(a) Explain briefly what is fringing effect and leakage flux.

Q: For operation at 60 Hz and a given peak flux density, the core loss of a given core is 1W due to…

A:

Q: Use the right-hand rule to find the direction of the magnetic flux for each coil shown in Figure…

A: According to the right hand thumb rule, the thumb is showing the direction of the flux and the…

Q: Explain the Working Principle used in Eddy Current .

A: The explanation for eddy current is as follows.

Q: Explain very briefly about the flux fringing and their place of occurrences.

A: Whenever the flux is developed within the air gap of the magnetic circuit, then this phenomenon is…

Q: 4-pole, wave-wound armature has 72 slots with two coil-sides per slot, each coil has four turns. If…

A:

Q: What characteristic is desirable in the B–H curve for a prospective material to be used in a…

A: In permanent magnet, the magnetic material in which the magnetic dipoles are already oriented in a…

Q: Reason for the change in the flux.

A: Since, the flux related to the system is directly proportional to the M.M.F. and inversely…

Q: Consider the magnetic circuit shown in Figure T14.4. The core has a relative permeability of 1500.…

A: Relative permeability of core, µrc = 1500. Core thickness, t = 2 cm. Core height, a = 10 cm. Core…

Q: purpose of brushes in a dc machine is__________. to change ac to dc signal to remove the losses in…

A: brushes in DC machine is placed between rorating commutator and external circuit. We will consider…

Q: The interpoles in DC machines are: O a. Used to maintain constant magnetic flux O b. Used to…

A:

Q: What is the concept of the magnetic circuit? Give examples of AC analysis of magnetic circuits .

A: MAGNETIC CIRCUIT: The Closed path followed by magnetic flux is called a magnetic circuit.…

Q: 16. This is the ability of the material to impede a flow in magnetic flux  a.   Resistance  b.…

A: The flow of current in a straight conductor produces magnetic filed lines perpendicular to the…

Q: The correct answer is already highlighted, explain in a very simple way why that is the correct…

A: Based on the basic principle of electromagnetic theory

Q: The magnetic circuit shown in Figure P13.11 hastwo parallel paths. Find the flux and flux density…

A: Given values N = 1000 turns, I = 0.2 A, lg1 = 0.02 cm, lg2 = 0.04 cm, µr = 1 Expression of…

Q: In magnetic circuits, the core is often made of laminated magnetic material. What are the benefits…

A: FIRST I WILL EXPLAIN THE BASIC MEANING OF LAMINATION    THEN I WILL DISCUSS ABOUT HOW THE EDDY…

Q: Why we use silicon steel in manufacturing induction motor Core ? can we use wood in core…

A: In this question we will write about silicon steel use in making core of IM...

Q: The core of an electro-magnetic structure is Laminated in order to: reduce the Stacking Factor…

A: Core of the transformer:- The core is constructed of numerous thin strips of grain-oriented silicon…

Q: fill inthe blank : field winding has large numberofturns of thin copper wire.                  a.…

A: Correct option is Shunt. shunt field winding has large number of turns of thin copper wire.  Where…

Q: Q3. a) Ferromagnetic materials are used widely in the construction of electrical machines, such as…

A: Ferromagnetic materials are those materials that show an automatic magnetic field at the atomic…

Q: An iron ring mean length 100 cm with an air gap of 2 mm has a winding of 200 turns. If the…

A: In this question, An iron ring mean length 100 cm air gap of 2 mm Number of turns= 200 turns. If the…

Q: a) What would be the speed of the armature, if flux per pole is 0.007 Wb? b) If the armature is…

A: Given,  Number of poles (p) =6 Number of slots=50 Each slot contains 20 conductors. Hence total…

Q: Iron losses represent: O A. Losses due to friction of the moving parts O B. Losses due to…

A: Iron losses are defined as those type of losses that practically occur in an unloaded and loaded…

Q: The hysteresis loop occurs because: Select one: a. The machine is full-loaded b. some eddy current…

A: consider the given circuit;

Q: Determine the magnetic flux density, B, inside an ideal solenoid of length much greater than…

A:

Q: Given a magnetic circuit as shown in Figure Q3(a)(i) where the core is a cast steel. B- H curve for…

A:

Q: What is the primary characteristic of an eddy current in a conductor exposed to a changing magnetic…

A: Eddy currents are circulating currents induced in the conductor when it is exposed to a changing…

Q: $2 8 cm to Nj=200 sarım 16 cm N2=500 sanm 8 cm 16 cm -8 cm 16 cm -8 cm -8 cm Derinlik = 8 cm st

A: Mean path of the flux is shown as follows-

Q: Calculate the voltage of the DC source and the stored field energy of the actuator illustrated in…

A: Given: An actuator system:The dimensions of the magnetic circuit proposed in the shown figure…

Q: In figure, a magnetic flux of F is generated with a constant current of i.  The core material used…

A: According to question: a) The reluctance of air gap is calculated as…

Q: Explain the Hysterisis loop in a magnetic circuit in detail.

A: By plotting values of flux density, ( B ) against the field strength, ( H ) we can produce a set of…

Q: In the magnetic circuit

A: Given- Relative permeability= 1200 Number of turns= 400 Current = 3A Area of cross-section of core=…

Q: Required mathematical expression of the relationship between magnetic flux density and magnetic…

A: To explain the relationship between magnetic flux density and magnetic field strength

Q: A solenoid has a magnetic reluctance of 2.2 x 10-3. It has 300 turns and a core area of 5 sq. cm.…

A:

Q: 30 cm 5 cm 5 cm B (Tesla) 73 S/ mnging effect in the air gap increases the effective cross-sectional…

A:

Q: ii) An emf, 2.5kV induced in a coil when a current of 2.75A collapses uniformly to 1.75A in 4ms.…

A:

Q: Write the types and shortly explain the magnetic losses for electrical machines

A: we need to explain the types and shortly explain the magnetic losses for electrical machines

Q: A flux of 0.0016 Wb flows in a silicon sheet steel coil/core. The arrangement appears as shown below…

A:

Q: An electromagnet has a movable iron part and dimensions of magnetic circuit with uniform cross…

A: a) R= 1697652.73 H-1, L= 9.694 mHb) flux= 70.69 micro Wb, flux density= 0.118 T, field intensity of…

Q: The norm of operation and response mode of magnetic substances, and what happens if the electrical…

A:

Fault Analysis

In an electrical engineering system, a fault is an abnormal electric current flowing through the system, and fault analysis is the study of these faults. For instance, a short-circuit is a fault where the live wire touches the ground or neutral wire. If a circuit is interrupted by a failure of a current-carrying wire then an open circuit fault occurs. The open-circuit faults are also called series faults. One or more phases or ground may be involved in a three-phase fault or may occur only between two phases. Current flows into the earth in case of a ground fault or earth fault. For most situations, the prospective short circuit current of a fault that is predictable can be calculated. To limit the loss of service because of a failure, the protective devices can detect fault conditions and operate circuit breakers and also other devices. All phases equally can be affected in a poly-phase system which is known as symmetric electrical fault. The asymmetric fault becomes more complicated to analyze if only some phases are affected. By using methods such as symmetrical components, the power system analysis of these types of faults is often simplified. The main objective of power system protection is to design, detect, and interrupt power system faults.