变电站概述中英文对照外文翻译文献

2021年1月26日发(作者：elder)


中英文资料对照外文翻译


英文翻译

A comprehensive overview of substations
Along
with
the
economic
development
and
the
modern
industry
developments
of
quick
rising,
the
design
of
the
power
supply
system
become
more
and
more
completely
and
system.
Because
the
quickly
increase
electricity
of
factories,
it
also
increases
seriously
to
the
dependable
index
of
the
economic
condition,
power
supply
in
quantity.
Therefore
they
need
the
higher
and
more
perfect
request
to
the
power
supply.
Whether
Design
reasonable,
not
only
affect
directly
the
base
investment
and
circulate
the
expenses
with
have
the
metal
depletion
in
colour metal, but also will reflect the dependable in power supply and the
safe in many facts. In a word, it is close with the economic performance
and the safety of the people. The substation is an importance part of the
electric power system, it is consisted of the electric appliances equipments
and
the
Transmission
and
the
Distribution.
It
obtains
the
electric
power
from the electric power system, through its function of transformation and
assign, transport and safety. Then transport the power to every place with
safe,
dependable,
and
economical.
As
an
important
part
of
power’s
transport and control, the transformer substation must change the mode of
the
traditional
design
and
control,
then
can
adapt
to
the
modern
electric
power system, the development of modern industry and the of trend of the
society life.
Electric
power
industry
is
one
of
the
foundations
of
national
industry and national economic development to industry, it is a coal, oil,
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natural
gas,
hydropower,
nuclear
power,
wind
power
and
other
energy
conversion into electrical energy of the secondary energy industry, it for
the other departments of the national economy fast and stable development
of
the
provision
of
adequate
power,
and
its
level
of
development
is
a
reflection
of
the
country's
economic
development
an
important
indicator
of
the
level.
As
the
power
in
the
industry
and
the
importance
of
the
national
economy,
electricity
transmission
and
distribution
of
electric
energy
used
in
these
areas
is
an
indispensable
component.
。
Therefore,
power
transmission
and
distribution
is
critical.
Substation
is
to
enable
superior power plant power plants or power after adjustments to the lower
load of books is an important part of power transmission. Operation of its
functions,
the
capacity
of
a
direct
impact
on
the
size
of
the
lower
load
power,
thereby
affecting
the
industrial
production
and
power
tion system if a link failure, the system will protect the
part of action. May result in power outages and so on, to the production
and
living
a
great
disadvantage.
Therefore,
the
substation
in
the
electric
power
system
for
the
protection
of
electricity
reliability,
sensitivity
and
other indicators.
Power plants and substations are connected user link in the middle,
transformation
and
distribution
of
electric
energy
to
play
the
role.
According
to
the
different
tasks
substation
can
be
divided
into
step-up
transformer
step-down
transformer
substation
and
two
broad
categories.
Step-up substation built on the general power plant, the general step-down
transformer
near
the
load
center
built
on
the
low.V
oltage
can
also
be
divided
according
to
medium
voltage
substation
(60
kV
and
below),
high-voltage substations (110 ~ 220 kV), EHV Substation (330 ~ 765 kV)
and Ultra High V
oltage Substation (1000 kV and above). In electric power
system according to their status as a hub substation can be divided into the
middle substation substations and terminals. This requires a substation part
2

of economic rationality, the second part of safe and reliable, the only way
to
the
normal
operation
of
substation
work
services
for
the
national
economy. There are step-up transformer step- down transformer substation
and
two
broad
tions
have
been
equipped
with
various
protection devices, these devices are based on lower short-circuit load to a
maximum load conditions, such as configuration settings and, therefore, in
the event of the failure was similar to the specific circumstances under to
judge
by
the
system
should
automatically
trip
protection,
and
now
the
protection of the whole trip has been a very short time, the lifting of the
fault, the system will automatically reclosing devices and the gateway to
restore
power
quickly.
This
is
to
protect
the
lower
the
load
is
very
favorable. This will not only protect the safety of the load equipment is in
favor of extending the service life and reduce equipment investment, and
improved
reliability
of
electricity
supply,
which
is
to
improve
the
efficiency
of
industrial
and
agricultural
production
is
very
tions have been equipped with various protection devices,
these
devices
are
based
on
lower
short-circuit
load
to
a
maximum
load
conditions,
such
as
configuration
settings
and,
therefore,
in
the
event
of
the failure was similar to the specific circumstances under to judge by the
system should automatically trip protection, and now the protection of the
whole trip has been a very short time, the lifting of the fault, the system
will
automatically
reclosing
devices
and
the
gateway
to
restore
power
quickly. This is to protect the lower the load is very favorable. This will
not only protect the safety of the load equipment is in favor of extending
the service life and reduce equipment investment, and improved reliability
of electricity supply, which is to improve the efficiency of industrial and
agricultural
production
is
very
se
in
the
efficiency
of
industrial
products
means
lower
product
costs,
increase
market
competitiveness, which will enable enterprises to increase for the national
3

