Kev Tshawb Fawb Txog Tam Sim No Transformers Thiab Voltage Transformers

Test transformers yog cov cuab yeej tseem ceeb rau tam sim no transformers, voltage transformers, lub zog thiab lub zog ntsuas thiab ntsuas. Lawv qhov tseeb ncaj qha cuam tshuam rau kev ntseeg siab ntawm cov ntaub ntawv xeem. Txhawm rau kom ntseeg tau qhov tseeb thiab txhim khu kev qha thiab kev ntsuas, nws yog ib qho tsim nyog yuav tsum tau ua qhov ntsuas ntsuas ua ntej muab tso rau hauv kev siv. Cov cuab yeej tshwj xeeb siv los ntsuas qhov tam sim no transformer thiab voltage transformer hauv kev sib xyaw ua ke transformer yog lub transformer calibrator. Tam sim no, ntau yam thiab hom transformer calibrators siv nyob rau hauv Suav teb yog complex, tab sis txawm yog siv txoj kev sib txawv txoj cai los yog tam sim no sib piv txoj cai, lawv cov ntaub ntawv raug los yog tsis muaj feem xyuam rau lub nrhiav kom tau muaj nuj nqi mus txawv degrees. Yog li ntawd, nyob rau hauv cov txheej txheem calibration ntawm kev sib xyaw transformers, nws yog ib qho tsim nyog yuav tau xyuam xim rau cov teeb meem hauv qab no.
Kev xaiv ntawm SF6 gas qualitative leak detector rau kev sim ib puag ncig yog me me, hloov tau yooj yim, thiab siv tau yooj yim dua. Piv nrog rau lwm yam khoom, lub taub hau sensor tau txhim kho nws qhov yooj yim, kev ntseeg tau, thiab kev pabcuam lub neej; Streamlined npaj, zoo nkauj thiab xis.
Nws yog ib qho tsim nyog yuav tsum ua kom tau raws li cov cai ntawm cov kev cai calibration rau ib puag ncig ntawm transformer calibration, uas yog, ambient kub yuav tsum nyob nruab nrab ntawm 10 thiab +35 degree, thiab cov txheeb ze av noo yuav tsum tsis txhob ntau tshaj 80%. Qhov kev kuaj pom qhov txhaum tshwm sim los ntawm electromagnetic teb nyob ib ncig ntawm qhov chaw ua haujlwm yuav tsum tsis pub tshaj 1/20 ntawm qhov kev tso cai txhaum cai ntawm kev sim transformer. Qhov kev kuaj pom qhov yuam kev tshwm sim los ntawm tam sim no transformers, voltage regulators, high tam sim no cables, thiab lwm yam. siv rau calibration hauj lwm yuav tsum tsis txhob ntau tshaj 1/10 ntawm qhov tso cai yuam kev ntawm lub transformer kuaj. Yog li ntawd, nyob rau hauv lub chaw soj nstuam, kev npaj tsim nyog yuav tsum tau ua kom muaj feem xyuam rau kev tshawb nrhiav thiab cov khoom siv hluav taws xob, txawm tias cov khoom siv hluav taws xob muaj zog. Txwv tsis pub, lawv yuav ua rau pom qhov yuam kev tseem ceeb hauv kev calibration ntawm transformers. Feem ntau hais lus, qhov kev ncua deb ntawm qhov tam sim no regulator, siab tam sim no hlau, thiab transformer calibrator yuav tsum yog tsawg kawg yog 3m. Txhawm rau txo qhov kev kuaj pom tsis raug tshwm sim los ntawm cov kab hluav taws xob siab tam sim no, nws raug nquahu kom xaiv cov kab hluav taws xob uas muaj cov kab sib txuas loj dua li ntau li ntau tau.
