Gwargwadon kumbin kofin kashi zai iya a yi bila tushen ƙarin bayanai.

Masu shi ne suka abin da suke kawo canza da karamin voltage da karamin amfani a kan al'amuran electromagnetic induction. A cikin masana'antar tafiyar da kuma kudin karamin amfani, masu shi ne suka abin yana da muhimmanci wajen kawo karfin da kuma kudin voltage don ya gaba lalacewa a lokacin da ake amfani. Misali, a kasashen aiki suna samun karamin amfani a kan 10 kV, wanda a nan za a kudan zuwa low voltage ta hanyar masu shi ne suka abin don amfani a cikin kasar. Yanzu, zaka iya fahimtar wasu hanyoyi masu shi ne suka abin da ake amfani a cikin ina bincike.

1. Hanyar Binciken Ta Annabi

Hanyar binciken ta annabi yana nufin wajen amfani da matafi na biyu don ina bincike watakan abin da ke aiki. Ana iya duba wasu ingantaccen aiki kamar discoloration, deformation, displacement, cracking, loosening, sparking, smoking, oil leakage, broken strands ko broken conductors, flashover marks, foreign object accumulation, corrosion, ko contamination. Saboda haka, hanyar binciken ta annabi yana cikin manyan hanyoyi masu amfani a cikin ina bincike abin da ke aiki.

2. Hanyar Binciken Ta Annabi (Smell Test)

Idan insulatin materials a cikin abin da ke aiki suna sauya, suna kare birnin da ba a si ba a jirgin sama. Masu ilimi suna iya duba wannan birni na musamman a cikin ina bincike. Idan ana iya samun wannan birni, mafi bayanin ya zama da ya kara ina bincike abin da ke aiki don ina samun watakan da ke sauya, sannan ya ci gaba a kan ina bincike har zuwa ina samun sababbin da ke sauya.

3. Hanyar Binciken Ta Annabi (Touch Test)

Don abin da ke aiki da high-voltage—kamar masu shi ne suka abin ko neutral grounding system of an arc suppression coil—hanyar binciken ta annabi yana tabbatar da ita batu saboda dalilai na kasa. Amma, don abin da ba ake aiki ba da enclosure da ake ground, hanyar binciken ta annabi yana iya amfani don ina bincike temperature ko heat rise. Kuma, secondary equipment yana iya amfani don ina bincike heating ko vibration ta hanyar binciken ta annabi.

4. Hanyar Binciken Ta Annabi (Hearing Test)

Primary and secondary electromagnetic devices a cikin substations—kamar masu shi ne suka abin, instrument transformers, relays, and contactors—sun fi sanin birnin da yake da tsari, rhythm, and consistency "hum" idan ake aiki da ake amfani. Wannan birnin yana haifi daga core and windings under AC excitation. Operation personnel yana da kyau a fara da birnin da ake da tsari. Idan ake faru fault, birnin da ba a si ba a jirgin sama zai iya faru—kamar irregular sounds ko even "cracking" or "popping" discharges. Ta hanyar ina kula changes in pitch, rhythm, and volume between normal and abnormal conditions, operators suna iya samun presence, nature, and location of equipment faults.