systems.(2)3. An electric train has a schedule speed of 25 kmph between stations 800 m apart. The duration of stop is20 seconds, the maximum speed is 20 percent higher than the average running speed and the brakingretardation is 3 kmphps. Calculate the rate of acceleration required to operate this service.Diel(2)

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Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter11: Transient Stability

Section: Chapter Questions

Problem 11.1P

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Similar questions

Critical clearing time of a fault in power system is related to steady state stability limit True False
The initial load angle at steady-state stability is δ0 and the related mechanical power, P0. With the occurrence of a transient fault the load angle advances to δ1 with a corresponding electrical power of P1. After the successful clearance of the fault the load angle moves to δ2 and electrical power, P2. Use the given information to answer the following questions. Derive equations for: i)the accelerating area. ii)the decelerating area iii)the critical clearing angle
Explain the concept of load shedding and its importance in preventing system instability during periods of high demand or faults. What strategies and algorithms are used for load shedding in power systems?
Current setting of a relay is used to set the operating time of relay during fault condition True False
Please explain with the help of diagram.
Protective relays cannot prevent the faults in power system O True False
What is load shedding, and how does it prevent system overloads during peak demand periods?
Q3. In a % differential scheme, figure shown below, the two CTs have nominal ration of 100:1. The CT errors for a through fault current of 5000 A are as following: CT1 CT2 Ratio error: 10% 10% Phase angle error: 5% -5% Compute following: i) The spill current of the OC relay in the spill path. ii) If the relay is 50% biased, examine whether relay will trip or remain stable CT, CT Ir CB C.B. メx Egu inder Ne
a) Explain how tripping time affect the entire electrical switchgear operation b) in your opinion Is it important in Electrical Power System to measure the fault (time) Why ? c) What is the importance of combining the measuring relay and tripping relay.? d)Explain What is the effect of using intermediate relay (RXME-1) in relay operation.? e) In your own Idea, Is it necessary to combine intermediate relay and measuring relay with another relay Why?
The __________________ condition of the power system gives the power flow solutions when the transient behavior of the system is to be studied. a-Initial b-Short Circuit c-Stability d-Transient
Below figure shows a single line diagram of a portion of a radial distribution system. The PS of Relay 3 (R3) is 75% of CT Secondary and time setting multiplier is given 0.1. The CT ratio is given with each relay and fault current of each in bus bar is given in figure. PS for R1 and R2 is set at 100%. Determine the operating time of each relay. Consider 0.25 sec for time coordination time interval. R30.297 R2 = .475 R1 = .654 A B C ID 1000/1 R₁ 10,000 A 800/1 800/1 M R₂ R₁ 8000 A 6000 A 5000 A
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