Electric Motor Control
10th Edition
ISBN: 9781133702818
Author: Herman
Publisher: CENGAGE L
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Chapter 37, Problem 4SQ
To determine
Choose the correct option that would not cause the following problem: when the tank is overflowing, the wound rotor motor has not started and the alarm has not sounded.
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Refer to Exhibit #15. On the kitchen pion for the northwest comer of room 132, what does the number 29, its associated electrical symbol, and the 46" AFF indicate?
Q1/For the unity-feedback system where G (s)
=
K(s+ 1)(s+ 10)
(s+4) (s-6)
Sketch the root locus and find the value of K for which the system is closed-loop stable.
Also find the break-in and breakaway points.
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Electric Motor Control
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- The switch K at Figure 4 is closed at t = 0.2 second. Assuming iL(0) = 0, Find iL(t). 10 Ω w i₁(t) 2ix 20 Ω 2H 10u(t) t = 0.2 s Figure 4 Karrow_forwardThe voltage source in the circuit of Fig. P12.31 is, givenby us(t) = [10+5u(t)] V. Determine iL(t) for t ≥ 0, given thatR1 = 1 W, R2 = 1 W, L = 2 H, and C = 1 F.arrow_forwardDon't use ai to answer I will report you answerarrow_forward
- Determine iL(t) in the circuit of Fig. P12.25, given thatbefore closing the switch uC(0−)=12 V. Also, the element valuesare R = 2 W, L = 1.5 H, and C = 0.5 F.arrow_forwardThe switch in Figure 5 is closed at t = 0 second. Find the voltage of the capacitor, vc, for t> 0. 8Ω t=0 ww + 0.15H + 24U(-t) 80- 2.5mF VC 2A 0.1H Figure 5arrow_forwardQ1/For the unity-feedback system where G (s) = K(s+ 1)(s+ 10) (s+4) (s-6) G Sketch the root locus and find the value of K for which the system is closed-loop stable. Also find the break-in and breakaway points.arrow_forward
- 12.22 Repeat Problem 12.21, but assume that the switch hadbeen open for a long time and then closed at t = 0. Set the dcsource at 12 mV and the element values at R0 = 5 W, R1 = 10 W,R2 = 20 W, L = 2 H, and C = 0.4 F. question 21(Determine iL(t) in the circuit of Fig. P12.21 for t ≥ 0,given that the switch was opened at t = 0 after it had been closedfor a long time, us = 12 mV, R0 = 5 W, R1 = 10 W, R2 = 20 W,L = 0.2 H, and C = 6 mF.)arrow_forwardIn Figure 1, by considering reference located at node 4, the voltage nodes will be: V1=4, V2= -5, V3=0.5 volts. If we change the location of reference to node 3, find the values for V1, V2, V4, ix, Vo, Vx and power produced by the current sources without conducting detailed node or mesh analyses. 10 www 4A ww 44 4Q 802 w + Vo 4Q 2 3 3ix Figure 1 ww 4Q 5 W4 1.50arrow_forwardIn the Figure 3 a) Find the values for Vi and ix using nodal analysis. b) Find the produced power by the current source. 50 10Ω www 37A 10Ω 20 5 ix V₁ 200 ix Figure 3 ww 100 + 4V1arrow_forward
- 2) By series and parallel combinations find the equivalent capacitance for this circuit. ||15€ Cequivalent -66 6f 6E 12Farrow_forwardQ2/For the unity-feedback system where G(s) = K/[s (s+3) (s+ 5)], find the range of gain, K, for stability, instability, and the value of gain for marginal stability. For marginal stability also. Use the Nyquist criterion.arrow_forward240 Q3/Q1/For the system G(s)= H(s)=1 (s+2)(s+4)(s+5) a. Draw the Bode log-magnitude and phase plots. b. Evaluate gain margin, phase margin, zero dB frequency, and 180° ¿B=2020arrow_forward
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