Muhimmancin na'urar tsayayyar VLF don jurewar gwajin ƙarfin lantarki

A lokacin aikin lodi na janareta, rufin zai lalace a hankali a ƙarƙashin aikin filin lantarki, zafin jiki da girgizar injin na dogon lokaci, gami da lalacewa gabaɗaya da ɓarna kaɗan, yana haifar da lahani.Gwajin jurewar wutar lantarki na janareta hanya ce mai inganci kuma kai tsaye don gano ƙarfin rufewar janareta, kuma muhimmin abun ciki ne na gwaje-gwajen rigakafi.Don haka, gwajin Hipot shima hanya ce mai mahimmanci don tabbatar da amintaccen aiki na janareta.

HV Hipot GDVLF Series 0.1Hz Programmable Ultra-low Frequency(VLF) High Voltage Generator

Hanyar aiki na ultra-low mitar juriya gwajin ƙarfin lantarki don janareta yayi kama da hanyar aiki don kebul na sama.Mai zuwa shine ƙarin bayani na wurare daban-daban.
1. Ana iya yin wannan gwajin yayin mika mulki, gyaran fuska, maye gurbin juzu'i da gwaje-gwaje na yau da kullun.Gwajin jurewar wutar lantarki na motar tare da 0.1Hz matsananci-ƙananan mitar ya fi tasiri ga lahanin rufin ƙarshen janareta fiye da mitar wutar lantarki ta jure gwajin ƙarfin lantarki.Karkashin wutar lantarki ta mitar wutar lantarki, tunda capacitive halin yanzu da ke gudana daga sandar waya yana haifar da raguwar wutar lantarki mai girma lokacin da yake gudana ta hanyar semiconductor anti-corona Layer a waje da rufin, ƙarfin lantarki akan rufin sandar waya a ƙarshen yana raguwa;A cikin yanayin mitar ultra-low, capacitor current yana raguwa sosai, kuma raguwar wutar lantarki a kan semiconductor anti-corona Layer shima yana raguwa sosai, don haka wutar lantarki a ƙarshen insulation ya fi girma, wanda ke da sauƙin samun lahani. ;
2. Hanyar haɗi: Ya kamata a gudanar da gwajin a cikin matakai, lokacin da aka gwada yana da matsa lamba, kuma lokacin da ba a gwada shi ba yana da gajeren lokaci zuwa ƙasa.
3. Dangane da buƙatun ƙa'idodin da suka dace, ana iya ƙididdige ƙimar ƙimar ƙarfin gwaji bisa ga dabara mai zuwa:

Umax=√2βKUo A cikin dabarar, Umax: shine ƙimar kololuwar ƙimar gwajin 0.1Hz (kV) K: yawanci yana ɗaukar 1.3 zuwa 1.5, gabaɗaya yana ɗaukar 1.5

Uo: ƙimar ƙimar janareta stator winding Voltage (kV)

β: Daidaita daidaitaccen ƙarfin lantarki na 0.1Hz da 50Hz, bisa ga buƙatun ƙa'idodin ƙasarmu, ɗauki 1.2

Misali: don janareta tare da ƙimar ƙarfin lantarki na 13.8kV, hanyar ƙididdigewa na ƙimar ƙimar ƙimar ƙarfin ƙarancin ƙarancin mitar ita ce: Umax=√2 × 1.2 × 1.5 × 13.8≈35.1(kV)
4. Ana aiwatar da lokacin gwaji bisa ga ka'idodin da suka dace
5. A cikin tsarin jurewar wutar lantarki, idan babu sauti mara kyau, wari, hayaki da nunin bayanai marasa ƙarfi, ana iya la'akari da cewa rufin ya jure gwajin gwajin.Don ƙarin fahimtar halin da ake ciki na rufin, ya kamata a kula da yanayin yanayin da ake ciki sosai kamar yadda zai yiwu, musamman ga sassan da aka sanyaya iska.Kwarewa ta nuna cewa saka idanu na bayyanar na iya samun abubuwan da ba a saba gani ba na insulation wanda na'urar ba za ta iya nunawa ba, kamar su corona surface, fitarwa, da sauransu.