2. Xaiv txoj kev xaim kom raug
Feem ntau ntawm transformer calibrators yog npaj raws li qhov sib txawv nrhiav kom tau txoj kev. Yog li ntawd, thaum txuas cov kev sim transformer mus rau tus qauv transformer, nws yog tsim nyog los xyuas kom meej qhov tseeb ntawm cov hlau. Txwv tsis pub, qhov sib txawv ntawm qhov sib txawv tuaj yeem siv qhov sib npaug ntawm ob qhov tam sim no (voltages) es tsis txhob sib txawv ntawm lawv. Qhov no yuav hlawv tawm lub calibration ntaus ntawv. Lub hauv paus yog vim li cas rau qhov hluav taws kub ntawm cov khoom siv hluav taws xob hauv qee qhov kev ntsuas hluav taws xob hloov pauv yog vim muaj kev cuam tshuam ntawm kev xaim thiab kev siv tsis raug ntawm cov hluav taws xob loj lossis cov hluav taws xob siab. Nws tseem yuav tsum tau xav txog qhov concave convex tej zaum terminals ntawm lub transformer nyob rau hauv thaiv. Rau qhov tam sim no transformer, tsuas yog thaum lub L1 davhlau ya nyob twg hauv nws thawj Circuit Court thiab K1 davhlau ya nyob twg nyob rau hauv nws thib ob Circuit Court nyob ze rau hauv av muaj peev xwm, nrhiav tau cov tam sim no txhaj los ntawm lub L1 davhlau ya nyob twg thiab tam sim no tso zis los ntawm lub K1 davhlau ya nyob twg yog qhov tseeb txhaum ntawm lub transformer. Rau lub tshuab hluav taws xob hluav taws xob, nws cov X thiab X terminals yog qhov muaj peev xwm tsawg, thaum nws cov A thiab A terminals muaj peev xwm loj. Thaum lub sij hawm calibration, A davhlau ya nyob twg ntawm tus qauv transformer yog luv luv Circuit Court rau A davhlau ya nyob twg transformer kuaj, thiab qhov thib ob voltage sib txawv yog coj ntawm lub X davhlau ya nyob twg ntawm ob transformers. Yog tias lub davhlau ya nyob twg tam sim no thim rov qab, nws yuav ua rau muaj qhov tsis zoo.
Nyob rau hauv cov ntsiab lus, nyob rau hauv lub calibration ntawm transformers, peb yuav tsum tsis txhob swapping lub L1 thiab K1 terminals ntawm tam sim no transformers nrog lub L2 thiab K2 terminals; Hloov cov A thiab A terminals ntawm lub voltage transformer nrog X thiab X terminals.
Tuav cov teeb meem hauv av thaum kuaj xyuas
Thaum siv transformer calibrator rau transformer calibration, nws yog ib qho tsim nyog yuav tsum ua kom lub Circuit Court ntawm transformer calibrator tsis tu ncua ntawm lub peev xwm tsawg los txo nws cov to hauv av. Txawm li cas los xij, rau tam sim no transformers, thaum siv qhov sib txawv sib piv txoj kev rau calibration, nws tsis raug tso cai rau hauv av K1 davhlau ya nyob twg. Yog li ntawd, nyob rau hauv tus txheej txheem ntawm transformer calibration, peb yuav tsum tau xaiv ib tug tsim nyog grounding taw tes raws li cov tswv yim tej yam kev mob ntawm lub Circuit Court. Cov kev ntsuas hauv av feem ntau zoo yog:; Ruaj ntseg hauv av lub qhov rooj dav hlau qhov rooj teeb tsa ntawm nws lub vaj huam sib luag.
4 Load matching
Cov yam ntxwv txhaum ntawm tam sim no transformers thiab voltage transformers yog hloov tau heev nyob rau hauv cov nqe lus ntawm load impedance (los yog admittance). Thaum lub sijhawm ua pov thawj, kev txiav txim siab tsis raug tuaj yeem tshwm sim vim qhov kev xaiv tsis sib xws ntawm cov qauv transformers. Yog li ntawd, nws yog ib qho tsim nyog kom phim lub load ntawm tus qauv transformer thiab cov kev sim transformer nyias, thiaj li hais tias qhov tseeb load lawv muaj peev xwm dais nyob rau hauv cov ntaub ntawv pov thawj Circuit Court yog sib npaug zos rau cov rated load ntawm lub transformer. Vim hais tias lub calibration Circuit Court twb tsim ib feem ntawm lub load, ib tug internal load soj ntsuam yuav tsum tau nqa tawm nyob rau hauv lub calibration circuit. Raws li qhov tsis sib xws ntawm lub thawv ntim khoom, xaiv cov xov hlau uas tsim nyog thiab ua kom raug raws li lawv ua ntej kev ua haujlwm tuaj yeem mus. Ua ntej txhua qhov calibration, nco ntsoov tig txhua lub pob qhov rooj kom tiv thaiv kom tsis txhob xoob thiab tawg.
