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Chp. 22 RMS and Transformers Sections C & D

Chp. 22 RMS and Transformers Sections C & D. Root Mean Square Current : I rms. rms current is the same as the amount of direct current that would dissipate the same energy in a resistor as is dissipated by the instantaneous alternating current over a complete cycle.

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Chp. 22 RMS and Transformers Sections C & D

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  1. Chp. 22 RMS and TransformersSections C & D

  2. Root Mean Square Current : Irms rms current is the same as the amount of direct current that would dissipate the same energy in a resistor as is dissipated by the instantaneous alternating current over a complete cycle. Irms = ΔVrms R Page. 808 P = (Irms)2 R = ½ (Imax )2 R Irms = Imax = .707 Imax √2 ΔVrms = ΔVmax = .707 ΔVmax √2 *Table 22-2

  3. Transformer Example Diagram

  4. Transformer Equation Page. 815 ΔV2 N1 = N2 ΔV1 ΔV2 = N2 ΔV1 N1 ΔV1 I1 = ΔV2 I2 N= # of turns V = Voltage…potential difference Examples 22 C and 22 D pg 809 and 817

  5. Transformer Problem Ex.

  6. Hmwk #4 Chp. 22 Book (13) • 22C pg. 810 1,3,5 • 22D pg. 818 1,3,5 • Workbook Chp. 22 C & D: • 22C 1. A. Irms = 2000A B. I max = 2800 A C. P= 2.4 x 105 W • 3. I max = 3500A R = 22Ω • 6. ΔV= 25kV • 22D 2. ΔV1 =120V • 4. N= 2000 turns • 3. ΔV2 =.18 V ΔV1 =.0022 V • 7. I 1 = 55 A N= 360 turns

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