1. Nyob rau hauv Circuit Court, nws plays lub luag hauj lwm ntawm tig rau thiab tawm lub hwj chim mov, thiab kuj muaj cov nyhuv ntawm under-voltage tso tawm. Thaum lub zog hluav taws xob yog 0, nws muaj peev xwm tswj tau loj thiab siv los tswj lub voj voog. Nws muaj lub neej ua haujlwm ntev thiab txo qhov cuam tshuam ntawm Circuit Court ntawm tag nrho cov kab hluav taws xob.
2. AC contactors siv hluav taws xob. Thaum qhov tam sim no loj heev, lawv tuaj yeem raug tso cai kom dhau, yog li nws yeej muaj qhov overcurrent lossis tiv thaiv kev ua haujlwm.
3. Thaum xob laim, yog tias muaj xob laim hauv cov xov hlau, nws tuaj yeem txiav tawm lub zog hluav taws xob, yog li tiv thaiv cov khoom siv hluav taws xob hauv tsev los ntawm kev puas tsuaj. Qhov tshwm sim ncaj tshaj plaws yog tias yuav muaj teeb meem tripping.
