Transformers

Title: Multi-Objective LPO by Fuzzy Gravitational Search Algorithm in WWER1000 Authors: M. Aghaiea,*, S.M. Mahmoudib a Engineering Department, Shahid Beheshti University, G.C, P.O. Box: 1983963113, Tehran, Iran bFaculty of Electrical and Computer Engineering, Graduate University of Advanced Technology, Kerman, Iran. Number of manuscript pages: Number of figures: Number of tables: * Corresponding author Email: M_Aghaie@sbu.ac.ir Fax: +98 21 29902546 Abstract The…

4.1.4 Development of Feed Forward Control model in Simulink To implement feed forward control. Firstly, the transfer function of the linear DC Motor model has to be obtained. Actually in our case, the input of the plant is current so the transfer function of the mathematical model in ratio of angular velocity to current has to be obtained. It is given by: G(s)=Ω_1/I_a =R_A/K_M 1/(T_e s+1) where T_e=(J_meq R_A)/(K_m Cϕ) is electro-mechanical time constant. The feed forward control could be…

The derivation of maximum power transfer theorem for purely resistive DC circuits. V_L= E x R_L/(R_L+r) P_L= 〖V_L〗^2/R_L = (E^2 〖R_L〗^2/〖(R_L+r)〗^2 )/R_L = (E^2 R_L)/〖(R_L+r)〗^2 Calculating the most favourable value of the load resistor for maximum power transfer from a DC source with a internal resistance. When any arbitrary load resistance may be selected. Let R_L= kr ( k is a positive number) P_L= kr/〖(kr+r)〗^2 E^2= k/〖(k+1)〗^2 E^2/r f = k/〖(k+1)〗^2 = 1/(k+2+k^(-1) )…

Do you like the vibe of grass under your feet, or the sand in the middle of your toes, well appreciate all the more unshod contact with the Earth, since that is the thing that Earthing or Grounding truly is! As a child we cherished strolling unshod all over the place... yes it was on account of it felt great on our feet, additionally in light of the fact that our bodies felt the advantages as well. In the event that we could backtrack to those days we would be in an ideal situation, the Earth…

The problem with using resistance as a measurement is that it depends not only on the material out of which the wire is made, but also the geometry of the wire. If we were to increase the length of wire, for example, the measured resistance would increase. Also, if we were to decrease the diameter of the wire, the measured resistance would increase. We want to define a property that describes a material's ability to transmit electrical current that is independent of the geometrical factors.…

3.3.3 Selection of Die Angles The split die was designed for the ease of assembly for fabrication. AISI 52100 steel was selected as the material for the die fabrication. The entry part of the die is 12 mm and has 120 mm length. The profile of the die is also shown in the solid works software. The angle of the die is 90 is maintained, the slope radius is 20 mm. the Figure.3.1 & Figure. 3.2. illustrate the split die design and solid works model of the split die. Figure. 3.1 : Split die…

METHODOLOGY To optimize the losses of given system which will simultaneously upgrade the voltage at every bus, following methodology is opted which also includes the calculation of required shunt compensation. There are two cases: Case 1: Base case The problem formed is a non linear constrained optimization problem. Interior point method is used to solve this problem. The interior-point approach to constrained minimization is to solve a sequence of approximate minimization problems. It reaches…

Wheatstone bridge is a device used to measure unknown resistance by passing current through the resistor [1]. Wheatstone bridge is made up of a power source and galvanometer that joins the two-parallel circuits which contains two resistors each. It is very useful in finding small resistances and is used in various applications such as strain gages. The following figure shows the arrangement of a Wheatstone bridge. Figure 1: Arrangement of a Wheatstone Bridge [1] Importance of Wheatstone…

Therefore, Kotab teaches a system where the base unit and the viewing device are electrically connected to one another through wired or wireless communication, or the base unit and the viewing device are electrically and mechanically connected to one another but cannot be disconnected. Kotab does not disclose, as generally recited in amended independent claims 1 and 12 an inspection module with a mechanical interface configured to engage with a handset interface and an electrical connector…

Literature Review: In this part, a survey of existing work and literature relating to the project is covered. The differences between PM machine and conventional AC machines Induction machine is also called “asynchronies machine”. The rotor is placed in a rotating magnetic field and thus a rotating force can be attained. The rotor is a rotating conductor and is mainly produced in cage shape. The stator generates the rotating magnetic field. The rotating of the magnetic field is not achieved…