Mfundo yogwirira ntchito ya vacuum circuit breaker

Poyerekeza ndi ophwanya ma circuit ena, mfundo yogwirira ntchito ya vacuum circuit breaker ndi yosiyana ndi ya arc kuzimitsira sing'anga.Mu vacuum mulibe conductive medium, zomwe zimapangitsa kuti arc azimitse mwachangu.Chifukwa chake, kusiyana pakati pa zolumikizana zosunthika komanso zosasunthika za ophwanya dera ndizochepa kwambiri.

Makhalidwe a insulation a vacuum
Vacuum ili ndi mphamvu zotchinjiriza.M'malo owononga magetsi, mpweya ndi woonda kwambiri, kuyenda kwaulere kwa mamolekyu a gasi kumakhala kwakukulu, ndipo mwayi wa kugundana ndi wochepa kwambiri.Choncho, kugunda dissociation si chifukwa chachikulu chowona malo kusiyana kusweka, koma particles zitsulo precipitated ndi elekitirodi pansi pa zochita za mkulu-mphamvu magetsi magetsi ndiye chinthu chachikulu kuchititsa kutchinjiriza kuwonongeka.
Mphamvu ya kutchinjiriza mu kusiyana kwa vacuum sikungokhudzana ndi kukula kwa kusiyana ndi kufanana kwa gawo lamagetsi, komanso kumakhudzidwa kwambiri ndi katundu wa electrode zipangizo ndi pamwamba.Pansi pa mtunda waung'ono (2-3 mm), kusiyana kwa vacuum kumakhala ndi mawonekedwe apamwamba kwambiri kuposa mpweya wothamanga kwambiri ndi mpweya wa SF6, ndichifukwa chake mtunda wotsegulira wa vacuum circuit breaker nthawi zambiri umakhala wocheperako.
Mphamvu ya ma elekitirodi pamagetsi owonongeka imawonetsedwa makamaka ndi mphamvu yamakina (mphamvu yamakina) yazinthu komanso malo osungunuka azitsulo.Kukwera kwamphamvu kwamphamvu ndi malo osungunuka, kumapangitsanso mphamvu yamagetsi ya electrode pansi pa vacuum.

mfundo yogwirira ntchito
Pamene mpweya wa vacuum wapamwamba umayenda pa zero point, plasma imafalikira mofulumira ndikuzimitsa arc kuti amalize cholinga chodula panopa.