A 25 kW, 240 V self excited dc shunt generator has a field circuit resistance of 62.5 Ω, and an armature resistance of 0.05 Ω. When delivering rated current at rated speed and voltage, calculate % Efficiency when rotational losses are 1200W, and iron losses are 600W. Note that Copper losses must be calculated too. No Units!
A 25 kW, 240 V self excited dc shunt generator has a field circuit resistance of 62.5 Ω, and an armature resistance of 0.05 Ω. When delivering rated current at rated speed and voltage, calculate % Efficiency when rotational losses are 1200W, and iron losses are 600W. Note that Copper losses must be calculated too. No Units!
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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A 25 kW, 240 V self excited dc shunt generator has a field circuit resistance of 62.5 Ω, and an armature resistance of 0.05 Ω. When delivering rated current at rated speed and voltage, calculate % Efficiency when rotational losses are 1200W, and iron losses are 600W. Note that Copper losses must be calculated too. No Units!
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Step 1: Introduction about the given question
In this question, we need to determine the efficiency of the DC shunt generator.
Efficiency in % = × 100
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