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That normalized distance is then used to provide multiple zones of distance protection as long as they use the same zero- 6 sequence compensation factor and the same maximum torque angle (see Fig. 7). Im(Z) Line Angle m ZR 1 Re(Z) 0 Fig. 7. The m-calculation in a microprocessor-...
The evaporation effect of droplets during the transmission was not considered in the calculation of transmission distance shown in Fig. 3. As described earlier, changes in droplet size due to evaporation are calculated with Eq. (5). It was found that 92 μm was the critical diameter to dis...
power transmission lines/ fault impedance calculationtransmission line distance protectiontransmission line faultsampled data setsharmonicshigh speed digital distance relays/ B8130 Power transmission lines and cables B8140 Power system protectionTwo algorithms are proposed to calculate the apparent impedance of ...
5. The apparatus of claim 4, wherein the basic allowable interference signal level corresponds to a value that is obtained by subtracting a protection ratio from a sum of 10 times a log value of a noise bandwidth of the wireless repeater apparatus, a noise index of the isolation distance ca...
CALCULATING LOADABILITY LIMITS OF DISTANCE RELAYS Cesar Rincon, Entergy, Jackson MS, 39215 Joe Perez, P.E., ERLPhase Power Technologies, Bryan, TX 77802 Introduction Typically, distance relays protect transmission lines from power system faults by using the method of step distance protection. This ...
The calculation of FDR has been shown to be an effective method. We use fdrtool31 to estimate the tail area-based FDR (Fdr) and density-based local FDR in this study. Using these three steps, we can determine whether a gene set is significantly related to a trait. Gene set enrichment ...
Bird Study (2009) 56, 298–309 Exploring the effects of truncated, pooled and sexed data in distance sampling estimation of breeding bird abundance ANDREW STANBURY* and RICHARD GREGORY Royal Society for the Protection of Birds, The Lodge, Sandy, Bedfordshire, SG19 2DL, UK Capsule Field ...
Line Length and Fault Distance Considerations in Traveling-Wave Protection and Fault-Locating Applications Bogdan Kasztenny and Venkat Mynam Schweitzer Engineering Laboratories, Inc. Presented at the 75th Annual Georgia Tech Protective Relaying Conference Atlanta, Georgia May 4–6, 2022 Original edition ...
Figure 23. Field of View with pin hole model Figure 23 shows an example calculation of a 1mm x 1mm photodiode with 2 different lenses (1.5mm focal length and 0.75mm focal length). In each case it shows that the field of views are very different (50° and 87°). It shows that ...