Hauv txhua qhov hluav taws xob hluav taws xob uas tsis muaj qhov ruaj khov thiab tiv thaiv hluav taws xob, qhov tsis xav tau nce tam sim no tuaj yeem tshwm sim. Qhov no tuaj yeem yog qhov tshwm sim ntawm cov xwm txheej ntuj (xws li xob laim ze ntawm txoj kab hluav taws xob) lossis qhov tshwm sim ntawm qhov luv luv (luv luv Circuit Court) los yog inrush tam sim no. Txhawm rau zam tag nrho cov xwm txheej no, txoj kev daws teeb meem yog los teeb tsa cov cuab yeej txwv hauv lub network lossis hauv cheeb tsam.
Tus txwv tam sim no yog dab tsi?
Ib lub cuab yeej uas nws lub voj voog tau tsim nyob rau hauv txoj hauv kev uas nws tiv thaiv qhov muaj peev xwm ntawm kev nce hauv lub zog ntawm hluav taws xob siab tshaj li qhov tau teev tseg lossis tso cai amplitude txwv, hu ua qhov txwv tam sim no. Lub xub ntiag ntawm kev tiv thaiv network nrog lub limiter tam sim no tau teeb tsa hauv nws ua rau nws tuaj yeem txo qhov yuav tsum tau ua rau yav tom ntej ntawm kev ruaj ntseg thiab thermal stability nyob rau hauv qhov kev tshwm sim ntawm luv luv Circuit Court.
Hauv cov kab hluav taws xob siab uas muaj qhov hluav taws xob mus txog 35 kV, kev txwv luv luv tau ua tiav los ntawm kev siv hluav taws xob reactors, qee zaum, fuses ua los ntawm cov khoom ua kom zoo. Tsis tas li ntawd, circuits pub los ntawm qhov siab thiab tsis tshua muaj hluav taws xob tiv thaiv los ntawm circuits sib sau ua ke ntawm lub hauv paus:
- thyristor hloov;
- reactors ntawm non-linear thiab linear hom, shunted nrog ceev-acting semiconductor keyboards;
- nonlinear biased reactors.
Lub hauv paus ntsiab lus ntawm kev txwv
Lub hauv paus ntsiab lus tseem ceeb tom qab kev txwv tam sim no yog txhawm rau tua hluav taws ntau dhau ntawm lub caij uas tuaj yeem hloov nws lub zog mus rau lwm hom, xws li cua sov. Qhov no tau pom meej meej hauv kev ua haujlwm ntawm qhov txwv tam sim no, qhov twg lub thermistor lossis thyristor yog siv los ua cov khoom tawg.
Lwm txoj kev tiv thaiv, uas yog siv feem ntau, yog txiav tawm lub nra ntawm txoj kab uas muaj hluav taws xob tau tshwm sim. Cov kev hloov pauv no tuaj yeem tsis siv neeg, nrog lub peev xwm rov pib dua tus kheej tom qab qhov kev hem thawj ploj mus, lossis yuav tsum tau hloov cov khoom tiv thaiv tiv thaiv, ib yam li cov ntaub ntawv nrog lub fuse.
Qhov siab tshaj plaws yog cov hluav taws xob hluav taws xob ntawm cov txwv uas ua haujlwm ntawm lub hauv paus ntsiab lus ntawm kev kaw cov channel rau kev xa hluav taws xob thaum nws nce. Nyob rau hauv cov ntaub ntawv no, tshwj xeeb pass-them ntsiab yog siv (piv txwv li, transistors), uas yog tswj los ntawm sensors.
