एक संतुलित स्टार संयोजित भार 4 + j3 Ω प्रति फेज 3-फेज, 230 V (फेज मान) आपूर्ति से जुड़ा है। सक्रिय शक्ति का मान ज्ञात कीजिए।

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SSC JE Electrical 9 Oct 2023 Shift 3 Official Paper-I
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  1. 19.13 kW
  2. 22.45 kW
  3. 15.34 kW
  4. 25.4 kW

Answer (Detailed Solution Below)

Option 4 : 25.4 kW
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संकल्पना

3ϕ स्टार-संयोजित भार  में सक्रिय शक्ति इस प्रकार दी जाती है:

जहाँ, 

गणना

दिया गया है, Z = 4 + j3 Ω

P = 25.4 kW

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