Ib qho 3-theem xeem teeb npog feem ntau ntawm kev tiv thaiv kev ua haujlwm niaj hnub - feem ntau hais txog li 80% ntawm hnub- mus rau- hnub ua haujlwm. Overcurrent thiab directional overcurrent relays, deb relays (ib zaug-kawg txhaum simulation), undervoltage/overvoltage, zaus, synchronism-check, reclosing thiab yooj yim transformer overcurrent schemes tag nrho cov kev ntsuam xyuas zoo kawg nkaus nrog peb tam sim no thiab plaub voltage raws.
Lub 6-phase set khwv tau nws qhov chaw thaum ob synchronized peb-theem kom muaj nuj nqis nyob rau tib lub sijhawm. Kev tiv thaiv sib txawv - transformer, generator, lub cev muaj zog thiab busbar sib txawv - yog cov ntaub ntawv classic: lub relay sib piv cov tam sim no nkag mus rau thaj chaw tiv thaiv (HV sab) nrog rau tam sim no tawm (LV sab). Simulating sab hauv thiab sab nraud faults thiab taug qab cov yam ntxwv txawv xav tau ib txhij, ntawm nws tus kheej theem - hloov peb-theem tam sim no ntawm ob sab.
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Kev ntsuas |
3-theem test set |
6-theem test set |
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Qhia tawm ntawm kev ua haujlwm niaj hnub |
~ 80%: overcurrent, nrug, voltage, zaus, pib-rov qab |
~ 20%: cov neeg xav tau hauv qab no |
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Kev tiv thaiv sib txawv |
Txwv tsis pub - tsis tuaj yeem pub ob sab nrog 3-theem tam sim no |
Tag nrho simulation ntawm transformer / busbar / generator / motor differential |
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Dual -kev ntsuas qhov deb |
Ua tau tab sis nrog kev sib haum xeeb |
Ib txhij ob- xaus kev simulation thiab theem- hloov pauv |
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Nqi & complexity |
Kev nqis peev qis dua, sib dua, kev cob qhia yooj yim dua |
Kev nqis peev siab dua - tau ua tiav los ntawm kev ua haujlwm sib txawv |
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Kev pom zoo |
Xaiv thaum sib txawv relays tsis nyob rau hauv koj cov ntaub ntawv xeem |
Xaiv thaum muaj kev tiv thaiv sib txawv hauv -tsev lossis npaj |
Lub ntsiab lus tseem ceeb:3-theem ua haujlwm rau ~ 80% ntawm kev sim niaj hnub; 6-theem yuav tsum tau ua kom raug qhov sib txawv-tiv thaiv simulation - yuav 6-theem yog tias sib txawv relays yog ib feem ntawm koj lub luag haujlwm.