Q: Kuv puas yuav tsum nruab ib qho ntawm - kab DGA saib, lossis txuas ntxiv xa cov qauv roj mus rau lub chaw kuaj ntshav?
A: Txhua txoj kev muaj lub luag haujlwm sib txawv. Qhov kev xaiv nyob ntawm transformer criticality, txhaum keeb kwm, thiab pob nyiaj siv.
|
Cov txheej txheem |
Laboratory DGA |
Ntawm -line DGA Monitor |
|
Lub sijhawm |
Peb lub hlis twg rau txhua xyoo |
Nruam (txhua 30 feeb - 24 teev) |
|
Gas ntes |
Tag nrho 7+ gases (H₂, CH₄, C₂H₆, C₂H₄, C₂H₂, CO, CO₂, O₂, N₂) |
Feem ntau 5-9 gases (nws txawv ntawm tus qauv) |
|
Qhov tseeb |
Siab (lab GC: ± 1 ppm) |
Nruab nrab (± 5-15% ntawm kev nyeem ntawv) |
|
Trend rhiab heev |
Txwv los ntawm kev ua piv txwv zaus |
Zoo heev - captures load-induced hloov |
|
Tus nqi peev |
~ $ 50-100 rau ib qho qauv |
$5,000–$30,000 ib saib |
|
Tus nqi khiav haujlwm |
$200–1,000/xyoo (lub hlis twg) |
$500–2,000/xyoo (consumables, calibration) |
|
Zoo tshaj rau |
Cov nkoj me me (tsawg dua lossis sib npaug li 10 units); tsis yog - tseem ceeb |
>100 MVA, EHV/UHV; chaw taws teeb; paub -fault |
Qhov zoo tshaj plaws zoo - hybrid mus kom ze:
1. Nruab rau ntawm - kab saib nyob rau sab saum toj 10–20% feem ntau cov transformers tseem ceeb.
2. Siv peb lub hlis twg lab DGA ntawm tag nrho lwm cov units.
3. Hla- siv tau ntawm - kab saib nrog cov qauv kuaj txhua 6-12 lub hlis.
4. Yog tias pom muaj qhov ua txhaum loj, tam sim ntawd coj mus kuaj kuaj kom pom tseeb + tag nrho cov spectrum.