For the three-bus system shown in figure below: • The line from bus 1 to bus 2 has an imped- ance Z = 0.05+j0.1 The other two line (1-3 and 2-3) both have an impedance Z = j0.25 The load at bus 3 is consuming 150 MW and 87 Mvar wwwwww The generator at bus 1 has a voltage set- point of 1.03 per-unit о Bus 1 Bus 2 4-j12 -4+j8j4 Ybus = -4+j8 4j12 j4 j4 j4 -j8. Bus 3 Given the Y-bus above, with bus 1 as slack bus and buses 2 and 3 as PQ buses, write the real and reactive power balance equations for bus 3 only, in terms of 02, 03, V2 and V3. You do not need to find the Jacobian or solve the equations. Include the load P and Q.

For the three-bus system shown in figure below: • The line from bus 1 to bus 2 has an imped- ance Z = 0.05+j0.1 The other two line (1-3 and 2-3) both have an impedance Z = j0.25 The load at bus 3 is consuming 150 MW and 87 Mvar wwwwww The generator at bus 1 has a voltage set- point of 1.03 per-unit о Bus 1 Bus 2 4-j12 -4+j8j4 Ybus = -4+j8 4j12 j4 j4 j4 -j8. Bus 3 Given the Y-bus above, with bus 1 as slack bus and buses 2 and 3 as PQ buses, write the real and reactive power balance equations for bus 3 only, in terms of 02, 03, V2 and V3. You do not need to find the Jacobian or solve the equations. Include the load P and Q.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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The given zero sequence matrix is known. .At bus 1 there is a single generator connected with sequence reactance O of. j2 ohms. At bus 2, there are two motors connected, M1 and M2, each with zero sequence reactance of j2 ohms. j2 ohms zero sequence reactance. Motor M2 at bus 2 is solidly grounded.. For these conditions: a. Determine whether or not the generator at bus 1 is grounded. b. Establish the value of the grounding of motor M1. ZBUS (0) Z11 =j 11.42857 Z12 =j 1.42657 Z22 j1.42857 =
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A 600 KVA generator with X"a = 0.22 per unit is connected to a bus through a circuit breaker, as shown in the following figure. Connected through circuit breakers to the same bus are three synchronous motors rated 200 KVA, 2.5 KV, 1.0 power factor, with X"a = 0.15 per unit. The motors are operating at full load, unity power factor and rated voltage, with the load equally divided among the machines. (a) Find the rated symmetrical short-circuit current in Amperes, which must be interrupting breakers A and B for a fault at point P. Simplify the calculations by neglecting the Prefault current. M. GHA B
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