Q: Tus kws tshaj lij engineer tau hais kom kuv rub "ob peb lub reactors." Kuv pom fiberglass cylinders nrog kov. Lawv yog dab tsi?
A: Cov no yog HV reactors - loj inductors. Lawv txuas nyob rau hauv series nrog lub cable los ua ib tug resonant circuit. Nov yog tib txoj hauv kev los sim cov kab ntev ntev.
Nws ua haujlwm li cas - lub viav vias analogy:
• Test transformer=koj thawb lub viav vias txhua lub voj voog. Koj txhais caj npab tau nkees sai.
• Resonant system=koj muab lub viav vias ib lub thawb ntawm lub sijhawm. Lub viav vias txuas ntxiv mus. Koj tsuas yog hloov lub zog poob rau kev sib txhuam.
Thaum siv SR:
|
Koj tab tom sim... |
Capacitance |
SR? |
Vim li cas? |
|
Cable ntev> 1 km |
> 0.2 μF |
✅ Xav tau |
Tsuas yog SR muab kev lag luam tam sim no |
|
Cable ntev> 10 km |
> 2 μF |
✅ Tsuas yog kev xaiv |
Test TX yuav xav tau 500+ kVA |
|
GIS long bus |
10-100 nF |
✅ Zoo |
Adjustable zaus tuav txhua yam |
|
Lub tshuab hluav taws xob stator |
1–5 μF |
✅ Zoo tshaj |
SR muab sine nthwv dej huv |
|
PT / CT / PT |
< 1 nF |
❌Ntau tshaj |
Test TX yog yooj yim dua thiab pheej yig dua |
Kwv yees tus nqi (tshiab, 2025):
• 60 kV / 2 A portable SR: $25,000–40,000
• 160 kV / 4 A (110 kV cable): $ 60,000–120,000
• 300 kV / 6 A (220 kV cable): $150,000–300,000
Vim li cas "stacked" - series vs parallel:
• Series=siab dua voltage (80 kV + 80 kV=160 kV)
• Parallel=siab dua tam sim no (2 A + 2 A=4 A)
• Ob leeg=series- ua ke ua ke
Pro cov lus qhia: Ib txwm nyeem daim ntawv teev npe. "80 kV / 2 A / 50 H"=80 kV rau hauv av, 2 A txuas ntxiv, 50 Henry inductance.