DC मशीन में, माना ϕ प्रति ध्रुव फ्लक्स हो, ωm आर्मेचर की चाल (rad/s में) हो, Nc आर्मेचर में कुंडली के फेरों की संख्या हो और P ध्रुवों की संख्या हो। उस मशीन में औसत कुंडली EMF क्या होगा?

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SSC JE EE Previous Paper 12 (Held on: 24 March 2021 Evening)
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  1. Ea = ϕωmNcP

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संकल्पना:

एक जनरेटर द्वारा उत्पन्न E.M.F. है:

जहाँ, 

ϕ = फ्लक्स

Z = चालकों की संख्या

N = RPM में चाल

P = ध्रुवों की संख्या

A = समान्तर पथों की संख्या

अनुप्रयोग:

चूँकि समांतर पथों की संख्या नहीं दी गई है, अत: A = 1

.....(1)

ωm = चाल (rad/sec में)

ωm = 2πN/60

N = 30ω/ π ......(2)

Z = 2 × Nc .......(3)

Nc = कुंडली में फेरों की संख्या

(1), (2) और (3) समीकरण से

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