3-चरण मोटर में मापे गए वोल्टेज और धारा जैसा कि नीचे दिया गया वैसे हैं।

L1 : 230 V, 5 A

L2: 230 V, 4.5 A

L3: 230 V, 5.5 A

1 का शक्ति गुणक मानते हुए इनपुट शक्ति क्या है?

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ALP CBT 2 Electrician Previous Paper: Held on 22 Jan 2019 Shift 3
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  1. 1,150 वाट
  2. 1,265 वाट
  3. 1,035 वाट
  4. 3,450 वाट

Answer (Detailed Solution Below)

Option 4 : 3,450 वाट
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धारणा:

3 चरण मोटर की इनपुट शक्ति = 3 VP IP cos ϕ

जहाँ,

VP = चरण वोल्टेज

IP = चरण धारा

cos ϕ = शक्ति गुणक

विभिन्न चरण रेटिंग के लिए,

3 चरण मोटर की इनपुट शक्ति = Vp1 Ip1 cos ϕ + Vp2 Ip2 cos ϕ + Vp3 Ip3 cos ϕ

गणना:

3 चरण मोटर की इनपुट शक्ति = (230 X 5 X 1) + (230 X 4.5 X 1) + (230 X 5.5 X 1)

3 चरण मोटर की इनपुट शक्ति = 3,450 वाट
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