Sentence examples for calculating the fault from inspiring English sources
Calculating the fault current contribution is complicated because of the nature of the transition into current limiting mode and because the current produced is a function of control choices as well as physical components.
It is well known that the operation of distance relays relies on the power frequency components to calculate the fault impedance and hence make decision on tripping.
Note that with comparison to the existing methods, the proposed method has a clear physical meaning and the set-membership technique makes it more feasible to calculate the fault detection rates relative to different choices of auxiliary signals with smaller energy.
Since the fault is assumed to be in the vicinity of the first PMU, its neighbor PMUs need to calculate the fault distance from the first PMU.
First, it calculates the fault distance dfi, and then converts the fault distance to the reference terminal 3 of the fault line: df3.
Online-Adaptive Over current Protection Based on the network condition, it will calculate the fault levels & relay setting will be updated by using HIL IEC 61850 communication.
For the double-terminal traveling wave fault location method, as seen in Eq. (1), in order to correctly calculate the fault position, the initial traveling wave arrival times tM 、 tN and the shortest transmission path LMN must be known.
The positive sequence voltage phasors at Bus 2 and Bus 3 (termed as Va+ and Vb+ respectively) and the current phasors flowing from both ends of the line (termed as Iab+ and Iba+ respectively) are used to calculate the fault distance.
The purpose of this paper is to formulate a scheme for fault area estimation by calculating the approximate fault location based on traveling wave theory.
The voltage and current of two adjacent substations are applied in calculating the ground fault.
In this subsection, when calculating the post-fault extinction angle, it is assumed that the trigger pulse is applied to the valve at the fault time and that the commutating voltage changes instantaneously during the fault, which is the worst case.
