Based on discrete wavelet transform(DWT) and multiresolution analysis(MRA),a method to identify the inrush current with the internal fault current is proposed,.And combining wavelet analysis with entropy theory,the new-type protection criterion formula is presented.The simulation models of no load ...
Fault current calculations are based on Ohm's Law in which the current (I) equals the voltage (V) divided by the resistance (R). The formula is I = V/R. When there is a short circuit the resistance becomes very small, and that means the current becomes very large. If the resistance...
X. The neutral current for the transformer is also determined, with the neutral current being designated I.sub.Y. A directional element calculates a torque value T according to the following formula: T=R.sub.e (I.sub.X ·I.sub.Y *). This torque value will be negative for an external...
Model contribution lies articulated in formula (21): $$CPV = \frac{{\sum\limits_{i = 1}^{k} {S\Lambda_{i} } }}{{\sum\limits_{i = 1}^{{\text{m}}} {\Lambda_{i} } }}$$ (21) Transformer fault diagnosis model process This article, established on the premise of ...
where Lo is the length of the arc in m in still air, v is wind speed in m/s, t is arc duration in s and Irms is the rms short-circuit current in kA. The formula is adjusted to include arc elongation due to wind speed. For example, for Lo=7.75 m for a typical 400-kV over...
1.This paper describes a mathematic mode of unbalanced three-phase power system,derives the formula for broken-line faults calculation and gives the program block diagram.讨论了三相参数不对称电力系统纵向故障计算的数学模型,推导了有关计算公式,给出了计算框图。 英文短句/例句 1.This paper describes a ...
旋转位置嵌入代表了 Transformer 架构的范式转变,提供了一种更稳健、直观和可扩展的位置信息编码方式。 RoPE不仅解决了LLM context过长之后引起的上下文无法关联问题,并且还提高了训练和推理的速度。这一进步不仅增强了当前的语言模型,还为 NLP 的未来创新奠定了基础。随着我们不断解开语言和人工智能的复杂性,像 RoPE ...
1.Longitudinal and Asymmetric Fault Calculation for New-type Converter Transformer新型换流变压器纵向不对称故障计算 2.Control Strategy for VSC-HVDC Transmission System During Unbalanced Fault轻型直流输电系统的不对称故障控制策略 3.A STUDY ON A DC SYSTEM SIMULATING MODEL FOR THE ASYMMETRIC FAULT交流系统发...
Research on bearing fault diagnosis method based on transformer neural network The Attention mechanism (AM) has been widely used for fault diagnosis and identifying the health of industrial equipment. Existing research has only used A... Z Yang,J Cen,X Liu,... - 《Measurement Science & Technol...
To detect substation faults for timely repair, this paper proposes a fault detection method that is based on the time series model and the statistical process control method to analyze the regulation and characteristics of the behavior in the switching process. As the first time, this paper propos...