CB-Hom ATS: Kev Xaiv Ntse Dua, Muaj Kev Nyab Xeeb Dua Rau Cov Tshuab Fais Fab Niaj Hnub

Hauv cov tshuab fais fab, lub tshuab hloov pauv tsis siv neeg (ATS) yog ib qho cuab yeej tseem ceeb uas ua kom muaj zog txuas ntxiv mus rau cov khoom tseem ceeb. Ntawm cov no, CB-rated ATS tau txais kev siv dav hauv cov tsev lag luam thiab cov chaw ua haujlwm vim nws txoj kev tsim qauv tshwj xeeb thiab cov yam ntxwv ua haujlwm. Tsab xov xwm no yuav nkag mus rau hauv cov txiaj ntsig tseem ceeb ntawm CB-rated ATS los ntawm peb qhov ntsuas: kev nyab xeeb, kev siv nyiaj tsim nyog, thiab kev ywj pheej ntawm kev siv.

I. Kev Tiv Thaiv Ua Ke Txhim Kho Kev Nyab Xeeb ntawm Lub System

(1) Kev Tiv Thaiv Ob Chav Tiv Thaiv Kev Luv Luv thiab Kev Thauj Khoom Ntau Dhau

Cov ATS uas ntsuas CB muaj ib lub cuab yeej overcurrent trip uas saib xyuas cov hluav taws xob circuit tas li. Thaum lub sijhawm luv luv, cov khoom tseem ceeb tuaj yeem cuam tshuam cov hluav taws xob txhaum hauv milliseconds, tiv thaiv cov khoom siv hlawv lossis muaj kev phom sij hluav taws. Piv txwv li, hauv ib lub tsev lag luam, ATS qib CB tau ua tiav cuam tshuam qhov hluav taws xob txhaum luv luv hauv lub thawv faib khoom, tiv thaiv hluav taws kub kis. Nws txoj kev tiv thaiv overload, ua tiav los ntawm cov khoom siv thermal trip, ua rau lub sijhawm ncua sijhawm thaum cov hluav taws xob thauj khoom ntau dua li tus nqi ntsuas, tiv thaiv cov khoom siv thaum tsis txhob tripping cuav.

(2) Kev Rho Tawm Qhov Txhaum Cai thiab Kev Muab Fais Fab Txuas Ntxiv Mus Sib Npaug

Tsis zoo li PC-grade ATS, CB-grade ATS ua ob qho kev tiv thaiv thiab kev hloov pauv los ntawm ib lub cuab yeej. Hauv cov xwm txheej ntawm kev muab hluav taws xob hauv tsev, thaum lub zog tseem ceeb tsis ua haujlwm, CB-grade ATS sai sai txiav lub voj voog tsis ua haujlwm thiab hloov mus rau lub zog thaub qab hauv 1-2 vib nas this. Tus qauv tsim no tshem tawm qhov nyuaj ntawm kev xav tau cov khoom siv hluav taws xob ntxiv thaum siv PC-grade ATS, txo cov kev pheej hmoo ntawm lub kaw lus uas tshwm sim los ntawm kev sib koom tes tsis raug ntawm cov khoom siv tiv thaiv. Piv txwv li,YUS's CB Hloov Chaw Hloov Pauv Tsis Siv NeegYEQ3-63W1ua tau raws li cov kev cai no tag nrho. YEQ3-63W1Lub Hloov Pauv Hloov Tsis Siv Neeg no siv tau rau AC 50Hz/60Hz, qhov hluav taws xob ua haujlwm 230V/400V thiab qis dua qhov faib hluav taws xob thiab tswj cov voj voog. Qhov ntsuas tam sim no ncav cuag txog 63A. Nws feem ntau ua lub khawm tseem ceeb rau cov khoom siv hluav taws xob kawg thiab tseem tuaj yeem tswj ntau hom cav, cov khoom siv hluav taws xob tsawg, teeb pom kev zoo, thiab lwm yam kev siv.

Ua raws li GB/T14048.11 thiab IEC947-6-1 cov qauv.

