Qhov no yog tsuas yog xav txog kev xaiv ntawm transformer relay tiv thaiv kev txiav txim. Kev tiv thaiv ceev ceev ntawm qhov siab voltage sab ntawm lub transformer feem ntau yog siv los tiv thaiv sab nraud faults ntawm transformer. Hauv qhov chaw, yog qhov siab tshaj plaws luv luv tam sim no ntawm qhov qis voltage sab ntawm lub transformer tsis zam, qhov luv luv Circuit Court tam sim no qhov tseem ceeb nyob rau hauv qhov chaw tsis deb ntawm qhov hluav taws xob ntawm qhov hluav taws xob sab qis tsis hloov ntau npaum li cas thiab yog qhov pib zoo ib yam, uas yuav nthuav dav qhov kev tiv thaiv sai ntawm qhov hluav taws xob siab. sab ntawm lub transformer mus rau qhov tsawg-voltage outgoing kab, yog li poob lub selectivity Tom qab poob ntawm selectivity, kev tiv thaiv yog ntau txhim khu kev qha, tab sis nws coj inconvenience rau kev tso cai. Piv txwv li, ntau qhov chaw ua lag luam tam sim no tau nruab nrog 10KV chav faib khoom dav dav (10KV tsheb npav + cov hluav taws xob tawm hluav taws xob), thiab txhua qhov kev cob qhia yog nruab nrog cov chav faib hluav taws xob tsawg (ntiv nplhaib network txee + transformer). Yog hais tias lub Circuit Court breaker tsis khiav tawm qhov siab tshaj plaws luv luv tam sim no ntawm qhov tsawg-voltage sab ntawm lub transformer, nws yuav ua rau lub low-voltage lub ntsiab hloov, (ntiv nplhaib network txee load hloov fuse), thiab high-voltage Circuit Court breaker ua, uas yuav ua rau tsis yooj yim rau kev ua haujlwm