economy
and
make
a
greater
contribution
to
development.
Electricity
supply
reliability
and
other
fields,
can
improve
people's
quality
of
life,
improve their living conditions.

Analyse
change
to
give
or
get
an
electric
shock
a
mission
for
carrying
and
customers
carries
etc.
circumstance,
choose
the
address,
make good use of customer data proceed then carry calculation, ascertain
the
correct
equipment
of
the
customer.
At
the
same
time
following
the
choice of every kind of transformer, then make sure the line method of the
transformer
substation,
then
calculate
the
short-circuit
electric
current,
choosing to send together with the electric wire method and the style of
the wire, then proceeding the calculation of short-circuit electric current.
This
first
step
of
design
included:(1)
ascertain
the
total
project
(2)
load
analysis(3)
the
calculation
of
the
short-circuit
electric
current
(4)
the
design of an electric shock the system design to connect with system and
the
choice
of
line
project
(5)
the
choice
and
the
settle
of
the
protective
facility (6) the contents to defend the thunder and protection of connect the
earth.
Along
with
the
high
and
quick
development
of
electric
power
technique, electric power system then can change from the generate of the
electricity to the supply the power.


Design the task this time is aim at intensity of mastering of every
subject knowledge of this speciality reflecting, and of test this speciality’s
study
result.
first,
analyze
the
tend
of
load
department
according
to
all
parameter of load about system and circuit on task book. It expounds the
necessity to this situation from the rspect of increasing load. Then through
to the
generalization
of
planning
to build
the transformer
substation
and
the
analysis
of
the
load
materials,
safe,
economy
and
dependability
are
considered, has confirmed the mainly wiring form of 10kV
. Calculated and
supplied
power
in
the
range
and
confirmed
TV
station's
number
of
the
main voltage transformer through load finally, capacity and type, capacity
4

and type of using the voltage transformer stand surely at the same time,
finally, the result of calculation of calculating that and short out according
to the electric current of largest lasting job, make the circuit to protect, the
voltage
transformer
is
protected,
the
bus
bar
is
protected,
prevent
the
thunder from protecting.
This
graduation
project
take
the
10kV
transformer
substation
as
the
main design object, this 10kV transformer substation is the local important
transformer
substation,
is
the
electrical
power
system
10kV
voltage
rank
important
part.
This
transformer
substation
is
equipped
with
2
main
transformers,
in
the
station
the
host
wiring
divides
into
10kV,and
0.4
kV
two
voltages

design
first
chapter
is
an
introduction,
mainly
elaborated
the
transformer
substation
in
electrical
power
system
status.
Designs the transformer substation the principle and the goal as well as the
transformer
substation
basic
situation.
Second
chapter
is
shoulders
the
computation
and
the
transformer
choice,
carries
on
the
load
computation
according
to
the
known
transformer
substation
load
material
to
the
transformer substation. Through the load which obtains had determined the
host
changes
the
capacity
and
a
number,
the
host
change
the
pattern,
the
winding
wiring
way,
the
accent
press
the
way
and
the
host
changes
the
impedance.
Third
chapter
is
the
transformer
substation
electricity
host
wiring
design,
separately
through
to
10kV
side
electricity
host
wiring
drawing up, chooses the stablest reliable wiring way. Fourth chapter is the
short class computation, first determined short-circuits the spot, calculates
various
parts
reactance,
then
to
respectively
short-circuits
separately
to
carry
on
the
computation,
obtains
respectively
short-circuits
the
short-circuit
current.
Fifth
chapter
is
the
electrical
equipment
choice,
the
electrical
equipment
including
the
generatrix,
the
circuit
breaker,
the
isolator,
the
electric
current
and
the
voltage
transformer,
the
fuse.
Sixth
chapter is the power distribution equipment, mainly carries on the design to
5