5. Tsim nyog xaiv qhov hloov pauv ntawm lub calibrator
Vim tias lub tshuab ntsuas hluav taws xob hloov pauv muaj ntau yam haujlwm, nws yog qhov tsim nyog yuav tsum xaiv qhov kev hloov pauv thiab qhov tsim nyog thaum kuaj xyuas lub tshuab hloov pauv, txhawm rau kom tsis txhob muaj tib neeg yuam kev los ntawm kev ua haujlwm tsis raug thiab txo qhov kev tshawb pom qhov yuam kev los ntawm lub calibrator.
6 Kev tshuaj xyuas qhov tshwm sim
Kev tshuaj xyuas qhov tshwm sim yog kev soj ntsuam pom ntawm qhov chaw ntawm kev sim ua ke transformer los ntawm cov neeg ua haujlwm calibration. Txawm hais tias yooj yim heev, nws yog ib qho tseem ceeb thiab tseem ceeb. Lub hom phiaj tseem ceeb ntawm theem no yog txhawm rau txheeb xyuas cov teeb meem saum npoo av thiab daws lawv kom raug. Thawj qhov tseem ceeb tshaj plaws yog txhawm rau txheeb xyuas qhov tseeb ntawm cov cim npe npe txhawm rau txhawm rau muab qhov tseeb tsis raug rau calibration. Tom ntej no, xyuas qhov xwm txheej ntawm cov pob qhov rooj davhlau ya nyob twg thiab cov cim polarity. Rau qhov sib txawv ntawm qhov sib txawv transformers, txoj kev xaim rau qhov sib txawv yuav tsum tau kuaj xyuas.
7 Kev txiav txim siab ntawm rwb thaiv tsev tsis kam
Siv lub megohmmeter los ntsuas qhov rwb thaiv tsev ntawm txhua qhov cua thiab nruab nrab ntawm windings thiab hauv av.
8 Lub zog zaus tiv taus qhov ntsuas hluav taws xob
Lub zog zaus tiv taus qhov ntsuas hluav taws xob, suav nrog lub zog zaus tiv thaiv qhov ntsuas hluav taws xob thiab ntsuas qhov ntsuas hluav taws xob. Nws yog ib qho tsim nyog yuav tsum tau ua raws li cov kev cai tseem ceeb thaum lub sij hawm lub hwj chim zaus tiv thaiv voltage test.
9 kev ntsuam xyuas kev sib deev
Txawm hais tias nws yog tam sim no transformer lossis voltage transformer, yog tias qhov polarity txuas tsis raug, nws yooj yim rau hlawv tawm qhov ntsuas. Yog li ntawd, ua ntej kev txheeb xyuas qhov txhaum, nws qhov tseeb yuav tsum tau kuaj xyuas ua ntej. Txoj kev tshuaj ntsuam tuaj yeem yog txoj kev sib piv lossis DC txoj kev. Feem ntau, lub ntsuas ntsuas ntsuas muaj qhov ntsuas qhov ntsuas hluav taws xob thiab flashing muaj nuj nqi. Thaum txoj kev sib txuas yog qhov tseeb thiab qhov ntsuas qhov ua tau zoo tseem ua haujlwm, nws qhia tau tias muaj teeb meem sab hauv nrog rau qhov ntsuas transformer. Hauv qhov no, koj tuaj yeem thim rov qab polarity thiab sim dua. Cov txheej txheem calibration rau ib qho kev hloov pauv tsis tuaj yeem hla, txwv tsis pub nws yuav ua rau muaj teeb meem cuav.
