8- The synchronous impedance of a single phase alternator, for the same excitation current, is calculated by the formula:a) Zg=ЕоIscc) Z8 = Eox IscЕоb) Zg==¹sc9- The adjacent figure represents the Behn-Eschenburg diagram of the alternator in case of:a) resistive loadb) inductive loadc) capacitive loadE17LX₂VLR₂10-A 3-phase alternator has the following characteristics:Number of poles 2p= 4, total number of stator conductors is 330, frequency f= 50 Hz, flux per pole = 20 mWb andKapp's coefficient K, 2.1. The induced electromotive force per phase is equal to:c) 231 Va) 2310 Vb) 1386 V

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8- The synchronous impedance of a single phase alternator, for the same excitation current, is calculated by the formula: Eo a) Zga b) Zg=E0 c) Zg = Eox Isc Isc 17, 1X₂ V LR₂ Number of poles 2p = 4, total number of stator conductors is 330, frequency f= 50 Hz, flux per pole = 20 mWb and Kapp's coefficient K, 2.1. The induced electromotive force per phase is equal to: c) 231 V a) 2310 V b) 1386 V 9- The adjacent figure represents the Behn-Eschenburg diagram of the alternator in case of: b) inductive load a) resistive load c) capacitive load 10- A 3-phase alternator has the following characteristics:

8- The synchronous impedance of a single phase alternator, for the same excitation current, is calculated by the formula: Eo a) Zga b) Zg=E0 c) Zg = Eox Isc Isc 17, 1X₂ V LR₂ Number of poles 2p = 4, total number of stator conductors is 330, frequency f= 50 Hz, flux per pole = 20 mWb and Kapp's coefficient K, 2.1. The induced electromotive force per phase is equal to: c) 231 V a) 2310 V b) 1386 V 9- The adjacent figure represents the Behn-Eschenburg diagram of the alternator in case of: b) inductive load a) resistive load c) capacitive load 10- A 3-phase alternator has the following characteristics:

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

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.7MCQ

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Draw a complete equivalent circuit of one phase only of a synchronous generator. Then draw the phasor diagram for a unity power factor. Assume the phase resistance is ignored
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The reactive power output of an alternator is limited by load angle True False
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