electric motors and drives fundamentals types and applications austin hughes
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 ... environmental protection
and enclosure provided.
The table below can be used to convert from NEMA Enclosure Types to
IEC Enclosure Types:
2010 Edition
Electric Motors & Drives
Technical Manual
Through ... 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...
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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 ... modern
electric drives.
The twelve chapters of the book wri en by renowned authors, both academics and
practitioners, cover a large part of the fi eld of electric machines and drives. Various
types ... 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,...
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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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Data Types and Values
Ngày tải lên :
05/10/2013, 12:20
... .
es
yes (true) and no (false).
ometimes it is even useful to consider them equivalent to
1 (true) and 0 (false). (In
fact, JavaScript does just this and converts true and false to 1 and 0 when ... JavaScript 1.2
and was standardized and extended by ECMAScript v3.
een a pair of slashes constitutes
d by one or
apter 10
section of this book.
Regular expressions provide a rich and powerful ... v3 standard, is not
portable, and should be avoided.
When we discuss the object data type, you'll see that object properties and methods a
used in the same way that string properties and...
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Strength Modeling And Advanced Net Types Definitions
Ngày tải lên :
17/10/2013, 22:15
... Keywords wor, wand, trior, and triand are used to resolve
such conflicts. Net wand perform the and operation on multiple driver logic values.
If any value is 0, the value of the net wand is 0. Net ... same syntax and function as the nets wor and wand. The example below
explains the function.
wand out1;
wor out2;
buf (out1, 1'b0);
buf (out1, 1'b1); //out1 is a wand net; gets ... a
//instead of going to z. strength is large.
A.3.3 tri0 and tri1
Keywords tri0 and tri1 are used to model resistive pulldown and pullup devices. A
tri0 net has a value 0 if nothing is driving...
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Introducing Data Types and Operators
Ngày tải lên :
27/10/2013, 08:15
... for a wide range of
programming. Data types and operators are a large subject. We will begin here with an examination of
C++’s foundational data types and its most commonly used operators. We ... there are several different
types of integers, such as int, short int, and unsigned long int. There are also three different
floating-point types: float, double, and long double. The question ... operand, C++ will perform the
operation prior to obtaining the operand’s value for use by the rest of the expression. If the operator
follows its operand, then C++ will obtain the operand’s...
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Tài liệu Corrosion: Fundamentals, Testing, and Protection P2 docx
Ngày tải lên :
13/12/2013, 04:15
... spoils the electrode.
E. Protopopoff and P. Marcus, Potential versus pH (Pourbaix) Diagrams, Corrosion: Fundamentals, Testing,
and Protection, Vol 13A, ASM Handbook, ASM International, 2003, p ... secondary reference electrodes that are easier to construct and handle, less sensitive to impurities,
and whose potential is very stable and well- known with respect to the SHE (Ref 1).
The simpler ... steel pipe.
E. Protopopoff and P. Marcus, Potential Measurements with Reference Electrodes, Corrosion: Fundamentals,
Testing, and Protection, Vol 13A, ASM Handbook, ASM International, 2003,...
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Tài liệu Corrosion: Fundamentals, Testing, and Protection P1 docx
Ngày tải lên :
13/12/2013, 04:15
... to understand, predict, and control corrosion.
P. Marcus, Introduction to Fundamentals of Corrosion Thermodynamics, Corrosion: Fundamentals, Testing,
and Protection, Vol 13A, ASM Handbook, ... Introduction to the Fundamentals of Corrosion, Corrosion: Fundamentals, Testing, and Protection,
Vol 13A, ASM Handbook, ASM International, 2003, p 3-4
Introduction to the Fundamentals of Corrosion ... the double layer and in the electrolyte by
diffusion.
E. Protopopoff and P. Marcus, Electrode Potentials, Corrosion: Fundamentals, Testing, and Protection, Vol
13A, ASM Handbook, ASM International,...
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Tài liệu RECEIVER TYPES AND CHARACTERISTICS doc
Ngày tải lên :
16/12/2013, 14:15
... the receiver types best suited for various types of signals and Tables 3 and 4 compare several direction of
arrival (DOA) and emitter location techniques. Table 5 shows qualitative and quantitative ... TUNED NARROWBAND SUPERHET
WIDEBAND SUPERHET
INSTANTANEOUS FREQUENCY MEASUREMENT
LIMITING
AMPLIFIER
DELAY
LINE
FREQUENCY
INFORMATION
SIN
COS
IF AMP
TUNING
VIDEO
BAND 1
VIDEO
BAND 2
VIDEO
BAND 3
VIDEO
RF ... simultaneous signal capability
Good POI
Table 2. Receiver Types vs. Signal Types
Signal
Type
Receiver Type
Wide-Band TRF Crystal IFM Narrow-Band Wide-Band Channelized Microscan Acousto-optic
Crystal Video...
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Tài liệu Lesson 2: Expressions, Types, and Variables doc
Ngày tải lên :
21/12/2013, 06:16
... both the left hand and
right hand sides of the operator and putting the results into the left hand
side. The example could have been written as "result = result + x" and
returned ... expressions, types, and variables. It's goal is to
meet the following objectives:
l
Understand what a "Variable" is.
l
Learn the C# simple types.
l
Obtain a basic understanding ... requirements.
The following table shows the floating point and decimal types, their size,
precision, and range.
Floating point types are used when you need to perform operations
requiring...
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