Tambayar Gargajiya na Tekunologi na Faduwar Kirkiya na Zafi Tsari

Maimaita ce yana da shiga daga fitaccen gudummawa zuwa maimaitaccen gudummawa. Tana da karamin gudummawa mai sarrafa da take da shiga da hankali da adadin karamin gudummawa masu siffar da kuma wasu adadin karamin gudummawa masu karfi, amma bai zama da shiga da hankali da adadin karamin gudummawa masu kisan gudummawa. Maimaita suna da sauran irin, kamar maimaita masu kisan gudummawa da maimaita masu hankali.

Maimaita masu kisan gudummawa da ke tattara gas: Wani irin wannan maimaita na amfani da karamin gudummawa da ke tattara gas a cikin tsakiyar gudummawa don samun gas da ke tattauna gudummawa. Tsawonsa ya fi yawa da kadan, amma an samu kyau a fannin amfani da ita.

Maimaita masu kisan gudummawa da ke tattara gas mai tsirrai: Wani irin wannan maimaita na amfani da gas mai tsirrai don tattauna gudummawa a lokacin da take da shiga. A lokacin da take da shiga, piston ya tsaftace gas da ke tattauna gudummawa. Gas mai tsirrai SF6 tana da kyau a fannin tattauna gudummawa, amma tsawonsa ya fi yawan magance da gas mai tsirrai ya kamata a yi amfani da abubuwa masu kyau a faduwar jiki kamar polytetrafluoroethylene (PTFE).

Maimaita masu tsirrai gas suna da amfani a cikin sabbin ring main units don tattauna gudummawa tare da ba suka yi amfani da vacuum interrupters. Su ne suka iya dogara maimaita-fuse combinations don tattauna gudummawa a cikin transformers, ta haka mutum ya fi son amfani da fuse da kuma circuit breakers don tattauna gudummawa a lokacin da karamin gudummawa ya haifar da transformer.

Maimaita masu kisan gudummawa da ke tattauna gudummawa a cikin vacuum: Wani irin wannan maimaita na amfani da medium mai vacuum don tattauna gudummawa, wanda tana da tsari mai kyau amma tana da kadan mai uku. Sabbin ring main units na zamani suna da amfani da three-position switches da vacuum load switches.

Maimaita masu kisan gudummawa da ke tattauna gudummawa a cikin mai shan ruwa: Wani irin wannan maimaita na amfani da energy da ke faruwa a cikin gudummawa don tattauna gudummawa a cikin shan ruwa. Tsawonsa ya fi yawa amma ya fi yawan magance, kuma ana amfani da shi a cikin American-style package substations.

Maimaita masu kisan gudummawa da ke tattauna gudummawa a cikin SF6: Wani irin wannan maimaita na amfani da gas SF6 don tattauna gudummawa, wanda tana da kyau a fannin tattauna gudummawa masu capacitance. Abubuwan da ake amfani don tattauna gudummawa a cikin SF6 sun hada da arc-extinguishing grids, arc-suppression coils, da compressed air arc extinction. Amfani da arc-extinguishing grid ya fi yawa, wanda tana da tsawon da ke tare da low-voltage air circuit breakers. A lokacin da take da shiga, gudummawa ya haifar da arc-extinguishing grid don tattauna gudummawa. Arc-extinguishing grids suna da sauran irin, kamar insulating materials da metallic materials.

Tsawonsa da ke tattauna gudummawa a cikin arc-extinguishing grid ya fi yawa da ya fi son amfani a cikin ring main units, kamar E2 electrical life requirements. Don samun kyau, ya kamata tushen abubuwan da tsawonsa.

Arc-suppression coil na amfani da electromagnetic coil, inda a lokacin da moving and fixed contacts sun haifar da gudummawa, root of the arc ya haifar da metal core inside the consumption coil. Adadin karamin gudummawa da ke tsaftace consumption coil ya faru magnetic field wanda tana da nasarar Lorentz force, wanda tana da shiga da root of the arc don ya haifar da high speed around the coil core. Wannan ya tattauna gudummawa tare da tsirrai gas mai kyau, tare da current crosses zero. Consumption coils suna da kyau a fannin breaking performance da kuma tsari mai kyau, suna iya da shiga da 200 operations of active load interruption.

Don samun SF6, an yi amfani da parallel vacuum arc extinguishing load switches. A lokacin da take da shiga, parallel vacuum interrupter ya haifar da adadin karamin gudummawa a cikin vacuum interrupter don tattauna gudummawa. Wannan hanyar ya fi yawa tsawonsa, tare da same operating mechanism da SF6 load switches. Tana da kyau a fannin size, convenient installation, easy operation, da kadan kadan.

Daga baya, don samun SF6, an yi amfani da environmental gas arc extinction, tare da increase contact gap da sauransu. Wannan ya tattauna gudummawa a cikin ring main units tare da environmental gases tare da ba suka yi amfani da vacuum switches.