Izindaba - I-Energy Meter's No-load Behaviour

Izimo kanye Nomkhuba weImitha yamandla's No-load Behaviour

Uma imitha yamandla ingasebenzi kahle, izimo ezimbili kufanele zaneliswe.(1) Akufanele kube khona umsinga kumjikelezo wamanje wemitha kagesi;(2) imitha kagesi akufanele ikhiqize ama-pulse angaphezu kwelilodwa.

Ukuziphatha kokungalayishi kwemitha yamandla kunganqunywa kuphela uma izimo ezimbili ezingenhla zihlangatshezwana nazo ngesikhathi esisodwa.Uma ukuziphatha kokungalayishi kubangelwe ngaphezu kuka-115% we-voltage yereferensi, ngokwemithethonqubo efanele, imitha kagesi ifanelekile, engeke ithathwe njengokuziphatha okungalayishiwe;kodwa uma kuziwa kubasebenzisi, njengoba ukubuyiselwa kwemali kukagesi kuthinteka, kusobala ukuthi kufanele kuthathwe njengokuziphatha okungalayishiwe esikhundleni sokujwayelekile.

Ukuze wenze isinqumo esifanele, ukuhlaziya kwenziwa ngokwemibandela engenhla:

I. Awukho umsinga kumjikelezo wamanje wemitha kagesi

Okokuqala, umsebenzisi akasebenzisi ukukhanya, abalandeli, i-TV nezinye izinto zasendlini, akusho ukuthi akukho okwamanje kumjikelezo wamanje wemitha kagesi.Izizathu zimi kanje:

1. Ukuvuza kwangaphakathi

Ngenxa yokonakala, ukulimala kokufakwa kwezintambo ezisendlini nezinye izizathu, ukuxhunywa kukagesi kwenzeka phansi futhi ukuvuza kwamandla kungenza imitha isebenze ngesikhathi sokuvala.Lesi simo asihlangabezani nombandela (1), ngakho-ke akufanele sithathwe njengokuziphatha okungenamthwalo.

2. Thatha imitha yamandla amancane axhunywe kumitha enkulu njengesibonelo.Ifeni yosilingi ngaphandle kwensingo ivulwa ngephutha ebusika.Nakuba kungekho ukusetshenziswa kukagesi okusobala ngaphandle komsindo nokukhanya, imitha kagesi ibisebenza ngomthwalo, futhi vele ayinakubhekwa njengokuziphatha okungalayishiwe.

Ngakho-ke, ukuze kunqunywe ukuthi imitha yamandla kagesi ngokwayo ayisebenzi kahle yini, inkinobho eyinhloko endaweni yokugcina imitha yamandla kagesi kufanele inqanyulwe, futhi umugqa wesigaba osekupheleni kweswishi eyinhloko kufanele unqanyulwe kwezinye izimo. .

II.Imitha kagesi akufanele ikhiqize ama-pulse angaphezu kweyodwa

Ngemva kokuqinisekisa ukuthi akukho okwamanje kumjikelezo wamanje wemitha kagesi, kunganqunywa ukuthi ukuziphatha okungekho umthwalo noma cha ngokusekelwe eqinisweni ukuthi ukukhanya kwe-pulse kuyakhanya noma cha.Ukuhlolwa okukhiphayo kwemitha akufanele kube ne-pulse engaphezu kweyodwa.

Ngemva kokuqinisekisa ukuziphatha okungalayishi, bhala phansi isikhathi t(umzuzu) we-pulse ngayinye kanye ne-c(r/kWh) engashintshi yemitha kagesi, bese ubuyisela inkokhiso kagesi ngokwefomula elandelayo:

Ugesi obuyiselwe: △A=(24-T) ×60×D/Ct

Kufomula, u-T usho isikhathi sokusetshenziswa kukagesi nsuku zonke;

U-D usho inani lezinsuku zemitha kagesi yokuziphatha okungalayishi.

III.Ezinye izimo zokungalayishi imitha kagesi:

1. Ikhoyili yamanje i-short-circuiting ngenxa yokulayisha ngokweqile nezinye izizathu, futhi i-voltage esebenzayo magnetic flux ithintwa yilokhu, ehlukana ibe izingxenye ezimbili zokugeleza endaweni ehlukene kanye nesikhathi esihlukile, okuholela ekusebenzeni kungasebenzi.

2. Imitha ye-watt-hora esebenzayo enezigaba ezintathu ayifakiwe ngokuvumelana nokulandelana kwesigaba esishiwo.Ngokuvamile, imitha yezigaba ezintathu kufanele ifakwe ngokulandelana kwesigaba esihle noma ukulandelana kwesigaba esidingekayo.Uma ukufakwa kwangempela kungenziwanga ngokwezidingo, amanye amamitha wamandla athikamezwe kabi yi-electromagnetic kwesinye isikhathi azokwenza ukuziphatha kokungalayishi, kodwa angaqedwa ngemva kokulungisa ukulandelana kwesigaba.

Ngamafuphi, uma ukuziphatha okungenamthwalo kwenzeka, akudingekile kuphela ukuhlola isimo semitha kagesi ngokwayo, kodwa futhi ngezinye izikhathi hlola i-wiring namanye amadivaysi okulinganisa.