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02 (10 р.): The magnetic circuit shown is made of laminated core of cast steel. Each...
[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...
QUESTION 2 a) Given a magnetic circuit as shown in Figure Q2 where its core is...
QUESTION 2 a) Given a magnetic circuit as shown in Figure Q2 where its core is cast steel. The center limb has a cross-sectional area of 800mm2 and the other side limbs have a cross sectional area of 500mm2. The effective air gap length, lac is Imm, core length, loc= 150mm . ladb = laeb = 340mm . A coil of 400 turns is wound on the center limb. Neglect any magnetic leakage and fringing effect. i. Draw the equivalent...
Prob.l. A rectangular magnetic core shown in the below Fig, has square cross-section of area 16...
Prob.l. A rectangular magnetic core shown in the below Fig, has square cross-section of area 16 cm". An air-gap of 2 mm is cut across one of its limbs. Find the exciting current needed in the coil having 1000 turns wound on the core to create an airgap mu of 4 m Wb. The relative permeability of the core is 2000. N=1000 2 mm 25 cm - - 20 cm
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%...
***current is not given in question*** Question 2B [18 Marks The magnetic circuit shown below (all...
***current is not given in question***
Question 2B [18 Marks The magnetic circuit shown below (all dimensions in centimeters) is made from silicon steel (B-H curve attached). The magnetic flux density in the middle limb is equal to 1.2 T and the coil consists of 100 turns. a) Calculate the reluctance of each air gap.[4] b) Calculate the amount of magnetic flux in the middle limb. [1] c) Calculate the reluctance of the middle limb.[3] d) Determine the amount of...
Problem 1 (30 points) The magnetic circuit shown in Fig. 1 is made of casteel with...
Problem 1 (30 points) The magnetic circuit shown in Fig. 1 is made of casteel with magnetining curve shown 2. The coil A has 350 turns, and the coil Bhas 150 turns. The two coils are connected in series to a voltage source. The depth of the core is 2 cm. Given the dimensions (in cm) as shown in the fie I and to establish a flux density of 0.6 T in the airp. Determine: a. Reluctance of the magnetic...
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)...
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...
94 Exercise :4.A square magnetic core Figure :4. has four 0.5 mm air gaps. The core...
94 Exercise :4.A square magnetic core Figure :4. has four 0.5 mm air gaps. The core material has a relative permeability of us = 800 and a coil of 1400 turns is wound around it. The core has a square cross-sectional area of dimensions 4 cm and a magnetic path length (including the air gaps) is 20 cm. A = 4 cm 2 N = 1400 4 Air gaps = 0.5 mm each Figure : 4. = 20 cm including...
☺ Configuration A Configuration B Scenario: Consider a magnetic circuit with a mean length of 0.4...
☺ Configuration A Configuration B Scenario: Consider a magnetic circuit with a mean length of 0.4 m. A 6x102 turn coil is wound around the left-hand limb. The magnetic circuit is made from silicon steel; core effects may not be ignored. The cross section is uniform and there is a 0.6 mm air gap in the circuit. Find the current required in the coil to give a flux density of 1.40 T in the air gap. The number of turns...
[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...
QUESTION 2 a) Given a magnetic circuit as shown in Figure Q2 where its core is cast steel. The center limb has a cross-sectional area of 800mm2 and the other side limbs have a cross sectional area of 500mm2. The effective air gap length, lac is Imm, core length, loc= 150mm . ladb = laeb = 340mm . A coil of 400 turns is wound on the center limb. Neglect any magnetic leakage and fringing effect. i. Draw the equivalent...
Prob.l. A rectangular magnetic core shown in the below Fig, has square cross-section of area 16 cm". An air-gap of 2 mm is cut across one of its limbs. Find the exciting current needed in the coil having 1000 turns wound on the core to create an airgap mu of 4 m Wb. The relative permeability of the core is 2000. N=1000 2 mm 25 cm - - 20 cm
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%...
***current is not given in question***
Question 2B [18 Marks The magnetic circuit shown below (all dimensions in centimeters) is made from silicon steel (B-H curve attached). The magnetic flux density in the middle limb is equal to 1.2 T and the coil consists of 100 turns. a) Calculate the reluctance of each air gap.[4] b) Calculate the amount of magnetic flux in the middle limb. [1] c) Calculate the reluctance of the middle limb.[3] d) Determine the amount of...
Problem 1 (30 points) The magnetic circuit shown in Fig. 1 is made of casteel with magnetining curve shown 2. The coil A has 350 turns, and the coil Bhas 150 turns. The two coils are connected in series to a voltage source. The depth of the core is 2 cm. Given the dimensions (in cm) as shown in the fie I and to establish a flux density of 0.6 T in the airp. Determine: a. Reluctance of the magnetic...
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)...
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...
94 Exercise :4.A square magnetic core Figure :4. has four 0.5 mm air gaps. The core material has a relative permeability of us = 800 and a coil of 1400 turns is wound around it. The core has a square cross-sectional area of dimensions 4 cm and a magnetic path length (including the air gaps) is 20 cm. A = 4 cm 2 N = 1400 4 Air gaps = 0.5 mm each Figure : 4. = 20 cm including...
☺ Configuration A Configuration B Scenario: Consider a magnetic circuit with a mean length of 0.4 m. A 6x102 turn coil is wound around the left-hand limb. The magnetic circuit is made from silicon steel; core effects may not be ignored. The cross section is uniform and there is a 0.6 mm air gap in the circuit. Find the current required in the coil to give a flux density of 1.40 T in the air gap. The number of turns...
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