9 Yadda da Gudanar da Dalilai na Dukkukanin Jirgin Kuliya
1. Ma wani abin da aka yi wa kasa? Me kuma wasu irin abubuwa masu yawan amfani a cikin tattalin kasa?
Amsa: Tattalin kasa yana nufin sararin abubuwan bayanai da ake yi saboda hankali mai zurfi na mutum ko shirin kashi ko zafi, ko kuma idan an sami nasara a kan shirin kashi ko zafi. Dalilin haka shine inganta jama'a daidai, gagar da zafi da darajar, sanya hanyar zuwa, don in iya kawo karfin rayuwar daidai.
Wasu irin abubuwan da ake amfani su sun haɗa: bincike ta kasance, tsakake da take, koyar da faduwar shirya, sauya shirya don in koyar da shi, tabbatar da muhimman shirya, da kuma kawo karfi da shirya.
2. Idan wasu al'amuran da ba daidai ba suka faru, me kuma ya kamata a yi kasan circuit breaker?
Amsa: Ya kamata a yi kasan circuit breaker idan wasu al'amuran da ba daidai ba suka faru kamar haka:
Yawan zafi na bushing tare da halayyar kasa;
Halayyar kasa a kan circuit breaker mai oil;
Dukuyi daga arc-extinguishing chamber ko halayyar kasa a kan minimum-oil circuit breaker;
Yawan zafi mai yawa a kan oil circuit breaker, tare da level na oil ba a gano ba;
Yawan gas mai yawa a kan SF₆ chamber, tare da signal na operation lockout;
Karkashin "hissing" wanda ya nuna failure na vacuum a kan vacuum circuit breaker;
Rahoton da hydraulic pressure ta zama zero a kan operating mechanism;
Kudin enclosure, yawan kafa mai yawa, karshen lalle, ko dukuyi.
3. Idan wasu al'amuran da ba daidai ba suka faru, me kuma ya kamata a yi kasan main transformer?
Amsa: Ya kamata a yi kasan main transformer idan wasu al'amuran da ba daidai ba suka faru kamar haka:
Tsunun mai yawa ko halayyar kasa, ko kuma sunan cracking da spark discharge;
Top oil temperature ya fi karamin tarihin da aka rarraba da shi da 10°C a cikin hanyar load, temperature, da cooling conditions, tare da temperature na oil ya ci gaba (tabbatar da temperature gauge ya kunshi);
Kudin oil conservator ko explosion-proof pipe tare da dukuyi (tabbatar da breather passage ya kunshi);
Yawan color na oil, tare da carbon particles suka faru a kan oil;
Kudin bushing tare da halayyar kasa;
Yawan zafi mai yawa tare da level na oil a kan conservator da Buchholz relay ba a gano ba;
Transformer ya faru;
Al'amuran da ke neman kasa a cikin "Infrared Thermography Work Standards."
4. Idan wasu al'amuran da ba daidai ba suka faru, me kuma ya kamata a yi kasan current ko voltage transformer?
Amsa: Ya kamata a yi kasan current ko voltage transformer idan wasu al'amuran da ba daidai ba suka faru kamar haka:
Halayyar kasa a kan transformer;
Shiga mai kuka, dukuyi, ko dukuyi a kan oil;
Kudin bushing ko flashover discharge;
Temperature na transformer ya ci gaba;
Yawan zafi mai yawa.
5. Me kuma ya kamata a yi kasa da circuit breaker da hydraulic mechanism idan hydraulic pressure ta zama zero a lokacin bayanai?
Amsa: Idan hydraulic pressure na circuit breaker da hydraulic mechanism ta zama zero saboda hankali a lokacin bayanai, ya kamata a yi kasa kamar haka: Kafin, amfani da mechanical lockout plate don in tabbatar da circuit breaker a kan closed position, sannan kasa control power fuse.
Idan akwai bypass circuit breaker, immin yi hanyar bayanai don in koyar da shirya a kan bypass, sannan kasa disconnect switches a kan biyu na circuit breaker da hankali, sannan duba dalilin hankali;
Idan ba a ku da bypass circuit breaker ba, kuma ba a gani koyar da shirya, za a iya yi bayanai a lokacin da circuit breaker ta tabbatar da mechanical lock.
6. Me kuma ya kamata a yi kasa da circuit breaker da hydraulic mechanism idan an sanar da "trip lockout" signal?
Amsa: Idan an sanar da "trip lockout" signal a kan circuit breaker da hydraulic mechanism, ya kamata a duba hydraulic pressure value. Idan pressure ta zama ciki trip lockout threshold, kasa oil pump power supply, amfani da mechanical lockout plate, kasa relevant protection trip links, siffar da on-duty dispatcher, da kuma yanayin koyar da shirya.
7. Idan wasu al'amuran da ba daidai ba suka faru, me kuma ya kamata a yi kasan surge arrester?
Amsa: Ya kamata a yi kasan surge arrester idan wasu al'amuran da ba daidai ba suka faru kamar haka:
Surge arrester ya faru ko yawan temperature mai yawa, tare da cracks a kan porcelain housing;
Leakage current ya fi karamin tarihin da aka rarraba da shi da 20%, ko inter-phase difference ya ci 20% a kan current reading.
8. Me kuma ya kamata a yi kasa da transformer idan level na oil ya zama mafi yawa ko oil ta faru daga conservator a lokacin bayanai?
Amsa: Kafin, duba cewa load na transformer da temperature su ne daidai. Idan su ne, level na oil mai yawa na iya kasance saboda blockage na breather ko oil-level gauge. Ba da idan dispatcher ya kunshi, sanya heavy gas protection zuwa alarm mode, sannan clear breather ko oil-level gauge. Idan oil overflow ita saboda temperature mai yawa, yi oil draining.
9. Me kuma ya kamata a duba da koyar da shirya idan an sanar da overloading alarm a kan transformer a lokacin bayanai?
Amsa: Operating personnel ya kamata a duba cewa currents na transformer a cikin biyu su fi karamin limits da aka rarraba, sannan siffar da magnitude na overload zuwa on-duty dispatcher. Duk da haka, tabbatar da cewa level na oil da temperature su ne daidai, sanya all cooling units, sanya hanyar bayanai don overload operation, yi regular patrols, da kuma increase special inspections idan ya kamata.
