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4. A 300 MVA, 20 kV three-phase generator has a sub transient reactance of 20%. The generator supplies a synchronous motors and static load over 64-km transmission line having transformers at both ends, as shown in Fig. 1.11. The motors, all rated 13.2 kV, are represented by just two equivalent motors. Rated inputs to the motors are 200 MVA and 100 MVA for M1 and M2, respectively. For both motors X" = 20%. The 3-phase load of 60 kVA, 0.6 p.f. load at 10.5 kV is connected at bus. The three phase transformer T1 is rated 350 MVA, 230/20 kV with leakage reactance of 10%. Transformer T2 is composed of three single-phase transformers each rated 127/13.2 kV, 100 MVA with leakage reactance of 10% Series reactance of the transmission line is 0.5 Q/km.) Draw the reactance diagram, with all reactances marked in per-unit. Select the generator

4. A 300 MVA, 20 kV three-phase generator has a sub transient reactance of 20%. The generator supplies a synchronous motors and static load over 64-km transmission line having transformers at both ends, as shown in Fig. 1.11. The motors, all rated 13.2 kV, are represented by just two equivalent motors. Rated inputs to the motors are 200 MVA and 100 MVA for M1 and M2, respectively. For both motors X" = 20%. The 3-phase load of 60 kVA, 0.6 p.f. load at 10.5 kV is connected at bus. The three phase transformer T1 is rated 350 MVA, 230/20 kV with leakage reactance of 10%. Transformer T2 is composed of three single-phase transformers each rated 127/13.2 kV, 100 MVA with leakage reactance of 10% Series reactance of the transmission line is 0.5 Q/km.) Draw the reactance diagram, with all reactances marked in per-unit. Select the generator

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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Select generator rating as base value
4. A 300 MVA, 20 kV three-phase generator has a sub transient reactance of 20%. The generator supplies a synchronous motors and static load over 64-km transmission line having transformers at both ends, as shown in Fig. 1.11. The motors, all rated 13.2 kV, are represented by just two equivalent motors. Rated inputs to the motors are 200 MVA and 100 MVA for M1 and M2, respectively. For both motors X" = 20%. The 3-phase load of 60 kVA, 0.6 p.f. load at 10.5 kV is connected at bus. The three phase transformer T1 is rated 350 MVA, 230/20 kV with leakage reactance of 10%. Transformer 12 is composed of three single-phase transformers each rated 127/13.2 kV, 100 MVA with leakage reactance of 10% Series reactance of the transmission line is 0.5 Q/km.) Draw the reactance diagram, with all reactances marked in per-unit. Select the generator rating T₁ T₂ Р M₁ m TO H Y≤ Y D 2 Transformer کے Tr line Load M₂
Transcribed Image Text:4. A 300 MVA, 20 kV three-phase generator has a sub transient reactance of 20%. The generator supplies a synchronous motors and static load over 64-km transmission line having transformers at both ends, as shown in Fig. 1.11. The motors, all rated 13.2 kV, are represented by just two equivalent motors. Rated inputs to the motors are 200 MVA and 100 MVA for M1 and M2, respectively. For both motors X" = 20%. The 3-phase load of 60 kVA, 0.6 p.f. load at 10.5 kV is connected at bus. The three phase transformer T1 is rated 350 MVA, 230/20 kV with leakage reactance of 10%. Transformer 12 is composed of three single-phase transformers each rated 127/13.2 kV, 100 MVA with leakage reactance of 10% Series reactance of the transmission line is 0.5 Q/km.) Draw the reactance diagram, with all reactances marked in per-unit. Select the generator rating T₁ T₂ Р M₁ m TO H Y≤ Y D 2 Transformer کے Tr line Load M₂
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