Thawj Harmonic Suppression

Hauv kuv lub teb chaws 6-35KV ungrounded neutral fais fab tuag, electromagnetic voltage transformers (PTs) ntsib ob yam teeb meem:

(1) Overvoltages tsim los ntawm PT ferroresonance feem ntau ua rau cov rwb thaiv tsev sab hauv thiab cov rwb thaiv tsev tawm sab nraud, feem ntau ua rau muaj hluav taws xob loj - hluav taws xob hluav taws xob vim qhov kev sib tsoo tsis tu ncua lossis kev sib tsoo nce ntxiv.

(2) Arc grounding nyob rau hauv daim phiaj fais fab feem ntau hlawv tawm PTs.

SMR-LXQ thawj resonance tshem tawm cov cuab yeej tuaj yeem daws cov teeb meem saum toj no hauv plaub yam hauv qab no:

① Tshem tawm lossis damping PT ferroresonance overvoltages;

② Ua tau zoo tiv thaiv overcurrent ntws los ntawm PT winding thaum lub sij hawm sib tshuam arc grounding, tiv thaiv PT burnout;

③ Kev txwv tsis pub dhau tam sim no tsim nyob rau hauv PT thawj winding Circuit Court thaum ib qho -theem grounding tshwm sim, tiv thaiv PT fuse blowout;

④ Muab lub sijhawm ntev - tiv thaiv PT kev puas tsuaj tom qab ib zaug - theem av tshwm sim.

Peb lub tuam txhab SMR-LXQ thawj resonance tshem tawm cov cuab yeej nta ib qho kev txhim kho cov qauv tsim, pib los ntawm kev ua kom muaj peev xwm kub ntawm cov khoom sib haum xeeb. Lub harmonic suppressor siv SiC nrog cov khoom hluav taws xob zoo heev thiab ultra- cov khoom zoo li cov khoom siv hauv paus. Nws raug nias rau hauv qhov siab - ntom ntom, disc- zoo li tus dawb paug siv lub loj -tonnage xovxwm thiab ces sintered ntawm kub tshaj 1000 degrees Celsius nyob rau hauv ib tug txo qhov cua. Cov nplaim hluav taws kub hnyiab tau txais kev kho tshwj xeeb kom tiv taus lub hnub thiab nag, ua rau nws haum rau kev siv sab hauv tsev thiab sab nraum zoov. Nws yog qhov me me, lub teeb yuag, dissipates tshav kub sai, muaj lub zog siab, thiab yooj yim rau nruab.

1. Ua kom tiav kev tshem tawm ntawm Ferromagnetic Resonance

Nws tuaj yeem ceev ceev thiab ua tau zoo thiab tshem tawm ntau zaus- faib, lub zog zaus, thiab siab -frequency ferromagnetic resonances tshwm sim los ntawm cov yam ntxwv tsis zoo ntawm PT, hauv paus tiv thaiv kev puas tsuaj ntawm resonant overvoltages rau cov khoom siv.

2. Kev txwv tsis pub muaj kev cuam tshuam ntawm Arc Grounding Overvoltage

Thaum ib qho -theem arc grounding tshwm sim nyob rau hauv lub kaw lus, lub cuab yeej tuaj yeem txo qhov tam sim no ntws los ntawm PT nruab nrab taw tes, txwv tsis pub lub amplitude ntawm arc grounding overvoltage, thiab tiv thaiv qhov ua txhaum ntawm escalating.

3. Kev Tiv Thaiv Kev Tiv Thaiv Kev Ncua Sijhawm Tshaj Tawm ntawm Bus Transient Overvoltage

Rau tam sim no siab - lub zog cuam tshuam los ntawm kev ua haujlwm lossis kev sib tsoo, lub cuab yeej tuaj yeem nqus tau zoo thiab ua rau lawv, tiv thaiv PT thawj winding rwb thaiv tsev los ntawm kev puas tsuaj.

4. Cov khoom siv tseem ceeb tiv thaiv

Kev tiv thaiv ntawm Voltage Transformers (PTs): Tiv thaiv PT siab -voltage fuse tshuab los yog txawm tias PT burnout vim muaj ntau dhau resonant tam sim no.

Kev Tiv Thaiv Lwm Cov Khoom Siv Hluav Taws Xob: Tswj cov kab hluav taws xob hluav taws xob ruaj khov thiab tiv thaiv kev tiv thaiv hluav taws xob, hluav taws xob hluav taws xob, thiab lwm yam khoom siv hluav taws xob siab -.

1.Cov khoom no yog qhov tseem ceeb uas tsis yog-linear resistor; nws tus nqi tsis kam hloov nrog qhov siv voltage.

2.Raws li kev ua haujlwm ib txwm muaj: Cov cuab yeej muaj qhov ua haujlwm siab (txog li ob peb puas kiloohms), yuav luag tsis muaj kev cuam tshuam rau lub cev; PT tseem tuaj yeem ntsuas qhov ntsuas theem thiab kab hluav taws xob.

3.Thaum ferroresonance los yog arcing tshwm sim: Ib tug kuj high voltage yog generated ntawm PT nruab nrab point. Lub sijhawm no, cov cuab yeej damping paub qhov voltage, thiab nws qhov kev tiv thaiv tau txo qis, ua rau pom qhov tsis muaj zog -tsis kam.

4.Powerful damping: Qhov kev tiv thaiv qis no muab txoj hauv kev zoo rau lub zog resonant, ua kom muaj zog oscillations thiab absorbing resonant zog, yog li ceev ceev limiting overvoltage mus rau ib qho kev nyab xeeb, tiv thaiv lub resonance los ntawm sustained thiab ua rau nws ploj nyob rau hauv ib tug luv luv lub sij hawm.

Baoding Smail Electric Co., Ltd. tau tsim los rau Lub Xya Hli 1, 2009 thiab nyob hauv National High-tech Industrial Development Zone ntawm Baoding City, Hebei Province. Nws yog lub tuam txhab ua haujlwm siab - thev naus laus zis tsom rau kev tshawb fawb thiab kev tsim kho lub zog hluav taws xob automation, kev tiv thaiv relay thiab ntsuas ntsuas.