250 kVA Liquid-Immersed Transformer: Daim ntawv thov hauv Factories thiab Commercial Centers

Txheej txheem cej luam

Lub 250 kVA kua-immersed transformer pab lub zog faib cov kev xav tau ntawm nruab nrab- cov chaw tsim khoom thiab cov chaw lag luam, nce qib nruab nrab voltage mus rau qib siv 0.4 kV. Kev tsim thiab kev sim ua raws li IEC 60076 thiab GB 1094. Cov lus qhia no suav nrog cov xwm txheej ntawm daim ntawv thov, qhov ntsuas qhov loj me, thiab kev teeb tsa thiab kev saib xyuas qhov tseem ceeb rau qhov ntsuas no.

Hom Specifications

Rated zog: 250 kVA

Cov chav kawm Voltage: 10 kV / 11 kV / 20 kV thawj, 0.4 kV theem nrab

Kev sib txuas pab pawg: Dyn11

Cua txias: ONAN

Kev siv poob rau S11 hom ntawm 20 kV chav kawm: tsis muaj-load poob 400 W, load poob 3350 W, tsis yog-load tam sim no 1.2%

Daim ntawv thov Scenario

Nruab nrab- cov chaw tsim khoom

Lub Hoobkas nrog lub rooj cob qhia hauv pem teb ntawm ob peb txhiab square metres thiab qhov kev thov siab tshaj plaws ntawm 200 thiab 280 kVA yog qhov haum. Loads muaj xws li cov kab ntau lawm, compressors, twj, thiab teeb pom kev zoo. Chav tsev feem ntau yog ntsia rau hauv chav tsev transformer tshwj xeeb lossis ib qho chaw me me.

Cov chaw lag luam

Cov khw muag khoom, cov khw muag khoom loj, thiab cov khw me me siv 250 kVA chav kawm rau lub hauv paus load: teeb pom kev zoo, tub yees, escalators, thiab cov khoom siv xauj tsev. Cov kua -immersed tsim muab qhov kub thiab txias thaum lub sijhawm ua haujlwm ntev ntawm cov lag luam muag khoom.

Mixed-siv thiab chaw ua haujlwm

Cov tsev kawm ntawv, cov chaw kho mob, thiab cov chaw hauv zej zog nrog cov khoom nruab nrab thiab kev xav tau kev ntseeg siab siv qhov kev ntsuas no ua cov khoom tseem ceeb lossis ua cov khoom noj khoom haus thaub qab nrog lub tshuab hluav taws xob hloov pauv.

Sizing thiab Load Planning

Ntsuas qhov xav tau siab tshaj plaws nrog lub logger ua ntej sizing, qhov twg ua tau.

Siv qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txuas; lub transformer feem ntau ua haujlwm ntawm 60-80% ntawm kev ntsuas rau kev ua haujlwm thiab lub neej.

Ntxiv qhov kev loj hlob ntawm 10-20% qhov twg lub xaib xav kom nthuav dav.

Yog tias qhov kev thov tsis tu ncua mus txog 250 kVA, xav txog 315 kVA chav tsev es tsis txhob khiav lub transformer ntawm tag nrho cov load.

Kev teeb tsa thiab kev nyab xeeb

Ventilate chav transformer kom qhov kub thiab txias nyob twj ywm nyob rau hauv lub tsim txwv.

Cais lub transformer los ntawm cov khoom siv combustible thiab muab cov roj ntim cov kev cai yuav tsum tau.

Lub ntiaj teb lub tank thiab nruab nrab kom raug; haum surge arresters ntawm HV sab rau cov khoom siv nyiaj siv ua haujlwm.

Muab kev nkag tau meej meej rau kev tshuaj xyuas, ntsuas roj, thiab kev ua haujlwm ntawm lub tshuab hluav taws xob.

Kev tu thiab saib xyuas

Xyuas cov roj theem thiab kub txhua hli.

Kev ntsuas roj txhua xyoo nrog cov tshuaj yaj yeeb yaj kiab thiab kuaj lub cev raws li IEC 60422.

Xyuas qhov nruj ntawm kev sib txuas thiab bushing mob thaum lub sij hawm kaw txhua xyoo.

Sau cov ntaub ntawv thauj khoom kom pom ntev - lub sij hawm drift mus rau qhov ntsuas qhov txwv.

Cov lus nug nquag

Kuv yuav paub li cas yog tias 250 kVA yog qhov loj?

Xam qhov kev thov siab tshaj plaws nrog ntau hom kev sib txawv; Yog tias qhov tshwm sim ntawm 200 thiab 280 kVA nrog kev loj hlob me me, 250 kVA yog qhov tsim nyog.

Lub 250 kVA puas tuaj yeem pub ob lub Hoobkas thiab chaw ua haujlwm?

Yog lawm, tab sis khaws lub chaw ua haujlwm ntawm qhov sib cais qis -voltage feeder thiab tiv thaiv nws kom tsis txhob cuam tshuam lub chaw ua haujlwm.

Puas yog qhuav- hom transformer zoo dua rau lub chaw lag luam?

Qhuav- hom units raug xaiv qhov twg cov lej hluav taws txwv txwv cov roj hauv tsev; txwv tsis pub cov kua -immersed unit yuav siv tau ntau dua thiab ua tau zoo dua ntawm qhov ntsuas no.

Qhov kev pab cuam lub neej yog dab tsi?

Nrog kev saib xyuas kom zoo thiab kev thauj khoom nruab nrab, 20-25 xyoo yog qhov zoo rau cov khoom siv hluav taws xob rau cov khoom siv hluav taws xob.

Puas yog pawg sib txuas tseem ceeb rau kev sib xyaw ua ke?

Yog lawm, Dyn11 ua haujlwm tsis sib npaug ib zaug -theem loads zoo dua Yyn0 thiab ua kom qhov nruab nrab voltage ruaj khov.

Dab tsi spares yuav tsum khaws cia?

Spare fuses, gaskets, sampling kit, thiab thermometer; qhov seem tsawg-voltage breaker yog qhov tseem ceeb rau qhov chaw tseem ceeb.