Delmar's Standard Textbook Of Electricity
7th Edition
ISBN: 9781337900348
Author: Stephen L. Herman
Publisher: Cengage Learning
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Chapter 33, Problem 2RQ
The voltages of a two-phase system are how many degrees out of phase with each other?
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8. = e.A nia +2.1 =
Find the maximum steady-state power capability of a system consisting of a
generator equivalent reactance of 0.4pu connected to an infinite bus through a
series reactance of 1.0 p.u. The terminal voltage of the generator is held at1.10 p.u.
and the voltage of the infinite bus is 1.0 p.u.
Chapter 33 Solutions
Delmar's Standard Textbook Of Electricity
Ch. 33 - What are the three basic types of split-phase...Ch. 33 - The voltages of a two-phase system are how many...Ch. 33 - How are the start and run windings of a...Ch. 33 - In order to produce maximum starting torque in a...Ch. 33 - What is the advantage of the capacitor-start...Ch. 33 - On average, how many degrees out of phase with...Ch. 33 - What device is used to disconnect the start...Ch. 33 - Why does a split-phase motor continue to operate...Ch. 33 - How can the direction of rotation of a split-phase...Ch. 33 - If a dual-voltage split-phase motor is to be...
Ch. 33 - When determining the direction of rotation for a...Ch. 33 - What type of split-phase motor does not generally...Ch. 33 - What type of single-phase motor develops the...Ch. 33 - Prob. 14RQCh. 33 - Prob. 15RQCh. 33 - When a repulsion-start induction-run motor reaches...Ch. 33 - Prob. 17RQCh. 33 - What causes the magnetic field to rotate in a...Ch. 33 - How can the direction of rotation of a shaded-pole...Ch. 33 - Prob. 20RQCh. 33 - Prob. 21RQCh. 33 - Prob. 22RQCh. 33 - Prob. 23RQCh. 33 - Prob. 24RQCh. 33 - What is the principle of operation of a stepping...Ch. 33 - What does the term bifilar mean?Ch. 33 - Prob. 27RQCh. 33 - When a stepping motor is connected to AC power,...Ch. 33 - What is the synchronous speed of an eight-pole...Ch. 33 - How can the holding torque of a stepping motor be...Ch. 33 - Why is the AC series motor often referred to as a...Ch. 33 - Prob. 32RQCh. 33 - How is the direction of rotation of the universal...Ch. 33 - Prob. 34RQCh. 33 - Prob. 35RQCh. 33 - Prob. 36RQCh. 33 - Prob. 1PA
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- B) A 60-Hz generator is supplying 60% of P max to an infinite bus through a reactive network. A fault occurs which increases the reactance of the network between the generator internal voltage and the infinite bus by 400%. When the fault is cleared, the maximum power that can be delivered is 80% of the original maximum value. Determine the critical clearing angle for the condition described.arrow_forwardIn the circuit shown, let Vs-9, R₁-8, R2-2, and R3-4. Use Nodal analysis to determine the current lo. In particular find: V2= 10= A The relative tolerance for this problem is 5 %. R₁ V₁ + ww R₂ Vs V₂ 21 x R3arrow_forward1. Choose all nodes that must be included, if any, to construct the supernode for Nodal analysis. OV1, V3 OV1, V2 ○ V2, V3 OV1, V2, V4 OV1, V2, V3 O V2, V3, V4 2. Write KCL equation (Nodal equation) at super-node. Write your expression in terms of node voltages V1, V2, V3 and V4 and of the form (G11 V1+G12 V2+G13 V3+G14 V4 = 11), then enter the corresponding values: At super-node KCL: 1/Q G11 1/0 G12 1/Ω G13 1/Q G14 A 3. Use the above equation, the circuit and and super-node inner expression to calculate V3 and then lo : V3= V 10 = R3 Vst + A V₁ + VS2 V₂ V3 w W R₁ R₂ R4 ww R5 V4 V$3arrow_forward
- Enter the matrix values (numerical) to solve for voltages at nodes v1, and v2, for the circuit shown, using Nodal equations. In the matrix, row 1, and row 2, correspond to node v1, and node v2 current expressions, respectively. Let Is1=14, Is2=7, R₁=5, R₂-8, R3=2, and R4-5. [G11 G12] [Vi₁ The matrix values are shown here: = G21 G22 [V2] [41] [12] {Hint: As discussed in class and to avoid sign errors, assume nodal currents are locally defined at each node (leaving) and use node labeling as indicated in the circuit. } The relative tolerance for this problem is 5%. VI R2 ww Isl 12 NODE v1 G11 G12 RI 1/Q 1/0 A 4= NODE v2 G21- 1/Q G22 1/0 12 W A === www R3 R4 www Use Cramer's rule (matrix), substitution, or any other method to calculate the voltages: v1 = V v2= V Is2arrow_forwardOnly expert should attemptarrow_forwardFor the circuit shown below, let l₁ = 9, 1₂ = 14, 13= 12, R₁ = 3, R₂ = 8, and R3 = 5. Use nodal equations to determine V1, V2 and I, as follows: • Consider Node 1, obtain a nodal equation in terms of V₁ and V₂ voltages. Simplify your equation to the format 1V1 + b,V₂ = c, then enter the corresponding values of coefficients b₁ and c₁ 1. b₁ =( C₁ = • Now consider Node 2, obtain a second nodal equation in terms of V₁ and V2 voltages. Simplify your equation to the format -1V₁+b2V2=c2 then enter the corresponding values of coefficients b₂ and c₂ 2. (b₂ = value.) ,၄၇ = - 3. Use (1) and (2) to determine V₂ = 4. Determine V₁ 5. Determine | = i 12 V₁ R1 20 www R2 ww I The relative tolerance for this problem is 5%. R3 This is not a decimal or integer www i3arrow_forward
- For the circuit shown, let V1 = 19 V, Vs2 = 76 V, R₁ = 9, R2 = 9, and R3 = 7. Use Nodal analysis to determine the voltage V2 and the current lo, choose the closet values: V2- 4.788 10 = ○ 2.28 11.978 17.761 35.522 23.957 -9.146 8.32 10.173 A O-7.435 O-5.783 10.531 V sl ་ ་ ་ ན ་་་ ་ ་ ་ ་ ་ ་ ་ ་ +1 ww R₁ R₂ ww R3 Io +1 VS2arrow_forwardNO AI PLEASEarrow_forwardNO AI PLEASEarrow_forward
- Problem 4 Consider the following system. In the figure, y(t) denotes the displacement of the mass and u(t) denotes the force applied to the mass. b1 u(t) y(t) + b2 M 0000 0000 K1 K2 a) Find the differential equation model of the system. b) Find the state-space model for the system. Write x, A, B, C and D clearly in your answer.arrow_forwardNO AI PLEASEarrow_forwardNot use ai pleasearrow_forward
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