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Both of the air gaps of the relay in the figure are 0.5 cm. The flux densities of the air gap and the core are considered equal, neglecting the flux leakage and scattering effect. The relay core is made of cast steel. It is physically and structurally identical and has a square cross-section. The sides of the cross-sectional area are 4 cm. Other dimensions are given in the figure. A magnetic flux density of 1 T is always required for the relay to pull the pallet and to keep the pallet pulled. The number of turns of the relay is N=4480 turns. Find how much current is required for the relay to pull the pallet (i1=? ) . How much current does the relay need to stay drawn (i2=?) when the pallet is pulled (air gap closed)? And in this case, how much is the Reluctance (R=?) Find the magnetic circuit inductance that occurs when the i2 current is drawn while the air gap of the relay is closed (L=?) Magnetic field strength for cast steel = 700

Both of the air gaps of the relay in the figure are 0.5 cm. The flux densities of the air gap and the core are considered equal, neglecting the flux leakage and scattering effect. The relay core is made of cast steel. It is physically and structurally identical and has a square cross-section. The sides of the cross-sectional area are 4 cm. Other dimensions are given in the figure. A magnetic flux density of 1 T is always required for the relay to pull the pallet and to keep the pallet pulled. The number of turns of the relay is N=4480 turns. Find how much current is required for the relay to pull the pallet (i1=? ) . How much current does the relay need to stay drawn (i2=?) when the pallet is pulled (air gap closed)? And in this case, how much is the Reluctance (R=?) Find the magnetic circuit inductance that occurs when the i2 current is drawn while the air gap of the relay is closed (L=?) Magnetic field strength for cast steel = 700

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Both of the air gaps of the relay in the figure are 0.5 cm. The flux densities of the air gap and the core are considered equal, neglecting the flux leakage and scattering effect. The relay core is made of cast steel. It is physically and structurally identical and has a square cross-section. The sides of the cross-sectional area are 4 cm. Other dimensions are given in the figure. A magnetic flux density of 1 T is always required for the relay to pull the pallet and to keep the pallet pulled. The number of turns of the relay is N=4480 turns. Find how much current is required for the relay to pull the pallet (i1=? ) . How much current does the relay need to stay drawn (i2=?) when the pallet is pulled (air gap closed)? And in this case, how much is the Reluctance (R=?) Find the magnetic circuit inductance that occurs when the i2 current is drawn while the air gap of the relay is closed (L=?) Magnetic field strength for cast steel = 700
zibi kutu çizerek içine yazınız. 20.5 cm www w27 0.5 cm 12 cm 4CM Its 200
Transcribed Image Text:zibi kutu çizerek içine yazınız. 20.5 cm www w27 0.5 cm 12 cm 4CM Its 200
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