Power metering field hta core equipment hku nna, wan n-gun meter a shadawn shadang gaw shi a jai lang mai ai mabyin masa ni hte data kam hpa mai ai lam hpe hkrak dawdan ya ai. Meter a range parameters ni hpe hpaji masa hku nna masat da ai gaw, n-gun atsam hpe hkrak hkrak shadawn lu na matu, system hte htuk manu hkra galaw lu na matu, jai lang ai ni a shim lum lam hpe lu la na matu madung rai nga ai.
Hpaji masa hku yu yang, wan n-gun shadawn shadang gaw, madung masat kumla lahkawng hte hpawng de da ai: "rated current" hte "maximum current." Ga shadawn, shinggyim masha ni lang ai langai sha lang ai electronic n-gun meter a matu, rated current (ga shadawn, 5A, 10A) gaw, masat da ai bungli galaw ai masa hta aten galu ngang grin ai hku bungli galaw lu na matu, npawt nhpang manu hpe madi madun ai, n-gun kaba dik htum (ga shadawn, 60A, 80A) gaw, meter a ma{xi1m}ter hpe madi madun ai. Ndai manu hpe lai mat yang, component grai katsi mat ai (sh) shadawn shadang shut ai lam ni law wa chye ai. Three-phase industrial wan n-gun meter ni a matu, shadawn shadang gaw grau kaba ai lit ra ai lam ni hpe mung hkap la ra ai. Model nkau mi gaw 0.1A kaw nna 200A du hkra shadawn shadang kaba hpe 0.5S-madang hkrak ai hku madi shadaw ya ai, shinggan shunt hte kiloampere shadawn shadang de pyi jat mai ai.
Meter range ra ai lam ni gaw, jai lang ai lam amyu myu hta grai shai hkat nga ai. Nta kata na wan n-gun lang ai masa hta, meter ni gaw, nta langai a wan n-gun yawng hpe 3kW kaw nna 10kW du hkra shinggrup ya ai (13A kaw nna 45A daram na wan n-gun hte bung ai). Ndai lam gaw shani shagu lang ai wan jak ni a ra kadawn ai lam ni hpe hkap la lu ai sha n-ga, nbung laru shazim ai jak hte wan jak hka lum ai jak zawn re ai n-gun kaba ai -arung arai ni hpe mung matut mahkai lu shangun ai. Industrial hte hpaga lam hta grau tsaw ai n-gun atsam ra nga ai. Ga shadawn, data center nta ni hta 200A (sh) dai hta jan ai n-gun rawng ai smart meter ni hpe bang nna, server cluster ni a kalang ta peak load hpe yu maram mai ai. Renewable energy grid-matut da ai system ni hta, meter ni gaw, maga lahkawng hku shadawn shadang (hpan shalat ai hte jai lang ai) hpe mung madi shadaw ra ai, range design gaw shawng de hte hpang de na current lahkawng yan hpe hkrak hkrak hkam la lu ra ai.
Meter range hpe lata ai gaw grau kaja ai ngu ai n re ai hpe sadi ra ai. Grai tsaw ai calibration current ni gaw, n-gun n law ai aten ni hta metering sensitivity hpe shayawm kau ya lu ai (ga shadawn, 100A meter gaw 5A hpe shadawn ai shaloi shut ai lam law wa chye ai), grai n-gun n law ai range gaw n-gun grai law wa na masa hpe grau law hkra shabyin ya lu ai. Dai ni na aten na hpaji rawng ai meter ni gaw ndai n-gun hpe law law-range hku nna tinang hkrai galai shai ai hpaji masa ni (wide turndown ratio design zawn re ai) hku nna rap ra hkra galaw ya ai. Matut mahkai module ni gaw load profile ni hpe aten dep upload galaw ya lu ai majaw, lang ai ni hpe wan n-gun lang ai lam hpe grau kaja hkra galaw ya lu ai. Meter shadawn shadang ni hpe madang masat da ai gaw hpaji masa madang ni hpe ngang ngang kang kang ra sharawng ai lam rai nna, n-gun atsam hpe atsawm sha jai lang lu na matu ahkyak ai daw langai mung rai nga ai. Power system ni grau hpaji rawng wa ai hte maren, hkrak tup ai meter range hpe galai shai ai lam gaw, ndai hpaga lam a matu matut nna madung myit tsang lam rai na re.