Stray or feral cat with hair loss and unweight - photo by editor b (flickr) in my neighborhood there are many stray cats, and one in particular a black male cat seems real ill, sometimes he has funk coming out of his eyes. Feeding feral and stray cats is generous, but they need health care as well if you can’t manage ongoing care, “at the very least, get the cat neutered,” suggests case if you can’t manage ongoing care, “at the very least, get the cat neutered,” suggests case. The stray losses in a transformer comprise winding stray losses, viz eddy loss and circulating current loss the loss in the edge stack (smallest packet of the core limb) and the loss in structural parts, viz frame, flitch plate and tank core. Stray losses in power transformer [2, 3] hot spots are formed so the stray loss evaluation is an essential aspect to calculate hot spot temperature the stray losses in transformer is caused by the journal of theoretical and applied information technology.
Other losses are called stray loss stray loss is a loss caused by eddy currents in the core portions near coil ends and conductive parts near the coils which in turn are caused by mainly leakage flux from the coil ends. Stray losses in addition to the losses stated above, there may be small losses present which are called as stray losses or miscellaneous losses these losses are difficult to account they are usually due to inaccuracies in the designing and modeling of the machine most of the times, stray losses are assumed to be 1% of the full load. Measurement of stray load loss of dc machines by a thesis submitted to th~ faculty of the university of missouri at rolla in partial fulfillment of the requirements for the degree master of science in electrical engineering rolla, missouri 1965 ll acknowledgements the author gratefully acknowledges the guidance and.
Feral, stray, and pet cats are all members of the same species they are all domestic cats may also have “stud tail”—hair loss, greasiness, or bumps at the base of the tail due to hormones will not have an eartip alley cat allies recognizes that a cat’s level of socialization and behavior is not always black and white. A) hysteresis losses each time the magnetic field is reversed, a small amount of energy is lost due to hysteresis within the core for a given core material, the transformer losses are proportional to the frequency, and is a function of the peak flux density to which it is subjected. Stray losses in transformer tank ingmilan krasl, phd ingjana jiřičková, phd bc & ingrostislav vlk, phd abstract: this paper presents the application of 3d finite-element approaches to calculate losses in the tank and frame of the transformer the equations, boundary conditions and excitations of models are explained with some detail in this work. Stray loss leads to localized overheating in the machines and it is extremely difficult to determine the exact amount of stray loss stray losses are generated at many places inside the electrical machinery and leads to poor efficiency of the machines.
What is stray loss in transformer answer / abhishek khandelwal leakage flux in a transformer produces eddy current in the conductors, these eddy current produces losses that is called stray loss of a transformer. Calculate transformer losses (as per test results) february 25, 2014 11 comments calculate copper losses at full load & actual load calculate stray losses at full load & actual load calculate total losses at full load & actual load calculate transformer efficiency at full load & actual load free download rate this. The classification stray load loss includes all losses which vary with the load but which are not accurately determinable such losses are caused by: 1 eddy currents in armature conductors 2. At this point stray losses and mechanical losses are deducted and the remaining power is the output power available to the mechanical load in reality, core losses occur on both the rotor and stator and stray losses are usually electrical losses distributed throughout the motor.
The stray losses are high frequency losses in the machine caused by space harmonics in tile air gap flux wave the primary causes of these space harmonics are the. Stray load loss refers generally to the sources of induction machine loss not accounted for by typical calculations of primary or secondary copper loss, no load core loss, or friction and windage loss. Definition of stray losses: the stray load losses of an electrical machine, due to stray fields and harmonic flux pulsations in the iron circuit and eddy currents in the windings. Losses reduction in distribution transformers ah al-badi senior member ieee, a elmoudi, stray and hysteresis losses the most important of these losses is that due to eddy current losses in the winding it can be very large and losses are the main issue that faces any device in real life, so.
In large power transformers, more than 20% of the total load loss is the stray loss in structural components the biggest part of stray loss takes place in the transformer tank. Seperation of stray losses aim: by conducting suitable tests separate, the stray losses of a dc shunt machine into frictional losses, windage losses, hysteresis losses and eddy current losses. These losses are usually very small about 15% of full load loss stray load losses in dc machine there are some more losses other than the losses which have been discussed above these losses are called stray-load losses. This component of total losses is called 0 stray (additional) loss (ps ) in addition, experts distinguish between the stray losses in the windings (winding eddy loss: ddy-current loss in conductors, and circulating-current loss in parallel strands) and outside the windings (stray 2 magnetic shield on the tank yoke clamping plate 3 core the company kon©ar power transformers (kpt) has been.
The results show that stray loss and loss density in structure parts are large and which may lead to local overheating and affect performance of the transformer the magnetic shields are used to reduce the stray loss and. Stray cat found us yesterday - don't think she's older than a year very skinny and has fur missing on rear quarters, part of the sides of her torso and at the base of her tail (rest of tail is fine. Loss prophet 51 janusz duc, bertrand poulin, miguel aguirre, pedro gutierrez – optimization of tank shielding is a challenging aspect of design because of the need to reduce stray losses generated in the metallic parts of power transformers exposed to magnetic fields the simulation methods now.