10 demagnetization
Cov tub ntxhais hlau ntawm lub tshuab hloov tam sim no feem ntau muaj ob hom khoom, uas yog hlau nickel alloy thiab silicon steel ntawv. Cov txheej txheem demagnetization thiab cov tseev kom muaj rau tam sim no transformers nrog cov ntaub ntawv sib txawv thiab cov qauv qauv sib txawv. Rau tam sim no transformers nrog hlau npib tsib xee alloy cores, siv lwm yam qhib Circuit Court demagnetization feem ntau ua rau tsis muaj peev xwm pib lub excitation tam sim no, yog li kaw-voj demagnetization yog nyiam. Tam sim no transformer nrog silicon steel ntawv raws li cov tub ntxhais hlau tuaj yeem siv txoj kev kaw-voj demagnetization lossis qhib Circuit Court demagnetization txoj kev. Rau tam sim no transformers nrog qhov ntsuas ntawm 0.2 lossis siab dua, nws raug nquahu kom siv txoj kev kaw-voj demagnetization.
11. Tshawb xyuas kev ua neej nyob
Thaum siv lub transformer calibrator rau calibration los yog kuaj, nws yuav tsum tau xyuas kom meej tias lub xeem Circuit Court mus txog ib tug txaus siab ntawm yooj. Thaum lub sij hawm kuaj cov txheej txheem, txhawm rau tiv thaiv lub ammeter los ntawm qhov cuam tshuam ntawm cov cua sov ntau dhau, nws qib kev ua haujlwm yuav tsum tau maj mam nce ntxiv rau kev sim kom txog thaum cov kab kev ua haujlwm nce mus txog qib uas yuav tsum tau ua rau calibration thiab nres.
Qhov yooj yim hais saum toj no yog qhov sib txawv ntawm qhov sib tham txog qhov yooj yim ntawm cov ntsuas ntsuas thiab ntsuas. Dab tsi tau tham ntawm no tsis yog kev ua haujlwm ntawm kev sim transformer, tab sis yog qhov kev ua haujlwm ntawm qhov ntsuas hluav taws xob.
12 Kev txiav txim yuam kev
Thaum kuaj pom qhov tsis raug, cov qauv tsim nyog transformers thiab teem sijhawm thiab cov cuab yeej ntsuas yuav tsum raug xaiv raws li qib raug thiab kev tswj hwm ntawm kev sim ua ke transformer, thiab cov xaim yuav tsum raug thiab tsis muaj qhov yuam kev. Kev nce thiab poob ntawm tam sim no (voltage) yuav tsum tau ua kom zoo thiab maj mam.
13. Nres qhov thib ob qhib Circuit Court ntawm tam sim no transformer
Rau feem ntau tam sim no transformers, muaj ntau lem nyob rau hauv lub thib ob winding. Raws li cov kev ua haujlwm tam sim no, ib zaug ib qho kev qhib hluav taws xob thib ob tshwm sim, nws yuav tsim qhov hluav taws xob qhib hluav taws xob siab nyob rau hauv qhov thib ob winding, ua rau muaj kev nyab xeeb ntawm cov khoom siv thiab cov neeg ua haujlwm. Yog li ntawd, thaum kuaj tam sim no transformers, nws yog ib qhov tsim nyog yuav tsum tsis txhob tsim ib tug thib ob qhib Circuit Court.
14 lub voj voog tshuaj xyuas thiab kev sib hloov
High voltage transformers nyob rau hauv lub lag luam yuav tsum tau tig raws sij hawm thiab nyob rau hauv lub chaw soj nstuam calibration. High voltage transformers tuaj yeem kuaj xyuas ntawm qhov chaw raws li lub sijhawm ua haujlwm. Raws li cov kev cai ntawm DL448-91, calibration thiab rotation voj voog ntawm high-voltage transformers yuav tsum tau tig los yog soj ntsuam ntawm qhov chaw tsawg kawg ib zaug txhua 10 xyoo; Tsawg voltage tam sim no transformers yuav tsum tau calibrated los yog tig tsawg kawg ib zaug txhua 20 xyoo.