Misalai da ake magana a karkashin noma da kafin kawo muhimmanci na gajiya?

Lafi na tap changer yana da kyau a haɗa da takara. Flange a cikin lafi na yana da kyau a haɗa da takara, baa ba a gaba da zuma. Kalmomin kwalba suna da kyau a haɗa da lafi na da yanayi, kuma lafi na yana kawo da shiga bane. Alamar ƙarin da ake amfani da su a cikin lafi na yana da kyau, mai sauƙi da tattalin kasa ta wuya. Limit stops suna da kyau a duk fadada masu ƙarin.

Tambaya na tap changer yana da kyau, baa ba a gaba da zuma, kuma sabon inganci na yana da kyau. Wataccen tambayar na tap changer a harkar jirgin ruwa yana da kyau daidai. Idan an kawo tap changer a lokacin da ake yi kula, kuma ba a iya koyarshinsa kadan, ya kamata a ciye shi a cikin transformer oil da ke da kyau.

Duk insulating na tap changer yana da kyau, baa ba a gaba da zuma, kuma ana haɗa da shiga bane. Duk joints suna da kyau, baa ba a gaba da zuma, kuma ana haɗa da shiga bane.

Surfaicin duk fixed contact posts da moving contact rings yana da kyau, baa ba a gaba da zuma, kuma ana haɗa da shiga bane. Tsari na silver-plated layer a cikin surfaicin da ake amfani da su baa ba a gaba da zuma.

Kawo tap changer a duk ƙarin da ake amfani da su don duba alamun da ake amfani da su daga moving contact ring zuwa moving contact post, kuma spring condition. Duba pressure na contact—idanda ake amfani da feeler gauge, ba za a iya koyarshi a cikin contact surfaces. Contact resistance daga ƙarin da kaɗan da fixed contact posts baa zama 500 μΩ. Ba a duba, tap changer zai fi shi a kan original operating position.

Idan an kawo tap changer a lokacin da ake yi kula, ya kamata a yi markings da records da su da kyau. Ba a koyarshinsa, voltage ratio zai fi duba da shi.

A cikin preventive maintenance, tap changer zai fi kawo shekarar zuwa: kawo shi 10–15 kowane lokaci daga operating position zuwa ƙarin da ake amfani da su don cire zuma, oxidation films, ko abubuwan da ake amfani da su daga contact surfaces. Ba a kawo, zai fi shi a kan operating position kuma fi duba DC resistance, wanda ya kamata a zama (ya ni, baa ya zama mafi yawa da result na measurement na tsawon).