0195136047.pdf

194 TIME-DEPENDENT CIRCUIT ANALYSIS where VSIN is the name of the source, NODE- PLUS is the number identifying the positive node ...

PROBLEMS 195 L = 1 H iL(0) = 0 R = 300 Ω vs = 10 sin 300 t i(t) + − Figure P3.5.4 C = 5 μF vC(t); vC(0) = 0 t = 0 L^ = 2 mH R vs ...

196 TIME-DEPENDENT CIRCUIT ANALYSIS 3.5.10A high-pass filter circuit is shown in Figure P3.5.10. Using a PSpice program and PROB ...

PROBLEMS 197 the overall transfer function is given by TBS(s)=TLP(s)+THP(s) Using MATLAB, plot the bandstop response. 3.6.7An ex ...

4 Three-Phase Circuits and Residential Wiring 4.1 Three-Phase Source Voltages and Phase Sequence 4.2 Balanced Three-Phase Loads ...

4.1 THREE-PHASE SOURCE VOLTAGES AND PHASE SEQUENCE 199 rotor carries a field winding excited by the dc supply through brushes an ...

200 THREE-PHASE CIRCUITS AND RESIDENTIAL WIRING 120 ° 120 ° 120 ° 120 ° (^0120) ° 240 ° (a) (b) Volts eaa′ ebb′ Ebb′ Ecc′ c b a ...

4.1 THREE-PHASE SOURCE VOLTAGES AND PHASE SEQUENCE 201 VL−L Vph (a) (b) b b′ IL A C B a a′ c′ c Iph n N c′ c b b′ A a a′ Iph B C ...

202 THREE-PHASE CIRCUITS AND RESIDENTIAL WIRING (a) (c) A C B ebn ean VBN VAN V AB VCA VCN C VBC Bus or (b) B A N N b c a n ecn ...

4.2 BALANCED THREE-PHASE LOADS 203 A B Source Load VAB VBA A B IBA IAB IA A A IB B B IC C C Figure 4.1.5Notation using subscript ...

204 THREE-PHASE CIRCUITS AND RESIDENTIAL WIRING ZB Y–∆ transformation For the balanced case, A ZAB C B ZA ZC ZAB = ZAZB + ZBZC + ...

4.2 BALANCED THREE-PHASE LOADS 205 30 ° IB IC IA IC IA IB IL IC Z 10 ∠ + 20 ° Ω VCN = 120 ∠− 150 ° 20 ° 20 ° 20 ° 70 ° 60 ° (a) ...

206 THREE-PHASE CIRCUITS AND RESIDENTIAL WIRING IAB IBC ICA IC IA IAB IAC ICA IBC IL IB IC VBC = 100 ∠ 0 ° 45 ° 45 ° 30 ° 30 ° D ...

4.2 BALANCED THREE-PHASE LOADS 207 the same as multiplying the average power in any one phase by 3, since the average power is t ...

208 THREE-PHASE CIRCUITS AND RESIDENTIAL WIRING EXAMPLE 4.2.1 (a) A wye-connected generator is to be designed to supply a 20-kV ...

4.3 MEASUREMENT OF POWER 209 A B C Potential coil Current coil Three-phase load Single-phase wattmeter WC Single-phase wattmeter ...

210 THREE-PHASE CIRCUITS AND RESIDENTIAL WIRING When the load power factor is unity, corresponding to a purely resistive load, b ...

4.3 MEASUREMENT OF POWER 211 tanφ= √ 3 WA−WC WA+WC = √ 3 WB−WA WB+WA = √ 3 WC−WB WC+WB (4.3.10) The two-wattmeter method discuss ...

212 THREE-PHASE CIRCUITS AND RESIDENTIAL WIRING The total three-phase reactive power delivered to the load is √ 3 (WC−WA)= √ 3 ( ...

4.4 RESIDENTIAL WIRING AND SAFETY CONSIDERATIONS 213 The three-line cable coming out of the secondaries of the distribution tran ...