所有类型的电脑都容易遭受电力故障或数据被盗。但是细菌对于网络攻击是免疫的。你可以对信息进行安全地保护。
All kinds of computers are vulnerable to electrical failures or data theft. But bacteria are immune from cyber attacks. You can safeguard the information.
介绍了电力系统继电保护中存在的隐形故障问题。
This paper introduces the problem of hidden failures in relay protection of power systems.
继电保护中隐性故障以不正确的和不期望的方式切除电力系统元件造成电力系统大面积扰动。
It was found that hidden failures in protection schemes caused the disconnection of power system elements in an incorrect and undesirable manner contributing to the disturbance degradation.
为电力系统设备的故障诊断和保护提供了强有力的手段。
So that to provide the heavy support means of failure diagnosing and protection of power system equipment.
介绍了电力系统线路故障点判断常用的保护动作分析、故障录波器分析和雷电定位系统三种方法。
This paper describes . and compares three popularly used trouble locating methods of power lines, i. e. , protection action analysis, fault recorder analysis and lightning location system.
以苏州电力光纤通信网西外环为对象,研究了各种通道故障下复用段保护切换、恢复过程中通道时延的变化情况。
Taking the Suzhou power fiber optic communication grid as the object of research, this paper studies the transmission delay during protection and recovery in various channel failures.
继电保护装置是一种反应电力系统故障和不正常运行状念,并动作于断路器跳闸和发出信号的设备。
Relay protection is one of device to respond the fault and abnormal circulate situation of electric power system, to make the breaker action and to send out the signal.
GPS同步时钟信号已在电力系统的继电保护、事件顺序记录、故障测距、同步采样等诸多领域获得重要运用。
The clock signal provided by Global Positioning System(GPS)is widely used in electric power system for relay protection, SOE (Sequence of Events), fault locating, synchronous sampling and so on.
因此,它可应用于电力系统故障检测、保护和电力有源滤波器谐波电流检测中。
Therefore it can be widely applied to fault detection, protection for power system and active power filter.
电力系统的保护就是通过对故障进行快速的检测、定位,达到正确动作、消除故障的目的。
The protection of power system is quick detection and localization of fault in order to act rightly and clear out the fault.
电力半导体器件故障电流(特别是短路电流)的确认与及时有效保护,对电力机车交流装置的可靠工作至关重要。
Acknowledge and in time effective protection of power semiconductors from fault current is of utmost importance for the reliable operation of AC equipment on electric locomotive.
电力系统继电保护装置的动作正确性在很大程度上取决于故障电流转变的准确性。
The correct operation of relay protections largely depends on the correct detection of fault current in power system.
将电力故障录波数据重现为实际波形对于继电保护测试和保护动作行为分析等具有重要意义。
It is of significance for the testing and action analysis of protection devices to reproduce the actual waveforms by use of fault record data of power system.
PT断线作为电力系统中一种常见的故障,能否及时有效地进行判别,是继电保护装置正确动作的前提条件。
It is the precondition for protection's correct operation to verify PT breaking in time, which is a common fault in power system.
继电保护故障信息处理系统能为电力运行提供非常详细和丰富的各种实时以及故障时的数据资料。
The relay protection and fault information system can provide highly detailed and abundant data of real-time or fault cases of the power grid.
复杂电力系统发生复故障时,方向高频保护可能正确动作也可能不正确动作,而继电保护的不正确动作将直接危害电力系统的安全稳定运行。
While multiple faults occur in complex power system, the pilot protections could correctly operate or not, and incorrect operation of the pilot protection is harmful to the power system.
故障诊断系统依据保护继电器和断路器的采样信息估计电力系统中故障段的位置。
The diagnostic system can be applicable to power system control center for fault section estimation using information of relays and circuit breakers.
电力系统故障录波,对分析电网故障、评价保护动作以及故障测距等,均有重要意义。
The faulty waveform recording in power system is important for the analysis of power network fault, the evaluation of protection's operation characteristic, fault location, and so on.
本文提出了电力变压器内部相间故障的分析方法,比较了距离继电器及其他后备保护在此故障时的灵敏度。
In this paper the method of analyzing the phase-to-phase faults in power transformers is presented. The sensitivities of distance relays and other back-up protections during the faults are compared.
如何准确地检测出故障线路一直是电力系统继电保护的重要研究课题。
How to detect the fault line quickly and accurately is an important issue in electric power system protective relaying.
真空开关是电力系统中的关键设备,用于接通、分断电力系统同时对各种故障进行保护监控。
Vacuum switch is the key equipment in power system and is used to turn-on and disconnection power system. At the same time it should protect and monitor many kinds of faults.
电磁式电流互感器在电力系统故障情况下可能发生饱和,常导致继电保护装置误动或拒动。
The saturation of magnetic current transformers, occurred during a fault on the power system, will lead to mal-operation or refused operation of protection relay.
电力系统故障录波数据是电力系统故障分析和保护动作判据的重要依据。
The power fault recording data is the significant basis of fault analysis and protection action judgment in a power system.
保护区内部的电力系统故障。
保护区外部的电力系统故障。
当电力系统发生故障时,系统中的保护装置动作,将故障线路或元件切除。
When a fault occurs in power system, the relevant relay will operate and send out trip order to clear the faulted transmission line or other parts.
当电力系统发生故障时,系统中的保护装置动作,将故障线路或元件切除。
When a fault occurs in power system, the relevant relay will operate and send out trip order to clear the faulted transmission line or other parts.
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