(McGraw-Hill) (Instructors Manual) Electric Machinery Fundamentals 4th Edition Episode 2 Part 6 ppt
(McGraw-Hill) (Instructors Manual) Electric Machinery Fundamentals 4th Edition Episode 2 Part 6 ppt
... holding the infinite bus is 460 -V.
29 8
()() ()
()()
δδ
2 sin
40.0 62 . 0
40.0 62 . 0
2
7 62 1 3
sin
62 . 0
98907 62 1 3
2
−
+=P
MW2 sin 3.77 sin 7. 364
δ
δ
+=P
A plot of power ... X
XX
A
d
dq
dq
=+
−
33
2
2
φφ
δδ sin sin 2
()() ()
()()
°
−
+°5=
1 .22 1 sin
18. 025 .0
18. 025 .0
2
2773
.61 sin
25 .0
322 27...
(McGraw-Hill) (Instructors Manual) Electric Machinery Fundamentals 4th Edition Episode 2 Part 1 pptx
...
()
2
2
2
205,9 32 /
38,774
0. 321 / 0.7 02
Rs
Rs
=
++
()
2
22
0. 321 / 0.7 02 5.311 /Rs Rs
++=
()
2
22 2
0.103 0 .6 42 / / 0.7 02 5.311 /Rs Rs Rs
+++=
2
22
4 .66 9 0.7 02 0
RR
ss
...
()()
2
TH 2
ind
22
sync TH 2 TH 2
3/
/
VRs
RRs X X
τ
ω
=
+++
()( )
()( )( )
2
ind
22
3 26 2 V 0.1 72 /1.9 62
188.5 rad/s 0. 321 0.1 72 /1...
(McGraw-Hill) (Instructors Manual) Electric Machinery Fundamentals 4th Edition Episode 2 Part 4 pptx
...
()()
22
22
/
/
M
F
M
Rs jX jX
Z
R s jX jX
+
=
++
()()
100 2. 40 60
2. 96 2. 46
10 02. 4 060
F
jj
Zj
jj
+
==+Ω
++
()
()
()
22
22
/2
/2
M
B
M
R s jX jX
Z
R s jX jX
=
−+ +
()()
1 .28 2 2. 40 ... jX
+
=
++
(
)
(
)
50 2. 40 60
28 .15 24 .87
50 2. 40 60
F
jj
Zj
jj
+
==+Ω
++
()
()
()
22
22
/2
/2
M
B
M
R s jX jX
Z
R s jX jX
=
−+ +
27 2...
(McGraw-Hill) (Instructors Manual) Electric Machinery Fundamentals 4th Edition Episode 2 Part 7 ppt
... speed of 1800 r/min, is given in tabular form below:
E
A
, V 8.5 150 180 21 5 22 6 24 2
I
F
, A 0.00 0.80 1.00 1 .28 1.44 2. 88
(a) What is the speed of this motor when it is running at the rated ... Subfractional Horsepower Electric Motors. New York: McGraw-
Hill, 1970.
4. Werninck, E. H. (ed.). Electric Motor Handbook. London: McGraw-Hill, 1978.
cha6 523 9_ch10.qxd 11/14/03 12: 41...
(McGraw-Hill) (Instructors Manual) Electric Machinery Fundamentals 4th Edition Episode 1 Part 6 pps
... r/min 120 00 r/min
6 1000 r/min 120 0 r/min 8000 r/min
8 750 r/min 900 r/min 60 00 r/min
10 60 0 r/min 720 r/min 4800 r/min
12 500 r/min 60 0 r/min 4000 r/min
14 428 .6 r/min 514.3 r/min 3 429 r/min ...
()( )
1 86 A 6. 667 124 0 V
A
VIZ
φ
== Ω=
and the terminal voltage is
()
3 3 124 0 V 21 48 V
T
VV
φ
== =
(b) Armature current is 1 86 30 A
A
=∠−°I , and the phase v...
