功率谱估计结果可作为暂态保护判据计算和校核依据。
The result of spectrum estimation can be used as the reference of criterion calculation and checkout in transient protection.
而且该保护判据不受故障位置、故障电阻、故障类型和故障时刻的影响。
And this criterion cannot be affected by faults position, faults resistance, faults type and faults occurring time.
通过在制动信号中引入噪声估计考虑噪声的影响，提高了保护判据的可靠性。
To consider the effect of noise on the protection scheme, an estimation of noise deviation is introduced in the restraint signal, so that the reliability of protection scheme is improved.
本文介绍了国内现有的典型低励失磁保护判据，分析了现有判据存在的一些问题。
It introduces the domestic existing partial or total loss of excitation protection criterion, analyzed the problem of existing criterion.
单一的差动保护判据无法兼顾超高压长线保护对灵敏性、速动性和可靠性的要求。
Single differential criterion can't satisfy the special requirements of long UHV transmission line for the sensitivity, speed and reliability of protection.
在对现有输电线路电流差动保护判据研究的基础上，提出了一种归一化电流差动保护判据。
On the basis of analyzing existing criteria for current differential protection of transmission line, a normalized criterion for current differential protection is proposed.
提出了采用测量线路零序导纳进行接地保护的新原理，讨论了直线式导纳继电器的接地保护判据。
New principle for feeder grounding fault protection based on zero sequence admittance is presented in this paper. Criterions for the line ground relay with zero sequence admittance are also discussed.
并从分布参数线路的相关理论出发，推导出了模量形式的保护判据，从原理上消除了线路参数分布性对保护的影响。
The criterion of protection is deduced in mode-domain using the theory of line with distributed parameters to eliminate the effect of line parameter distribution on protection.
以热保护为研究对象，充分考虑了电机的热积累现象，通过求解热平衡微分方程的方法，给出了新的电动机过载保护判据。
Based on the method of solving heat balance differential equation, a novel over-load protection criterion for electric motor is presented in the paper considering the heat accumulation of motor.
推荐海水间浸低碳钢的阴极保护电位判据为- 0.95V (SCE)。
For mild steel immersed cyclically in seawater, -0.95v (SCE) was suggested as the protective potential criteria.
文章着重介绍了该项目的自适应重合闸的原理及保护配置，并对带并联电抗器的电压判据作了改进。
The principles and protection disposition of adaptive reclosing are introduced emphatically, and the voltage criterion with shunt reactor has been made improvement.
在此基础上，提出一种基于电流采样值相关度的变压器保护新判据，利用变压器两侧电流采样值波形的相关度来区分内部故障和外部故障。
Based on this, the paper presents a new transformer protection criterion to distinguish internal faults and external faults by correlation coefficients of sampled current values.
在分析双绕组变压器的差动保护算法的基础上，提出了适用于三相三绕组变压器的比率制动式算法，并对判据进行了简化。
Based on the analysis of the differential protection of the double winding transformer, the paper presents a simplified ratio restraint algorithms for the three phase, three winding transformer.
在行波母线保护的基本原理和动作判据的基础上，给出了对应一个半开关接线方式的原理方案。
The principle scheme aimed at one and a half circuit breaker model is presented based on basic principle and criterion of bus-bar protection.
应用神经网络识别变励磁电压判据的动作区，提出应用神经网络的发电机低励失磁保护方案。
Then the author uses a three-layer ANN to distinguish excitation-loss fault, and brings forward a scheme of excitation-loss protection using ANN for generator.
作为辅助判据，与线路的暂态保护结合，将有效提高特高压输电线路保护的可靠性。
As an auxiliary criterion, combined with transient-based protection, it will enhance the reliability of the UHV transmission lines' protection effectively.
对受端继电器，提出仅利用保护安装处的电压变化值构成同相点切换判据，可以有效降低系统参数的影响。
For the receiving end, a new switching criterion based on the bus voltage is described, which is immune to the system parameters.
介绍一种新型电铁主变保护装置的特点及保护配置，对主要的保护原理及判据进行分析。
The feature and configuration are introduced for the new generation of electrification railway transformer protection. Its main protective principle and criterion are analyzed.
介绍新一代电铁馈线保护装置的特点及保护配置，对主要的保护原理及判据进行分析。
The feature and configuration are introduced for the new generation of electrification railway feeder line protection. Its main protective principle and criterion are analyzed.
针对单纯采用相电流判据的不足之处，本文提出增加零序电流、负序电流及电流变化量判据，以有效地避免保护误动或者拒动。
Zero-sequence current criterion, negative sequence current criterion and phase current variation can be used to improve the performance of breaker failure protection for ACF sub-bank.
因此，自适应判据有效提高了保护在定子绕组经过渡电阻单相接地情况下的灵敏度。
Thus, the proposed adaptive criterion can effectively improve the sensitivity of generator protection is improved while the single-phase of stator winding is grounded via transition resistance.
如果仅采用相电流判据，将无法避免失灵保护误动或者拒动。
If only phase current is used in breaker failure protection, miss trip may occur no matter the threshold of current is higher or lower than load current.
本文还对新判据的电容电流补偿进行了分析，并且分析了影响保护的其它因素及其解决方案。
In addition, the paper analyse compensating capacitance currents to the new criterion and other factor which can affect the new criterion.
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.
论文根据数字保护的智能特点提出用多条件涌流制动判据来判别变压器的涌流状态新方法。
It is suggested that special over-excitation restraint function in the transformer differential protection is not necessary.
由保护单元传回的发电机运行参数作为判据协调控制励磁和调速单元。
The generator operating parameters from the protective unit are used to coordinate and control the excitation unit and speed regulation unit.
由保护单元传回的发电机运行参数作为判据协调控制励磁和调速单元。
The generator operating parameters from the protective unit are used to coordinate and control the excitation unit and speed regulation unit.
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