Kujekesa Pfungwa dzeMagetsi eMagetsi muKushanda kweTransformer

2025-08-28

Kunyatsojeka kweMashoko
Sangano reWorld Health Organization (WHO) neInternational Commission on Non-Ionizing Radiation Protection (ICNIRP) vanosiyanisa zvakanyanya pakati pe "electromagnetic fields" (pasi pe100 kHz) ne "electromagnetic radiation" (pamusoro pe100 kHz). Zvivako zvemagetsi zvinogadzira Minda yemagetsi ye50Hz frequency, kwete mwaranzi yemagetsi. Misiyano mikuru:

Mwaranzi yemagetsi: Kupararira kwesimba kuburikidza nemafungu emagetsi (semuenzaniso, mafungu eredhiyo, maX-ray)
Minda yemafrequency emagetsi: Minda isingachinji kuburikidza nemagetsi asingaparadzirwe pasina kupararira kwemafungu

2.Hunhu hwehunyanzvi
Minda yetransformer inoratidza hunhu hwakasiyana:

Kakawanda: 50Hz (kureba kwewavelength 6,000km)
Kuora kwemunda: Simba remagineti rinoderera ne1/d² (d=daro)
Kudzivirira: Zvivharo zvesimbi zvinoderedza minda ne>90%
Ruzivo rwekuyera:

Kureba	Munda weMagetsi (V/m)	Munda weMagineti (μT)
1m	20-200
5m

(Data kubva kumishumo yekutarisa grid

3.Kuenzanisa Kwekuchengetedza
Kuongorora kwekuenzanisa kunoratidza:

Minda yetransformer: 0.1-1% yemiganhu yeICNIRP (5kV/m E-field, 100μT B-field)
Midziyo yemumba: Maovheni emu microwave (1793V/m), michina yekuomesa bvudzi (600V/m)
Muganho wekuchengetedza: 10,000μT yemigumisiro yakaipa ipapo ipapo (WHO)

4. Kubvumirana kwehutano
Kuongorora data kwemakore anopfuura makumi matatu kunosimbisa kuti:

Hapana hukama hwechikonzero pakati peminda ye50Hz nezvirwere zvegomarara/mwoyo
Zviratidzo zvechinguvana (musoro/kuneta) zvinongoitika chete maawa anopfuura masere pazuva panosangana minda ye >100μT
Kuchengetedzeka pabasa: Vashandi vegrid vanoonekwa zuva nezuva havaratidzi maitiro ehutano asina kujairika

5.Maitiro Ekuderedza Dambudziko
Zvinokurudzirwa zvekudzivirira:

Chengetedza daro riri pamusoro pe1.5m kubva kumatransformer e10kV
Shandisa zvivharo zvesimbi zvakagadzikwa pasi pakuisa panze
Isa zvidziviriro zvekudzivirira (zvakaenzana ne lead ye>3mm) munzvimbo dzinonzwa kusuruvara

Kujekeswa uku kwehunyanzvi kunoenderana nezvinodiwa pasi rose uye zviyero zve empirical, zvichiratidza kuti nzvimbo dzemagetsi dze transformer dziri mukati mezviyero zvekushanda zvakachengeteka.