regulirani elektromotorni pogoni tri glavne grupe pogona
TRANSCRIPT
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Regulirani elektromotorni pogoni
tri glavne grupe pogona- regulacija standardnih asinhronih (ili sinhronih)
motora i to samo dodatnim ure đajima- regulacija pomo ću sklopova sastavljenih
od više (rotiraju ćih) jedinica- regulacija istosmjernih motora s nezavisnom
uzbudom
f~
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Asinkroni motori
Regulacja brzine vrtnje promjenom otpora rotorskog kruga ili naponom napajanja motora
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Istosmjerni motori
Regulacija brzine vrtnje istosmjernog motora s neza visnom uzbudom
parametrimoment motora
brzina vrtnje motora
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Regulirani elektromotorni pogon s istosmjernim moto rom
smjer
brzina (uzbuda)
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pomo ćni trafo
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Regulacija i automatska regulacija rudni čkih pogona
automatska elektroni čka regulacija elektromotornih pogona kod strojeva z a kopanje rude- u podzemnom radu: otkopni strojevi i strojevi za pr obijanje hodnika- na površinskim kopovima: bageri (rotacijski, žli čari)
Regulacija otkopnih strojeva
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regulacija kretanja stroja vitlom - regulacija opte rećenosti reznih organa
motori reza ča 2 x 150 kW do 2 x 300 kW motori vitla 25 kW - 30 kW do 50 kW - 60 kW (horizontalan pomak rezača) motori hidrauli čkih crpki oko 5 kW (visina reza ča) upravljanje hidraulikom elektro-ventilima
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Regulacija elektromotornih pogona velikih bagera
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Regulacija elektromotornih pogona u transportu
transportne trake rudnika bakrene ruda če Les Pelambres Čile
8.700 t/h širina trake 1,8 m brzina trake 6 m/s
10 motora svaki snage 2,5 MW 2 motora mlinova svaki snage 13 MW
za > 30% kapaciteta trake →→→→ motori kao generatori →→→→ napajaju mlinove + 13 MW u mrežu
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POTROŠNJA ELEKTRI ČNE ENERGIJE IOSNOVNI RUDNIČKI POGONI
Općenito
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