A Text book of Electrical Engineering
A Text book of Electrical Engineering
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In our eReader you can find the full English version of the book. Read A Text book of Electrical Engineering Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book A Text book of Electrical Engineering
What reading level is A Text book of Electrical Engineering book?
To quickly assess the difficulty of the text, read a short excerpt:
JV.. 10- 8 (119).
If in the formula T> JT O'^ 71 " * -'-'max f* -"max "- jr I We put Zmax = \/2 . 1, W6 get This equation is very convenient for calculating the magnetising current of a transformer.
From the two equations (119) and (120) a choking coil can be designed when we have chosen a suitable value for the magnetic flux-density. If, for example, an E. M. F. Of 30 volts is to be induced by a current of 10 amperes at a frequency of 50, we may proceed in the following manner. The flux- densi...ty is taken at 5, 000 lines per sq. Cm. And the path in the iron is neglected, so that we need only consider the length / of the air-path. The cross-section of the iron is assumed to be 15 sq. Cms. We have then N = ma * A = 5, 000 . 15 = 75, 000. From equation (119) we have ^. 10 8 30. 10 8 _ 1Qn ~~ 4-44 . N . ~ ~ 4'44 . 75, 000 . 50 * Putting the number of turns S equal to 180 in equation (120) we get 1-78. . M . I_l-78. 180. 1. 10 max 5, 000 This is the length of the air-gap. The cross-section of the path across the air-gap has been taken as equal to the cross- section of the iron.
What to read after A Text book of Electrical Engineering?
You can find similar books in the "Read Also" column, or choose other free books by Adolf Thomlen to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
JV.. 10- 8 (119).
If in the formula T> JT O'^ 71 " * -'-'max f* -"max "- jr I We put Zmax = \/2 . 1, W6 get This equation is very convenient for calculating the magnetising current of a transformer.
From the two equations (119) and (120) a choking coil can be designed when we have chosen a suitable value for the magnetic flux-density. If, for example, an E. M. F. Of 30 volts is to be induced by a current of 10 amperes at a frequency of 50, we may proceed in the following manner. The flux- densi...ty is taken at 5, 000 lines per sq. Cm. And the path in the iron is neglected, so that we need only consider the length / of the air-path. The cross-section of the iron is assumed to be 15 sq. Cms. We have then N = ma * A = 5, 000 . 15 = 75, 000. From equation (119) we have ^. 10 8 30. 10 8 _ 1Qn ~~ 4-44 . N . ~ ~ 4'44 . 75, 000 . 50 * Putting the number of turns S equal to 180 in equation (120) we get 1-78. . M . I_l-78. 180. 1. 10 max 5, 000 This is the length of the air-gap. The cross-section of the path across the air-gap has been taken as equal to the cross- section of the iron.
What to read after A Text book of Electrical Engineering?
You can find similar books in the "Read Also" column, or choose other free books by Adolf Thomlen to read onlineMoreLess
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