Cov tshuab niaj hnub ua ke ua ke ua haujlwm ntawm cov txwv tam sim no rau qee qhov kev thauj khoom ntau dhau thiab kev xaiv tiv thaiv nrog kev thauj khoom kaw ntawm qhov luv luv tam sim no. Feem ntau, cov tshuab no ua haujlwm nyob rau hauv high-voltage networks.
tam sim no limiter circuit
Ntawm qhov piv txwvNrog rau qhov yooj yim tshaj plaws ntawm cov cuab yeej txwv tam sim no, koj tuaj yeem nkag siab tias "electronic fuse" ua haujlwm li cas. Lub Circuit Court tau sib sau ua ke ntawm ob lub transistors bipolar thiab tso cai rau koj los kho lub zog ntawm hluav taws xob hauv cov khoom siv hluav taws xob tsawg.
Kev ua haujlwm ntawm cov khoom siv hluav taws xob:
- VT1 - pass transistor;
- VT2 - hla transistor tswj lub teeb liab amplifier;
- Rs - theem tam sim no sensor (tsis tshua muaj siab resistor);
- R – tam sim no txwv qhov ntsuas.
Qhov ntws ntawm tam sim no hauv Circuit Court ntawm tus nqi uas tau txais yog nrog los ntawm qhov hluav taws xob poob thoob plaws Rs, tus nqi uas, tom qab amplification ntawm VT2, tswj lub pass transistor hauv lub xeev qhib tag nrho. Thaum lub zog ntawm hluav taws xob tau dhau qhov kev txwv, qhov kev hloov pauv ntawm transistor VT1 pib nkaum hauv feem ntawm qhov nce hauv hluav taws xob. Ib qho tshwj xeeb ntawm tus qauv tsim ntawm cov cuab yeej no yog qhov poob loj (voltage poob mus txog 1.6 V) ntawm lub sensor thiab lub caij dhau los, uas yog qhov tsis zoo rau kev siv hluav taws xob tsawg-voltage.
Ib qho piv txwv ntawm Circuit Court tau piav qhia saum toj no yog qhov zoo tshaj plaws, qhov txo qis hauv qhov hluav taws xob poob ntawm qhov kev sib tshuam tau ua tiav los ntawm kev hloov cov khoom dhau los ntawm kev puas siab puas ntsws mus rau qhov cuam tshuam ntawm cov teb nrog cov kev sib tshuam tsawg. Ntawm daim teb, qhov poob tsuas yog 0.1 V.
Inrush Current Limiter
Khoom siv ntawm hom no yog tsim los tiv thaiv inductive thiab capacitive loads (ntawm ntau lub peev xwm) los ntawm surges ntawmpib. Nws yog ntsia rau hauv automation systems. Feem ntau ntawm tag nrho cov, asynchronous motors, transformers, LED teeb yog raug rau xws li tam sim no overloads. Qhov tshwm sim ntawm kev siv lub load tam sim no limiter nyob rau hauv cov ntaub ntawv no yog nce nyob rau hauv kev pab cuam lub neej thiab kev cia siab ntawm cov cuab yeej, unloading hluav taws xob tes hauj lwm.
Lub ROPT-20-1 ntaus ntawv tuaj yeem ua piv txwv ntawm cov qauv niaj hnub ntawm ib theem tam sim no limiter. Nws yog universal thiab muaj ob qho tib si inrush tam sim no limiter thiab relay rau voltage tswj. Lub Circuit Court yog tswj los ntawm ib tug microprocessor, uas cia li dampen pib surge thiab yuav tua lub load yog hais tias lub voltage nyob rau hauv lub network nce siab tshaj qhov tso cai.
Cov cuab yeej suav nrog hauv kev tawg ntawm lub zog thiab cov kab thauj khoom, nws ua haujlwm raws li hauv qab no:
- Thaum siv qhov hluav taws xob, lub microcontroller tig rau, uas kuaj xyuas qhov muaj theem voltage thiab nws tus nqi.
- Yog tias tsis pom muaj teeb meem nyob rau hauv ib lub sijhawm, lub load txuas nrog, uas tau teeb tsa los ntawm ntsuab LED "Network".
- Lub sijhawm 40 millisecond countdown tshwm sim thiab lub relay shunts lub damping resistor.
