Sagot :
Answer:
Option 2:
232.56 VL=30 Amp
ER=0.30
V=1V V-220V
R=0.050
EMF = E
R-2000
Here, V₁ = Terminal Voltage (V)
Line Current (A) R = Series field resistance (0)
R₂ = Armature resistance (0)
Rehf Shunt field resistance (0)
Ish Shunt current (A) 1₁ = Armature current (A)
Vb Brush voltage drop (V)
V₁ - Armature terminal voltage (V)
Formula:
Iah =
E = V₁ +1₂R₂ +2Vb
Calculation:
Given:
V₂ = 220 V
= 30 A
Ref = 0.30
R₂ = 0.05 0
Rsht 200 0
V₂ = 1 V
V₁ = V₁ + 1₁Rgt
V₁ = 220 + 30 x 0.3
V₂ = 229 V
Ish = R
= 20 = 1.145 A
1₂1.145 +30=31.145 A. EgVa+laRa +2Vb
E = 229 +31.145 × 0.05 + 2×1
Eg232.55725 V
: Generated EMF = 232.55725 V