II. Cov txiaj ntsig tseem ceeb ntawm tus nqi siv rau lub neej

(1) Cov nqi yuav khoom thawj zaug thiab kev saib xyuas sib npaug

Txawm hais tias cov chav ATS uas muaj CB-rated pheej yig dua 30% -50% rau ib chav dua li cov uas muaj PC-rated, lawv cov nqi siv tag nrho yuav tsum tau soj ntsuam kom zoo. Hauv ib qho project industrial park, tus nqi txij nkawm 10 xyoo (xws li kev kho chav mus ncig thiab kev hloov chaw sib cuag) rau ATS uas muaj CB-rated tsuas yog 65% ntawm cov kev daws teeb meem uas muaj PC-rated. Txawm hais tias nws cov qauv tsim muaj 50% ntau qhov chaw txav mus los dua li cov chav uas muaj PC-rated, kev tsim qauv modular txo qhov nyuaj kho ib zaug, txo cov nqi zog ua haujlwm los ntawm 40%. (2) Kev Nqis Peev Zoo Tshaj Plaws rau Kev Hloov Kho Qhov Xwm Txheej ntawm Daim Ntawv Thov

CB-qib ATS qhia tau tias muaj txiaj ntsig zoo rau kev lag luam hauv cov xwm txheej tsis tseem ceeb xws li teeb pom kev zoo hauv kev lag luam. Tom qab siv CB-qib ATS, lub khw muag khoom tau txo qis qhov kev ceeb toom cuav los ntawm 82% thaum lub caij ntuj sov siv hluav taws xob ntau tshaj plaws, tiv thaiv kev poob hluav taws xob los ntawm kev tiv thaiv overload tsis ua haujlwm. Nws qhov kev sib phim meej ntawm cov yam ntxwv tiv thaiv nrog cov qauv thauj khoom ua rau lub sijhawm them rov qab ntawm kev nqis peev luv dua peb xyoos.

III. Kev Hloov Pauv ntawm Daim Ntawv Thov Ua Tau Raws Li Ntau Yam Kev Xav Tau

(1) Muaj zog hloov kho tau rau cov qauv fais fab

Cov ATS uas ntsuas CB tuaj yeem ua haujlwm ncaj qha ua cov hloov pauv pub mov hauv cov kab ke fais fab radial yam tsis tas yuav muaj cov khoom siv tiv thaiv ntxiv. Hauv cov qauv trunk-type, kev sib koom tes xaiv nrog cov hluav taws xob downstream ua rau muaj qhov yuam kev mus rau theem branch circuit. Piv txwv li, tom qab siv CB-rated ATS, lub Hoobkas tshuaj tau txo cov teeb meem hluav taws xob tsis ua haujlwm theem peb los ntawm 70%, ua rau lub kaw lus ntseeg tau zoo dua.

(2) Kev Ua Raws Cai ntawm Txoj Cai

Raws li tus qauv GB51348-2019 tshiab, cov khoom siv tiv thaiv hluav taws xav tau ATS nrog kev tiv thaiv luv luv thiab lub tswb ceeb toom overload. CB-rated ATS ua tau raws li qhov yuav tsum tau ua "overload alarm only" rau cov twj tua hluav taws thiab cov khoom siv zoo sib xws los ntawm kev teeb tsa cov chaw ceeb toom tsis-tripping. Ib qhov project hauv tsev kho mob uas siv cov kev daws teeb meem no tau pom kev txhim kho 50% hauv kev ua haujlwm tshuaj xyuas hluav taws.

Kev Txheeb Xyuas

Los ntawm kev tsim kev tiv thaiv sib xyaw ua ke, cov nqi siv tau zoo tshaj plaws, thiab kev ywj pheej ntawm daim ntawv thov, CB-rated ATS muab kev daws teeb meem fais fab uas pheej yig rau cov tsev lag luam, cov chaw ua haujlwm, thiab cov xwm txheej zoo sib xws. Nws qhov kev ua tau zoo ntawm kev nyab xeeb thiab kev siv nyiaj txiag zoo ua rau nws yog qhov kev xaiv zoo tshaj plaws rau cov tshuab fais fab uas tsis muaj zog. Nrog rau kev nce qib ntawm smart grid, lub peev xwm tiv thaiv digital ntawm CB-rated ATS yuav nthuav dav nws cov ciam teb ntawm daim ntawv thov.