Txhawm rau ntsuas qhov rwb thaiv tsev ntawm 10kv transformer, 2500v megohmmeter yuav tsum tau siv.
Cov qauv tsim nyog rau rwb thaiv tsev tsis kam
1. Sib piv cov nqi hluav taws xob rwb thaiv tsev ntawm qhov ntsuas tej thaj chaw deb nrog tus nqi kawg thaum hloov mus rau qhov kub thiab txias, tus nqi no yuav tsum tsis txhob qis dua tus nqi kawg ntawm 30%.
2. Qhov nqus piv R60 / R15 (uas yog, tsom rau qhov piv ntawm cov rwb thaiv tsev tiv thaiv ntawm 60 vib nas this thiab 15 vib nas this) yuav tsum ntau tshaj 1.3 zaug ntawm 10 degree -30 degree
3. Qhov tsim nyog qhov tseem ceeb ntawm rwb thaiv tsev tsis kam ntawm 3-10kv transformer ntawm qhov kub sib txawv yog raws li hauv qab no:
| kub (degree) | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 |
| tus nqi zoo (MΩ) | 900 | 450 | 225 | 120 | 64 | 36 | 19 | 12 |
| Tus nqi qis tshaj (MΩ) | 600 | 300 | 150 | 80 | 43 | 24 | 13 | 8 |
Telemetry tej yaam num
1 Lub rwb thaiv tsev tiv thaiv ntawm high-voltage winding rau low-voltage winding thiab plhaub yog hu ua high-rau-low thiab hauv av.
2 Lub rwb thaiv tsev tsis zoo ntawm qhov qis-voltage winding rau high-voltage winding thiab plhaub yog hu ua qis rau siab thiab hauv av.
Kev ntsuas ntsuas
1. Tshem tawm cov khoom siv hluav taws xob ntsuas hluav taws xob los ntawm kev ua haujlwm, thiab siv cov kev ntsuas kev nyab xeeb xws li hluav taws xob hluav taws xob, kev tshuaj xyuas hluav taws xob, kev tso tawm, kev teeb tsa ntawm cov xaim hauv av ib ntus, thiab cov cim dai.
2. Tshem tawm qhov siab thiab qis voltage busbars ntawm lub transformer.
3. So lub siab thiab qis voltage porcelain bushings ntawm lub transformer huv si, ces cua 2-3 tig ib ncig ntawm lub plooj (porcelain skirt) ntawm txhua lub plooj (porcelain bushing) nrog liab qab tooj liab hlau los txuas lub siab thiab qis voltage porcelain bushings raws li.
4. Short-circuit lub high-voltage A, B, C (U, V, W) thiab low-voltage 0, a, b, c (n, u, v, w) terminals ntawm lub transformer nrog liab qab tooj liab kab.
5 Kev ntsuas qhov ntsuas qhov siab-voltage winding thiab qis-voltage winding thiab plhaub. Lub E ntawm lub megohmmeter txuas nrog qis-voltage winding thiab plhaub, G txuas nrog lub plooj (porcelain skirt) ntawm high-voltage winding porcelain bushing, thiab L yog txuas nrog high-voltage winding.
6 Kev ntsuas qhov deb ntawm qhov qis-voltage winding thiab high-voltage winding thiab plhaub. Lub E ntawm lub megohmmeter txuas nrog lub siab-voltage winding thiab plhaub, G txuas nrog lub plooj (porcelain skirt) ntawm qhov hluav taws xob porcelain bushing, thiab L yog txuas nrog lub low-voltage winding.
7. Thaum lub sij hawm telemetry, thawj zaug txuas E thiab G mus rau qhov khoom ntsuas, siv ib qho insulator los khaws L kab, thiab thaum lub megohmmeter ncav cuag 120 revolutions ib feeb, txuas L kab mus rau high-voltage winding (tsawg-voltage winding). , lub ' meter ' yog muab tso rau kab rov tav thaum lub sij hawm telemetry, thiab telemetry yog ua nyob rau ntawm qhov ceev ntawm 120 rpm. Tos kom lub koob ruaj khov rau ib feeb ua ntej nyeem ntawv, tshem tawm L kab, thiab tom qab ntawd nres lub ntsuas.
8. Lub winding yuav tsum tau tawm mus rau hauv av ua ntej thiab tom qab telemetry. Tom qab lub telemetry tiav lawm, tshem tawm cov theem-rau-theem luv luv Circuit Court thiab rov ua dua qhov qub xaim.