外文翻译
Tra
sformer
ATra
sformerisadevicethatcha
geacelectrice
ergyato
evoltageleveli
toacelectrice
ergyata
othervoltagelevelthroughtheactio
ofamag
eticfiledItco
sistsoftwoormorecoilsofwirewrappedacommo
ferromag
eticcoreThesecoilsareusually
otdirectlyco
ectedTheo
lyco
ectio
betwee
thecoilsisthecommo
mag
eticfluxprese
twithi
thecoreO
eofthetra
sformerwi
di
gsisco
ectedtoasourceofacelectricpowera
dtheseco
da
dperhapsthirdtra
sformerwi
di
gsupplieselectricpowertoloadsThetra
sformerwi
di
gco
ectedtothepowersourceiscalledtheprimarywi
di
gori
putwi
di
ga
dthewi
di
gco
ectedtotheloadsiscalledtheseco
darywi
di
goroutputwi
di
gIfthereisathirdwi
di
go
thetra
sformeritiscalledthetertiarywi
di
g
Powertra
sformersareco
structedo
o
eoftwotypesofcoresO
etypeofco
structio
co
sistsofasimplerecta
gularlami
atedpieceofsteelwiththetra
sformerwi
di
gswrappedarou
dtwosidesoftherecta
gleThistypeofco
structio
isk
ow
ascoreformTheothertypeco
sistsofathreeleggedlami
atedcorewiththewi
di
gswrappedarou
dthece
terlegThistypeofco
structio
isk
ow
asshellformI
eithercasethe
1
f外文翻译
coreisco
structedofthi
lami
atio
selectricallyisolatedfromeachotheri
ordertoreduceeddycurre
tstoami
imum
Powertra
sformersaregive
avarietyofdiffere
t
amesdepe
di
go
theirusei
powersystemsAtra
sformerco
ectedtotheoutputofage
eratora
dusedtostepitsvoltageuptotra
smissio
levelsissometimescalledau
ittra
sformerThetra
sformerattheothere
dofthetra
smissio
li
ewhichstepsthevoltagedow
fromtra
smissio
levelstodistributio
levelsiscalledasubstatio
tra
sformerFi
allythetra
sformerthattakesthedistributio
voltagea
dstepsitdow
tothefi
alvoltageatwhichthepowerisactuallyusediscalledadistributio
tra
sformerAllthesedevicesareesse
tiallythesametheo
lydiffere
ceamo
gthemistheiri
te
deduse
I
additio
tothevariouspowertra
sformerstwospecialpurposetra
sformersareusedwithelectricmachi
erya
dpowersystemsThefirstofthesespecialtra
sformersisadevicespeciallydesig
edtosampleahighvoltagea
dproducealowseco
daryvoltagedirectlyproportio
altoitSuchatra
sformeriscalledapote
tialtra
sformerApowertra
sformeralsoproducesaseco
daryvoltagedirectlyproportio
altoitsprimaryvoltagethediffere
cebetwee
apote
tialtra
sformera
dapowertra
sformeristhatthepote
tialtra
sformerisdesig
edtoha
dleo
lyaverysmallcurre
tTheseco
dtypeofspecialtra
sformerisadevice
2
f外文翻译
desig
edtoprovideaseco
darycurre
tmuchsmalltha
butdirectlyproportio
altoitsprimarycurre
tThisdeviceiscalledacurre
ttra
sformer
Theidealtra
sformerwithoutlossofe
ergysor