एकल फेज ट्रांसफॉर्मर के लिए, 75% भार पर दक्षता अधिकतम होती है, तब 

This question was previously asked in
PGCIL DT Electrical 12 March 2022 (NR II) Official Paper
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Answer (Detailed Solution Below)

Option 4 :
Free
PGCI DT EE Power System Mock Test
20 Qs. 20 Marks 15 Mins

Detailed Solution

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सही उत्तर विकल्प 4):  है

संकल्पना:

ट्रांसफॉर्मर अधिकतम दक्षता तब देगा जब उसका कॉपर क्षय, आयरन क्षय के बराबर होगा। पूर्ण भार के कुछ अंश x पर दक्षता अधिकतम होती है।

जहाँ 

x दक्षता है

 W= आयरन क्षय (वाट में)

Wcu = कॉपर क्षय (वाट में)

गणना:

दिया गया है

x = 0.75

 = (0.75)2

= ( )2

= (  )2

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