HZQH(12)-C CT PT Testing Bench

HZQH(12)-C CT PT Testing Bench

1. Cov ntsiab lus tseem ceeb

HGQH(12)-C ntsug xeem lub rooj ntev zaum yog ib tug tag nrho ntawm tsis siv neeg calibration khoom tsim los ntawm Huazheng Electric, mob siab rau calibrating tam sim no Transformers (CT) thiab muaj peev xwm Transformers (PT) nyob rau hauv lub hwj chim systems. Tag nrho lub cev muaj HGQA-C transformer calibrator, FY98 CT/PT load box, voltage regulation unit, standard current/voltage boosters, test wires and supporting calibration software. Nws txais yuav thib peb - tiam DSP ntse ntsuas tshuab raws li heterodyne ntsuas lub hauv paus ntsiab lus, ua tau zoo kov yeej kub thiab zaus cuam tshuam qhov tsis xws luag ntawm ib txwm impedance-theem kev sib piv circuits, thiab txhawb kev sim & ntawm- qhov chaw transformer pov thawj.

2. Core Safety Specifications

Txoj Cai Kev Nyab Xeeb yuav tsum tau ua

Tsuas yog cov kws tshaj lij uas muaj ntawv pov thawj tuaj yeem ua haujlwm, disassemble thiab kho lub rooj ntev zaum.

Kev ntseeg tau hauv av ntawm lub plhaub khoom siv yuav tsum tau ua ntej lub hwj chim -on; tsis txhob ntsaws / unplug nyob xeem xov tooj.

Kev txwv tsis pub ua haujlwm nyob rau hauv qhov chaw ntub, flammable & explosive ib puag ncig; khaws cov cuab yeej kom qhuav thiab huv si.

CT thib ob winding yuav tsum tsis txhob qhib -circuited; PT thib ob winding yuav tsum tsis txhob luv -circuited thaum kuaj.

Txiav tawm tag nrho cov khoom siv hluav taws xob ua ntej xaim, hloov cov khoom siv lossis kev saib xyuas; phim cov fuse thiab cov hlua hluav taws xob uas tau teev tseg.

High voltage terminals thiab kuaj kab nqa hluav taws xob; tsis txhob kov cov hlau nyob hauv qhov chaw tiv thaiv hluav taws xob.

3. Theoretical Foundation: CT & PT Taw Qhia

Tam sim no Transformer (CT)

Kev ntsuas CT: Hloov siab thawj tam sim no mus rau tus qauv 5A theem nrab tam sim no, muaj kev sib cais ntawm cov rwb thaiv tsev rau kev nyab xeeb, kev ntsuas kev sib koom ua ke rau txhua theem tam sim no, nrog cov chav kawm raug yog li ntawm 0.01 txog 5.

Kev tiv thaiv CT: Cov khoom siv tam sim no rau cov khoom siv hluav taws xob tiv thaiv hluav taws xob nyob rau hauv luv luv - Circuit Court faults; Qhov tseeb cim raws li 5P / 10P (5% / 10% tso cai yuam kev).

Lub hauv paus ntsiab lus ntawm kev ua haujlwm: ob qho tib si insulated windings; thawj kev sib txuas hauv series nrog lub zog hluav taws xob, theem nrab txuas nrog cov ntsuas ntsuas kom cais cov hluav taws xob siab.

Muaj peev xwm Transformer (PT)

Kauj Ruam down high grid voltage rau tus qauv qis theem nrab voltage (100V / 100 / √3V / 110V thiab lwm yam) rau kev ntsuas hluav taws xob, lub zog thiab lub zog thiab kev tiv thaiv relay.

Tsawg peev xwm (VA-level), thawj winding thaum uas tig mus rau hauv Circuit Court, theem nrab parallel mus rau meters/relays rau siab -voltage kev tiv thaiv.