- Thaum qhov hluav taws xob sib txawv los ntawm cov qauv lossis nws tsis ua haujlwm, lub relay txiav tawm ntawm qhov load, uas yog lub teeb liab liab "Emergency" LED.
- Thaum lub network tsis sib xws (tam sim no, voltage) tau rov qab los, lub kaw lus rov qab mus rau nws qhov qub.
Generator tam sim no txwv
Hauv lub tshuab hluav taws xob tsheb, nws yog ib qho tseem ceeb los tswj tsis tau tsuas yog tus nqi ntawm cov zis voltage, tab sis kuj tso zisnyob rau hauv lub load tam sim no. Yog tias dhau ntawm thawj tus tuaj yeem ua rau tsis ua haujlwm ntawm cov khoom siv teeb pom kev zoo, cov khoom siv hluav taws xob nyias nyias, nrog rau kev rov ua lub roj teeb, ces qhov thib ob tuaj yeem ua rau lub tshuab hluav taws xob tsis zoo.
Cov zis tam sim no nce ntxiv, qhov load ntau txuas nrog ntawm cov zis ntawm lub tshuab hluav taws xob (los ntawm kev txo tag nrho cov kev tawm tsam). Txhawm rau tiv thaiv qhov no, siv lub tshuab hluav taws xob electromagnetic tam sim no. Nws lub hauv paus ntsiab lus ntawm kev ua haujlwm yog ua raws li kev suav nrog kev tiv thaiv ntxiv hauv Circuit Court ntawm qhov zoo siab winding ntawm lub tshuab hluav taws xob thaum muaj hluav taws xob nce.
luv luv Circuit Court tam sim no txwv
Tiv thaiv cov nroj tsuag hluav taws xob thiab cov chaw tsim khoom loj los ntawm cov hluav taws xob surge, hloov hom tam sim no txwv (kev ua tawg) qee zaum siv. Lawv suav nrog:
- disconnect ntaus ntawv;
- fuse;
- chip block;
- transformer.
Los ntawm kev tswj cov nqi hluav taws xob, lub logic Circuit Court xa cov teeb liab mus rau lub tshuab hluav taws xob (tom qab 80 microseconds) thaum muaj hluav taws xob luv luv. Qhov kawg ua rau lub tsheb npav hauv daim cartridge, thiab tam sim no raug xa mus rau lub fuse.
Txoj kev sib txawv tam sim no txwv
Txhua hom kev txwv yog tsim los rau cov haujlwm tshwj xeeb thiab muaj qee yam khoom:
- fuse - ua yeeb yam sai tab sis yuav tsum tau hloov;
- reactors - zoo tiv thaiv luv luv tam sim no, tab sis muaj qhov poob loj thiab qhov hluav taws xob poob rau lawv;
- hluav taws xob hluav taws xob thiab hluav taws xob ua hluav taws xob nrawm - muaj qhov poob qis, tab sis tiv thaiv tsis zoo tiv thaiv cov dej ntws tawm;
- electromagnetic relays - muaj kev txav chaw sib cuag uas hnav dhau sijhawm.
Yog li ntawd, xaiv lub voj voog twg los siv hauv koj lub tsev, koj yuav tsum kawm tag nrho cov yam ntxwv tshwj xeeb rau ib qho hluav taws xob hluav taws xob.
Zoo kawg
Nws yuav tsum nco ntsoov tias kev nkag mus rau cov khoom siv hluav taws xob xav tau qee yam kev paub txog hluav taws xob thiab kev ua haujlwm. Yog li ntawd, thaum txhim kho cov cuab yeej zoo li no, nws yog ib qho tseem ceeb kom ua raws li kev ceev faj txog kev nyab xeeb. Tab sis nws yog qhov zoo tshaj plaws, tau tso siab rau txoj haujlwm no rau tus kws tshaj lij.
