2.for the system shown in figure. WhenThree phase to ground bolted Short CircuitOccurs on line 2. at point of two cycles laterThe fault extenguishes by it self. Dine to relay misoperation all circuit breakers ✔main closed.Determine whether stability is or isn't anddetermine the maximum power angle. In inertiaConstant of generator is 3 per unit. Wpin = 1 in swingequation, F=50Hz.'Assume The short Circuit lasts longer than 2Cycles. Calculate The critical clearing angle.jo.joiljo.15j0.24038336.241E1.1.2 P.jo.z-32-다음-32 jos infintbusFja-15V=120

Step 1: Step 2: Step 3: Step 4:

Answered: 2. for the system shown in figure. When…

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 =
Suppose you have been assigned to find the specs of Merz-Price Current Protection scheme of A star Connected 13.8 KV Synchronous Generator installed in the Power house of Tarbella Dam. The Synchronous reactance of generator to be 1.4 pu/phase & negligible resistance. The above protection scheme is expected to operate when the out of balance current exceeds 10% of the full-load current. If the neutral point to be earthed via a resistor of 2 ohm, determine the percentage portion of the stator winding which will remain 100% protected.
A hydro powered 50 MVA generator, with a synchronous reactance 0.33 p.u., delivers 40 MW over a transmission line of 0.15 p.u. reactance to an infinite system. A 3-phase short circuit transient fault occurs on the busbar between the generator and transmission line. Given that the generator emf is 1.4 p.u. prior to and during the fault and all reactances are to a 50 MVA base: Sketch the single line schematic diagram of the system. Determine the maximum load angle the generator can swing to without losing stability. i) ii) iii) iv) Sketch the corresponding power-angle curve for the system showing the accelerating and decelerating areas. Calculate the critical clearing angle of the system to keep its stability.
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The figure shows the single line diagram of a single machine infinite bus system. O Infinite bus The inertia constant of the synchronous generator H = 5 MW-s / MVA. Frequency is 50 Hz. Mechanical power is 1 pu. The system is operating at the stable equilibrium point with rotor angle ō equal to 30°. A three phase short circuit fault occurs at a certain location on one of the circuits of the double circuit transmission line. During fault, electrical power in pu is Pmax sin ō. If the values of ō and do / dt at the instant of fault clearing are 45° and 3.762 radian/s respectively, then Pmax (in pu) is_

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