Transformer Calibrator Classification

Hom kev sib piv ncaj qha: Test standard & tested transformer secondary signals ncaj qha; Kev ua haujlwm yooj yim, tab sis tsuas yog txwv rau kev thauj khoom ntau dua lossis sib npaug ntawm 1VA thiab txwv tsis pub ntsuas qhov tseeb.

Heterodyne ntsuas hom (cov khoom no): xam qhov yuam kev ntawm cov teeb liab sib txawv, tus kheej me me - cuam tshuam qhov yuam kev, cov chav kawm siv tau dav dav, cov nqi tsim khoom tsawg; txhawb tus kheej -calibration, polarity tsis siv neeg txiav txim, piv txwv yuam kev.

4. Qhov System Composition & Main Technical Parameters

4.1 Ua kom tiav System Cheebtsam

HGQA-C lub ntsiab calibrator (320 × 240 Lus Askiv LCD vaj huam sib luag, cov keyboard digital)

FY98 CT & PT load lub thawv

7kVA lub ntsiab voltage regulator + 2kVA zoo-tuning regulator tswj txee

Tus kheej- txhawb nqa tus qauv tam sim no / qhov chaw hluav taws xob, siab siab siab - cov kab ntsuas tam sim no

Computer calibration tswj software

4.2 Lub Rooj Zaum General Parameters

Lub hwj chim: AC220V ± 10%, 50Hz ± 10%

Qhov chaw ua haujlwm: 0 ~ 40 degree, RH Tsawg dua lossis sib npaug li 85% (25 degree), qhov siab<2500m

Regulator tso zis muaj peev xwm: 7kVA (0 ~ 250V, 30A), kho tau raws li qhov xav tau

Kev daws teeb meem: Zoo dua 0.04V

4.3 HGQA-C Calibrator Core Indicators

Kev ntsuas ntau

Hauv -theem tivthaiv: 0.0001 ~ 200.0%, daws teeb meem 0.0001%

Orthogonal Component (min): 0.001 ~ 999.9 Kev daws teeb meem: 0.001

Kev ntsuas tam sim no: 1% ~ 149% nyob rau hauv (1A / 5A CT)

Kev ntsuas hluav taws xob ntau: 5% ~ 200% rated Un (ntau tus qauv PT theem nrab voltages)

Accuracy: Class 2 (reserve Class 1 margin); harmonic suppression ratio >40dB ib

Cov haujlwm tseem ceeb

Nws pib polarity thim rov qab tswb, tsis raug hloov pauv piv tam sim no, dhau - tiv thaiv tam sim no

Tsis siv neeg hloov pauv, kaw -circuit demagnetization rau S-chav kawm CT

RS232 computer kev sib txuas lus interface, offline tus kheej -calibration, software upgradable

Dual zog siv hom:<15VA (with printer), <25VA (without printer)

Txhawb nqa cov khoom xeem: CT, PT, ob lub voj impedance & txais

4.4 FY98 Load Box Parameters

Fais fab kev xaiv: 0.8 / 1.0; zaus 50Hz, withstand voltage 2kV

Rated tam sim no: 1A / 5A; Lub zog hluav taws xob: 100V, 100 / √3V, 110V, 110 / √3V

CT load ntau: 2.5 ~ 60VA; PT load ntau: 1.25 ~ 158.75VA

Qhov tseeb: ± 3% ± 0.01VA; txhawb lub computer tsis siv neeg tswj & phau ntawv iav hloov

5. Test Functions & Wiring Modes

Lub rooj ntev zaum txhawb nqa 9 tus qauv ntsuas kev xaim hluav taws xob nrog rau daim duab kos duab:

CT calibration (tus qauv CT / tus kheej -calibration / bipolar CT)

PT calibration (tsawg muaj peev xwm / siab muaj peev xwm / tus kheej -calibration / bipolar PT)

Secondary voj impedance xeem

Secondary loop admittance test

Kev ceeb toom ua haujlwm tseem ceeb: Kho qhov hluav taws xob tswj hluav taws xob rov qab mus rau xoom ua ntej hloov lub zog thauj khoom kom tsis txhob muaj khoom puas tsuaj.

