Homework Answers
Add Answer to:
ET 103 - ELECTRICAL MACHINES I Assignment 01 QUESTION # 04 A ferromagnetic core with a...
Problem 1) A ferromagnetic core with relative permeability 1000 has a depth of 5 cm as...
Problem 1) A ferromagnetic core with relative permeability 1000 has a depth of 5 cm as shown below. All the dimensions are shown in the diagram. Due to fringing effects, the effective area of the air gaps is 10% larger than their physical sizes. a) [10 marks] For i-5 A, draw the equivalent magnetic circuit and determine the flux values for the left, middle, and right arms of the core. b) [3 marks] Now wrap a second coil of 100...
The figure shows a ferromagnetic core with a relative permeability of 2000. The dimensions are shown...
The
figure shows a ferromagnetic core with a relative permeability of
2000. The dimensions are shown in the diagram and the core depth is
7 cm. The between irons on the left and right side of the core have
0. 050 and 0. 070 cm, respectively. Due to the marginal effects,
the effective area of the air gap increases by 5% with respect to
the physical area. If there is a 300-turn coil wound in the central
column of the...
For problem f), the current value is not on the picture. How to find the force...
For problem f), the current value is not on the picture. How
to find the force and get the flux without current since F=Ni. Same
for problem g)
5. (34 points) A ferromagnetic core with a constant relative permeability of 2000 is shown in the following figure. The core depth is 6 cm, and all dimensions are as shown in the figure. The air gap length on the leftmost column of the core is 0.01 cm. Because of fringing effects,...
Question 7 A magnetic core is shown in Figure 1. Relative permeability of the core is...
Question 7 A magnetic core is shown in Figure 1. Relative permeability of the core is 14 = 2000. Total number of winding turns in the left winding is NL = 100 and in the right winding is Nr = 10. Assume that the core cross section is uniform and the combined length of all air-gaps is much smaller than the dimensions of the core cross-section. Calculate the following: a) The magnetomotive force in the core if i = 2...
3. A ferromagnetic core with a relative permeability of 1600 is shown in the following figure....
3. A ferromagnetic core with a relative permeability of 1600 is shown in the following figure. The core depth is 6 cm. 10 cm20 cm 5 cm 10 cm i=2A 300 turns3 30 cm 10 cm Core Depth = 6cm Assuming the current in the coil with 300 turns to be 2 A a) Find l1. l2. l3 and l in meters. (4 points)
[Magnetic circuits – 20 points] A two-legged magnetic core with an airgap is shown in the...
[Magnetic circuits – 20 points] A two-legged magnetic core with an airgap is shown in the below figure. The cross-sectional area of the core is A. = 20 cm?, the mean length of the core is l. =80 cm, and the length of the airgap is 0.06 cm. The number of turns on the coil is 200. The relative permeability of the core can be assumed to be constant and equal to 2000. The fringing effect causes a 6% increase...
3. [Magnetic circuits – 20 points] A two-legged magnetic core with an airgap is shown in...
3. [Magnetic circuits – 20 points] A two-legged magnetic core with an airgap is shown in the below figure. The cross-sectional area of the core is A = 20 cm², the mean length of the core is l. =80 cm, and the length of the airgap is 0.06 cm. The number of turns on the coil is 200. The relative permeability of the core can be assumed to be constant and equal to 2000. The fringing effect causes a 6%...
explain in a simple way Assignment Report Q1. For the Magnetic circuit shown in Fig. 5.1,...
explain in a simple way
Assignment Report Q1. For the Magnetic circuit shown in Fig. 5.1, relative permeability of the core material is 6000, its rectangular cross section is 2 cm by 3 cm. The coil has 500 turns and the core thickness is 3 cm. If flux density in the gap is 0.25 T. Find the following: a) The gap reluctance (assume that fringing increases effective cross-sectional area of air gap by 50%). b) The required airgap mmf. c)...
3.20 points - Magnetic circuit: A two-legged ferromagnetic core with relative permeability of 1500 is shown...
3.20 points - Magnetic circuit: A two-legged ferromagnetic core with relative permeability of 1500 is shown in the figure with its dimensions. Find the following: 1. Self and mutual inductances of the two windings with 400 and 300 turns. 2. What current will produce flux density of 1T in the core, if the first (left) winding with 400 turns is energized and the second winding is left open. 3. The rms voltage across the first winding, assuming the energizing source...
5. A core with three legs is shown in the figure below. Its depth is 8cm,...
5. A core with three legs is shown in the figure below. Its depth is 8cm, and there are 400 turns on the center leg. The remaining dimensions are shown in the figure. The core is composed of a steel having the magnetization curve shown below. Answer the questions given below: a. What current is required to produce a flux density of 0.5T in the central leg of the core? b. What current is required to produce a flux density...
