Chapter 6 Synchronous Machines potx
Chapter 6. Synchronous Machines potx
... layer winding.
Synchronous Machines
2
In this chapter, we concentrate on conventional synchronous machines whereas the
brushless dc motors will be discussed later in a separate chapter.
Synchronous ... brushless dc motors.
Synchronous Machines
28
0
ω
r
TT
max
ω
rated
ω
max
Torque speed curves of a synchronous motor with VVVF control
Synchronous Machines
14
Synchronous...
electric machine Chapter 5 Synchronous Machines
... 5.4 Synchronous- machine equivalent circuit showing air-gap and
leakage components of synchronous reactance and air-gap voltage.
4
Chapter 5 Synchronous Machines
Main features of synchronous ... four-pole, and
(c) Y connection of the windings.
§5.1 Introduction to Polyphase Synchronous Machines
Synchronous machines:
Armature winding: on the stator, alt...
Chapter 5 SYNCHRONOUS MACHINES
... kA
13.27
0
–13.27
16. 32
0
16. 32
0
13.27
0
26. 54
13.27
0
26. 54
13.27
0
0.5
second
55.2
27 .6
0
40
20
0
1.01w
b
w
b
0.99w
b
v
v
i
i
r
r
r
r
i¢
r
T
e
, 10
6
N·m
T
I
, stepped from 0 to 27 .6 × 10
6
N·m
w
r
, ...
T
P
EV
X
e
b
xfd
r
as
ebd
=
⎛
⎝
⎜
⎞
⎠
⎟
⎛
⎝
⎜
⎞
⎠
⎟
⎛
⎝
⎜
⎞
⎠
⎟
′
+
⎛
⎝
⎜
3
22
1
2
1
2
ωωω
δ
(/)
sin
⎞⎞
⎠
⎟
⎛
⎝
⎜
⎞
⎠
⎟
−
⎛
⎝
⎜
⎞
⎠
⎟
⎡
⎣
⎢
⎢
⎤
⎦
⎥
⎥
=
⎛
⎝
⎜
⎞
⎠
−
ω
ω...
Operating System Concepts - Chapter 6: Process Synchronization potx
... scalable
Modern machines provide special atomic hardware
instructions
Atomic = non-interruptable
z Either test memory word and set value
z Or swap contents of two memory words
6. 46
Silberschatz, ... process P
i
is ready!
6. 32
Silberschatz, Galvin and Gagne ©2005
Operating System Concepts – 7
th
Edition, Feb 8, 2005
Schematic view of a Monitor
Schematic view of a Monitor
6. 39
Sil...
electric machine Chapter 6 Polyphase Induction Machines
...
222
2
2
2
2
ˆ
ˆ
ˆ
ˆ
jsXRZ
I
Es
I
E
s
s
s
+===
(6. 15)
2
2
2
2
2
ˆ
ˆ
jX
s
R
I
E
Z +==
(6. 16)
3
6
12
Figure 6. 14 Induction-machine torque-slip curve showing braking, motor, and generator regions.
Figure 6. 15 Computed ...
mech
T
(
)
mechmechmech
1 TsTP
sm
ω
ω
−
=
=
(6. 24)
(
)
s
sRInP
P
T
ωωω
/
2
2
2ph
s
gap
m
mech
mech
=== (6. 25)
e
e
s
f
ω
π
ω
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛
=...
Chapter 6 symmetrical induction machines
... 5.8 0.435 0.754 26. 13 0.754 0.8 16 0.089
50 460 1705 198 46. 8 0.087 0.302 13.08 0.302 0.228 1 .66 2
500 2300 1773 1.98 × 10
3
93 .6 0. 262 1.2 06 56. 02 1.2 06 0.187 11. 06
2250 2300 17 86 8.9 × 10
3
... ad
ds
ls
dr
lr
X
XX
=+
′
′
⎛
⎝
⎜
⎞
⎠
⎟
(6. 14- 16)
in that
XX
XXX
aq ad
Mlslr
=
=++
′
⎛
⎝
⎜
⎞
⎠
⎟
−
111
1
(6. 14-17)
In the computer simulation, (6. 14-9) – (6. 14- 16) are...
Sediment and Contaminant Transport in Surface Waters - Chapter 6 potx
... 0.15 0.15
222 8 2.25 0.24 0. 26
432 23 5.2 0.33 0.45
1020 32 11.30 0.425 2.12
2000 11 18.01 0.93 5. 36
2400 8 20.18 0.97 6. 73
3000 6 23.07 1.2 8.79
4000 6 27.25 1 .6 12. 26
6000 4 34.13 2.48 19.2
10
–1
10
–2
10
–3
10
–4
10
–5
10
6
01020
Time ... to June 20) is discussed here.
32
0
10
8
6
4
2
0
510
Concentration (mg/L)
Median Diameter (µm)
Depth (m)
15 20 25
64 1 26 2 56 512 1...
CCNA 2 Chapter 6 potx
... network 192. 168 .32.0/20 installed in its routing table. What range of networks are summarized by
this route?
192. 168 .0.0 – 192. 168 .32.0/24
192. 168 .0.0 – 192. 168 .47.0/24
192. 168 .32.0 – 192. 168 .47.0/24
192. 168 .32.0 ... broadcast address for one of the subnets that are shown in the exhibit?
192. 168 .4.3/29
192. 168 .4.15/29
192. 168 .4 .65 / 26
192. 168 .4.255/24
3.
In the net...
CHAPTER 5 Macros and subprograms - CHAPTER 6 Examples for subsystems within microcontroller potx
... parameters.
CHAPT ER 6
Examples for subsystems within
microcontroller
Introduction
6. 1 Writing to and reading from EEPROM
6. 2 Processing interrupt caused by changes on pins RB4-RB7
6. 3 Processing ... movwf Dig3
endm
Macro is called with :
movlw .1 56 ; w = 1 56
movwf RES ; RES = w
digbyte
RES
; now Dec1<-1, Dec2<-5,
Dec3< -6
The following example shows how to u...
Ivanhoe -Sir Walter Scott -Chapter 6 potx
... impaired health, after the departure of the English army, he
Ivanhoe
Sir Walter Scott
Chapter 6
To buy his favour I extend this friendship:
If he will take it, so; if not, adieu;
And,
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