resume for electrical engineer freshers
Tài liệu Final report "The Situation of Learning English for Electrical Engineering of D06k52 Students in Faculty of Foreign Language, Ha Noi University of Technology" docx
Ngày tải lên :
13/12/2013, 12:15
... of Foreign Language
Ha Noi University of Technology
Results
1. The course requirements in textbook of English for Electrical Engineering:
Before the lesson
- Students are required to prepare for ... D06K52
Faculty of Foreign Language
Ha Noi University of Technology
Final report "The Situation of Learning
English for Electrical Engineering of
D06k52 Students in Faculty of Foreign
Language, ... Ngoc D06K52
Faculty of Foreign Language
Ha Noi University of Technology
The Situation of Learning English for Electrical Engineering of D06k52
Students in Faculty of Foreign Language, Ha Noi...
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A STUDY ON DIFFICULTIES IN READING ENGLISH FOR ELECTRICAL AND ELECTRONICS ENGINEERING AT VINH TECHNICAL TEACHERS’ TRAINING UNIVERSITY
Ngày tải lên :
29/01/2014, 10:33
... recently. ESP at VTTTU includes “English for Technical
Engineering”, “English for Electrical and Electronics Engineering” and “English for Computer
Science”.
The ESP textbooks were designed ... secondary school teachers in four major fields: Mechanical Engineering, Mechanical
Dynamic Engineering, Electrical and Electronics Engineering and Information Technology.
The students are provided with ... suggestions for teachers and
learners to improve the teaching and learning English for EEE at VTTTU.
2. Aims of the study
The study aims to examine the difficulties in reading English for Electrical...
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handbook for electrical engineers hu (2)
Ngày tải lên :
21/03/2014, 12:12
... case.
3.1.8 Instrument Transformers
The material that follows is a brief summary of information on instrument transformers as measure-
ment elements. For more extensive information, consult American ... instrument transformers, and auxiliary
devices. Further detailed information may be found in the Handbook for Electric Metermen, Edison
Electric Institute.
The practical unit of electrical energy ... a vernier adjustment for the lower voltage for adjusting to equal
the output of a given standard cell and internal batteries for complete isolation. Such devices have
performance approaching...
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handbook for electrical engineers hu (3)
Ngày tải lên :
21/03/2014, 12:12
... unity for vacuum to slightly greater than unity for gases at
atmospheric pressure, 2 to 8 for common insulating solids and liquids, 35 for ethyl alcohol and 91
for pure water, and 1000 to 10,000 for ... Fire-refined copper is a lower-purity grade
intended for alloying or for fabrication into products for mechanical purposes; it is not intended for
electrical purposes. Casting copper is the grade ... industry, but for this purpose it is obtained in the
form of ferrosilicon, which is a coarse granulated or broken product. It is very useful as an alloying
element in steel for electrical sheets...
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handbook for electrical engineers hu (4)
Ngày tải lên :
21/03/2014, 12:12
... produced for further fission action. For a 1300-MW (electrical) light-water nuclear
plant, a representative core assembly might involve 241 fuel assemblies each weighing approxi-
mately 660 kg, for ... The uranium would be cleaned up in preparation for reuse. For each
1200-lb assembly, there would be only around 35 lb of fission product waste. For 60 assemblies
discharged per reactor per year, ... desired performance in the range of neutron flux. In addition to pulses from
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handbook for electrical engineers hu (5)
Ngày tải lên :
21/03/2014, 12:12
... provide the force required.
FIGURE 6-7 Mechanical governor for small
turbines.
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PRIME MOVERS 6-17
to h
1
− h
2
minus the small pump work h
4
– h
3
ϭ
3
(P
4
– P
3
)/J required, and the heat added to the
cycle is equal to h
1
– h
4
. Therefore
(6-4) ... stainless steels. The rotor may be a single
forging, fabricated from a shaft and separate wheels, or constructed of forged elements welded
together. The buckets forming the rotating portion of the steam...
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handbook for electrical engineers hu (6)
Ngày tải lên :
21/03/2014, 12:12
... number of slots per pole per phase
g ϭ electrical angle between slots
q
s
ϭ electrical angle of skew
Here, the relevant angles are stated in electrical terms. The electrical angle is p times the physical
angle. ... construction.
The rotor body for a salient-pole machine may be a solid forging or assembly of heavy steel
plates, for high-speed designs, or a spider-and-rim assembly for low-speed designs. The ... transport loss.
7.9 TESTING OF AC GENERATORS
Tests are performed on generators to establish conformance with projected performance and
dynamic performance parameters. Details of such tests are contained...
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handbook for electrical engineers hu (7)
Ngày tải lên :
21/03/2014, 12:12
... armature-core length, in
K
1
ϭ 18.5 for noncommutating-pole machines
ϭ 0 for machines with commutating-pole length ϭ L
r
K
2
ϭ 1.0 for machines using nonmagnetic bands
ϭ 1.7 for machines using magnetic ... coil
equal to 1 V for a change of 10
8
linkages/s (Mx/s) for
each turn of the coil, or E ϭ (⌬fT ϫ 10
–8
)/t V.