Problem 1) A ferromagnetic core with relative permeability 1000 has a depth of 5 cm as shown below. All the dimensions are shown in the diagram. Due to fringing effects, the effective area of the air gaps is 10% larger than their physical sizes. a) [10 marks] For i-5 A, draw the equivalent magnetic circuit and determine the flux values for the left, middle, and right arms of the core. b) [3 marks] Now wrap a second coil of 100...
The
figure shows a ferromagnetic core with a relative permeability of
2000. The dimensions are shown in the diagram and the core depth is
7 cm. The between irons on the left and right side of the core have
0. 050 and 0. 070 cm, respectively. Due to the marginal effects,
the effective area of the air gap increases by 5% with respect to
the physical area. If there is a 300-turn coil wound in the central
column of the...
For problem f), the current value is not on the picture. How
to find the force and get the flux without current since F=Ni. Same
for problem g)
5. (34 points) A ferromagnetic core with a constant relative permeability of 2000 is shown in the following figure. The core depth is 6 cm, and all dimensions are as shown in the figure. The air gap length on the leftmost column of the core is 0.01 cm. Because of fringing effects,...
Question 7 A magnetic core is shown in Figure 1. Relative permeability of the core is 14 = 2000. Total number of winding turns in the left winding is NL = 100 and in the right winding is Nr = 10. Assume that the core cross section is uniform and the combined length of all air-gaps is much smaller than the dimensions of the core cross-section. Calculate the following: a) The magnetomotive force in the core if i = 2...
3. A ferromagnetic core with a relative permeability of 1600 is shown in the following figure. The core depth is 6 cm. 10 cm20 cm 5 cm 10 cm i=2A 300 turns3 30 cm 10 cm Core Depth = 6cm Assuming the current in the coil with 300 turns to be 2 A a) Find l1. l2. l3 and l in meters. (4 points)
[Magnetic circuits – 20 points] A two-legged magnetic core with an airgap is shown in the below figure. The cross-sectional area of the core is A. = 20 cm?, the mean length of the core is l. =80 cm, and the length of the airgap is 0.06 cm. The number of turns on the coil is 200. The relative permeability of the core can be assumed to be constant and equal to 2000. The fringing effect causes a 6% increase...
3. [Magnetic circuits – 20 points] A two-legged magnetic core with an airgap is shown in the below figure. The cross-sectional area of the core is A = 20 cm², the mean length of the core is l. =80 cm, and the length of the airgap is 0.06 cm. The number of turns on the coil is 200. The relative permeability of the core can be assumed to be constant and equal to 2000. The fringing effect causes a 6%...
explain in a simple way
Assignment Report Q1. For the Magnetic circuit shown in Fig. 5.1, relative permeability of the core material is 6000, its rectangular cross section is 2 cm by 3 cm. The coil has 500 turns and the core thickness is 3 cm. If flux density in the gap is 0.25 T. Find the following: a) The gap reluctance (assume that fringing increases effective cross-sectional area of air gap by 50%). b) The required airgap mmf. c)...
3.20 points - Magnetic circuit: A two-legged ferromagnetic core with relative permeability of 1500 is shown in the figure with its dimensions. Find the following: 1. Self and mutual inductances of the two windings with 400 and 300 turns. 2. What current will produce flux density of 1T in the core, if the first (left) winding with 400 turns is energized and the second winding is left open. 3. The rms voltage across the first winding, assuming the energizing source...
5. A core with three legs is shown in the figure below. Its depth is 8cm, and there are 400 turns on the center leg. The remaining dimensions are shown in the figure. The core is composed of a steel having the magnetization curve shown below. Answer the questions given below: a. What current is required to produce a flux density of 0.5T in the central leg of the core? b. What current is required to produce a flux density...
Most questions answered within 3 hours.
-
1a) According to the ideal gas law, _______________.
a. a gas has infinite volume at absolute...
asked 16 minutes ago -
Oakdale Fashions, Inc. had $245,000 in 2018 taxable income.
Using the tax schedule in Table 2.3...
asked 39 minutes ago -
The marketing class at CSUS had an average score of 150. An
educational analyst determined that...
asked 1 hour ago -
Justin Case has purchased a $250 000 home by putting 20 % down
and taking out...
asked 2 hours ago -
1. In a labor market, marginal cost for a firm is
____________.
a. recruiting cost
b....
asked 2 hours ago -
On January 1, 2019, ABC Company issued $60,000,000 of 20-year,
10.5% bonds when the market rate...
asked 3 hours ago -
39.4% of US homes continue to use a landline in addition to cell
phone service. 3...
asked 3 hours ago -
Starting with benzene, synthesize 1-phenyl-1-butyne.
Show intermediates and reagents.
asked 4 hours ago -
Create a 32-run crossed array design with six control factors
and two noise factors such that...
asked 5 hours ago -
A 500g sample of sand from source A has the following amounts
retained on each sieve....
asked 5 hours ago -
In
your own words, please explain the essay by John Keynes wrote "The
End of Laissez...
asked 5 hours ago -
How are the matrix and pixels related? Why are smaller
pixels better for diagnostic quality?
asked 5 hours ago