Lub luag hauj lwm ntawm low-voltage reactive fais fab nyiaj them. Ua ntej ntawm tag nrho cov, peb yuav tsum tau qhia meej lub tswv yim ntawm reactive hwj chim thiab paub qhov tseem ceeb ntawm reactive zog them. Kev them nyiaj rov qab hluav taws xob yuav tsum suav nrog kev them nyiaj rau lub zog siv hluav taws xob thiab kev them nyiaj rau lub zog sib haum xeeb. Nov yog qee qhov teeb meem ntsig txog thiab kev tshuaj xyuas txog kev siv hluav taws xob tsawg-voltage reactive zog rau koj siv thiab kawm tom haujlwm.
(1) Dab tsi yog cov qauv rau cov txee them nyiaj? Dab tsi yog cov qauv rau capacitor?
1) Cov qauv tsim nyog ntawm Ministry of Machinery:
JB/T 7115-2011 Tsawg-voltage lub cev muaj zog ntawm qhov chaw reactive fais fab nyiaj them nyiaj ntaus ntawv
JB 7113-1993 Tsawg-voltage shunt capacitor ntaus ntawv
2) Cov qauv tsim nyog ntawm Ministry of Hluav Taws Xob:
DL∕T 597-2017 Cov txheej txheem rau kev siv hluav taws xob tsawg-voltage reactive fais fab nyiaj txiag
3) National standard
GB/T 15576-2008 Tsawg-voltage ua tiav reactive fais fab nyiaj them nyiaj ntaus ntawv
GB/T 12747.1-2017 Kev kho tus kheej shunt capacitors rau AC lub zog hluav taws xob nrog lub nominal voltage ntawm 1000V thiab qis dua Ntu 1: General
GB/T 12747.2-2017 Kev kho tus kheej shunt capacitors rau AC lub zog hluav taws xob nrog lub nominal voltage ntawm 1000V thiab qis dua Ntu 2: Kev kuaj kev laus, kuaj tus kheej thiab kuaj kev puas tsuaj
(2) Vim li cas thiaj yuav tsum tau muab lub hwj chim capacitor them nyiaj rau hauv qhov system?
AC asynchronous motors, hluav taws xob vuam tshuab, induction cookers thiab lwm yam khoom siv dav siv hauv kev tsim khoom yog tag nrho cov inductive loads. Thaum lub sij hawm lub zog hloov dua siab tshiab, cov inductive loads ua rau qhov voltage thov rau lawv coj cov tam sim no los ntawm lub kaum sab xis. Lub cosine ntawm lub kaum sab xis no yog hu ua lub hwj chim. Thaum lub zog tseem ceeb, piv txwv li lub zog reactive, loj heev, yuav muaj cov teeb meem hauv qab no:
1) Txhim kho txoj kab tam sim no, ua kom cov kab poob, thiab khib nyiab hluav taws xob;
2) Vim tias qhov nce hauv kab tam sim no, thaum cov kab sib kis nyob deb, qhov hluav taws xob poob ntawm kab yuav loj, thiab qhov hluav taws xob tsawg dhau, uas yuav cuam tshuam rau kev siv cov khoom siv ib txwm muaj;
3) Rau transformers los yog generators, reactive hwj chim yog loj, thiab tam sim no tso zis los ntawm transformer los yog generator kuj loj. Feem ntau, cov zis tam sim no tau mus txog tus nqi ntsuas. Lub sijhawm no, yog tias cov khoom thauj tau nce ntxiv, nws yuav tsum tau ntxiv lwm lub tshuab hluav taws xob los yog lub tshuab hluav taws xob, uas ua rau cov khoom siv pov tseg; Tom qab them nyiaj rau lub capacitor, cov zis tam sim no ntawm lub transformer lossis lub tshuab hluav taws xob tau txo qis heev nyob rau hauv tib lub load, thiab lub load unit tuaj yeem tiv taus nws txawm tias nws nce. Tsis tas yuav ntxiv lwm lub tshuab hluav taws xob lossis lub tshuab hluav taws xob, uas tuaj yeem txuag tau cov peev txheej.
Duab
4) Cov neeg siv khoom lag luam uas muaj lub zog nruab nrab txhua hli hauv qab no 0.92 thiab cov neeg siv zoo tib yam hauv qab no 0.9 yuav raug nplua ntawm cov nqi sib txawv los ntawm lub tuam tsev tswj hwm lub hwj chim.
Ntxiv rau qhov sib npaug capacitor them nyiaj txee yog ib txoj hauv kev los them cov nqi hluav taws xob (tseem muaj txoj hauv kev xws li kev siv lub tshuab hluav taws xob overexcited synchronous, theem regulators, thiab asynchronous motor synchronization).
(3) Dab tsi yog cov qauv tam sim no rau lub hwj chim capacitors siv rau kev them nyiaj?
Ob qho qauv tam sim no yog:
GB/T 12747.1-2017 Kev kho tus kheej thaum uas tig mus capacitors rau AC lub zog hluav taws xob nrog nominal voltages ntawm 1000V thiab qis dua Ntu 1: General
GB/T 12747.2-2017 Kev kho tus kheej thaum uas tig mus rau lub tshuab hluav taws xob AC nrog cov nominal voltages ntawm 1000V thiab qis dua Ntu 2: Kev kuaj kev laus, kuaj tus kheej, thiab kuaj kev puas tsuaj