एक 6-ध्रुवीय प्रेरण मशीन एक प्रेरण जनरेटर के रूप में कार्य कर रही है। यदि आपूर्ति आवृत्ति 60 Hz है और रोटर धारा आवृत्ति 5 Hz है, तो रोटर की गति ज्ञात कीजिए।

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MPPGCL JE Electrical 28 April 2023 Shift 2 Official Paper
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  1. 1400 rpm
  2. 1300 rpm
  3. 1100 rpm
  4. 1200 rpm

Answer (Detailed Solution Below)

Option 2 : 1300 rpm
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संप्रत्यय

प्रेरण मोटर में प्रेरित EMF की आवृत्ति इस प्रकार दी गई है:

\(f_r=sf_s\)

जहाँ, fr = रोटर प्रेरित आवृत्ति

fs = आपूर्ति आवृत्ति

s = स्लिप

3ϕ प्रेरण जनरेटर की गति इस प्रकार दी गई है:

\(N_r=N_s(1+s)\)

\(N_r={120f_s\over P}(1+s)\)

गणना

दिया गया है, fr = 5 Hz

fs = 60 Hz

\(5=s\times 60\)

\(s={1\over 12}\)

\(N_r={120\times 60\over 6}(1+{1\over 12})\)

\(N_r=1300 \space rpm\)

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