electric motors and drives fundamentals pdf
Electric motors and drives technical manual 2010 edition
Ngày tải lên :
12/01/2014, 10:43
... class. Slip
-
ring
motors, commutator motors and brake motors
can all be made in
flameproof versions.
No external parts may cause sparks.
The motors must have both an interna
l and an external earthing ... sets the standards. Or at least many countries base
their standards very closely on the IEC standards (for example,
Germany's VDE 0530 standard and Great Britain's BS 2613 Standard
closely ... though, the standards can be grouped into two major
categories: NEMA and IEC (and its derivatives).
In North America, the National Electric Man
ufacturers Association
(NEMA) sets motor standards,...
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Electric Machines and Drives Part 1 pot
Ngày tải lên :
21/06/2014, 01:20
... Institute of Electrical and Electronics Engineers (IEEE) “Standard
Test Procedure for Polyphase Induction Motors and Generators” IEEE 112-B and in its Canadian
CSA 390 adaptation. The standard first ... Medium voltage motors
• Repaired motors
• TENV and TEAO enclosures
It’s relevant to notice that regulation concerning single phase and three-phase small (42/48
and 56 frame) motors is ready, ... be obtained from orders@intechweb.org
Electric Machines and Drives, Edited by Miroslav Chomat
p. cm.
ISBN 978-953-307-548-8
ELECTRIC MACHINES
AND DRIVES
Edited by Miroslav Chomat
Contents
VI
Swarm...
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Electric Machines and Drives Part 2 docx
Ngày tải lên :
21/06/2014, 01:20
... Canada with the adoption of Standard CAN/CSA-
Electric Machines and Drives
14
Fig. 7. Stator Premium motors
Fig. 8. Rotor Premium motors
Electric Machines and Drives
16
Fig. 11. ... incentives and voluntary measures for the energy efficiency of
electric motors is not sufficient, as it is prerequisite to implement mandatory measures for
Electric Machines and Drives
22 ... (2008a) “Barriers and incentive policies to high-efficiency motors
and drives market penetration,”. IEEE International symposium on power
electronics, electrical drives, automation and motion SPEEDAM...
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Electric Machines and Drives part 6 ppt
Ngày tải lên :
21/06/2014, 01:20
... estimated speed and reference speed, (i.e.
e
ω
=
ω
−ω
re f
), a proportional integral compensation is proposed, as follows
100
Electric Machines and Drives
Electric Machines and Drives
90 ... jNωL
m
i
s
+ L
r
d
dt
i
r
+ L
m
d
dt
i
s
(26)
102
Electric Machines and Drives
where R
s
, R
r
, L
s
and L
r
are the stator/rotor resistances and inductances, L
m
is the magnetizing
inductance, ... θ
0
sin θ
0
cos θ
0
and K
=
2
3
⎡
⎢
⎣
1
−
1
2
−
1
2
0
−
√
3
2
−
√
3
2
⎤
⎥
⎦
.
x
qd
and x
αβ
stand for two-dimensional voltage flux and stator current vector, respectively on
(q-d) and ( α-β)reference...
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Tài liệu Voice and Video Conferencing Fundamentals pdf
Ngày tải lên :
23/12/2013, 04:17
... conferencing and collaboration systems has become
more complex.
Voice and Video Conferencing Fundamentals
provides a comprehensive view of
audio and video conferencing concepts, and a clear and ... SPIDs, TIDs, and dial tone, but rather on a
portfolio of unified, presence-enabled services that bring together the worlds of voice and video,
the PC and the telephone, and wired and wireless ... other participants can take control and interact with the shared computer,
controlling the keyboard and mouse.
Muting and Ejecting Participants
The muting and ejecting participants feature allows...
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Tài liệu Pocket Guide for Fundamentals and GSM Testing pdf
Ngày tải lên :
23/12/2013, 06:18
... trans-
ceiver (TRX) for transmission and reception of voice and data, the
mobile also performs a number of very demanding tasks such as
authentication, handover, encoding and channel encoding.
The base ... A
bis
interface. It uses 13.6 kbit/s
for user data and 2.4 kbit/s for inband signaling, timing and synchroni-
zation. It is here that the positions at which the signaling and data bits
occur are determined.
26
Several ... phone
number everywhere.
Handover: In a cellular network, the radio and fixed voice connections are not per-
manently allocated for the duration of a call. Handover, or handoff as it
is called in...
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- 1
Tài liệu Fundamentals of Forensic Practice Mental Health and Criminal Law pdf
Ngày tải lên :
19/02/2014, 04:20
... and forensic re-
search, this section integrates the theoretical and empirical basis for
each legal standard.
3. Forensic issues and methods. The crux of this section is the under-
standing and ... component, forensic, is the application of legal
CLINICAL AND LEGAL FRAMEWORK 11
(b) advances in defining and understanding legal standards, and (c)
advances in the specialized assessment of legal ... le-
gal standard. It typically includes (a) the use of standard measures
(e.g., traditional tests and structured interviews) and (b) specific
applications of specialized measures (i.e., FAIs and FRIs).
4....
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Tài liệu ô tô Haynes Peugeot 205 (Phần Service And Repair Manual).pdf
Ngày tải lên :
23/08/2012, 10:31
... removal and refitting.
d) Oil pump - removal, inspection and
refitting.
e) Camshaft and rocker arms - removal,
inspection and refitting.
f) Cylinder head - removal and refitting.
g) Cylinder head and ... information.
15 Handbrake check and
adjustment
2
Refer to Chapter 9.
16 Underbody and fuel/brake
line check
1
1 With the vehicle raised and supported on
axle stands (see “Jacking and vehicle
support”), ... refitting and
adjustment.
d) Timing belt tensioner and sprockets -
removal, inspection and refitting.
e) Camshaft oil seal - renewal.
f) Camshaft and followers - removal,
inspection and refitting.
g)...
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