If the flux lines are deformed by the motion of the
coil conductor before they are broken, ... Institute (ANSI) C50.4 for dc machines includes lists of recommended tests for
dc generators and motors. The IEEE Test Code for dc machines covers recommended methods to be
used for these tests.
8.14...
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handbook for electrical engineers hu (8)
Ngày tải lên :
21/03/2014, 12:12
... website.
Source: STANDARD HANDBOOK FOR ELECTRICAL ENGINEERS
HYDROELECTRIC POWER GENERATION 9-21
If the combined turbine-generator efficiency is to be calculated, the formula may be changed to
where ... turbine for a given hydroelectric powerplant, it is important to consider
the efficiency performance of the various types of turbines available for the head contemplated. Not
only is this true for ... spillway, etc.
Bulkhead gate. A gate used either for temporary closure of a channel or conduit before dewater-
ing it for inspection or maintenance or for closure against flowing water. Bulkhead gates...
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handbook for electrical engineers hu (9)
Ngày tải lên :
21/03/2014, 12:12
... correction of 0.4% of rated kVA for self-cooled transformers or 0.5%
of rated kVA for forced-air-cooled or forced-oil-cooled transformers for each 330 ft of additional
altitude above 3300 ft ... as for a self-cooled transformer.
Operation at high altitude increases the effective oil rise of air-cooled transformers. ANSI C57
provides for a compensating correction of 0.4% of rated kVA for ... tables for normal consumption of life and for moderate sacrifice of life are
documented in ANSI/IEEE C57.92 for power transformers. Information is provided for situations
10-48 SECTION TEN
FIGURE...
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handbook for electrical engineers hu (10)
Ngày tải lên :
21/03/2014, 12:12
... manifested in mechanical, electrical, chemical, and thermal forms—the latter being a spe-
cial form of mechanical energy. Energy may be converted from any of these forms to any other form
by one or more ... useful for planning pur-
poses, but being able to forecast the wind accurately for one or two days could provide a significant
economic benefit, allowing utility engineers to plan ahead for wind ... of the PV market. For the
2,000 million people in the developing world who currently have no access to basic electrical
services, PV presents the opportunity for a giant leap forward and a much...
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handbook for electrical engineers hu (11)
Ngày tải lên :
21/03/2014, 12:12
... STANDARD HANDBOOK FOR ELECTRICAL ENGINEERS
used to depict the use of each type of fuel. Coal, for example, would include track networks for
train transportation, river networks for barge transportation, ... Heat, Motion, Information
FIGURE 12-2 Electric supply chain model.
Generation
Stepup
transformer
National grid
400 kV – 275 kV
Stepdown
transformer
Industry
11 kV
Substation
transformer 11 kV
Distribution ... availability. The spot market is for immediate delivery
of the commodity. The forward market is for the near–term delivery of the commodity. The future
markets are for the financial hedging of the...
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handbook for electrical engineers hu (12)
Ngày tải lên :
21/03/2014, 12:12
... of equipment that may not
work well for its application. By leasing, the lessee gets a chance to work with the equipment and see
if it performs as expected—before spending large amounts of investment ... having
cash available to use for whatever investment opportunity may appear in the future. Before one person
will lend money to another, the interest earned must compensate the lender for the unavailability ... years for an internal rate of return of 32.6%.
∗Operation and maintenance.
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handbook for electrical engineers hu (13)
Ngày tải lên :
21/03/2014, 12:12
... HANDBOOK FOR ELECTRICAL ENGINEERS
silica. Insulators of high-grade electrical porcelain of the proper chemical
composition free from laminations, holes, and cooling stresses have been
available for ... dB(A)
2 ഛ d ഛ 6
N
p
ϭ
number of phases
For each phase, the L
5
noise level is given by
(14-27)
with
AN
0
ϭ 75.2 for n Ͻ 3
ϭ 67.9 for n Ն 3
K
1
ϭ 7.5 for n ϭ 1
ϭ 2.6 for n ϭ 2
AN
5
ϭ
Ϫ
665
g
ϩ 20 log ... at a specific conductor
size, where installed cost forces the PWRR
higher for large conductors and the cost of
losses forces the PWRR higher for smaller
conductors. This is conceptualized in Fig....
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handbook for electrical engineers hu (14)
Ngày tải lên :
21/03/2014, 12:12
... are significantly lower for HVDC lines than for EHV ac lines but are
more sensitive to altitude effects. Switching surges are significantly lower for HVDC lines than for
EHV ac lines. Switching ... through ac
phase reactors and power transformers. Harmonic filters are located between the phase reactors and
power transformers. Therefore, the transformers are exposed to no dc voltage stresses ... filter
Power
transformer
I_VSC
Converter
reactor
FIGURE 15-25 Simplified SLD for VSC station.
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