A shunt generator has the following open-circuit characteristic at 800 r.p.m. Field amperes : 0.5 1.0 1.5 2.0 2.5 3.0 3.5 E.M.F. Volt : 54 107 152 185 210 230 245 Armature and shunt field resistances are respectively 0.1 Ω and 80 Ω. The terminal p.d. falls to 175 V when the armature current is 100 A. Find the O.C. volts and the volts lost due to (i) reduction in the field current (ii) armature resistance (iii) armature reaction.

A shunt generator has the following open-circuit characteristic at 800 r.p.m. Field amperes : 0.5 1.0 1.5 2.0 2.5 3.0 3.5 E.M.F. Volt : 54 107 152 185 210 230 245 Armature and shunt field resistances are respectively 0.1 Ω and 80 Ω. The terminal p.d. falls to 175 V when the armature current is 100 A. Find the O.C. volts and the volts lost due to (i) reduction in the field current (ii) armature resistance (iii) armature reaction.

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 2.24P: A source supplies power to the following three loads connected in parallel: (1) a lighting load...

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