6. Calibration Software Function

Kev txhawb nqa transformer yuam kev tswj software ua raws li lub teb chaws metrological pov thawj cov qauv:

Txhawb nqa cov ntaub ntawv nkag lossis cov ntaub ntawv tsis siv neeg upload los ntawm calibrator

Tag nrho tsis siv neeg kuaj tswj, nws pib puv -load / lub teeb-load kuaj ntawm CT/PT

Tsis siv neeg cov ntaub ntawv txheeb xyuas, kev txiav txim yuam kev, tshaj tawm & ntawv pov thawj luam ntawv

Cov ntaub ntawv query, statistical analysis, backup & recovery, build-in operation tutorials

7. Peb hom kev ua haujlwm tswj

Computer tswj (pom zoo): PC software tag nrho tsis siv neeg ua haujlwm, pib thauj khoom hloov pauv, tsis siv neeg tshaj tawm cov ntawv tshaj tawm, phau ntawv qhia tsawg tsawg, tsim nyog rau kev ua raws li niaj zaus.

Lub rooj zaum tswj: Calibrator host tswj cov txheej txheem kuaj; phau ntawv thauj khoom lub thawv hloov kho, haum rau lub Hoobkas chaw kuaj xyuas.

Kev tuav tswj: Tag nrho phau ntawv hloov kho ntawm regulator thiab load gears, rau kev kuaj calibration thiab khoom debugging.

8. Kev ceev faj ua haujlwm

nruj me ntsis raws li cov kab kos duab; ua tiav kev tshuaj xyuas kab thiab kev pom zoo hauv av ua ntej lub hwj chim -on.

nruj me ntsis txwv tsis pub CT thib ob qhib Circuit Court thiab PT theem nrab luv luv Circuit Court thaum kuaj.

Teeb tsa kev sib cais rau thaj chaw sim kom tsis txhob muaj cov neeg ua haujlwm nkag mus.

Tsuas yog siv cov qauv ntsuas cov xov hlau sib txuas thiab cov khoom siv tam sim no raws li qhov xav tau los ntawm cov npe transformer.

Khaws cov khoom siv kom qhuav, corrosion- ib puag ncig dawb; so nrog cov ntaub mos muag, tsis txhob los nag thiab ntev - lub hnub raug tshav ntuj.

Tsis txhob disassemble lub txee yam tsis tau tso cai, txwv tsis pub lub warranty yuav siv tsis tau

1. Thaum twg kuv tuaj yeem tau txais nqe lus hais?

Koj tuaj yeem tiv tauj peb hauv online lossis xa cov lus nug. Peb feem ntau muab cov lus hais hauv 24 teev tom qab tau txais koj qhov kev thov.

2. Koj ua li cas tom qab - muag kev pabcuam rau cov neeg siv khoom txawv teb chaws?

Rau cov teeb meem tshwm sim nrog peb cov khoom, peb muab:

12-lub hlis lav lav (saib cov ntsiab lus hauv qab no).

Cov kev qhia hauv online rau kev daws teeb meem nyob deb.

Hloov cov khoom xa tuaj sai raws li koj xav tau.

Ntawm - kev txhawb nqa ntawm qhov chaw (yog tias xav tau): Peb cov kws ua haujlwm tuaj yeem mus txawv tebchaws los daws cov teeb meem tseem ceeb.

3. Lub sijhawm lav yog dab tsi?

Peb lub sijhawm lav tus qauv yog 12 lub hlis (1 xyoos). Thaum lub sijhawm no, peb muab:

Kev txhawb nqa dawb.

Hloov qhov chaw rau kev tsim khoom tsis raug.

Cov kev daws teeb meem haum rau koj qhov teeb meem tshwj xeeb.

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