In a 3-ϕ induction motor, the ratio Pi : Pc : Pg is equal to:

(Where Pi = Rotor Input, PC = Rotor Copper Losses, and Pg = Gross Mechanical Output)

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MPPGCL JE Electrical 19 March 2019 Shift 2 Official Paper
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  1. s : (1 - s) : 1
  2. 1 : (1 - s): s
  3. 1 : s : (1 - s)
  4. (1 - s) : 1 : s

Answer (Detailed Solution Below)

Option 3 : 1 : s : (1 - s)
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Detailed Solution

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Power flow in Induction Motor

qImage6730fb5c099232e35a8d6017

\(P_g:P_c:P_d=1:s:1-s\)

where, Pg = Air gap Power

Pc = Rotor copper loss

Pd = Developed Power 

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