变电站 外文翻译 外文文献 英文文献 变电站的综合概述

2021年1月26日发(作者：联系电话英文)

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, 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,
1

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 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
2

increase
for
the
national
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
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,
3