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The rms input voltage to the circuit in Figure 3.20a is 120 V, 60 Hz. (a) If the dc output voltage is Vdc = 48 V at Idc = 20 A, determine the values of inductance Le, α, and Irms. (b)IfIdc = 15 A and Le 6.5 mH, use Table 3.6 to calculate the values of Vdc, α, β, and Irms.

The rms input voltage to the circuit in Figure 3.20a is 120 V, 60 Hz. (a) If the dc output voltage is Vdc = 48 V at Idc = 20 A, determine the values of inductance Le, α, and Irms. (b)IfIdc = 15 A and Le 6.5 mH, use Table 3.6 to calculate the values of Vdc, α, β, and Irms.

Delmar's Standard Textbook Of Electricity
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter30: Dc Motors
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Problem 6RQ: What is CEMF?
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The rms input voltage to the circuit in Figure 3.20a is 120 V, 60 Hz. (a) If the dc output voltage is Vdc = 48 V at Idc = 20 A, determine the values of inductance Le, α, and Irms. (b)IfIdc = 15 A and Le 6.5 mH, use Table 3.6 to calculate the values of Vdc, α, β, and Irms.
TABLE 3.6 Normalized Load Current x % Ims/Ipk % a Degrees B Degrees 100.0 122.47 180 2.87 5.74 182.97 185.74 5 95.2 115.92 10 90.16 109.1 84.86 79.30 8.63 11.54 14.48 15 102.01 188.63 20 94.66 191.54 25 73.47 87.04 194.48 30 67.37 79.18 17.46 197.46 35 60.98 71.1 62.82 20.49 200.49 203.58 40 54.28 23.58 47.26 54.43 26.74 45 50 206.74 39.89 46.06 30.00 210.00 55 32.14 38.03 33.37 213.37 216.87 220.54 23.95 36.87 31.05 26.58 60 65 15.27 40.54 6.02 2.14 26.75 28.38 70 44.27 224.43 226.05 72 46.05 1.15 0.15 72.5 28.92 46.47 226.47 73 73.07 29.51 29.60 46.89 226.89 46.95 226.95
Transcribed Image Text:TABLE 3.6 Normalized Load Current x % Ims/Ipk % a Degrees B Degrees 100.0 122.47 180 2.87 5.74 182.97 185.74 5 95.2 115.92 10 90.16 109.1 84.86 79.30 8.63 11.54 14.48 15 102.01 188.63 20 94.66 191.54 25 73.47 87.04 194.48 30 67.37 79.18 17.46 197.46 35 60.98 71.1 62.82 20.49 200.49 203.58 40 54.28 23.58 47.26 54.43 26.74 45 50 206.74 39.89 46.06 30.00 210.00 55 32.14 38.03 33.37 213.37 216.87 220.54 23.95 36.87 31.05 26.58 60 65 15.27 40.54 6.02 2.14 26.75 28.38 70 44.27 224.43 226.05 72 46.05 1.15 0.15 72.5 28.92 46.47 226.47 73 73.07 29.51 29.60 46.89 226.89 46.95 226.95
m. C. R Vo (a) Circuit model
Transcribed Image Text:m. C. R Vo (a) Circuit model
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