Kuchuluka kwa ntchito

♦ S7D zowononga ma circuit zili ndi ubwino wa mawonekedwe ang'onoang'ono, kulemera kwake, ntchito zabwino komanso zodalirika, kusweka kwakukulu, kuyenda mofulumira komanso moyo wautali.
♦ Ponena za kuyika kwa kalozera, kesi ndi magawo, amatengera kukana kwambiri komanso kukana mapulasitiki.
♦ Amagwiritsidwa ntchito makamaka kudera la AC 50Hz/60Hz lokhala ndi ma volage 415V kapena ocheperapo omwe ali ndi chitetezo chochulukirapo komanso chachifupi, ndikupanga ndi kuswa chipangizo chamagetsi ndi kuyatsa movutikira.
♦ The mankhwala akhoza kuikidwa ndi undervoltage kumasulidwa ndi shunt kumasulidwa, komanso angagwiritsidwe ntchito kulekanitsa, ndi kuteteza undervoltage wa dera ndi kuswa mtunda wautali.