(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: 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: 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: 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: 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: 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: 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…

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.