Lub hauv paus ntsiab lus, qhov zoo, kev siv ntawm kev tiv thaiv Relay
Ib qho kev tiv thaiv relay yog ib qho cuab yeej uas saib xyuas cov kab mob xws li amps, volts, thiab lwm yam, siv CTs thiab PTs thiab cuam tshuam rau kev tshawb pom ntawm qhov txawv txav. Nws yog ib qho khoom siv hluav taws xob uas tsim los rau kev mus ncig ntawm lub Circuit Court breaker thaum muaj kev txhaum los yog ...
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