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：activation)

附录Ⅲ

英文翻译

A prehensive overview of substations
Along with the economic development and the modern industry developments of
quick
rising,
the
design
of
the
power
supply
system
bee
more
and
more
pletely
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 ponent
、
。
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 consumption
、
Substation 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 stepup transformer stepdown transformer
substation
and
two
broad
categories
、

Stepup
substation
built
on
the
general
power
plant, the general stepdown transformer near the load center built on the low
、
V
oltage
can
also
be
divided
according
to
medium
voltage
substation
(60
kV
and
below),
highvoltage
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
stepup
transformer
stepdown
transformer
substation
and
two
broad
categories
、
Substations
have
been
equipped
with
various
protection devices, these devices are based on lower shortcircuit 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 effective
、
Substations have been equipped with various protection
devices,
these
devices
are
based
on
lower
shortcircuit
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 effective
、
Increase in the efficiency of industrial products means lower product
costs,
increase
market
petitiveness,
which
will
enable
enterprises
to
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
shortcircuit
electric
current, choosing to send together with the electric wire method and the style of the
wire, then proceeding the calculation of shortcircuit electric current
、

This first step of
design included:(1) ascertain the total project (2) load analysis(3) the calculation of the
shortcircuit
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