1. Calculate the reactance of generator G1 (referred to 34.5 kV) and the reactance of generator G2 (referred to 34.5 kV). Find Short Circuit breaking capacity (powers) of circuit breakers, A1, A2 and A3. (μ=0.8).Xcu=56 m/mm²BLinelT3881-10|-|·A2Line234.5 kVG1G2T1T2A1A34.5 kVG1 generator : 10 kV, 30 MVA, Ed=%12G2 generator: 10 kV, 40 MVA, Ed=%12T1 transformer: 10/34.5 kV, 35 MVA, Uk=%8T2 transformer: 10/34.5 kV, 45 MVA, Uk=%9Line1 and Line2: X=0.12 2/km, q=240 mm², L=8 kmT3 transformer: 34.5/6 kV, 25 MVA, uk=%6Line3: X=0.14 02/km, q=95 mm², L=4 km6 kVLine3DA36 kv

The given single line diagram is shown below. G1 generator; 10 kV, 30 MVA, εd=%12=0.12 per unit. G1…

Answered: 1. Calculate the reactance of generator…

1. Calculate the reactance of generator G1 (referred to 34.5 kV) and the reactance of generator G2 (referred to 34.5 kV).

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter7: Parallel Circuits

Section: Chapter Questions

Problem 4PP: Using the rules for parallel circuits and Ohmslaw, solve for the missing values....

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Concept explainers

Compensation Techniques

The compensation techniques are the methods that are employed in the electrical control systems to enhance the performance of the system. The performance are generally affected by the factors like lag in the compensating devices, slow response of the system of the components like sensors used in the control system. The basic compensation technique involves lag compensation, lead compensation or the combination of the both.

Question

1. Calculate the reactance of generator G1 (referred to 34.5 kV) and the reactance of generator G2 (referred to 34.5 kV).

Find Short Circuit breaking capacity (powers) of circuit breakers, A1, A2 and A3. (μ=0.8).
Xcu=56 m/mm²
B
Linel
T3
881-10|-|·
A2
Line2
34.5 kV
G1
G2
T1
T2
A1
A
34.5 kV
G1 generator : 10 kV, 30 MVA, Ed=%12
G2 generator: 10 kV, 40 MVA, Ed=%12
T1 transformer: 10/34.5 kV, 35 MVA, Uk=%8
T2 transformer: 10/34.5 kV, 45 MVA, Uk=%9
Line1 and Line2: X=0.12 2/km, q=240 mm², L=8 km
T3 transformer: 34.5/6 kV, 25 MVA, uk=%6
Line3: X=0.14 02/km, q=95 mm², L=4 km
6 kV
Line3
D
A3
6 kv

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