ALTERNATING GENERATORS AND SYNCHRONOUS MOTORS. 209 
THE RELUCTANCE OF FIELD LEAKAGE PATH: 
Be. 0.313 
1 4exf , 4dxf ,4bxd 
OAT 
n m m+b 
THE RELUCTANCE OF ARMATURE LEAKAGE PATH: 
pis 0 313 
2 4txlxo , 4txr(t-+0) 
sxTr TXO Lid ea 
r 
THE LEAKAGE FACTOR: 6 =1+ x 
1 
7 
THE SHORT CIRCUIT CONSTANT: kz; = 1+ nt 
2 
THE ARMATURE BACK AMPERE TURNS: A, = 0.9 X Z XC. in 
single phase alternators; A, = 1.41 X Z x C. in two phase 
alternators; A, = 2.12 X Z X C. in three phase alternators. 
THE EQUIVALENT FIELD AMPERE TURNS: A,; = ks X Ap. 
THE FUNDAMENTAL EQUATION OF FIELD WINDING: 
SU, M2nx LL; 8 
e= . sahil X=—° 
qi: 10 
THE EXCITATION ENERGY: e X C, = Wn. 
THE COOLING SURFACE OF FIELD COILS: 0, = LZ, Xd X 2p+ 
2b X f X 2p. 
THE TEMPERATURE RISE OF ROTATING FIELD COILS: J, = 
Wn 
Jonst. X —, 
C 0,(1+0.0002 x V) 
ZXL,., 8 
THE RESISTANCE OF ARMATURE PHASE WINDING: ——— 10” 
2 
THE ENERGY CONSUMPTION IN ARMATURE WINDING: m X C? x 
ZxXL, 8 
———* —. = W,. 
”q, 10 
THE HYSTERESIS AND EDDY CURRENT LOSSES IN TEETH: 
Sx¢xrxlX0.9 X 0.28 (wa t+ we) = Wr 
THE HYSTERESIS AND EDDY CURRENT LOSSES IN ARMATURE CORE? 
(D,—k) ® XkX1X 0.9 X 0.28 (wn + we) = We 
