Re: 12-volt implements on 6-volt system

Posted by txblu on December 14, 2004 at 09:11:18 from (199.46.199.232):

In Reply to: 12-volt implements on 6-volt system posted by Tim B on December 14, 2004 at 08:56:55:

Couple of numbers for you. Depending on the way your winch is wound (series, parallel, series parallel) it may work your winch.......but.

A winch is a work device. Work means HP. HP means Watts. At 6 V, watts means lotta amps.

Let's say I have a 2 hp winch and use it to it's 2 hp capacity. I realize the way you are tuggin on your load helps determine how fast it will move a given distance for a given hp but:

2 hp @741 watts/hp = 1482 watts (forget losses for the calc. Would just make it worse.)

So dividing watts by voltage, we get 1482/6 = 247 amperes.

Now to start your n you only need 100 amperes or so. So you are asking of your electrical system bout 2.5 times what you ask of it to crank your engine (couple of seconds to do that) and ask for it for as long as you are winching the load.

Get the Fire Truck something is gonna be on fire!!!

Mark

Follow Ups:

• Re: 12-volt implements on 6-volt system Reido in MO 14:43:13 12/14/04 (1)
  • Re: 12-volt implements on 6-volt system txblu 05:53:41 12/15/04 (0)

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