Wanpela tripela-feis eneji mita em i wanpela bikpela samting insait long ol pawa sistem we ol i save yusim long skelim eneji konsumsen insait long tripela-feis AC seket. Em i save kamap planti taim long ol indastriel, komesel, na ol bikpela residensiel aplikesen we i nidim bikpela pawa. Opereting prinsipel bilong en i stap long elektromagnetik induksen o ilektronik teknoloji, we i save skelim stret prodak bilong tripela-feis voltej na karent na bungim ol wantaim long taim bilong skelim pawa ol i yusim. Dispela atikol bai tok klia long ol as tingting bilong wok, ol bikpela samting, na rot bilong wok bilong wanpela tripela-feis eneji mita.
As tingting bilong wanpela 'Three-Phase Energy Meter'
Bikpela wok bilong wanpela tripela-feis eneji mita em long skelim eneji konsumsen insait long tripela-feis AC pawa. As tingting em long painim ol tripela-feis voltej na karent signal, skelim 'instantaneous product' bilong ol, na bihain bungim ol long taim bilong kisim olgeta eneji. Ol tri-feis pawa sistem i save yusim sta (Y) o delta (Δ) koneksen konfigurasen, na ol eneji mita i mas bihainim ol narapela narapela waia konfiguresen long mekim stretpela mesamen. Fomula bilong skelim lektrik eneji em:
Elektrik eneji (E)=voltej (U) × karent (I) × pawa fakta (cosφ) × taim (t)
Wanpela tripela-feis lektrik eneji mita i save skelim voltej na karent bilong tripela feis wantaim, na skelim pawa bilong wanwan feis, na long pinis bilong en em i bungim olgeta lektrik eneji.
Ol bikpela samting bilong wanpela 'Three-Phase Electric Energy Meter'
Wanpela tripela-feis lektrik eneji mita i gat ol dispela bikpela samting:
1.Voltej Sampling Yunit
Voltej sempling yunit i save kisim ol tripela-feis voltej signal long yusim ol voltej divida resista o voltej trensfoma (PT) na tanim ol i go long ol liklik-voltej signal we mita i ken prosesim. Dispela komponen i save mekim stretpela na seif voltej mesamen.
2.Current Sampling Unit
Karent sampling yunit i save yusim wanpela karent trensfoma (CT) o manganin shunt long senisim bikpela karent i go long ol liklik karent signal bilong mekim wok bihain. Sampling bilong nau i mas stret tru long daunim ol asua bilong mita.
3.Metering Chip (o Mechanical Counter)
Ol tripela-feis pawa mita bilong nau i save yusim ol 'metering chips' (olsem ADE series, ATT7022, na ol narapela), we inap long skelim hariap 'product' bilong 'voltage' na 'current' na mekim dijitel integresen long painimaut 'real-taim pawa na 'accumulated energy'. Ol 'traditional mechanical three-phase electricity meters' i save dipen long 'electromagnetic force' long tanim wanpela 'aluminium disk', we i save skelim pawa long rot bilong bungim ol 'revolution' long rot bilong wanpela 'gear mechanism'.
4.Maikroprosesa (MCU)
Insait long ol smat mita, 'microprocessor' em i wok bilong prosesim ol data, putim, toktok, na soim. Em i save kisim data long 'metering chip', skelim olgeta pawa, na menesim 'communication module' (olsem RS485, 'carrier communication', o 'wireless communication').
5.Displei na Komyunikesen Modul
Ol mita bilong pawa i save gat wanpela LCD displei we i soim ol infomesen bilong karent olsem pawa, voltej, karent, na eneji. Komyunikesen modul i sapotim rimot mita riding we i yusim ol protokol olsem Modbus na DL/T645, na dispela i mekim isi long ol pawa kampani long menesim ol data bilong yusim pawa.
Tripela-Fes Eneji Mita Operesen
1.Kisim signal
Eneji mita i save kisim pastaim tripela-feis voltej na karent signal yusim ol voltej trensfoma na karent trensfoma na mekim signal kondisening (olsem filtering na amplifikesen).
Kalkulesen bilong pawa
Mita sip o maikroprosesa i save skelim pawa bilong wanwan fez (P=U × I × cosφ) na bungim tripela-feis pawa long kisim olgeta pawa.
3.Eneji Akumulesen
Long rot bilong taim integresen (em, bungim pawa long taim), eneji mita i save skelim olgeta eneji we ol i yusim long wanpela haptaim na putim long intanel memori.
4.Data Displei na Komyunikesen
Eneji mita i soim 'real-time data long wanpela LCD na em i ken putim data i go long wanpela menesmen sistem long rot bilong wanpela komyunikesen intafes (olsem RS485, infraret, o waiales), na dispela i mekim wok bilong sekim na ritim mita longwe.
Tripela-Kain Eneji Mita bilong Fes
1.Mekanikel Tri-Fes Eneji Mita
Long yusim as tingting bilong 'electromagnetic induction', 'electromagnetic force' we i kamap long ol 'voltage' na 'current coils' i save kirapim rotesen bilong wanpela 'aluminium disk'. Bihain wanpela 'gear mechanism' i bungim namba bilong ol 'revolution', na long pinis bilong en i soim hamas eneji ol i yusim.
2.Elektronik Tripela-Fes Eneji Mita
Em i yusim wanpela 'high-precision ADC (analog-to-digital converter) long kisim 'voltage' na 'current' na em i skelim eneji long rot bilong wanpela 'microprocessor', na dispela i givim bikpela 'accuracy' na 'intelligent functionality'.
3.Smat Tri-Fes Eneji Mita
Em i gat ol wok bilong toktok, rimot kontrol, na lod menesmen, na em i sapotim tupela sait mita (olsem grid-konekted fotovoltaik pawa jeneresen), na dispela i mekim em i gutpela long ol smat grid.
Samari
Ol tri-feis eneji mita i save skelim stret tri-feis voltej na karent signal, kalkuletim, na bungim eneji konsumsen, na dispela i mekim ol i kamap ol bikpela ikwipmen bilong pawa mita na eneji menesmen. Wantaim ol nupela teknoloji, ol ilektronik na smat tri-feis eneji mita i wok long senisim ol tumbuna mekenikel mita, na ol i givim bikpela stretpela wok, gutpela wok, na gutpela wok. Sapos yu kliagut long ol wok bilong ol tripela-feis eneji mita, dispela inap helpim long stretim pawa sistem menesmen na mekim eneji i kamap gutpela moa.
