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vtr.nu - VTR-Klubben i Sverige • Visa tråd - Hjälp med startström 12V DC

Hjälp med startström 12V DC



  

Hjälp med startström 12V DC

Inläggav Starken » ons jul 04, 2012 9:50 pm

Det är nästan att jag skäms, men jag behöver hjälp att räkna ut en ungefärlig startström på en 12V dc motor. Förbrukning efter start 11A. Kan jag klara mig med ett 16A relä? Var länge sedan jag höll på md detta så jag är osäker. Det är ett relä till tilt en Honda BF50 (båtmotor). Ett nytt relä kostar 2000kr och det har jag inte lust att betala. Lägger hellre de slantarna på min VTR ;)
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Re: Hjälp med startström 12V DC

Inläggav Piff » tor jul 05, 2012 5:40 pm

I min värld så beror det helt på hur tungt din elmotor ska jobba. En så pass liten motor varvar ju upp på nolltid om du inte maxbelastar den. Som jag förstår så drar den ju dessutom bara 11A vid drift och då bör allt hålla. Tweety har säkert nån lurig formel, själv kör jag ofta med mätare och sunt förnuft. Kan tillägga att den mesta informationen står stämplad på mina motorer. Skruvar ofta på motorer med flera hundra kilos vikt.
<---- Killen som har VTR-Dekaler till salu...

Piff

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Re: Hjälp med startström 12V DC

Inläggav Tweety » tor jul 05, 2012 10:22 pm

Startströmmen är generellt 1,6 ggr drift för små DC motorer... Dvs i ditt fall 11*1,6 = 17,6... Men det är med säkerhetsmarginal, det bör troligen fungera helt OK med 16A, men inga garantier...
VTR 1000F + CBR 929RR + CBR 954RR + CBR 1000RR + VTR 1000SP1/2 (RC-51) + 1 st galning =
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