

以线路光纤纵差保护为例，利用实验数据分析了采用ECT后纵差保护的性能，指出采用ECT后保护在区外故障可靠性、区内故障灵敏度方面有显著提高，继而改进了传统的二段式比率制动差动保护动作特性。

In the event of a fault, the computer can calculate the fault's current values and characteristics, and settings can be changed merely by reprogramming.

在系统出现故障时，计算机可计算出故障电流的值和特性，整定值的改变仅改变编程就可以了。

Aiming at fault of operating cycles counters of LW10B-252 circuit breaker in certain substation,it was proposed that the fault counters were found by using counters loop air circuit breaker to simulate motion of circuit breaker when the counters loop in good connection.

针对某变电站LW10B-252型断路器动作计数器故障问题，提出在该计数器回路接线良好条件下，采用其回路的空气开关模拟断路器动作的试验方法查找故障计数器。

There are many kinds of air-borne equipments and the signals to be measured are complex, it is hard to attain the goal of fault diagnosis and isolation just use one method.

由于运八系列飞机上装备的机载设备种类比较多，测试信号复杂，单纯使用一种故障诊断方法很难达到故障诊断与隔离的目的。

In order to improve the performance of generator relay protection, it is very important to study the synchronous generator with the internal armature winding faults.

在发电机定子绕组内部故障暂态分析方法研究的基础上，可以编制发电机内部故障仿真软件，作为实用化的研究工具。

Fault current greater than the breaking load switching capacity, must ensure that fuse load switch can be dissolved up the rear sub-gates; when the fault current is less than the breaking load switching capacity, ensure the sub-gate and fuse load switch does not move.

故障电流大于负荷开关的开断能力时，必须保证熔断器溶断后负荷开关才能分闸；当故障电流小于负荷开关的开断能力时，保证负荷开关分闸而熔断器不动作。

At last, the problems are resolved by taper-cone instead of cone logic valve .

介绍了插装阀在步进梁式加热炉液压系统中的应用；分析了系统逻辑锥阀的故障原因，在把逻辑锥阀由单锥面改为双锥面后，系统故障消除了。

By virtue of bifurcation diagrams, Poincaré maps, orbits, time histories and frequency spectrum diagrams, the nonlinear dynamic responses of the generator rotor and hydraulic turbine rotor with coupling faults were analyzed. The results confirmed rich nonlinear motions such as periodic motion and quasi-periods with different values of parallel misalignment and declination. Moreover, the process of rub-impact is so complex that many low frequencies with large amplitude are in the range of

通过分岔图、Poincaré截面图、轴心轨迹图、时域波形图和幅值谱图系统地分析了发电机转子与水轮机转子在耦合故障下非线性动力学响应，发现机组转子系统随不对中平行量和偏角变化存在周期运动和复杂的拟周期，其碰摩过程非常复杂，机组故障特征频率除主要在1倍频外，还在0.3~0.4倍频处存在幅值较大的谐波分量。

What's more, the analyzer proactively prevents network failures and thereby reduces service periods and downtimes.

最具吸引力的是，此分析仪的预诊断功能有助于防范系统故障，从而降低系统故障维护时间和设备停机耗时。

In this paper,the transform of the harmonic wavelet method is applied to detect the characteristic signal components of the rotor bar broken fault.

准确检测转子断条所表现出来的故障特征，是这种故障诊断的关键。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。