A three-phase, 500-kVA, 480-V, 60-Hz, Y-connected synchronous generator gave these test results at rated speed: (1) Open

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A three-phase, 500-kVA, 480-V, 60-Hz, Y-connected synchronous generator gave these test results at rated speed:

(1) Open circuit voltage at rated field current = 560 V_LL

(2) Short circuit current at rated field current = 305 A.

When cold at 20°C, the average dc resistance of three armature phase coils measured by ohmmeter was 0.20 Ω. Determine the armature ac resistance and synchronous reactance per phase at an operating temperature of 90°C.

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Introduction To Electrical Power And Power Electronics

ISBN: 9781466556607

1st Edition

Authors: Mukund R. Patel

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Question Posted: Dec 01, 2023 09:31 AM

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A three-phase, 500-kVA, 480-V, 60-Hz, Y-connected synchronous generator gave these test results at rated speed: (1) Open

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1 Calculate the synchronous impedance per phase The synchronous impedance per phase Zs can be calcul...View the full answer

Introduction To Electrical Power And Power Electronics

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