(McGraw-Hill) (Instructors Manual) Electric Machinery Fundamentals 4th Edition Episode 1 Part 8 ppt
... sys
29 0 MW 34 62 . 21 34 62 . 21 34 62 . 21 34 61 .03ffff=−+−+−+−
sys
8. 529 24 7 .66 4 f=−
139
hold off;
When this program is executed, the plot of armature current versus flux is
5 -22 . A ... is shown below
350 400 450 500 550 60 0 65 0 700
20 0
21 0
22 0
23 0
24 0
25 0
26 0
E
A
(V)
I
A
(A)
Synchronous Motor V-Curve
6- 3. A 23 00-V 1000-hp 0.8-PF leading 60...
(McGraw-Hill) (Instructors Manual) Electric Machinery Fundamentals 4th Edition Episode 2 Part 2 ppt
...
()
conv
ind
11,780 W
1 06 N m
2 rad 1 min
10 62 r/min
1 r 60 s
m
P
τ
π
ω
== = ⋅
If
A
I = 76 A, then
()
()( )
24 0 V 76 A 0.09 0. 06 22 8 .6 V
ATAA S
EVIRR=− + = − Ω+ Ω=
22 6
% current.
i_f ... −
OUT
24 6. 4 kW 14.1 kW 10.15 kW 1. 12 kW 2. 46 kW 21 8 .6 kWP =−− −−=
The motor’s efficiency at full load is
OUT
IN
21 8 .6 kW
100% 100% 88.7%
24 6....
(McGraw-Hill) (Instructors Manual) Electric Machinery Fundamentals 4th Edition Episode 2 Part 3 docx
... point where
24 4
(
)
(
)
(
)
(
)
2
2
CU
60 A 0.15 23 0 V 1.35 A 851 W
AA FF
PIRVI=+= Ω+ =
The power converted from electrical to mechanical form is
()()
conv
22 1 V 60 A 13 , 26 0 W
AA
PEI== ... actual speed will be
()
24 0 V
120 0 r/min 1 125 r/min
25 6 V
A
o
Ao
E
nn
E
== =
(b) At full load, 100 A 0.75 A 99 .25 A
ALF
III=−= − = , and
()()
24 0 V 99 .25 A 0.14...
(McGraw-Hill) (Instructors Manual) Electric Machinery Fundamentals 4th Edition Episode 2 Part 5 ppsx
... V
3 sin 3 sin 36. 87 46 .2 kvar
2. 5
V
Q
Z
φ
θ
== °=
Ω
()
()
2
2
2
253 .2 V
3 cos 3 cos -20 108.4 kW
1 .67
V
P
Z
φ
θ
== °=
Ω
()
()
2
2
2
253 .2 V
3 sin 3 sin -20 39.5 kvar
1 .67
V
Q
Z
φ
θ
== ... ,load
27 7 0 V 25 3 .2 -7.3 41.3 52 V
φφ
∆=−=∠°−∠°=∠°VV V
(c) The real and reactive power of each load is
()
2
2
1
25 3 .2 V
3 cos 3 cos 36. 87 61 .6 kW
2. 5
V...
(McGraw-Hill) (Instructors Manual) Electric Machinery Fundamentals 4th Edition Episode 1 Part 1 pot
... 24 9.74
0.733 25 5.08
0. 767 25 9 .2
0.8 26 3.74
0.833 26 7 .6
0. 867 27 0.8
0.9 27 3 .6
0.933 27 6. 14
0. 966 27 8
1 27 9.74
1.033 28 1.48
1. 067 28 2.94
1.1 28 4 .28
1.133 28 5.48
1. 167 ... 0 .23 3 104.4
0 . 26 7 118. 86
0.3 1 32. 86
0.333 1 46. 46
0. 367 159.78
0.4 1 72. 18
0.433 183.98
0. 467 195.04
0.5 20 5.18
0.533 21...
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