Fais fab zaus resonant withstand voltage ntaus ntawv? Wuhan UHV tshwj xeeb hauv kev tsim khoomseries resonance, nrog ntau yam khoom xaiv thiab kev kuaj hluav taws xob. Nrhiavseries resonance, xaiv Wuhan UHV.
Fais fab zaus resonant withstand voltage ntaus ntawv
Covfais fab zaus resonance ntaus ntawvFeem ntau yog siv rau AC tiv thaiv qhov ntsuas hluav taws xob ntawm 6kV-500kV siab-voltage cross- txuas cables, 6kV-500kV transformers, generators, GIS thiab SF6 keyboards, thiab lwm yam hwj huam siab -voltage khoom xws li busbars, busbars thiab busbars. Ib qho khoom siv uas siv cov inductors tuned thiab load capacitors los tsim lub zog zaus zaus resonance thiab tau txais lub zog zaus ntsuas voltage. Series resonance kuaj cov cuab yeej siv dav hauv kev lag luam xws li lub zog, metallurgy, roj av, thiab tshuaj lom neeg engineering, thiab tsim nyog rau kev xa khoom thiab kev tiv thaiv kev ntsuas ntawm cov khoom siv hluav taws xob siab, cov khoom siv hluav taws xob siab.
L - inductance ntawm adjustable reactor CX - capacitance ntawm cov khoom kuaj
R - Sib npaug series tsis kam suav raws li qhov poob ntawm lub reactor adjustable, qhov dielectric poob ntawm cov khoom kuaj, thiab kev poob ntawm lub voj voog.
Kho qhov inductance ntawm lub reactor adjustable nyob rau hauv lub series Circuit Court kom nws inductance XL ntawm lub hwj chim zaus f yog sib npaug rau lub capacitance XCX ntawm lub load capacitor. Lub sijhawm no, ua tiav resonance tiav, thiab qhov inductance ntawm reactance yog inductance L ntawm qhov resonance point. Thaum lub Circuit Court yog siab resonant,
Lub load capacitance CX yog qhov qub tas li. Thaum L tau hloov kho kom ncav cuag qhov zoo li L0, IX hloov kho. Thaum tus nqi UC yuav tsum tau mus txog, qhov ntsuas hluav taws xob tiv thaiv pib.
Raws li ua tiav series resonance, lub hwj huam mov tsuas yog muab UJ los tsim IX, thiab lub zog excitation PJ=UJIX nrog COS Φ=1 kov yeej qhov sib npaug sib npaug active poob IX2R hauv Circuit Court, zoo siab thiab tuav ruaj khov resonance.Series resonanceyog ib tug resonance tshwm sim los ntawm voltage them los yog tsawg voltage excitation.
Cov yam ntxwv tseem ceeb ntawmfais fab zaus resonant withstand voltage ntaus ntawv
Due to full compensation of resonant reactive power, the power of the power supply and equipment is only less than 1/10 of the required capacity of the tested object (1/Q>10); Cov cuab yeej muaj lub ntim me me, lub teeb yuag, muaj peev xwm tso zis ntau, thiab yuav tsum muaj lub peev xwm me me. Nws yog pheej yig, yooj yim rau kev khiav lag luam, thiab kev nyab xeeb siv;
Series resonance yog qhov tam sim no filtering Circuit Court, uas ua rau tam sim no dhau los ntawm cov qauv kev sim pib qhov tseem ceeb tam sim no, thiab tus waveform distortion tus nqi (THD) ntawm cov zis voltage yog tsawg heev, uas yog superior rau tag nrho cov hom ntawm tam sim no AC withstand voltage khoom;
Qhov luv luv -circuit tam sim no tom qab flashover lossis tawg ntawm cov qauv kuaj tsuas yog 1/10 lossis tsawg dua ntawm qhov luv luv ua ntej-circuit test tam sim no (1/Q), uas tuaj yeem tiv thaiv kev nthuav dav ntawm kev puas tsuaj rau qhov chaw txhaum tom qab tawg;
Tam sim ntawd tom qab flashover, lub arc yuav cia li tua, thiab cov txheej txheem ntawm kev tsim lub resonant lub xeev voltage tom qab extinguishing lub arc yog kuj ntev (hauv vib nas this), uas yog ib tug khov kho- lub xeev txheej txheem uas tsis tau txiav txim siab voltage overshoot los yog qhov txaus ntshai ntawm resonance overvoltage nyob rau hauv microsecond theem thiab millisecond txheej txheem.
Ua ntej qhov kev ua haujlwm tuning
Txhawm rau kom muaj kev nyab xeeb thiab kev vam meej ntawm kev sim, thaum lub sij hawm series resonance withstand voltage test, nws yog ib qho tsim nyog yuav tsum tau ua ntej kho L kom ncav cuag tag nrho cov resonance L0 ntawm qhov pib qis excitation voltage UJ0 (feem ntau yog ob peb puas volts), thiab maj mam nce qhov voltage nyob rau hauv ib qho me me ntawm detuning℃ST kom txog rau thaum UC mus txog qhov predetermined withstand voltage tus nqi.