ALTERNATING GENERATORS AND SYNCHRONOUS MOTORS. 11 
is” ~ 
x) oe saa > |e 
Yo” \ Sq PL f 
7 ; — f 
_ £2 - Aeprt8@ 
/ 
os. \ Z 
k ma. Me FS ' ? 
.s 
\ 
3 ~j 2 ‘ ‘f os. i, / 
5 ot ha 
| 
| 
ba * 
yo Ee | 
| 
Fie. 1.—DIMENSIONS oF A 175 KVA., 400 ReEvs., 40-CronE, 
3-PHAsSE ALTERNATOR. 
(105. Give the symbolical expression of the air gap reluctanee 
per pole and calculate same from the dimensions given 
in Question 104. 
106. Give the symbolical expression of the armature path relue- 
tanee and calculate same from the data given in Question 
104. 
10%. Give the symbolical expression of the reluctance of the field 
leakage path and ecaleulate same from the data given in 
Question 104. 
108. What is the symbolical expression of reluctance of the 
armature leakage path? Calculate same from the data 
given in Question 104 if the length of the inactive wire is 
a+ n+ 2l, = 15 inches. 
109. Give the simplified formula of the leakage factor and ealeu- 
late same from the data given in Question 104. 
110. Give the simplified form of the short cireuit current factor 
k, and caleulate same from the particulars given in answer 
to the previous six questions. 
