Development of the methods of calculation of the electrical installations working operation in case of quality supply disturbance
Volume 7 , Issue 3 , December 2020 , Pages 119-131
Authors
Ismael Kareem Saeed 1 ; Kamal Sheikh younis 2
1 University of Salahaddin, College of Engineering , Electrical Engineering Department
2 University of Salahaddin, College of Engineering , Electrical Engineering Department
10.17656/sjes.10138
Keywords
Abstract
This paper proposes a method of calculating of asymmetrical modes of operation of electrical installations where simple and adequate loads equivalent circuits are available with working electrical equipment. So the mathematical model of equation system is derived as universal way for calculating the systems operating modes when it is subjected to a disturbance due to asymmetry. With the help of the obtained model we can calculate different cases of symmetry disturbances, all types of short circuits, between phase short circuits, any type of longitudinal asymmetry, open circuits when there is a resistance for the fault current at the place of damage
In the given method, specific types of asymmetry are considered as particular cases and easily calculated from the generalized formula, which is essentially reduces the calculation and allows us to consider cases of asymmetry of any complexity. Therefore this method is offered as a basic for calculation of asymmetry when the system is subjected to a disturbance.